/* roulang page: index */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --bg-3:#0f2350;
  --line:rgba(56,189,248,.14);
  --line-2:rgba(56,189,248,.32);
  --brand:#2563EB;
  --brand-l:#3B82F6;
  --cyan:#38BDF8;
  --ice:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22D3EE;
  --gold:#FACC15;
  --rose:#F43F5E;
  --r-sm:10px;
  --r:16px;
  --r-lg:24px;
  --shadow:0 20px 50px -24px rgba(2,8,23,.95);
  --glow:0 0 0 1px rgba(56,189,248,.35), 0 0 32px -8px rgba(56,189,248,.5);
  --container:1200px;
  --nav-h:72px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
html,body{margin:0;padding:0}
html body{
  background:var(--bg-0);
  color:var(--text);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* ============ HEADER ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(3,7,18,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(3,7,18,.96);box-shadow:0 14px 34px -22px rgba(56,189,248,.7)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#030712;
  font-weight:800;font-size:16px;line-height:1;
  box-shadow:0 0 20px rgba(56,189,248,.55);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15.5px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.brand-sub{font-size:9.5px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  padding:9px 14px;border-radius:9px;font-size:14px;font-weight:600;
  color:var(--muted);transition:all .22s ease;white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.1)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.24);box-shadow:inset 0 0 0 1px rgba(56,189,248,.38)}
.nav-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;place-items:center;
  background:rgba(56,189,248,.08);border:1px solid var(--line-2);cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--cyan);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--cyan);border-radius:2px;transition:.25s;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;top:var(--nav-h);left:0;right:0;z-index:119;
  background:rgba(3,7,18,.98);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  padding:12px 22px 22px;display:none;flex-direction:column;
}
.mobile-drawer.open{display:flex}
.mobile-drawer a{
  padding:14px 12px;font-size:15px;font-weight:600;color:var(--muted);
  border-bottom:1px solid var(--line);transition:.2s;
}
.mobile-drawer a:last-child{border-bottom:none}
.mobile-drawer a:hover,.mobile-drawer a.active{color:#fff}
.mobile-drawer a.active{color:var(--cyan)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:11px;padding:11px 19px;
  font-size:14px;font-weight:700;line-height:1;cursor:pointer;
  transition:all .22s ease;text-align:center;white-space:nowrap;
}
.btn-ghost{color:var(--cyan);border-color:rgba(56,189,248,.45);background:transparent}
.btn-ghost:hover{background:rgba(56,189,248,.14);color:#fff;border-color:var(--cyan)}
.btn-solid{
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04101f;
  box-shadow:0 10px 24px -12px rgba(56,189,248,.95);
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 16px 32px -12px rgba(56,189,248,.95)}
.btn-solid:active{transform:translateY(0)}
.btn-outline{background:rgba(56,189,248,.06);border-color:var(--line-2);color:#dbeafe}
.btn-outline:hover{background:rgba(56,189,248,.15);border-color:var(--cyan);color:#fff}
.btn-lg{padding:15px 27px;font-size:15.5px;border-radius:13px}

/* ============ HERO ============ */
.hero{position:relative;padding:calc(var(--nav-h) + 76px) 0 72px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/de68796f68ac7d89.jpg') center/cover no-repeat;opacity:.32}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(3,7,18,.98) 0%,rgba(3,7,18,.9) 45%,rgba(8,18,41,.7) 100%);
}
.hero-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.07) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 35%,#000,transparent 74%);
  mask-image:radial-gradient(ellipse at 50% 35%,#000,transparent 74%);
}
.hero-inner{position:relative;z-index:2;max-width:960px}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;padding:8px 16px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.34);
  font-size:12.5px;font-weight:700;color:#bae6fd;letter-spacing:.02em;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px var(--ok);display:inline-block}
.hero-title{
  font-size:clamp(27px,4.4vw,50px);line-height:1.16;font-weight:800;
  letter-spacing:-.028em;margin:20px 0 20px;color:#fff;
}
.hero-title em{font-style:normal;background:linear-gradient(100deg,#38BDF8,#60A5FA);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:16.5px;color:#cbd5e1;max-width:880px;line-height:1.72}
.check-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.check-item{
  display:inline-flex;align-items:center;gap:9px;padding:9px 16px;border-radius:999px;
  background:rgba(56,189,248,.07);border:1px solid rgba(56,189,248,.26);
  font-size:13.5px;font-weight:600;color:#dbeafe;
}
.check-dot{
  width:17px;height:17px;border-radius:50%;display:grid;place-items:center;flex-shrink:0;
  background:linear-gradient(135deg,#2563EB,#22D3EE);color:#04101f;font-size:11px;font-weight:800;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-top:32px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:38px;margin-top:42px;padding-top:28px;border-top:1px solid var(--line);
}
.hero-stat b{display:block;font-size:26px;font-weight:800;color:#fff;line-height:1.1;letter-spacing:-.02em}
.hero-stat span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.09em;font-weight:600}

/* ============ SECTION ============ */
.section{padding:78px 0;position:relative}
.section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:800px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:11.5px;font-weight:800;
  letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);margin-bottom:13px;
}
.h2{font-size:clamp(22px,3vw,33px);line-height:1.25;font-weight:800;letter-spacing:-.022em;color:#fff;margin-bottom:14px}
.h3{font-size:18.5px;font-weight:700;line-height:1.4;color:#fff;margin-bottom:9px}
.lead{font-size:15.5px;color:var(--muted);line-height:1.72;max-width:820px}
.body-text{font-size:15px;color:#cbd5e1;line-height:1.72}

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

/* ============ CARD ============ */
.card{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,rgba(11,26,58,.88),rgba(8,18,41,.96));
  border:1px solid var(--line);border-radius:var(--r);padding:26px;
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card::after{
  content:"";position:absolute;top:0;left:0;width:100%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(56,189,248,.6),transparent);
  opacity:0;transition:opacity .3s ease;
}
.card:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:var(--glow)}
.card:hover::after{opacity:1}
.card-title{font-size:16.5px;font-weight:700;color:#fff;margin-bottom:9px;line-height:1.4}
.card-text{font-size:14px;color:var(--muted);line-height:1.68}
.icon-box{
  width:47px;height:47px;border-radius:13px;display:grid;place-items:center;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.3);
  color:var(--cyan);font-size:19px;font-weight:800;margin-bottom:16px;
}

/* ============ METER ============ */
.meter{display:flex;flex-direction:column;gap:22px}
.meter-item{display:flex;flex-direction:column;gap:9px}
.meter-top{display:flex;justify-content:space-between;align-items:baseline;gap:14px}
.meter-label{font-size:14.5px;font-weight:600;color:#e2e8f0}
.meter-value{font-size:13.5px;font-weight:800;color:var(--cyan);white-space:nowrap}
.meter-track{height:8px;border-radius:99px;background:rgba(148,163,184,.14);overflow:hidden}
.meter-fill{
  height:100%;width:0;border-radius:99px;
  background:linear-gradient(90deg,#2563EB,#38BDF8);
  transition:width 1.2s cubic-bezier(.2,.8,.2,1);
}
.meter-fill.warm{background:linear-gradient(90deg,#1D4ED8,#22D3EE)}

.stat-block{padding-left:18px;border-left:2px solid rgba(56,189,248,.45)}
.stat-block b{font-size:29px;font-weight:800;display:block;line-height:1.1;color:#fff;letter-spacing:-.02em}
.stat-block span{font-size:13px;color:var(--muted)}

/* ============ TOC ============ */
.toc{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px;
  border-top:1px solid var(--line);
}
.toc a{
  display:flex;align-items:center;gap:14px;padding:15px 4px;
  border-bottom:1px solid var(--line);color:#cbd5e1;font-size:14.5px;
  font-weight:600;transition:all .22s ease;
}
.toc a:hover{color:var(--cyan);padding-left:10px}
.toc-num{
  font-size:11.5px;font-weight:800;color:var(--dim);letter-spacing:.1em;
  font-variant-numeric:tabular-nums;flex-shrink:0;
}

/* ============ VALUE LIST ============ */
.value-item{display:flex;gap:16px;padding:22px 0;border-bottom:1px solid var(--line)}
.value-item:last-child{border-bottom:none}
.value-index{
  flex-shrink:0;width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:rgba(37,99,235,.18);border:1px solid rgba(56,189,248,.32);
  font-size:13px;font-weight:800;color:var(--cyan);
}

/* ============ STEPS ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
.step{position:relative;padding:30px 24px 4px 0;border-top:2px solid rgba(56,189,248,.22)}
.step::before{
  content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 14px rgba(56,189,248,.95);
}
.step-num{font-size:11.5px;font-weight:800;letter-spacing:.15em;color:var(--cyan);margin-bottom:10px}
.step-title{font-size:16px;font-weight:700;color:#fff;margin-bottom:8px;line-height:1.4}
.step-text{font-size:13.8px;color:var(--muted);line-height:1.68}

/* ============ SCENARIO ============ */
.scene{
  display:flex;gap:14px;align-items:flex-start;padding:18px 20px;
  background:rgba(8,18,41,.72);border:1px solid var(--line);border-radius:var(--r-sm);
  transition:.22s ease;
}
.scene:hover{border-color:var(--line-2);background:rgba(11,26,58,.9)}
.scene-mark{
  width:26px;height:26px;border-radius:8px;display:grid;place-items:center;flex-shrink:0;
  background:rgba(34,211,238,.14);border:1px solid rgba(34,211,238,.4);
  color:var(--ok);font-size:13px;font-weight:800;margin-top:2px;
}
.scene b{display:block;font-size:14.5px;color:#fff;margin-bottom:5px;font-weight:700}
.scene p{font-size:13.6px;color:var(--muted);line-height:1.65;margin:0}

/* ============ SHOTS ============ */
.shot-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center}
.shot{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-2);
  box-shadow:var(--shadow);position:relative;background:var(--bg-2);
}
.shot img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.shot:hover img{transform:scale(1.04)}
.shot-cap{
  position:absolute;left:0;right:0;bottom:0;padding:16px 18px;
  background:linear-gradient(0deg,rgba(3,7,18,.94),transparent);
  font-size:13px;font-weight:600;color:#e2e8f0;
}
.shot-list{display:flex;flex-direction:column;gap:16px}
.shot-point{display:flex;gap:12px;align-items:flex-start}
.shot-point i{
  width:20px;height:20px;border-radius:6px;flex-shrink:0;margin-top:3px;
  background:linear-gradient(135deg,#2563EB,#38BDF8);display:grid;place-items:center;
  color:#04101f;font-size:11px;font-weight:800;font-style:normal;
}
.shot-point p{font-size:14.2px;color:#cbd5e1;line-height:1.65}

