/* roulang page: index */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass-a:rgba(17,34,68,.74);
  --glass-b:rgba(8,18,41,.62);
  --glass-brd:rgba(56,189,248,.18);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --ink:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --line:rgba(148,163,184,.16);
  --radius:20px;
  --radius-sm:13px;
  --radius-pill:999px;
  --shadow:0 22px 60px -24px rgba(2,8,23,.95);
  --shadow-soft:0 12px 34px -20px rgba(2,8,23,.9);
  --glow:0 0 28px rgba(56,189,248,.32);
  --gap:clamp(18px,2.4vw,28px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  background:var(--bg-0);
  color:var(--ink);
  font-size:16px;
  line-height:1.65;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(56,189,248,.35);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.wrap{width:min(1200px,92%);margin-inline:auto}
.section{padding:clamp(56px,7vw,96px) 0;position:relative}
.section--tint{background:linear-gradient(180deg,rgba(8,18,41,0) 0%,rgba(11,26,58,.62) 45%,rgba(8,18,41,0) 100%)}
.section--deep{background:radial-gradient(120% 90% at 12% 0%,rgba(37,99,235,.18),transparent 58%),var(--bg-1)}
.grid-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(56,189,248,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.055) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(80% 60% at 50% 40%,#000 30%,transparent 100%);
}
.section>.wrap{position:relative;z-index:2}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.09);
  border:1px solid rgba(56,189,248,.28);border-radius:var(--radius-pill);
  padding:6px 14px;margin-bottom:18px;
}
.eyebrow i{font-size:.75rem}
.section-head{max-width:780px;margin-bottom:clamp(30px,4vw,48px)}
.section-head.is-left{text-align:left}
.section-head h2{font-size:clamp(1.55rem,3.1vw,2.35rem);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:1.02rem;margin:0}
.lead-muted{color:var(--muted)}

.glass{
  background:linear-gradient(158deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--glass-brd);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}

/* Buttons */
.btn-solid,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--radius-pill);font-weight:600;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-solid{
  padding:13px 26px;color:#04101f;
  background:linear-gradient(135deg,#38BDF8 0%,#2563EB 100%);
  box-shadow:0 0 0 1px rgba(56,189,248,.4),0 16px 34px -16px rgba(37,99,235,.95);
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.7),0 0 34px rgba(56,189,248,.55);color:#04101f}
.btn-solid:active{transform:translateY(0) scale(.985)}
.btn-ghost{
  padding:12px 24px;color:var(--ink);
  border-color:rgba(96,165,250,.34);
  background:rgba(15,30,60,.42);
}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(56,189,248,.14);color:#fff;transform:translateY(-2px)}
.btn-line{
  padding:9px 18px;font-size:.86rem;font-weight:600;
  border-color:rgba(148,163,184,.3);color:var(--holo);background:transparent;
}
.btn-line:hover{border-color:var(--cyan);color:#fff;background:rgba(56,189,248,.1)}
.btn-lg{padding:15px 30px;font-size:1.02rem}

/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.14);
}
.header-inner{display:flex;align-items:center;gap:22px;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,#38BDF8,#2563EB);font-size:1.15rem;
  box-shadow:0 0 0 1px rgba(56,189,248,.45),0 10px 26px -12px rgba(37,99,235,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.14}
.brand-text strong{font-size:.96rem;font-weight:700;letter-spacing:-.01em}
.brand-text small{font-size:.68rem;color:var(--dim);letter-spacing:.05em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  padding:9px 14px;border-radius:var(--radius-pill);font-size:.9rem;font-weight:500;
  color:var(--muted);transition:color .2s,background .2s;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.1)}
.nav-link.active{color:#fff;background:rgba(56,189,248,.16);box-shadow:inset 0 0 0 1px rgba(56,189,248,.32)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.header-actions .btn-solid{padding:10px 20px;font-size:.88rem}
.header-actions .btn-ghost{padding:9px 18px;font-size:.88rem}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(148,163,184,.28);background:rgba(15,30,60,.55);
  color:var(--ink);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--cyan)}

/* Hero */
.hero{position:relative;overflow:hidden;padding:clamp(64px,9vw,124px) 0 clamp(48px,6vw,78px)}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  transform:scale(1.04);filter:saturate(.85);
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(3,7,18,.96) 0%,rgba(3,7,18,.86) 42%,rgba(8,18,41,.66) 72%,rgba(37,99,235,.3) 100%);
}
.hero-veil::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.07) 1px,transparent 1px);
  background-size:54px 54px;opacity:.6;
  mask-image:linear-gradient(90deg,#000,transparent 78%);
}
.hero-inner{position:relative;z-index:3;max-width:900px}
.hero h1{
  font-size:clamp(1.7rem,4.3vw,3rem);font-weight:800;
  margin-bottom:20px;letter-spacing:-.02em;line-height:1.2;
  text-shadow:0 6px 30px rgba(3,7,18,.7);
}
.hero-lead{font-size:clamp(1rem,1.35vw,1.09rem);color:#CBD5E1;max-width:720px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  border:1px solid var(--glass-brd);border-radius:var(--radius);
  background:rgba(8,18,41,.6);backdrop-filter:blur(12px);overflow:hidden;
}
.hero-stats li{padding:20px 18px;background:linear-gradient(160deg,rgba(17,34,68,.5),rgba(8,18,41,.28))}
.hero-stats strong{display:block;font-size:1.32rem;font-weight:800;color:var(--cyan);letter-spacing:-.02em}
.hero-stats span{font-size:.82rem;color:var(--muted);display:block;margin-top:3px}

/* Feature trio */
.trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.feature{padding:clamp(24px,2.6vw,34px)}
.feature-icon{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;font-size:1.25rem;
  background:linear-gradient(140deg,rgba(56,189,248,.24),rgba(37,99,235,.28));
  border:1px solid rgba(56,189,248,.32);color:var(--cyan);margin-bottom:18px;
}
.feature h3{font-size:1.12rem;margin-bottom:10px}
.feature p{color:var(--muted);font-size:.94rem;margin:0}

/* Scenario list */
.scene-wrap{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,62px);align-items:start}
.scene-list{border-top:1px solid var(--line)}
.scene-item{
  display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.scene-num{
  font-size:.78rem;font-weight:700;letter-spacing:.1em;color:var(--cyan);
  border:1px solid rgba(56,189,248,.3);border-radius:9px;padding:5px 10px;line-height:1;
  background:rgba(56,189,248,.08);
}
.scene-item h4{font-size:1.02rem;margin:0 0 6px}
.scene-item p{margin:0;color:var(--muted);font-size:.92rem}
.scene-media{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--glass-brd);
  box-shadow:var(--shadow);position:sticky;top:100px;
}
.scene-media img{width:100%;height:390px;object-fit:cover;opacity:.86}
.scene-media figcaption{
  padding:14px 18px;font-size:.82rem;color:var(--muted);
  background:rgba(8,18,41,.9);border-top:1px solid var(--line);
}

/* Matrix */
.matrix{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.matrix-card{overflow:hidden;display:flex;flex-direction:column;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease}
.matrix-card:hover{transform:translateY(-5px);border-color:rgba(56,189,248,.5);box-shadow:0 26px 60px -26px rgba(56,189,248,.55)}
.matrix-thumb{position:relative;height:178px;overflow:hidden}
.matrix-thumb img{width:100%;height:100%;object-fit:cover;opacity:.82;transition:transform .5s ease,opacity .3s}
.matrix-card:hover .matrix-thumb img{transform:scale(1.06);opacity:.95}
.matrix-tag{
  position:absolute;top:14px;left:14px;font-size:.68rem;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;padding:5px 11px;border-radius:var(--radius-pill);
  background:rgba(3,7,18,.78);border:1px solid rgba(56,189,248,.45);color:var(--cyan);
}
.matrix-body{padding:24px;display:flex;flex-direction:column;flex:1}
.matrix-body h3{font-size:1.1rem;margin-bottom:10px}
.matrix-body p{color:var(--muted);font-size:.93rem;margin-bottom:18px;flex:1}
.matrix-link{font-size:.88rem;font-weight:600;color:var(--cyan);display:inline-flex;align-items:center;gap:8px}
.matrix-link i{transition:transform .25s}
.matrix-card:hover .matrix-link i{transform:translateX(5px)}

/* Credentials */
.cred-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}
.cred{
  padding:24px 22px;border-radius:var(--radius-sm);
  background:rgba(8,18,41,.55);border:1px solid var(--line);
  transition:border-color .25s,background .25s;
}
.cred:hover{border-color:rgba(56,189,248,.42);background:rgba(28,48,90,.45)}
.cred i{font-size:1.2rem;color:var(--cyan);margin-bottom:14px;display:block}
.cred h4{font-size:.99rem;margin-bottom:8px}
.cred p{margin:0;font-size:.88rem;color:var(--muted)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);counter-reset:step}
.step{position:relative;padding-top:30px}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-size:.8rem;font-weight:800;letter-spacing:.14em;color:var(--cyan);
  position:absolute;top:0;left:0;
}
.step::after{
  content:"";position:absolute;top:8px;left:52px;right:-8px;height:1px;
  background:linear-gradient(90deg,rgba(56,189,248,.5),rgba(56,189,248,0));
}
.step:last-child::after{display:none}
.step h4{font-size:1rem;margin-bottom:8px}
.step p{margin:0;font-size:.9rem;color:var(--muted)}

/* Metrics */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border:1px solid var(--glass-brd);border-radius:var(--radius);
  overflow:hidden;background:linear-gradient(150deg,rgba(17,34,68,.7),rgba(8,18,41,.5));
}
.metric{padding:clamp(22px,2.6vw,34px);border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric strong{display:block;font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;letter-spacing:-.03em;
  background:linear-gradient(120deg,#38BDF8,#60A5FA);-webkit-background-clip:text;background-clip:text;color:transparent}
.metric span{display:block;font-size:.87rem;color:var(--muted);margin-top:6px}

/* Testimonials */
.quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.quote{padding:26px}
.quote-stars{color:#FACC15;font-size:.82rem;letter-spacing:2px;margin-bottom:14px}
.quote p{font-size:.95rem;color:#CBD5E1;margin-bottom:20px}
.quote-who{display:flex;align-items:center;gap:12px}
.quote-avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:.85rem;
  background:linear-gradient(140deg,#38BDF8,#2563EB);color:#04101f;
}
.quote-who strong{display:block;font-size:.9rem}
.quote-who small{color:var(--dim);font-size:.78rem}

/* Compare */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.compare-col{padding:clamp(24px,2.8vw,34px);border-radius:var(--radius);border:1px solid var(--line);background:rgba(8,18,41,.5)}
.compare-col.is-good{border-color:rgba(56,189,248,.45);background:linear-gradient(160deg,rgba(17,44,88,.72),rgba(8,18,41,.6));box-shadow:var(--shadow-soft)}
.compare-col h3{font-size:1.06rem;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.compare-col h3 i{font-size:1rem}
.compare-col.is-good h3 i{color:var(--cyan)}
.compare-col.is-bad h3 i{color:var(--dim)}
.compare-list li{display:flex;gap:12px;padding:11px 0;font-size:.92rem;color:#CBD5E1;border-bottom:1px dashed rgba(148,163,184,.14)}
.compare-list li:last-child{border-bottom:0}
.compare-col.is-bad .compare-list li{color:var(--muted)}
.compare-list i{font-size:.78rem;margin-top:6px;flex-shrink:0}
.compare-col.is-good .compare-list i{color:var(--cyan)}
.compare-col.is-bad .compare-list i{color:var(--dim)}

