/* roulang page: index */
:root{
  --bg:#030712;
  --bg-soft:#061024;
  --bg-elev:#0B1730;
  --glass:rgba(16,30,60,.55);
  --glass-strong:rgba(11,21,44,.86);
  --line:rgba(96,165,250,.16);
  --line-strong:rgba(56,189,248,.44);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --lime:#A3E635;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22C55E;
  --warn:#F59E0B;
  --radius-s:12px;
  --radius:18px;
  --radius-l:26px;
  --shadow:0 18px 48px -24px rgba(2,8,24,.95);
  --glow:0 0 0 1px rgba(56,189,248,.28),0 0 28px -6px rgba(56,189,248,.5);
  --container:1180px;
  --sp:22px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.68;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--holo);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:rgba(56,189,248,.34);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(3,7,18,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),var(--cyan));
  color:#04101f;font-size:18px;
  box-shadow:0 0 22px -6px rgba(56,189,248,.85);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:11px;color:var(--dim);letter-spacing:.06em;text-transform:uppercase;font-weight:600}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:13.5px;font-weight:600;color:var(--muted);
  white-space:nowrap;transition:.24s ease;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.09)}
.nav-link.is-active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.35)}
.header-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(37,99,235,.12);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--holo);border-radius:2px;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;
  font-size:14px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,color .24s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#03121f;
  box-shadow:0 0 24px -8px rgba(56,189,248,.9);
}
.btn-primary:hover{transform:translateY(-2px);color:#03121f;box-shadow:0 0 36px -6px rgba(56,189,248,1)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{
  color:var(--holo);border-color:var(--line-strong);
  background:rgba(37,99,235,.1);
}
.btn-ghost:hover{background:rgba(56,189,248,.2);color:#fff;transform:translateY(-2px)}
.btn-outline{color:var(--text);border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-outline:hover{border-color:var(--line-strong);background:rgba(56,189,248,.12);color:#fff}
.btn-sm{padding:9px 16px;font-size:13px}

/* ---------- HERO ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:86px 0 78px;
  background:
    radial-gradient(880px 520px at 6% -8%,rgba(56,189,248,.22),transparent 64%),
    radial-gradient(760px 480px at 94% 6%,rgba(37,99,235,.30),transparent 62%),
    linear-gradient(180deg,#030712 0%,#061024 58%,#030712 100%);
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.22;filter:saturate(1.15) blur(1px);
  -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.3) 72%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.3) 72%,transparent 100%);
}
.hero::after{
  content:"";position:absolute;left:-200px;bottom:-340px;
  width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.28),transparent 66%);
  filter:blur(28px);pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.85fr);
  gap:54px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(37,99,235,.16);border:1px solid var(--line-strong);
  font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);
  margin-bottom:22px;
}
.eyebrow i{font-size:11px}
.hero h1{
  font-size:clamp(28px,4.1vw,50px);
  font-weight:800;line-height:1.18;letter-spacing:-.028em;
  margin-bottom:20px;
  background:linear-gradient(120deg,#FFFFFF 0%,#BFE4FF 46%,#38BDF8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:var(--muted);font-size:16px;line-height:1.72;max-width:640px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:999px;
  background:rgba(12,24,48,.72);border:1px solid var(--line);
  font-size:13px;color:#CFE6FF;font-weight:500;
}
.hero-points i{color:var(--lime);font-size:12px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.stat{
  flex:1 1 132px;min-width:132px;
  padding:15px 17px;border-radius:var(--radius-s);
  background:linear-gradient(155deg,rgba(18,34,66,.72),rgba(8,18,41,.5));
  border:1px solid var(--line);
}
.stat strong{display:block;font-size:22px;font-weight:800;color:var(--cyan);letter-spacing:-.02em;line-height:1.2}
.stat span{font-size:11.5px;color:var(--dim);letter-spacing:.05em;text-transform:uppercase;font-weight:600}

/* hash panel */
.hash-panel{
  border-radius:var(--radius-l);padding:24px;
  background:linear-gradient(160deg,rgba(20,38,72,.82),rgba(7,16,36,.88));
  border:1px solid var(--line-strong);
  box-shadow:0 0 0 1px rgba(56,189,248,.12),0 30px 70px -34px rgba(56,189,248,.6);
  backdrop-filter:blur(14px);
}
.hash-panel-head{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);margin-bottom:16px}
.hash-live{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 10px rgba(163,230,53,.9);animation:blip 1.6s infinite}
@keyframes blip{0%,100%{opacity:1}50%{opacity:.35}}
.hash-badge{
  margin-left:auto;padding:4px 11px;border-radius:999px;
  background:rgba(34,197,94,.14);border:1px solid rgba(34,197,94,.4);
  color:#7DE9A5;font-size:10.5px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
}
.hash-code{
  display:block;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12.5px;line-height:1.9;letter-spacing:.045em;word-break:break-all;
  color:#A5E9FF;background:rgba(3,10,24,.75);
  border:1px dashed rgba(56,189,248,.35);border-radius:var(--radius-s);
  padding:14px 15px;margin-bottom:18px;
}
.hash-rows{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.hash-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;padding:10px 13px;border-radius:11px;background:rgba(9,19,40,.72);border:1px solid var(--line)}
.hash-row span{color:var(--dim)}
.hash-row b{color:#DCF3FF;font-weight:600;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px}
.hash-row b.ok{color:#6EE7A4}
.hash-foot{font-size:12px;color:var(--dim);display:flex;align-items:center;gap:8px}
.hash-foot i{color:var(--cyan)}

/* ---------- SECTION BASE ---------- */
.section{padding:74px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,#050d1e 0%,#030712 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{max-width:780px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{
  display:inline-block;margin-bottom:13px;
  font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);padding-left:14px;position:relative;
}
.section-tag::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);
}
.section-head h2{font-size:clamp(23px,3vw,35px);line-height:1.28;margin-bottom:15px;letter-spacing:-.022em}
.section-head p{color:var(--muted);font-size:15.5px;line-height:1.72}
.section-head.center .section-tag{padding-left:0;padding-top:14px}
.section-head.center .section-tag::before{left:50%;top:0;transform:translateX(-50%)}

/* ---------- GRID & CARDS ---------- */
.grid{display:grid;gap:var(--sp)}
.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))}
.glass{
  background:linear-gradient(158deg,rgba(18,34,66,.7),rgba(7,16,36,.62));
  border:1px solid var(--line);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card{padding:26px 24px}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 0 1px rgba(56,189,248,.24),0 26px 54px -28px rgba(56,189,248,.7)}
.card-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(37,99,235,.32),rgba(56,189,248,.16));
  border:1px solid var(--line-strong);color:var(--cyan);font-size:19px;margin-bottom:17px;
}
.card h3{font-size:18px;margin-bottom:10px;line-height:1.45}
.card p{color:var(--muted);font-size:14.5px;line-height:1.7}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  background:rgba(37,99,235,.16);border:1px solid var(--line);
  font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--holo);
}
.chip.warm{background:rgba(245,158,11,.14);border-color:rgba(245,158,11,.34);color:#FCD34D}
.chip.green{background:rgba(34,197,94,.14);border-color:rgba(34,197,94,.34);color:#86EFAC}

/* ---------- ENTRY MATRIX ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.entry-card{
  display:flex;flex-direction:column;gap:12px;
  padding:24px 22px;border-radius:var(--radius);
  background:linear-gradient(158deg,rgba(18,34,66,.7),rgba(7,16,36,.6));
  border:1px solid var(--line);
  color:var(--text);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease,background .28s ease;
}
.entry-card:hover{transform:translateY(-5px);color:var(--text);border-color:var(--line-strong);background:linear-gradient(158deg,rgba(24,46,86,.85),rgba(8,18,41,.7));box-shadow:0 0 0 1px rgba(56,189,248,.28),0 26px 52px -28px rgba(56,189,248,.75)}
.entry-card i{font-size:20px;color:var(--cyan)}
.entry-card strong{font-size:16px;font-weight:700;letter-spacing:-.01em}
.entry-card span{font-size:13px;color:var(--muted);line-height:1.6}
.entry-card .arrow{margin-top:auto;font-size:12px;color:var(--dim);font-weight:600;letter-spacing:.05em;text-transform:uppercase}
.entry-card:hover .arrow{color:var(--cyan)}

/* ---------- FEED ---------- */
.feed-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:26px;align-items:start}
.feed-main{display:flex;flex-direction:column;gap:16px}
.feed-item{
  display:block;padding:20px 22px;border-radius:var(--radius-s);
  background:linear-gradient(155deg,rgba(18,34,66,.62),rgba(7,16,36,.5));
  border:1px solid var(--line);
  color:var(--text);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.feed-item:hover{transform:translateX(5px);color:var(--text);border-color:var(--line-strong);box-shadow:0 0 0 1px rgba(56,189,248,.2),0 22px 44px -30px rgba(56,189,248,.8)}
.feed-item h3{font-size:16.5px;line-height:1.5;margin-bottom:8px}
.feed-item p{font-size:13.5px;color:var(--muted);line-height:1.65;margin-bottom:12px}
.feed-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--dim)}
.feed-date{display:inline-flex;align-items:center;gap:6px}
.feed-aside{padding:24px 22px;border-radius:var(--radius);background:linear-gradient(160deg,rgba(20,38,72,.78),rgba(7,16,36,.72));border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.feed-aside h3{font-size:15px;margin-bottom:16px;letter-spacing:.02em}
.feed-aside .feed-item{padding:14px 0;background:none;border:0;border-bottom:1px solid var(--line);border-radius:0}
.feed-aside .feed-item:last-child{border-bottom:0;padding-bottom:0}
.feed-aside .feed-item:hover{transform:translateX(4px);box-shadow:none}
.feed-aside .feed-item h3{font-size:14.5px;margin-bottom:6px}
.feed-aside .feed-item p{font-size:12.5px;margin-bottom:8px}
.empty-note{padding:22px;border:1px dashed var(--line-strong);border-radius:var(--radius-s);color:var(--muted);font-size:14px;text-align:center}