/* ============ CATEGORY ENTRY ============ */
.cat-card{
  display:flex;flex-direction:column;gap:13px;padding:28px;border-radius:var(--r);
  background:linear-gradient(160deg,rgba(37,99,235,.18),rgba(8,18,41,.92));
  border:1px solid var(--line-2);transition:all .25s ease;position:relative;overflow:hidden;
}
.cat-card:hover{transform:translateY(-5px);box-shadow:var(--glow);border-color:var(--cyan)}
.cat-tag{
  display:inline-flex;align-self:flex-start;padding:5px 12px;border-radius:999px;
  background:rgba(56,189,248,.14);border:1px solid rgba(56,189,248,.34);
  font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);
}
.cat-card h3{font-size:18px;font-weight:800;color:#fff;line-height:1.35}
.cat-card p{font-size:14px;color:var(--muted);line-height:1.68}
.cat-more{font-size:13.5px;font-weight:700;color:var(--cyan);margin-top:auto;display:inline-flex;align-items:center;gap:7px}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line);margin-top:22px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:none;text-align:left;cursor:pointer;
  padding:19px 40px 19px 0;font-size:15.2px;font-weight:700;color:#e2e8f0;
  position:relative;transition:color .22s ease;line-height:1.55;
}
.faq-q:hover{color:var(--cyan)}
.faq-q::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--cyan);transition:transform .25s ease;
}
.faq-item.open .faq-q{color:var(--cyan)}
.faq-item.open .faq-q::after{content:"–";transform:translateY(-50%)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 42px 20px 0;font-size:14.3px;color:var(--muted);line-height:1.72}

/* ============ QUOTES ============ */
.quote{
  padding:24px;border-radius:var(--r);background:rgba(8,18,41,.72);
  border:1px solid var(--line);display:flex;flex-direction:column;gap:16px;
  transition:.25s ease;
}
.quote:hover{border-color:var(--line-2);background:rgba(11,26,58,.9)}
.quote p{font-size:14.3px;color:#cbd5e1;line-height:1.72;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;flex-shrink:0;
  background:linear-gradient(135deg,#2563EB,#22D3EE);color:#04101f;font-weight:800;font-size:13.5px;
}
.quote-name{font-size:13.5px;font-weight:700;color:#fff;line-height:1.3}
.quote-role{font-size:11.5px;color:var(--dim)}
.stars{color:var(--gold);font-size:13px;letter-spacing:2px}

/* ============ TIER ============ */
.tier{
  padding:30px;border-radius:var(--r);border:1px solid var(--line);
  background:rgba(8,18,41,.72);display:flex;flex-direction:column;
  transition:.25s ease;
}
.tier:hover{border-color:var(--line-2)}
.tier.featured{
  border-color:rgba(56,189,248,.65);
  background:linear-gradient(180deg,rgba(37,99,235,.24),rgba(8,18,41,.96));
  box-shadow:var(--glow);
}
.tier-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.tier-name{font-size:16px;font-weight:800;color:#fff;letter-spacing:.02em}
.tier-pill{
  font-size:10.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;background:rgba(56,189,248,.16);
  border:1px solid rgba(56,189,248,.4);color:var(--cyan);
}
.tier-limit{font-size:26px;font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.15}
.tier-limit span{display:block;font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:0;margin-top:4px}
.tier-list{display:flex;flex-direction:column;gap:11px;margin-top:22px}
.tier-list li{display:flex;gap:10px;font-size:14px;color:#cbd5e1;line-height:1.6}
.tier-list li i{
  font-style:normal;color:var(--ok);font-weight:800;flex-shrink:0;
}

/* ============ CHANGELOG ============ */
.log-item{
  display:grid;grid-template-columns:132px 1fr;gap:24px;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.log-item:last-child{border-bottom:none}
.log-tag{font-size:11.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan)}
.log-body b{display:block;font-size:15.5px;font-weight:700;color:#fff;margin-bottom:6px}
.log-body p{font-size:14px;color:var(--muted);line-height:1.68}

/* ============ POSTS ============ */
.post-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;
  border-radius:var(--r);background:linear-gradient(180deg,rgba(11,26,58,.85),rgba(8,18,41,.96));
  border:1px solid var(--line);transition:.25s ease;
}
.post-card:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:var(--glow)}
.post-cat{
  align-self:flex-start;font-size:10.5px;font-weight:800;letter-spacing:.11em;
  text-transform:uppercase;color:var(--cyan);padding:5px 11px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.28);
}
.post-title{font-size:16px;font-weight:700;color:#fff;line-height:1.45}
.post-sum{font-size:13.8px;color:var(--muted);line-height:1.68;flex:1}
.post-date{font-size:12px;color:var(--dim);font-weight:600}
.empty-note{
  padding:22px 24px;border-radius:var(--r);border:1px dashed var(--line-2);
  color:var(--muted);font-size:14px;background:rgba(8,18,41,.5);
}
.list-more{display:flex;justify-content:flex-start;margin-top:26px}

/* ============ FORM ============ */
.form-wrap{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13px;font-weight:700;color:var(--muted)}
.field input,.field select{
  width:100%;background:rgba(3,7,18,.72);border:1px solid var(--line-2);
  border-radius:11px;padding:13px 15px;font-size:14.5px;color:#fff;
  outline:none;transition:.2s ease;
}
.field input::placeholder{color:#475569}
.field input:focus,.field select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.form-note{font-size:12.6px;color:var(--dim);line-height:1.65;margin-top:14px}
.form-ok{
  display:none;margin-top:16px;padding:14px 16px;border-radius:11px;
  background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.38);
  font-size:13.6px;color:#a5f3fc;
}
.form-side{display:flex;flex-direction:column;gap:16px}

/* ============ RISK ============ */
.risk{
  display:flex;gap:16px;align-items:flex-start;padding:22px 24px;border-radius:var(--r);
  background:rgba(250,204,21,.06);border:1px solid rgba(250,204,21,.28);
}
.risk strong{font-size:14.5px;color:#fde68a;display:block;margin-bottom:6px}
.risk p{font-size:13.8px;color:#d6d3d1;line-height:1.68;margin:0}

/* ============ FINAL CTA ============ */
.final-cta{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-2);
  background:linear-gradient(120deg,rgba(37,99,235,.28),rgba(8,18,41,.96));
  padding:52px 44px;text-align:center;
}
.final-cta::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/4d2819996a4fe8dc.jpg') center/cover no-repeat;opacity:.14;
}
.final-cta-in{position:relative;z-index:2;max-width:760px;margin:0 auto}
.final-cta h2{font-size:clamp(22px,3vw,32px);font-weight:800;color:#fff;line-height:1.25;letter-spacing:-.022em;margin-bottom:14px}
.final-cta p{font-size:15.5px;color:#cbd5e1;line-height:1.72;margin-bottom:28px}
.final-cta .hero-cta{justify-content:center;margin-top:0}

/* ============ FOOTER ============ */
.site-footer{background:#030712;border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{font-size:13.8px;color:var(--muted);line-height:1.72;max-width:340px}
.footer-title{font-size:12.5px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--muted);transition:.2s ease}
.footer-links a:hover{color:var(--cyan);padding-left:5px}
.footer-links span{font-size:14px;color:var(--muted)}
.age-badge{
  display:inline-grid;place-items:center;width:40px;height:40px;border-radius:12px;
  border:1.5px solid rgba(56,189,248,.5);color:var(--cyan);
  font-size:13px;font-weight:800;margin-bottom:14px;
}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  font-size:12.8px;color:var(--dim);line-height:1.7;
}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:150;
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  border:2px solid transparent;cursor:pointer;opacity:.78;
  background-image:linear-gradient(rgba(3,7,18,.9),rgba(3,7,18,.9)),linear-gradient(135deg,#22D3EE,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:0 0 22px rgba(6,182,212,.5);
  transition:all .28s ease;animation:fabFloat 3.4s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 36px rgba(6,182,212,.85);animation-play-state:paused}
.fab:active{transform:scale(.95) translateY(2px)}
.fab svg{width:24px;height:24px;stroke:#7dd3fc;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .5s ease}
.fab:hover svg{transform:rotate(360deg)}
.fab-dot{
  position:absolute;top:-2px;right:-2px;width:14px;height:14px;border-radius:50%;
  background:var(--rose);border:2px solid #030712;
  box-shadow:0 0 10px rgba(244,63,94,.85);animation:pulseDot 1.7s ease-in-out infinite;
}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@keyframes pulseDot{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.22);opacity:.72}}

/* ============ RESPONSIVE ============ */
@media (max-width:1100px){
  .nav-links{display:none}
  .menu-toggle{display:grid}
}
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .shot-grid{grid-template-columns:1fr}
  .form-wrap{grid-template-columns:1fr;gap:34px}
}
@media (max-width:768px){
  .section{padding:60px 0}
  .hero{padding:calc(var(--nav-h) + 52px) 0 56px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step{padding:26px 0 18px 0}
  .toc{grid-template-columns:1fr}
  .hero-stats{gap:26px}
  .hero-stat b{font-size:22px}
  .log-item{grid-template-columns:1fr;gap:8px}
  .final-cta{padding:38px 24px}
  .footer-grid{grid-template-columns:1fr}
  .card,.post-card,.quote,.tier,.cat-card{padding:22px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .nav-actions .btn{padding:9px 12px;font-size:12.5px;border-radius:9px}
  .brand-name{font-size:13.5px}
  .brand-sub{font-size:8.5px;letter-spacing:.11em}
  .hero-cta .btn{width:100%}
  .hero-stats{flex-direction:column;gap:18px}
  .check-item{font-size:12.6px;padding:8px 13px}
  .fab{left:12px;bottom:78px;width:52px;height:52px}
}

