/* roulang page: index */
:root{
  --bg:#080d12;
  --bg-2:#0b131a;
  --surface:#101a24;
  --surface-2:#16222e;
  --border:rgba(148,163,184,.15);
  --border-strong:rgba(148,163,184,.3);
  --text:#e9eef4;
  --text-soft:#b5c1cf;
  --muted:#8494a6;
  --gold:#f2b13c;
  --gold-soft:#fcd34d;
  --emerald:#2fd39a;
  --red:#ef5350;
  --radius-xl:24px;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 24px 55px -30px rgba(0,0,0,.95);
  --shadow-soft:0 12px 32px -20px rgba(0,0,0,.8);
  --maxw:1180px;
  --gap:clamp(16px,2.3vw,26px);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.24;letter-spacing:-.015em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,32px)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:12px;font-size:14.5px;font-weight:700;
  letter-spacing:.01em;border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--gold-soft),var(--gold));color:#1b1203;box-shadow:0 14px 32px -16px rgba(242,177,60,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 40px -16px rgba(242,177,60,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--border-strong);color:var(--text);background:rgba(148,163,184,.06)}
.btn-ghost:hover{background:rgba(148,163,184,.14);border-color:rgba(242,177,60,.5);color:var(--gold-soft)}
.btn-sm{padding:10px 17px;font-size:13.5px;border-radius:10px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(8,13,18,.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:16px;min-height:70px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  font-weight:800;font-size:14px;letter-spacing:.5px;color:#0a0f14;
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  box-shadow:0 10px 24px -12px rgba(242,177,60,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.22}
.brand-text strong{font-size:14.8px;letter-spacing:-.01em}
.brand-text small{font-size:11.5px;color:var(--muted);font-weight:500}

.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto}
.nav-link{
  padding:9px 13px;border-radius:10px;font-size:14px;font-weight:600;
  color:var(--text-soft);transition:.2s;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(148,163,184,.1)}
.nav-link.is-active{color:var(--gold-soft);background:rgba(242,177,60,.11)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:14px}

.nav-toggle{display:none;width:44px;height:44px;border-radius:11px;border:1px solid var(--border);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-soft);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(52px,7vw,86px) 0 clamp(46px,6vw,70px);border-bottom:1px solid var(--border)}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/128f5f76e88e2b44.jpg') center/cover no-repeat;
  opacity:.26;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(700px 440px at 10% 6%,rgba(242,177,60,.2),transparent 62%),
    radial-gradient(560px 400px at 90% 82%,rgba(47,211,154,.16),transparent 60%),
    linear-gradient(180deg,rgba(8,13,18,.7) 0%,rgba(8,13,18,.93) 58%,var(--bg) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:940px}
.hero h1{font-size:clamp(26px,4.1vw,44px);letter-spacing:-.02em;margin:0 0 20px;max-width:22ch}
.hero-lead{font-size:clamp(15.5px,1.5vw,18px);color:var(--text-soft);line-height:1.72;max-width:68ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;padding-top:26px;border-top:1px solid var(--border)}
.hero-chips li{
  font-size:13.4px;color:var(--text-soft);padding:9px 15px;border-radius:999px;
  border:1px solid var(--border);background:rgba(148,163,184,.06);
}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.4px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--gold-soft);padding:7px 14px;border-radius:999px;
  border:1px solid rgba(242,177,60,.28);background:rgba(242,177,60,.08);
  margin-bottom:20px;
}

/* ---------- Metrics ---------- */
.metrics{background:var(--bg-2);border-bottom:1px solid var(--border)}
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding-top:0;padding-bottom:0}
.metric{padding:30px 22px;border-left:1px solid var(--border)}
.metric:first-child{border-left:0;padding-left:0}
.metric strong{display:block;font-size:clamp(24px,3vw,32px);font-weight:800;color:var(--gold-soft);letter-spacing:-.02em}
.metric span{display:block;font-size:13.4px;color:var(--muted);margin-top:7px;line-height:1.5;max-width:220px}

/* ---------- Section basics ---------- */
.section{padding:clamp(56px,7vw,92px) 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:740px;margin-bottom:clamp(30px,4vw,48px)}
.section-head h2{font-size:clamp(22px,3vw,33px);margin-bottom:14px}
.section-lead{color:var(--text-soft);font-size:16.4px;line-height:1.72}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}

/* ---------- Overview ---------- */
.overview-wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(26px,4vw,52px);align-items:start}
.overview-list{display:flex;flex-direction:column;gap:6px}
.ov-item{padding:22px 0;border-bottom:1px solid var(--border)}
.ov-item:first-child{padding-top:0}
.ov-item:last-child{border-bottom:0;padding-bottom:0}
.ov-item h3{font-size:18.4px;margin-bottom:10px;color:var(--text)}
.ov-item p{color:var(--text-soft);font-size:15.4px;line-height:1.72}
.overview-media{position:relative;border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.overview-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/5;opacity:.92}
.overview-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:22px;
  background:linear-gradient(180deg,transparent,rgba(8,13,18,.94));
  font-size:13.6px;color:var(--text-soft);
}

/* ---------- Feature cards ---------- */
.feature-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:26px 24px 24px;transition:border-color .22s ease,transform .22s ease,background .22s ease;
}
.feature-card:hover{border-color:rgba(242,177,60,.42);transform:translateY(-3px);background:var(--surface-2)}
.feature-icon{
  display:inline-grid;place-items:center;width:44px;height:44px;border-radius:12px;
  font-size:14px;font-weight:800;letter-spacing:.06em;color:var(--gold-soft);
  background:rgba(242,177,60,.1);border:1px solid rgba(242,177,60,.26);margin-bottom:18px;
}
.feature-card h3{font-size:16.8px;margin-bottom:10px}
.feature-card p{color:var(--text-soft);font-size:14.6px;line-height:1.68}

/* ---------- Scene cards ---------- */
.scene-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:0;overflow:hidden;transition:border-color .22s ease,transform .22s ease;
}
.scene-card:hover{border-color:rgba(47,211,154,.4);transform:translateY(-3px)}
.scene-thumb{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--border)}
.scene-thumb img{width:100%;height:100%;object-fit:cover;opacity:.85;transition:transform .45s ease}
.scene-card:hover .scene-thumb img{transform:scale(1.05)}
.scene-body{padding:22px 22px 24px}
.scene-body h3{font-size:16.6px;margin-bottom:10px}
.scene-body p{color:var(--text-soft);font-size:14.5px;line-height:1.68}