/* ---------- TOPICS ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.topic-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(16,30,60,.72),rgba(6,14,32,.78));
  color:var(--text);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.topic-card:hover{transform:translateY(-5px);color:var(--text);border-color:var(--line-strong);box-shadow:0 0 0 1px rgba(56,189,248,.26),0 28px 58px -30px rgba(56,189,248,.8)}
.topic-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.topic-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.topic-card:hover .topic-media img{transform:scale(1.06)}
.topic-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,18,.05),rgba(3,7,18,.72))}
.topic-tag{position:absolute;left:13px;top:13px;z-index:2}
.topic-body{padding:18px 19px 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.topic-body h3{font-size:15.5px;line-height:1.5}
.topic-body p{font-size:13px;color:var(--muted);line-height:1.62}
.topic-body .arrow{margin-top:auto;font-size:11.5px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--dim)}
.topic-card:hover .topic-body .arrow{color:var(--cyan)}

/* ---------- DEEP ARTICLE ---------- */
.deep{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.35fr);gap:44px;align-items:start}
.deep-lead{padding:26px 24px;border-radius:var(--radius);background:linear-gradient(160deg,rgba(18,34,66,.72),rgba(7,16,36,.6));border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.deep-lead h2{font-size:clamp(21px,2.5vw,30px);line-height:1.32;margin-bottom:16px;letter-spacing:-.02em}
.deep-lead p{color:var(--muted);font-size:14.5px;line-height:1.75;margin-bottom:16px}
.deep-list{display:flex;flex-direction:column;gap:11px;margin-top:6px}
.deep-list li{display:flex;gap:10px;font-size:13.5px;color:#CFE6FF}
.deep-list i{color:var(--cyan);margin-top:3px;font-size:12px}
.sub-block{padding:22px 0;border-bottom:1px solid var(--line)}
.sub-block:last-child{border-bottom:0;padding-bottom:0}
.sub-block:first-child{padding-top:0}
.sub-block h3{font-size:17.5px;line-height:1.5;margin-bottom:11px;color:#E6F3FF}
.sub-block p{color:var(--muted);font-size:14.5px;line-height:1.75}
.sub-block .marker{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:10px;
  font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);
}

/* ---------- STEPS ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.step{
  position:relative;padding:28px 24px 24px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(18,34,66,.66),rgba(7,16,36,.58));
  border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.step-num{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;font-weight:700;
  background:rgba(56,189,248,.14);border:1px solid var(--line-strong);color:var(--cyan);
  margin-bottom:16px;
}
.step h3{font-size:16.5px;margin-bottom:9px;line-height:1.45}
.step p{font-size:13.5px;color:var(--muted);line-height:1.68}

/* ---------- METRICS ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.metric{
  padding:26px 22px;border-radius:var(--radius);
  background:linear-gradient(155deg,rgba(20,40,76,.7),rgba(6,14,32,.7));
  border:1px solid var(--line);
  text-align:left;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.metric:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 0 1px rgba(56,189,248,.24),0 24px 50px -30px rgba(56,189,248,.8)}
.metric strong{display:block;font-size:34px;font-weight:800;letter-spacing:-.03em;line-height:1.1;color:var(--cyan);margin-bottom:8px}
.metric span{display:block;font-size:13px;color:var(--muted);line-height:1.6}
.metric em{display:block;font-style:normal;margin-top:10px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);font-weight:700}

/* ---------- COMPARE ---------- */
.compare-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:rgba(6,14,32,.6)}
table.compare{width:100%;border-collapse:collapse;min-width:640px}
table.compare th,table.compare td{padding:16px 20px;text-align:left;font-size:14px;border-bottom:1px solid var(--line);vertical-align:top}
table.compare thead th{
  font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);
  background:rgba(37,99,235,.14);font-weight:700;
}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover td{background:rgba(56,189,248,.055)}
table.compare td:first-child{color:#CFE6FF;font-weight:600}
table.compare td.pos{color:#9DE8B8}
table.compare td.neg{color:#E7A9A9}

/* ---------- TIMELINE ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;position:relative}
.tl-item{padding:24px 22px;border-radius:var(--radius);background:linear-gradient(160deg,rgba(16,30,60,.66),rgba(6,14,32,.6));border:1px solid var(--line);transition:transform .28s ease,border-color .28s ease}
.tl-item:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.tl-dot{width:11px;height:11px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px rgba(56,189,248,.9);margin-bottom:15px}
.tl-item h3{font-size:15.5px;margin-bottom:8px;line-height:1.45}
.tl-item p{font-size:13.5px;color:var(--muted);line-height:1.66}

/* ---------- TRUST ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.trust-item{display:flex;gap:14px;padding:22px 20px;border-radius:var(--radius-s);background:rgba(9,19,40,.66);border:1px solid var(--line);transition:border-color .26s ease,background .26s ease}
.trust-item:hover{border-color:var(--line-strong);background:rgba(12,24,50,.8)}
.trust-item i{font-size:19px;color:var(--lime);flex-shrink:0;margin-top:3px}
.trust-item h3{font-size:14.5px;margin-bottom:6px;line-height:1.45}
.trust-item p{font-size:13px;color:var(--muted);line-height:1.62}

/* ---------- QUOTES ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.quote{
  padding:26px 24px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(18,34,66,.66),rgba(7,16,36,.6));
  border:1px solid var(--line);display:flex;flex-direction:column;gap:16px;
  transition:transform .28s ease,border-color .28s ease;
}
.quote:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.quote .stars{color:var(--warn);font-size:12.5px;letter-spacing:2px}
.quote p{font-size:14.5px;color:#D6E7FA;line-height:1.72}
.quote footer{display:flex;align-items:center;gap:11px;margin-top:auto}
.quote .av{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(140deg,var(--blue),var(--cyan));color:#04101f;font-weight:800;font-size:14px}
.quote footer b{display:block;font-size:13.5px;font-weight:700}
.quote footer em{display:block;font-style:normal;font-size:11.5px;color:var(--dim)}

/* ---------- QUICK ANSWERS ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.qa-item{padding:24px 22px;border-radius:var(--radius-s);background:linear-gradient(160deg,rgba(16,30,60,.6),rgba(6,14,32,.56));border:1px solid var(--line);border-left:2px solid var(--line-strong);transition:background .26s ease,border-color .26s ease}
.qa-item:hover{background:rgba(14,28,56,.78);border-left-color:var(--cyan)}
.qa-item h3{font-size:15.5px;margin-bottom:10px;line-height:1.5;display:flex;gap:10px;align-items:flex-start}
.qa-item h3 i{color:var(--cyan);font-size:13px;margin-top:4px}
.qa-item p{font-size:13.8px;color:var(--muted);line-height:1.72}

/* ---------- CONTACT ---------- */
.contact-wrap{
  display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.15fr);gap:0;
  border-radius:var(--radius-l);overflow:hidden;
  border:1px solid var(--line-strong);
  background:linear-gradient(155deg,rgba(16,32,64,.75),rgba(5,12,28,.85));
  box-shadow:0 34px 80px -40px rgba(56,189,248,.6);
}
.contact-info{padding:38px 34px;background:linear-gradient(165deg,rgba(37,99,235,.22),rgba(6,14,32,.5));border-right:1px solid var(--line)}
.contact-info h2{font-size:clamp(21px,2.4vw,28px);line-height:1.35;margin-bottom:14px;letter-spacing:-.02em}
.contact-info p{color:var(--muted);font-size:14.5px;line-height:1.72;margin-bottom:24px}
.contact-list{display:flex;flex-direction:column;gap:14px}
.contact-list li{display:flex;gap:12px;font-size:13.8px;color:#CFE6FF;align-items:flex-start}
.contact-list i{color:var(--cyan);margin-top:4px;font-size:13px}
.contact-form{padding:38px 34px}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field label{font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--dim)}
.field input,.field textarea,.field select{
  width:100%;padding:13px 15px;border-radius:12px;
  background:rgba(3,10,24,.7);border:1px solid var(--line);color:var(--text);
  font-size:14px;transition:border-color .24s ease,box-shadow .24s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#4B5C74}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(56,189,248,.16);
}
.field textarea{min-height:118px;resize:vertical}
.form-note{font-size:12.5px;color:var(--dim);margin-top:12px;line-height:1.6}
.form-msg{margin-top:12px;font-size:13.5px;color:#8BE8B4;min-height:20px}

