/* roulang page: index */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0E1729;
  --panel-2:#111D35;
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --text:#F8FAFC;
  --muted:#94A3B8;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --green:#22C55E;
  --red:#EF4444;
  --gold:#FACC15;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 20px 60px rgba(2,6,23,.55);
  --glow:0 0 25px rgba(56,189,248,.35);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font-family:inherit}
.container{width:min(1240px,92%);margin:0 auto}
.section{padding:84px 0;position:relative}
.section-alt{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}
.section-title{font-size:clamp(1.7rem,3.4vw,2.7rem);font-weight:800;line-height:1.2;letter-spacing:0;margin-bottom:16px}
.section-sub{color:var(--muted);max-width:760px;font-size:1.02rem;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:14px}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--cyan);border-radius:2px}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:linear-gradient(180deg,rgba(17,29,53,.92),rgba(8,18,41,.88));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  position:relative;
  overflow:hidden;
}
.card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}
.card h3{font-size:1.1rem;font-weight:700;margin-bottom:10px;line-height:1.35}
.card p{color:var(--muted);font-size:.95rem}
.icon-box{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(56,189,248,.2));
  border:1px solid var(--line-strong);color:var(--cyan);
  font-size:1.3rem;margin-bottom:18px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;
  font-size:.76rem;font-weight:700;letter-spacing:.02em;
  background:rgba(37,99,235,.18);border:1px solid var(--line-strong);color:var(--cyan);
}
.badge-green{background:rgba(34,197,94,.14);border-color:rgba(34,197,94,.45);color:#4ADE80}
.badge-gold{background:rgba(250,204,21,.14);border-color:rgba(250,204,21,.45);color:var(--gold)}
.badge-red{background:rgba(239,68,68,.15);border-color:rgba(239,68,68,.45);color:#F87171}
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(3,7,18,.82);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:74px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.05rem;line-height:1.15;max-width:300px}
.logo-mark{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.1rem;box-shadow:var(--glow);
}
.logo span{background:linear-gradient(90deg,#fff,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none}
.nav-links a{padding:9px 14px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--muted);transition:.22s}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(56,189,248,.12)}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:12px;font-weight:700;font-size:.92rem;
  border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap;
}
.btn-ghost{color:var(--cyan);border-color:var(--line-strong);background:rgba(56,189,248,.06)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  box-shadow:0 0 20px rgba(56,189,248,.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.65)}
.btn-gold{
  color:#111827;
  background:linear-gradient(135deg,#FACC15,#F59E0B);
  box-shadow:0 0 22px rgba(250,204,21,.35);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(250,204,21,.6)}
.mobile-toggle{display:none;background:transparent;border:1px solid var(--line-strong);color:var(--cyan);width:44px;height:44px;border-radius:12px;font-size:1.1rem}
.hero{
  padding:150px 0 80px;position:relative;
  background:
    radial-gradient(circle at 82% 12%,rgba(37,99,235,.22),transparent 45%),
    radial-gradient(circle at 8% 80%,rgba(56,189,248,.14),transparent 45%),
    linear-gradient(160deg,#030712,#081229 60%,#030712);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:52px 52px;mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 90%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.18fr .82fr;gap:46px;align-items:center}
.hero h1{font-size:clamp(2rem,4.8vw,3.7rem);font-weight:900;line-height:1.14;margin-bottom:22px}
.hero h1 span{background:linear-gradient(90deg,var(--cyan),var(--holo));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{color:var(--muted);font-size:1.05rem;max-width:660px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.metric-bar{display:flex;flex-wrap:wrap;gap:14px}
.metric{
  flex:1;min-width:150px;
  background:rgba(14,23,41,.75);border:1px solid var(--line);
  border-radius:14px;padding:16px;backdrop-filter:blur(10px);
}
.metric b{display:block;font-size:1.45rem;color:var(--cyan);font-weight:800}
.metric small{color:var(--muted);font-size:.82rem}
.hero-panel{
  background:linear-gradient(180deg,rgba(17,29,53,.95),rgba(3,7,18,.9));
  border:1px solid var(--line-strong);border-radius:22px;padding:28px;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.hero-panel::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--cyan),transparent)}
.chain-row{display:flex;flex-direction:column;gap:14px;margin-top:22px}
.chain{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-radius:14px;background:rgba(3,7,18,.6);border:1px solid var(--line)}
.chain-left{display:flex;align-items:center;gap:12px}
.chain-dot{width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green)}
.chain b{font-size:.94rem}
.chain small{color:var(--muted);display:block;font-size:.8rem}
.chain time{font-size:.84rem;color:var(--cyan);font-weight:700}
.kpi-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.kpi{
  background:linear-gradient(180deg,rgba(17,29,53,.9),rgba(8,18,41,.8));
  border:1px solid var(--line);border-radius:16px;padding:24px;text-align:left;
}
.kpi i{font-size:1.35rem;color:var(--cyan);margin-bottom:12px;display:block}
.kpi b{font-size:1.7rem;display:block;font-weight:800}
.kpi span{color:var(--muted);font-size:.88rem}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{border-radius:18px;padding:28px;border:1px solid var(--line)}
.compare-old{background:rgba(120,20,20,.12);border-color:rgba(239,68,68,.28)}
.compare-new{background:linear-gradient(160deg,rgba(37,99,235,.18),rgba(56,189,248,.08));border-color:var(--line-strong)}
.compare-col h3{margin-bottom:18px;font-size:1.2rem}
.compare-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.compare-list li{display:flex;gap:10px;color:var(--muted);font-size:.95rem}
.compare-list i{margin-top:4px}
.timeline{position:relative;display:flex;flex-direction:column;gap:0}
.timeline-item{display:grid;grid-template-columns:120px 1fr;gap:24px;padding:24px 0;border-bottom:1px solid var(--line)}
.timeline-item:last-child{border-bottom:none}
.timeline-year{font-weight:800;color:var(--cyan);font-size:1.05rem}
.timeline-body h3{margin-bottom:8px}
.timeline-body p{color:var(--muted);font-size:.95rem}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{position:relative;padding:28px 22px;border-radius:18px;background:rgba(14,23,41,.7);border:1px solid var(--line)}
.step::before{counter-increment:step;content:"0" counter(step);font-size:2rem;font-weight:900;color:rgba(56,189,248,.28);display:block;margin-bottom:10px}
.step h3{font-size:1rem;margin-bottom:8px}
.step p{font-size:.9rem;color:var(--muted)}
.post-list{display:grid;grid-template-columns:1.35fr .65fr;gap:26px;align-items:start}
.post-card{
  display:grid;grid-template-columns:210px 1fr;gap:20px;align-items:stretch;
  background:rgba(14,23,41,.72);border:1px solid var(--line);border-radius:18px;padding:16px;
  transition:.25s;margin-bottom:18px;
}
.post-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow)}
.post-card img{width:100%;height:100%;min-height:150px;object-fit:cover;border-radius:12px}
.post-card h3{font-size:1.05rem;margin-bottom:8px;line-height:1.35}
.post-card p{color:var(--muted);font-size:.9rem;margin-bottom:12px}
.post-meta{display:flex;align-items:center;gap:14px;font-size:.8rem;color:var(--muted)}
.post-side{background:linear-gradient(180deg,rgba(17,29,53,.9),rgba(8,18,41,.85));border:1px solid var(--line);border-radius:18px;padding:24px}
.empty-state{color:var(--muted);font-size:.92rem;padding:18px;border:1px dashed var(--line-strong);border-radius:14px}
.guarantee-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.faq{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{background:rgba(14,23,41,.7);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.faq-q{width:100%;background:transparent;border:none;color:#fff;text-align:left;padding:20px 22px;font-size:1rem;font-weight:700;display:flex;justify-content:space-between;gap:16px;cursor:pointer}
.faq-q i{color:var(--cyan);transition:.25s}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--muted);padding:0 22px;font-size:.94rem}
.faq-item.open .faq-a{max-height:260px;padding-bottom:20px}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.cta-band{
  border-radius:24px;padding:48px;text-align:center;
  background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(56,189,248,.16));
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(1.6rem,3.2vw,2.5rem);margin-bottom:16px;font-weight:800}
.cta-band p{color:#CBD5E1;max-width:720px;margin:0 auto 26px}
.footer{background:#02040C;border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:28px;margin-bottom:40px}
.footer h4{font-size:.9rem;margin-bottom:16px;color:#fff}
.footer p,.footer a{color:var(--muted);font-size:.88rem}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer a:hover{color:var(--cyan)}
.footer-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.82rem;color:#64748B}
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;width:58px;height:58px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 35% 30%,#1E3A8A,#030712);
  border:2px solid var(--cyan);color:var(--cyan);font-size:1.3rem;
  box-shadow:0 0 22px rgba(56,189,248,.5);animation:float 3s ease-in-out infinite;
}
.fab::after{content:"";position:absolute;top:-2px;right:-2px;width:14px;height:14px;border-radius:50%;background:var(--red);border:2px solid #fff}
.fab:hover{transform:scale(1.1);opacity:1}
.fab i{transition:.4s}
.fab:hover i{transform:rotate(360deg)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
.trust-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.trust-row span{display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:10px;background:rgba(3,7,18,.55);border:1px solid var(--line);font-size:.82rem;color:var(--muted)}
.trust-row i{color:var(--green)}
.hot-tag{position:absolute;top:14px;right:14px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{padding:8px 15px;border-radius:999px;background:rgba(56,189,248,.1);border:1px solid var(--line);font-size:.82rem;color:var(--muted);transition:.2s}
.chip:hover{color:var(--cyan);border-color:var(--line-strong);background:rgba(56,189,248,.18)}
.feature-media{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
.feature-media img{border-radius:20px;border:1px solid var(--line-strong);box-shadow:var(--shadow);width:100%;height:340px;object-fit:cover}
.feature-list{list-style:none;display:flex;flex-direction:column;gap:14px;margin-top:20px}
.feature-list li{display:flex;gap:12px;color:var(--muted);font-size:.95rem}
.feature-list i{color:var(--cyan);margin-top:4px}
@media(max-width:1024px){
  .hero-grid,.post-list,.feature-media{grid-template-columns:1fr}
  .kpi-strip,.steps{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .logic-hide{display:none}
}
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:74px;left:0;right:0;flex-direction:column;background:rgba(3,7,18,.98);padding:18px 5%;border-bottom:1px solid var(--line);gap:4px}
  .nav-links.show{display:flex}
  .nav-links a{width:100%;display:block}
  .mobile-toggle{display:flex;align-items:center;justify-content:center}
  .nav-actions .btn{padding:10px 14px;font-size:.82rem}
  .hero{padding:130px 0 64px}
  .compare,.grid-2,.grid-3,.grid-4,.guarantee-grid{grid-template-columns:1fr}
  .post-card{grid-template-columns:1fr}
  .post-card img{height:200px;min-height:0}
  .timeline-item{grid-template-columns:1fr;gap:8px}
  .cta-band{padding:34px 22px}
}
@media(max-width:520px){
  .kpi-strip,.steps{grid-template-columns:1fr}
  .logo{font-size:.88rem;max-width:190px}
  .nav-actions .btn-ghost{display:none}
  .hero-cta .btn{width:100%}
  .metric{min-width:100%}
  .footer-grid{grid-template-columns:1fr}
  .fab{left:12px;bottom:88px;width:54px;height:54px}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0E1729;
  --panel-2:#111D35;
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --text:#F8FAFC;
  --muted:#94A3B8;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --green:#22C55E;
  --red:#EF4444;
  --gold:#FACC15;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 20px 60px rgba(2,6,23,.55);
  --glow:0 0 25px rgba(56,189,248,.35);
}
*,*::before,*::after{box-sizing:border-box}
*{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font-family:inherit}
ul{list-style:none}
.container{width:min(1240px,92%);margin:0 auto}
.section{padding:84px 0;position:relative}
.section-alt{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}
.section-title{font-size:clamp(1.7rem,3.4vw,2.7rem);font-weight:800;line-height:1.2;letter-spacing:0;margin-bottom:16px}
.section-sub{color:var(--muted);max-width:760px;font-size:1.02rem;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:14px}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--cyan);border-radius:2px}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:linear-gradient(180deg,rgba(17,29,53,.92),rgba(8,18,41,.88));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  position:relative;
  overflow:hidden;
}
.card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}
.card h3{font-size:1.1rem;font-weight:700;margin-bottom:10px;line-height:1.35}
.card p{color:var(--muted);font-size:.95rem}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;
  font-size:.76rem;font-weight:700;letter-spacing:.02em;
  background:rgba(37,99,235,.18);border:1px solid var(--line-strong);color:var(--cyan);
}
.badge-green{background:rgba(34,197,94,.14);border-color:rgba(34,197,94,.45);color:#4ADE80}
.badge-gold{background:rgba(250,204,21,.14);border-color:rgba(250,204,21,.45);color:var(--gold)}
.badge-red{background:rgba(239,68,68,.15);border-color:rgba(239,68,68,.45);color:#F87171}
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(3,7,18,.82);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:74px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.05rem;line-height:1.15;max-width:300px}
.logo-mark{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.1rem;box-shadow:var(--glow);
}
.logo span{background:linear-gradient(90deg,#fff,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 14px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--muted);transition:.22s;display:inline-block}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(56,189,248,.12)}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:12px;font-weight:700;font-size:.92rem;
  border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap;
}
.btn-ghost{color:var(--cyan);border-color:var(--line-strong);background:rgba(56,189,248,.06)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  box-shadow:0 0 20px rgba(56,189,248,.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.65)}
.btn-gold{
  color:#111827;
  background:linear-gradient(135deg,#FACC15,#F59E0B);
  box-shadow:0 0 22px rgba(250,204,21,.35);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(250,204,21,.6)}
.btn:focus-visible,.nav-links a:focus-visible,.mobile-toggle:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:10px}
.mobile-toggle{display:none;background:transparent;border:1px solid var(--line-strong);color:var(--cyan);width:44px;height:44px;border-radius:12px;font-size:1.1rem;cursor:pointer}