/* ---------- Matrix ---------- */
.matrix{border:1px solid var(--border);border-radius:var(--radius-xl);overflow:hidden;background:var(--surface)}
.matrix-row{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:20px;align-items:center;padding:22px 26px;border-bottom:1px solid var(--border);
  transition:background .2s ease;
}
.matrix-row:last-child{border-bottom:0}
.matrix-row:hover{background:var(--surface-2)}
.matrix-name{display:flex;gap:16px;align-items:flex-start}
.matrix-idx{
  flex-shrink:0;width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  font-size:13px;font-weight:800;color:var(--gold-soft);
  background:rgba(242,177,60,.1);border:1px solid rgba(242,177,60,.24);
}
.matrix-name h3{font-size:16.4px;margin-bottom:6px}
.matrix-name p{font-size:14px;color:var(--muted);line-height:1.6}
.matrix-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}

.tag{
  display:inline-flex;align-items:center;padding:5px 11px;border-radius:999px;
  font-size:12.2px;font-weight:600;letter-spacing:.01em;
  background:rgba(148,163,184,.1);border:1px solid var(--border);color:var(--text-soft);
}
.tag-gold{background:rgba(242,177,60,.12);border-color:rgba(242,177,60,.3);color:var(--gold-soft)}
.tag-green{background:rgba(47,211,154,.12);border-color:rgba(47,211,154,.3);color:var(--emerald)}
.tag-red{background:rgba(239,83,80,.12);border-color:rgba(239,83,80,.3);color:#ff8a87}

/* ---------- Trust wall ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.trust-item{
  border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;
  background:linear-gradient(160deg,rgba(242,177,60,.06),rgba(16,26,36,.5));
}
.trust-item h3{font-size:15.8px;margin-bottom:9px;color:var(--gold-soft)}
.trust-item p{font-size:14.2px;color:var(--text-soft);line-height:1.66}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);counter-reset:step}
.step{position:relative;padding-top:34px;border-top:2px solid var(--border)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:-16px;left:0;font-size:13px;font-weight:800;letter-spacing:.08em;
  color:var(--gold-soft);background:var(--bg);padding-right:12px;
}
.step h3{font-size:16.2px;margin-bottom:9px}
.step p{font-size:14.3px;color:var(--text-soft);line-height:1.68}

/* ---------- Cases ---------- */
.case-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:24px;display:flex;flex-direction:column;gap:14px;
}
.case-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.case-top strong{font-size:15.6px}
.case-card p{font-size:14.4px;color:var(--text-soft);line-height:1.68}
.case-stat{display:flex;gap:22px;padding-top:14px;border-top:1px solid var(--border)}
.case-stat div span{display:block;font-size:11.6px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:4px}
.case-stat div strong{font-size:18px;color:var(--emerald)}

/* ---------- Compare ---------- */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.compare-col{border:1px solid var(--border);border-radius:var(--radius-xl);padding:28px 26px;background:var(--surface)}
.compare-col.is-good{border-color:rgba(47,211,154,.34);background:linear-gradient(165deg,rgba(47,211,154,.08),rgba(16,26,36,.6))}
.compare-col h3{font-size:17.4px;margin-bottom:18px}
.compare-list li{position:relative;padding-left:26px;margin-bottom:13px;font-size:14.6px;color:var(--text-soft);line-height:1.65}
.compare-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:2px;border-radius:2px;background:var(--muted);
}
.compare-col.is-good .compare-list li::before{background:var(--emerald);box-shadow:0 0 10px rgba(47,211,154,.6)}

/* ---------- Channel entry ---------- */
.channel-card{
  display:block;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:26px 24px;
  transition:border-color .22s ease,transform .22s ease,background .22s ease;
}
.channel-card:hover{border-color:rgba(242,177,60,.45);transform:translateY(-4px);background:var(--surface-2)}
.channel-card .tag{margin-bottom:16px}
.channel-card h3{font-size:17.4px;margin-bottom:10px}
.channel-card p{font-size:14.4px;color:var(--text-soft);line-height:1.68}
.channel-more{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:13.6px;font-weight:700;color:var(--gold-soft)}

/* ---------- Posts ---------- */
.post-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  transition:border-color .22s ease,transform .22s ease;
}
.post-card:hover{border-color:rgba(242,177,60,.4);transform:translateY(-3px)}
.post-link{display:block;padding:24px 22px}
.post-card h3{font-size:16.2px;margin-bottom:10px;line-height:1.4}
.post-card p{font-size:14.2px;color:var(--text-soft);line-height:1.66}
.post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:16px}
.post-meta time{font-size:12.4px;color:var(--muted)}
.empty-note{
  border:1px dashed var(--border-strong);border-radius:var(--radius-lg);
  padding:30px;text-align:center;color:var(--muted);font-size:14.6px;
}

/* ---------- Reviews ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.review-card{border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px;background:var(--bg-2)}
.review-card blockquote{margin:0 0 18px;font-size:14.8px;color:var(--text-soft);line-height:1.72}
.review-card figcaption{display:flex;flex-direction:column;gap:3px}
.review-card figcaption strong{font-size:14.6px}
.review-card figcaption span{font-size:12.6px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px}
.faq details{
  border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);
  padding:0;transition:border-color .2s ease;
}
.faq details[open]{border-color:rgba(242,177,60,.4)}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:15.6px;font-weight:700;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;font-weight:500;color:var(--gold-soft);line-height:1;transition:transform .2s ease}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 24px 22px;font-size:14.6px;color:var(--text-soft);line-height:1.72}

/* ---------- Form ---------- */
.form-wrap{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:clamp(26px,4vw,54px);align-items:start;
}
.form-side h2{font-size:clamp(22px,3vw,32px);margin-bottom:14px}
.form-side p{color:var(--text-soft);font-size:15.4px;line-height:1.72;margin-bottom:22px}
.form-side ul li{position:relative;padding-left:24px;font-size:14.4px;color:var(--text-soft);margin-bottom:11px;line-height:1.62}
.form-side ul li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;background:var(--gold);opacity:.8}