/* ---------- FOOTER ---------- */
.site-footer{background:linear-gradient(180deg,#030712,#01040C);border-top:1px solid var(--line);padding:60px 0 0;margin-top:10px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:13.5px;line-height:1.72;max-width:340px}
.footer-col h3{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin-bottom:16px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:13.5px;color:var(--muted);line-height:1.6}
.footer-col a{color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-badges{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
.footer-badges span{
  padding:5px 11px;border-radius:8px;font-size:10.5px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  background:rgba(37,99,235,.14);border:1px solid var(--line);color:var(--holo);
}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--dim);
}
.footer-bottom a{color:var(--dim)}
.footer-bottom a:hover{color:var(--cyan)}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:60;
  width:58px;height:58px;border-radius:999px;
  display:grid;place-items:center;
  background-image:linear-gradient(rgba(6,12,26,.92),rgba(6,12,26,.92)),linear-gradient(140deg,#A3E635,#06B6D4);
  background-origin:border-box;background-clip:padding-box,border-box;
  border:1px solid transparent;
  color:#D8F6FF;font-size:21px;
  box-shadow:0 0 22px rgba(6,182,212,.45);
  opacity:.8;transition:transform .28s ease,opacity .28s ease,box-shadow .28s ease;
}
.fab:hover{opacity:1;transform:scale(1.09);color:#EAFBFF;box-shadow:0 0 34px rgba(6,182,212,.75)}
.fab:active{transform:scale(.94)}
.fab-dot{position:absolute;top:9px;right:9px;width:10px;height:10px;border-radius:50%;background:#F43F5E;box-shadow:0 0 0 2px #0B1222;animation:fabPulse 1.8s infinite}
@keyframes fabPulse{0%,100%{opacity:1}50%{opacity:.3}}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1080px){
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:40px}
  .deep{grid-template-columns:minmax(0,1fr);gap:30px}
  .entry-grid,.topic-grid,.metrics,.timeline,.trust-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .feed-layout{grid-template-columns:minmax(0,1fr)}
  .contact-wrap{grid-template-columns:minmax(0,1fr)}
  .contact-info{border-right:0;border-bottom:1px solid var(--line)}
}
@media (max-width:1024px){
  .main-nav{
    display:none;
  }
  .main-nav.open{
    display:flex;flex-direction:column;align-items:stretch;
    position:absolute;top:74px;left:-20px;right:-20px;
    padding:16px 20px 20px;gap:4px;
    background:rgba(3,7,18,.98);
    backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line);
    box-shadow:0 26px 50px -30px rgba(0,0,0,.9);
  }
  .main-nav.open .nav-link{padding:12px 14px;border-radius:12px;font-size:14.5px}
  .nav-toggle{display:flex}
  .header-inner{gap:10px}
}
@media (max-width:860px){
  .grid-3,.grid-2,.steps,.quotes,.qa-grid{grid-template-columns:minmax(0,1fr)}
  .form-row{grid-template-columns:minmax(0,1fr)}
  .section{padding:60px 0}
  .hero{padding:64px 0 58px}
}
@media (max-width:620px){
  .header-actions .btn{padding:9px 13px;font-size:12px}
  .brand-text em{display:none}
  .brand-text strong{font-size:14px}
  .entry-grid,.topic-grid,.metrics,.timeline,.trust-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .hero-stats{gap:10px}
  .stat{flex:1 1 100%}
  .contact-info,.contact-form{padding:28px 22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .fab{bottom:84px;width:54px;height:54px}
}
@media (max-width:420px){
  .header-actions .btn-ghost{display:none}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-soft:#061024;
  --bg-elev:#0B1730;
  --glass:rgba(16,30,60,.55);
  --glass-strong:rgba(11,21,44,.86);
  --line:rgba(96,165,250,.16);
  --line-strong:rgba(56,189,248,.44);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --lime:#A3E635;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22C55E;
  --warn:#F59E0B;
  --radius-s:12px;
  --radius:18px;
  --radius-l:26px;
  --shadow:0 18px 48px -24px rgba(2,8,24,.95);
  --glow:0 0 0 1px rgba(56,189,248,.28),0 0 28px -6px rgba(56,189,248,.5);
  --container:1180px;
  --sp:22px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.68;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--holo);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.26;letter-spacing:-.02em;font-weight:800}
p{margin:0 0 16px}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
: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 20px}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(3,7,18,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),var(--cyan));
  color:#04101f;font-size:18px;
  box-shadow:0 0 22px -6px rgba(56,189,248,.85);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:11px;color:var(--dim);letter-spacing:.06em;text-transform:uppercase;font-weight:600}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:13.5px;font-weight:600;color:var(--muted);
  white-space:nowrap;transition:.24s ease;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.09)}
.nav-link.is-active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.35)}
.header-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(37,99,235,.12);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--holo);border-radius:2px;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;
  font-size:14px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,color .24s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#03121f;
  box-shadow:0 0 24px -8px rgba(56,189,248,.9);
}
.btn-primary:hover{transform:translateY(-2px);color:#03121f;box-shadow:0 0 36px -6px rgba(56,189,248,1)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{color:var(--holo);border-color:var(--line-strong);background:rgba(37,99,235,.1)}
.btn-ghost:hover{background:rgba(56,189,248,.2);color:#fff;transform:translateY(-2px)}
.btn-outline{color:var(--text);border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-outline:hover{border-color:var(--line-strong);background:rgba(56,189,248,.12);color:#fff}
.btn-sm{padding:9px 16px;font-size:13px}

/* ---------- ARTICLE HERO ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding:64px 0 58px;
  background:
    radial-gradient(820px 480px at 4% -12%,rgba(56,189,248,.20),transparent 62%),
    radial-gradient(700px 460px at 96% 0%,rgba(37,99,235,.30),transparent 60%),
    linear-gradient(180deg,#030712 0%,#061024 62%,#030712 100%);
  border-bottom:1px solid var(--line);
}
.article-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.18;filter:saturate(1.1);
  -webkit-mask-image:linear-gradient(180deg,#000,rgba(0,0,0,.25) 78%,transparent);
  mask-image:linear-gradient(180deg,#000,rgba(0,0,0,.25) 78%,transparent);
}
.article-hero-inner{position:relative;z-index:2;max-width:900px}
.breadcrumb{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-size:12.5px;color:var(--dim);margin-bottom:22px;letter-spacing:.02em;
}
.breadcrumb a{color:var(--muted);font-weight:600}
.breadcrumb a:hover{color:var(--cyan)}
.crumb-cat{color:var(--holo);font-weight:600}
.tag-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(37,99,235,.16);border:1px solid var(--line-strong);
  font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);
  margin-bottom:20px;
}
.article-hero h1{
  font-size:clamp(26px,3.6vw,44px);
  line-height:1.24;letter-spacing:-.028em;margin-bottom:18px;
  background:linear-gradient(118deg,#FFFFFF 0%,#C8E6FF 48%,#38BDF8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.article-lead{color:var(--muted);font-size:15.5px;line-height:1.72;margin-bottom:24px;max-width:780px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px}
.article-meta span{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(12,24,48,.78);border:1px solid var(--line);
  font-size:12.5px;color:#BBD7F5;font-weight:500;
}
.article-meta i{color:var(--cyan);font-size:12px}

/* ---------- SECTION BASE ---------- */
.section{padding:64px 0;position:relative}
.section + .section{border-top:1px solid rgba(96,165,250,.09)}
.section-soft{background:linear-gradient(180deg,#030712,#061024 55%,#030712)}
.section-elev{background:linear-gradient(180deg,#050c1c,#0a1428 50%,#050c1c)}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head.is-left{margin-left:0}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:12px;
}
.sec-head h2{font-size:clamp(21px,2.6vw,31px);line-height:1.3;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:15px;margin:0}

/* ---------- METRIC BOARD ---------- */
.metric-board{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:14px;margin-top:-34px;position:relative;z-index:5;
}
.metric{
  background:var(--glass-strong);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px 18px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.metric:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.metric .mv{
  font-size:26px;font-weight:800;letter-spacing:-.03em;
  background:linear-gradient(120deg,#fff,#38BDF8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:block;margin-bottom:6px;
}
.metric .ml{font-size:12.5px;color:var(--muted);line-height:1.5;display:block}

/* ---------- ARTICLE BODY ---------- */
.article-body-wrap{max-width:860px}
.article-content{font-size:16.5px;line-height:1.75;color:#DCE9F8}
.article-content > * + *{margin-top:18px}
.article-content h2{
  font-size:clamp(20px,2.3vw,27px);
  margin-top:42px;margin-bottom:6px;color:#fff;position:relative;padding-left:16px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--cyan),var(--blue));
}
.article-content h3{font-size:18.5px;margin-top:30px;color:#E7F2FF}
.article-content p{margin:0 0 16px;color:#CBDCF0}
.article-content ul,.article-content ol{margin:0 0 18px;padding-left:22px;color:#CBDCF0;list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:9px;line-height:1.7}
.article-content strong{color:#fff;font-weight:700}
.article-content a{color:var(--cyan);text-decoration:underline;text-decoration-color:rgba(56,189,248,.4)}
.article-content img{border-radius:var(--radius);border:1px solid var(--line);margin:22px 0}
.article-content blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--cyan);
  background:rgba(37,99,235,.10);border-radius:0 var(--radius-s) var(--radius-s) 0;
  color:#D6E8FA;font-style:italic;
}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.article-content th,.article-content td{
  border:1px solid var(--line);padding:11px 14px;text-align:left;
}
.article-content th{background:rgba(37,99,235,.18);color:#fff;font-weight:700}
.article-content tr:nth-child(even) td{background:rgba(11,23,48,.5)}
.empty-state{
  background:var(--glass-strong);border:1px dashed var(--line-strong);
  border-radius:var(--radius-l);padding:44px 28px;text-align:left;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:20px}

/* ---------- SPOTLIGHT CARDS ---------- */
.spot-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.spot-card{
  background:linear-gradient(165deg,rgba(16,30,60,.72),rgba(6,16,36,.92));
  border:1px solid var(--line);border-radius:var(--radius-l);
  padding:0;overflow:hidden;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.spot-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow)}
.spot-card img{width:100%;height:168px;object-fit:cover;opacity:.88}
.spot-body{padding:20px 20px 24px}
.spot-body h3{font-size:17px;margin-bottom:10px;color:#fff}
.spot-body p{font-size:14px;color:var(--muted);margin:0}
.spot-index{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--lime);margin-bottom:10px;
}

/* ---------- COMPARE TABLE ---------- */
.compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-l);background:var(--glass-strong)}
table.compare{width:100%;border-collapse:collapse;min-width:620px;font-size:14.5px}
table.compare th,table.compare td{padding:16px 18px;text-align:left;border-bottom:1px solid rgba(96,165,250,.12)}
table.compare thead th{
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);
  background:rgba(37,99,235,.16);font-weight:700;
}
table.compare tbody td{color:#C7DAEE}
table.compare tbody tr:hover td{background:rgba(56,189,248,.07)}
table.compare td:first-child{color:#fff;font-weight:600}
.tag-ok{color:var(--ok);font-weight:700}
.tag-warn{color:var(--warn);font-weight:700}