/* ===== ARTICLE HEAD ===== */
.article-head{
  position:relative;
  padding:132px 0 54px;
  background:
    radial-gradient(circle at 80% 8%,rgba(37,99,235,.24),transparent 46%),
    radial-gradient(circle at 6% 88%,rgba(56,189,248,.14),transparent 48%),
    linear-gradient(160deg,#030712,#081229 62%,#030712);
  overflow:hidden;
}
.article-head::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/f9b0bee12a8e29ef.jpg');
  background-size:cover;background-position:center;
  opacity:.16;filter:saturate(.8);
}
.article-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 92%);
}
.article-head .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.82rem;color:var(--muted);margin-bottom:20px}
.crumbs a{color:var(--cyan);font-weight:600}
.crumbs a:hover{text-decoration:underline}
.crumbs i{font-size:.6rem;opacity:.6}
.article-head h1{
  font-size:clamp(1.75rem,4.1vw,3.05rem);
  font-weight:900;line-height:1.2;letter-spacing:-.01em;
  max-width:940px;margin-bottom:20px;
}
.article-head h1 span{background:linear-gradient(90deg,var(--cyan),var(--holo));-webkit-background-clip:text;background-clip:text;color:transparent}
.article-lead{color:var(--muted);font-size:1.04rem;max-width:780px;margin-bottom:26px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:.85rem;color:var(--muted)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--cyan)}