.lead-form{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);padding:clamp(22px,3vw,32px);box-shadow:var(--shadow-soft)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.2px;font-weight:600;color:var(--text-soft);margin-bottom:8px;letter-spacing:.01em}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:var(--radius-sm);
  background:rgba(8,13,18,.7);border:1px solid var(--border-strong);
  font-size:14.8px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{resize:vertical;min-height:110px}
.field input::placeholder,.field textarea::placeholder{color:#61707f}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(242,177,60,.14);
}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.form-note{font-size:12.6px;color:var(--muted);margin-top:14px;line-height:1.6}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(16,26,36,.86);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(242,177,60,.5);
  box-shadow:0 0 22px rgba(242,177,60,.3);
  opacity:.85;transition:transform .22s ease,box-shadow .22s ease,opacity .22s ease;
}
.fab:hover{opacity:1;transform:scale(1.09);box-shadow:0 0 34px rgba(242,177,60,.5)}
.fab:active{transform:scale(.93)}
.fab svg{width:24px;height:24px;stroke:var(--gold-soft);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.fab-dot{
  position:absolute;top:5px;right:5px;width:11px;height:11px;border-radius:50%;
  background:#ef4444;box-shadow:0 0 0 2px rgba(8,13,18,.92);
}

/* ---------- Footer ---------- */
.site-footer{background:#060a0e;border-top:1px solid var(--border);padding:clamp(44px,6vw,72px) 0 0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4vw,52px)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:11px;font-size:13px}
.footer-col h4{font-size:13.4px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14.2px;color:var(--text-soft);transition:color .2s ease}
.footer-col ul li a:hover{color:var(--gold-soft)}
.footer-about{font-size:14.2px;color:var(--muted);line-height:1.72;max-width:42ch}
.footer-bottom{
  margin-top:clamp(34px,5vw,54px);padding:22px 0;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:12.8px;color:var(--muted)}
.footer-note{font-size:12.4px;color:#5f6d7c}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric{border-left:1px solid var(--border);padding:24px 20px}
  .metric:nth-child(odd){border-left:0;padding-left:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--border)}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .trust-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 20px}
  .overview-wrap{grid-template-columns:1fr}
  .overview-media img{aspect-ratio:16/10}
}

@media (max-width:980px){
  .main-nav{
    position:fixed;left:0;right:0;top:70px;
    flex-direction:column;align-items:stretch;gap:3px;margin-left:0;
    padding:16px clamp(16px,4vw,32px) 24px;
    background:rgba(9,14,20,.985);
    border-bottom:1px solid var(--border);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:transform .22s ease,opacity .22s ease;
    box-shadow:0 24px 40px -24px rgba(0,0,0,.9);
  }
  .main-nav.is-open{transform:none;opacity:1;pointer-events:auto}
  .nav-link{padding:13px 14px;font-size:15px}
  .nav-toggle{display:flex}
  .header-actions{margin-left:auto}
  .header-actions .btn{display:none}
}

@media (max-width:860px){
  .grid-3,.review-grid,.compare{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr}
  .form-wrap{grid-template-columns:1fr}
  .matrix-row{grid-template-columns:1fr;gap:14px}
  .matrix-tags{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:680px){
  .brand-text small{display:none}
  .grid-2,.grid-4{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .metric-grid{grid-template-columns:1fr}
  .metric{border-left:0;padding:20px 0}
  .metric:nth-child(2){border-bottom:1px solid var(--border)}
  .metric:nth-child(3){border-bottom:1px solid var(--border)}
  .form-row{grid-template-columns:1fr}
  .hero-chips li{font-size:12.8px;padding:8px 13px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --bg:#080d12;
  --bg-2:#0b131a;
  --surface:#101a24;
  --surface-2:#16222e;
  --border:rgba(148,163,184,.15);
  --border-strong:rgba(148,163,184,.3);
  --text:#e9eef4;
  --text-soft:#b5c1cf;
  --muted:#8494a6;
  --gold:#f2b13c;
  --gold-soft:#fcd34d;
  --emerald:#2fd39a;
  --red:#ef5350;
  --radius-xl:24px;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 24px 55px -30px rgba(0,0,0,.95);
  --shadow-soft:0 12px 32px -20px rgba(0,0,0,.8);
  --maxw:1180px;
  --gap:clamp(16px,2.3vw,26px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800;letter-spacing:-.015em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,32px)}
::selection{background:rgba(242,177,60,.32);color:#fff}
a:focus-visible,button:focus-visible{outline:2px solid var(--gold-soft);outline-offset:3px;border-radius:8px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:12px;font-size:14.5px;font-weight:700;
  letter-spacing:.01em;border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--gold-soft),var(--gold));color:#1b1203;box-shadow:0 14px 32px -16px rgba(242,177,60,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 40px -16px rgba(242,177,60,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--border-strong);color:var(--text);background:rgba(148,163,184,.06)}
.btn-ghost:hover{background:rgba(148,163,184,.14);border-color:rgba(242,177,60,.5);color:var(--gold-soft)}
.btn-sm{padding:10px 17px;font-size:13.5px;border-radius:10px}
.btn-block{width:100%}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(8,13,18,.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:16px;min-height:70px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  font-weight:800;font-size:14px;letter-spacing:.5px;color:#0a0f14;
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  box-shadow:0 10px 24px -12px rgba(242,177,60,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.22}
.brand-text strong{font-size:14.8px;letter-spacing:-.01em}
.brand-text small{font-size:11.5px;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto}
.nav-link{
  padding:9px 13px;border-radius:10px;font-size:14px;font-weight:600;
  color:var(--text-soft);transition:.2s;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(148,163,184,.1)}
.nav-link.is-active{color:var(--gold-soft);background:rgba(242,177,60,.11)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:11px;border:1px solid var(--border);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-soft);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Article hero ---------- */
.article-hero{position:relative;overflow:hidden;padding:clamp(38px,5vw,64px) 0 clamp(40px,5vw,58px);border-bottom:1px solid var(--border)}
.article-hero-bg{position:absolute;inset:0;background:url('/assets/images/6a36341464e63dbb.jpg') center/cover no-repeat;opacity:.22}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(680px 420px at 8% 4%,rgba(242,177,60,.2),transparent 62%),
    radial-gradient(520px 380px at 92% 88%,rgba(47,211,154,.14),transparent 60%),
    linear-gradient(180deg,rgba(8,13,18,.72) 0%,rgba(8,13,18,.94) 60%,var(--bg) 100%);
}
.article-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:clamp(26px,4vw,52px);align-items:start}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--text-soft);transition:.2s}
.crumbs a:hover{color:var(--gold-soft)}
.crumbs span.sep{color:rgba(148,163,184,.45)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.4px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--gold-soft);padding:7px 14px;border-radius:999px;
  border:1px solid rgba(242,177,60,.28);background:rgba(242,177,60,.08);
  margin-bottom:20px;
}
.article-hero h1{font-size:clamp(25px,3.7vw,42px);margin-bottom:18px;max-width:26ch}
.article-lead{font-size:clamp(15.4px,1.4vw,17.4px);color:var(--text-soft);line-height:1.75;max-width:70ch}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.meta-pill{
  display:inline-flex;align-items:center;gap:8px;font-size:13.2px;font-weight:600;
  color:var(--text-soft);padding:9px 15px;border-radius:999px;
  border:1px solid var(--border);background:rgba(148,163,184,.06);
}
.meta-pill b{color:var(--gold-soft);font-weight:700}
.hero-panel{
  background:linear-gradient(160deg,rgba(22,34,46,.96),rgba(16,26,36,.92));
  border:1px solid var(--border);border-radius:var(--radius-xl);
  padding:clamp(20px,2.4vw,28px);box-shadow:var(--shadow);
}
.hero-panel h2{font-size:15px;letter-spacing:.02em;color:var(--gold-soft);text-transform:uppercase;font-size:13px;margin-bottom:18px}
.panel-row{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px dashed rgba(148,163,184,.18)}
.panel-row:last-of-type{border-bottom:0;padding-bottom:4px}
.panel-row dt{font-size:13.2px;color:var(--muted);font-weight:600}
.panel-row dd{margin:0;font-size:13.8px;font-weight:700;text-align:right;color:var(--text)}
.hero-cover{margin-top:18px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border)}

