/* roulang page: index */
:root{
  --bg:#030712;
  --bg-deep:#081229;
  --panel:rgba(12,22,46,.66);
  --panel-solid:#0b1730;
  --stroke:rgba(56,189,248,.18);
  --stroke-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow-lg:0 26px 60px rgba(2,6,23,.66);
  --shadow:0 14px 34px rgba(2,6,23,.5);
  --glow:0 0 22px rgba(56,189,248,.38);
  --glow-strong:0 0 34px rgba(37,99,235,.55);
  --wrap:1200px;
  --sec-pad:clamp(54px,7vw,100px);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:'';
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(37,99,235,.30), transparent 62%),
    radial-gradient(780px 460px at 92% 4%, rgba(56,189,248,.18), transparent 60%),
    linear-gradient(180deg,#030712 0%,#081229 50%,#030712 100%);
}
body::after{
  content:'';
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(96,165,250,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,165,250,.055) 1px,transparent 1px);
  background-size:58px 58px;
  opacity:.7;
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease;}
a:hover{color:#7dd3fc;}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.28;font-weight:800;letter-spacing:-.01em;}
p{margin:0 0 1rem;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

.wrap{width:min(var(--wrap),100% - 34px);margin-inline:auto;}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  background:linear-gradient(180deg,rgba(3,7,18,.94),rgba(3,7,18,.74));
  border-bottom:1px solid var(--stroke);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:70px;position:relative;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),var(--cyan));
  color:#04101f;font-size:17px;
  box-shadow:var(--glow);
}
.brand-text{
  font-size:15.5px;font-weight:700;line-height:1.2;
  max-width:230px;
}
.brand-text b{color:var(--cyan);}
.main-nav{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;flex-wrap:wrap;
}
.main-nav .nav-link{
  color:var(--muted);font-size:14.5px;font-weight:600;
  padding:9px 13px;border-radius:10px;white-space:nowrap;
  border:1px solid transparent;
}
.main-nav .nav-link:hover{color:var(--text);background:rgba(56,189,248,.09);}
.main-nav .nav-link.active{
  color:var(--text);
  background:rgba(56,189,248,.13);
  border-color:var(--stroke-strong);
  box-shadow:inset 0 0 18px rgba(56,189,248,.12);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-ghost{
  font-size:14px;font-weight:600;color:var(--cyan);
  padding:9px 16px;border-radius:11px;
  border:1px solid var(--stroke-strong);
  background:rgba(56,189,248,.06);
}
.btn-ghost:hover{background:rgba(56,189,248,.16);color:#e0f2fe;box-shadow:var(--glow);}
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:#03121f;
  padding:10px 20px;border-radius:11px;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:0 0 20px rgba(56,189,248,.45);
  border:none;transition:transform .2s ease,box-shadow .25s ease;
}
.btn-glow:hover{color:#03121f;transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.7);}
.btn-glow:active{transform:translateY(0) scale(.98);}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.08);
  border:1px solid var(--stroke);
  color:var(--text);font-size:17px;
}

/* ---------- BUTTONS ---------- */
.btn-outline{
  display:inline-flex;align-items:center;gap:9px;
  font-size:15px;font-weight:600;color:var(--text);
  padding:12px 24px;border-radius:12px;
  border:1px solid var(--stroke-strong);
  background:rgba(10,20,42,.6);
}
.btn-outline:hover{color:var(--text);background:rgba(56,189,248,.14);box-shadow:var(--glow);}
.btn-lg{padding:14px 28px;font-size:15.5px;}

.tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid var(--stroke-strong);
  padding:6px 13px;border-radius:999px;margin-bottom:16px;
}

/* ---------- HERO ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--stroke);}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.34;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(3,7,18,.96) 0%,rgba(3,7,18,.82) 46%,rgba(8,18,41,.72) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:clamp(28px,4vw,56px);
  padding:clamp(44px,6vw,84px) 0 clamp(34px,4vw,54px);
  align-items:center;
}
.hero-copy{text-align:left;}
.hero h1{
  font-size:clamp(1.72rem,3.5vw,2.85rem);
  font-weight:800;margin-bottom:18px;
  background:linear-gradient(100deg,#ffffff 30%,#93c5fd 78%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
  color:#cbd5e1;font-size:clamp(.96rem,1.1vw,1.06rem);
  max-width:640px;margin-bottom:22px;
}
.hero-points{display:grid;gap:11px;margin-bottom:26px;max-width:620px;}
.hero-points li{
  display:flex;align-items:flex-start;gap:11px;
  font-size:14.8px;color:#dbeafe;
}
.hero-points i{color:var(--cyan);margin-top:4px;font-size:13px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:24px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;}
.trust-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.4px;font-weight:600;color:#a5f3fc;
  background:rgba(8,47,73,.55);
  border:1px solid rgba(56,189,248,.28);
  padding:6px 12px;border-radius:999px;
}
.hero-visual{position:relative;}
.hero-shot{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--stroke-strong);
  box-shadow:var(--shadow-lg),0 0 40px rgba(37,99,235,.28);
}
.hero-shot img{width:100%;height:auto;object-fit:cover;}
.hero-badge{
  position:absolute;left:-14px;bottom:22px;
  background:rgba(6,14,30,.92);
  border:1px solid var(--stroke-strong);
  border-radius:14px;padding:12px 18px;
  box-shadow:var(--glow);
  backdrop-filter:blur(10px);
}
.hero-badge strong{display:block;font-size:19px;color:var(--cyan);line-height:1.1;}
.hero-badge span{font-size:12px;color:var(--muted);}
.hero-badge.two{left:auto;right:-10px;bottom:auto;top:-18px;}

/* ---------- STAT STRIP ---------- */
.stat-strip{border-bottom:1px solid var(--stroke);background:rgba(6,14,30,.55);}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--stroke);
}
.stat{
  background:rgba(4,10,24,.92);
  padding:26px 22px;text-align:left;
}
.stat strong{
  display:block;font-size:clamp(1.35rem,2.2vw,1.75rem);
  color:var(--cyan);font-weight:800;margin-bottom:5px;
}
.stat span{font-size:13.4px;color:var(--muted);line-height:1.5;}

/* ---------- SECTIONS ---------- */
.section{padding:var(--sec-pad) 0;}
.section.alt{background:linear-gradient(180deg,rgba(8,18,41,.5),rgba(3,7,18,.2));border-block:1px solid var(--stroke);}
.section-head{max-width:790px;margin-bottom:clamp(28px,3.5vw,46px);}
.section-head.center{margin-inline:auto;text-align:center;}
.section h2{font-size:clamp(1.4rem,2.4vw,2.05rem);}
.section-lead{color:var(--muted);font-size:15.4px;margin-bottom:0;}

/* ---------- SPLIT (asymmetric) ---------- */
.split{
  display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  gap:clamp(26px,4vw,58px);align-items:start;
}
.split.rev{grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);}
.reason-list{display:grid;gap:0;}
.reason{
  display:grid;grid-template-columns:44px 1fr;gap:16px;
  padding:20px 0;border-top:1px solid var(--stroke);
}
.reason:last-child{border-bottom:1px solid var(--stroke);}
.reason-ico{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(37,99,235,.16);
  border:1px solid var(--stroke-strong);
  color:var(--cyan);font-size:16px;
}
.reason h3{font-size:1.02rem;margin-bottom:6px;}
.reason p{color:var(--muted);font-size:14.4px;margin:0;}

/* ---------- GRIDS & CARDS ---------- */
.grid{display:grid;gap:20px;}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr));}

.card{
  background:var(--panel);
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  padding:24px 22px;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{
  transform:translateY(-5px);
  border-color:var(--stroke-strong);
  box-shadow:0 18px 40px rgba(2,10,30,.6),0 0 24px rgba(56,189,248,.22);
}
.card-ico{
  width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;margin-bottom:15px;
  background:linear-gradient(140deg,rgba(37,99,235,.35),rgba(56,189,248,.18));
  border:1px solid var(--stroke-strong);
  color:#bae6fd;font-size:17px;
}
.card h3{font-size:1.04rem;margin-bottom:8px;}
.card p{color:var(--muted);font-size:14.2px;margin:0;}
.card .mini{
  display:inline-block;margin-top:12px;
  font-size:11.6px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--cyan);
}

/* ---------- SCENARIO LIST ---------- */
.scene-list{display:grid;gap:16px;}
.scene{
  padding:18px 20px 18px 22px;
  border-left:3px solid rgba(56,189,248,.5);
  background:linear-gradient(90deg,rgba(37,99,235,.14),rgba(37,99,235,0));
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
}
.scene h3{font-size:1rem;margin-bottom:6px;}
.scene p{color:var(--muted);font-size:14.2px;margin:0;}

/* ---------- DEMO ---------- */
.demo-box{
  border-radius:var(--radius-lg);
  border:1px solid var(--stroke-strong);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  background:rgba(6,14,30,.7);
}
.demo-box img{width:100%;}
.steps{display:grid;gap:0;counter-reset:step;}
.step{
  display:grid;grid-template-columns:40px 1fr;gap:16px;
  padding:18px 0;border-bottom:1px dashed rgba(56,189,248,.22);
}
.step:first-child{padding-top:0;}
.step:last-child{border-bottom:none;}
.step-num{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  font-size:14px;font-weight:800;color:#04101f;
  background:linear-gradient(140deg,var(--cyan),var(--blue));
  box-shadow:var(--glow);
}
.step h3{font-size:.99rem;margin-bottom:5px;}
.step p{color:var(--muted);font-size:14.2px;margin:0;}

/* ---------- EVIDENCE ---------- */
.evidence-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.evidence{
  border-top:2px solid var(--stroke-strong);
  padding-top:18px;
}
.evidence strong{display:block;font-size:1.6rem;color:var(--cyan);margin-bottom:6px;}
.evidence span{font-size:14px;color:var(--muted);}
.media-row{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;
  padding-top:24px;border-top:1px solid var(--stroke);
}
.media-pill{
  font-size:12.4px;font-weight:600;color:#a5b4fc;
  border:1px solid var(--stroke);
  border-radius:999px;padding:7px 15px;
  background:rgba(8,18,41,.6);
}