/* roulang page: article */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --bg-3:#0f2350;
  --line:rgba(56,189,248,.14);
  --line-2:rgba(56,189,248,.32);
  --brand:#2563EB;
  --brand-l:#3B82F6;
  --cyan:#38BDF8;
  --ice:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22D3EE;
  --gold:#FACC15;
  --rose:#F43F5E;
  --r-sm:10px;
  --r:16px;
  --r-lg:24px;
  --shadow:0 20px 50px -24px rgba(2,8,23,.95);
  --glow:0 0 0 1px rgba(56,189,248,.35), 0 0 32px -8px rgba(56,189,248,.5);
  --container:1200px;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
html,body{margin:0;padding:0}
html body{
  background:var(--bg-0);
  color:var(--text);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
::selection{background:rgba(56,189,248,.35);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* ============ HEADER ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(3,7,18,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(3,7,18,.96);box-shadow:0 14px 34px -22px rgba(56,189,248,.7)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#030712;
  font-weight:800;font-size:16px;line-height:1;
  box-shadow:0 0 20px rgba(56,189,248,.55);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15.5px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.brand-sub{font-size:9.5px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  padding:9px 14px;border-radius:9px;font-size:14px;font-weight:600;
  color:var(--muted);transition:all .22s ease;white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.1)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.24);box-shadow:inset 0 0 0 1px rgba(56,189,248,.38)}
.nav-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;place-items:center;
  background:rgba(56,189,248,.08);border:1px solid var(--line-2);cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--cyan);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--cyan);border-radius:2px;transition:.25s;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;top:var(--nav-h);left:0;right:0;z-index:119;
  background:rgba(3,7,18,.98);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  padding:12px 22px 22px;display:none;flex-direction:column;
}
.mobile-drawer.open{display:flex}
.mobile-drawer a{
  padding:14px 12px;font-size:15px;font-weight:600;color:var(--muted);
  border-bottom:1px solid var(--line);transition:.2s;
}
.mobile-drawer a:last-child{border-bottom:none}
.mobile-drawer a:hover,.mobile-drawer a.active{color:#fff}
.mobile-drawer a.active{color:var(--cyan)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:11px;padding:11px 19px;
  font-size:14px;font-weight:700;line-height:1;cursor:pointer;
  transition:all .22s ease;text-align:center;white-space:nowrap;
}
.btn-ghost{color:var(--cyan);border-color:rgba(56,189,248,.45);background:transparent}
.btn-ghost:hover{background:rgba(56,189,248,.14);color:#fff;border-color:var(--cyan)}
.btn-solid{
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04101f;
  box-shadow:0 10px 24px -12px rgba(56,189,248,.95);
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 16px 32px -12px rgba(56,189,248,.95)}
.btn-solid:active{transform:translateY(0)}
.btn-outline{background:rgba(56,189,248,.06);border-color:var(--line-2);color:#dbeafe}
.btn-outline:hover{background:rgba(56,189,248,.15);border-color:var(--cyan);color:#fff}
.btn-lg{padding:15px 27px;font-size:15.5px;border-radius:13px}

/* ============ SECTION BASE ============ */
.section{position:relative;padding:76px 0;border-bottom:1px solid var(--line)}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.75),rgba(3,7,18,.95))}
.section:last-of-type{border-bottom:none}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:11.5px;font-weight:800;
  letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,var(--cyan))}
.section-title{
  font-size:clamp(22px,3vw,34px);font-weight:800;line-height:1.25;
  letter-spacing:-.024em;margin:14px 0 14px;color:#fff;
}
.section-desc{font-size:15.5px;color:var(--muted);line-height:1.7;max-width:800px}
.section-head{margin-bottom:38px;max-width:840px}

/* ============ ARTICLE HERO ============ */
.article-hero{position:relative;padding:calc(var(--nav-h) + 46px) 0 62px;overflow:hidden;border-bottom:1px solid var(--line)}
.article-hero .hero-bg{position:absolute;inset:0;background:url('/assets/images/de68796f68ac7d89.jpg') center/cover no-repeat;opacity:.2}
.article-hero .hero-mask{position:absolute;inset:0;background:linear-gradient(115deg,rgba(3,7,18,.99) 0%,rgba(3,7,18,.93) 48%,rgba(8,18,41,.74) 100%)}
.article-hero .hero-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.07) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(ellipse at 55% 30%,#000,transparent 74%);
  mask-image:radial-gradient(ellipse at 55% 30%,#000,transparent 74%);
}
.article-hero .container{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:9px;flex-wrap:wrap;font-size:12.8px;color:var(--dim);margin-bottom:20px}
.crumbs a{color:var(--muted);transition:color .2s}
.crumbs a:hover{color:var(--cyan)}
.crumbs span.sep{color:var(--dim);opacity:.7}
.article-hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:center}
.cat-tag{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:rgba(56,189,248,.11);border:1px solid rgba(56,189,248,.34);
  font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#bae6fd;
}
h1.article-title{
  font-size:clamp(25px,3.6vw,42px);line-height:1.22;font-weight:800;
  letter-spacing:-.028em;color:#fff;margin:18px 0 18px;
}
.article-lead{font-size:16.5px;line-height:1.72;color:#cbd5e1;max-width:640px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;
  background:rgba(8,18,41,.85);border:1px solid var(--line);font-size:12.8px;font-weight:600;color:var(--muted);
}
.meta-chip b{color:#e2e8f0;font-weight:700}
.hero-cover{
  position:relative;border:1px solid var(--line-2);border-radius:var(--r-lg);overflow:hidden;
  background:#081229;box-shadow:var(--shadow);
}
.hero-cover img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,0) 45%,rgba(3,7,18,.82) 100%);
}
.hero-cover figcaption{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:2;
  font-size:13px;font-weight:600;color:#dbeafe;
}
.hero-cover .cover-badge{
  position:absolute;top:16px;left:16px;z-index:2;
  padding:7px 13px;border-radius:9px;font-size:11.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  background:rgba(37,99,235,.9);color:#e0f2fe;box-shadow:0 0 22px rgba(56,189,248,.5);
}

/* ============ SUMMARY STRIP ============ */
.strip{
  display:grid;grid-template-columns:.78fr 1.22fr;gap:40px;align-items:start;
  padding:32px;border:1px solid var(--line-2);border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(11,26,58,.9),rgba(3,7,18,.92));
  box-shadow:var(--shadow);
}
.strip-title{font-size:clamp(19px,2.2vw,25px);font-weight:800;line-height:1.32;color:#fff;margin:12px 0 0}
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;font-size:15px;line-height:1.65;color:#cbd5e1}
.check-list li::before{
  content:"";flex:0 0 18px;height:18px;margin-top:4px;border-radius:6px;
  background:linear-gradient(135deg,#2563EB,#38BDF8);
  box-shadow:0 0 14px rgba(56,189,248,.6);
}

/* ============ ARTICLE BODY ============ */
.article-body{max-width:840px;font-size:16.5px;color:#cbd5e1}
.article-body > * + *{margin-top:18px}
.article-body h2{font-size:clamp(20px,2.4vw,28px);font-weight:800;line-height:1.3;color:#fff;margin-top:40px;letter-spacing:-.02em}
.article-body h3{font-size:19px;font-weight:700;line-height:1.4;color:#e2e8f0;margin-top:28px}
.article-body h4{font-size:17px;font-weight:700;color:#e2e8f0;margin-top:22px}
.article-body p{line-height:1.75;margin:0}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#bae6fd}
.article-body ul,.article-body ol{padding-left:22px;margin:0}
.article-body li{margin-top:9px;line-height:1.72}
.article-body ul li::marker{color:var(--cyan)}
.article-body ol li::marker{color:var(--cyan);font-weight:700}
.article-body img{border-radius:var(--r);border:1px solid var(--line);margin:26px 0;width:100%}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--cyan);
  background:rgba(56,189,248,.07);border-radius:0 var(--r-sm) var(--r-sm) 0;color:#e2e8f0;line-height:1.7;
}
.article-body strong{color:#fff;font-weight:700}
.article-body em{color:#dbeafe}
.article-body hr{border:none;border-top:1px solid var(--line);margin:34px 0}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:14.6px;display:block;overflow-x:auto;white-space:nowrap}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:rgba(37,99,235,.18);color:#fff;font-weight:700}
.article-empty{
  max-width:720px;padding:32px;border:1px dashed var(--line-2);border-radius:var(--r-lg);
  background:rgba(8,18,41,.7);
}
.article-empty h2{font-size:22px;font-weight:800;color:#fff;margin:0 0 12px}
.article-empty p{color:var(--muted);line-height:1.7;margin:0 0 22px}

/* ============ HIGHLIGHTS ============ */
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:52px;align-items:start}
.split-sticky{position:sticky;top:104px}
.hl-item{
  display:grid;grid-template-columns:44px 1fr;gap:16px;padding:22px 0;border-top:1px solid var(--line);
}
.hl-item:last-child{border-bottom:1px solid var(--line)}
.hl-index{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(37,99,235,.16);border:1px solid var(--line-2);
  font-size:14px;font-weight:800;color:var(--cyan);
}
.hl-item h3{font-size:17px;font-weight:700;color:#fff;margin:2px 0 8px}
.hl-item p{font-size:14.8px;color:var(--muted);line-height:1.68;margin:0}

/* ============ PAYMENT ============ */
.pay-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pay-card{
  padding:24px 22px;border-radius:var(--r);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(11,26,58,.9),rgba(3,7,18,.9));
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.pay-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 0 0 1px rgba(56,189,248,.28),0 22px 40px -26px rgba(56,189,248,.85)}
.pay-name{font-size:16.5px;font-weight:800;color:#fff;margin:0 0 6px}
.pay-speed{font-size:12.5px;font-weight:700;color:var(--cyan);letter-spacing:.03em;margin:0 0 12px}
.pay-card p{font-size:14.3px;color:var(--muted);line-height:1.66;margin:0}
.tag{
  display:inline-flex;align-items:center;padding:5px 11px;border-radius:999px;
  font-size:11px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;
}
.tag-hot{background:rgba(244,63,94,.16);color:#fda4af;border:1px solid rgba(244,63,94,.4)}
.tag-cyan{background:rgba(34,211,238,.14);color:#a5f3fc;border:1px solid rgba(34,211,238,.36)}
.pay-card .tag{margin-bottom:12px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px}
.stat{
  padding:20px 22px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:rgba(8,18,41,.72);
}
.stat b{display:block;font-size:clamp(20px,2.4vw,26px);font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.2}
.stat span{display:block;margin-top:6px;font-size:12.8px;color:var(--muted);letter-spacing:.02em}