/* ---------- Section basics ---------- */
.section{padding:clamp(50px,6vw,84px) 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:760px;margin-bottom:clamp(26px,3.4vw,42px)}
.section-head h2{font-size:clamp(21px,2.8vw,31px);margin-bottom:12px}
.section-lead{color:var(--text-soft);font-size:16.2px;line-height:1.72}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}

/* ---------- Cards ---------- */
.card{
  background:linear-gradient(160deg,rgba(22,34,46,.9),rgba(16,26,36,.9));
  border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:clamp(18px,2.2vw,26px);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(242,177,60,.34);box-shadow:var(--shadow-soft)}
.card h3{font-size:17px;margin-bottom:10px}
.card p{color:var(--text-soft);font-size:14.8px;line-height:1.7}
.card-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;margin-bottom:14px;
  font-size:13px;font-weight:800;color:#1b1203;
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
}
.tag{
  display:inline-block;font-size:11.6px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--gold-soft);
  padding:5px 11px;border-radius:999px;border:1px solid rgba(242,177,60,.3);
  background:rgba(242,177,60,.09);margin-bottom:12px;
}

/* ---------- Article body ---------- */
.article-shell{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--gap)}
.article-body{
  background:linear-gradient(180deg,rgba(16,26,36,.72),rgba(11,19,26,.6));
  border:1px solid var(--border);border-radius:var(--radius-xl);
  padding:clamp(22px,3vw,44px);
}
.article-body h2{font-size:clamp(19px,2.3vw,26px);margin:34px 0 14px;color:var(--text)}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:clamp(16.6px,1.8vw,20px);margin:26px 0 12px;color:var(--text)}
.article-body h4{font-size:16px;margin:22px 0 10px;color:var(--gold-soft)}
.article-body p{color:var(--text-soft);font-size:16px;line-height:1.78;margin:0 0 16px}
.article-body ul,.article-body ol{color:var(--text-soft);font-size:16px;line-height:1.78;margin:0 0 18px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:9px}
.article-body li::marker{color:var(--gold)}
.article-body strong,.article-body b{color:var(--text);font-weight:700}
.article-body a{color:var(--gold-soft);border-bottom:1px solid rgba(242,177,60,.4);transition:.2s}
.article-body a:hover{color:#fff;border-color:#fff}
.article-body blockquote{
  margin:22px 0;padding:18px 22px;border-left:3px solid var(--gold);
  background:rgba(242,177,60,.07);border-radius:0 var(--radius) var(--radius) 0;
  color:var(--text-soft);font-size:15.6px;
}
.article-body img{border-radius:var(--radius-lg);margin:22px 0;border:1px solid var(--border)}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.6px}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--border);text-align:left;color:var(--text-soft)}
.article-body th{background:rgba(242,177,60,.1);color:var(--gold-soft);font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--border);margin:30px 0}
.article-body code{background:rgba(148,163,184,.14);padding:2px 7px;border-radius:6px;font-size:14px;color:var(--gold-soft)}
.article-empty{padding:clamp(24px,3vw,40px);border:1px dashed var(--border-strong);border-radius:var(--radius-lg);background:rgba(148,163,184,.05)}
.article-empty h2{font-size:20px;margin-bottom:10px}
.article-empty p{color:var(--text-soft);margin-bottom:16px}

/* ---------- Checklist ---------- */
.check-list{display:flex;flex-direction:column;gap:2px}
.check-item{display:grid;grid-template-columns:38px minmax(0,1fr);gap:16px;padding:20px 0;border-bottom:1px solid var(--border)}
.check-item:last-child{border-bottom:0}
.check-dot{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  font-size:13px;font-weight:800;color:var(--emerald);
  border:1px solid rgba(47,211,154,.3);background:rgba(47,211,154,.09);
}
.check-item h3{font-size:16.6px;margin-bottom:8px}
.check-item p{color:var(--text-soft);font-size:14.9px;line-height:1.72;margin:0}