/* ---------- TIMELINE ---------- */
.timeline{position:relative;padding-left:34px}
.timeline::before{
  content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--cyan),rgba(37,99,235,.25));
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:6px;width:14px;height:14px;border-radius:50%;
  background:var(--bg);border:2px solid var(--cyan);
  box-shadow:0 0 14px -2px rgba(56,189,248,.9);
}
.tl-item h3{font-size:16.5px;margin-bottom:7px;color:#fff}
.tl-item p{font-size:14.5px;color:var(--muted);margin:0}
.tl-time{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--holo);margin-bottom:6px;
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--glass-strong);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--glow)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:15.5px;font-weight:700;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f078";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(180deg)}
.faq-item .faq-body{padding:0 22px 20px;color:var(--muted);font-size:14.5px;line-height:1.72}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border:1px solid var(--line-strong);border-radius:var(--radius-l);
  background:
    radial-gradient(560px 300px at 8% 0%,rgba(56,189,248,.22),transparent 60%),
    linear-gradient(140deg,rgba(9,20,44,.96),rgba(4,10,24,.98));
  padding:44px 40px;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:36px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-panel h2{font-size:clamp(20px,2.4vw,29px);margin-bottom:14px;color:#fff}
.cta-panel p{color:var(--muted);font-size:15px;margin-bottom:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.cta-form{display:grid;gap:12px}
.cta-form label{font-size:12.5px;font-weight:600;color:var(--holo);letter-spacing:.03em}
.cta-form input,.cta-form select{
  width:100%;padding:12px 15px;border-radius:var(--radius-s);
  background:rgba(4,12,28,.9);border:1px solid var(--line);
  color:#fff;font-size:14px;transition:border-color .22s ease,box-shadow .22s ease;
}
.cta-form input::placeholder{color:#5A6B82}
.cta-form input:focus,.cta-form select:focus{
  outline:none;border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(56,189,248,.16);
}
.form-note{font-size:12px;color:var(--dim);margin:2px 0 0}

/* ---------- SECURITY STRIP ---------- */
.assure-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.assure{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(11,23,48,.72);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px;
  transition:border-color .24s ease,transform .24s ease;
}
.assure:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.assure i{
  width:42px;height:42px;flex-shrink:0;border-radius:12px;display:grid;place-items:center;
  background:rgba(37,99,235,.22);color:var(--cyan);font-size:17px;
}
.assure h3{font-size:15px;margin-bottom:6px;color:#fff}
.assure p{font-size:13.5px;color:var(--muted);margin:0}

/* ---------- NOTICE LIST ---------- */
.notice-list{display:grid;gap:12px;max-width:900px}
.notice-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:rgba(11,23,48,.55);border-left:3px solid var(--cyan);
  border-radius:0 var(--radius-s) var(--radius-s) 0;
  padding:14px 18px;font-size:14.5px;color:#C7DAEE;
}
.notice-list i{color:var(--cyan);margin-top:4px;font-size:13px}

/* ---------- FOOTER ---------- */
.site-footer{
  background:linear-gradient(180deg,#030712,#061024);
  border-top:1px solid var(--line);padding:56px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;padding-bottom:34px;border-bottom:1px solid var(--line)}
.footer-brand p{color:var(--muted);font-size:14px;margin:16px 0 18px;max-width:360px;line-height:1.7}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-badges span{
  font-size:11.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
  color:var(--holo);border:1px solid var(--line-strong);background:rgba(37,99,235,.12);
  padding:6px 12px;border-radius:999px;
}
.footer-col h3{font-size:12.5px;text-transform:uppercase;letter-spacing:.09em;color:var(--cyan);margin-bottom:16px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:var(--muted);line-height:1.6}
.footer-col a{color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding-top:22px;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;
  padding:14px;min-width:56px;min-height:56px;
  border-radius:999px;
  background:rgba(7,7,13,.82);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,12,26,.9),rgba(7,12,26,.9)),linear-gradient(120deg,#A3E635,#06B6D4);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:#E2F5FF;font-size:14px;font-weight:700;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.8;transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.fab i{font-size:17px;color:#A3E635}
.fab:hover{opacity:1;transform:translateY(-3px) scale(1.05);color:#fff;box-shadow:0 0 30px rgba(6,182,212,.7)}
.fab:active{transform:scale(.95) translateY(0)}
.fab-dot{
  position:absolute;top:8px;right:9px;width:9px;height:9px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 10px rgba(244,63,94,.9);
  animation:pulse 1.6s infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr}
  .spot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric-board{grid-template-columns:repeat(2,minmax(0,1fr))}
  .assure-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .main-nav{
    position:absolute;top:calc(100% + 12px);right:0;left:auto;
    flex-direction:column;align-items:stretch;gap:4px;
    width:min(320px,92vw);padding:14px;
    background:var(--glass-strong);border:1px solid var(--line-strong);
    border-radius:var(--radius);box-shadow:var(--shadow);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;border-radius:var(--radius-s);font-size:14px}
  .nav-toggle{display:flex;order:3}
  .header-actions{display:none}
  .cta-panel{grid-template-columns:1fr;padding:34px 24px}
}
@media (max-width:768px){
  .article-hero{padding:48px 0 44px}
  .section{padding:48px 0}
  .spot-grid{grid-template-columns:1fr}
  .metric-board{grid-template-columns:1fr 1fr;margin-top:-24px}
  .header-inner{min-height:66px;gap:12px}
  .brand-text strong{font-size:14.5px}
  .brand-text em{font-size:10px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .article-content{font-size:15.5px}
  .fab{bottom:84px;left:12px}
}
@media (max-width:520px){
  .metric-board{grid-template-columns:1fr}
  .cta-actions .btn{width:100%}
  .article-meta{gap:8px}
  .article-meta span{font-size:11.5px;padding:6px 11px}
  .cta-panel{padding:28px 18px;border-radius:var(--radius)}
  .faq-item summary{padding:16px;font-size:14.5px}
  .faq-item .faq-body{padding:0 16px 18px}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-soft:#061024;
  --bg-elev:#0B1730;
  --glass:rgba(16,30,60,.55);
  --glass-strong:rgba(11,21,44,.86);
  --line:rgba(96,165,250,.16);
  --line-strong:rgba(56,189,248,.44);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --lime:#A3E635;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22C55E;
  --warn:#F59E0B;
  --radius-s:12px;
  --radius:18px;
  --radius-l:26px;
  --shadow:0 18px 48px -24px rgba(2,8,24,.95);
  --glow:0 0 0 1px rgba(56,189,248,.28),0 0 28px -6px rgba(56,189,248,.5);
  --container:1180px;
  --sp:22px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.68;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--holo);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.24;letter-spacing:-.02em;font-weight:800}
p{margin:0 0 1em}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
::selection{background:rgba(56,189,248,.35);color:#fff}
: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 20px}

/* ---------------- HEADER ---------------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(3,7,18,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),var(--cyan));
  color:#04101f;font-size:18px;
  box-shadow:0 0 22px -6px rgba(56,189,248,.85);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:11px;color:var(--dim);letter-spacing:.06em;text-transform:uppercase;font-weight:600}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:13.5px;font-weight:600;color:var(--muted);
  white-space:nowrap;transition:.24s ease;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.09)}
.nav-link.is-active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.35)}
.header-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(37,99,235,.12);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--holo);border-radius:2px;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------------- BUTTONS ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;
  font-size:14px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,color .24s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#03121f;
  box-shadow:0 0 24px -8px rgba(56,189,248,.9);
}
.btn-primary:hover{transform:translateY(-2px);color:#03121f;box-shadow:0 0 36px -6px rgba(56,189,248,1)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{color:var(--holo);border-color:var(--line-strong);background:rgba(37,99,235,.1)}
.btn-ghost:hover{background:rgba(56,189,248,.2);color:#fff;transform:translateY(-2px)}
.btn-outline{color:var(--text);border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-outline:hover{border-color:var(--line-strong);background:rgba(56,189,248,.12);color:#fff}
.btn-sm{padding:9px 16px;font-size:13px}
.btn-block{width:100%}

/* ---------------- HERO ---------------- */
.hero{
  position:relative;overflow:hidden;
  padding:74px 0 72px;
  background:
    radial-gradient(880px 520px at 6% -8%,rgba(56,189,248,.22),transparent 64%),
    radial-gradient(760px 480px at 94% 6%,rgba(37,99,235,.30),transparent 62%),
    linear-gradient(180deg,#030712 0%,#061024 58%,#030712 100%);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/91d85984c8d77a72.jpg');
  background-size:cover;background-position:center;
  opacity:.24;filter:saturate(1.15);
  -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.32) 70%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.32) 70%,transparent 100%);
}
.hero::after{
  content:"";position:absolute;left:-200px;bottom:-340px;
  width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.26),transparent 66%);
  filter:blur(28px);pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:52px;align-items:center;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--dim);margin-bottom:18px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--cyan)}
.crumbs i{font-size:9px;opacity:.6}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(37,99,235,.16);border:1px solid var(--line-strong);
  font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);
  margin-bottom:20px;
}
.eyebrow i{font-size:11px}
.hero h1{
  font-size:clamp(28px,4vw,48px);
  font-weight:800;line-height:1.18;letter-spacing:-.028em;
  margin-bottom:18px;
  background:linear-gradient(120deg,#FFFFFF 0%,#BFE4FF 46%,#38BDF8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:var(--muted);font-size:16px;line-height:1.72;max-width:640px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:999px;
  background:rgba(12,24,48,.72);border:1px solid var(--line);
  font-size:13px;color:#CFE6FF;font-weight:500;
}
.hero-points i{color:var(--cyan);font-size:12px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

.hash-panel{
  position:relative;
  border-radius:var(--radius-l);
  padding:26px;
  background:linear-gradient(160deg,rgba(16,32,64,.9),rgba(6,14,32,.92));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.hash-panel::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;
  background:linear-gradient(140deg,rgba(56,189,248,.55),transparent 42%,rgba(37,99,235,.4));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  padding:1px;pointer-events:none;
}
.hash-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.hash-panel-head strong{font-size:14px;letter-spacing:.02em}
.pill-ok{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:11.5px;font-weight:700;
  background:rgba(34,197,94,.14);color:#4ADE80;border:1px solid rgba(34,197,94,.4);
}
.hash-string{
  font-family:"SFMono-Regular",Consolas,"Courier New",monospace;
  font-size:12.5px;line-height:1.6;word-break:break-all;
  padding:14px;border-radius:var(--radius-s);
  background:rgba(2,8,20,.85);border:1px dashed var(--line-strong);
  color:#8EE7FF;margin-bottom:18px;
}
.hash-rows{display:grid;gap:10px}
.hash-row{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:13px}
.hash-row span{color:var(--dim)}
.hash-row b{font-weight:700;color:#D6ECFF}
.hash-foot{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);
}
.hash-foot i{color:var(--cyan)}