/* ---------- GUIDE ---------- */
.guide-list{display:grid;gap:26px;margin-top:10px;}
.guide-item{
  padding-left:22px;border-left:2px solid rgba(56,189,248,.38);
}
.guide-item h3{font-size:1.06rem;line-height:1.5;margin-bottom:10px;color:#e0f2fe;}
.guide-item p{color:var(--muted);font-size:14.6px;margin:0;}
.guide-media{
  margin-top:34px;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--stroke);box-shadow:var(--shadow);
}
.guide-media img{width:100%;}

/* ---------- TIERS ---------- */
.tier{
  background:var(--panel);border:1px solid var(--stroke);
  border-radius:var(--radius);padding:26px 22px;
  backdrop-filter:blur(12px);transition:border-color .3s ease,transform .3s ease;
}
.tier:hover{border-color:var(--stroke-strong);transform:translateY(-4px);}
.tier.hot{
  border-color:rgba(56,189,248,.55);
  box-shadow:0 0 30px rgba(56,189,248,.2);
  background:linear-gradient(180deg,rgba(37,99,235,.2),rgba(12,22,46,.7));
}
.tier-name{font-size:1.05rem;font-weight:800;margin-bottom:4px;}
.tier-sub{font-size:12.6px;color:var(--muted);margin-bottom:16px;}
.tier ul{display:grid;gap:10px;}
.tier li{display:flex;gap:9px;font-size:14px;color:#dbeafe;}
.tier li i{color:var(--cyan);font-size:12px;margin-top:5px;}

/* ---------- TESTIMONIALS ---------- */
.quote{
  background:rgba(6,14,30,.66);
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  padding:24px 22px;
  display:flex;flex-direction:column;gap:14px;
  transition:border-color .28s ease,box-shadow .28s ease;
}
.quote:hover{border-color:var(--stroke-strong);box-shadow:0 0 24px rgba(56,189,248,.16);}
.stars{color:#facc15;font-size:13px;letter-spacing:2px;}
.quote p{font-size:14.4px;color:#e2e8f0;margin:0;}
.quote-by{display:flex;align-items:center;gap:11px;margin-top:auto;}
.avatar{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;font-weight:800;font-size:14px;
  background:linear-gradient(140deg,var(--blue),var(--cyan));color:#04101f;
}
.quote-by span{font-size:12.8px;color:var(--muted);}

/* ---------- CHANNEL WALL ---------- */
.channel{
  display:block;color:var(--text);
  background:linear-gradient(160deg,rgba(37,99,235,.2),rgba(8,18,41,.72));
  border:1px solid var(--stroke);
  border-radius:var(--radius);padding:24px 22px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.channel:hover{
  color:var(--text);transform:translateY(-5px);
  border-color:var(--stroke-strong);
  box-shadow:0 18px 40px rgba(2,10,30,.6),0 0 24px rgba(56,189,248,.22);
}
.channel i{font-size:20px;color:var(--cyan);margin-bottom:12px;display:block;}
.channel h3{font-size:1.04rem;margin-bottom:7px;}
.channel p{font-size:14px;color:var(--muted);margin:0;}

/* ---------- NEWS ---------- */
.news-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:26px;align-items:start;}
.news-list{display:grid;gap:14px;}
.news-item{
  display:block;color:var(--text);
  background:rgba(6,14,30,.6);
  border:1px solid var(--stroke);
  border-radius:var(--radius-sm);
  padding:19px 20px;
  transition:border-color .26s ease,background .26s ease,transform .26s ease;
}
.news-item:hover{
  color:var(--text);border-color:var(--stroke-strong);
  background:rgba(12,26,54,.82);transform:translateX(4px);
}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px;}
.news-cat{
  font-size:11.4px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  color:var(--cyan);
}
.news-meta time{font-size:12px;color:var(--dim);}
.news-item h3{font-size:1rem;margin-bottom:7px;}
.news-item p{font-size:13.8px;color:var(--muted);margin:0;}
.news-side{
  background:rgba(6,14,30,.66);
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  padding:22px 20px;
}
.side-title{font-size:.98rem;margin-bottom:14px;color:#bae6fd;}
.side-item{
  display:block;padding:13px 0;border-bottom:1px dashed rgba(56,189,248,.2);
}
.side-item:last-child{border-bottom:none;padding-bottom:0;}
.side-item strong{display:block;font-size:14px;color:#e2e8f0;font-weight:600;line-height:1.5;margin-bottom:5px;}
.side-item:hover strong{color:var(--cyan);}
.side-item span{font-size:12px;color:var(--dim);}
.empty-note{font-size:14px;color:var(--muted);margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-item{
  border:1px solid var(--stroke);
  border-radius:var(--radius-sm);
  background:rgba(6,14,30,.6);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .26s ease;
}
.faq-item:hover{border-color:var(--stroke-strong);}
.faq-item summary{
  cursor:pointer;list-style:none;
  padding:18px 22px;
  font-size:15px;font-weight:600;color:#e2e8f0;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:'\f067';font-family:'Font Awesome 6 Free';font-weight:900;
  font-size:12px;color:var(--cyan);flex:0 0 auto;
}
.faq-item[open] summary::after{content:'\f068';}
.faq-item p{padding:0 22px 20px;margin:0;font-size:14.4px;color:var(--muted);}

/* ---------- FINAL CTA ---------- */
.final-cta{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--stroke-strong);
  background:linear-gradient(130deg,rgba(37,99,235,.34),rgba(8,18,41,.9) 62%);
  padding:clamp(30px,4.4vw,54px);
  box-shadow:var(--shadow-lg);
  text-align:center;
}
.final-cta h2{font-size:clamp(1.35rem,2.3vw,1.95rem);margin-bottom:14px;}
.final-cta p{color:#cbd5e1;max-width:680px;margin:0 auto 24px;font-size:15px;}
.final-cta .hero-cta{justify-content:center;margin-bottom:0;}

/* ---------- FOOTER ---------- */
.site-footer{
  border-top:1px solid var(--stroke);
  background:linear-gradient(180deg,rgba(3,7,18,.6),rgba(3,7,18,.96));
  padding:clamp(40px,5vw,64px) 0 26px;
  margin-top:20px;
}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr) minmax(0,1fr);
  gap:34px;margin-bottom:34px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;font-size:15px;}
.footer-about{font-size:14px;color:var(--muted);max-width:400px;}
.footer-col h4{
  font-size:12.6px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:16px;font-weight:700;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--cyan);}
.footer-contact li{font-size:14px;color:var(--muted);display:flex;gap:10px;align-items:flex-start;}
.footer-contact i{color:var(--cyan);margin-top:4px;font-size:13px;}
.footer-bottom{
  border-top:1px solid var(--stroke);
  padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--dim);
}
.footer-bottom a{color:var(--cyan);}