/* ===== ARTICLE LAYOUT ===== */
.article-wrap{padding:64px 0 84px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:start}
.article-main{min-width:0;max-width:760px}
.feature-shot{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:var(--shadow);margin-bottom:34px;position:relative;
}
.feature-shot img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.feature-shot figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:.82rem;color:#E2E8F0;
  background:linear-gradient(0deg,rgba(3,7,18,.94),rgba(3,7,18,0));
}

.article-content{font-size:1.02rem;color:#DDE6F2;line-height:1.72}
.article-content > * + *{margin-top:20px}
.article-content h2{
  font-size:clamp(1.35rem,2.4vw,1.85rem);font-weight:800;line-height:1.3;color:#fff;
  margin-top:44px;padding-left:16px;border-left:4px solid var(--cyan);border-radius:2px;
}
.article-content h3{font-size:1.16rem;font-weight:700;color:#fff;margin-top:32px}
.article-content p{color:#C7D4E4}
.article-content strong{color:#fff;font-weight:700}
.article-content a{color:var(--cyan);font-weight:600;border-bottom:1px dashed rgba(56,189,248,.5)}
.article-content a:hover{color:#fff;border-bottom-color:#fff}
.article-content ul,.article-content ol{margin-left:0;padding-left:0;display:flex;flex-direction:column;gap:12px}
.article-content ul li{position:relative;padding-left:30px;color:#C7D4E4}
.article-content ul li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:3px;color:var(--cyan);font-size:.8rem;
}
.article-content ol{counter-reset:item;list-style:none}
.article-content ol li{position:relative;padding-left:38px;color:#C7D4E4;counter-increment:item}
.article-content ol li::before{
  content:counter(item);position:absolute;left:0;top:1px;
  width:24px;height:24px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  background:rgba(56,189,248,.14);border:1px solid var(--line-strong);color:var(--cyan);
  font-size:.75rem;font-weight:800;
}
.article-content blockquote{
  border-left:3px solid var(--cyan);background:rgba(17,29,53,.7);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:20px 24px;color:#E2E8F0;font-style:italic;
}
.article-content img{border-radius:var(--radius-sm);border:1px solid var(--line);margin-top:8px}
.article-content table{width:100%;border-collapse:collapse;font-size:.92rem;display:block;overflow-x:auto}
.article-content th,.article-content td{border:1px solid var(--line);padding:11px 14px;text-align:left;color:#C7D4E4}
.article-content th{background:rgba(56,189,248,.1);color:#fff;font-weight:700}
.article-content hr{border:none;height:1px;background:var(--line);margin:36px 0}

.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius);
  background:rgba(14,23,41,.7);padding:44px 32px;text-align:center;
}
.empty-state i{font-size:2rem;color:var(--cyan);margin-bottom:16px;display:block}
.empty-state h2{font-size:1.4rem;font-weight:800;margin-bottom:12px}
.empty-state p{color:var(--muted);margin-bottom:24px}

/* ===== SIDEBAR ===== */
.sidebar{display:flex;flex-direction:column;gap:22px;position:sticky;top:98px}
.side-card{
  background:linear-gradient(180deg,rgba(17,29,53,.92),rgba(8,18,41,.9));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;
}
.side-card h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.09em;color:var(--cyan);font-weight:800;margin-bottom:16px}
.toc-list{display:flex;flex-direction:column;gap:4px}
.toc-list a{display:block;padding:9px 12px;border-radius:10px;font-size:.9rem;color:var(--muted);font-weight:600;transition:.2s;border-left:2px solid transparent}
.toc-list a:hover{color:#fff;background:rgba(56,189,248,.1);border-left-color:var(--cyan)}
.side-stats{display:flex;flex-direction:column;gap:14px}
.side-stat{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:13px;border-bottom:1px dashed var(--line)}
.side-stat:last-child{border-bottom:none;padding-bottom:0}
.side-stat span{color:var(--muted);font-size:.87rem}
.side-stat strong{color:#fff;font-size:.95rem;font-weight:800}
.side-stat strong em{color:var(--cyan);font-style:normal}
.chain-pill{
  display:flex;align-items:center;gap:10px;padding:11px 13px;border-radius:12px;
  background:rgba(56,189,248,.07);border:1px solid var(--line);font-size:.87rem;font-weight:600;color:#E2E8F0;
}
.chain-pill i{color:var(--cyan);width:18px;text-align:center}
.side-card .btn{width:100%;margin-top:18px}

/* ===== HIGHLIGHT BENTO ===== */
.bento{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:20px}
.bento-item{
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  background:linear-gradient(180deg,rgba(17,29,53,.92),rgba(8,18,41,.88));
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.bento-item:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.bento-item.wide{grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;gap:18px}
.bento-item i.ico{font-size:1.35rem;color:var(--cyan);margin-bottom:14px;display:block}
.bento-item h3{font-size:1.05rem;font-weight:700;margin-bottom:9px}
.bento-item p{color:var(--muted);font-size:.93rem}
.bento-num{font-size:2.2rem;font-weight:900;line-height:1;background:linear-gradient(135deg,#fff,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== STEPS ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step{
  position:relative;padding:30px 26px 26px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(17,29,53,.9),rgba(8,18,41,.86));
  border:1px solid var(--line);transition:.28s;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-5px);box-shadow:var(--shadow)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-size:2.4rem;font-weight:900;color:rgba(56,189,248,.22);line-height:1;display:block;margin-bottom:12px;
}
.step h3{font-size:1.05rem;font-weight:700;margin-bottom:10px}
.step p{color:var(--muted);font-size:.93rem}