/* ============ SECURITY ============ */
.secure-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:48px;align-items:center}
.secure-media{position:relative;border:1px solid var(--line-2);border-radius:var(--r-lg);overflow:hidden;background:#081229;box-shadow:var(--shadow)}
.secure-media img{width:100%;aspect-ratio:4/3;object-fit:cover;opacity:.9}
.secure-media .media-caption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 20px;
  background:linear-gradient(180deg,rgba(3,7,18,0),rgba(3,7,18,.92));
  font-size:13px;font-weight:600;color:#dbeafe;
}
.secure-list{list-style:none;margin:26px 0 0;padding:0;display:grid;gap:20px}
.secure-list li{padding-left:22px;position:relative}
.secure-list li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;
  background:linear-gradient(135deg,#22D3EE,#2563EB);box-shadow:0 0 12px rgba(34,211,238,.8);
}
.secure-list h3{font-size:16.5px;font-weight:700;color:#fff;margin:0 0 6px}
.secure-list p{font-size:14.6px;color:var(--muted);line-height:1.68;margin:0}

/* ============ STEPS ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step{
  position:relative;padding:26px 24px 26px;border-radius:var(--r);
  border:1px solid var(--line);background:rgba(8,18,41,.72);
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:26px;font-weight:800;letter-spacing:-.03em;
  color:transparent;background:linear-gradient(120deg,#38BDF8,#2563EB);
  -webkit-background-clip:text;background-clip:text;margin-bottom:12px;
}
.step h3{font-size:16.5px;font-weight:700;color:#fff;margin:0 0 9px}
.step p{font-size:14.4px;color:var(--muted);line-height:1.68;margin:0}

/* ============ FAQ ============ */
.faq-list{max-width:900px;display:grid;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r);background:rgba(8,18,41,.66);
  transition:border-color .22s ease,background .22s ease;
}
.faq-item[open]{border-color:var(--line-2);background:rgba(11,26,58,.78)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:16px;font-weight:700;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:700;color:var(--cyan);
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 22px 20px;margin:0;font-size:14.8px;color:var(--muted);line-height:1.72}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border:1px solid var(--line-2);border-radius:var(--r-lg);
  padding:44px 40px;background:linear-gradient(120deg,rgba(11,26,58,.95),rgba(3,7,18,.96));
  box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.32),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center}
.cta-band h2{font-size:clamp(21px,2.7vw,31px);font-weight:800;line-height:1.28;color:#fff;margin:14px 0 14px;letter-spacing:-.024em}
.cta-band p{color:var(--muted);font-size:15.4px;line-height:1.7;margin:0;max-width:620px}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.cta-actions .btn{width:100%}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.trust-chip{
  padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(8,18,41,.8);
  font-size:12.4px;font-weight:700;color:#cbd5e1;letter-spacing:.03em;
}

/* ============ FOOTER ============ */
.site-footer{background:linear-gradient(180deg,rgba(3,7,18,.98),rgba(8,18,41,.98));border-top:1px solid var(--line);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{font-size:14.2px;color:var(--muted);line-height:1.7;max-width:400px;margin:0}
.footer-title{font-size:13px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:#e2e8f0;margin:0 0 16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a,.footer-links span{font-size:14px;color:var(--muted);transition:color .2s}
.footer-links a:hover{color:var(--cyan)}
.age-badge{
  display:inline-grid;place-items:center;width:46px;height:46px;border-radius:12px;
  border:1px solid rgba(250,204,21,.5);color:var(--gold);font-weight:800;font-size:15px;margin-bottom:16px;
}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.8px;color:var(--dim);line-height:1.6;
}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:110;
  width:56px;height:56px;border-radius:999px;display:grid;place-items:center;
  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;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.78;transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
  animation:fabPulse 3.4s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 32px rgba(56,189,248,.72)}
.fab:active{transform:scale(.95)}
.fab svg{width:24px;height:24px;stroke:#7dd3fc;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.fab-dot{
  position:absolute;top:9px;right:9px;width:10px;height:10px;border-radius:50%;
  background:var(--rose);box-shadow:0 0 10px var(--rose);animation:dotBlink 1.6s infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(6,182,212,.4)}50%{box-shadow:0 0 30px rgba(56,189,248,.7)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.25}}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .nav-links{display:none}
  .menu-toggle{display:grid}
  .article-hero-grid{grid-template-columns:1fr;gap:32px}
  .strip{grid-template-columns:1fr;gap:26px}
  .split{grid-template-columns:1fr;gap:30px}
  .split-sticky{position:static}
  .pay-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .secure-grid{grid-template-columns:1fr;gap:30px}
  .steps{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  :root{--nav-h:66px}
  .section{padding:56px 0}
  .article-hero{padding:calc(var(--nav-h) + 34px) 0 46px}
  .brand-name{font-size:14px;max-width:170px;white-space:normal;line-height:1.2}
  .nav-actions .btn-ghost{display:none}
  .cta-band{padding:32px 24px}
  .strip{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .pay-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .article-lead{font-size:15.4px}
  .meta-chip{font-size:12px;padding:7px 12px}
  .cta-actions{flex-direction:column}
  .fab{bottom:80px}
}

/* roulang page: category1 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --bg-3:#0f2350;
  --line:rgba(56,189,248,.14);
  --line-2:rgba(56,189,248,.32);
  --brand:#2563EB;
  --brand-l:#3B82F6;
  --cyan:#38BDF8;
  --ice:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22D3EE;
  --gold:#FACC15;
  --rose:#F43F5E;
  --r-sm:10px;
  --r:16px;
  --r-lg:24px;
  --shadow:0 20px 50px -24px rgba(2,8,23,.95);
  --glow:0 0 0 1px rgba(56,189,248,.35), 0 0 32px -8px rgba(56,189,248,.5);
  --container:1200px;
  --nav-h:72px;
}

/* ============ BASE ============ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
html,body{margin:0;padding:0}
body{
  background:var(--bg-0);
  color:var(--text);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,h5,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* ============ HEADER ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(3,7,18,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(3,7,18,.96);box-shadow:0 14px 34px -22px rgba(56,189,248,.7)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#030712;
  font-weight:800;font-size:16px;line-height:1;
  box-shadow:0 0 20px rgba(56,189,248,.55);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15.5px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;color:var(--text)}
.brand-sub{font-size:9.5px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  padding:9px 14px;border-radius:9px;font-size:14px;font-weight:600;
  color:var(--muted);transition:all .22s ease;white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.1)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.24);box-shadow:inset 0 0 0 1px rgba(56,189,248,.38)}
.nav-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;place-items:center;
  background:rgba(56,189,248,.08);border:1px solid var(--line-2);cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--cyan);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--cyan);border-radius:2px;transition:.25s;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;top:var(--nav-h);left:0;right:0;z-index:119;
  background:rgba(3,7,18,.98);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  padding:12px 22px 22px;display:none;flex-direction:column;
}
.mobile-drawer.open{display:flex}
.mobile-drawer a{
  padding:14px 12px;font-size:15px;font-weight:600;color:var(--muted);
  border-bottom:1px solid var(--line);transition:.2s;
}
.mobile-drawer a:last-child{border-bottom:none}
.mobile-drawer a:hover{color:#fff}
.mobile-drawer a.active{color:var(--cyan)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:11px;padding:11px 19px;
  font-size:14px;font-weight:700;line-height:1;cursor:pointer;
  transition:all .22s ease;text-align:center;white-space:nowrap;
}
.btn-ghost{color:var(--cyan);border-color:rgba(56,189,248,.45);background:transparent}
.btn-ghost:hover{background:rgba(56,189,248,.14);color:#fff;border-color:var(--cyan)}
.btn-solid{
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04101f;
  box-shadow:0 10px 24px -12px rgba(56,189,248,.95);
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 16px 32px -12px rgba(56,189,248,.95)}
.btn-solid:active{transform:translateY(0)}
.btn-outline{background:rgba(56,189,248,.06);border-color:var(--line-2);color:#dbeafe}
.btn-outline:hover{background:rgba(56,189,248,.15);border-color:var(--cyan);color:#fff}
.btn-lg{padding:15px 27px;font-size:15.5px;border-radius:13px}

/* ============ HERO ============ */
.hero{position:relative;padding:calc(var(--nav-h) + 68px) 0 72px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/4d2819996a4fe8dc.jpg') center/cover no-repeat;opacity:.28}
.hero-mask{position:absolute;inset:0;background:linear-gradient(102deg,rgba(3,7,18,.98) 0%,rgba(3,7,18,.92) 46%,rgba(8,18,41,.72) 100%)}
.hero-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.07) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(ellipse at 48% 34%,#000,transparent 74%);
  mask-image:radial-gradient(ellipse at 48% 34%,#000,transparent 74%);
}
.hero-wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:start}
.hero-copy{max-width:640px}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;padding:8px 16px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.34);
  font-size:12.5px;font-weight:700;color:#bae6fd;letter-spacing:.02em;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px var(--ok);display:inline-block}
.hero-title{
  font-size:clamp(26px,3.7vw,44px);line-height:1.18;font-weight:800;
  letter-spacing:-.026em;margin:20px 0 18px;color:#fff;
}
.hero-title em{font-style:normal;background:linear-gradient(100deg,#38BDF8,#60A5FA);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:15.5px;color:#cbd5e1;line-height:1.72;max-width:600px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 24px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;
  font-size:12px;font-weight:700;color:#bae6fd;
  background:rgba(56,189,248,.08);border:1px solid var(--line);
}