/* ---------- FAB ---------- */
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:60;
  width:56px;height:56px;border-radius:999px;
  display:grid;place-items:center;
  background:rgba(7,7,13,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:
    linear-gradient(rgba(7,18,34,.92),rgba(7,18,34,.92)),
    linear-gradient(135deg,#38BDF8,#2563EB);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:var(--cyan);font-size:19px;
  transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;
  opacity:.8;
  animation:fabPulse 2.8s ease-in-out infinite;
}
.fab-support:hover{
  opacity:1;color:#e0f2fe;transform:scale(1.1);
  box-shadow:0 0 34px rgba(56,189,248,.75);
}
.fab-support:active{transform:scale(.94) translateY(3px);}
.fab-dot{
  position:absolute;top:6px;right:7px;
  width:11px;height:11px;border-radius:50%;
  background:#22d3ee;
  box-shadow:0 0 0 3px rgba(3,7,18,.9),0 0 12px rgba(34,211,238,.9);
  animation:dotBlink 1.6s infinite;
}
@keyframes fabPulse{
  0%,100%{box-shadow:0 0 18px rgba(6,182,212,.35);}
  50%{box-shadow:0 0 30px rgba(6,182,212,.7);}
}
@keyframes dotBlink{
  0%,100%{opacity:1;}
  50%{opacity:.25;}
}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero-visual{order:-1;}
  .split,.split.rev{grid-template-columns:1fr;}
  .g-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-about{max-width:none;}
}
@media (max-width:992px){
  .brand-text{max-width:170px;font-size:14px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:rgba(3,7,18,.98);
    border-bottom:1px solid var(--stroke);
    padding:12px 14px 18px;gap:4px;
    display:none;
    box-shadow:0 22px 40px rgba(2,6,23,.7);
  }
  .main-nav.open{display:flex;}
  .main-nav .nav-link{padding:12px 14px;font-size:15px;}
}
@media (max-width:768px){
  .g-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .evidence-grid{grid-template-columns:1fr;}
  .hero-badge{left:10px;bottom:14px;padding:10px 14px;}
  .hero-badge.two{left:auto;right:10px;top:14px;}
  .stat{padding:20px 16px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:560px){
  .g-2,.g-3,.g-4{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;}
  .header-actions{gap:6px;}
  .btn-ghost{padding:8px 12px;font-size:13px;}
  .btn-glow{padding:9px 14px;font-size:13px;}
  .brand-text{max-width:120px;font-size:12.8px;}
  .hero h1{font-size:1.5rem;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn-glow,.hero-cta .btn-outline{justify-content:center;}
  .fab-support{bottom:84px;left:12px;width:52px;height:52px;}
  .step,.reason{grid-template-columns:36px 1fr;gap:13px;}
  .step-num,.reason-ico{width:36px;height:36px;font-size:13px;}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-deep:#081229;
  --panel:rgba(12,22,46,.66);
  --panel-solid:#0b1730;
  --stroke:rgba(56,189,248,.18);
  --stroke-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow-lg:0 26px 60px rgba(2,6,23,.66);
  --shadow:0 14px 34px rgba(2,6,23,.5);
  --glow:0 0 22px rgba(56,189,248,.38);
  --glow-strong:0 0 34px rgba(37,99,235,.55);
  --wrap:1200px;
  --sec-pad:clamp(54px,7vw,100px);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:'';position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(37,99,235,.30), transparent 62%),
    radial-gradient(780px 460px at 92% 4%, rgba(56,189,248,.18), transparent 60%),
    linear-gradient(180deg,#030712 0%,#081229 50%,#030712 100%);
}
body::after{
  content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(96,165,250,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,165,250,.055) 1px,transparent 1px);
  background-size:58px 58px;opacity:.7;
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease;}
a:hover{color:#7dd3fc;}
button{font-family:inherit;}
ul{list-style:none;margin:0;padding:0;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px;}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:1000;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  background:linear-gradient(180deg,rgba(3,7,18,.94),rgba(3,7,18,.74));
  border-bottom:1px solid var(--stroke);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:70px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),var(--cyan));
  color:#04101f;font-size:17px;box-shadow:var(--glow);
}
.brand-text{font-size:15.5px;font-weight:700;line-height:1.2;max-width:230px;}
.brand-text b{color:var(--cyan);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap;}
.main-nav .nav-link{
  color:var(--muted);font-size:14.5px;font-weight:600;
  padding:9px 13px;border-radius:10px;white-space:nowrap;border:1px solid transparent;
}
.main-nav .nav-link:hover{color:var(--text);background:rgba(56,189,248,.09);}
.main-nav .nav-link.active{
  color:var(--text);background:rgba(56,189,248,.13);
  border-color:var(--stroke-strong);box-shadow:inset 0 0 18px rgba(56,189,248,.12);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-ghost{
  font-size:14px;font-weight:600;color:var(--cyan);
  padding:9px 16px;border-radius:11px;border:1px solid var(--stroke-strong);
  background:rgba(56,189,248,.06);
}
.btn-ghost:hover{background:rgba(56,189,248,.16);color:#e0f2fe;box-shadow:var(--glow);}
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:#03121f;
  padding:10px 20px;border-radius:11px;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:0 0 20px rgba(56,189,248,.45);border:none;
  transition:transform .2s ease,box-shadow .25s ease;
}
.btn-glow:hover{color:#03121f;transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.7);}
.btn-glow:active{transform:translateY(0) scale(.98);}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.08);border:1px solid var(--stroke);
  color:var(--text);font-size:17px;
}
/* BUTTONS */
.btn-outline{
  display:inline-flex;align-items:center;gap:9px;
  font-size:15px;font-weight:600;color:var(--text);
  padding:12px 24px;border-radius:12px;
  border:1px solid var(--stroke-strong);background:rgba(10,20,42,.6);
}
.btn-outline:hover{color:var(--text);background:rgba(56,189,248,.14);box-shadow:var(--glow);}
.btn-lg{padding:14px 28px;font-size:15.5px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid var(--stroke-strong);
  padding:6px 13px;border-radius:999px;margin-bottom:16px;
}
/* SECTION BASE */
section{padding:var(--sec-pad) 0;position:relative;}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.55),rgba(3,7,18,.2));border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke);}
.section-head{max-width:820px;margin-bottom:38px;}
.section-head h2{
  font-size:clamp(1.4rem,2.5vw,2.05rem);font-weight:800;margin-bottom:14px;line-height:1.28;
}
.section-head p{color:var(--muted);margin:0;font-size:15.5px;}
.eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--holo);margin-bottom:10px;display:block;
}
/* HERO */
.page-hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--stroke);
  padding:clamp(46px,6vw,86px) 0 clamp(40px,5vw,66px);
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.3;}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(3,7,18,.96) 0%,rgba(3,7,18,.84) 46%,rgba(8,18,41,.74) 100%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(28px,4vw,54px);align-items:center;
}
.hero-copy{text-align:left;}
.hero-copy h1{
  font-size:clamp(1.68rem,3.4vw,2.72rem);font-weight:800;margin-bottom:18px;line-height:1.24;
  background:linear-gradient(100deg,#ffffff 30%,#93c5fd 80%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#cbd5e1;font-size:clamp(.96rem,1.1vw,1.05rem);max-width:620px;margin-bottom:22px;}
.check-list{display:grid;gap:12px;margin-bottom:26px;max-width:600px;}
.check-list li{display:flex;align-items:flex-start;gap:11px;font-size:14.8px;color:#dbeafe;}
.check-list i{color:var(--cyan);margin-top:4px;font-size:13px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.trust-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.4px;font-weight:600;color:#a5f3fc;
  background:rgba(8,47,73,.55);border:1px solid rgba(56,189,248,.28);
  padding:6px 12px;border-radius:999px;
}
.hero-card{
  border-radius:var(--radius-lg);border:1px solid var(--stroke-strong);
  background:var(--panel);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-lg);overflow:hidden;
}
.hero-card-top{padding:18px 20px;border-bottom:1px solid var(--stroke);display:flex;align-items:center;justify-content:space-between;gap:12px;}
.hero-card-top span{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--holo);}
.dot-live{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#7dd3fc;font-weight:600;}
.dot-live::before{content:'';width:8px;height:8px;border-radius:50%;background:#22d3ee;box-shadow:0 0 10px #22d3ee;}
.hero-card-body{padding:20px;}
.hero-stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:18px;}
.hero-stat{
  border:1px solid var(--stroke);border-radius:var(--radius-sm);
  background:rgba(3,7,18,.5);padding:14px 14px;
}
.hero-stat b{display:block;font-size:1.35rem;font-weight:800;color:#e0f2fe;}
.hero-stat span{font-size:12.4px;color:var(--muted);}
.hero-mini-list{display:grid;gap:10px;}
.hero-mini-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:#cbd5e1;}
.hero-mini-list i{color:var(--cyan);}
/* CARD GRID */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.feature-card{
  border:1px solid var(--stroke);border-radius:var(--radius);
  background:var(--panel);backdrop-filter:blur(12px);
  padding:24px;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  height:100%;
}
.feature-card:hover{transform:translateY(-5px);border-color:var(--stroke-strong);box-shadow:var(--shadow),var(--glow);}
.feature-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(37,99,235,.9),rgba(56,189,248,.9));
  color:#04101f;font-size:18px;margin-bottom:16px;
}
.feature-card h3{font-size:1.06rem;font-weight:700;margin-bottom:10px;}
.feature-card p{color:var(--muted);font-size:14.6px;margin:0;}
/* SCENARIO */
.scenario-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:26px;align-items:center;
}
.scenario-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--stroke-strong);box-shadow:var(--shadow);}
.scenario-media img{width:100%;height:100%;object-fit:cover;}
.scenario-body h3{font-size:1.3rem;font-weight:800;margin-bottom:14px;}
.scenario-body p{color:var(--muted);font-size:15px;}
.scenario-list{display:grid;gap:12px;margin-top:18px;}
.scenario-list li{display:flex;gap:11px;align-items:flex-start;font-size:14.8px;color:#dbeafe;}
.scenario-list i{color:var(--cyan);margin-top:4px;}
/* STEPS */
.step-list{display:grid;gap:18px;counter-reset:step;}
.step-item{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:18px;
  border:1px solid var(--stroke);border-radius:var(--radius);
  background:rgba(8,18,41,.42);padding:22px;
}
.step-num{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  font-weight:800;font-size:1.1rem;color:#03121f;
  background:linear-gradient(135deg,var(--cyan),var(--blue));box-shadow:var(--glow);
}
.step-item h3{font-size:1.04rem;font-weight:700;margin-bottom:8px;}
.step-item p{color:var(--muted);font-size:14.6px;margin:0;}
/* TIMELINE / PROGRESS */
.tier-bar{margin-top:26px;display:grid;gap:14px;}
.tier{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  border:1px solid var(--stroke);border-radius:var(--radius-sm);
  background:rgba(3,7,18,.5);padding:14px 18px;
}
.tier strong{font-size:14.6px;}
.tier span{font-size:13px;color:var(--muted);}
.tier-progress{flex:1;height:8px;border-radius:999px;background:rgba(148,163,184,.18);overflow:hidden;min-width:90px;}
.tier-progress i{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),var(--blue));border-radius:999px;}
/* DATA STRIP */
.data-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
  border:1px solid var(--stroke);border-radius:var(--radius);
  background:var(--panel);overflow:hidden;
}
.data-cell{padding:24px 20px;border-right:1px solid var(--stroke);}
.data-cell:last-child{border-right:none;}
.data-cell b{display:block;font-size:1.7rem;font-weight:800;color:#e0f2fe;line-height:1.15;}
.data-cell span{font-size:13px;color:var(--muted);}
/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  border:1px solid var(--stroke);border-radius:var(--radius);
  background:rgba(8,18,41,.42);overflow:hidden;
}
.faq-q{
  width:100%;text-align:left;background:none;border:none;color:var(--text);
  font-size:15.4px;font-weight:700;padding:19px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;
}
.faq-q i{color:var(--cyan);transition:transform .28s ease;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{padding:0 22px 20px;color:var(--muted);font-size:14.8px;display:none;}