/* ===== TABLE BLOCK ===== */
.table-shell{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:rgba(8,18,41,.7)}
.table-shell .table-scroll{overflow-x:auto}
table.net-table{width:100%;border-collapse:collapse;min-width:640px}
table.net-table th,table.net-table td{padding:16px 20px;text-align:left;font-size:.93rem;border-bottom:1px solid var(--line)}
table.net-table th{background:rgba(56,189,248,.09);color:#fff;font-weight:800;font-size:.84rem;text-transform:uppercase;letter-spacing:.05em}
table.net-table td{color:#C7D4E4}
table.net-table td:first-child{color:#fff;font-weight:700}
table.net-table tr:last-child td{border-bottom:none}
table.net-table tbody tr{transition:background .2s}
table.net-table tbody tr:hover{background:rgba(56,189,248,.06)}
.tick{color:#4ADE80;font-weight:700}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(14,23,41,.72);overflow:hidden;transition:border-color .25s}
.faq-item:hover{border-color:var(--line-strong)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 22px;background:transparent;border:none;color:#fff;
  font-size:1rem;font-weight:700;text-align:left;cursor:pointer;line-height:1.5;
}
.faq-q i{color:var(--cyan);transition:transform .3s;flex-shrink:0}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 20px;color:var(--muted);font-size:.95rem}
.faq-item.open .faq-a{max-height:340px}

/* ===== CATEGORY ENTRY ===== */
.cat-card{
  display:flex;flex-direction:column;justify-content:space-between;gap:18px;
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  background:linear-gradient(180deg,rgba(17,29,53,.92),rgba(8,18,41,.88));
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.cat-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}
.cat-card h3{font-size:1.08rem;font-weight:800;margin-bottom:10px}
.cat-card p{color:var(--muted);font-size:.93rem;margin-bottom:18px}
.cat-more{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-weight:700;font-size:.9rem}
.cat-more i{transition:transform .25s}
.cat-card:hover .cat-more i{transform:translateX(4px)}

/* ===== CTA BAND ===== */
.cta-band{
  border:1px solid var(--line-strong);border-radius:24px;padding:46px;
  background:
    radial-gradient(circle at 88% 10%,rgba(56,189,248,.22),transparent 52%),
    linear-gradient(135deg,rgba(17,29,53,.96),rgba(8,18,41,.94));
  box-shadow:var(--shadow);
  display:grid;grid-template-columns:1.25fr .75fr;gap:34px;align-items:center;
}
.cta-band h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:900;line-height:1.25;margin-bottom:14px}
.cta-band p{color:var(--muted);font-size:1rem;margin-bottom:24px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-panel{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:rgba(3,7,18,.6)}
.cta-panel ul{display:flex;flex-direction:column;gap:12px}
.cta-panel li{display:flex;gap:10px;font-size:.92rem;color:#DDE6F2}
.cta-panel li i{color:#4ADE80;margin-top:4px}

/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.85),rgba(7,7,13,.85)),linear-gradient(135deg,#38BDF8,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--cyan);font-size:1.25rem;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;transition:opacity .25s,transform .25s,box-shadow .25s;
  animation:fabPulse 2.8s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 30px rgba(56,189,248,.75)}
.fab:active{transform:scale(.94)}
.fab .fab-dot{
  position:absolute;top:2px;right:2px;width:12px;height:12px;border-radius:999px;
  background:#EF4444;box-shadow:0 0 0 2px #030712;animation:dotBlink 1.6s infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 16px rgba(6,182,212,.35)}50%{box-shadow:0 0 30px rgba(6,182,212,.7)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.35}}

/* ===== FOOTER ===== */
.footer{background:linear-gradient(180deg,var(--bg-2),#020509);border-top:1px solid var(--line);padding:66px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;margin-bottom:44px}
.footer .logo{font-size:1rem}
.footer p{color:var(--muted);font-size:.92rem;margin-top:6px;max-width:340px}
.footer h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.09em;color:#fff;font-weight:800;margin-bottom:18px}
.footer ul{display:flex;flex-direction:column;gap:11px}
.footer ul li,.footer ul a{color:var(--muted);font-size:.92rem;transition:.22s}
.footer ul a:hover{color:var(--cyan);padding-left:4px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.trust-row span{
  display:inline-flex;align-items:center;gap:7px;font-size:.79rem;font-weight:700;
  padding:6px 12px;border-radius:999px;background:rgba(56,189,248,.08);
  border:1px solid var(--line);color:var(--cyan);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:.84rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width:1100px){
  .article-layout{grid-template-columns:1fr;gap:40px}
  .sidebar{position:static}
  .article-main{max-width:none}
  .bento{grid-template-columns:1fr 1fr}
  .bento-item.wide{grid-row:auto;grid-column:span 2}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:980px){
  .mobile-toggle{display:flex;align-items:center;justify-content:center}
  .nav-links{
    position:absolute;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(3,7,18,.98);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    padding:14px 4% 22px;display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 16px;font-size:.95rem;width:100%}
  .nav-actions .btn-ghost{display:none}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
}
@media (max-width:760px){
  .section{padding:62px 0}
  .article-head{padding:112px 0 44px}
  .article-wrap{padding:48px 0 64px}
  .bento{grid-template-columns:1fr}
  .bento-item.wide{grid-column:span 1}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .logo{max-width:200px;font-size:.9rem}
  .logo-mark{width:38px;height:38px;font-size:1rem}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:28px}
  .cta-actions .btn{width:100%}
  .fab{left:12px;bottom:84px;width:52px;height:52px;font-size:1.15rem}
}
@media (max-width:520px){
  .article-head h1{font-size:1.6rem}
  .meta-row{font-size:.8rem;gap:8px 14px}
  .card,.bento-item,.side-card,.cat-card{padding:20px}
  .section-title{font-size:1.5rem}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0E1729;
  --panel-2:#111D35;
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --text:#F8FAFC;
  --muted:#94A3B8;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --green:#22C55E;
  --red:#EF4444;
  --gold:#FACC15;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 20px 60px rgba(2,6,23,.55);
  --glow:0 0 25px rgba(56,189,248,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul{list-style:none;padding:0}
h1,h2,h3,h4{line-height:1.22;font-weight:800}
p{line-height:1.65}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container{width:min(1240px,92%);margin:0 auto}
.section{padding:84px 0;position:relative}
.section-alt{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}
.section-title{font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:800;line-height:1.2;margin-bottom:16px}
.section-sub{color:var(--muted);max-width:760px;font-size:1.02rem;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:14px}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--cyan);border-radius:2px}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  background:linear-gradient(180deg,rgba(17,29,53,.92),rgba(8,18,41,.88));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  position:relative;
  overflow:hidden;
  backdrop-filter:blur(10px);
}
.card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}
.card h3{font-size:1.08rem;font-weight:700;margin-bottom:10px;line-height:1.35}
.card p{color:var(--muted);font-size:.94rem}
.card-icon{
  width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:1.15rem;color:#fff;background:linear-gradient(135deg,var(--blue),var(--cyan));
  box-shadow:0 0 18px rgba(56,189,248,.35);margin-bottom:16px;
}
.card-icon.green{background:linear-gradient(135deg,#059669,var(--green));box-shadow:0 0 18px rgba(34,197,94,.32)}
.card-icon.gold{background:linear-gradient(135deg,#F59E0B,var(--gold));box-shadow:0 0 18px rgba(250,204,21,.32);color:#1F2937}
.card-icon.violet{background:linear-gradient(135deg,#7C3AED,#A78BFA);box-shadow:0 0 18px rgba(167,139,250,.32)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;
  font-size:.74rem;font-weight:700;letter-spacing:.02em;
  background:rgba(37,99,235,.18);border:1px solid var(--line-strong);color:var(--cyan);
}
.badge-green{background:rgba(34,197,94,.14);border-color:rgba(34,197,94,.45);color:#4ADE80}
.badge-gold{background:rgba(250,204,21,.14);border-color:rgba(250,204,21,.45);color:var(--gold)}
.badge-red{background:rgba(239,68,68,.15);border-color:rgba(239,68,68,.45);color:#F87171}