/* ---------------- SECTION BASE ---------------- */
.section{padding:66px 0;position:relative}
.section-alt{background:linear-gradient(180deg,#030712,#061024 46%,#030712)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  display:inline-flex;align-items:center;gap:7px;
  font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:12px;
}
.section-head h2{font-size:clamp(22px,2.8vw,34px);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:15.5px;margin:0}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);border:0;margin:0}

/* ---------------- STATS BOARD ---------------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.stat-card{
  padding:22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.stat-num{
  font-size:34px;font-weight:800;letter-spacing:-.03em;line-height:1;
  background:linear-gradient(120deg,#FFFFFF,#38BDF8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:8px;
}
.stat-card h3{font-size:14.5px;margin-bottom:6px;font-weight:700}
.stat-card p{font-size:13px;color:var(--muted);margin:0;line-height:1.6}

/* ---------------- MATRIX / FEATURE CARDS ---------------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.feature-card{
  position:relative;
  padding:24px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(14,28,56,.78),rgba(6,13,30,.86));
  border:1px solid var(--line);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
  overflow:hidden;
}
.feature-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow)}
.feature-card::after{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--blue),var(--cyan));
  opacity:0;transition:opacity .26s ease;
}
.feature-card:hover::after{opacity:1}
.feature-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:rgba(37,99,235,.18);border:1px solid var(--line-strong);
  color:var(--cyan);font-size:17px;margin-bottom:16px;
}
.feature-card h3{font-size:16px;margin-bottom:9px}
.feature-card p{font-size:13.8px;color:var(--muted);margin:0;line-height:1.66}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;font-size:11.5px;font-weight:600;
  background:rgba(56,189,248,.1);border:1px solid var(--line);color:#9CD8FF;
}
.tag-lime{background:rgba(163,230,53,.12);border-color:rgba(163,230,53,.34);color:var(--lime)}
.tag-warn{background:rgba(245,158,11,.12);border-color:rgba(245,158,11,.34);color:#FCD34D}

/* ---------------- SPLIT SCENES ---------------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:center}
.split-media{position:relative;border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.split-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 18px;
  background:linear-gradient(0deg,rgba(3,7,18,.94),transparent);
  font-size:12.5px;color:#CFE6FF;
}
.scene-list{display:grid;gap:14px;margin-top:22px}
.scene-item{
  display:flex;gap:14px;padding:16px 18px;border-radius:var(--radius);
  background:rgba(11,23,48,.6);border:1px solid var(--line);
  transition:border-color .24s ease,transform .24s ease;
}
.scene-item:hover{border-color:var(--line-strong);transform:translateX(4px)}
.scene-item i{color:var(--cyan);font-size:16px;margin-top:4px;flex-shrink:0}
.scene-item h3{font-size:14.5px;margin-bottom:5px}
.scene-item p{font-size:13.2px;color:var(--muted);margin:0;line-height:1.62}

/* ---------------- PROCESS TIMELINE ---------------- */
.steps{display:grid;gap:16px;counter-reset:step}
.step{
  display:grid;grid-template-columns:58px minmax(0,1fr);
  gap:18px;align-items:start;
  padding:20px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  transition:border-color .24s ease,background .24s ease;
}
.step:hover{border-color:var(--line-strong);background:rgba(16,32,64,.68)}
.step-num{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;font-size:17px;color:#04101f;
  background:linear-gradient(140deg,var(--cyan),var(--blue));
  box-shadow:0 0 20px -6px rgba(56,189,248,.8);
}
.step h3{font-size:16px;margin-bottom:7px}
.step p{font-size:13.6px;color:var(--muted);margin:0;line-height:1.65}

/* ---------------- COMPARISON TABLE ---------------- */
.table-wrap{
  border-radius:var(--radius-l);border:1px solid var(--line);
  overflow:hidden;background:rgba(8,17,36,.7);
}
table.compare{width:100%;border-collapse:collapse;font-size:14px}
table.compare th,table.compare td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line)}
table.compare thead th{
  background:rgba(37,99,235,.16);
  font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:#BEDDFF;font-weight:700;
}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover{background:rgba(56,189,248,.06)}
table.compare td:first-child{font-weight:700;color:#E2F1FF}
table.compare td{color:var(--muted)}
.cell-ok{color:#6EE7A8 !important;font-weight:600}
.cell-no{color:#FCA5A5 !important;font-weight:600}

/* ---------------- NEWS / LIST ---------------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.news-card{
  display:flex;flex-direction:column;
  padding:22px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(14,28,56,.78),rgba(6,13,30,.88));
  border:1px solid var(--line);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.news-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow)}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:11.5px;color:var(--dim);margin-bottom:12px}
.news-meta .tag{font-size:11px}
.news-card h3{font-size:15.5px;margin-bottom:10px;line-height:1.45}
.news-card h3 a{color:var(--text)}
.news-card h3 a:hover{color:var(--cyan)}
.news-card p{font-size:13.4px;color:var(--muted);margin:0 0 16px;line-height:1.64}
.news-more{margin-top:auto;font-size:13px;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:7px}
.news-more:hover{gap:11px;color:#fff}
.empty-state{
  text-align:center;padding:46px 24px;border-radius:var(--radius-l);
  border:1px dashed var(--line-strong);background:rgba(8,17,36,.6);
  color:var(--muted);font-size:14.5px;
}
.empty-state i{display:block;font-size:26px;color:var(--dim);margin-bottom:12px}

/* ---------------- TRUST STRIP ---------------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.trust-item{
  padding:20px;border-radius:var(--radius);
  background:rgba(11,23,48,.62);border:1px solid var(--line);
  text-align:left;transition:border-color .24s ease;
}
.trust-item:hover{border-color:var(--line-strong)}
.trust-item i{font-size:19px;color:var(--cyan);margin-bottom:12px;display:block}
.trust-item h3{font-size:14px;margin-bottom:6px}
.trust-item p{font-size:12.8px;color:var(--muted);margin:0;line-height:1.6}

/* ---------------- FAQ ---------------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  border-radius:var(--radius);border:1px solid var(--line);
  background:rgba(11,23,48,.6);overflow:hidden;
  transition:border-color .24s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(14,28,56,.72)}
.faq-item summary{
  cursor:pointer;list-style:none;
  padding:18px 22px;font-size:15px;font-weight:700;color:#E6F2FF;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--cyan);transition:transform .26s ease;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;font-size:14px;color:var(--muted);line-height:1.72}

/* ---------------- CTA FORM ---------------- */
.cta-wrap{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:42px;align-items:center;
  padding:44px;border-radius:var(--radius-l);
  background:
    radial-gradient(600px 300px at 8% 0%,rgba(56,189,248,.18),transparent 60%),
    linear-gradient(160deg,rgba(16,32,64,.9),rgba(5,12,28,.96));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
}
.cta-wrap h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-wrap > div > p{color:var(--muted);font-size:15px;margin-bottom:0}
.cta-form{display:grid;gap:12px}
.cta-form label{font-size:12.5px;font-weight:700;color:#BEDDFF;letter-spacing:.02em}
.cta-form input{
  width:100%;padding:13px 16px;border-radius:var(--radius-s);
  background:rgba(2,8,20,.8);border:1px solid var(--line-strong);
  color:var(--text);font-size:14px;transition:border-color .24s ease,box-shadow .24s ease;
}
.cta-form input::placeholder{color:#5B7characters}
.cta-form input::placeholder{color:#5E7DA3}
.cta-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.form-note{font-size:12px;color:var(--dim);margin:0}

/* ---------------- FAB ---------------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:80;
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(7,7,13,.8);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(9,16,34,.92),rgba(9,16,34,.92)),
    linear-gradient(135deg,var(--cyan),var(--blue));
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--cyan);font-size:19px;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  transition:transform .26s ease,box-shadow .26s ease,color .26s ease;
  animation:fabPulse 3.2s ease-in-out infinite;
}
.fab:hover{transform:scale(1.08);color:#fff;box-shadow:0 0 30px rgba(6,182,212,.75)}
.fab:active{transform:scale(.94)}
.fab .fab-dot{
  position:absolute;top:4px;right:4px;width:11px;height:11px;border-radius:50%;
  background:#EC4899;box-shadow:0 0 0 2px rgba(3,7,18,.9);
  animation:dotBlink 1.6s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 16px rgba(6,182,212,.35)}50%{box-shadow:0 0 28px rgba(6,182,212,.62)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------------- FOOTER ---------------- */
.site-footer{
  margin-top:0;padding:58px 0 26px;
  background:linear-gradient(180deg,#030712,#050B1C);
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0 0 16px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-badges span{
  padding:5px 12px;border-radius:999px;font-size:11.5px;font-weight:600;
  background:rgba(56,189,248,.09);border:1px solid var(--line);color:#9CD8FF;
}
.footer-col h3{font-size:13.5px;letter-spacing:.05em;text-transform:uppercase;color:#BEDDFF;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:13.4px;color:var(--muted);line-height:1.6}
.footer-col a{font-size:13.4px;color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:var(--dim);
}