.faq-item.open .faq-a{display:block;}
/* CMS LIST */
.cms-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.cms-card{
  border:1px solid var(--stroke);border-radius:var(--radius);overflow:hidden;
  background:var(--panel);display:flex;flex-direction:column;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.cms-card:hover{transform:translateY(-5px);border-color:var(--stroke-strong);box-shadow:var(--shadow),var(--glow);}
.cms-thumb{aspect-ratio:16/9;overflow:hidden;background:rgba(3,7,18,.6);}
.cms-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.cms-card:hover .cms-thumb img{transform:scale(1.06);}
.cms-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.cms-meta{font-size:12.2px;color:var(--dim);display:flex;gap:10px;flex-wrap:wrap;}
.cms-meta b{color:var(--holo);font-weight:700;}
.cms-body h3{font-size:1rem;font-weight:700;line-height:1.4;margin:0;}
.cms-body h3 a{color:var(--text);}
.cms-body h3 a:hover{color:var(--cyan);}
.cms-body p{color:var(--muted);font-size:14.2px;margin:0;flex:1;}
.cms-more{margin-top:34px;text-align:center;}
/* CTA */
.cta-band{
  border:1px solid var(--stroke-strong);border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(37,99,235,.28),rgba(56,189,248,.12));
  box-shadow:var(--shadow-lg);padding:clamp(28px,4vw,44px);
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;
}
.cta-band h2{font-size:clamp(1.3rem,2.4vw,1.85rem);font-weight:800;margin-bottom:10px;}
.cta-band p{color:#cbd5e1;margin:0;font-size:15px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
/* FOOTER */
.site-footer{border-top:1px solid var(--stroke);background:linear-gradient(180deg,rgba(3,7,18,.7),rgba(8,18,41,.9));padding:clamp(44px,5vw,68px) 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr;gap:34px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-about{color:var(--muted);font-size:14.4px;max-width:460px;margin:0;}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--holo);margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:var(--muted);font-size:14.4px;}
.footer-col a:hover{color:var(--cyan);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:14.4px;}
.footer-contact i{color:var(--cyan);margin-top:4px;}
.footer-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid var(--stroke);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--dim);font-size:13px;
}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 16px;border-radius:999px;
  background:rgba(7,7,13,.82);backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),
    linear-gradient(135deg,var(--cyan),var(--blue));
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--text);font-size:13.6px;font-weight:700;
  box-shadow:0 0 22px rgba(56,189,248,.45);
  transition:transform .25s ease,box-shadow .25s ease,opacity .25s ease;
  opacity:.82;
}
.fab:hover{opacity:1;color:var(--text);transform:translateY(-3px);box-shadow:0 0 34px rgba(56,189,248,.7);}
.fab:active{transform:scale(.96);}
.fab .fab-ico{display:grid;place-items:center;width:22px;height:22px;}
.fab .fab-dot{
  position:absolute;top:8px;right:10px;width:9px;height:9px;border-radius:50%;
  background:#22d3ee;box-shadow:0 0 10px #22d3ee;animation:pulse 1.6s infinite;
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}
/* RESPONSIVE */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;}
  .grid-3,.cms-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .data-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .data-cell:nth-child(2){border-right:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:920px){
  .main-nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(3,7,18,.98);border:1px solid var(--stroke);
    border-radius:var(--radius);padding:12px;
    box-shadow:var(--shadow-lg);display:none;
  }
  .main-nav.open{display:flex;}
  .nav-toggle{display:grid;place-items:center;}
  .header-actions .btn-ghost{display:none;}
  .scenario-row{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;}
}
@media (max-width:560px){
  .grid-3,.grid-2,.grid-4,.cms-grid{grid-template-columns:1fr;}
  .data-strip{grid-template-columns:1fr;}
  .data-cell{border-right:none;border-bottom:1px solid var(--stroke);}
  .data-cell:last-child{border-bottom:none;}
  .footer-grid{grid-template-columns:1fr;}
  .header-actions .btn-glow span{display:none;}
  .step-item{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:18px;}
  .step-num{width:44px;height:44px;font-size:1rem;border-radius:13px;}
  .hero-stat-grid{grid-template-columns:1fr;}
  .fab{left:12px;bottom:80px;padding:12px 14px;font-size:12.6px;}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-deep:#081229;
  --panel:rgba(12,22,46,.66);
  --panel-solid:#0b1730;
  --stroke:rgba(56,189,248,.18);
  --stroke-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow-lg:0 26px 60px rgba(2,6,23,.66);
  --shadow:0 14px 34px rgba(2,6,23,.5);
  --glow:0 0 22px rgba(56,189,248,.38);
  --glow-strong:0 0 34px rgba(37,99,235,.55);
  --wrap:1200px;
  --sec-pad:clamp(54px,7vw,100px);
}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:'';
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(37,99,235,.30), transparent 62%),
    radial-gradient(780px 460px at 92% 4%, rgba(56,189,248,.18), transparent 60%),
    linear-gradient(180deg,#030712 0%,#081229 50%,#030712 100%);
}
body::after{
  content:'';
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(96,165,250,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,165,250,.055) 1px,transparent 1px);
  background-size:58px 58px;
  opacity:.7;
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease;}
a:hover{color:#7dd3fc;}
button{font-family:inherit;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  background:linear-gradient(180deg,rgba(3,7,18,.94),rgba(3,7,18,.74));
  border-bottom:1px solid var(--stroke);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:70px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),var(--cyan));
  color:#04101f;font-size:17px;
  box-shadow:var(--glow);
}
.brand-text{font-size:15.5px;font-weight:700;line-height:1.2;max-width:230px;}
.brand-text b{color:var(--cyan);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap;}
.main-nav .nav-link{
  color:var(--muted);font-size:14.5px;font-weight:600;
  padding:9px 13px;border-radius:10px;white-space:nowrap;
  border:1px solid transparent;
}
.main-nav .nav-link:hover{color:var(--text);background:rgba(56,189,248,.09);}
.main-nav .nav-link.active{
  color:var(--text);
  background:rgba(56,189,248,.13);
  border-color:var(--stroke-strong);
  box-shadow:inset 0 0 18px rgba(56,189,248,.12);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-ghost{
  font-size:14px;font-weight:600;color:var(--cyan);
  padding:9px 16px;border-radius:11px;
  border:1px solid var(--stroke-strong);
  background:rgba(56,189,248,.06);
}
.btn-ghost:hover{background:rgba(56,189,248,.16);color:#e0f2fe;box-shadow:var(--glow);}
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:#03121f;
  padding:10px 20px;border-radius:11px;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:0 0 20px rgba(56,189,248,.45);
  border:none;transition:transform .2s ease,box-shadow .25s ease;
}
.btn-glow:hover{color:#03121f;transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.7);}
.btn-glow:active{transform:translateY(0) scale(.98);}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.08);
  border:1px solid var(--stroke);
  color:var(--text);font-size:17px;
}
/* ---------- BUTTONS / TAGS ---------- */
.btn-outline{
  display:inline-flex;align-items:center;gap:9px;
  font-size:15px;font-weight:600;color:var(--text);
  padding:12px 24px;border-radius:12px;
  border:1px solid var(--stroke-strong);
  background:rgba(10,20,42,.6);
}
.btn-outline:hover{color:var(--text);background:rgba(56,189,248,.14);box-shadow:var(--glow);}
.btn-lg{padding:14px 28px;font-size:15.5px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid var(--stroke-strong);
  padding:6px 13px;border-radius:999px;margin-bottom:16px;
}
/* ---------- ARTICLE HERO ---------- */
.article-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--stroke);}
.article-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.3;
}
.article-hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(3,7,18,.97) 0%,rgba(3,7,18,.86) 44%,rgba(8,18,41,.74) 100%);
}
.article-hero-inner{position:relative;z-index:2;padding:clamp(34px,5vw,64px) 0 clamp(30px,4vw,48px);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:18px;
}
.crumb a{color:var(--holo);font-weight:600;}
.crumb a:hover{color:var(--cyan);}
.crumb i{font-size:10px;color:var(--dim);}
.article-hero h1{
  font-size:clamp(1.6rem,3.2vw,2.6rem);
  font-weight:800;line-height:1.28;margin:0 0 16px;
  max-width:940px;
  background:linear-gradient(100deg,#ffffff 32%,#93c5fd 80%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.article-lead{
  color:#cbd5e1;font-size:clamp(.95rem,1.1vw,1.05rem);
  max-width:820px;margin:0 0 22px;line-height:1.7;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;}
.meta-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.6px;font-weight:600;color:#a5f3fc;
  background:rgba(8,47,73,.55);
  border:1px solid rgba(56,189,248,.28);
  padding:6px 13px;border-radius:999px;
}
.meta-chip i{font-size:12px;color:var(--cyan);}
/* ---------- COVER ---------- */
.cover-block{position:relative;margin-top:-1px;}
.cover-frame{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--stroke-strong);
  box-shadow:var(--shadow-lg),0 0 44px rgba(37,99,235,.24);
  background:var(--panel-solid);
}
.cover-frame img{width:100%;height:auto;object-fit:cover;max-height:460px;}
.cover-caption{
  font-size:12.8px;color:var(--muted);
  padding:12px 6px 0;text-align:left;
}
/* ---------- SECTIONS ---------- */
.section{padding:var(--sec-pad) 0;position:relative;}
.section + .section{border-top:1px solid rgba(56,189,248,.1);}
.section-head{max-width:820px;margin-bottom:34px;}
.section-head h2{
  font-size:clamp(1.32rem,2.3vw,1.95rem);
  font-weight:800;margin:0 0 12px;line-height:1.34;
}
.section-head p{color:var(--muted);margin:0;font-size:15px;}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:12px;
}
/* ---------- PULL QUOTE ---------- */
.pull-wrap{padding-top:clamp(34px,4vw,54px);}
.pull-quote{
  position:relative;
  border-left:3px solid var(--cyan);
  background:linear-gradient(105deg,rgba(12,22,46,.86),rgba(8,18,41,.5));
  border-radius:0 var(--radius) var(--radius) 0;
  padding:clamp(22px,3vw,34px) clamp(22px,3.4vw,40px);
  box-shadow:var(--shadow);
}
.pull-quote::before{
  content:'\201C';
  position:absolute;top:-6px;left:16px;
  font-size:74px;font-weight:800;color:rgba(56,189,248,.2);
  line-height:1;font-family:Georgia,serif;
}
.pull-quote p{
  position:relative;margin:0;
  font-size:clamp(1rem,1.5vw,1.2rem);
  font-weight:600;color:#e2e8f5;line-height:1.6;
}
.pull-quote cite{
  display:block;margin-top:14px;font-style:normal;
  font-size:13px;color:var(--muted);font-weight:600;
}
/* ---------- KEY GRID ---------- */
.key-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:18px;
}
.key-card{
  background:var(--panel);
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  padding:24px 22px;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.key-card:hover{transform:translateY(-5px);border-color:var(--stroke-strong);box-shadow:var(--glow);}
.key-card i{
  width:44px;height:44px;border-radius:13px;
  display:grid;place-items:center;
  background:rgba(56,189,248,.12);
  border:1px solid var(--stroke-strong);
  color:var(--cyan);font-size:17px;margin-bottom:16px;
}
.key-card h3{font-size:1.02rem;font-weight:700;margin:0 0 9px;}
.key-card p{margin:0;font-size:14.4px;color:var(--muted);line-height:1.62;}
/* ---------- ARTICLE BODY ---------- */
.article-body{
  max-width:860px;
  font-size:16.4px;
  line-height:1.72;
  color:#dbe3f0;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:clamp(1.24rem,2vw,1.6rem);
  font-weight:800;margin:2.4em 0 .8em;color:var(--text);
  line-height:1.36;
  padding-left:14px;
  border-left:3px solid var(--cyan);
}
.article-body h3{
  font-size:clamp(1.08rem,1.5vw,1.24rem);
  font-weight:700;margin:1.9em 0 .7em;color:#e8f1ff;
}
.article-body p{margin:0 0 1.15em;}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.25em;}
.article-body li{margin-bottom:.55em;}
.article-body ul li::marker{color:var(--cyan);}
.article-body ol li::marker{color:var(--cyan);font-weight:700;}