.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(3,7,18,.86);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:74px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.02rem;line-height:1.15;max-width:300px}
.logo-mark{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.1rem;box-shadow:var(--glow);
}
.logo span:last-child{background:linear-gradient(90deg,#fff,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none}
.nav-links a{padding:9px 14px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--muted);transition:.22s;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(56,189,248,.12)}
.nav-links a.active{box-shadow:inset 0 -2px 0 var(--cyan)}
.nav-actions{display:flex;align-items:center;gap:10px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:12px;font-weight:700;font-size:.92rem;
  border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap;
}
.btn-ghost{color:var(--cyan);border-color:var(--line-strong);background:rgba(56,189,248,.06)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  box-shadow:0 0 20px rgba(56,189,248,.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.65)}
.btn-gold{
  color:#111827;
  background:linear-gradient(135deg,#FACC15,#F59E0B);
  box-shadow:0 0 22px rgba(250,204,21,.35);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(250,204,21,.6)}
.btn-lg{padding:15px 30px;font-size:1rem;border-radius:14px}

.hero{
  padding:158px 0 84px;position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 50% -10%,rgba(37,99,235,.30),transparent 58%),
    radial-gradient(circle at 88% 78%,rgba(56,189,248,.14),transparent 48%),
    linear-gradient(180deg,rgba(3,7,18,.88),rgba(3,7,18,.95)),
    url('/assets/images/f9b0bee12a8e29ef.jpg') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(56,189,248,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.06) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 92%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 92%);
}
.hero-inner{position:relative;z-index:2;max-width:900px;margin:0 auto;text-align:center}
.hero h1{font-size:clamp(1.95rem,4.4vw,3.4rem);font-weight:900;line-height:1.16;margin:20px 0 20px}
.hero h1 span{background:linear-gradient(90deg,var(--cyan),var(--holo));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{color:var(--muted);font-size:1.05rem;max-width:720px;margin:0 auto 30px}
.hero-search{
  display:flex;align-items:center;gap:10px;max-width:660px;margin:0 auto 22px;
  padding:8px 8px 8px 18px;border-radius:16px;
  background:rgba(14,23,41,.82);border:1px solid var(--line-strong);
  backdrop-filter:blur(14px);box-shadow:var(--shadow);
}
.hero-search i{color:var(--cyan);font-size:1rem}
.hero-search input{
  flex:1;min-width:0;background:transparent;border:0;color:var(--text);font-size:.95rem;padding:12px 4px;
}
.hero-search input::placeholder{color:#64748B}
.hero-search input:focus{outline:none}
.chip-row{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 15px;border-radius:999px;font-size:.83rem;font-weight:600;color:var(--muted);
  border:1px solid var(--line);background:rgba(14,23,41,.7);transition:.24s;
}
.chip:hover{color:#fff;border-color:var(--line-strong);background:rgba(56,189,248,.14);transform:translateY(-2px)}

.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.split-media{border-radius:22px;overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow);position:relative}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.media-caption{
  position:absolute;left:16px;right:16px;bottom:16px;
  padding:12px 16px;border-radius:14px;font-size:.85rem;font-weight:600;
  background:rgba(3,7,18,.78);border:1px solid var(--line);backdrop-filter:blur(10px);
}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.check-list li{display:flex;gap:12px;align-items:flex-start;color:var(--muted);font-size:.96rem}
.check-list i{color:var(--cyan);margin-top:5px;font-size:.9rem}
.check-list strong{color:#fff;font-weight:700}

.panel{
  background:linear-gradient(180deg,rgba(17,29,53,.95),rgba(3,7,18,.92));
  border:1px solid var(--line-strong);border-radius:22px;padding:28px;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.panel::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--cyan),transparent)}
.stat-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line)}
.stat-row:last-child{border-bottom:0;padding-bottom:0}
.stat-row:first-child{padding-top:0}
.stat-label{color:var(--muted);font-size:.9rem}
.stat-value{font-weight:800;font-size:1.25rem;color:var(--cyan);letter-spacing:-.01em}
.stat-value.green{color:#4ADE80}
.stat-value.gold{color:var(--gold)}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;position:relative}
.step{
  position:relative;padding:30px 26px;border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(17,29,53,.9),rgba(8,18,41,.85));
  transition:.28s;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-5px);box-shadow:var(--shadow),var(--glow)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;font-weight:900;font-size:1.05rem;color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--cyan));box-shadow:0 0 18px rgba(56,189,248,.4);
  margin-bottom:16px;
}
.step h3{font-size:1.05rem;margin-bottom:10px}
.step p{color:var(--muted);font-size:.93rem}

.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(14,23,41,.85),rgba(8,18,41,.8));
  box-shadow:var(--shadow);
}
table.rate{width:100%;border-collapse:collapse;min-width:760px}
.rate th,.rate td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:.92rem}
.rate th{font-size:.74rem;text-transform:uppercase;letter-spacing:.07em;color:var(--cyan);background:rgba(56,189,248,.07);font-weight:700}
.rate tbody tr{transition:background .2s}
.rate tbody tr:hover{background:rgba(56,189,248,.06)}
.rate tbody tr:last-child td{border-bottom:0}
.rate td strong{color:#fff;font-weight:700}
.rate .ok{color:#4ADE80;font-weight:700}

.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:linear-gradient(180deg,rgba(17,29,53,.86),rgba(8,18,41,.82));
  overflow:hidden;transition:border-color .25s,box-shadow .25s;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:0 0 24px rgba(56,189,248,.16)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 24px;
  font-weight:700;font-size:1rem;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--cyan);font-size:.8rem;transition:transform .28s;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-answer{padding:0 24px 22px;color:var(--muted);font-size:.95rem}
.faq-empty{display:none;padding:22px;border:1px dashed var(--line-strong);border-radius:var(--radius-sm);color:var(--muted);text-align:center}

.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(17,29,53,.92),rgba(8,18,41,.88));
  transition:transform .28s,border-color .28s,box-shadow .28s;
}
.news-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}
.news-thumb{display:block;position:relative;overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s}
.news-card:hover .news-thumb img{transform:scale(1.06)}
.news-body{display:flex;flex-direction:column;gap:10px;padding:22px}
.news-body h3{font-size:1rem;font-weight:700;line-height:1.4}
.news-body p{color:var(--muted);font-size:.9rem}
.news-body time{font-size:.78rem;color:#64748B;font-weight:600;letter-spacing:.02em}
.news-empty{padding:28px;border:1px dashed var(--line-strong);border-radius:var(--radius);color:var(--muted);text-align:center}