/* News */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.news-card{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:rgba(8,18,41,.55);transition:transform .28s,border-color .28s,box-shadow .28s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.45);box-shadow:0 24px 52px -26px rgba(56,189,248,.6)}
.news-link{display:flex;flex-direction:column;height:100%;padding:24px}
.news-cat{
  font-size:.68rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);
  margin-bottom:12px;display:inline-block;
}
.news-title{font-size:1.02rem;margin-bottom:10px;color:var(--ink);line-height:1.4}
.news-excerpt{font-size:.89rem;color:var(--muted);margin-bottom:18px;flex:1}
.news-meta{display:flex;justify-content:space-between;align-items:center;font-size:.78rem;color:var(--dim);border-top:1px solid var(--line);padding-top:13px}
.news-meta i{margin-right:6px}
.cms-empty{padding:36px;text-align:left;color:var(--muted);border:1px dashed rgba(148,163,184,.3);border-radius:var(--radius)}

/* FAQ */
.faq-shell{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(28px,4vw,60px);align-items:start}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(8,18,41,.5);overflow:hidden;transition:border-color .25s}
.faq-item[open]{border-color:rgba(56,189,248,.42);background:rgba(17,34,68,.55)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-weight:600;font-size:.98rem;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.72rem;
  color:var(--cyan);transition:transform .25s;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-answer{padding:0 22px 20px;color:var(--muted);font-size:.92rem;margin:0}

/* Form */
.form-shell{
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(26px,4vw,58px);
  padding:clamp(28px,3.6vw,52px);border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(17,34,68,.78),rgba(8,18,41,.66));
  border:1px solid var(--glass-brd);box-shadow:var(--shadow);
}
.form-fields{display:grid;gap:14px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:.82rem;font-weight:600;color:#CBD5E1}
.field input,.field select{
  background:rgba(3,7,18,.72);border:1px solid rgba(148,163,184,.26);
  border-radius:12px;padding:13px 16px;font-size:.94rem;transition:border-color .2s,box-shadow .2s;
  width:100%;
}
.field input::placeholder{color:var(--dim)}
.field input:focus,.field select:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.16)}
.form-note{font-size:.8rem;color:var(--dim);margin:0}
.form-feedback{margin-top:14px;font-size:.88rem;color:var(--cyan);display:none}
.form-feedback.is-on{display:block}

/* Assurance bar */
.assure{
  display:flex;flex-wrap:wrap;gap:14px 34px;align-items:center;justify-content:flex-start;
  padding:26px clamp(22px,3vw,38px);border-radius:var(--radius);
  border:1px solid var(--glass-brd);background:rgba(8,18,41,.6);
}
.assure-item{display:flex;align-items:center;gap:11px;font-size:.9rem;color:#CBD5E1}
.assure-item i{color:var(--cyan);font-size:1rem}

/* Footer */
.site-footer{background:linear-gradient(180deg,var(--bg-1),#020510);border-top:1px solid rgba(56,189,248,.14);padding:60px 0 26px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--gap);padding-bottom:38px;border-bottom:1px solid var(--line)}
.footer-brand p{font-size:.89rem;color:var(--muted);margin:14px 0 0;max-width:330px}
.footer-col h4{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:.89rem;color:var(--muted);transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;padding-top:24px;font-size:.82rem;color:var(--dim)}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--cyan)}
.age-note{
  display:inline-flex;align-items:center;gap:8px;font-size:.76rem;letter-spacing:.08em;
  border:1px solid rgba(148,163,184,.3);border-radius:var(--radius-pill);padding:5px 13px;color:var(--muted);margin-top:18px;
}

/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:11px 18px 11px 12px;border-radius:var(--radius-pill);
  background:rgba(7,7,13,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,10,22,.9),rgba(7,10,22,.9)),linear-gradient(120deg,#38BDF8,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 22px rgba(56,189,248,.35);
  color:#fff;font-size:.82rem;font-weight:600;opacity:.78;
  transition:opacity .25s,box-shadow .25s,transform .25s;
  animation:fabPulse 3.4s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:translateY(-2px);box-shadow:0 0 32px rgba(56,189,248,.62)}
.fab:active{transform:scale(.96)}
.fab-icon{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(140deg,#38BDF8,#2563EB);color:#04101f;font-size:.9rem;
}
.fab-drop{
  position:absolute;top:-3px;right:-3px;width:12px;height:12px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 0 2px #030712,0 0 12px rgba(244,63,94,.9);
  animation:dotBlink 1.6s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 20px rgba(56,189,248,.3)}50%{box-shadow:0 0 30px rgba(56,189,248,.55)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.35}}

/* Bottom bar */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:45;
  background:rgba(3,7,18,.9);backdrop-filter:blur(14px);
  border-top:1px solid rgba(56,189,248,.2);
  padding:11px 0;
}
.bottom-bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.bottom-bar p{margin:0;font-size:.85rem;color:#CBD5E1}
.bottom-bar .btn-solid{padding:10px 22px;font-size:.86rem}

@media (max-width:1100px){
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cred-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;
    gap:2px;padding:14px 5%;background:rgba(3,7,18,.98);
    border-bottom:1px solid rgba(56,189,248,.2);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:13px 14px;border-radius:12px}
  .nav-toggle{display:grid;place-items:center}
  .header-inner{gap:12px}
  .brand-text small{display:none}
  .trio,.matrix,.quotes,.news-grid{grid-template-columns:1fr 1fr}
  .scene-wrap,.faq-shell,.form-shell,.compare{grid-template-columns:1fr}
  .scene-media{position:static}
  .steps{grid-template-columns:1fr 1fr}
  .metrics{grid-template-columns:1fr 1fr}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line)}
}
@media (max-width:767px){
  .header-actions .btn-ghost{display:none}
  .hero-stats{grid-template-columns:1fr 1fr}
  .hero-veil{background:linear-gradient(180deg,rgba(3,7,18,.96),rgba(3,7,18,.88))}
}
@media (max-width:575px){
  body{font-size:15.4px}
  .trio,.matrix,.quotes,.news-grid,.cred-grid,.steps,.metrics,.hero-stats{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
  .brand-text strong{font-size:.86rem}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn-solid,.hero-cta .btn-ghost{width:100%}
  .fab{bottom:92px;left:12px}
  .bottom-bar .wrap{justify-content:center;text-align:center}
  .scene-media img{height:240px}
}

/* roulang page: article */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass-a:rgba(17,34,68,.74);
  --glass-b:rgba(8,18,41,.62);
  --glass-brd:rgba(56,189,248,.18);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --ink:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --line:rgba(148,163,184,.16);
  --radius:20px;
  --radius-sm:13px;
  --radius-pill:999px;
  --shadow:0 22px 60px -24px rgba(2,8,23,.95);
  --shadow-soft:0 12px 34px -20px rgba(2,8,23,.9);
  --glow:0 0 28px rgba(56,189,248,.32);
  --gap:clamp(18px,2.4vw,28px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  background:var(--bg-0);
  color:var(--ink);
  font-size:16px;
  line-height:1.65;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{font-weight:700;line-height:1.26;margin:0 0 12px;letter-spacing:-.01em}
p{margin:0 0 16px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.wrap{width:min(1200px,92%);margin-inline:auto}
.section{padding:clamp(56px,7vw,96px) 0;position:relative}
.section--tint{background:linear-gradient(180deg,rgba(8,18,41,0) 0%,rgba(11,26,58,.62) 45%,rgba(8,18,41,0) 100%)}
.section--deep{background:radial-gradient(120% 90% at 12% 0%,rgba(37,99,235,.18),transparent 58%),var(--bg-1)}
.grid-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(56,189,248,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.055) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(80% 60% at 50% 40%,#000 30%,transparent 100%);
  mask-image:radial-gradient(80% 60% at 50% 40%,#000 30%,transparent 100%);
}
.section>.wrap{position:relative;z-index:2}
section[id]{scroll-margin-top:96px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.09);
  border:1px solid rgba(56,189,248,.28);border-radius:var(--radius-pill);
  padding:6px 14px;margin-bottom:18px;
}
.eyebrow i{font-size:.75rem}
.section-head{max-width:800px;margin-bottom:clamp(30px,4vw,48px)}
.section-head.is-left{text-align:left}
.section-head h2{font-size:clamp(1.55rem,3.1vw,2.35rem);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:1.02rem;margin:0}
.lead-muted{color:var(--muted)}
.btn-solid,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--radius-pill);font-weight:600;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-solid{
  padding:13px 26px;color:#04101f;
  background:linear-gradient(135deg,#38BDF8 0%,#2563EB 100%);
  box-shadow:0 0 0 1px rgba(56,189,248,.4),0 16px 34px -16px rgba(37,99,235,.95);
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.7),0 0 34px rgba(56,189,248,.55);color:#04101f}
.btn-solid:active{transform:translateY(0) scale(.985)}
.btn-ghost{
  padding:12px 24px;color:var(--ink);
  border-color:rgba(96,165,250,.34);
  background:rgba(15,30,60,.42);
}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(56,189,248,.14);color:#fff;transform:translateY(-2px)}
.btn-line{
  padding:9px 18px;font-size:.86rem;font-weight:600;
  border-color:rgba(148,163,184,.3);color:var(--holo);background:transparent;
}
.btn-line:hover{border-color:var(--cyan);color:#fff;background:rgba(56,189,248,.1)}
.btn-lg{padding:15px 30px;font-size:1.02rem}

/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.14);
}
.header-inner{display:flex;align-items:center;gap:22px;min-height:74px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,#38BDF8,#2563EB);font-size:1.15rem;
  box-shadow:0 0 0 1px rgba(56,189,248,.45),0 10px 26px -12px rgba(37,99,235,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.14}
.brand-text strong{font-size:.96rem;font-weight:700;letter-spacing:-.01em}
.brand-text small{font-size:.68rem;color:var(--dim);letter-spacing:.05em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  padding:9px 14px;border-radius:var(--radius-pill);font-size:.9rem;font-weight:500;
  color:var(--muted);transition:color .2s,background .2s;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.1)}
.nav-link.active{color:#fff;background:rgba(56,189,248,.16);box-shadow:inset 0 0 0 1px rgba(56,189,248,.32)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.header-actions .btn-solid{padding:10px 20px;font-size:.88rem}
.header-actions .btn-ghost{padding:9px 18px;font-size:.88rem}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(148,163,184,.28);background:rgba(15,30,60,.55);
  color:var(--ink);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--cyan)}
.read-progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,#38BDF8,#2563EB);
  box-shadow:0 0 12px rgba(56,189,248,.75);
  transition:width .12s linear;
}