.article-body strong{color:#ffffff;font-weight:700;}
.article-body a{color:var(--cyan);border-bottom:1px dashed rgba(56,189,248,.5);}
.article-body a:hover{color:#e0f2fe;border-bottom-color:#e0f2fe;}
.article-body blockquote{
  margin:1.8em 0;padding:20px 24px;
  background:rgba(12,22,46,.7);
  border-left:3px solid var(--holo);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#e2e8f5;font-weight:600;
}
.article-body img{
  border-radius:var(--radius);
  border:1px solid var(--stroke);
  margin:1.6em 0;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;
  font-size:14.6px;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(56,189,248,.1);color:#e0f2fe;font-weight:700;}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:8px;}
/* ---------- MEDIA SPLIT ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:clamp(24px,4vw,52px);
  align-items:center;
}
.split-media{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--stroke-strong);
  box-shadow:var(--shadow);
}
.split-media img{width:100%;height:100%;object-fit:cover;min-height:260px;}
.split-copy h2{font-size:clamp(1.28rem,2.2vw,1.85rem);font-weight:800;margin:0 0 14px;}
.split-copy p{color:var(--muted);font-size:15.2px;margin:0 0 16px;}
.tick-list{list-style:none;padding:0;margin:0 0 20px;display:grid;gap:11px;}
.tick-list li{display:flex;gap:11px;font-size:14.8px;color:#dbeafe;align-items:flex-start;}
.tick-list i{color:var(--cyan);margin-top:4px;font-size:13px;}
/* ---------- CHANNELS ---------- */
.channel-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:18px;
}
.channel-card{
  display:flex;flex-direction:column;gap:12px;
  background:linear-gradient(160deg,rgba(12,22,46,.9),rgba(8,18,41,.6));
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  padding:26px 24px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.channel-card:hover{transform:translateY(-5px);border-color:var(--stroke-strong);box-shadow:var(--glow-strong);}
.channel-card .ch-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:rgba(37,99,235,.18);border:1px solid var(--stroke-strong);
  color:var(--cyan);font-size:17px;
}
.channel-card h3{font-size:1.06rem;font-weight:700;margin:0;color:var(--text);}
.channel-card p{margin:0;font-size:14.4px;color:var(--muted);}
.channel-card .ch-link{
  margin-top:6px;font-size:14px;font-weight:700;color:var(--cyan);
  display:inline-flex;align-items:center;gap:8px;
}
.channel-card:hover .ch-link{color:#e0f2fe;}
/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  background:var(--panel);
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:var(--stroke-strong);}
.faq-item[open]{border-color:var(--stroke-strong);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:19px 24px;
  font-size:15.6px;font-weight:700;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:'\f067';font-family:'Font Awesome 6 Free';font-weight:900;
  color:var(--cyan);font-size:13px;transition:transform .25s ease;
}
.faq-item[open] summary::after{content:'\f068';}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:14.8px;line-height:1.7;}
/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--stroke-strong);
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(37,99,235,.28),rgba(8,18,41,.92) 58%);
  box-shadow:var(--shadow-lg);
  padding:clamp(28px,4vw,52px);
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:clamp(22px,3vw,42px);
  align-items:center;
}
.cta-band h2{font-size:clamp(1.32rem,2.3vw,1.9rem);font-weight:800;margin:0 0 12px;}
.cta-band p{color:#cbd5e1;margin:0 0 20px;font-size:15.2px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:13px;}
.cta-stats{display:grid;gap:12px;}
.stat{
  background:rgba(3,7,18,.6);
  border:1px solid var(--stroke);
  border-radius:var(--radius-sm);
  padding:15px 18px;
}
.stat strong{display:block;font-size:1.3rem;font-weight:800;color:var(--cyan);line-height:1.2;}
.stat span{font-size:13px;color:var(--muted);}
/* ---------- FAB ---------- */
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:58px;height:58px;border-radius:999px;
  display:grid;place-items:center;
  background:rgba(7,7,13,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:2px solid transparent;
  background-clip:padding-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:var(--cyan);font-size:20px;
  transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;
  opacity:.78;
}
.fab-support::before{
  content:'';position:absolute;inset:-2px;border-radius:999px;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  z-index:-1;
}
.fab-support:hover{opacity:1;transform:scale(1.09);box-shadow:0 0 30px rgba(56,189,248,.7);color:#e0f2fe;}
.fab-support:active{transform:scale(.94);}
.fab-dot{
  position:absolute;top:2px;right:2px;
  width:12px;height:12px;border-radius:999px;
  background:#f43f5e;box-shadow:0 0 0 2px rgba(3,7,18,.9);
  animation:fabPulse 1.8s infinite;
}
@keyframes fabPulse{0%,100%{opacity:1;}50%{opacity:.35;}}
/* ---------- FOOTER ---------- */
.site-footer{
  margin-top:20px;
  border-top:1px solid var(--stroke);
  background:linear-gradient(180deg,rgba(3,7,18,.7),rgba(8,18,41,.95));
  padding:clamp(40px,5vw,68px) 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr);
  gap:clamp(24px,3.4vw,48px);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{max-width:none;}
.footer-about{color:var(--muted);font-size:14.4px;max-width:440px;margin:0;}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#e0f2fe;margin:0 0 16px;}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
.footer-col ul a{color:var(--muted);font-size:14.2px;}
.footer-col ul a:hover{color:var(--cyan);}
.footer-contact li{display:flex;gap:11px;color:var(--muted);font-size:14.2px;align-items:flex-start;}
.footer-contact i{color:var(--cyan);margin-top:4px;font-size:13px;}
.footer-bottom{
  margin-top:34px;padding-top:20px;
  border-top:1px solid rgba(56,189,248,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  color:var(--dim);font-size:13px;
}
/* ---------- RESPONSIVE ---------- */
@media (max-width:1024px){
  .main-nav .nav-link{padding:8px 10px;font-size:14px;}
  .brand-text{font-size:14.6px;max-width:190px;}
  .cta-band{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-about{max-width:none;}
}
@media (max-width:860px){
  .nav-toggle{display:grid;place-items:center;}
  .main-nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    margin:0;padding:14px;
    background:rgba(4,9,22,.98);
    border:1px solid var(--stroke-strong);
    border-radius:var(--radius);
    box-shadow:var(--shadow-lg);
    display:none;
  }
  .main-nav.open{display:flex;}
  .main-nav .nav-link{padding:12px 14px;font-size:15px;}
  .header-actions{display:none;}
  .header-inner{gap:12px;}
}
@media (max-width:768px){
  .article-hero-inner{padding:30px 0;}
  .section{padding:clamp(38px,8vw,60px) 0;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:26px 22px;}
  .fab-support{width:54px;height:54px;font-size:18px;bottom:88px;}
}
@media (max-width:520px){
  .brand-text{font-size:13.6px;max-width:150px;}
  .brand-mark{width:34px;height:34px;font-size:15px;}
  .article-body{font-size:15.6px;}
  .key-grid,.channel-grid{grid-template-columns:1fr;}
  .cta-actions .btn-outline,.cta-actions .btn-glow{width:100%;justify-content:center;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-deep:#081229;
  --panel:rgba(12,22,46,.66);
  --panel-solid:#0b1730;
  --stroke:rgba(56,189,248,.18);
  --stroke-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow-lg:0 26px 60px rgba(2,6,23,.66);
  --shadow:0 14px 34px rgba(2,6,23,.5);
  --glow:0 0 22px rgba(56,189,248,.38);
  --glow-strong:0 0 34px rgba(37,99,235,.55);
  --wrap:1200px;
  --sec-pad:clamp(54px,7vw,100px);
}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:'';
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(37,99,235,.30), transparent 62%),
    radial-gradient(780px 460px at 92% 4%, rgba(56,189,248,.18), transparent 60%),
    linear-gradient(180deg,#030712 0%,#081229 50%,#030712 100%);
}
body::after{
  content:'';
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(96,165,250,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,165,250,.055) 1px,transparent 1px);
  background-size:58px 58px;
  opacity:.7;
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease,transform .25s ease;}
a:hover{color:#7dd3fc;}
button{font-family:inherit;}
.wrap{
  width:100%;max-width:var(--wrap);
  margin:0 auto;padding:0 clamp(16px,3vw,26px);
}
/* HEADER */
.site-header{
  position:sticky;top:0;z-index:1000;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  background:linear-gradient(180deg,rgba(3,7,18,.94),rgba(3,7,18,.74));
  border-bottom:1px solid var(--stroke);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:70px;position:relative;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),var(--cyan));
  color:#04101f;font-size:17px;
  box-shadow:var(--glow);
}
.brand-text{
  font-size:15.5px;font-weight:700;line-height:1.2;
  max-width:230px;
}
.brand-text b{color:var(--cyan);}
.main-nav{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;flex-wrap:wrap;
}
.main-nav .nav-link{
  color:var(--muted);font-size:14.5px;font-weight:600;
  padding:9px 13px;border-radius:10px;white-space:nowrap;
  border:1px solid transparent;
}
.main-nav .nav-link:hover{color:var(--text);background:rgba(56,189,248,.09);}
.main-nav .nav-link.active{
  color:var(--text);
  background:rgba(56,189,248,.13);
  border-color:var(--stroke-strong);
  box-shadow:inset 0 0 18px rgba(56,189,248,.12);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-ghost{
  font-size:14px;font-weight:600;color:var(--cyan);
  padding:9px 16px;border-radius:11px;
  border:1px solid var(--stroke-strong);
  background:rgba(56,189,248,.06);
}
.btn-ghost:hover{background:rgba(56,189,248,.16);color:#e0f2fe;box-shadow:var(--glow);}
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:#03121f;
  padding:10px 20px;border-radius:11px;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:0 0 20px rgba(56,189,248,.45);
  border:none;transition:transform .2s ease,box-shadow .25s ease;
}
.btn-glow:hover{color:#03121f;transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.7);}
.btn-glow:active{transform:translateY(0) scale(.98);}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.08);
  border:1px solid var(--stroke);
  color:var(--text);font-size:17px;
}
/* BUTTONS */
.btn-outline{
  display:inline-flex;align-items:center;gap:9px;
  font-size:15px;font-weight:600;color:var(--text);
  padding:12px 24px;border-radius:12px;
  border:1px solid var(--stroke-strong);
  background:rgba(10,20,42,.6);
}
.btn-outline:hover{color:var(--text);background:rgba(56,189,248,.14);box-shadow:var(--glow);}
.btn-lg{padding:14px 28px;font-size:15.5px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid var(--stroke-strong);
  padding:6px 13px;border-radius:999px;margin-bottom:16px;
}
/* HERO */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--stroke);}
.cat-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.3;
}
.cat-hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(3,7,18,.97) 0%,rgba(3,7,18,.85) 48%,rgba(8,18,41,.74) 100%);
}
.cat-hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:clamp(28px,4vw,54px);
  padding:clamp(42px,6vw,80px) 0 clamp(34px,4vw,52px);
  align-items:center;
}
.cat-hero h1{
  font-size:clamp(1.7rem,3.4vw,2.7rem);
  font-weight:800;margin-bottom:18px;line-height:1.25;
  background:linear-gradient(100deg,#ffffff 30%,#93c5fd 78%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero .lead{
  color:#cbd5e1;font-size:clamp(.96rem,1.1vw,1.06rem);
  max-width:640px;margin-bottom:22px;
}
.hero-points{display:grid;gap:11px;margin:0 0 26px;padding:0;list-style:none;max-width:620px;}
.hero-points li{display:flex;align-items:flex-start;gap:11px;font-size:14.8px;color:#dbeafe;}
.hero-points i{color:var(--cyan);margin-top:4px;font-size:13px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:22px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;}
.trust-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.4px;font-weight:600;color:#a5f3fc;
  background:rgba(8,47,73,.55);
  border:1px solid rgba(56,189,248,.28);
  padding:6px 12px;border-radius:999px;
}
.hero-card{
  border-radius:var(--radius-lg);
  border:1px solid var(--stroke-strong);
  background:linear-gradient(160deg,rgba(12,22,46,.92),rgba(6,13,30,.92));
  box-shadow:var(--shadow-lg),0 0 40px rgba(37,99,235,.24);