/* ---------------- RESPONSIVE ---------------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .stats-grid,.trust-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3,.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .split{gap:32px}
  .cta-wrap{padding:34px;gap:30px}
}
@media (max-width:980px){
  .nav-toggle{display:flex}
  .main-nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:14px;margin-left:0;
    background:rgba(5,11,28,.98);
    border:1px solid var(--line-strong);border-radius:var(--radius);
    box-shadow:var(--shadow);
    backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;border-radius:var(--radius-s);font-size:14px}
  .header-actions{margin-left:auto}
  .header-actions .btn-ghost{display:none}
}
@media (max-width:768px){
  .section{padding:52px 0}
  .hero{padding:56px 0 54px}
  .grid-3,.grid-2,.news-grid,.stats-grid,.trust-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .cta-wrap{grid-template-columns:1fr;padding:26px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .step{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:16px}
  .step-num{width:44px;height:44px;font-size:15px;border-radius:12px}
  .table-wrap{overflow-x:auto}
  table.compare{min-width:640px}
}
@media (max-width:520px){
  .container{padding:0 15px}
  .brand-text em{display:none}
  .brand-text strong{font-size:14.5px}
  .hero h1{font-size:26px}
  .hero-lead{font-size:14.6px}
  .btn{padding:11px 18px;font-size:13.2px}
  .hero-actions .btn{width:100%}
  .hash-panel{padding:20px}
  .stat-num{font-size:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-item summary{padding:16px;font-size:14px}
  .faq-body{padding:0 16px 18px;font-size:13.4px}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-soft:#061024;
  --bg-elev:#0B1730;
  --glass:rgba(16,30,60,.55);
  --glass-strong:rgba(11,21,44,.86);
  --line:rgba(96,165,250,.16);
  --line-strong:rgba(56,189,248,.44);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --lime:#A3E635;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22C55E;
  --warn:#F59E0B;
  --radius-s:12px;
  --radius:18px;
  --radius-l:26px;
  --shadow:0 18px 48px -24px rgba(2,8,24,.95);
  --glow:0 0 0 1px rgba(56,189,248,.28),0 0 28px -6px rgba(56,189,248,.5);
  --container:1180px;
  --sp:22px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);color:var(--text);font-size:16px;line-height:1.68;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--holo);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-.02em}
p{margin:0 0 14px}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
: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 20px}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:90;background:rgba(3,7,18,.84);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),var(--cyan));color:#04101f;font-size:18px;
  box-shadow:0 0 22px -6px rgba(56,189,248,.85);flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:11px;color:var(--dim);letter-spacing:.06em;text-transform:uppercase;font-weight:600}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 14px;border-radius:999px;font-size:13.5px;font-weight:600;
  color:var(--muted);white-space:nowrap;transition:.24s ease;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.09)}
.nav-link.is-active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.35)}
.header-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(37,99,235,.12);flex-direction:column;align-items:center;justify-content:center;gap:5px;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--holo);border-radius:2px;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-size:14px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,color .24s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#03121f;box-shadow:0 0 24px -8px rgba(56,189,248,.9)}
.btn-primary:hover{transform:translateY(-2px);color:#03121f;box-shadow:0 0 36px -6px rgba(56,189,248,1)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{color:var(--holo);border-color:var(--line-strong);background:rgba(37,99,235,.1)}
.btn-ghost:hover{background:rgba(56,189,248,.2);color:#fff;transform:translateY(-2px)}
.btn-outline{color:var(--text);border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-outline:hover{border-color:var(--line-strong);background:rgba(56,189,248,.12);color:#fff}
.btn-sm{padding:9px 16px;font-size:13px}
.btn-lg{padding:15px 30px;font-size:15px}
.btn-block{width:100%}

/* ---------- HERO ---------- */
.hero{
  position:relative;overflow:hidden;padding:78px 0 66px;
  background:
    radial-gradient(880px 520px at 6% -8%,rgba(56,189,248,.22),transparent 64%),
    radial-gradient(760px 480px at 94% 6%,rgba(37,99,235,.30),transparent 62%),
    linear-gradient(180deg,#030712 0%,#061024 58%,#030712 100%);
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.2;filter:saturate(1.1) blur(1px);
  -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.3) 72%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.3) 72%,transparent 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.9fr);gap:48px;align-items:start}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:rgba(37,99,235,.16);border:1px solid var(--line-strong);
  font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);margin-bottom:20px;
}
.hero h1{
  font-size:clamp(27px,3.9vw,44px);font-weight:800;line-height:1.2;letter-spacing:-.028em;margin-bottom:18px;
  background:linear-gradient(120deg,#FFFFFF 0%,#BFE4FF 48%,#38BDF8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:var(--muted);font-size:15.5px;line-height:1.72;max-width:640px;margin-bottom:24px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;
  background:rgba(12,24,48,.72);border:1px solid var(--line);font-size:13px;color:#CFE6FF;font-weight:500;
}
.hero-points i{color:var(--cyan);font-size:12px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}

.panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-l);
  padding:24px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow);
}
.panel-title{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);margin-bottom:16px}
.quick-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.quick-item{
  display:block;padding:15px 14px;border-radius:var(--radius-s);
  background:rgba(8,18,38,.72);border:1px solid var(--line);transition:.24s ease;color:var(--text);
}
.quick-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--glow);color:#fff}
.quick-item i{color:var(--cyan);font-size:15px;margin-bottom:8px;display:block}
.quick-item strong{display:block;font-size:13.5px;font-weight:700;margin-bottom:3px}
.quick-item span{font-size:12px;color:var(--dim);line-height:1.5}
.hash-preview{
  margin-top:16px;padding:14px;border-radius:var(--radius-s);
  background:rgba(2,8,22,.85);border:1px dashed rgba(56,189,248,.4);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12.5px;color:var(--lime);word-break:break-all;line-height:1.65;letter-spacing:.02em;
}

/* ---------- SECTION BASE ---------- */
.section{padding:64px 0;position:relative}
.section.alt{background:linear-gradient(180deg,#030712,rgba(6,16,36,.85),#030712);border-top:1px solid rgba(96,165,250,.08);border-bottom:1px solid rgba(96,165,250,.08)}
.section-head{max-width:760px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(56,189,248,.1);border:1px solid var(--line);
  font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px;
}
.section h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;margin-bottom:12px}
.section-sub{color:var(--muted);font-size:15px;line-height:1.7}

/* ---------- METRICS ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.metric{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;transition:.26s ease;
}
.metric:hover{border-color:var(--line-strong);box-shadow:var(--glow);transform:translateY(-3px)}
.metric b{display:block;font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.03em;
  background:linear-gradient(130deg,#fff,#38BDF8);-webkit-background-clip:text;background-clip:text;color:transparent}
.metric span{display:block;margin-top:6px;font-size:13px;color:var(--muted);line-height:1.55}

/* ---------- CARD GRIDS ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;transition:.26s ease;height:100%;
}
.card:hover{border-color:var(--line-strong);box-shadow:var(--glow);transform:translateY(-4px)}
.card-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;margin-bottom:15px;
  background:linear-gradient(140deg,rgba(37,99,235,.35),rgba(56,189,248,.2));
  border:1px solid var(--line-strong);color:var(--cyan);font-size:17px;
}
.card h3{font-size:16.5px;font-weight:700;margin-bottom:9px}
.card p{font-size:14px;color:var(--muted);line-height:1.68;margin:0}
.card-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);margin-bottom:16px}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- SCENARIOS ---------- */
.scene{
  display:flex;gap:16px;padding:20px;border-radius:var(--radius);
  background:rgba(8,18,38,.6);border:1px solid var(--line);transition:.24s ease;
}
.scene:hover{border-color:var(--line-strong);background:rgba(12,26,52,.72)}
.scene-num{
  flex-shrink:0;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-weight:800;font-size:14px;color:#04101f;background:linear-gradient(140deg,var(--cyan),var(--lime));
}
.scene h3{font-size:15.5px;font-weight:700;margin-bottom:6px}
.scene p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.65}

/* ---------- STEPS ---------- */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
.step{
  position:relative;padding:22px 18px 20px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(16,30,60,.7),rgba(6,14,32,.5));
  border:1px solid var(--line);transition:.26s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.step-idx{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12px;font-weight:700;color:var(--cyan);letter-spacing:.12em;margin-bottom:12px;display:block;
}
.step h3{font-size:15px;font-weight:700;margin-bottom:8px}
.step p{font-size:13px;color:var(--muted);margin:0;line-height:1.62}

/* ---------- COMPARE TABLE ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:rgba(6,14,32,.6)}
table.compare{width:100%;border-collapse:collapse;min-width:640px}
table.compare th,table.compare td{padding:15px 18px;text-align:left;font-size:14px;border-bottom:1px solid rgba(96,165,250,.1)}
table.compare thead th{
  background:rgba(37,99,235,.16);color:#fff;font-weight:700;font-size:13px;
  letter-spacing:.03em;text-transform:uppercase;
}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare td:first-child{color:var(--muted)}
table.compare td strong{color:#fff;font-weight:700}
.tag-ok{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:700;background:rgba(34,197,94,.14);color:#4ADE80;border:1px solid rgba(34,197,94,.35)}
.tag-warn{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:700;background:rgba(245,158,11,.14);color:#FCD34D;border:1px solid rgba(245,158,11,.35)}

/* ---------- TRUST ---------- */
.trust{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.trust-item{
  padding:22px;border-radius:var(--radius);background:rgba(8,18,38,.6);
  border:1px solid var(--line);border-left:3px solid var(--cyan);
}
.trust-item h3{font-size:15.5px;font-weight:700;margin-bottom:8px}
.trust-item p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.65}
.trust-item ul{margin-top:12px;display:grid;gap:8px}
.trust-item ul li{display:flex;gap:9px;font-size:13px;color:#CFE6FF;align-items:flex-start}
.trust-item ul li i{color:var(--lime);font-size:11px;margin-top:5px}