/* Article hero */
.article-hero{position:relative;overflow:hidden;padding:clamp(58px,7.6vw,108px) 0 clamp(44px,5vw,72px)}
.article-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.04);filter:saturate(.85)}
.article-hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(3,7,18,.97) 0%,rgba(3,7,18,.88) 44%,rgba(8,18,41,.7) 74%,rgba(37,99,235,.32) 100%);
}
.article-hero-inner{
  position:relative;z-index:3;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.85fr);
  gap:clamp(26px,4vw,56px);align-items:start;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:.82rem;color:var(--muted);margin-bottom:16px}
.crumbs a{transition:color .2s}
.crumbs a:hover{color:var(--cyan)}
.crumbs i{font-size:.62rem;color:var(--dim)}
.hero-brand{
  display:inline-flex;align-items:center;gap:9px;font-size:.8rem;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--holo);margin-bottom:14px;
}
.hero-brand i{color:var(--cyan)}
.article-hero h1{
  font-size:clamp(1.62rem,3.9vw,2.7rem);font-weight:800;line-height:1.2;
  margin-bottom:18px;text-shadow:0 6px 30px rgba(3,7,18,.7);
}
.hero-lead{color:#CBD5E1;font-size:clamp(1rem,1.3vw,1.08rem);max-width:660px;margin-bottom:24px}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{
  display:inline-flex;align-items:center;gap:8px;font-size:.79rem;font-weight:500;
  color:#CBD5E1;background:rgba(15,30,60,.6);border:1px solid var(--line);
  border-radius:var(--radius-pill);padding:7px 15px;
}
.chip i{color:var(--cyan);font-size:.78rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-card{
  background:var(--glass-a);border:1px solid var(--glass-brd);border-radius:var(--radius);
  overflow:hidden;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow);
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-card-body{padding:22px}
.hero-card-body h2{font-size:1.06rem;margin-bottom:6px}
.hero-card-body p{font-size:.9rem;color:var(--muted);margin-bottom:0}
.hero-card-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:11px}
.hero-card-list li{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:#CBD5E1}
.hero-card-list i{color:var(--cyan);margin-top:4px;font-size:.72rem}

/* Quick facts */
.quick-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--line);border:1px solid var(--glass-brd);border-radius:var(--radius);overflow:hidden;
}
.quick-item{background:rgba(8,18,41,.78);padding:24px 22px}
.quick-item strong{display:block;font-size:1.35rem;font-weight:800;color:#fff;line-height:1.2}
.quick-item span{display:block;font-size:.85rem;color:var(--muted);margin-top:6px}

/* Article layout */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:clamp(24px,3.4vw,44px);align-items:start}
.article-main{
  background:linear-gradient(160deg,rgba(17,34,68,.62),rgba(8,18,41,.72));
  border:1px solid var(--glass-brd);border-radius:var(--radius);
  padding:clamp(22px,3.2vw,44px);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.article-main > h2{font-size:clamp(1.3rem,2.3vw,1.75rem);margin-bottom:22px}
.article-body{color:#D7E2F0;font-size:1.03rem;line-height:1.7}
.article-body > *:first-child{margin-top:0}
.article-body h2{font-size:clamp(1.22rem,2.1vw,1.6rem);color:#fff;margin:36px 0 14px;padding-left:14px;border-left:3px solid var(--cyan)}
.article-body h3{font-size:clamp(1.06rem,1.6vw,1.22rem);color:#fff;margin:28px 0 12px}
.article-body h4{font-size:1rem;color:var(--holo);margin:22px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 20px}
.article-body li{margin-bottom:9px}
.article-body li::marker{color:var(--cyan)}
.article-body a{color:var(--cyan);border-bottom:1px dashed rgba(56,189,248,.45)}
.article-body a:hover{color:#fff;border-bottom-color:#fff}
.article-body strong{color:#fff}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid rgba(56,189,248,.6);
  background:rgba(56,189,248,.07);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#CBD5E1;
}
.article-body img{border-radius:var(--radius-sm);margin:22px 0}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:.94rem;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:rgba(37,99,235,.18);color:#fff;font-weight:600;white-space:nowrap}
.article-body tr:nth-child(even) td{background:rgba(8,18,41,.55)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:30px 0}
.notice-box{
  margin-top:8px;padding:26px;border:1px dashed rgba(56,189,248,.4);border-radius:var(--radius-sm);
  background:rgba(56,189,248,.06);color:#CBD5E1;
}
.notice-box h3{color:#fff;margin-top:0}
.notice-box .btn-solid{margin-top:12px}

/* Aside */
.aside{position:sticky;top:96px;display:grid;gap:18px}
.aside-card{
  background:var(--glass-b);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.aside-card h3{font-size:.98rem;text-transform:uppercase;letter-spacing:.1em;color:#fff;margin-bottom:16px}
.aside-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.aside-list li{display:flex;justify-content:space-between;gap:14px;font-size:.88rem;padding-bottom:10px;border-bottom:1px dashed rgba(148,163,184,.16);color:var(--muted)}
.aside-list li:last-child{border-bottom:0;padding-bottom:0}
.aside-list b{color:#E2E8F0;font-weight:600;text-align:right}
.aside-cta{
  background:linear-gradient(150deg,rgba(37,99,235,.42),rgba(56,189,248,.12));
  border:1px solid rgba(56,189,248,.38);border-radius:var(--radius);padding:24px;
  box-shadow:var(--glow);
}
.aside-cta h3{font-size:1.08rem;margin-bottom:10px}
.aside-cta p{font-size:.9rem;color:#CBD5E1;margin-bottom:16px}
.aside-cta .btn-solid{width:100%;padding:12px 18px;font-size:.92rem}

/* Category matrix */
.cat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.cat-card{
  display:block;background:var(--glass-b);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.cat-card:hover{transform:translateY(-5px);border-color:rgba(56,189,248,.5);box-shadow:var(--glow)}
.cat-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.3);color:var(--cyan);font-size:1.05rem;
}
.cat-card h3{font-size:1.1rem;margin-bottom:9px}
.cat-card p{font-size:.92rem;color:var(--muted);margin-bottom:14px}
.cat-more{font-size:.85rem;font-weight:600;color:var(--holo);display:inline-flex;align-items:center;gap:8px}
.cat-card:hover .cat-more{color:var(--cyan)}

/* Post list */
.post-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.post-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--glass-b);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.45);box-shadow:var(--glow)}
.post-tag{
  align-self:flex-start;font-size:.7rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.28);
  border-radius:var(--radius-pill);padding:5px 12px;
}
.post-card h3{font-size:1.02rem;line-height:1.45;margin:0}
.post-date{font-size:.8rem;color:var(--dim);margin-top:auto}

/* Subscribe */
.subscribe{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,4vw,52px);align-items:center}
.subscribe h2{font-size:clamp(1.45rem,2.9vw,2.1rem);margin-bottom:14px}
.subscribe p{color:var(--muted);margin-bottom:0}
.as-form{display:flex;flex-wrap:wrap;gap:12px}
.as-form input[type="email"]{
  flex:1;min-width:220px;padding:14px 20px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(8,18,41,.82);color:#fff;
  transition:border-color .2s,box-shadow .2s;
}
.as-form input[type="email"]::placeholder{color:var(--dim)}
.as-form input[type="email"]:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.form-note{font-size:.82rem;color:var(--dim);margin-top:14px;width:100%}
.form-msg{font-size:.88rem;color:var(--cyan);margin-top:12px;width:100%;display:none}
.form-msg.is-on{display:block}

/* FAQ */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--glass-b);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:0 22px;transition:border-color .25s,background .25s;
}
.faq-item[open]{border-color:rgba(56,189,248,.42);background:rgba(17,34,68,.6)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:19px 0;font-weight:600;font-size:1rem;
  display:flex;align-items:center;justify-content:space-between;gap:18px;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--cyan);font-size:.82rem;transition:transform .25s ease;flex-shrink:0;
}
.faq-item[open] summary::after{content:"\f068"}
.faq-answer{color:var(--muted);font-size:.95rem;padding:0 0 20px;line-height:1.68}

/* Closing CTA */
.closing{
  position:relative;overflow:hidden;border-radius:var(--radius);
  border:1px solid rgba(56,189,248,.28);
  background:linear-gradient(120deg,rgba(37,99,235,.32),rgba(8,18,41,.9) 62%),var(--bg-1);
  padding:clamp(32px,5vw,60px);text-align:center;
}
.closing h2{font-size:clamp(1.5rem,3vw,2.2rem);margin-bottom:14px}
.closing p{color:#CBD5E1;max-width:700px;margin:0 auto 26px}
.closing-cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* Footer */
.site-footer{background:linear-gradient(180deg,rgba(3,7,18,0),rgba(8,18,41,.75) 40%),var(--bg-0);border-top:1px solid var(--line);padding:clamp(48px,6vw,78px) 0 26px;margin-top:clamp(40px,6vw,80px)}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(22px,3vw,40px);padding-bottom:34px;border-bottom:1px solid var(--line)}
.footer-brand p{color:var(--muted);font-size:.92rem;margin:16px 0}
.age-note{
  display:inline-flex;align-items:center;gap:9px;font-size:.8rem;color:var(--holo);
  background:rgba(56,189,248,.08);border:1px solid rgba(56,189,248,.22);
  border-radius:var(--radius-pill);padding:7px 15px;
}
.footer-col h4{font-size:.86rem;text-transform:uppercase;letter-spacing:.1em;color:#fff;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:.9rem;transition:color .2s,padding-left .2s}
.footer-col a:hover{color:var(--cyan);padding-left:4px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:24px;font-size:.82rem;color:var(--dim)}

/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  min-height:54px;padding:12px 20px;border-radius:var(--radius-pill);
  font-size:.9rem;font-weight:600;color:#fff;
  background:rgba(7,7,13,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.88),rgba(7,7,13,.88)),linear-gradient(135deg,#38BDF8,#06B6D4);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  opacity:.85;transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;cursor:pointer;
}
.fab:hover{transform:scale(1.06);opacity:1;box-shadow:0 0 32px rgba(56,189,248,.65)}
.fab:active{transform:scale(.96)}
.fab i{color:var(--cyan);font-size:1rem}
.fab .dot{
  position:absolute;top:4px;right:6px;width:10px;height:10px;border-radius:50%;
  background:#F43F5E;box-shadow:0 0 10px rgba(244,63,94,.9);animation:fabPulse 1.6s infinite;
}
@keyframes fabPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.35);opacity:.6}}

/* Responsive */
@media (max-width:1024px){
  .article-hero-inner{grid-template-columns:1fr}
  .article-layout{grid-template-columns:1fr}
  .aside{position:static}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cat-grid,.post-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:1fr 1fr}
  .subscribe{grid-template-columns:1fr}
  .main-nav{
    position:absolute;top:calc(100% + 1px);left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:6px;padding:16px 0 20px;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--glass-brd);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;font-size:.95rem;border-radius:var(--radius-sm)}
  .nav-toggle{display:grid;place-items:center}
  .header-actions{margin-left:auto}
}
@media (max-width:768px){
  .brand-text small{display:none}
  .brand-mark{width:38px;height:38px;border-radius:11px;font-size:1rem}
  .header-inner{gap:12px;min-height:66px}
  .header-actions .btn-solid{padding:9px 16px;font-size:.82rem}
  .header-actions .btn-ghost{padding:8px 14px;font-size:.82rem}
  .article-main{padding:22px 18px}
  .article-body{font-size:1rem}
  .faq-item{padding:0 18px}
  .fab{bottom:20px;padding:11px 16px;font-size:.84rem}
}
@media (max-width:560px){
  .wrap{width:94%}
  .brand-text strong{font-size:.78rem}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:.9rem}
  .header-actions .btn-solid{padding:8px 12px;font-size:.72rem}
  .header-actions .btn-ghost{padding:7px 10px;font-size:.72rem}
  .nav-toggle{width:38px;height:38px}
  .quick-grid{grid-template-columns:1fr}
  .cat-grid,.post-list{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .hero-cta .btn-solid,.hero-cta .btn-ghost{width:100%}
  .aside-cta .btn-solid{width:100%}
}