/* hero stack */
.hero-stack{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding-bottom:8px}
.stack-card{
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(170deg,rgba(11,26,58,.92),rgba(3,7,18,.94));
  padding:22px;transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.stack-card:hover{border-color:var(--line-2);box-shadow:0 24px 50px -32px rgba(56,189,248,.8)}
.stack-main{grid-column:1/-1}
.stack-head{display:flex;align-items:center;gap:9px;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
.dot-ok{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px var(--ok);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.82)}}
.stack-title{font-size:21px;font-weight:800;color:#fff;margin:12px 0 16px;letter-spacing:-.02em}
.stack-list{display:grid;gap:10px}
.stack-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--muted);border-bottom:1px dashed rgba(56,189,248,.14);padding-bottom:9px}
.stack-list li:last-child{border-bottom:none;padding-bottom:0}
.stack-list b{color:var(--ok);font-weight:700}
.stack-side img{border-radius:var(--r-sm);aspect-ratio:16/10;object-fit:cover;border:1px solid var(--line);margin-bottom:14px}
.stack-side h3{font-size:16px;font-weight:700;color:#fff;line-height:1.4;margin-bottom:8px}
.stack-side p{font-size:13px;color:var(--muted);line-height:1.6}
.stack-side.s1{transform:translateY(-12px)}
.stack-side.s2{transform:translateY(12px)}

/* ============ TRUST BAR ============ */
.trust-bar{background:linear-gradient(90deg,rgba(37,99,235,.18),rgba(56,189,248,.06));border-bottom:1px solid var(--line)}
.trust-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px 30px;padding:16px 22px}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#cbd5e1}
.trust-item svg{width:15px;height:15px;color:var(--cyan);flex-shrink:0}

/* ============ SECTIONS ============ */
.section{padding:76px 0;position:relative;border-bottom:1px solid var(--line)}
.section--alt{background:linear-gradient(180deg,rgba(8,18,41,.9),rgba(3,7,18,.97))}
.sec-head{max-width:800px;margin-bottom:42px}
.sec-head--tight{margin-bottom:30px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:11.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--cyan);display:block}
.sec-title{font-size:clamp(22px,2.7vw,34px);font-weight:800;letter-spacing:-.024em;line-height:1.25;color:#fff;margin:14px 0 14px}
.sec-sub{font-size:15.5px;color:var(--muted);line-height:1.7}

/* ============ GRIDS & CARDS ============ */
.grid{display:grid;gap:18px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

.card{
  border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(180deg,rgba(11,26,58,.8),rgba(3,7,18,.9));
  padding:26px 24px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 26px 54px -34px rgba(56,189,248,.85)}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(56,189,248,.1);border:1px solid var(--line-2);color:var(--cyan);margin-bottom:18px;
}
.card-icon svg{width:21px;height:21px}
.card h3{font-size:16.5px;font-weight:700;color:#fff;line-height:1.42;margin-bottom:10px}
.card p{font-size:14px;color:var(--muted);line-height:1.7}
.card-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;font-size:13px;font-weight:800;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04101f;margin-bottom:16px;
}

/* ============ CHECKLIST SPLIT ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-2)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(3,7,18,0) 40%,rgba(3,7,18,.82) 100%);
}
.split-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  padding:9px 15px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(3,7,18,.82);border:1px solid var(--line-2);color:#bae6fd;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.check-list{display:grid;gap:15px;margin-top:26px}
.check-list li{display:flex;gap:13px;align-items:flex-start;font-size:14.5px;color:#cbd5e1;line-height:1.65}
.check-list li svg{width:19px;height:19px;color:var(--ok);flex-shrink:0;margin-top:3px}
.check-list b{color:#fff;font-weight:700}

/* ============ STEPS ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{
  position:relative;padding:26px 22px 24px;border-radius:var(--r);
  border:1px solid var(--line);background:rgba(8,18,41,.6);
  transition:border-color .28s ease,transform .28s ease;
}
.step:hover{border-color:var(--line-2);transform:translateY(-4px)}
.step-num{
  display:grid;place-items:center;width:36px;height:36px;border-radius:11px;
  font-size:14px;font-weight:800;color:var(--cyan);
  background:rgba(56,189,248,.1);border:1px solid var(--line-2);margin-bottom:16px;
}
.step h3{font-size:15.5px;font-weight:700;color:#fff;margin-bottom:9px;line-height:1.45}
.step p{font-size:13.5px;color:var(--muted);line-height:1.65}

/* ============ STATS ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{
  border-radius:var(--r);padding:26px 22px;
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(37,99,235,.18),rgba(3,7,18,.9));
}
.stat-value{
  display:block;font-size:clamp(26px,3vw,38px);font-weight:800;letter-spacing:-.03em;line-height:1.1;
  background:linear-gradient(100deg,#38BDF8,#60A5FA);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{display:block;margin-top:10px;font-size:13px;color:var(--muted);line-height:1.6}

/* ============ COMPARE ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.compare-col{border-radius:var(--r);padding:26px 24px;border:1px solid var(--line)}
.compare-col.good{background:linear-gradient(180deg,rgba(34,211,238,.1),rgba(3,7,18,.92));border-color:rgba(34,211,238,.3)}
.compare-col.bad{background:linear-gradient(180deg,rgba(244,63,94,.09),rgba(3,7,18,.92));border-color:rgba(244,63,94,.28)}
.compare-col h3{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:700;color:#fff;margin-bottom:18px}
.compare-col h3 span{width:9px;height:9px;border-radius:50%;display:inline-block}
.compare-col.good h3 span{background:var(--ok);box-shadow:0 0 12px var(--ok)}
.compare-col.bad h3 span{background:var(--rose);box-shadow:0 0 12px var(--rose)}
.compare-col ul{display:grid;gap:12px}
.compare-col li{font-size:14px;color:#cbd5e1;line-height:1.65;padding-left:20px;position:relative}
.compare-col.good li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--ok)}
.compare-col.bad li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--rose)}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  background:rgba(8,18,41,.55);transition:border-color .25s ease,background .25s ease;
}
.faq-item[open]{border-color:var(--line-2);background:rgba(11,26,58,.72)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:15.5px;font-weight:700;color:#fff;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:700;color:var(--cyan);flex-shrink:0;transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 22px 22px;font-size:14.5px;color:var(--muted);line-height:1.72;max-width:820px}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-2);padding:50px 44px;
  background:linear-gradient(120deg,rgba(37,99,235,.34),rgba(3,7,18,.96) 62%);
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.34),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .65fr;gap:34px;align-items:center}
.cta-band h2{font-size:clamp(21px,2.5vw,31px);font-weight:800;line-height:1.28;letter-spacing:-.024em;color:#fff;margin-bottom:14px}
.cta-band p{font-size:15px;color:#cbd5e1;line-height:1.72;max-width:640px}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:80;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 19px;border-radius:999px;
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(120deg,#38BDF8,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(56,189,248,.45);
  font-size:13px;font-weight:700;color:#e2e8f0;
  opacity:.82;transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
}
.fab:hover{opacity:1;transform:translateY(-3px);box-shadow:0 0 34px rgba(56,189,248,.72)}
.fab:active{transform:translateY(0) scale(.97)}
.fab svg{width:18px;height:18px;color:var(--cyan);flex-shrink:0}
.fab .fab-dot{
  position:absolute;top:-3px;right:-3px;width:12px;height:12px;border-radius:50%;
  background:var(--rose);border:2px solid #030712;animation:pulse 1.6s infinite;
}
.fab{position:fixed}

/* ============ FOOTER ============ */
.site-footer{background:linear-gradient(180deg,rgba(8,18,41,.9),rgba(2,6,16,1));border-top:1px solid var(--line);padding:58px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.15fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{font-size:13.5px;color:var(--muted);line-height:1.75;max-width:420px}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a,.footer-links span{font-size:13.5px;color:var(--muted);transition:color .2s ease}
.footer-links a:hover{color:var(--cyan)}
.age-badge{
  display:inline-grid;place-items:center;min-width:48px;padding:7px 12px;border-radius:8px;
  border:1px solid rgba(244,63,94,.45);color:#fda4af;font-size:13px;font-weight:800;
  background:rgba(244,63,94,.1);margin-bottom:16px;
}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:12.5px;color:var(--dim);line-height:1.7;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .nav-links{display:none}
  .menu-toggle{display:grid}
  .hero-wrap{grid-template-columns:1fr;gap:38px}
  .hero-copy{max-width:none}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
}
@media (max-width:768px){
  .section{padding:58px 0}
  .hero{padding:calc(var(--nav-h) + 44px) 0 54px}
  .split{grid-template-columns:1fr;gap:30px}
  .compare{grid-template-columns:1fr}
  .brand-sub{display:none}
  .cta-band{padding:34px 24px}
  .stack-side.s1,.stack-side.s2{transform:none}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .grid-4,.grid-3,.grid-2,.steps,.stats{grid-template-columns:1fr}
  .hero-stack{grid-template-columns:1fr}
  .brand-name{font-size:14px}
  .btn-lg{padding:13px 20px;font-size:14.5px}
  .hero-cta .btn{width:100%}
  .nav-actions .btn-ghost{padding:10px 14px;font-size:13px}
  .nav-actions .btn-solid{padding:10px 16px;font-size:13px}
  .fab{bottom:20px;left:12px;padding:11px 15px;font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --bg-3:#0f2350;
  --line:rgba(56,189,248,.14);
  --line-2:rgba(56,189,248,.32);
  --brand:#2563EB;
  --brand-l:#3B82F6;
  --cyan:#38BDF8;
  --ice:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22D3EE;
  --gold:#FACC15;
  --rose:#F43F5E;
  --r-sm:10px;
  --r:16px;
  --r-lg:24px;
  --shadow:0 20px 50px -24px rgba(2,8,23,.95);
  --glow:0 0 0 1px rgba(56,189,248,.35), 0 0 32px -8px rgba(56,189,248,.5);
  --container:1200px;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
html,body{margin:0;padding:0}
html body{
  background:var(--bg-0);
  color:var(--text);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.022em;line-height:1.24}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