/* ---------- POST LIST ---------- */
.post-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.post-card{
  display:flex;flex-direction:column;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:.26s ease;height:100%;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.post-media{width:100%;aspect-ratio:16/10;object-fit:cover;border-bottom:1px solid var(--line)}
.post-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.post-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:11.5px;color:var(--dim);letter-spacing:.04em;text-transform:uppercase;font-weight:600}
.post-card h3{font-size:15.5px;font-weight:700;line-height:1.45}
.post-card h3 a{color:var(--text)}
.post-card h3 a:hover{color:var(--cyan)}
.post-card p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.62}
.list-empty{
  padding:30px 24px;border-radius:var(--radius);border:1px dashed var(--line-strong);
  background:rgba(8,18,38,.5);color:var(--muted);font-size:14px;text-align:center;
}
.list-foot{margin-top:26px;display:flex;justify-content:center}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:900px}
.faq details{
  border:1px solid var(--line);border-radius:var(--radius);background:rgba(8,18,38,.55);
  padding:0 20px;transition:.24s ease;
}
.faq details[open]{border-color:var(--line-strong);background:rgba(12,26,52,.72)}
.faq summary{
  cursor:pointer;list-style:none;padding:17px 0;font-size:15px;font-weight:600;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--cyan);transition:.24s}
.faq details[open] summary::after{content:"\f068"}
.faq .faq-body{padding:0 0 18px;font-size:14px;color:var(--muted);line-height:1.7;border-top:1px solid rgba(96,165,250,.12);padding-top:14px}

/* ---------- CTA FORM ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--radius-l);
  border:1px solid var(--line-strong);
  background:
    radial-gradient(620px 320px at 12% 0%,rgba(56,189,248,.2),transparent 66%),
    linear-gradient(140deg,rgba(11,23,48,.94),rgba(4,10,26,.96));
  padding:40px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:36px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-panel h2{font-size:clamp(22px,2.5vw,30px);font-weight:800;margin-bottom:12px}
.cta-panel p{color:var(--muted);font-size:14.5px;margin-bottom:0}
.check-form{display:grid;gap:12px}
.check-form label{font-size:12.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--cyan)}
.check-row{display:flex;gap:10px;flex-wrap:wrap}
.check-row input{
  flex:1 1 240px;min-width:0;padding:13px 16px;border-radius:999px;
  background:rgba(3,8,22,.85);border:1px solid var(--line);color:var(--text);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13.5px;letter-spacing:.02em;
  transition:.22s ease;
}
.check-row input::placeholder{color:#4B5F7C;font-family:inherit;letter-spacing:0}
.check-row input:focus{outline:none;border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(56,189,248,.16)}
.form-note{font-size:12.5px;color:var(--dim);margin:0}
.form-result{font-size:13.5px;font-weight:600;margin:0;min-height:20px}
.form-result.ok{color:#4ADE80}
.form-result.err{color:#FB7185}

/* ---------- FOOTER ---------- */
.site-footer{background:linear-gradient(180deg,#030712,#050D1E);border-top:1px solid var(--line);padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.7;max-width:360px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-badges span{
  padding:5px 12px;border-radius:999px;font-size:11.5px;font-weight:600;
  background:rgba(37,99,235,.14);border:1px solid var(--line);color:#BFDBFE;
}
.footer-col h3{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);margin-bottom:15px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul li{font-size:13.5px;color:var(--muted);line-height:1.6}
.footer-col ul li a{color:var(--muted)}
.footer-col ul li a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--dim);
}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:80;
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 18px;border-radius:999px;min-height:52px;
  background:rgba(7,12,28,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;color:#EAF4FF;font-size:13px;font-weight:700;
  box-shadow:0 0 22px -4px rgba(6,182,212,.55);
  transition:.26s ease;
  background-image:linear-gradient(rgba(7,12,28,.92),rgba(7,12,28,.92)),linear-gradient(120deg,var(--lime),var(--cyan));
  background-origin:border-box;background-clip:padding-box,border-box;
}
.fab i{color:var(--cyan);font-size:15px;animation:fabPulse 2.6s infinite}
.fab:hover{opacity:1;transform:translateY(-3px);box-shadow:0 0 34px -2px rgba(6,182,212,.85);color:#fff}
.fab:active{transform:scale(.96) translateY(0)}
.fab .dot{position:absolute;top:-3px;right:-3px;width:11px;height:11px;border-radius:50%;background:#F43F5E;box-shadow:0 0 0 3px rgba(3,7,18,.9);animation:blink 1.6s infinite}
@keyframes fabPulse{0%,100%{opacity:1}50%{opacity:.45}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1080px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;
    gap:6px;padding:14px;background:rgba(4,10,24,.98);border:1px solid var(--line);border-radius:0 0 var(--radius) var(--radius);
    box-shadow:var(--shadow)}
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;border-radius:var(--radius-s)}
  .nav-toggle{display:flex;margin-left:auto}
  .header-actions{order:3}
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:860px){
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .post-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .trust{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .header-inner{min-height:66px;gap:10px}
  .brand-text strong{font-size:14.5px}
  .brand-text em{display:none}
  .header-actions .btn-ghost{display:none}
  .hero{padding:52px 0 46px}
  .section{padding:48px 0}
  .grid-3,.grid-4,.metrics,.steps,.post-list{grid-template-columns:1fr}
  .quick-grid{grid-template-columns:1fr}
  .cta-panel{padding:24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .fab{left:12px;bottom:80px;padding:12px 15px;font-size:12.5px}
}
@media (max-width:400px){
  .hero h1{font-size:23px}
  .section h2{font-size:20px}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-soft:#061024;
  --bg-elev:#0B1730;
  --glass:rgba(16,30,60,.55);
  --glass-strong:rgba(11,21,44,.86);
  --line:rgba(96,165,250,.16);
  --line-strong:rgba(56,189,248,.44);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --lime:#A3E635;
  --text:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --ok:#22C55E;
  --warn:#F59E0B;
  --radius-s:12px;
  --radius:18px;
  --radius-l:26px;
  --shadow:0 18px 48px -24px rgba(2,8,24,.95);
  --glow:0 0 0 1px rgba(56,189,248,.28),0 0 28px -6px rgba(56,189,248,.5);
  --container:1180px;
  --sp:22px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.68;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--holo);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0 0 12px;font-weight:800;letter-spacing:-.02em;line-height:1.28}
p{margin:0 0 14px}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(56,189,248,.32);color:#fff}
: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 20px}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(3,7,18,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue),var(--cyan));
  color:#04101f;font-size:18px;
  box-shadow:0 0 22px -6px rgba(56,189,248,.85);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:11px;color:var(--dim);letter-spacing:.06em;text-transform:uppercase;font-weight:600}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:13.5px;font-weight:600;color:var(--muted);
  white-space:nowrap;transition:.24s ease;
}
.nav-link:hover{color:var(--text);background:rgba(56,189,248,.09)}
.nav-link.is-active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.35)}
.header-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(37,99,235,.12);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--holo);border-radius:2px;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;
  font-size:14px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,color .24s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#03121f;
  box-shadow:0 0 24px -8px rgba(56,189,248,.9);
}
.btn-primary:hover{transform:translateY(-2px);color:#03121f;box-shadow:0 0 36px -6px rgba(56,189,248,1)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{color:var(--holo);border-color:var(--line-strong);background:rgba(37,99,235,.1)}
.btn-ghost:hover{background:rgba(56,189,248,.2);color:#fff;transform:translateY(-2px)}
.btn-outline{color:var(--text);border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-outline:hover{border-color:var(--line-strong);background:rgba(56,189,248,.12);color:#fff}
.btn-sm{padding:9px 16px;font-size:13px}
.btn-block{width:100%}

/* ---------- HERO ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:84px 0 76px;
  background:
    radial-gradient(880px 520px at 6% -8%,rgba(56,189,248,.22),transparent 64%),
    radial-gradient(760px 480px at 94% 6%,rgba(37,99,235,.30),transparent 62%),
    linear-gradient(180deg,#030712 0%,#061024 58%,#030712 100%);
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.2;filter:saturate(1.15) blur(1px);
  -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.3) 72%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.3) 72%,transparent 100%);
}
.hero::after{
  content:"";position:absolute;left:-200px;bottom:-340px;
  width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.26),transparent 66%);
  filter:blur(28px);pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:52px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(37,99,235,.16);border:1px solid var(--line-strong);
  font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);
  margin-bottom:20px;
}
.hero h1{
  font-size:clamp(27px,4vw,47px);
  font-weight:800;line-height:1.2;letter-spacing:-.028em;
  margin-bottom:18px;
  background:linear-gradient(120deg,#FFFFFF 0%,#BFE4FF 46%,#38BDF8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:var(--muted);font-size:16px;line-height:1.72;max-width:640px;margin-bottom:24px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:999px;
  background:rgba(12,24,48,.72);border:1px solid var(--line);
  font-size:13px;color:#CFE6FF;font-weight:500;
}
.hero-points i{color:var(--cyan);font-size:11px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-panel{
  border:1px solid var(--line);border-radius:var(--radius-l);
  background:linear-gradient(160deg,rgba(16,30,60,.72),rgba(6,16,36,.9));
  box-shadow:var(--shadow);padding:16px;
  backdrop-filter:blur(10px);
}
.hero-media{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(3,7,18,.86));
}
.hot-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;
  background:rgba(37,99,235,.86);border:1px solid var(--line-strong);
  font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#EAF6FF;
}
.hot-badge i{color:var(--warn)}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.hero-stat{
  padding:12px 10px;border-radius:var(--radius-s);
  background:rgba(3,7,18,.6);border:1px solid var(--line);text-align:left;
}
.hero-stat b{display:block;font-size:18px;font-weight:800;color:#fff;letter-spacing:-.02em}
.hero-stat span{font-size:11px;color:var(--dim);font-weight:600;letter-spacing:.04em;text-transform:uppercase}

/* ---------- SECTION BASE ---------- */
.section{padding:78px 0;position:relative}
.section--soft{
  background:linear-gradient(180deg,rgba(6,16,36,.92),rgba(3,7,18,.92));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.section-head{max-width:780px;margin-bottom:42px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:13px;
}
.section-head h2{font-size:clamp(22px,2.9vw,34px);line-height:1.26;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15.5px;margin:0}
.lead-split{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:44px;align-items:start}

/* ---------- METRICS ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.metric{
  padding:24px 20px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.metric:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.metric i{font-size:16px;color:var(--cyan);margin-bottom:12px;display:block}
.metric b{display:block;font-size:30px;font-weight:800;letter-spacing:-.03em;color:#fff;line-height:1.1}
.metric h3{font-size:14.5px;margin:8px 0 6px;color:var(--text)}
.metric p{font-size:13.5px;color:var(--dim);margin:0;line-height:1.62}