/* roulang page: category1 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass-a:rgba(17,34,68,.74);
  --glass-b:rgba(8,18,41,.62);
  --glass-brd:rgba(56,189,248,.18);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --ink:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --line:rgba(148,163,184,.16);
  --radius:20px;
  --radius-sm:13px;
  --radius-pill:999px;
  --shadow:0 22px 60px -24px rgba(2,8,23,.95);
  --shadow-soft:0 12px 34px -20px rgba(2,8,23,.9);
  --glow:0 0 28px rgba(56,189,248,.32);
  --gap:clamp(18px,2.4vw,28px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  background:var(--bg-0);
  color:var(--ink);
  font-size:16px;
  line-height:1.65;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-bottom:92px;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0 0 12px;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0 0 14px}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:clamp(54px,6.6vw,94px) 0;position:relative}
.section--tint{background:linear-gradient(180deg,rgba(8,18,41,0) 0%,rgba(11,26,58,.62) 45%,rgba(8,18,41,0) 100%)}
.section--deep{background:radial-gradient(120% 90% at 12% 0%,rgba(37,99,235,.18),transparent 58%),var(--bg-1);border-top:1px solid rgba(56,189,248,.1);border-bottom:1px solid rgba(56,189,248,.1)}
.section-head{max-width:800px;margin-bottom:clamp(28px,3.6vw,44px);text-align:left}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:1.02rem;margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.09);
  border:1px solid rgba(56,189,248,.28);border-radius:var(--radius-pill);
  padding:6px 14px;margin-bottom:16px;
}
.btn-solid,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--radius-pill);font-weight:600;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-solid{
  padding:13px 26px;color:#04101f;
  background:linear-gradient(135deg,#38BDF8 0%,#2563EB 100%);
  box-shadow:0 0 0 1px rgba(56,189,248,.4),0 16px 34px -16px rgba(37,99,235,.95);
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.7),0 0 34px rgba(56,189,248,.55);color:#04101f}
.btn-solid:active{transform:translateY(0) scale(.985)}
.btn-ghost{padding:12px 24px;color:var(--ink);border-color:rgba(96,165,250,.34);background:rgba(15,30,60,.42)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(56,189,248,.14);color:#fff;transform:translateY(-2px)}
.btn-line{padding:9px 18px;font-size:.86rem;border-color:rgba(148,163,184,.3);color:var(--holo);background:transparent}
.btn-line:hover{border-color:var(--cyan);color:#fff;background:rgba(56,189,248,.1)}
.btn-lg{padding:15px 30px;font-size:1.02rem}
.btn-block{width:100%}
/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.14);
}
.header-inner{display:flex;align-items:center;gap:22px;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,#38BDF8,#2563EB);font-size:1.15rem;
  box-shadow:0 0 0 1px rgba(56,189,248,.45),0 10px 26px -12px rgba(37,99,235,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.14}
.brand-text strong{font-size:.96rem;font-weight:700;letter-spacing:-.01em}
.brand-text small{font-size:.68rem;color:var(--dim);letter-spacing:.05em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{padding:9px 14px;border-radius:var(--radius-pill);font-size:.9rem;font-weight:500;color:var(--muted);transition:color .2s,background .2s}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.1)}
.nav-link.active{color:#fff;background:rgba(56,189,248,.16);box-shadow:inset 0 0 0 1px rgba(56,189,248,.32)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.header-actions .btn-solid{padding:10px 20px;font-size:.88rem}
.header-actions .btn-ghost{padding:9px 18px;font-size:.88rem}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(148,163,184,.28);background:rgba(15,30,60,.55);
  color:var(--ink);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--cyan)}
/* Hero */
.hero{position:relative;overflow:hidden;padding:clamp(52px,7vw,104px) 0 clamp(46px,6vw,78px)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:saturate(.85)}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(3,7,18,.97) 0%,rgba(3,7,18,.88) 42%,rgba(8,18,41,.7) 72%,rgba(37,99,235,.32) 100%);
}
.hero-veil::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.07) 1px,transparent 1px);
  background-size:54px 54px;opacity:.6;
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 78%);
  mask-image:linear-gradient(90deg,#000,transparent 78%);
}
.hero-grid{position:relative;z-index:3;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(28px,4vw,56px);align-items:center}
.hero h1{font-size:clamp(1.65rem,3.9vw,2.7rem);font-weight:800;letter-spacing:-.02em;margin-bottom:18px;text-shadow:0 6px 30px rgba(3,7,18,.7)}
.hero-lead{font-size:clamp(.98rem,1.2vw,1.08rem);color:#CBD5E1;max-width:640px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-facts{display:flex;flex-wrap:wrap;gap:clamp(20px,3vw,38px)}
.fact strong{display:block;font-size:1.5rem;font-weight:700;color:#fff;line-height:1.2}
.fact span{font-size:.8rem;color:var(--muted)}
/* Coupon wall */
.coupon-wall{display:flex;flex-direction:column;gap:14px}
.coupon{
  position:relative;overflow:hidden;padding:22px;
  background:linear-gradient(155deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--glass-brd);border-radius:var(--radius);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.coupon--main{border-color:rgba(56,189,248,.42);box-shadow:var(--glow),var(--shadow)}
.coupon--main::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(80% 60% at 100% 0%,rgba(56,189,248,.24),transparent 62%);
}
.coupon-head{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.tag{font-size:.68rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:5px 12px;border-radius:var(--radius-pill);border:1px solid rgba(56,189,248,.35);background:rgba(56,189,248,.14);color:var(--cyan)}
.tag--hot{color:#04101f;background:linear-gradient(135deg,#38BDF8,#2563EB);border-color:transparent}
.coupon-time{font-size:.8rem;color:var(--muted)}
.coupon-match{
  position:relative;z-index:2;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;
  padding:14px 0;border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);
}
.team{display:flex;align-items:center;gap:9px;font-weight:600;font-size:.95rem}
.team:last-child{justify-content:flex-end}
.team-badge{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-size:.68rem;font-weight:700;background:rgba(56,189,248,.14);border:1px solid rgba(56,189,248,.3);color:var(--cyan);flex-shrink:0}
.vs{font-size:.7rem;font-weight:700;color:var(--dim);letter-spacing:.12em}
.odds-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:16px 0}
.odd-cell{background:rgba(3,7,18,.52);border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px}
.odd-cell span{display:block;font-size:.66rem;color:var(--dim);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}
.odd-cell strong{display:block;font-size:1.05rem;font-weight:700;color:#fff}
.odd-cell em{font-style:normal;font-size:.78rem;color:var(--cyan)}
.coupon-note{position:relative;z-index:2;margin:12px 0 0;font-size:.75rem;color:var(--dim)}
.coupon-mini-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.coupon-mini{
  padding:14px 16px;border:1px solid var(--glass-brd);border-radius:var(--radius-sm);
  background:rgba(8,18,41,.62);display:flex;flex-direction:column;gap:4px;
  transition:border-color .22s,transform .22s;
}
.coupon-mini:hover{border-color:rgba(56,189,248,.45);transform:translateY(-2px)}
.mini-time{font-size:.72rem;color:var(--cyan);font-weight:600;letter-spacing:.06em}
.mini-match{font-size:.88rem;font-weight:600;color:#fff}
.mini-odd{font-size:.76rem;color:var(--muted)}
/* Pillars */
.pillars{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.pillar{
  padding:26px;border:1px solid var(--glass-brd);border-radius:var(--radius);
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.pillar:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.45);box-shadow:var(--shadow-soft)}
.pillar-ico{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.3);color:var(--cyan);font-size:1.1rem;margin-bottom:16px}
.pillar h3{font-size:1.08rem}
.pillar p{margin:0;font-size:.9rem;color:var(--muted)}
/* Odds table */
.table-shell{border:1px solid var(--glass-brd);border-radius:var(--radius);background:rgba(8,18,41,.62);overflow-x:auto;box-shadow:var(--shadow-soft)}
.odds-table{width:100%;min-width:820px;border-collapse:collapse}
.odds-table th{
  text-align:left;padding:14px 16px;font-size:.7rem;font-weight:600;letter-spacing:.1em;
  text-transform:uppercase;color:var(--dim);border-bottom:1px solid var(--line);white-space:nowrap;
}
.odds-table td{padding:15px 16px;border-bottom:1px solid rgba(148,163,184,.08);font-size:.9rem;vertical-align:middle}
.odds-table tbody tr{transition:background .2s}
.odds-table tbody tr:hover{background:rgba(56,189,248,.06)}
.odds-table tbody tr:last-child td{border-bottom:0}
.match-name{font-weight:600;color:#fff;display:block}
.match-meta{font-size:.74rem;color:var(--dim)}
.time-cell{font-weight:600;color:var(--holo);white-space:nowrap}
.trend{display:inline-block;font-size:.7rem;font-weight:600;padding:4px 10px;border-radius:var(--radius-pill);border:1px solid transparent;white-space:nowrap}
.trend.up{color:#34D399;border-color:rgba(52,211,153,.4);background:rgba(52,211,153,.1)}
.trend.flat{color:var(--holo);border-color:rgba(96,165,250,.4);background:rgba(96,165,250,.1)}
.trend.down{color:#F87171;border-color:rgba(248,113,113,.4);background:rgba(248,113,113,.1)}
.table-note{margin:16px 0 0;font-size:.8rem;color:var(--dim)}
/* Markets */
.market-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.market{
  display:flex;gap:14px;padding:20px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(8,18,41,.55);transition:border-color .22s,transform .22s,background .22s;
}
.market:hover{border-color:rgba(56,189,248,.45);transform:translateY(-3px);background:rgba(11,26,58,.75)}
.market-ico{width:42px;height:42px;flex-shrink:0;border-radius:12px;display:grid;place-items:center;background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.26);color:var(--cyan)}
.market h3{font-size:1rem;margin-bottom:6px}
.market p{margin:0;font-size:.87rem;color:var(--muted)}
/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);counter-reset:step}
.step{position:relative;padding-top:30px;border-top:1px solid var(--line)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:-15px;left:0;font-size:.74rem;font-weight:700;color:var(--cyan);
  background:var(--bg-0);padding:4px 11px;border:1px solid rgba(56,189,248,.35);border-radius:var(--radius-pill);
}
.step h3{font-size:1rem;margin-bottom:8px}
.step p{margin:0;font-size:.87rem;color:var(--muted)}
/* Compare */
.compare{border:1px solid var(--glass-brd);border-radius:var(--radius);overflow:hidden;background:rgba(8,18,41,.5)}
.compare-row{display:grid;grid-template-columns:1.05fr 1fr 1fr;border-bottom:1px solid rgba(148,163,184,.1)}
.compare-row:last-child{border-bottom:0}
.compare-row>div{padding:16px 18px;font-size:.88rem;color:#CBD5E1}
.compare-row>div:first-child{color:var(--muted);font-weight:500}
.compare-head{background:rgba(56,189,248,.09)}
.compare-head>div{color:#fff;font-weight:700;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase}
/* Stats + quotes */
.stats-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:clamp(26px,3.4vw,42px)}
.stat{background:rgba(8,18,41,.88);padding:22px}
.stat strong{display:block;font-size:1.6rem;font-weight:700;color:#fff;line-height:1.2}
.stat span{font-size:.8rem;color:var(--muted)}
.quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.quote{padding:22px;border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(8,18,41,.55);display:flex;flex-direction:column;gap:14px}
.quote p{margin:0;font-size:.92rem;color:#CBD5E1}
.quote-author{display:flex;align-items:center;gap:10px;font-size:.8rem;color:var(--muted);margin-top:auto}
.avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#38BDF8,#2563EB);color:#04101f;font-weight:700;font-size:.78rem;flex-shrink:0}
/* Split */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4vw,52px);align-items:center}
.split-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--glass-brd);box-shadow:var(--shadow)}
.split-media img{width:100%;height:100%;object-fit:cover;min-height:300px}
.check-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px dashed var(--line);font-size:.93rem;color:#CBD5E1}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--cyan);margin-top:5px;flex-shrink:0}
/* FAQ */
.faq{display:grid;gap:12px;max-width:920px}
.faq-item{border:1px solid var(--glass-brd);border-radius:var(--radius-sm);background:rgba(8,18,41,.55);overflow:hidden;transition:border-color .22s}
.faq-item:hover{border-color:rgba(56,189,248,.35)}
.faq-item summary{
  cursor:pointer;list-style:none;position:relative;
  padding:17px 52px 17px 20px;font-weight:600;font-size:.98rem;color:#E2E8F0;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:1.25rem;font-weight:400;color:var(--cyan);transition:transform .2s;
}
.faq-item[open] summary{color:#fff}
.faq-item[open] summary::after{content:"–";transform:translateY(-50%) rotate(180deg)}
.faq-body{padding:0 20px 18px;font-size:.9rem;color:var(--muted)}
/* CTA */
.cta-band{
  position:relative;overflow:hidden;padding:clamp(28px,4vw,54px);
  border:1px solid var(--glass-brd);border-radius:calc(var(--radius) + 6px);
  background:radial-gradient(120% 140% at 12% 0%,rgba(37,99,235,.34),transparent 62%),linear-gradient(150deg,var(--glass-a),rgba(3,7,18,.92));
  box-shadow:var(--shadow);
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(24px,3.4vw,44px);align-items:center;position:relative;z-index:2}
.cta-band h2{font-size:clamp(1.4rem,2.7vw,2rem)}
.cta-band p{color:#CBD5E1;margin-bottom:0}
.form-row{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 10px}
.form-control-x{
  flex:1;min-width:200px;padding:13px 20px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(3,7,18,.62);color:#fff;
  transition:border-color .2s,box-shadow .2s;
}
.form-control-x::placeholder{color:var(--dim)}
.form-control-x:focus{outline:none;border-color:var(--cyan);box-shadow:var(--glow)}
.form-hint{font-size:.76rem;color:var(--dim);margin:0}
.guarantee{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);margin-top:clamp(24px,3vw,38px);position:relative;z-index:2}
.g-item{display:flex;gap:12px;align-items:flex-start;font-size:.85rem;color:var(--muted)}
.g-item i{color:var(--cyan);margin-top:4px}
/* Footer */
.site-footer{background:linear-gradient(180deg,rgba(8,18,41,.4),rgba(3,7,18,.98));border-top:1px solid rgba(56,189,248,.14);padding:clamp(44px,5.4vw,70px) 0 26px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(22px,3vw,40px);padding-bottom:34px;border-bottom:1px solid var(--line)}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:.87rem;color:var(--muted);max-width:360px}
.age-note{display:inline-flex;align-items:center;gap:8px;font-size:.75rem;color:var(--holo);border:1px solid rgba(96,165,250,.3);background:rgba(56,189,248,.08);padding:6px 13px;border-radius:var(--radius-pill)}
.footer-col h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;color:#fff;margin-bottom:14px}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:.87rem;color:var(--muted);transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;padding-top:22px;font-size:.78rem;color:var(--dim)}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:104px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 18px;border-radius:var(--radius-pill);
  background:rgba(7,7,13,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,10,20,.9),rgba(7,10,20,.9)),linear-gradient(135deg,#38BDF8,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  color:#fff;font-weight:600;font-size:.84rem;opacity:.85;
  transition:opacity .25s,transform .25s,box-shadow .25s;
  min-height:52px;
}
.fab:hover{opacity:1;transform:translateY(-3px);box-shadow:0 0 34px rgba(56,189,248,.72)}
.fab:active{transform:translateY(0) scale(.96)}
.fab-ico{font-size:1.05rem;color:var(--cyan)}
.fab:hover .fab-ico{animation:flick .5s ease-in-out 2}
.fab-dot{position:absolute;top:6px;right:8px;width:9px;height:9px;border-radius:50%;background:#EC4899;box-shadow:0 0 10px #EC4899;animation:pulse 1.7s infinite}
@keyframes flick{0%,100%{opacity:1}50%{opacity:.35}}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.35);opacity:.65}}
/* Bottom bar */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  background:rgba(3,7,18,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-top:1px solid rgba(56,189,248,.2);padding:11px 0;
}
.bottom-bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px}
.bottom-bar strong{display:block;font-size:.92rem;color:#fff}
.bottom-bar small{display:block;font-size:.75rem;color:var(--muted)}
/* Responsive */
@media (max-width:1100px){
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-lead{max-width:100%}
  .pillars,.market-grid,.quotes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:38px}
  .stats-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:991.98px){
  .main-nav{
    position:fixed;top:74px;left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:12px 20px 20px;max-height:calc(100vh - 74px);overflow-y:auto;
    background:rgba(3,7,18,.97);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--glass-brd);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:transform .25s ease,opacity .25s ease;
  }
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-link{padding:12px 14px;font-size:.96rem}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-ghost{padding:8px 14px;font-size:.82rem}
  .header-actions .btn-solid{padding:9px 15px;font-size:.82rem}
  .split{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1fr 1fr}
  .compare-row>div:first-child{grid-column:1 / -1;background:rgba(56,189,248,.05);font-weight:600;color:#fff}
}
@media (max-width:768px){
  body{padding-bottom:104px}
  .brand-text small{display:none}
  .pillars,.market-grid,.quotes{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr}
  .guarantee{grid-template-columns:1fr}
  .bottom-bar .wrap{justify-content:center;text-align:center}
  .bottom-bar small{display:none}
  .fab{bottom:96px}
}
@media (max-width:520px){
  .header-inner{gap:10px;min-height:66px}
  .brand-mark{width:38px;height:38px;font-size:1rem}
  .brand-text strong{font-size:.82rem}
  .header-actions .btn-ghost{display:inline-flex;padding:7px 11px;font-size:.76rem}
  .header-actions .btn-solid{padding:8px 12px;font-size:.76rem}
  .hero-facts{gap:18px}
  .fact strong{font-size:1.25rem}
  .odds-grid{grid-template-columns:1fr}
  .coupon-mini-row{grid-template-columns:1fr}
  .stats-row{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .fab{padding:0;width:56px;height:56px;justify-content:center}
  .fab .fab-txt{display:none}
  .compare-row{grid-template-columns:1fr}
  .compare-row>div{padding:12px 16px}
}