.cta-band{
  position:relative;border-radius:24px;overflow:hidden;
  padding:56px 44px;border:1px solid var(--line-strong);
  background:
    linear-gradient(120deg,rgba(37,99,235,.42),rgba(3,7,18,.92) 62%),
    url('/assets/images/0eec658b4b4e49ab.jpg') center/cover no-repeat;
  box-shadow:var(--shadow);
  display:grid;grid-template-columns:1.35fr .65fr;gap:36px;align-items:center;
}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.3rem);margin-bottom:14px}
.cta-band p{color:#CBD5E1;max-width:640px;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-side{display:flex;flex-direction:column;gap:12px}

.trust-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:18px}
.trust-row span{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--muted);font-weight:600}
.trust-row i{color:var(--cyan)}

.footer{border-top:1px solid var(--line);background:linear-gradient(180deg,var(--bg-2),#020617);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer h4{font-size:.95rem;font-weight:800;margin-bottom:18px;letter-spacing:.02em}
.footer p{color:var(--muted);font-size:.9rem;max-width:340px}
.footer ul{display:flex;flex-direction:column;gap:11px}
.footer ul li{color:var(--muted);font-size:.88rem}
.footer ul a{color:var(--muted);font-size:.88rem;transition:.22s}
.footer ul a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  color:#64748B;font-size:.82rem;
}

.fab{
  position:fixed;left:1rem;bottom:6rem;z-index:50;
  width:58px;height:58px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;color:var(--cyan);
  background:rgba(7,7,13,.8);backdrop-filter:blur(14px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.85),rgba(7,7,13,.85)),linear-gradient(135deg,#A3E635,#06B6D4);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;transition:opacity .25s,transform .25s,box-shadow .25s;
  animation:fabPulse 3.2s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 34px rgba(6,182,212,.75)}
.fab:active{transform:scale(.95)}
.fab .fab-dot{
  position:absolute;top:-3px;right:-3px;width:14px;height:14px;border-radius:50%;
  background:#EC4899;box-shadow:0 0 10px rgba(236,72,153,.9);animation:dotBlink 1.6s infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(6,182,212,.4)}50%{box-shadow:0 0 32px rgba(6,182,212,.7)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.35}}