  padding:clamp(20px,2.4vw,28px);
  backdrop-filter:blur(12px);
}
.hero-card h3{font-size:15px;font-weight:700;margin-bottom:16px;color:#e0f2fe;letter-spacing:.02em;}
.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
.stat-box{
  border:1px solid var(--stroke);
  border-radius:var(--radius-sm);
  background:rgba(56,189,248,.05);
  padding:14px 14px;
}
.stat-num{font-size:1.35rem;font-weight:800;color:var(--cyan);line-height:1.15;}
.stat-lbl{font-size:12.5px;color:var(--muted);margin-top:4px;}
.hero-shot{
  margin-top:16px;border-radius:var(--radius);
  overflow:hidden;border:1px solid var(--stroke);
}
/* SECTION */
section.block{padding:var(--sec-pad) 0;position:relative;}
section.block.alt{background:linear-gradient(180deg,rgba(8,18,41,.55),rgba(3,7,18,.2));border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke);}
.sec-head{max-width:760px;margin-bottom:clamp(26px,3vw,42px);}
.sec-head h2{
  font-size:clamp(1.35rem,2.4vw,2rem);
  font-weight:800;margin-bottom:12px;line-height:1.3;
}
.sec-head p{color:var(--muted);font-size:15px;margin:0;}
.eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--holo);margin-bottom:10px;display:block;
}
/* GRIDS */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.feature-card{
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  background:var(--panel);
  padding:24px 22px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.feature-card:hover{
  transform:translateY(-5px);
  border-color:var(--stroke-strong);
  box-shadow:var(--shadow),0 0 26px rgba(56,189,248,.22);
}
.feature-icon{
  width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;font-size:19px;
  background:linear-gradient(140deg,rgba(37,99,235,.85),rgba(56,189,248,.85));
  color:#03121f;margin-bottom:16px;
  box-shadow:0 0 18px rgba(56,189,248,.32);
}
.feature-card h3{font-size:16.5px;font-weight:700;margin-bottom:10px;}
.feature-card p{color:var(--muted);font-size:14.4px;margin:0;}
/* SCENARIO LIST */
.scene-list{display:grid;gap:16px;}
.scene-item{
  display:grid;grid-template-columns:52px minmax(0,1fr);
  gap:18px;align-items:flex-start;
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  background:rgba(9,18,38,.6);
  padding:20px 22px;
  transition:border-color .25s ease,background .25s ease;
}
.scene-item:hover{border-color:var(--stroke-strong);background:rgba(11,23,48,.78);}
.scene-num{
  width:52px;height:52px;border-radius:14px;
  display:grid;place-items:center;
  font-weight:800;font-size:17px;color:var(--cyan);
  background:rgba(56,189,248,.1);
  border:1px solid var(--stroke-strong);
}
.scene-item h3{font-size:16px;font-weight:700;margin-bottom:8px;}
.scene-item p{color:var(--muted);font-size:14.4px;margin:0;}
/* FLOW */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:flow;}
.flow-step{
  position:relative;
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(12,22,46,.8),rgba(6,13,30,.72));
  padding:22px 20px;
}
.flow-step::before{
  counter-increment:flow;
  content:"0" counter(flow);
  display:block;
  font-size:22px;font-weight:800;
  color:rgba(56,189,248,.6);
  margin-bottom:12px;
  line-height:1;
}
.flow-step h3{font-size:15.5px;font-weight:700;margin-bottom:9px;}
.flow-step p{color:var(--muted);font-size:14px;margin:0;}
/* DATA TABLE */
.data-panel{
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  background:rgba(9,18,38,.62);
  overflow:hidden;
}
.data-row{
  display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr) minmax(0,1fr);
  gap:14px;padding:16px 20px;
  border-bottom:1px solid var(--stroke);
  font-size:14.4px;
}
.data-row:last-child{border-bottom:none;}
.data-row.head{
  background:rgba(56,189,248,.08);
  font-weight:700;color:#e0f2fe;font-size:13.4px;
  letter-spacing:.05em;text-transform:uppercase;
}
.data-row span:first-child{color:#dbeafe;font-weight:600;}
.data-row span{color:var(--muted);}
.badge-ok{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.4px;font-weight:700;color:#6ee7b7;
  background:rgba(16,185,129,.12);
  border:1px solid rgba(16,185,129,.3);
  padding:4px 10px;border-radius:999px;
}
/* FAQ */
.faq-list{display:grid;gap:14px;}
.faq-item{
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  background:var(--panel);
  padding:20px 22px;
}
.faq-item h3{
  font-size:16px;font-weight:700;margin-bottom:10px;
  display:flex;gap:10px;align-items:flex-start;
}
.faq-item h3 i{color:var(--cyan);font-size:14px;margin-top:5px;}
.faq-item p{color:var(--muted);font-size:14.5px;margin:0;}
/* NEWS */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.news-card{
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  background:var(--panel);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-card:hover{transform:translateY(-5px);border-color:var(--stroke-strong);box-shadow:var(--shadow),0 0 24px rgba(56,189,248,.2);}
.news-thumb{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--stroke);}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-meta{font-size:12.4px;color:var(--dim);display:flex;gap:12px;flex-wrap:wrap;}
.news-body h3{font-size:15.5px;font-weight:700;line-height:1.45;margin:0;}
.news-body h3 a{color:var(--text);}
.news-body h3 a:hover{color:var(--cyan);}
.news-body p{color:var(--muted);font-size:14px;margin:0;flex:1;}
.news-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:700;color:var(--cyan);
}
.empty-note{color:var(--muted);font-size:14.5px;padding:20px 0;}
/* CTA */
.cta-band{
  border:1px solid var(--stroke-strong);
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(37,99,235,.28),rgba(8,18,41,.9) 60%);
  padding:clamp(28px,4vw,48px);
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);
  gap:26px;align-items:center;
  box-shadow:var(--shadow-lg),0 0 40px rgba(37,99,235,.22);
}
.cta-band h2{font-size:clamp(1.3rem,2.3vw,1.9rem);font-weight:800;margin-bottom:12px;}
.cta-band p{color:#cbd5e1;font-size:15px;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
/* FOOTER */
.site-footer{
  margin-top:clamp(40px,5vw,70px);
  border-top:1px solid var(--stroke);
  background:linear-gradient(180deg,rgba(3,7,18,.6),rgba(3,7,18,.96));
  padding:clamp(40px,5vw,64px) 0 26px;
}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr);
  gap:32px;margin-bottom:34px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-about{color:var(--muted);font-size:14.2px;max-width:420px;margin:0;}
.footer-col h4{font-size:14.4px;font-weight:700;margin-bottom:14px;color:#e0f2fe;}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:9px;}
.footer-col ul a{color:var(--muted);font-size:14px;}
.footer-col ul a:hover{color:var(--cyan);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:14px;}
.footer-contact i{color:var(--cyan);margin-top:4px;font-size:13px;}
.footer-bottom{
  border-top:1px solid var(--stroke);
  padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--dim);font-size:13px;
}
/* FAB */
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:18px;
  display:grid;place-items:center;
  background:rgba(7,7,13,.8);
  border:1.5px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.85),rgba(7,7,13,.85)),
    linear-gradient(135deg,var(--cyan),var(--blue));
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--cyan);font-size:20px;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  backdrop-filter:blur(10px);
  transition:transform .25s ease,box-shadow .25s ease,color .25s ease;
}
.fab-support:hover{transform:scale(1.1);color:#e0f2fe;box-shadow:0 0 30px rgba(56,189,248,.75);}
.fab-support:active{transform:scale(.95);}
.fab-dot{
  position:absolute;top:6px;right:8px;
  width:9px;height:9px;border-radius:50%;
  background:#f43f5e;
  box-shadow:0 0 0 3px rgba(244,63,94,.25);
  animation:pulse 1.6s infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.55;transform:scale(1.22);}
}
/* RESPONSIVE */
@media (max-width:1024px){
  .cat-hero-inner{grid-template-columns:1fr;gap:34px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band{grid-template-columns:1fr;}
}
@media (max-width:820px){
  .nav-toggle{display:grid;place-items:center;}
  .main-nav{
    position:absolute;top:70px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    background:rgba(3,7,18,.98);
    border-bottom:1px solid var(--stroke);
    padding:14px 18px 18px;
    display:none;
  }
  .main-nav.open{display:flex;}
  .main-nav .nav-link{padding:11px 12px;font-size:15px;}
  .header-actions{margin-left:auto;}
  .brand-text{max-width:150px;font-size:13.5px;}
}
@media (max-width:768px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .data-row{grid-template-columns:1fr;gap:6px;}
  .data-row.head{display:none;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .header-actions .btn-ghost{display:none;}
  .brand-text{max-width:120px;font-size:12.6px;}
  .flow{grid-template-columns:1fr;}
  .scene-item{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:18px 16px;}
  .scene-num{width:44px;height:44px;font-size:15px;}
  .hero-cta .btn-glow,.hero-cta .btn-outline{width:100%;justify-content:center;}
  .cta-actions .btn-glow,.cta-actions .btn-outline{width:100%;justify-content:center;}
  .fab-support{width:52px;height:52px;bottom:88px;}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-deep:#081229;
  --panel:rgba(12,22,46,.66);
  --panel-solid:#0b1730;
  --stroke:rgba(56,189,248,.18);
  --stroke-strong:rgba(56,189,248,.42);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow-lg:0 26px 60px rgba(2,6,23,.66);
  --shadow:0 14px 34px rgba(2,6,23,.5);
  --glow:0 0 22px rgba(56,189,248,.38);
  --glow-strong:0 0 34px rgba(37,99,235,.55);
  --wrap:1200px;
  --sec-pad:clamp(54px,7vw,100px);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:'';
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(37,99,235,.30), transparent 62%),
    radial-gradient(780px 460px at 92% 4%, rgba(56,189,248,.18), transparent 60%),
    linear-gradient(180deg,#030712 0%,#081229 50%,#030712 100%);
}
body::after{
  content:'';
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(96,165,250,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(96,165,250,.055) 1px,transparent 1px);
  background-size:58px 58px;
  opacity:.7;
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease,transform .25s ease;}
a:hover{color:#7dd3fc;}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.28;font-weight:700;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 clamp(16px,3vw,26px);}
/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  background:linear-gradient(180deg,rgba(3,7,18,.94),rgba(3,7,18,.74));
  border-bottom:1px solid var(--stroke);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:70px;position:relative;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),var(--cyan));
  color:#04101f;font-size:17px;
  box-shadow:var(--glow);
  flex:0 0 auto;
}
.brand-text{font-size:15.5px;font-weight:700;line-height:1.2;max-width:230px;}
.brand-text b{color:var(--cyan);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap;}
.main-nav .nav-link{
  color:var(--muted);font-size:14.5px;font-weight:600;
  padding:9px 13px;border-radius:10px;white-space:nowrap;
  border:1px solid transparent;
}
.main-nav .nav-link:hover{color:var(--text);background:rgba(56,189,248,.09);}
.main-nav .nav-link.active{
  color:var(--text);
  background:rgba(56,189,248,.13);
  border-color:var(--stroke-strong);
  box-shadow:inset 0 0 18px rgba(56,189,248,.12);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-ghost{
  font-size:14px;font-weight:600;color:var(--cyan);
  padding:9px 16px;border-radius:11px;
  border:1px solid var(--stroke-strong);
  background:rgba(56,189,248,.06);
  white-space:nowrap;
}
.btn-ghost:hover{background:rgba(56,189,248,.16);color:#e0f2fe;box-shadow:var(--glow);}
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:#03121f;
  padding:10px 20px;border-radius:11px;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:0 0 20px rgba(56,189,248,.45);
  border:none;transition:transform .2s ease,box-shadow .25s ease;
  white-space:nowrap;
}
.btn-glow:hover{color:#03121f;transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.7);}
.btn-glow:active{transform:translateY(0) scale(.98);}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  background:rgba(56,189,248,.08);
  border:1px solid var(--stroke);
  color:var(--text);font-size:17px;
}
.nav-toggle:hover{background:rgba(56,189,248,.16);}
/* ---------- BUTTONS ---------- */
.btn-outline{
  display:inline-flex;align-items:center;gap:9px;