/* ---------- FEATURE / MATRIX CARDS ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.tcard{
  display:grid;grid-template-columns:132px minmax(0,1fr);gap:18px;align-items:center;
  padding:18px;border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(16,30,60,.6),rgba(6,16,36,.82));
  border:1px solid var(--line);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.tcard:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.tcard-media{border-radius:var(--radius-s);overflow:hidden;border:1px solid var(--line)}
.tcard-media img{width:100%;aspect-ratio:1/1;object-fit:cover}
.tcard h3{font-size:16.5px;margin:0 0 8px}
.tcard p{font-size:13.8px;color:var(--muted);margin:0 0 12px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:999px;
  font-size:11.5px;font-weight:600;letter-spacing:.03em;
  background:rgba(37,99,235,.16);border:1px solid var(--line);color:#CFE6FF;
}
.tag--lime{background:rgba(163,230,53,.12);border-color:rgba(163,230,53,.35);color:#D9F99D}
.tag--warn{background:rgba(245,158,11,.12);border-color:rgba(245,158,11,.38);color:#FDE68A}

/* ---------- TEXT BLOCK + LIST ---------- */
.panel{
  padding:28px;border-radius:var(--radius-l);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow);
}
.panel h3{font-size:19px;margin-bottom:10px}
.panel p{color:var(--muted);font-size:14.6px}
.check-list{display:grid;gap:14px;margin-top:6px}
.check-list li{
  display:grid;grid-template-columns:26px minmax(0,1fr);gap:12px;
  font-size:14.4px;color:var(--muted);line-height:1.66;
}
.check-list i{
  width:26px;height:26px;border-radius:9px;display:grid;place-items:center;
  background:rgba(56,189,248,.14);border:1px solid var(--line);color:var(--cyan);font-size:11px;
}
.check-list strong{color:var(--text);font-weight:700}

/* ---------- TIMELINE ---------- */
.steps{display:grid;gap:14px;counter-reset:step}
.step{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:18px;align-items:start;
  padding:20px 22px;border-radius:var(--radius);
  background:rgba(11,21,44,.66);border:1px solid var(--line);
  transition:border-color .24s ease,background .24s ease,transform .24s ease;
}
.step:hover{border-color:var(--line-strong);background:rgba(16,30,60,.78);transform:translateX(4px)}
.step-num{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;font-size:16px;color:#04101f;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  box-shadow:0 0 20px -8px rgba(56,189,248,.9);
}
.step h3{font-size:16px;margin:2px 0 6px}
.step p{margin:0;font-size:14px;color:var(--muted)}

/* ---------- COMPARE ---------- */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.compare-col{padding:26px;border-radius:var(--radius-l);border:1px solid var(--line);background:rgba(11,21,44,.6)}
.compare-col--good{border-color:var(--line-strong);background:linear-gradient(160deg,rgba(37,99,235,.16),rgba(6,16,36,.86))}
.compare-col h3{font-size:17px;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.compare-col h3 i{font-size:14px}
.compare-col--good h3 i{color:var(--cyan)}
.compare-col li{
  display:grid;grid-template-columns:20px minmax(0,1fr);gap:10px;
  font-size:14.2px;color:var(--muted);padding:9px 0;border-bottom:1px dashed rgba(96,165,250,.14);
}
.compare-col li:last-child{border-bottom:0}
.compare-col li i{margin-top:5px;font-size:11px}
.compare-col--good li i{color:var(--ok)}
.compare-col--bad li i{color:#EF4444}

/* ---------- TABLE ---------- */
.table-wrap{margin-top:26px;overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:rgba(3,7,18,.6)}
table{width:100%;border-collapse:collapse;min-width:560px}
th,td{padding:14px 18px;text-align:left;font-size:13.8px;border-bottom:1px solid rgba(96,165,250,.12)}
th{background:rgba(37,99,235,.14);color:#CFE6FF;font-weight:700;letter-spacing:.02em;font-size:12.5px;text-transform:uppercase}
td{color:var(--muted)}
td strong{color:var(--text)}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:rgba(56,189,248,.05)}

/* ---------- SPLIT MEDIA ---------- */
.split{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:42px;align-items:center}
.split-media{border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- POSTS ---------- */
.post-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:34px}
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius);border:1px solid var(--line);
  background:rgba(11,21,44,.62);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.post-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow)}
.post-thumb{display:block;overflow:hidden;border-bottom:1px solid var(--line)}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:11.5px;color:var(--dim);letter-spacing:.03em}
.post-meta span{display:inline-flex;align-items:center;gap:6px}
.post-card h3{font-size:15.6px;line-height:1.44;margin:0}
.post-card h3 a{color:var(--text)}
.post-card h3 a:hover{color:var(--cyan)}
.post-card p{font-size:13.6px;color:var(--muted);margin:0;flex:1}
.post-more{font-size:12.8px;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:7px}
.empty-note{
  padding:26px;border-radius:var(--radius);border:1px dashed var(--line-strong);
  color:var(--muted);font-size:14.5px;background:rgba(11,21,44,.5);text-align:left;
}

/* ---------- TRUST ---------- */
.trust-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-bottom:34px}
.trust-item{
  display:grid;grid-template-columns:42px minmax(0,1fr);gap:14px;align-items:start;
  padding:18px;border-radius:var(--radius);
  background:rgba(11,21,44,.6);border:1px solid var(--line);
}
.trust-item i{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(56,189,248,.14);border:1px solid var(--line);color:var(--cyan);font-size:15px;
}
.trust-item h3{font-size:14.5px;margin:2px 0 5px}
.trust-item p{font-size:13.2px;color:var(--dim);margin:0}

/* ---------- FORM / CTA ---------- */
.cta-box{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:38px;align-items:center;
  padding:34px;border-radius:var(--radius-l);
  background:linear-gradient(150deg,rgba(37,99,235,.2),rgba(6,16,36,.9));
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.cta-box h2{font-size:clamp(21px,2.7vw,31px);margin-bottom:12px}
.cta-box p{color:var(--muted);font-size:14.8px;margin:0}
.hash-form{display:grid;gap:12px}
.hash-form label{font-size:12.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--cyan)}
.hash-form input{
  width:100%;padding:14px 16px;border-radius:var(--radius-s);
  background:rgba(3,7,18,.72);border:1px solid var(--line);
  font-size:13.6px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.hash-form input::placeholder{color:var(--dim)}
.hash-form input:focus{outline:none;border-color:var(--line-strong);box-shadow:var(--glow)}
.form-note{font-size:12.6px;color:var(--dim);min-height:20px}
.form-note.is-ok{color:var(--ok)}
.form-note.is-bad{color:#FCA5A5}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  border-radius:var(--radius);border:1px solid var(--line);
  background:rgba(11,21,44,.6);overflow:hidden;transition:border-color .24s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(16,30,60,.7)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 20px;
  font-size:15.2px;font-weight:700;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--cyan);transition:transform .26s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 20px 20px;margin:0;color:var(--muted);font-size:14.4px}

/* ---------- FOOTER ---------- */
.site-footer{
  margin-top:0;padding:62px 0 26px;
  background:linear-gradient(180deg,#030712,#061024);
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:34px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:13.6px;color:var(--muted);max-width:420px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-badges span{
  padding:5px 11px;border-radius:999px;font-size:11.5px;font-weight:600;
  background:rgba(37,99,235,.14);border:1px solid var(--line);color:#CFE6FF;
}
.footer-col h3{font-size:13.5px;letter-spacing:.05em;text-transform:uppercase;color:#CFE6FF;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:13.4px;color:var(--muted);line-height:1.6}
.footer-col a{font-size:13.4px;color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.4px;color:var(--dim);
}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:80;
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px 12px 14px;border-radius:999px;
  background:rgba(7,7,13,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.86),rgba(7,7,13,.86)),linear-gradient(120deg,#A3E635,#38BDF8);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#EAF6FF;font-size:13px;font-weight:700;opacity:.78;
  transition:opacity .26s ease,transform .26s ease,box-shadow .26s ease;
}
.fab i{font-size:15px;color:var(--lime);transition:transform .4s ease,color .3s ease}
.fab:hover{opacity:1;transform:translateY(-3px);color:#fff;box-shadow:0 0 30px rgba(6,182,212,.7)}
.fab:hover i{transform:rotate(-12deg) scale(1.12);color:var(--cyan)}
.fab:active{transform:scale(.95)}
.fab-dot{
  position:absolute;top:6px;right:10px;width:9px;height:9px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 0 0 rgba(244,63,94,.7);
  animation:pulseDot 1.8s infinite;
}
@keyframes pulseDot{
  0%{box-shadow:0 0 0 0 rgba(244,63,94,.7)}
  70%{box-shadow:0 0 0 12px rgba(244,63,94,0)}
  100%{box-shadow:0 0 0 0 rgba(244,63,94,0)}
}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1080px){
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-inner{grid-template-columns:1fr;gap:38px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:980px){
  .nav-toggle{display:flex}
  .main-nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;margin:0;
    padding:14px;border-radius:var(--radius);
    background:var(--glass-strong);border:1px solid var(--line);
    box-shadow:var(--shadow);backdrop-filter:blur(18px);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;font-size:14px}
  .lead-split,.split,.cta-box{grid-template-columns:1fr;gap:30px}
  .compare{grid-template-columns:1fr}
}
@media (max-width:760px){
  .section{padding:60px 0}
  .hero{padding:62px 0 58px}
  .card-grid{grid-template-columns:1fr}
  .tcard{grid-template-columns:96px minmax(0,1fr);gap:14px}
  .trust-strip{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .post-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .header-inner{min-height:66px;gap:10px}
  .brand-text em{display:none}
  .header-actions .btn-ghost{display:none}
  .metric-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .cta-box{padding:24px 20px}
  .panel{padding:22px}
  .step{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:16px}
  .step-num{width:40px;height:40px;border-radius:12px;font-size:14px}
  .fab{bottom:84px;left:12px;padding:11px 15px 11px 12px;font-size:12px}
}