/* roulang page: category2 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass-a:rgba(17,34,68,.74);
  --glass-b:rgba(8,18,41,.62);
  --glass-brd:rgba(56,189,248,.18);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --ink:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --line:rgba(148,163,184,.16);
  --radius:20px;
  --radius-sm:13px;
  --radius-pill:999px;
  --shadow:0 22px 60px -24px rgba(2,8,23,.95);
  --shadow-soft:0 12px 34px -20px rgba(2,8,23,.9);
  --glow:0 0 28px rgba(56,189,248,.32);
  --gap:clamp(18px,2.4vw,28px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  background:var(--bg-0);
  color:var(--ink);
  font-size:16px;
  line-height:1.65;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-bottom:86px;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0 0 12px;line-height:1.26;font-weight:700;letter-spacing:-.015em}
h1{font-weight:800}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(16px,3vw,28px)}
.section{padding:clamp(56px,7vw,96px) 0;position:relative}
.section--tint{background:linear-gradient(180deg,rgba(8,18,41,0) 0%,rgba(11,26,58,.62) 45%,rgba(8,18,41,0) 100%)}
.section--deep{background:radial-gradient(120% 90% at 12% 0%,rgba(37,99,235,.18),transparent 58%),var(--bg-1)}
.grid-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(56,189,248,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.055) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(80% 60% at 50% 40%,#000 30%,transparent 100%);
  mask-image:radial-gradient(80% 60% at 50% 40%,#000 30%,transparent 100%);
}
.section>.wrap{position:relative;z-index:2}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.09);
  border:1px solid rgba(56,189,248,.28);border-radius:var(--radius-pill);
  padding:6px 14px;margin-bottom:18px;
}
.eyebrow i{font-size:.75rem}
.section-head{max-width:800px;margin-bottom:clamp(30px,4vw,48px)}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:1.02rem;margin:0}
.lead-muted{color:var(--muted)}
.divider{height:1px;background:linear-gradient(90deg,rgba(56,189,248,.4),rgba(56,189,248,0) 70%);border:0;margin:0 0 28px}
/* Buttons */
.btn-solid,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--radius-pill);font-weight:600;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  border:1px solid transparent;white-space:nowrap;text-align:center;
}
.btn-solid{
  padding:13px 26px;color:#04101f;
  background:linear-gradient(135deg,#38BDF8 0%,#2563EB 100%);
  box-shadow:0 0 0 1px rgba(56,189,248,.4),0 16px 34px -16px rgba(37,99,235,.95);
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.7),0 0 34px rgba(56,189,248,.55);color:#04101f}
.btn-solid:active{transform:translateY(0) scale(.985)}
.btn-ghost{
  padding:12px 24px;color:var(--ink);
  border-color:rgba(96,165,250,.34);
  background:rgba(15,30,60,.42);
}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(56,189,248,.14);color:#fff;transform:translateY(-2px)}
.btn-line{
  padding:9px 18px;font-size:.86rem;font-weight:600;
  border-color:rgba(148,163,184,.3);color:var(--holo);background:transparent;
}
.btn-line:hover{border-color:var(--cyan);color:#fff;background:rgba(56,189,248,.1)}
.btn-lg{padding:15px 30px;font-size:1.02rem}
/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.86);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.14);
}
.header-inner{display:flex;align-items:center;gap:22px;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,#38BDF8,#2563EB);font-size:1.15rem;
  box-shadow:0 0 0 1px rgba(56,189,248,.45),0 10px 26px -12px rgba(37,99,235,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.14}
.brand-text strong{font-size:.96rem;font-weight:700;letter-spacing:-.01em}
.brand-text small{font-size:.68rem;color:var(--dim);letter-spacing:.05em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  padding:9px 14px;border-radius:var(--radius-pill);font-size:.9rem;font-weight:500;
  color:var(--muted);transition:color .2s,background .2s,box-shadow .2s;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.1)}
.nav-link.active{color:#fff;background:rgba(56,189,248,.16);box-shadow:inset 0 0 0 1px rgba(56,189,248,.32)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.header-actions .btn-solid{padding:10px 20px;font-size:.88rem}
.header-actions .btn-ghost{padding:9px 18px;font-size:.88rem}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(148,163,184,.28);background:rgba(15,30,60,.55);
  color:var(--ink);cursor:pointer;place-items:center;
}
.nav-toggle:hover{border-color:var(--cyan)}
/* Hero */
.cat-hero{position:relative;overflow:hidden;padding:clamp(54px,7vw,104px) 0 clamp(44px,5vw,72px)}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  transform:scale(1.04);filter:saturate(.85);
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(3,7,18,.96) 0%,rgba(3,7,18,.88) 42%,rgba(8,18,41,.7) 72%,rgba(37,99,235,.32) 100%);
}
.hero-veil::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.07) 1px,transparent 1px);
  background-size:54px 54px;opacity:.6;
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 78%);
  mask-image:linear-gradient(90deg,#000,transparent 78%);
}
.cat-hero .wrap{position:relative;z-index:3}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8rem;color:var(--dim);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--cyan)}
.crumb i{font-size:.6rem}
.cat-hero h1{
  font-size:clamp(1.65rem,4vw,2.85rem);
  margin-bottom:18px;letter-spacing:-.02em;line-height:1.2;
  text-shadow:0 6px 30px rgba(3,7,18,.7);
}
.hero-lead{font-size:clamp(1rem,1.35vw,1.08rem);color:#CBD5E1;max-width:660px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:26px}
.chip-row{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  display:inline-flex;align-items:center;gap:7px;font-size:.78rem;font-weight:500;
  color:#D7E5F7;background:rgba(15,30,60,.55);border:1px solid var(--glass-brd);
  border-radius:var(--radius-pill);padding:6px 13px;
}
.chip i{color:var(--cyan);font-size:.74rem}
/* Roadmap panel */
.panel-road{
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--glass-brd);border-radius:var(--radius);
  padding:clamp(20px,2.4vw,28px);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.panel-head h2{font-size:1.05rem;margin:0}
.panel-head span{font-size:.74rem;color:var(--cyan);letter-spacing:.1em;text-transform:uppercase}
.roadmap{position:relative;padding-left:6px}
.roadmap::before{content:"";position:absolute;left:21px;top:10px;bottom:26px;width:1px;background:linear-gradient(180deg,rgba(56,189,248,.6),rgba(56,189,248,.08))}
.roadmap-item{position:relative;display:grid;grid-template-columns:44px 1fr;gap:14px;padding-bottom:18px}
.roadmap-item:last-child{padding-bottom:6px}
.roadmap-dot{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  font-size:.82rem;font-weight:700;color:#04101f;
  background:linear-gradient(140deg,#38BDF8,#2563EB);
  box-shadow:0 0 0 1px rgba(56,189,248,.5),0 10px 24px -14px rgba(37,99,235,.95);
}
.roadmap-item.is-next .roadmap-dot{background:linear-gradient(140deg,#60A5FA,#1D4ED8);color:#fff}
.roadmap-item strong{display:block;font-size:.94rem;font-weight:600}
.roadmap-item span{display:block;font-size:.83rem;color:var(--muted);line-height:1.55}
.sub-form{margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}
.sub-form label{display:block;font-size:.82rem;color:var(--muted);margin-bottom:9px}
.sub-input{
  width:100%;padding:13px 16px;border-radius:var(--radius-sm);
  border:1px solid rgba(148,163,184,.26);background:rgba(3,7,18,.7);color:var(--ink);
  transition:border-color .2s,box-shadow .2s;
}
.sub-input::placeholder{color:var(--dim)}
.sub-input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,189,248,.16)}
.sub-form .btn-solid{width:100%;margin-top:11px}
.form-note{font-size:.78rem;color:var(--dim);margin-top:10px}
.form-msg{font-size:.83rem;color:var(--cyan);margin-top:10px;min-height:20px}
/* Generic cards */
.card-glass{
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--glass-brd);border-radius:var(--radius);
  padding:clamp(20px,2.3vw,26px);height:100%;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card-glass:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.45);box-shadow:0 20px 46px -24px rgba(37,99,235,.9),var(--glow)}
.card-ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-size:1.1rem;color:var(--cyan);background:rgba(56,189,248,.12);
  border:1px solid rgba(56,189,248,.26);margin-bottom:16px;
}
.card-glass h3{font-size:1.05rem;margin-bottom:9px}
.card-glass p{color:var(--muted);font-size:.93rem}
.tagline{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--holo);margin-bottom:10px}
/* Type list */
.type-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.type-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--radius-sm);
  background:rgba(8,18,41,.6);border:1px solid var(--line);
  transition:border-color .2s,background .2s,transform .2s;
}
.type-item:hover{border-color:rgba(56,189,248,.4);background:rgba(17,34,68,.62);transform:translateX(3px)}
.type-item i{color:var(--cyan);margin-top:5px;font-size:.95rem}
.type-item strong{display:block;font-size:.95rem;font-weight:600;margin-bottom:3px}
.type-item span{font-size:.86rem;color:var(--muted);line-height:1.55}
/* Steps */
.step-list{display:grid;gap:14px}
.step-item{
  display:grid;grid-template-columns:58px 1fr;gap:18px;align-items:flex-start;
  padding:18px 20px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:linear-gradient(120deg,rgba(17,34,68,.55),rgba(8,18,41,.35));
}
.step-num{
  width:58px;height:58px;border-radius:16px;display:grid;place-items:center;