@media (max-width:1024px){
  .nav{flex-wrap:wrap;height:auto;padding:12px 0 6px;gap:10px}
  .nav-links{
    order:3;width:100%;overflow-x:auto;gap:4px;padding-bottom:8px;
    scrollbar-width:none;-ms-overflow-style:none;
  }
  .nav-links::-webkit-scrollbar{display:none}
  .nav-links li{flex:0 0 auto}
  .hero{padding-top:172px}
  .split{grid-template-columns:1fr;gap:34px}
  .steps{grid-template-columns:1fr;gap:18px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band{grid-template-columns:1fr;padding:44px 30px}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .logo{font-size:.9rem;max-width:180px}
  .logo-mark{width:36px;height:36px;font-size:.95rem}
  .nav-actions{gap:8px}
  .nav-actions .btn{padding:9px 13px;font-size:.8rem;border-radius:10px}
  .hero-search{flex-wrap:wrap;padding:14px;gap:12px}
  .hero-search input{width:100%;padding:6px 2px}
  .hero-search .btn{width:100%}
  .cta-band{padding:34px 22px;border-radius:18px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .hero{padding-top:158px;padding-bottom:60px}
  .logo{font-size:.8rem;max-width:140px}
  .nav-actions .btn-ghost{padding:8px 10px;font-size:.74rem}
  .nav-actions .btn-primary{padding:8px 11px;font-size:.74rem}
  .card{padding:22px}
  .step{padding:24px 20px}
  .fab{width:54px;height:54px;font-size:1.15rem}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0E1729;
  --panel-2:#111D35;
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --text:#F8FAFC;
  --muted:#94A3B8;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --green:#22C55E;
  --red:#EF4444;
  --gold:#FACC15;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 20px 60px rgba(2,6,23,.55);
  --glow:0 0 25px rgba(56,189,248,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.62;margin:0;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0 0 10px}
p{margin:0 0 14px}
ul{margin:0;padding:0}
.container{width:min(1240px,92%);margin:0 auto}
.section{padding:82px 0;position:relative}
.section-alt{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}
.section-title{font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:800;line-height:1.2;margin-bottom:16px}
.section-sub{color:var(--muted);max-width:780px;font-size:1.02rem;margin-bottom:34px;line-height:1.7}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:14px}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--cyan);border-radius:2px}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:linear-gradient(180deg,rgba(17,29,53,.92),rgba(8,18,41,.88));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}
.card h3{font-size:1.1rem;font-weight:700;line-height:1.35}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:0}
.glass{
  background:rgba(14,23,41,.6);border:1px solid var(--line);
  backdrop-filter:blur(14px);border-radius:var(--radius);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:999px;
  font-size:.76rem;font-weight:700;letter-spacing:.02em;
  background:rgba(37,99,235,.18);border:1px solid var(--line-strong);color:var(--cyan);
}
.badge-green{background:rgba(34,197,94,.14);border-color:rgba(34,197,94,.45);color:#4ADE80}
.badge-gold{background:rgba(250,204,21,.14);border-color:rgba(250,204,21,.45);color:var(--gold)}
.badge-red{background:rgba(239,68,68,.15);border-color:rgba(239,68,68,.45);color:#F87171}
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(3,7,18,.82);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:74px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.02rem;line-height:1.15;max-width:320px}
.logo-mark{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.1rem;box-shadow:var(--glow);
}
.logo span{background:linear-gradient(90deg,#fff,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none}
.nav-links a{padding:9px 14px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--muted);transition:.22s}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(56,189,248,.12)}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:12px;font-weight:700;font-size:.92rem;
  border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap;
}
.btn-ghost{color:var(--cyan);border-color:var(--line-strong);background:rgba(56,189,248,.06)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--blue),var(--cyan));box-shadow:0 0 20px rgba(56,189,248,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.65)}
.btn-gold{color:#111827;background:linear-gradient(135deg,#FACC15,#F59E0B);box-shadow:0 0 22px rgba(250,204,21,.35)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(250,204,21,.6)}
.mobile-toggle{display:none;background:transparent;border:1px solid var(--line-strong);color:var(--cyan);width:44px;height:44px;border-radius:12px;font-size:1.1rem;cursor:pointer}
a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.page-hero{padding:140px 0 56px;position:relative;
  background:
    radial-gradient(circle at 84% 10%,rgba(37,99,235,.2),transparent 46%),
    radial-gradient(circle at 6% 84%,rgba(56,189,248,.14),transparent 46%),
    linear-gradient(160deg,#030712,#081229 62%,#030712);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);
  background-size:52px 52px;mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 92%);
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:.83rem;margin-bottom:18px;flex-wrap:wrap}
.crumb a:hover{color:var(--cyan)}
.page-hero h1{font-size:clamp(1.9rem,4.4vw,3.2rem);font-weight:900;line-height:1.16;margin-bottom:18px;max-width:900px}
.page-hero h1 span{background:linear-gradient(90deg,var(--cyan),var(--holo));-webkit-background-clip:text;background-clip:text;color:transparent}
.page-hero p.lead{color:var(--muted);font-size:1.04rem;max-width:760px;margin-bottom:0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:40px}
.stat-box{padding:20px 22px;border-radius:var(--radius-sm);border:1px solid var(--line);background:rgba(14,23,41,.7)}
.stat-box b{display:block;font-size:1.5rem;font-weight:800;color:var(--cyan);line-height:1.2}
.stat-box span{color:var(--muted);font-size:.85rem}
.feature-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.feature-list li{display:flex;gap:11px;color:var(--muted);font-size:.95rem;line-height:1.6}
.feature-list i{color:var(--cyan);margin-top:5px;flex-shrink:0}
.step-item{display:grid;grid-template-columns:64px 1fr;gap:18px;padding:24px 0;border-bottom:1px solid var(--line)}
.step-item:last-child{border-bottom:none}
.step-num{width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.3rem;color:var(--cyan);background:rgba(56,189,248,.1);border:1px solid var(--line-strong)}
.step-item h3{font-size:1.08rem;font-weight:700;margin-bottom:6px}
.step-item p{color:var(--muted);font-size:.95rem;margin-bottom:0}
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.channel-card{display:flex;gap:14px;align-items:flex-start;padding:22px;border-radius:var(--radius-sm);border:1px solid var(--line);background:rgba(14,23,41,.65);transition:.25s}
.channel-card:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.channel-ico{width:46px;height:46px;border-radius:12px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:1.15rem;background:rgba(37,99,235,.2);color:var(--cyan);border:1px solid var(--line-strong)}
.channel-card h3{font-size:1rem;font-weight:700}
.channel-card p{color:var(--muted);font-size:.88rem;margin-bottom:0}
.scene-card{padding:26px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(180deg,rgba(17,29,53,.9),rgba(8,18,41,.85));transition:.28s}
.scene-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.scene-card h3{font-size:1.05rem;font-weight:700}
.scene-card p{color:var(--muted);font-size:.93rem;margin-bottom:0}
.img-frame{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);position:relative}
.img-frame img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.img-frame:hover img{transform:scale(1.05)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{border-radius:var(--radius);border:1px solid var(--line);background:rgba(14,23,41,.7);overflow:hidden;transition:.28s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.news-card .thumb{aspect-ratio:16/9;overflow:hidden}
.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-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:1.02rem;font-weight:700;line-height:1.4;margin:0}
.news-body h3 a:hover{color:var(--cyan)}
.news-body p{color:var(--muted);font-size:.9rem;margin:0;flex:1}
.news-meta{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:.78rem}
.news-link{color:var(--cyan);font-weight:700;font-size:.86rem}
.news-link:hover{text-decoration:underline}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(14,23,41,.6);margin-bottom:14px;overflow:hidden}
.faq-item summary{
  cursor:pointer;padding:18px 22px;font-weight:700;font-size:1rem;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.3rem;color:var(--cyan);font-weight:700;transition:.25s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 22px 20px;color:var(--muted);font-size:.95rem;margin:0}
.cta-band{
  border-radius:24px;padding:52px 44px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(37,99,235,.28),rgba(56,189,248,.14)),linear-gradient(180deg,rgba(14,23,41,.95),rgba(3,7,18,.95));
  border:1px solid var(--line-strong);
}
.cta-band h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:800;max-width:720px}
.cta-band p{color:var(--muted);max-width:680px}
.footer{border-top:1px solid var(--line);background:linear-gradient(180deg,var(--bg) 0%,#020610 100%);padding:60px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer h4{font-size:.95rem;font-weight:700;margin-bottom:16px;color:#fff}
.footer p{color:var(--muted);font-size:.9rem}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer ul li{color:var(--muted);font-size:.9rem}
.footer ul a:hover{color:var(--cyan)}
.trust-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:16px}
.trust-row span{display:inline-flex;align-items:center;gap:7px;color:var(--muted);font-size:.82rem}
.trust-row i{color:var(--cyan)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:40px;padding-top:22px;color:var(--muted);font-size:.82rem}
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;width:56px;height:56px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;font-size:1.25rem;color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  border:2px solid rgba(56,189,248,.6);box-shadow:0 0 24px rgba(56,189,248,.45);
  transition:.28s;opacity:.85;
}
.fab:hover{transform:scale(1.1);opacity:1;box-shadow:0 0 38px rgba(56,189,248,.75)}
.fab:active{transform:scale(.94)}
.fab::after{
  content:"";position:absolute;top:4px;right:4px;width:12px;height:12px;border-radius:999px;
  background:var(--red);border:2px solid #fff;
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:30px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .nav-links{
    position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);padding:14px;gap:4px;
    display:none;
  }
  .nav-links.open{display:flex}
  .mobile-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-actions .btn-ghost{display:none}