/* ---------- Steps timeline ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);counter-reset:step}
.step{
  position:relative;padding-top:26px;border-top:2px solid rgba(242,177,60,.28);
}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:-15px;left:0;
  font-size:12.6px;font-weight:800;letter-spacing:.06em;
  padding:5px 11px;border-radius:999px;color:#1b1203;
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
}
.step h3{font-size:16.4px;margin-bottom:9px}
.step p{color:var(--text-soft);font-size:14.6px;line-height:1.7;margin:0}

/* ---------- Stats strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--border);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;
}
.stat{background:var(--surface);padding:clamp(18px,2.2vw,26px)}
.stat strong{display:block;font-size:clamp(21px,2.6vw,29px);color:var(--gold-soft);letter-spacing:-.02em;margin-bottom:6px}
.stat span{font-size:13.4px;color:var(--muted);font-weight:600;line-height:1.5;display:block}

/* ---------- Related posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.post-card{
  display:flex;flex-direction:column;gap:10px;
  background:linear-gradient(160deg,rgba(22,34,46,.9),rgba(16,26,36,.9));
  border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:clamp(18px,2.2vw,24px);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-3px);border-color:rgba(242,177,60,.34);box-shadow:var(--shadow-soft)}
.post-card h3{font-size:16.4px;line-height:1.45}
.post-card p{color:var(--text-soft);font-size:14.4px;line-height:1.7;margin:0}
.post-card .post-meta{font-size:12.8px;color:var(--muted);font-weight:600}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);background:rgba(16,26,36,.72);overflow:hidden;transition:border-color .2s}
.faq-item[open]{border-color:rgba(242,177,60,.34)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 20px;font-weight:700;font-size:15.6px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--gold-soft);font-size:20px;font-weight:700;line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item p{padding:0 20px 20px;color:var(--text-soft);font-size:15px;line-height:1.75;margin:0}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  border:1px solid rgba(242,177,60,.3);
  background:linear-gradient(135deg,rgba(242,177,60,.14),rgba(16,26,36,.92) 55%);
  padding:clamp(26px,3.6vw,48px);
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:clamp(20px,3vw,40px);align-items:center;
}
.cta-band h2{font-size:clamp(20px,2.6vw,29px);margin-bottom:12px}
.cta-band p{color:var(--text-soft);font-size:15.8px;line-height:1.72;margin-bottom:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--border);padding:clamp(40px,5vw,66px) 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:clamp(24px,3.4vw,48px);padding-bottom:34px;border-bottom:1px solid var(--border)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand strong{font-size:15px}
.footer-about{color:var(--text-soft);font-size:14.4px;line-height:1.75;max-width:56ch}
.footer-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.11em;color:var(--gold-soft);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:14.4px;color:var(--text-soft);transition:.2s}
.footer-col li a:hover{color:var(--gold-soft)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;padding-top:22px}
.footer-bottom p{margin:0;font-size:13.2px;color:var(--muted)}
.footer-note{max-width:62ch}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle at 32% 26%,#2c1e07,#0b0f14 72%);
  border:2px solid var(--gold);
  box-shadow:0 6px 25px rgba(245,158,11,.35);
  opacity:.86;transition:transform .2s ease,opacity .2s ease,box-shadow .2s ease;
}
.fab:hover{opacity:1;transform:scale(1.08);box-shadow:0 10px 32px rgba(245,158,11,.5)}
.fab:active{transform:scale(.95) translateY(2px)}
.fab svg{width:24px;height:24px;fill:none;stroke:var(--gold-soft);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.fab-badge{position:absolute;top:2px;right:2px;width:12px;height:12px;border-radius:50%;background:#dc2626;box-shadow:0 0 0 2px #fff}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .article-hero-inner{grid-template-columns:minmax(0,1fr)}
  .hero-panel{order:2}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1024px){
  .main-nav{
    position:fixed;top:70px;left:0;right:0;z-index:69;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;
    background:rgba(8,13,18,.98);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border);
    padding:14px clamp(16px,4vw,32px) 22px;
    max-height:calc(100vh - 70px);overflow-y:auto;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.22s ease;
  }
  .main-nav.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-link{padding:13px 14px;font-size:15px}
  .nav-toggle{display:flex}
  .header-actions{margin-left:auto}
  .cta-band{grid-template-columns:minmax(0,1fr)}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:760px){
  .grid-3,.grid-4,.post-grid{grid-template-columns:minmax(0,1fr)}
  .grid-2{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .brand-text small{display:none}
  .article-body{padding:20px 18px}
  .check-item{grid-template-columns:32px minmax(0,1fr);gap:12px}
}
@media (max-width:520px){
  .steps,.stat-strip{grid-template-columns:minmax(0,1fr)}
  .header-actions .btn{display:none}
  .article-hero h1{font-size:24px}
  .meta-pill{font-size:12.4px;padding:8px 12px}
  .fab{left:12px;bottom:84px;width:52px;height:52px}
}