/* ============ HEADER ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(3,7,18,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(3,7,18,.96);box-shadow:0 14px 34px -22px rgba(56,189,248,.7)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#030712;
  font-weight:800;font-size:16px;line-height:1;
  box-shadow:0 0 20px rgba(56,189,248,.55);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15.5px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.brand-sub{font-size:9.5px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  padding:9px 14px;border-radius:9px;font-size:14px;font-weight:600;
  color:var(--muted);transition:all .22s ease;white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.1)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.24);box-shadow:inset 0 0 0 1px rgba(56,189,248,.38)}
.nav-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;place-items:center;
  background:rgba(56,189,248,.08);border:1px solid var(--line-2);cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--cyan);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--cyan);border-radius:2px;transition:.25s;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;top:var(--nav-h);left:0;right:0;z-index:119;
  background:rgba(3,7,18,.98);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  padding:12px 22px 22px;display:none;flex-direction:column;
}
.mobile-drawer.open{display:flex}
.mobile-drawer a{
  padding:14px 12px;font-size:15px;font-weight:600;color:var(--muted);
  border-bottom:1px solid var(--line);transition:.2s;
}
.mobile-drawer a:last-child{border-bottom:none}
.mobile-drawer a:hover,.mobile-drawer a.active{color:#fff}
.mobile-drawer a.active{color:var(--cyan)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:11px;padding:11px 19px;
  font-size:14px;font-weight:700;line-height:1;cursor:pointer;
  transition:all .22s ease;text-align:center;white-space:nowrap;
}
.btn-ghost{color:var(--cyan);border-color:rgba(56,189,248,.45);background:transparent}
.btn-ghost:hover{background:rgba(56,189,248,.14);color:#fff;border-color:var(--cyan)}
.btn-solid{
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04101f;
  box-shadow:0 10px 24px -12px rgba(56,189,248,.95);
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 16px 32px -12px rgba(56,189,248,.95)}
.btn-solid:active{transform:translateY(0)}
.btn-outline{background:rgba(56,189,248,.06);border-color:var(--line-2);color:#dbeafe}
.btn-outline:hover{background:rgba(56,189,248,.15);border-color:var(--cyan);color:#fff}
.btn-lg{padding:15px 27px;font-size:15.5px;border-radius:13px}

/* ============ HERO (biến thể nội trang) ============ */
.page-hero{position:relative;padding:calc(var(--nav-h) + 66px) 0 66px;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero .hero-bg{position:absolute;inset:0;background:url('/assets/images/4d2819996a4fe8dc.jpg') center/cover no-repeat;opacity:.3}
.page-hero .hero-mask{position:absolute;inset:0;background:linear-gradient(105deg,rgba(3,7,18,.98) 0%,rgba(3,7,18,.92) 48%,rgba(8,18,41,.72) 100%)}
.page-hero .hero-grid-lines{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.07) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 35%,#000,transparent 74%);
  mask-image:radial-gradient(ellipse at 50% 35%,#000,transparent 74%);
}
.hero-flex{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .95fr;gap:46px;align-items:start}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;padding:8px 16px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.34);
  font-size:12.5px;font-weight:700;color:#bae6fd;letter-spacing:.02em;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px var(--ok);display:inline-block}
.hero-title{font-size:clamp(26px,4vw,45px);line-height:1.16;margin:20px 0 18px;color:#fff}
.hero-title em{font-style:normal;background:linear-gradient(100deg,#38BDF8,#60A5FA);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:16.5px;color:#cbd5e1;line-height:1.72;max-width:720px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:999px;
  background:rgba(8,18,41,.72);border:1px solid var(--line);font-size:13px;font-weight:600;color:#cbd5e1;
}
.chip i{color:var(--cyan);font-size:12px}

/* bảng trạng thái an toàn */
.status-panel{
  border:1px solid var(--line-2);border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(11,26,58,.95),rgba(3,7,18,.95));
  padding:24px;box-shadow:var(--shadow);
}
.status-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}
.status-head h2{font-size:16px;color:#e2e8f0}
.status-live{
  display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;color:#67e8f9;
}
.status-live i{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok);display:inline-block}
.status-row{display:flex;align-items:flex-start;gap:13px;padding:14px 0;border-top:1px solid var(--line)}
.status-row:first-of-type{border-top:none}
.status-row .ico{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(56,189,248,.1);border:1px solid var(--line-2);color:var(--cyan);
}
.status-row .txt{flex:1;min-width:0}
.status-row .txt strong{display:block;font-size:14.5px;font-weight:700;color:#f1f5f9}
.status-row .txt span{font-size:13px;color:var(--muted)}
.pill-ok{
  flex:0 0 auto;font-size:11.5px;font-weight:700;padding:5px 11px;border-radius:999px;
  background:rgba(34,211,238,.12);color:#67e8f9;border:1px solid rgba(34,211,238,.35);white-space:nowrap;
}
.status-foot{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--line-2);
  display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);
}
.status-foot i{color:var(--gold)}

/* ============ SECTION ============ */
.section{padding:74px 0;border-bottom:1px solid var(--line);position:relative}
.section.alt{background:linear-gradient(180deg,rgba(8,18,41,.85),rgba(3,7,18,.9))}
.section-head{max-width:820px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:11.5px;font-weight:700;
  letter-spacing:.17em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px;
}
.section-head h2{font-size:clamp(21px,2.7vw,32px);color:#fff}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.7}
.text-block p{color:#cbd5e1;font-size:15.5px;line-height:1.72}
.text-block p + p{margin-top:14px}

/* stats strip */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(3,7,18,.72)}
.stat-strip .stat{padding:26px 24px;border-left:1px solid var(--line)}
.stat-strip .stat:first-child{border-left:none}
.stat .num{font-size:clamp(22px,3vw,30px);font-weight:800;color:#fff;letter-spacing:-.03em}
.stat .num span{color:var(--cyan)}
.stat .lbl{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.5}

/* grids */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}

/* feature blocks */
.feature{
  border:1px solid var(--line);border-radius:var(--r);padding:24px;
  background:linear-gradient(165deg,rgba(11,26,58,.62),rgba(3,7,18,.62));
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.feature:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--glow)}
.feature .f-ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(37,99,235,.18);border:1px solid var(--line-2);color:var(--cyan);font-size:18px;margin-bottom:16px;
}
.feature h3{font-size:16.5px;color:#f1f5f9;margin-bottom:9px}
.feature p{font-size:14.5px;color:var(--muted);line-height:1.68}

/* risk list */
.risk-list{border-left:2px solid rgba(244,63,94,.45);padding-left:22px;display:grid;gap:18px}
.risk-list li{position:relative}
.risk-list li::before{
  content:"";position:absolute;left:-29px;top:8px;width:9px;height:9px;border-radius:50%;
  background:var(--rose);box-shadow:0 0 10px rgba(244,63,94,.8);
}
.risk-list strong{display:block;font-size:15.5px;color:#fecdd3;margin-bottom:4px}
.risk-list span{font-size:14.5px;color:var(--muted);line-height:1.68}
.media-frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-2);
  box-shadow:var(--shadow);
}
.media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.media-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,18,0) 42%,rgba(3,7,18,.85) 100%)}
.media-caption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:13.5px;font-weight:600;color:#e2e8f0;
}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  position:relative;padding:26px 22px 22px;border-radius:var(--r);
  border:1px solid var(--line);background:rgba(8,18,41,.58);
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--cyan);margin-bottom:12px;
}
.step h3{font-size:15.5px;color:#f1f5f9;margin-bottom:9px}
.step p{font-size:14px;color:var(--muted);line-height:1.68}
.step-line{position:relative}
.step-line::after{
  content:"";position:absolute;top:0;left:0;height:2px;width:100%;
  background:linear-gradient(90deg,rgba(56,189,248,.6),rgba(56,189,248,0));
}

/* compare panels */
.alert-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.panel-box{border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;background:rgba(3,7,18,.6)}
.panel-box.warn{border-color:rgba(244,63,94,.35);background:linear-gradient(170deg,rgba(69,10,10,.35),rgba(3,7,18,.75))}
.panel-box.safe{border-color:rgba(34,211,238,.32);background:linear-gradient(170deg,rgba(8,47,73,.4),rgba(3,7,18,.75))}
.panel-box h3{font-size:17.5px;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.panel-box.warn h3 i{color:var(--rose)}
.panel-box.safe h3 i{color:var(--ok)}
.panel-box li{display:flex;gap:11px;font-size:14.5px;color:#cbd5e1;line-height:1.66;padding:9px 0;border-top:1px solid var(--line)}
.panel-box li:first-child{border-top:none}
.panel-box li i{margin-top:5px;font-size:11px}
.panel-box.warn li i{color:var(--rose)}
.panel-box.safe li i{color:var(--ok)}

/* payment badges */
.pay-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.pay-badge{
  display:inline-flex;align-items:center;gap:9px;padding:12px 18px;border-radius:12px;
  background:rgba(11,26,58,.72);border:1px solid var(--line-2);
  font-size:14px;font-weight:700;color:#e0f2fe;transition:.22s;
}
.pay-badge i{color:var(--cyan)}
.pay-badge:hover{background:rgba(56,189,248,.14);transform:translateY(-2px)}
.note-list{margin-top:22px;display:grid;gap:12px}
.note-list li{display:flex;gap:11px;font-size:14.5px;color:#cbd5e1;line-height:1.66}
.note-list li i{color:var(--cyan);margin-top:5px;font-size:12px}

/* channel matrix */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.channel{
  display:block;border:1px solid var(--line);border-radius:var(--r);padding:26px;
  background:linear-gradient(160deg,rgba(11,26,58,.6),rgba(3,7,18,.7));
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.channel:hover{transform:translateY(-5px);border-color:var(--line-2);box-shadow:var(--glow)}
.channel .c-tag{font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
.channel h3{font-size:17px;color:#fff;margin:12px 0 10px}
.channel p{font-size:14.5px;color:var(--muted);line-height:1.68}
.channel .c-link{margin-top:16px;font-size:13.5px;font-weight:700;color:var(--ice);display:inline-flex;align-items:center;gap:8px}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{border:1px solid var(--line);border-radius:var(--r);background:rgba(8,18,41,.56);overflow:hidden}
.faq-item summary{
  cursor:pointer;list-style:none;padding:19px 22px;font-size:15.5px;font-weight:700;color:#f1f5f9;
  display:flex;align-items:center;justify-content:space-between;gap:16px;transition:background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(56,189,248,.07)}
.faq-item summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--cyan);transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.72;border-top:1px solid var(--line);padding-top:16px}