  font-size:15px;font-weight:600;color:var(--text);
  padding:12px 24px;border-radius:12px;
  border:1px solid var(--stroke-strong);
  background:rgba(10,20,42,.6);
}
.btn-outline:hover{color:var(--text);background:rgba(56,189,248,.14);box-shadow:var(--glow);}
.btn-lg{padding:14px 28px;font-size:15.5px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid var(--stroke-strong);
  padding:6px 13px;border-radius:999px;margin-bottom:16px;
}
/* ---------- HERO ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--stroke);}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.34;}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(3,7,18,.96) 0%,rgba(3,7,18,.84) 46%,rgba(8,18,41,.74) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:clamp(24px,3.4vw,50px);
  padding:clamp(26px,3.6vw,42px) 0 clamp(42px,5vw,72px);
  align-items:center;
}
.flash-strip{
  grid-column:1/-1;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  padding:13px 18px;border-radius:14px;
  background:linear-gradient(100deg,rgba(37,99,235,.30),rgba(56,189,248,.12));
  border:1px solid var(--stroke-strong);
  box-shadow:inset 0 0 26px rgba(56,189,248,.12);
}
.flash-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.6px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#e0f2fe;
}
.flash-label i{color:var(--cyan);}
.flash-text{color:#cbd5e1;font-size:14px;}
.flash-timer{margin-left:auto;font-size:13.4px;color:#bae6fd;display:inline-flex;align-items:center;gap:8px;}
.cd-num{
  font-variant-numeric:tabular-nums;color:#f0f9ff;font-weight:700;
  background:rgba(3,7,18,.66);padding:3px 11px;border-radius:8px;
  border:1px solid var(--stroke);
}
.hero-copy{text-align:left;}
.hero h1{
  font-size:clamp(1.68rem,3.4vw,2.8rem);
  font-weight:800;margin-bottom:18px;
  background:linear-gradient(100deg,#ffffff 30%,#93c5fd 78%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#cbd5e1;font-size:clamp(.96rem,1.1vw,1.06rem);max-width:640px;margin-bottom:22px;}
.hero-points{display:grid;gap:11px;margin-bottom:26px;max-width:640px;}
.hero-points li{display:flex;align-items:flex-start;gap:11px;font-size:14.8px;color:#dbeafe;}
.hero-points i{color:var(--cyan);margin-top:5px;font-size:13px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:22px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;}
.trust-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.4px;font-weight:600;color:#a5f3fc;
  background:rgba(8,47,73,.55);
  border:1px solid rgba(56,189,248,.28);
  padding:6px 12px;border-radius:999px;
}
.hero-visual{display:grid;gap:18px;}
.hero-shot{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--stroke-strong);
  box-shadow:var(--shadow-lg),0 0 40px rgba(37,99,235,.28);
}
.hero-shot img{width:100%;height:100%;min-height:210px;object-fit:cover;}
.offer-card{
  border-radius:var(--radius);padding:20px 22px;
  background:var(--panel);
  border:1px solid var(--stroke-strong);
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.offer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;}
.offer-head span{font-size:12.4px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);}
.offer-title{font-size:17px;font-weight:700;margin-bottom:8px;}
.offer-value{font-size:15px;color:#dbeafe;margin-bottom:6px;}
.offer-value b{color:#7dd3fc;}
.offer-note{font-size:13.4px;color:var(--dim);margin-bottom:16px;}
.offer-card .btn-glow{width:100%;justify-content:center;}
/* ---------- SECTIONS ---------- */
.section{padding:var(--sec-pad) 0;position:relative;}
.section--alt{
  background:linear-gradient(180deg,rgba(8,18,41,.60),rgba(3,7,18,.10));
  border-top:1px solid var(--stroke);
  border-bottom:1px solid var(--stroke);
}
.sec-head{max-width:830px;margin-bottom:clamp(26px,3.6vw,46px);text-align:left;}
.sec-title{font-size:clamp(1.32rem,2.3vw,2rem);margin-bottom:12px;}
.sec-sub{color:var(--muted);font-size:15.4px;margin:0;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.panel{
  background:var(--panel);
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  padding:24px 22px;
  backdrop-filter:blur(10px);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.panel:hover{transform:translateY(-4px);border-color:var(--stroke-strong);box-shadow:var(--shadow),var(--glow);}
.panel h3{font-size:16.6px;margin-bottom:9px;}
.panel p{color:var(--muted);font-size:14.6px;margin:0;}
.panel-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(37,99,235,.36),rgba(56,189,248,.22));
  border:1px solid var(--stroke-strong);color:var(--cyan);
  font-size:18px;margin-bottom:14px;
}
/* limit table */
.limit-table{
  border:1px solid var(--stroke);border-radius:var(--radius);overflow:hidden;
  background:rgba(8,18,41,.48);
}
.limit-row{
  display:grid;grid-template-columns:1.5fr 1fr .7fr 1fr;gap:12px;
  padding:16px 20px;align-items:center;font-size:14.6px;
  border-bottom:1px solid rgba(56,189,248,.10);
}
.limit-row:last-child{border-bottom:none;}
.limit-head{
  background:rgba(56,189,248,.09);color:#bae6fd;font-weight:700;
  font-size:12.4px;letter-spacing:.07em;text-transform:uppercase;
}
.limit-row strong{color:var(--text);font-weight:600;}
.limit-row span{color:var(--muted);}
.limit-row i{color:var(--cyan);margin-right:7px;font-size:13px;}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.step{
  background:var(--panel);border:1px solid var(--stroke);border-radius:var(--radius);
  padding:24px 22px;position:relative;
  transition:border-color .28s ease,transform .28s ease,box-shadow .28s ease;
}
.step:hover{border-color:var(--stroke-strong);transform:translateY(-4px);box-shadow:var(--shadow);}
.step-num{
  display:inline-block;font-size:12.4px;font-weight:800;letter-spacing:.12em;
  color:var(--cyan);margin-bottom:12px;
}
.step h3{font-size:16.4px;margin-bottom:8px;}
.step p{color:var(--muted);font-size:14.5px;margin:0;}
/* split */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:clamp(24px,3.6vw,50px);align-items:center;}
.split-media img{
  width:100%;border-radius:var(--radius-lg);
  border:1px solid var(--stroke-strong);box-shadow:var(--shadow-lg);
}
.badge-grid{display:flex;flex-wrap:wrap;gap:11px;margin-top:18px;}
.bank-badge{
  padding:10px 18px;border-radius:999px;
  border:1px solid var(--stroke-strong);
  background:rgba(10,20,42,.62);
  font-size:14px;font-weight:600;color:#dbeafe;
  transition:background .25s ease,box-shadow .25s ease,transform .25s ease;
}
.bank-badge:hover{background:rgba(56,189,248,.16);box-shadow:var(--glow);transform:translateY(-2px);}
/* quotes */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.quote{
  background:var(--panel);border:1px solid var(--stroke);border-radius:var(--radius);
  padding:24px 22px;text-align:left;
}
.quote .stars{color:var(--cyan);font-size:13px;letter-spacing:3px;margin-bottom:12px;}
.quote p{color:#dbeafe;font-size:14.8px;margin:0 0 16px;}
.quote-meta{font-size:13.2px;color:var(--dim);}
.quote-meta b{color:var(--muted);font-weight:600;}
/* safety list */
.safety-list{display:grid;gap:13px;max-width:900px;}
.safety-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:17px 20px;border-left:3px solid var(--cyan);
  background:rgba(8,18,41,.52);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
}
.safety-list i{color:var(--cyan);margin-top:5px;font-size:14px;}
.safety-list strong{display:block;font-size:15.4px;margin-bottom:3px;}
.safety-list span{color:var(--muted);font-size:14.4px;}
/* faq */
.faq-list{max-width:920px;}
.faq-item{
  background:var(--panel);border:1px solid var(--stroke);
  border-radius:var(--radius);margin-bottom:12px;overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item:hover{border-color:var(--stroke-strong);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:15.6px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:'\2b';font-family:inherit;font-weight:800;color:var(--cyan);font-size:18px;line-height:1;
}
.faq-item[open] summary::after{content:'\2212';}
.faq-body{padding:0 22px 20px;color:var(--muted);font-size:14.7px;}
.faq-body p{margin:0;}
/* cta band */
.cta-band{
  border-radius:var(--radius-lg);
  padding:clamp(30px,4.6vw,56px);
  background:linear-gradient(120deg,rgba(37,99,235,.36),rgba(56,189,248,.16));
  border:1px solid var(--stroke-strong);
  box-shadow:var(--shadow-lg);
  text-align:center;
}
.cta-band h2{font-size:clamp(1.3rem,2.4vw,2rem);margin-bottom:12px;}
.cta-band p{color:#dbeafe;max-width:720px;margin:0 auto 24px;font-size:15.2px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:13px;justify-content:center;}
/* ---------- FOOTER ---------- */
.site-footer{
  border-top:1px solid var(--stroke);
  background:linear-gradient(180deg,rgba(3,7,18,.92),rgba(8,18,41,.86));
  padding:clamp(40px,5vw,66px) 0 24px;
  margin-top:clamp(20px,3vw,40px);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.25fr;gap:34px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:15px;}
.footer-brand .brand-text{font-size:15px;}
.footer-about{color:var(--muted);font-size:14.4px;max-width:430px;margin:0;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:var(--muted);font-size:14.4px;}
.footer-col a:hover{color:var(--cyan);}
.footer-contact li{display:flex;gap:11px;color:var(--muted);font-size:14.2px;align-items:flex-start;}
.footer-contact i{color:var(--cyan);margin-top:5px;font-size:13px;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:34px;padding-top:18px;border-top:1px solid var(--stroke);
  color:var(--dim);font-size:13px;
}
/* ---------- FAB ---------- */
.fab-cyber{
  position:fixed;left:1rem;bottom:6rem;z-index:50;
  width:56px;height:56px;border-radius:999px;
  display:grid;place-items:center;
  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(135deg,#38BDF8,#2563EB);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  color:#7dd3fc;font-size:20px;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;
  transition:opacity .25s ease,transform .25s ease,box-shadow .3s ease;
}
.fab-cyber:hover{
  opacity:1;color:#e0f2fe;
  transform:scale(1.1);
  box-shadow:0 0 30px rgba(56,189,248,.75);
}
.fab-cyber:active{transform:scale(.95);}
.fab-cyber i{animation:fabPulse 2.8s ease-in-out infinite;}
@keyframes fabPulse{
  0%,100%{opacity:1;text-shadow:0 0 10px rgba(56,189,248,.6);}
  50%{opacity:.62;text-shadow:0 0 20px rgba(56,189,248,.95);}
}
.fab-dot{
  position:absolute;top:2px;right:2px;
  width:13px;height:13px;border-radius:999px;
  background:#f43f5e;
  box-shadow:0 0 10px rgba(244,63,94,.9);
  animation:dotPulse 1.8s ease-in-out infinite;
}
@keyframes dotPulse{
  0%,100%{transform:scale(1);opacity:1;}
  50%{transform:scale(.72);opacity:.6;}
}
/* ---------- RESPONSIVE ---------- */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .quote-grid{grid-template-columns:1fr;}
}
@media (max-width:980px){
  .nav-toggle{display:grid;place-items:center;}
  .main-nav{
    position:absolute;top:calc(100% + 1px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:6px;
    margin:0;padding:14px clamp(16px,3vw,26px);
    background:rgba(3,7,18,.985);
    border-bottom:1px solid var(--stroke-strong);
    box-shadow:var(--shadow-lg);
  }
  .main-nav.open{display:flex;}
  .main-nav .nav-link{padding:12px 14px;font-size:15px;}
  .hero-inner{grid-template-columns:minmax(0,1fr);}
  .split{grid-template-columns:minmax(0,1fr);}
  .split-media{order:-1;}
}
@media (max-width:768px){
  :root{--sec-pad:clamp(44px,9vw,64px);}
  .header-inner{gap:12px;min-height:64px;}
  .brand-text{max-width:170px;font-size:14.2px;}
  .limit-head{display:none;}
  .limit-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 14px;padding:15px 16px;}
  .limit-row span::before{
    content:attr(data-label);
    display:block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;
    color:var(--dim);margin-bottom:3px;
  }
  .flash-timer{margin-left:0;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  body{font-size:15.4px;}
  .grid-4{grid-template-columns:minmax(0,1fr);}
  .steps{grid-template-columns:minmax(0,1fr);}
  .brand-text{max-width:132px;font-size:12.9px;}
  .brand-mark{width:34px;height:34px;font-size:15px;border-radius:10px;}
  .header-actions{gap:7px;}
  .btn-ghost{padding:7px 10px;font-size:12.4px;border-radius:9px;}
  .btn-glow{padding:8px 12px;font-size:12.4px;border-radius:9px;}
  .btn-glow i{display:none;}
  .hero-cta .btn-glow,.hero-cta .btn-outline,.cta-actions .btn-glow,.cta-actions .btn-outline{
    width:100%;justify-content:center;
  }
  .fab-cyber{width:52px;height:52px;font-size:18px;bottom:5.4rem;}
}