  font-weight:700;font-size:1.05rem;color:#04101f;
  background:linear-gradient(140deg,#60A5FA,#2563EB);
  box-shadow:0 0 0 1px rgba(56,189,248,.45);
}
.step-item h3{font-size:1rem;margin-bottom:6px}
.step-item p{color:var(--muted);font-size:.9rem;margin:0}
.step-meta{display:inline-block;font-size:.75rem;color:var(--cyan);margin-top:8px;letter-spacing:.06em;text-transform:uppercase}
/* Board */
.board{border:1px solid var(--glass-brd);border-radius:var(--radius);overflow:hidden;background:rgba(6,13,31,.72)}
.board-head,.board-row{display:grid;grid-template-columns:1.7fr .8fr .7fr .7fr 1.5fr;gap:14px;align-items:center}
.board-head{
  padding:14px 20px;font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--holo);background:rgba(17,34,68,.7);border-bottom:1px solid var(--glass-brd);
}
.board-row{padding:16px 20px;border-bottom:1px solid var(--line);transition:background .2s}
.board-row:last-child{border-bottom:0}
.board-row:hover{background:rgba(56,189,248,.07)}
.board-match strong{display:block;font-size:.96rem;font-weight:600}
.board-match span{font-size:.78rem;color:var(--dim)}
.board-cell{font-size:.9rem;color:#D7E5F7}
.board-cell.odds{font-weight:700;color:var(--cyan)}
.board-note{font-size:.85rem;color:var(--muted)}
.board-note b{color:#fff;font-weight:600}
.badge-soft{
  display:inline-block;font-size:.7rem;padding:3px 9px;border-radius:var(--radius-pill);
  background:rgba(56,189,248,.14);color:var(--cyan);border:1px solid rgba(56,189,248,.3);
}
/* Stat strip */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  border:1px solid var(--glass-brd);border-radius:var(--radius);overflow:hidden;background:var(--glass-brd);
}
.stat-cell{background:rgba(8,18,41,.9);padding:24px 20px}
.stat-cell strong{display:block;font-size:clamp(1.4rem,2.6vw,1.9rem);font-weight:800;color:var(--cyan);line-height:1.2}
.stat-cell span{font-size:.84rem;color:var(--muted)}
/* Quotes */
.quote{padding:22px 22px 20px;border-radius:var(--radius);background:linear-gradient(160deg,rgba(17,34,68,.7),rgba(8,18,41,.5));border:1px solid var(--glass-brd);height:100%}
.quote i.q{color:var(--cyan);opacity:.6;font-size:1.1rem}
.quote p{font-size:.93rem;color:#D7E5F7;margin:12px 0 16px}
.quote footer{display:flex;align-items:center;gap:11px;font-size:.85rem;color:var(--muted)}
.avatar{width:38px;height:38px;border-radius:12px;object-fit:cover;border:1px solid var(--glass-brd)}
/* Compare */
.compare{display:grid;grid-template-columns:1.1fr 1fr 1fr;border:1px solid var(--glass-brd);border-radius:var(--radius);overflow:hidden;background:rgba(6,13,31,.6)}
.compare>div{padding:15px 18px;border-bottom:1px solid var(--line);font-size:.9rem}
.compare .ch{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;background:rgba(17,34,68,.72);color:var(--holo)}
.compare .cl{color:var(--muted)}
.compare .yes{color:#A7F3D0}
.compare .yes i{color:#10B981;margin-right:7px}
.compare .no{color:#94A3B8}
.compare .no i{color:#64748B;margin-right:7px}
/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(8,18,41,.62);overflow:hidden;transition:border-color .2s}
.faq-item[open]{border-color:rgba(56,189,248,.42);background:rgba(17,34,68,.6)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:17px 20px;font-weight:600;font-size:.98rem;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--cyan);font-size:.8rem;transition:transform .25s}
.faq-item[open] summary::after{content:"\f068"}
.faq-item p{padding:0 20px 19px;color:var(--muted);font-size:.92rem;margin:0}
/* Channels */
.chan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.chan-tile{
  position:relative;display:flex;flex-direction:column;justify-content:space-between;gap:22px;
  min-height:190px;padding:24px;border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(17,34,68,.8),rgba(8,18,41,.55));
  border:1px solid var(--glass-brd);
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.chan-tile:hover{transform:translateY(-5px);border-color:rgba(56,189,248,.5);box-shadow:0 22px 50px -26px rgba(37,99,235,.95),var(--glow)}
.chan-tile h3{font-size:1.06rem;margin-bottom:8px}
.chan-tile p{font-size:.88rem;color:var(--muted);margin:0}
.chan-ico{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;background:rgba(56,189,248,.13);border:1px solid rgba(56,189,248,.28);color:var(--cyan)}
.chan-link{display:inline-flex;align-items:center;gap:8px;font-size:.86rem;font-weight:600;color:var(--cyan)}
.chan-link i{transition:transform .2s}
.chan-tile:hover .chan-link i{transform:translateX(4px)}
/* CTA band */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius);
  padding:clamp(28px,4vw,48px);
  background:radial-gradient(120% 140% at 8% 0%,rgba(37,99,235,.4),transparent 60%),linear-gradient(150deg,rgba(17,34,68,.92),rgba(3,7,18,.9));
  border:1px solid rgba(56,189,248,.3);
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(1.35rem,2.6vw,2rem);margin-bottom:12px}
.cta-band p{color:#CBD5E1;max-width:640px;margin-bottom:24px}
.cta-actions{display:flex;flex-wrap:wrap;gap:13px}
/* Footer */
.site-footer{margin-top:clamp(40px,5vw,70px);background:linear-gradient(180deg,rgba(8,18,41,.6),rgba(3,7,18,.98));border-top:1px solid var(--glass-brd);padding:clamp(42px,5vw,68px) 0 26px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:clamp(22px,3vw,40px)}
.footer-brand p{color:var(--muted);font-size:.9rem;margin:16px 0 16px;max-width:420px}
.age-note{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;color:var(--holo);border:1px solid var(--glass-brd);border-radius:var(--radius-pill);padding:6px 13px;background:rgba(15,30,60,.5)}
.footer-col h4{font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--holo);margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:.9rem;color:var(--muted);transition:color .2s,padding-left .2s}
.footer-col a:hover{color:var(--cyan);padding-left:4px}
.footer-bottom{
  margin-top:clamp(28px,4vw,44px);padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:.8rem;color:var(--dim);
}
/* FAB */
.fab-support{
  position:fixed;left:16px;bottom:104px;z-index:55;
  display:inline-flex;align-items:center;gap:10px;
  min-height:56px;padding:0 20px;border-radius:var(--radius-pill);
  background:rgba(7,7,13,.82);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.85),rgba(7,7,13,.85)),linear-gradient(120deg,#38BDF8,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:#fff;font-size:.88rem;font-weight:600;
  box-shadow:0 0 20px rgba(56,189,248,.45);
  opacity:.78;transition:opacity .22s,transform .22s,box-shadow .22s;
}
.fab-support i{color:var(--cyan);font-size:1.02rem}
.fab-support:hover{opacity:1;transform:scale(1.05);box-shadow:0 0 34px rgba(56,189,248,.7)}
.fab-support:active{transform:scale(.96)}
.fab-support .dot{position:absolute;top:8px;right:10px;width:10px;height:10px;border-radius:50%;background:#38BDF8;box-shadow:0 0 0 2px rgba(3,7,18,.9);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:.5;transform:scale(.9)}50%{opacity:1;transform:scale(1.15)}}
/* Bottom sticky CTA */
.bottom-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:58;
  background:rgba(3,7,18,.94);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-top:1px solid rgba(56,189,248,.22);
}
.bottom-cta .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px}
.bottom-cta strong{font-size:.95rem;display:block}
.bottom-cta span{font-size:.8rem;color:var(--muted)}
/* Responsive */
@media (max-width:1100px){
  .board-head,.board-row{grid-template-columns:1.5fr .8fr .7fr .7fr 1.3fr;gap:10px;font-size:.88rem}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:991px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;margin:0;
    padding:16px clamp(16px,3vw,28px) 22px;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--glass-brd);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .25s ease,transform .25s ease;
    max-height:calc(100vh - 74px);overflow-y:auto;
  }
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-link{padding:12px 14px;font-size:.95rem}
  .nav-toggle{display:grid}
  .header-actions .btn-ghost,.header-actions .btn-solid{padding:8px 14px;font-size:.82rem}
  .type-list{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .chan-grid{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .compare .ch{background:rgba(17,34,68,.9)}
  .board-head{display:none}
  .board-row{grid-template-columns:1fr;gap:8px;padding:18px}
  .board-cell{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed rgba(148,163,184,.14);padding-bottom:7px}
  .board-cell::before{content:attr(data-label);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--dim)}
  .board-note{display:block;border-bottom:0}
  .board-note::before{display:block;margin-bottom:4px}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .brand-text small{display:none}
  .hero-cta .btn-solid,.hero-cta .btn-ghost{width:100%}
  .step-item{grid-template-columns:48px 1fr;gap:14px;padding:16px}
  .step-num{width:48px;height:48px;font-size:.95rem;border-radius:14px}
  .bottom-cta .wrap{min-height:64px}
  .bottom-cta strong{font-size:.86rem}
  .bottom-cta span{display:none}
  .fab-support{bottom:96px;padding:0 16px;font-size:.82rem}
}
@media (max-width:520px){
  .brand-text{display:none}
  .header-actions .btn-ghost{padding:7px 11px;font-size:.76rem}
  .header-actions .btn-solid{padding:7px 12px;font-size:.76rem}
  .nav-toggle{width:38px;height:38px}
  .stat-strip{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
  .fab-support span{display:none}
  .fab-support{padding:0 16px;border-radius:50%;width:56px;height:56px;justify-content:center}
}