  .grid-3{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .section{padding:60px 0}
  .grid-2{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .step-item{grid-template-columns:48px 1fr;gap:14px}
  .step-num{width:48px;height:48px;font-size:1rem}
  .cta-band{padding:36px 24px}
  .logo{font-size:.94rem;max-width:210px}
}
@media (max-width:520px){
  .grid-4{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .page-hero{padding:120px 0 44px}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --panel:#0E1729;
  --panel-2:#111D35;
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --text:#F8FAFC;
  --muted:#94A3B8;
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --green:#22C55E;
  --red:#EF4444;
  --gold:#FACC15;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 20px 60px rgba(2,6,23,.55);
  --glow:0 0 25px rgba(56,189,248,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.62;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font-family:inherit}
ul{margin:0;padding:0}
.container{width:min(1240px,92%);margin:0 auto}
.section{padding:84px 0;position:relative}
.section-alt{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}
.section-title{font-size:clamp(1.7rem,3.4vw,2.7rem);font-weight:800;line-height:1.2;margin:0 0 16px}
.section-sub{color:var(--muted);max-width:780px;font-size:1.02rem;margin:0 0 36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:14px}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--cyan);border-radius:2px}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:linear-gradient(180deg,rgba(17,29,53,.92),rgba(8,18,41,.88));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  position:relative;
  overflow:hidden;
}
.card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}
.card h3{font-size:1.1rem;font-weight:700;margin:0 0 10px;line-height:1.35}
.card p{color:var(--muted);font-size:.95rem;margin:0}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:999px;font-size:.76rem;font-weight:700;letter-spacing:.02em;background:rgba(37,99,235,.18);border:1px solid var(--line-strong);color:var(--cyan)}
.badge-green{background:rgba(34,197,94,.14);border-color:rgba(34,197,94,.45);color:#4ADE80}
.badge-gold{background:rgba(250,204,21,.14);border-color:rgba(250,204,21,.45);color:var(--gold)}
.badge-red{background:rgba(239,68,68,.15);border-color:rgba(239,68,68,.45);color:#F87171}
.header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(3,7,18,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:74px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.05rem;line-height:1.15;max-width:320px}
.logo-mark{width:42px;height:42px;border-radius:12px;flex-shrink:0;background:linear-gradient(135deg,var(--blue),var(--cyan));display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;box-shadow:var(--glow)}
.logo span{background:linear-gradient(90deg,#fff,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none}
.nav-links a{padding:9px 14px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--muted);transition:.22s}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(56,189,248,.12)}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 22px;border-radius:12px;font-weight:700;font-size:.92rem;border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap}
.btn-ghost{color:var(--cyan);border-color:var(--line-strong);background:rgba(56,189,248,.06)}
.btn-ghost:hover{background:rgba(56,189,248,.16);transform:translateY(-2px)}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--blue),var(--cyan));box-shadow:0 0 20px rgba(56,189,248,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.65)}
.btn-gold{color:#111827;background:linear-gradient(135deg,#FACC15,#F59E0B);box-shadow:0 0 22px rgba(250,204,21,.35)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(250,204,21,.6)}
.mobile-toggle{display:none;background:transparent;border:1px solid var(--line-strong);color:var(--cyan);width:44px;height:44px;border-radius:12px;font-size:1.1rem;cursor:pointer}
a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.cat-hero{
  padding:150px 0 70px;position:relative;
  background:
    radial-gradient(circle at 85% 15%,rgba(37,99,235,.24),transparent 46%),
    radial-gradient(circle at 6% 82%,rgba(56,189,248,.14),transparent 44%),
    linear-gradient(160deg,#030712,#081229 58%,#030712);
}
.cat-hero::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);background-size:52px 52px;mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 92%)}
.cat-hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center}
.cat-hero h1{font-size:clamp(1.9rem,4.6vw,3.4rem);font-weight:900;line-height:1.14;margin:0 0 20px}
.cat-hero h1 span{background:linear-gradient(90deg,var(--cyan),var(--holo));-webkit-background-clip:text;background-clip:text;color:transparent}
.cat-hero .lead{color:var(--muted);font-size:1.05rem;max-width:660px;margin:0 0 28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:6px}
.stat-cell{background:rgba(17,29,53,.6);border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px}
.stat-cell strong{display:block;font-size:1.35rem;font-weight:800;color:var(--cyan)}
.stat-cell span{font-size:.8rem;color:var(--muted)}
.hero-panel{background:linear-gradient(180deg,rgba(17,29,53,.95),rgba(3,7,18,.9));border:1px solid var(--line-strong);border-radius:22px;padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero-panel::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--cyan),transparent)}
.hero-panel img{border-radius:14px;margin-bottom:20px;border:1px solid var(--line)}
.chain-row{display:flex;flex-direction:column;gap:14px}
.chain-row .item{display:flex;align-items:center;gap:12px;background:rgba(8,18,41,.7);border:1px solid var(--line);border-radius:var(--radius-sm);padding:13px 16px}
.chain-row .item i{color:var(--cyan);font-size:1.05rem;width:22px;text-align:center}
.chain-row .item div strong{display:block;font-size:.95rem}
.chain-row .item div span{font-size:.8rem;color:var(--muted)}
.step-list{counter-reset:step;display:flex;flex-direction:column;gap:18px}
.step-item{display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:start}
.step-item::before{counter-increment:step;content:counter(step,decimal-leading-zero);display:flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--blue),var(--cyan));font-weight:800;color:#fff;box-shadow:var(--glow)}
.step-item h3{margin:2px 0 8px;font-size:1.08rem}
.step-item p{margin:0;color:var(--muted);font-size:.95rem}
.faq-wrap{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{background:linear-gradient(180deg,rgba(17,29,53,.85),rgba(8,18,41,.8));border:1px solid var(--line);border-radius:var(--radius-sm);padding:20px 24px;transition:.25s}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item h3{margin:0 0 8px;font-size:1rem;display:flex;gap:10px;align-items:flex-start}
.faq-item h3 i{color:var(--cyan);margin-top:4px}
.faq-item p{margin:0;color:var(--muted);font-size:.93rem}
.cta-band{
  border-radius:var(--radius);padding:44px;
  background:linear-gradient(120deg,rgba(37,99,235,.22),rgba(56,189,248,.12));
  border:1px solid var(--line-strong);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:var(--shadow);
}
.cta-band h3{margin:0 0 8px;font-size:clamp(1.3rem,2.6vw,1.9rem);font-weight:800}
.cta-band p{margin:0;color:var(--muted);max-width:640px}
.entry-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:linear-gradient(180deg,rgba(17,29,53,.92),rgba(8,18,41,.88));border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.28s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}
.news-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{margin:0;font-size:1.02rem;line-height:1.4}
.news-body h3 a:hover{color:var(--cyan)}
.news-body p{margin:0;color:var(--muted);font-size:.9rem;flex:1}
.news-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:.78rem;color:var(--muted)}
.news-meta i{color:var(--cyan);margin-right:4px}
.proof-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center}
.proof-grid img{border-radius:var(--radius);border:1px solid var(--line);width:100%}
.tick-list{list-style:none;display:flex;flex-direction:column;gap:14px;margin-top:20px}
.tick-list li{display:flex;gap:12px;color:var(--muted);font-size:.96rem}
.tick-list i{color:var(--green);margin-top:4px}
.fab{
  position:fixed;left:1rem;bottom:6rem;z-index:50;
  width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#0E1729,#111D35);
  border:2px solid var(--cyan);
  color:var(--cyan);font-size:1.35rem;
  box-shadow:0 0 24px rgba(56,189,248,.5);
  transition:.28s;animation:fabFloat 3.2s ease-in-out infinite;
}
.fab:hover{transform:scale(1.1);opacity:1;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff}
.fab:active{transform:scale(.94) translateY(3px)}
.fab::after{content:"";position:absolute;top:2px;right:2px;width:12px;height:12px;background:var(--red);border-radius:50%;border:2px solid var(--bg)}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
.footer{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-top:1px solid var(--line);padding:64px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;padding-bottom:34px;border-bottom:1px solid var(--line)}
.footer h4{font-size:.95rem;font-weight:700;margin:0 0 16px;color:#fff}
.footer p{color:var(--muted);font-size:.9rem;margin:0 0 14px}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer ul li{color:var(--muted);font-size:.88rem}
.footer ul a{color:var(--muted);font-size:.88rem;transition:.22s}
.footer ul a:hover{color:var(--cyan)}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.trust-row span{display:inline-flex;align-items:center;gap:7px;font-size:.78rem;color:var(--muted);background:rgba(56,189,248,.07);border:1px solid var(--line);border-radius:999px;padding:6px 12px}
.trust-row i{color:var(--cyan)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:22px;color:var(--muted);font-size:.82rem}
@media(max-width:1024px){
  .cat-hero-grid{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .entry-list,.news-grid{grid-template-columns:repeat(2,1fr)}
  .proof-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-links{display:none}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:74px;left:0;right:0;background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);padding:16px 4%}
  .mobile-toggle{display:flex;align-items:center;justify-content:center}
  .nav-actions .btn-ghost{display:none}
  .section{padding:64px 0}
  .cat-hero{padding:120px 0 56px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .entry-list,.news-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .cta-band{padding:30px;flex-direction:column;align-items:flex-start}
  .step-item{grid-template-columns:46px 1fr;gap:14px}
  .step-item::before{width:46px;height:46px;border-radius:13px}
  .logo{font-size:.95rem;max-width:210px}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .hero-cta .btn{width:100%}
  .cat-hero h1{font-size:1.7rem}
}