/* CTA + form */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line-2);
  background:linear-gradient(115deg,rgba(37,99,235,.3),rgba(3,7,18,.9) 62%);
  padding:40px;display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.06) 1px,transparent 1px);
  background-size:44px 44px;opacity:.7;pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(20px,2.5vw,30px);color:#fff}
.cta-band p{margin-top:14px;color:#cbd5e1;font-size:15px;line-height:1.7}
.support-form{display:grid;gap:12px;background:rgba(3,7,18,.72);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.support-form label{font-size:12.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.support-form input,.support-form select{
  width:100%;padding:13px 14px;border-radius:11px;background:rgba(8,18,41,.9);
  border:1px solid var(--line-2);color:#f1f5f9;font-size:14.5px;transition:.2s;
}
.support-form input::placeholder{color:var(--dim)}
.support-form input:focus,.support-form select:focus{border-color:var(--cyan);background:rgba(11,26,58,.95);outline:none}
.support-form .form-note{font-size:12.5px;color:var(--dim);line-height:1.6}

/* ============ FOOTER ============ */
.site-footer{background:linear-gradient(180deg,rgba(3,7,18,.96),rgba(8,18,41,.98));border-top:1px solid var(--line);padding:56px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.7}
.footer-title{font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#e2e8f0;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a,.footer-links span{font-size:14px;color:var(--muted);transition:.2s}
.footer-links a:hover{color:var(--cyan)}
.age-badge{
  display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(250,204,21,.5);color:var(--gold);font-weight:800;font-size:14px;margin-bottom:16px;
}
.footer-bottom{
  margin-top:38px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--dim);
}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  min-height:56px;padding:12px 20px 12px 14px;border-radius:999px;
  background:rgba(7,7,13,.82);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.88),rgba(7,7,13,.88)),linear-gradient(120deg,#38BDF8,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 22px rgba(6,182,212,.45);
  opacity:.78;transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
}
.fab:hover{opacity:1;transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.62)}
.fab:active{transform:translateY(0) scale(.97)}
.fab .fab-ico{
  width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04101f;font-size:14px;
  animation:fabPulse 2.6s ease-in-out infinite;
}
.fab .fab-txt{font-size:13px;font-weight:800;color:#e0f2fe;white-space:nowrap}
.fab .fab-dot{
  position:absolute;top:6px;right:10px;width:9px;height:9px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 10px #F43F5E;animation:fabBlink 1.4s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 0 0 rgba(56,189,248,.5)}50%{box-shadow:0 0 0 8px rgba(56,189,248,0)}}
@keyframes fabBlink{0%,100%{opacity:1}50%{opacity:.35}}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .hero-flex{grid-template-columns:1fr;gap:34px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-strip .stat:nth-child(3){border-left:none}
  .stat-strip .stat{border-top:1px solid var(--line)}
  .stat-strip .stat:nth-child(1),.stat-strip .stat:nth-child(2){border-top:none}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .menu-toggle{display:grid}
  .nav-actions .btn-ghost{display:none}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .grid-2,.grid-3,.alert-grid{grid-template-columns:1fr}
  .grid-3{gap:16px}
  .steps{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .brand-sub{display:none}
  .hero-cta .btn{flex:1 1 100%}
}
@media (max-width:520px){
  .container{padding:0 16px}
  :root{--nav-h:64px}
  .stat-strip{grid-template-columns:1fr}
  .stat-strip .stat{border-left:none;border-top:1px solid var(--line)}
  .stat-strip .stat:first-child{border-top:none}
  .grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .brand-name{font-size:13.5px}
  .nav-actions .btn-solid{padding:10px 14px;font-size:13px}
  .cta-band{padding:24px 20px}
  .fab .fab-txt{display:none}
  .fab{padding:12px;border-radius:50%;min-width:56px;justify-content:center}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --bg-3:#0f2350;
  --line:rgba(56,189,248,.14);
  --line-2:rgba(56,189,248,.32);
  --brand:#2563EB;
  --brand-l:#3B82F6;
  --cyan:#38BDF8;
  --ice:#60A5FA;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22D3EE;
  --gold:#FACC15;
  --rose:#F43F5E;
  --r-sm:10px;
  --r:16px;
  --r-lg:24px;
  --shadow:0 20px 50px -24px rgba(2,8,23,.95);
  --glow:0 0 0 1px rgba(56,189,248,.35), 0 0 32px -8px rgba(56,189,248,.5);
  --container:1200px;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
html,body{margin:0;padding:0}
html body{
  background:var(--bg-0);
  color:var(--text);
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
::selection{background:rgba(56,189,248,.35);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* ============ HEADER ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(3,7,18,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(3,7,18,.96);box-shadow:0 14px 34px -22px rgba(56,189,248,.7)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#030712;
  font-weight:800;font-size:16px;line-height:1;
  box-shadow:0 0 20px rgba(56,189,248,.55);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15.5px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.brand-sub{font-size:9.5px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  padding:9px 14px;border-radius:9px;font-size:14px;font-weight:600;
  color:var(--muted);transition:all .22s ease;white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.1)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.24);box-shadow:inset 0 0 0 1px rgba(56,189,248,.38)}
.nav-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;place-items:center;
  background:rgba(56,189,248,.08);border:1px solid var(--line-2);cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--cyan);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--cyan);border-radius:2px;transition:.25s;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;top:var(--nav-h);left:0;right:0;z-index:119;
  background:rgba(3,7,18,.98);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  padding:12px 22px 22px;display:none;flex-direction:column;
}
.mobile-drawer.open{display:flex}
.mobile-drawer a{
  padding:14px 12px;font-size:15px;font-weight:600;color:var(--muted);
  border-bottom:1px solid var(--line);transition:.2s;
}
.mobile-drawer a:last-child{border-bottom:none}
.mobile-drawer a:hover,.mobile-drawer a.active{color:#fff}
.mobile-drawer a.active{color:var(--cyan)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:11px;padding:11px 19px;
  font-size:14px;font-weight:700;line-height:1;cursor:pointer;
  transition:all .22s ease;text-align:center;white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.btn-ghost{color:var(--cyan);border-color:rgba(56,189,248,.45);background:transparent}
.btn-ghost:hover{background:rgba(56,189,248,.14);color:#fff;border-color:var(--cyan)}
.btn-solid{
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04101f;
  box-shadow:0 10px 24px -12px rgba(56,189,248,.95);
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 16px 32px -12px rgba(56,189,248,.95)}
.btn-solid:active{transform:translateY(0)}
.btn-outline{background:rgba(56,189,248,.06);border-color:var(--line-2);color:#dbeafe}
.btn-outline:hover{background:rgba(56,189,248,.15);border-color:var(--cyan);color:#fff}
.btn-lg{padding:15px 27px;font-size:15.5px;border-radius:13px}
.btn-block{width:100%}

/* ============ HERO ============ */
.hero{position:relative;padding:calc(var(--nav-h) + 76px) 0 64px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/de68796f68ac7d89.jpg') center/cover no-repeat;opacity:.32}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(3,7,18,.98) 0%,rgba(3,7,18,.9) 45%,rgba(8,18,41,.72) 100%);
}
.hero-grid-lines{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.07) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 35%,#000,transparent 74%);
  mask-image:radial-gradient(ellipse at 50% 35%,#000,transparent 74%);
}
.hero-inner{position:relative;z-index:2}
.hero-layout{display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:start}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;padding:8px 16px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.34);
  font-size:12.5px;font-weight:700;color:#bae6fd;letter-spacing:.02em;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px var(--ok);display:inline-block}
.hero-title{
  font-size:clamp(27px,4vw,47px);line-height:1.16;font-weight:800;
  letter-spacing:-.028em;margin:20px 0 18px;color:#fff;text-align:left;
}
.hero-title em{font-style:normal;background:linear-gradient(100deg,#38BDF8,#60A5FA);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:16.5px;color:#cbd5e1;max-width:680px;line-height:1.72;margin:0 0 22px;text-align:left}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;
  background:rgba(15,35,80,.6);border:1px solid var(--line);font-size:13px;color:#cbd5e1;font-weight:600;
}
.chip i{color:var(--cyan);font-size:12px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

.flow-panel{
  position:relative;border-radius:var(--r-lg);padding:24px;
  background:linear-gradient(160deg,rgba(11,26,58,.94),rgba(3,7,18,.94));
  border:1px solid var(--line-2);
  box-shadow:var(--shadow),0 0 40px -18px rgba(56,189,248,.55);
}
.flow-panel::before{
  content:"";position:absolute;top:-1px;left:24px;right:24px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,transparent,#38BDF8,transparent);
}
.flow-head{display:flex;align-items:center;gap:9px;font-size:13px;font-weight:700;color:#bae6fd;letter-spacing:.02em}
.flow-dot{width:8px;height:8px;border-radius:50%;background:#22D3EE;box-shadow:0 0 12px #22D3EE;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
.flow-count{font-size:clamp(34px,5vw,48px);font-weight:800;letter-spacing:-.03em;color:#fff;line-height:1.1;margin:16px 0 4px}
.flow-label{font-size:13.5px;color:var(--muted);margin-bottom:16px}
.flow-bar{height:9px;border-radius:999px;background:rgba(56,189,248,.14);overflow:hidden}
.flow-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#2563EB,#38BDF8);box-shadow:0 0 16px rgba(56,189,248,.7)}
.flow-meta{display:flex;justify-content:space-between;gap:10px;margin:12px 0 20px;font-size:12px;color:var(--dim);font-weight:600}
.flow-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}

.hero-stats{
  position:relative;z-index:2;margin-top:52px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
}
.stat{background:rgba(3,7,18,.86);padding:20px 18px;text-align:left}
.stat-value{font-size:24px;font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.2}
.stat-value span{font-size:14px;color:var(--cyan);font-weight:700}
.stat-label{font-size:12.5px;color:var(--muted);margin-top:4px;line-height:1.5}

/* ============ SECTION SYSTEM ============ */
.section{padding:76px 0;position:relative;border-bottom:1px solid var(--line)}
.section.alt{background:linear-gradient(180deg,var(--bg-1),var(--bg-0))}
.section.deep{background:linear-gradient(180deg,var(--bg-0),var(--bg-2) 120%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:800;letter-spacing:.17em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:linear-gradient(90deg,#2563EB,#38BDF8)}
.section-title{
  font-size:clamp(22px,3vw,34px);font-weight:800;letter-spacing:-.025em;
  line-height:1.24;color:#fff;margin:0 0 14px;text-align:left;max-width:860px;
}
.section-sub{font-size:15.5px;color:var(--muted);max-width:760px;line-height:1.72;margin:0 0 34px;text-align:left}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;flex-wrap:wrap;margin-bottom:34px}
.section-head .section-sub{margin-bottom:0}