/* roulang page: category3 */
:root{
  --bg-0:#030712;
  --bg-1:#081229;
  --bg-2:#0b1a3a;
  --glass-a:rgba(17,34,68,.74);
  --glass-b:rgba(8,18,41,.62);
  --glass-brd:rgba(56,189,248,.18);
  --blue:#2563EB;
  --cyan:#38BDF8;
  --holo:#60A5FA;
  --ink:#F8FAFC;
  --muted:#94A3B8;
  --dim:#64748B;
  --line:rgba(148,163,184,.16);
  --radius:20px;
  --radius-sm:13px;
  --radius-pill:999px;
  --shadow:0 22px 60px -24px rgba(2,8,23,.95);
  --shadow-soft:0 12px 34px -20px rgba(2,8,23,.9);
  --glow:0 0 28px rgba(56,189,248,.32);
  --gap:clamp(18px,2.4vw,28px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  background:var(--bg-0);
  color:var(--ink);
  font-size:16px;
  line-height:1.65;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-bottom:74px;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{line-height:1.25;font-weight:700;margin:0 0 12px}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(16px,3vw,30px)}
.section{padding:clamp(52px,6.5vw,92px) 0;position:relative}
.section--tint{background:linear-gradient(180deg,rgba(8,18,41,0) 0%,rgba(11,26,58,.62) 45%,rgba(8,18,41,0) 100%)}
.section--deep{background:radial-gradient(120% 90% at 12% 0%,rgba(37,99,235,.18),transparent 58%),var(--bg-1)}
.section>.wrap{position:relative;z-index:2}
.grid-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(56,189,248,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.055) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(80% 60% at 50% 40%,#000 30%,transparent 100%);
  mask-image:radial-gradient(80% 60% at 50% 40%,#000 30%,transparent 100%);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.09);
  border:1px solid rgba(56,189,248,.28);border-radius:var(--radius-pill);
  padding:6px 14px;margin-bottom:18px;
}
.section-head{max-width:800px;margin-bottom:clamp(28px,3.6vw,44px);text-align:left}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);margin-bottom:12px;letter-spacing:-.01em}
.section-head p{color:var(--muted);font-size:1.02rem;margin:0}
.section-head .eyebrow{margin-bottom:14px}
/* Buttons */
.btn-solid,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--radius-pill);font-weight:600;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-solid{
  padding:13px 26px;color:#04101f;
  background:linear-gradient(135deg,#38BDF8 0%,#2563EB 100%);
  box-shadow:0 0 0 1px rgba(56,189,248,.4),0 16px 34px -16px rgba(37,99,235,.95);
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(56,189,248,.7),0 0 34px rgba(56,189,248,.55);color:#04101f}
.btn-solid:active{transform:translateY(0) scale(.985)}
.btn-ghost{padding:12px 24px;color:var(--ink);border-color:rgba(96,165,250,.34);background:rgba(15,30,60,.42)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(56,189,248,.14);color:#fff;transform:translateY(-2px)}
.btn-line{padding:9px 18px;font-size:.86rem;font-weight:600;border-color:rgba(148,163,184,.3);color:var(--holo);background:transparent}
.btn-line:hover{border-color:var(--cyan);color:#fff;background:rgba(56,189,248,.1)}
.btn-lg{padding:15px 30px;font-size:1.02rem}
/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(3,7,18,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(56,189,248,.14);
}
.header-inner{display:flex;align-items:center;gap:22px;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,#38BDF8,#2563EB);font-size:1.15rem;
  box-shadow:0 0 0 1px rgba(56,189,248,.45),0 10px 26px -12px rgba(37,99,235,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.14}
.brand-text strong{font-size:.96rem;font-weight:700;letter-spacing:-.01em}
.brand-text small{font-size:.68rem;color:var(--dim);letter-spacing:.05em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{padding:9px 14px;border-radius:var(--radius-pill);font-size:.9rem;font-weight:500;color:var(--muted);transition:color .2s,background .2s}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.1)}
.nav-link.active{color:#fff;background:rgba(56,189,248,.16);box-shadow:inset 0 0 0 1px rgba(56,189,248,.32)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.header-actions .btn-solid{padding:10px 20px;font-size:.88rem}
.header-actions .btn-ghost{padding:9px 18px;font-size:.88rem}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(148,163,184,.28);background:rgba(15,30,60,.55);color:var(--ink);cursor:pointer}
.nav-toggle:hover{border-color:var(--cyan)}
/* Breadcrumb */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.82rem;color:var(--dim);padding:18px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--cyan)}
.crumb span.sep{opacity:.5}
.crumb .current{color:var(--holo)}
/* Hero */
.hero{position:relative;overflow:hidden;padding:clamp(34px,5vw,64px) 0 clamp(46px,6vw,78px)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.04);filter:saturate(.85)}
.hero-veil{position:absolute;inset:0;background:linear-gradient(105deg,rgba(3,7,18,.96) 0%,rgba(3,7,18,.88) 42%,rgba(8,18,41,.7) 72%,rgba(37,99,235,.32) 100%)}
.hero-veil::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,189,248,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.07) 1px,transparent 1px);
  background-size:54px 54px;opacity:.65;
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 78%);
  mask-image:linear-gradient(90deg,#000,transparent 78%);
}
.hero-grid{position:relative;z-index:3;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.95fr);gap:clamp(24px,3vw,46px);align-items:start}
.hero h1{font-size:clamp(1.75rem,4vw,2.85rem);font-weight:800;margin-bottom:18px;letter-spacing:-.02em;text-shadow:0 6px 30px rgba(3,7,18,.7)}
.hero-lead{font-size:clamp(1rem,1.3vw,1.08rem);color:#CBD5E1;max-width:680px;margin-bottom:24px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.hero-badges span{display:inline-flex;align-items:center;gap:7px;font-size:.79rem;font-weight:500;color:#BFDBFE;background:rgba(15,30,60,.6);border:1px solid rgba(96,165,250,.24);border-radius:var(--radius-pill);padding:6px 13px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;border:1px solid var(--glass-brd);border-radius:var(--radius);background:rgba(56,189,248,.14);overflow:hidden}
.hero-stats div{background:rgba(6,14,32,.86);padding:16px 14px}
.hero-stats b{display:block;font-size:1.4rem;font-weight:800;color:#fff;letter-spacing:-.01em}
.hero-stats small{display:block;font-size:.76rem;color:var(--muted);margin-top:3px;line-height:1.4}
/* Hero panel */
.hero-panel{
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--glass-brd);border-radius:var(--radius);
  padding:clamp(20px,2.4vw,28px);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-panel h3{font-size:1.06rem;margin-bottom:6px}
.hero-panel .panel-sub{font-size:.84rem;color:var(--muted);margin-bottom:18px}
.live-tag{display:inline-flex;align-items:center;gap:7px;font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#03121b;background:linear-gradient(135deg,#38BDF8,#60A5FA);border-radius:var(--radius-pill);padding:4px 11px;margin-bottom:12px}
.live-dot{width:7px;height:7px;border-radius:50%;background:#0f172a;box-shadow:0 0 0 3px rgba(3,18,27,.2);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.progress{height:8px;border-radius:var(--radius-pill);background:rgba(148,163,184,.18);overflow:hidden;margin:8px 0 6px}
.progress i{display:block;height:100%;width:72%;background:linear-gradient(90deg,#38BDF8,#2563EB);border-radius:var(--radius-pill)}
.panel-meta{display:flex;justify-content:space-between;font-size:.78rem;color:var(--muted);margin-bottom:18px}
.panel-list{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.panel-list li{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:#CBD5E1;line-height:1.5}
.panel-list i{color:var(--cyan);margin-top:4px;font-size:.8rem}
.panel-note{margin-top:18px;font-size:.76rem;color:var(--dim);border-top:1px dashed rgba(148,163,184,.22);padding-top:14px}
/* Stat tiles */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}
.stat-card{
  background:linear-gradient(165deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--glass-brd);border-radius:var(--radius);
  padding:20px;position:relative;overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.42);box-shadow:var(--shadow-soft),var(--glow)}
.stat-card .label{font-size:.76rem;letter-spacing:.09em;text-transform:uppercase;color:var(--dim);margin-bottom:9px}
.stat-card .value{font-size:clamp(1.5rem,2.4vw,1.95rem);font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.1}
.stat-card .desc{font-size:.85rem;color:var(--muted);margin-top:9px;line-height:1.55}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:.73rem;font-weight:600;border-radius:var(--radius-pill);padding:3px 10px;margin-top:11px}
.chip.up{color:#7CF3C0;background:rgba(16,185,129,.14);border:1px solid rgba(16,185,129,.3)}
.chip.down{color:#FCA5A5;background:rgba(239,68,68,.13);border:1px solid rgba(239,68,68,.28)}
.chip.flat{color:#BFDBFE;background:rgba(96,165,250,.13);border:1px solid rgba(96,165,250,.28)}
.mini-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);margin-top:var(--gap)}
.mini-card{background:rgba(6,14,32,.72);border:1px solid rgba(148,163,184,.14);border-radius:var(--radius-sm);padding:16px 18px}
.mini-card b{display:block;font-size:1.28rem;font-weight:700;color:#fff}
.mini-card small{display:block;font-size:.8rem;color:var(--muted);margin-top:2px;line-height:1.45}
.ticker{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:.82rem;color:var(--muted);background:rgba(6,14,32,.6);border:1px dashed rgba(56,189,248,.26);border-radius:var(--radius-sm);padding:12px 16px}
.ticker i{color:var(--cyan)}
/* Split blocks */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(22px,3vw,48px);align-items:center}
.feature-list{list-style:none;margin:0;padding:0;display:grid;gap:18px}
.feature-list li{display:flex;gap:14px;align-items:flex-start}
.feature-list .fi{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.28);color:var(--cyan);font-size:.95rem;
}
.feature-list h4{font-size:1rem;margin-bottom:5px}
.feature-list p{font-size:.9rem;color:var(--muted);margin:0}
.media-card{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--glass-brd);box-shadow:var(--shadow)}
.media-card img{width:100%;height:clamp(240px,34vw,360px);object-fit:cover}
.media-card .overlay{position:absolute;inset:auto 0 0 0;padding:18px 20px;background:linear-gradient(0deg,rgba(3,7,18,.94),transparent);display:flex;align-items:flex-end;justify-content:space-between;gap:14px}
.media-card .overlay strong{font-size:.95rem;color:#fff}