/* roulang page: category1 */
:root{
  --bg:#080d12;
  --bg-2:#0b131a;
  --surface:#101a24;
  --surface-2:#16222e;
  --border:rgba(148,163,184,.15);
  --border-strong:rgba(148,163,184,.3);
  --text:#e9eef4;
  --text-soft:#b5c1cf;
  --muted:#8494a6;
  --gold:#f2b13c;
  --gold-soft:#fcd34d;
  --emerald:#2fd39a;
  --red:#ef5350;
  --radius-xl:24px;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 24px 55px -30px rgba(0,0,0,.95);
  --shadow-soft:0 12px 32px -20px rgba(0,0,0,.8);
  --maxw:1180px;
  --gap:clamp(16px,2.3vw,26px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:96px}
body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0 0 12px;line-height:1.24;letter-spacing:-.015em;font-weight:800}
h1{font-size:clamp(25px,3.9vw,42px)}
h2{font-size:clamp(21px,2.9vw,32px)}
h3{font-size:clamp(17px,1.6vw,19.5px)}
h4{font-size:15.5px}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--gold-soft);outline-offset:3px;border-radius:6px}
::selection{background:rgba(242,177,60,.32)}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,32px)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:12px;font-size:14.5px;font-weight:700;
  letter-spacing:.01em;border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--gold-soft),var(--gold));color:#1b1203;box-shadow:0 14px 32px -16px rgba(242,177,60,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 40px -16px rgba(242,177,60,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--border-strong);color:var(--text);background:rgba(148,163,184,.06)}
.btn-ghost:hover{background:rgba(148,163,184,.14);border-color:rgba(242,177,60,.5);color:var(--gold-soft)}
.btn-sm{padding:10px 17px;font-size:13.5px;border-radius:10px}
.btn-block{width:100%}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(8,13,18,.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:16px;min-height:70px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  font-weight:800;font-size:14px;letter-spacing:.5px;color:#0a0f14;
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  box-shadow:0 10px 24px -12px rgba(242,177,60,.95);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.22}
.brand-text strong{font-size:14.8px;letter-spacing:-.01em}
.brand-text small{font-size:11.5px;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto}
.nav-link{
  padding:9px 13px;border-radius:10px;font-size:14px;font-weight:600;
  color:var(--text-soft);transition:.2s;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(148,163,184,.1)}
.nav-link.is-active{color:var(--gold-soft);background:rgba(242,177,60,.11)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:11px;border:1px solid var(--border);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-soft);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(44px,5.6vw,76px) 0 clamp(46px,6vw,74px);border-bottom:1px solid var(--border)}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/6a36341464e63dbb.jpg') center/cover no-repeat;
  opacity:.24;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(720px 440px at 12% 4%,rgba(242,177,60,.2),transparent 62%),
    radial-gradient(560px 420px at 92% 86%,rgba(47,211,154,.15),transparent 60%),
    linear-gradient(180deg,rgba(8,13,18,.72) 0%,rgba(8,13,18,.94) 58%,var(--bg) 100%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,.88fr);gap:clamp(26px,3.4vw,46px);align-items:start}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.4px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--gold-soft);padding:7px 14px;border-radius:999px;
  border:1px solid rgba(242,177,60,.28);background:rgba(242,177,60,.08);
  margin-bottom:20px;
}
.hero h1{max-width:20ch;margin-bottom:20px}
.h1-accent{color:var(--gold-soft)}
.hero-lead{font-size:clamp(15.5px,1.4vw,17.5px);color:var(--text-soft);line-height:1.72;max-width:62ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;padding-top:24px;border-top:1px solid var(--border)}
.hero-chips li{
  font-size:13.4px;color:var(--text-soft);padding:9px 15px;border-radius:999px;
  border:1px solid var(--border);background:rgba(148,163,184,.06);
}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:12.8px;color:var(--muted);margin-bottom:18px}
.crumbs a:hover{color:var(--gold-soft)}
.crumbs span{color:var(--gold-soft)}

/* Live preview panel */
.hero-live{
  border:1px solid var(--border-strong);border-radius:var(--radius-xl);overflow:hidden;
  background:linear-gradient(180deg,var(--surface),var(--bg-2));
  box-shadow:var(--shadow);
}
.hero-live img{width:100%;aspect-ratio:16/10;object-fit:cover}
.live-body{padding:20px 20px 22px}
.live-tag{
  display:inline-flex;align-items:center;gap:7px;font-size:11.6px;font-weight:700;
  letter-spacing:.11em;text-transform:uppercase;color:#1b1203;
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  padding:6px 12px;border-radius:999px;margin-bottom:14px;
}
.live-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:#7f1d1d;box-shadow:0 0 0 3px rgba(127,29,29,.25)}
.live-body h2{font-size:18.5px;margin-bottom:8px}
.live-body p{font-size:13.6px;color:var(--muted);line-height:1.6}
.countdown{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:18px 0 16px}
.cd-cell{
  text-align:center;padding:12px 6px;border-radius:var(--radius-sm);
  border:1px solid var(--border);background:rgba(8,13,18,.6);
}
.cd-cell strong{display:block;font-size:clamp(19px,2.4vw,25px);color:var(--gold-soft);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.cd-cell span{font-size:11.4px;color:var(--muted);text-transform:uppercase;letter-spacing:.1em}
.live-note{font-size:12.4px;color:var(--muted);margin-top:12px;text-align:center}

/* ---------- Sections ---------- */
.section{padding:clamp(50px,6.4vw,86px) 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:760px;margin-bottom:clamp(28px,3.6vw,44px)}
.section-head h2{margin-bottom:13px}
.section-lead{color:var(--text-soft);font-size:16.2px;line-height:1.72}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}
.split{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:clamp(24px,3.4vw,50px);align-items:center}
.split-rev{grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr)}
.figure{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-soft)}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.figure figcaption{padding:12px 16px;font-size:12.8px;color:var(--muted);background:var(--surface)}

/* Overview list */
.ov-list{display:flex;flex-direction:column}
.ov-item{padding:20px 0;border-bottom:1px solid var(--border)}
.ov-item:first-child{padding-top:0}
.ov-item:last-child{border-bottom:0;padding-bottom:0}
.ov-item h3{margin-bottom:8px}
.ov-item p{color:var(--text-soft);font-size:15.4px}

/* Feature strip */
.feature-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.feature{padding:28px clamp(16px,2vw,26px);border-right:1px solid var(--border)}
.feature:last-child{border-right:0}
.feature .num{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.16em;
  color:var(--gold-soft);margin-bottom:14px;
}
.feature h3{font-size:16.6px;margin-bottom:10px}
.feature p{font-size:14.4px;color:var(--text-soft);line-height:1.68}

/* Compare table */
.table-wrap{border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;background:var(--surface)}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.cmp-table{min-width:660px;font-size:14.6px}
.cmp-table caption{caption-side:top;text-align:left;padding:16px 20px;font-size:13px;color:var(--muted);border-bottom:1px solid var(--border);background:var(--bg-2)}
.cmp-table th,.cmp-table td{padding:15px 20px;text-align:left;vertical-align:top;border-bottom:1px solid var(--border)}
.cmp-table thead th{
  font-size:12.6px;text-transform:uppercase;letter-spacing:.09em;color:var(--gold-soft);
  background:rgba(242,177,60,.07);font-weight:800;
}
.cmp-table tbody th{font-weight:700;color:var(--text);background:rgba(148,163,184,.04);width:23%}
.cmp-table tbody td{color:var(--text-soft)}
.cmp-table tbody tr:last-child th,.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table tbody tr:hover td{background:rgba(148,163,184,.05)}
.risk-low{color:var(--emerald);font-weight:700}
.risk-mid{color:var(--gold-soft);font-weight:700}
.risk-high{color:var(--red);font-weight:700}