/* 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}
<!-- 修复 #nap-rut 左右两栏挤压与单字竖排 BUG -->
<style>
  /* 1. 规范整体左右比例 */
  #nap-rut .split {
    display: grid !important;
    grid-template-columns: 1fr 1.15fr !important; /* 左图占46%，右侧步骤占54% */
    gap: 40px !important;
    align-items: center !important;
  }

  /* 2. 核心修正：取消 .steps 的横向 4 列挤压，改为垂直 4 步列表 */
  #nap-rut .steps {
    display: flex !important;
    flex-direction: column !important; /* 4个步骤自上而下纵向排布，拒绝横向挤扁 */
    gap: 16px !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  /* 3. 单个步骤卡片：横向展开（左边数字 1/2/3/4，右边放完整文字） */
  #nap-rut .step {
    display: flex !important;
    flex-direction: row !important;
    align-items: flex-start !important;
    gap: 16px !important;
    width: 100% !important;
    padding: 16px 20px !important;
    border-radius: 14px !important;
    background: rgba(14, 25, 45, 0.75) !important;
    border: 1px solid rgba(56, 189, 248, 0.2) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4) !important;
    box-sizing: border-box !important;
  }

  /* 4. 数字徽章固定大小，不被压扁 */
  #nap-rut .step .step-num {
    flex-shrink: 0 !important;
    width: 40px !important;
    height: 40px !important;
    border-radius: 10px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: linear-gradient(135deg, #2563EB, #38BDF8) !important;
    color: #ffffff !important;
    font-size: 16px !important;
    font-weight: 800 !important;
    box-shadow: 0 0 14px rgba(56, 189, 248, 0.4) !important;
    margin: 0 !important;
  }

  /* 5. 右侧文字区域：占满剩余宽度，恢复正常换行 */
  #nap-rut .step > div:last-child {
    flex: 1 1 auto !important;
    min-width: 0 !important;
  }

  #nap-rut .step h3 {
    font-size: 15.5px !important;
    font-weight: 700 !important;
    color: #ffffff !important;
    margin: 0 0 4px 0 !important;
    line-height: 1.4 !important;
    white-space: normal !important;
    word-break: normal !important;
    text-align: left !important;
  }

  #nap-rut .step p {
    font-size: 13.5px !important;
    color: #94a3b8 !important;
    margin: 0 !important;
    line-height: 1.55 !important;
    white-space: normal !important;
    word-break: normal !important;
    text-align: left !important;
  }

  /* 6. 移动端/平板自适应（小于 992px 时图片在上，步骤在下） */
  @media (max-width: 992px) {
    #nap-rut .split {
      grid-template-columns: 1fr !important;
      gap: 30px !important;
    }
  }
</style>