.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.split{display:grid;grid-template-columns:.95fr 1.05fr;gap:46px;align-items:start}

/* ============ CARDS ============ */
.pay-card{
  position:relative;border-radius:var(--r);padding:22px;
  background:linear-gradient(165deg,rgba(11,26,58,.78),rgba(3,7,18,.9));
  border:1px solid var(--line);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.pay-card:hover{transform:translateY(-5px);border-color:var(--line-2);box-shadow:0 0 0 1px rgba(56,189,248,.28),0 22px 44px -26px rgba(56,189,248,.85)}
.pay-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(56,189,248,.12);border:1px solid var(--line-2);color:var(--cyan);font-size:18px;margin-bottom:14px;
}
.pay-card h3{font-size:16.5px;font-weight:700;margin:0 0 8px;color:#fff;letter-spacing:-.01em}
.pay-card p{font-size:14px;color:var(--muted);margin:0 0 14px;line-height:1.65}
.tag{
  display:inline-block;padding:5px 11px;border-radius:8px;font-size:11.5px;font-weight:700;
  letter-spacing:.04em;background:rgba(56,189,248,.12);color:#bae6fd;border:1px solid var(--line-2);
}
.tag.ok{background:rgba(34,211,238,.12);color:#a5f3fc;border-color:rgba(34,211,238,.34)}
.tag.gold{background:rgba(250,204,21,.12);color:#fde68a;border-color:rgba(250,204,21,.32)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* limits */
.limit-list{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(3,7,18,.6)}
.limit-row{
  display:flex;justify-content:space-between;gap:16px;padding:16px 20px;
  border-bottom:1px solid var(--line);font-size:14.5px;
}
.limit-row:last-child{border-bottom:none}
.limit-row .label{color:var(--muted);font-weight:600}
.limit-row .value{color:#fff;font-weight:700;text-align:right}
.limit-row .value em{font-style:normal;color:var(--cyan)}
.note-box{
  margin-top:20px;padding:16px 18px;border-radius:var(--r-sm);
  background:rgba(37,99,235,.1);border:1px solid var(--line-2);font-size:13.5px;color:#cbd5e1;line-height:1.65;
}

/* process */
.step-panel{
  border-radius:var(--r-lg);padding:26px;border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(11,26,58,.74),rgba(3,7,18,.9));
}
.step-panel h3{font-size:18px;font-weight:800;margin:0 0 6px;color:#fff}
.step-panel .panel-sub{font-size:13.5px;color:var(--muted);margin:0 0 20px}
.step{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line)}
.step:first-of-type{border-top:none;padding-top:0}
.step-num{
  flex:0 0 32px;width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2563EB,#38BDF8);color:#04101f;font-weight:800;font-size:14px;
  box-shadow:0 8px 20px -12px rgba(56,189,248,.95);
}
.step-body strong{display:block;font-size:14.5px;color:#fff;font-weight:700;margin-bottom:3px}
.step-body span{font-size:13.5px;color:var(--muted);line-height:1.6}

/* scenarios */
.scene-card{
  border-radius:var(--r);padding:22px;border:1px solid var(--line);
  background:rgba(8,18,41,.62);transition:border-color .25s ease,transform .25s ease;
}
.scene-card:hover{border-color:var(--line-2);transform:translateY(-4px)}
.scene-card h3{font-size:16px;font-weight:700;color:#fff;margin:0 0 9px}
.scene-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.68}
.scene-icon{color:var(--cyan);font-size:17px;margin-bottom:12px;display:block}

/* security */
.sec-list{list-style:none;margin:0;padding:0}
.sec-list li{display:flex;gap:13px;padding:13px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:#cbd5e1;line-height:1.65}
.sec-list li:last-child{border-bottom:none}
.sec-list i{color:var(--ok);margin-top:4px;font-size:14px}
.sec-list strong{color:#fff;font-weight:700}
.media-frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-2);
  box-shadow:var(--shadow);
}
.media-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.media-badge{
  position:absolute;left:16px;bottom:16px;display:inline-flex;align-items:center;gap:8px;
  padding:10px 15px;border-radius:11px;background:rgba(3,7,18,.86);
  border:1px solid var(--line-2);font-size:12.5px;font-weight:700;color:#bae6fd;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}

/* reviews */
.review-card{
  border-radius:var(--r);padding:22px;border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(11,26,58,.7),rgba(3,7,18,.88));
  display:flex;flex-direction:column;gap:14px;
}
.review-stars{color:var(--gold);font-size:13px;letter-spacing:2px}
.review-text{font-size:14.5px;color:#cbd5e1;line-height:1.7;margin:0}
.review-who{display:flex;align-items:center;gap:11px;border-top:1px solid var(--line);padding-top:14px}
.review-avatar{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:14px;
  background:rgba(56,189,248,.14);color:var(--cyan);border:1px solid var(--line-2);
}
.review-name{font-size:14px;font-weight:700;color:#fff;line-height:1.3}
.review-city{font-size:12px;color:var(--dim)}

/* faq */
.faq-wrap{max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-sm);background:rgba(8,18,41,.55);
  margin-bottom:12px;overflow:hidden;transition:border-color .22s ease,background .22s ease;
}
.faq-item[open]{border-color:var(--line-2);background:rgba(11,26,58,.7)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:17px 20px;font-size:15px;font-weight:700;color:#fff;
  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;color:var(--cyan);font-size:12px;transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{margin:0;padding:0 20px 18px;font-size:14.5px;color:var(--muted);line-height:1.72}

/* news */
.news-card{
  border-radius:var(--r);padding:20px;border:1px solid var(--line);
  background:rgba(3,7,18,.72);display:flex;flex-direction:column;gap:10px;
  transition:transform .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-2)}
.news-meta{display:flex;justify-content:space-between;gap:10px;font-size:11.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}
.news-cat{color:var(--cyan)}
.news-date{color:var(--dim)}
.news-title{font-size:16px;font-weight:700;line-height:1.45;margin:0}
.news-title a:hover{color:var(--cyan)}
.news-excerpt{font-size:13.5px;color:var(--muted);margin:0;line-height:1.66;flex:1}
.news-more{font-size:13px;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:7px}
.news-more::after{content:"\f061";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px}
.news-empty{
  padding:26px;border:1px dashed var(--line-2);border-radius:var(--r);color:var(--muted);font-size:14.5px;
}

/* final cta */
.cta-final{position:relative;overflow:hidden;padding:82px 0;border-bottom:none}
.cta-bg{position:absolute;inset:0;background:url('/assets/images/4d2819996a4fe8dc.jpg') center/cover no-repeat;opacity:.28}
.cta-mask{position:absolute;inset:0;background:linear-gradient(92deg,rgba(3,7,18,.97),rgba(11,26,58,.86))}
.cta-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;
}
.cta-inner h2{font-size:clamp(22px,3vw,33px);font-weight:800;letter-spacing:-.025em;color:#fff;margin:0 0 14px;line-height:1.26}
.cta-inner p{font-size:15.5px;color:#cbd5e1;line-height:1.72;margin:0 0 24px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-panel{
  border-radius:var(--r-lg);padding:22px;border:1px solid var(--line-2);
  background:rgba(3,7,18,.82);display:flex;flex-direction:column;gap:12px;
}
.cta-panel .row{display:flex;justify-content:space-between;font-size:13.5px;color:var(--muted);border-bottom:1px dashed var(--line);padding-bottom:10px}
.cta-panel .row:last-child{border-bottom:none;padding-bottom:0}
.cta-panel .row strong{color:#fff}

/* ============ FOOTER ============ */
.site-footer{background:linear-gradient(180deg,var(--bg-0),#020509);border-top:1px solid var(--line);padding:58px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{font-size:13.5px;color:var(--muted);line-height:1.7;max-width:420px;margin:0}
.footer-title{font-size:13px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:#fff;margin:0 0 15px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a,.footer-links span{font-size:13.5px;color:var(--muted);transition:color .2s ease}
.footer-links a:hover{color:var(--cyan)}
.age-badge{
  display:inline-grid;place-items:center;width:46px;height:46px;border-radius:12px;
  border:1px solid var(--line-2);color:var(--cyan);font-weight:800;font-size:14px;margin-bottom:14px;
  background:rgba(56,189,248,.08);
}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--dim);line-height:1.6;
}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:60;
  display:inline-flex;align-items:center;gap:10px;
  min-width:56px;min-height:56px;padding:0 18px 0 16px;border-radius:999px;
  background:rgba(7,7,13,.82);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.9),rgba(7,7,13,.9)),linear-gradient(120deg,#22D3EE,#2563EB,#38BDF8);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  font-size:13px;font-weight:700;color:#e0f2fe;
  opacity:.85;transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
}
.fab i{color:#22D3EE;font-size:16px;animation:fabPulse 2.4s infinite}
@keyframes fabPulse{0%,100%{opacity:1}50%{opacity:.45}}
.fab:hover{opacity:1;transform:scale(1.05);box-shadow:0 0 30px rgba(6,182,212,.7)}
.fab:active{transform:scale(.96)}
.fab-dot{
  position:absolute;top:-3px;right:-3px;width:12px;height:12px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 10px #F43F5E;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .nav-links{display:none}
  .menu-toggle{display:grid}
  .hero-layout{grid-template-columns:1fr;gap:34px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:30px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
}
@media (min-width:1025px){
  .mobile-drawer{display:none !important}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .hero{padding:calc(var(--nav-h) + 54px) 0 48px}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .flow-actions{grid-template-columns:1fr}
  .section-head{align-items:flex-start}
  .limit-row{flex-direction:column;gap:4px;align-items:flex-start}
  .limit-row .value{text-align:left}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  html body{font-size:15px}
  .container{padding:0 16px}
  .brand-name{font-size:13.5px;white-space:normal;line-height:1.2}
  .brand-sub{font-size:8.5px}
  .nav-actions .btn{padding:9px 12px;font-size:12.5px}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .grid-4{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr}
  .stat{padding:16px}
  .fab{bottom:20px;padding:0 16px}
}