/* Signals + steps */
.signal-block{border-left:2px solid rgba(242,177,60,.4);padding-left:20px;margin-bottom:26px}
.signal-block:last-child{margin-bottom:0}
.signal-block h3{margin-bottom:8px}
.signal-block p{color:var(--text-soft);font-size:15.2px}
.signal-tag{
  display:inline-block;font-size:11.6px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--emerald);border:1px solid rgba(47,211,154,.3);background:rgba(47,211,154,.08);
  padding:4px 10px;border-radius:999px;margin-bottom:12px;
}
.steps{display:flex;flex-direction:column;gap:14px}
.step{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;align-items:start;
  padding:18px 20px;border:1px solid var(--border);border-radius:var(--radius);
  background:linear-gradient(180deg,var(--surface),rgba(16,26,36,.55));
  transition:border-color .22s ease,transform .22s ease;
}
.step:hover{border-color:rgba(242,177,60,.42);transform:translateX(3px)}
.step-idx{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  font-size:13.4px;font-weight:800;color:#1b1203;
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
}
.step h4{margin-bottom:6px;font-size:15.4px}
.step p{font-size:14.2px;color:var(--text-soft);line-height:1.66}

/* Stats + reference table */
.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);margin-bottom:clamp(24px,3vw,36px)}
.stat{
  padding:22px 20px;border-radius:var(--radius-lg);border:1px solid var(--border);
  background:linear-gradient(180deg,var(--surface),var(--bg-2));
}
.stat strong{display:block;font-size:clamp(24px,3vw,32px);color:var(--gold-soft);letter-spacing:-.02em;line-height:1.1}
.stat span{display:block;margin-top:8px;font-size:13.4px;color:var(--text-soft)}
.stat small{display:block;margin-top:10px;font-size:12px;color:var(--muted)}
.data-note{font-size:13.2px;color:var(--muted);margin-top:14px;line-height:1.66}

/* Scenarios */
.scenarios{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.scenario{
  padding:26px 24px;border-radius:var(--radius-lg);border:1px solid var(--border);
  background:var(--bg-2);display:flex;flex-direction:column;gap:10px;
  transition:transform .22s ease,border-color .22s ease;
}
.scenario:hover{transform:translateY(-4px);border-color:rgba(242,177,60,.4)}
.scenario .tag{
  align-self:flex-start;font-size:11.6px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--gold-soft);background:rgba(242,177,60,.1);border:1px solid rgba(242,177,60,.26);
  padding:5px 11px;border-radius:999px;
}
.scenario h3{font-size:17px;margin:4px 0 0}
.scenario p{font-size:14.4px;color:var(--text-soft)}
.scenario ul{display:flex;flex-direction:column;gap:8px;margin-top:6px}
.scenario li{font-size:14px;color:var(--text-soft);padding-left:18px;position:relative}
.scenario li::before{content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:50%;background:var(--gold)}