.media-card .overlay small{font-size:.76rem;color:var(--muted);display:block}
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap);margin-top:30px}
.compare-col{border-radius:var(--radius-sm);padding:20px;border:1px solid rgba(148,163,184,.16);background:rgba(6,14,32,.6)}
.compare-col h4{font-size:.95rem;margin-bottom:12px;display:flex;align-items:center;gap:9px}
.compare-col.off h4{color:#FCA5A5}
.compare-col.on{border-color:rgba(56,189,248,.36);background:rgba(37,99,235,.1)}
.compare-col.on h4{color:var(--cyan)}
.compare-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.compare-col li{font-size:.88rem;color:var(--muted);display:flex;gap:9px;align-items:flex-start;line-height:1.5}
.compare-col.on li{color:#CBD5E1}
/* Pattern cards */
.pattern-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.pattern-card{
  background:linear-gradient(165deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--glass-brd);border-radius:var(--radius);
  padding:24px;position:relative;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.pattern-card:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.42);box-shadow:var(--shadow-soft)}
.pattern-card .idx{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.8rem;font-weight:700;
  color:var(--cyan);letter-spacing:.14em;display:block;margin-bottom:12px;
}
.pattern-card h3{font-size:1.08rem;margin-bottom:9px}
.pattern-card p{font-size:.91rem;color:var(--muted);margin:0}
.pattern-card .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
/* Timeline */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:rgba(56,189,248,.16);border:1px solid var(--glass-brd);border-radius:var(--radius);overflow:hidden}
.timeline-step{background:rgba(6,14,32,.88);padding:24px 22px;position:relative}
.timeline-step .tmark{font-size:.74rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--cyan);margin-bottom:10px;display:block}
.timeline-step h3{font-size:1rem;margin-bottom:8px}
.timeline-step p{font-size:.86rem;color:var(--muted);margin:0}
.timeline-step::after{content:"";position:absolute;right:16px;top:24px;width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(56,189,248,.14)}
.timeline-step:last-child::after{background:#A3E635;box-shadow:0 0 0 4px rgba(163,230,53,.16)}
/* Channel matrix */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.channel-card{
  display:flex;flex-direction:column;gap:12px;
  background:linear-gradient(165deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--glass-brd);border-radius:var(--radius);
  padding:24px;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.channel-card:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.45);box-shadow:var(--shadow-soft),var(--glow)}
.channel-card .ch-icon{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.28);color:var(--cyan)}
.channel-card h3{font-size:1.05rem;margin:0}
.channel-card p{font-size:.88rem;color:var(--muted);margin:0}
.channel-card .ch-foot{margin-top:auto;font-size:.84rem;font-weight:600;color:var(--holo);display:flex;align-items:center;gap:8px}
.channel-card.is-current{border-color:rgba(56,189,248,.45)}
.badge-current{font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#03121b;background:linear-gradient(135deg,#38BDF8,#60A5FA);border-radius:var(--radius-pill);padding:3px 10px;align-self:flex-start}
/* Testimonials */
.voice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.voice-card{background:rgba(6,14,32,.68);border:1px solid rgba(148,163,184,.14);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:14px}
.voice-card .quote{font-size:.93rem;color:#CBD5E1;line-height:1.65;margin:0}
.voice-card .stars{color:#FBBF24;font-size:.8rem;letter-spacing:2px}
.voice-who{display:flex;align-items:center;gap:12px;margin-top:auto}
.voice-who img{width:46px;height:46px;border-radius:50%;object-fit:cover;border:1px solid rgba(56,189,248,.35)}
.voice-who b{display:block;font-size:.9rem}
.voice-who small{display:block;font-size:.76rem;color:var(--dim)}
.voice-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);margin-top:var(--gap)}
/* News */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.news-card{
  background:linear-gradient(165deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--glass-brd);border-radius:var(--radius);
  padding:22px;display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.42);box-shadow:var(--shadow-soft)}
.news-card .n-meta{font-size:.74rem;color:var(--dim);text-transform:uppercase;letter-spacing:.1em;display:flex;gap:10px;flex-wrap:wrap}
.news-card h3{font-size:1.02rem;margin:0;line-height:1.45}
.news-card h3 a:hover{color:var(--cyan)}
.news-card p{font-size:.87rem;color:var(--muted);margin:0}
.news-card .n-more{margin-top:auto;font-size:.84rem;font-weight:600;color:var(--holo);display:inline-flex;align-items:center;gap:8px}
.news-card .n-more:hover{color:#fff}
.news-foot{display:flex;justify-content:flex-start;margin-top:28px}
.empty-note{font-size:.95rem;color:var(--muted);background:rgba(6,14,32,.6);border:1px dashed rgba(56,189,248,.26);border-radius:var(--radius-sm);padding:20px 22px}
/* FAQ */
.faq-list{display:grid;gap:12px;max-width:940px}
.faq-item{border:1px solid rgba(148,163,184,.16);border-radius:var(--radius-sm);background:rgba(6,14,32,.62);overflow:hidden;transition:border-color .22s ease}
.faq-item:hover{border-color:rgba(56,189,248,.34)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-size:.98rem;font-weight:600;
  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:.75rem;color:var(--cyan);transition:transform .22s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 22px 20px;font-size:.92rem;color:var(--muted);line-height:1.7}
/* CTA band */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius);
  border:1px solid rgba(56,189,248,.28);
  background:linear-gradient(120deg,rgba(37,99,235,.28),rgba(3,7,18,.9) 55%),var(--bg-2);
  padding:clamp(28px,4vw,46px);
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(22px,3vw,42px);align-items:center;
}
.cta-band h2{font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:12px}
.cta-band p{color:#CBD5E1;font-size:.95rem;margin-bottom:0}
.cta-form{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.cta-form input[type=email]{
  flex:1 1 240px;min-width:0;padding:14px 18px;border-radius:var(--radius-pill);
  border:1px solid rgba(148,163,184,.28);background:rgba(3,7,18,.7);color:var(--ink);
}
.cta-form input[type=email]::placeholder{color:var(--dim)}
.cta-form input[type=email]:focus{border-color:var(--cyan);box-shadow:var(--glow);outline:none}
.form-note{font-size:.78rem;color:var(--muted);margin-top:12px}
/* Footer */
.site-footer{background:linear-gradient(180deg,rgba(6,14,32,.35),rgba(3,7,18,1));border-top:1px solid rgba(56,189,248,.14);padding:clamp(44px,5vw,72px) 0 32px}
.footer-top{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:clamp(22px,3vw,40px)}
.footer-brand p{font-size:.88rem;color:var(--muted);margin:16px 0 16px;max-width:420px}
.age-note{display:inline-flex;align-items:center;gap:9px;font-size:.78rem;color:#BFDBFE;background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.26);border-radius:var(--radius-pill);padding:7px 14px}
.footer-col h4{font-size:.86rem;letter-spacing:.1em;text-transform:uppercase;color:#fff;margin-bottom:16px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a{font-size:.88rem;color:var(--muted);transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--cyan);padding-left:4px}
.footer-bottom{margin-top:clamp(28px,3.6vw,46px);padding-top:22px;border-top:1px solid rgba(148,163,184,.14);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:.79rem;color:var(--dim)}
/* FAB */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:70;
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:2px solid transparent;
  background-image:linear-gradient(rgba(7,7,13,.85),rgba(7,7,13,.85)),linear-gradient(135deg,#38BDF8,#2563EB);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--cyan);font-size:1.2rem;
  box-shadow:0 0 20px rgba(6,182,212,.45);
  transition:transform .25s ease,box-shadow .25s ease,color .25s ease;
  animation:fabPulse 3.2s ease-in-out infinite;
}
.fab:hover{transform:scale(1.1);color:#fff;box-shadow:0 0 34px rgba(56,189,248,.75)}
.fab:active{transform:scale(.94)}
.fab .fab-dot{position:absolute;top:2px;right:2px;width:12px;height:12px;border-radius:50%;background:#EC4899;box-shadow:0 0 10px rgba(236,72,153,.9)}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(6,182,212,.4)}50%{box-shadow:0 0 30px rgba(56,189,248,.7)}}
/* Sticky CTA bar */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:65;background:rgba(3,7,18,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid rgba(56,189,248,.22)}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:62px;padding-top:9px;padding-bottom:9px}
.sticky-text{font-size:.87rem;color:#CBD5E1;display:flex;align-items:center;gap:10px}
.sticky-text i{color:#A3E635}
.sticky-inner .btn-solid{padding:11px 22px;font-size:.88rem}
.sticky-inner .btn-line{display:none}
/* Responsive */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .stat-grid,.mini-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .channel-grid,.voice-grid,.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
  .voice-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;margin:0;
    background:rgba(4,10,24,.98);border-bottom:1px solid rgba(56,189,248,.2);
    padding:16px clamp(16px,3vw,30px) 22px;
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px}
  .nav-toggle{display:grid;place-items:center}
  .header-inner{position:relative;justify-content:space-between}
  .header-actions{margin-left:auto}
  .header-actions .btn-ghost{padding:9px 14px}
  .cta-band{grid-template-columns:1fr}
}
@media (max-width:768px){
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pattern-grid{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .header-actions .btn-ghost{display:none}
  .sticky-text{font-size:.81rem}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .stat-grid,.mini-grid,.channel-grid,.voice-grid,.news-grid,.voice-strip,.timeline{grid-template-columns:1fr}
  .hero-cta .btn-solid,.hero-cta .btn-ghost{width:100%}
  .hero-stats{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .sticky-inner{flex-wrap:wrap;justify-content:center;text-align:center}
  .sticky-text{justify-content:center}
  .sticky-inner .btn-solid{width:100%}
  .fab{bottom:104px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}