/* Mistakes */
.mistakes{border-top:1px solid var(--border)}
.mistake{display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;padding:20px 0;border-bottom:1px solid var(--border);align-items:start}
.mistake:last-child{border-bottom:0}
.mistake .mark{
  width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  color:var(--red);background:rgba(239,83,80,.12);border:1px solid rgba(239,83,80,.35);
  font-size:13px;font-weight:800;
}
.mistake h4{margin-bottom:6px}
.mistake p{font-size:14.6px;color:var(--text-soft)}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);background:rgba(148,163,184,.04);overflow:hidden;transition:border-color .22s ease}
.faq-item:hover{border-color:rgba(242,177,60,.35)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:17px 20px;font-weight:700;font-size:15.6px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--gold-soft);font-size:20px;font-weight:700;line-height:1;transition:transform .25s ease;flex-shrink:0}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--gold-soft)}
.faq-item .faq-body{padding:0 20px 20px;font-size:15.2px;color:var(--text-soft);line-height:1.72}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  border:1px solid rgba(242,177,60,.32);
  background:
    radial-gradient(620px 320px at 14% 0%,rgba(242,177,60,.18),transparent 62%),
    linear-gradient(135deg,rgba(16,26,36,.96),rgba(11,19,26,.9));
  padding:clamp(28px,4vw,46px);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/bdeb214d103d908c.jpg') center/cover no-repeat;
  opacity:.1;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(22px,3vw,40px);align-items:center}
.cta-inner h2{margin-bottom:12px}
.cta-inner p{color:var(--text-soft);font-size:15.6px}
.cta-form{display:flex;gap:10px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 220px;min-width:0;padding:13px 16px;border-radius:12px;
  border:1px solid var(--border-strong);background:rgba(8,13,18,.72);color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--muted)}
.cta-form input:focus{border-color:rgba(242,177,60,.6);box-shadow:0 0 0 3px rgba(242,177,60,.14);outline:none}
.form-note{font-size:13px;color:var(--muted);margin-top:12px}
.form-note.is-ok{color:var(--emerald)}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--border);padding:clamp(40px,5vw,64px) 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(2,minmax(0,.85fr));gap:clamp(24px,3.4vw,48px)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand strong{font-size:15.4px}
.footer-about{font-size:14px;color:var(--text-soft);line-height:1.7;max-width:52ch}
.footer-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.11em;color:var(--gold-soft);margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14.2px;color:var(--text-soft);transition:color .2s ease,padding-left .2s ease}
.footer-col ul a:hover{color:var(--gold-soft);padding-left:4px}
.footer-bottom{
  margin-top:clamp(30px,4vw,48px);padding-top:22px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13px;color:var(--muted);margin:0}
.footer-note{max-width:620px;line-height:1.6}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:60;
  width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;
  background:radial-gradient(circle at 32% 28%,#fde68a,#f2b13c 46%,#b45309 100%);
  border:2px solid #fcd34d;color:#2a1a02;
  font-size:19px;font-weight:900;letter-spacing:-.02em;
  box-shadow:0 8px 26px -6px rgba(242,177,60,.72);
  opacity:.85;
  animation:fabFloat 3.4s ease-in-out infinite;
  transition:opacity .25s ease,box-shadow .25s ease,transform .3s ease;
}
.fab::after{
  content:"";position:absolute;top:1px;right:1px;width:13px;height:13px;border-radius:50%;
  background:#dc2626;box-shadow:0 0 0 2px rgba(255,255,255,.85);
}
.fab-inner{display:grid;place-items:center;transition:transform .45s ease}
.fab:hover{opacity:1;animation:none;transform:scale(1.1);box-shadow:0 12px 34px -6px rgba(242,177,60,.95)}
.fab:hover .fab-inner{transform:rotate(360deg)}
.fab:active{transform:scale(.95) translateY(3px)}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero h1{max-width:26ch}
  .split,.split-rev{grid-template-columns:1fr;gap:26px}
  .feature-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature:nth-child(2n){border-right:0}
  .feature:nth-child(-n+2){border-bottom:1px solid var(--border)}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scenarios{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:minmax(0,1.3fr) repeat(2,minmax(0,.9fr))}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:14px clamp(16px,4vw,32px) 20px;
    background:rgba(8,13,18,.98);
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;font-size:15px}
  .nav-toggle{display:flex}
  .header-actions{margin-left:auto}
}
@media (max-width:768px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .hero-actions .btn{flex:1 1 auto}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scenarios{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .header-actions .btn{display:none}
  .cmp-table{min-width:600px}
}
@media (max-width:520px){
  body{font-size:15.4px}
  .brand-text small{display:none}
  .feature-strip{grid-template-columns:1fr}
  .feature{border-right:0;border-bottom:1px solid var(--border);padding:22px 4px}
  .feature:last-child{border-bottom:0}
  .stat-row{grid-template-columns:1fr}
  .countdown{gap:6px}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .fab{left:12px;bottom:88px;width:52px;height:52px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg:#080d12;
  --bg-2:#0b131a;
  --surface:#101a24;
  --surface-2:#16222e;
  --border:rgba(148,163,184,.15);
  --border-strong:rgba(148,163,184,.3);
  --text:#e9eef4;
  --text-soft:#b5c1cf;
  --muted:#8494a6;
  --gold:#f2b13c;
  --gold-soft:#fcd34d;
  --emerald:#2fd39a;
  --red:#ef5350;
  --radius-xl:24px;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 24px 55px -30px rgba(0,0,0,.95);
  --shadow-soft:0 12px 32px -20px rgba(0,0,0,.8);
  --maxw:1180px;
  --gap:clamp(16px,2.3vw,26px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Inter","Be Vietnam Pro","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.22;letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--gold-soft);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,32px)}
/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:12px;font-size:14.5px;font-weight:700;
  letter-spacing:.01em;border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--gold-soft),var(--gold));color:#1b1203;box-shadow:0 14px 32px -16px rgba(242,177,60,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 40px -16px rgba(242,177,60,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--border-strong);color:var(--text);background:rgba(148,163,184,.06)}
.btn-ghost:hover{background:rgba(148,163,184,.14);border-color:rgba(242,177,60,.5);color:var(--gold-soft)}
.btn-sm{padding:10px 17px;font-size:13.5px;border-radius:10px}
/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(8,13,18,.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{position:relative;display:flex;align-items:center;gap:16px;min-height:70px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  font-weight:800;font-size:14px;letter-spacing:.5px;color:#0a0f14;
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  box-shadow:0 10px 24px -12px rgba(242,177,60,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.22}
.brand-text strong{font-size:14.8px;letter-spacing:-.01em}
.brand-text small{font-size:11.5px;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto}
.nav-link{
  padding:9px 13px;border-radius:10px;font-size:14px;font-weight:600;
  color:var(--text-soft);transition:.2s;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(148,163,184,.1)}
.nav-link.is-active{color:var(--gold-soft);background:rgba(242,177,60,.11)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:11px;border:1px solid var(--border);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-soft);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(40px,6vw,74px) 0 clamp(44px,6vw,66px);border-bottom:1px solid var(--border)}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/6a36341464e63dbb.jpg') center/cover no-repeat;
  opacity:.24;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(700px 440px at 8% 4%,rgba(242,177,60,.2),transparent 62%),
    radial-gradient(560px 420px at 92% 88%,rgba(47,211,154,.14),transparent 60%),
    linear-gradient(180deg,rgba(8,13,18,.72) 0%,rgba(8,13,18,.94) 58%,var(--bg) 100%);
}
.hero-inner{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--text-soft);border-bottom:1px dashed rgba(148,163,184,.35);padding-bottom:1px}
.crumb a:hover{color:var(--gold-soft);border-color:rgba(242,177,60,.6)}
.crumb span{opacity:.6}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.14fr) minmax(0,.86fr);gap:clamp(26px,4vw,50px);align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.4px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--gold-soft);padding:7px 14px;border-radius:999px;
  border:1px solid rgba(242,177,60,.28);background:rgba(242,177,60,.08);
  margin-bottom:20px;
}
.hero h1{font-size:clamp(27px,4vw,43px);margin-bottom:18px;max-width:24ch}
.hero-lead{font-size:clamp(15.4px,1.45vw,17.6px);color:var(--text-soft);line-height:1.72;max-width:62ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
/* ---------- Compare panel (hero right) ---------- */
.compare{display:flex;flex-direction:column;gap:16px}
.compare-item{
  position:relative;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:20px 22px;background:rgba(16,26,36,.78);transition:.22s;
}
.compare-item h3{font-size:16.5px;margin-bottom:12px}
.compare-item ul{display:flex;flex-direction:column;gap:8px}
.compare-item li{position:relative;padding-left:20px;font-size:14.6px;color:var(--text-soft)}
.compare-item li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:2px;border-radius:2px;background:rgba(148,163,184,.5)}
.compare-item.is-pick{
  border-color:rgba(242,177,60,.5);
  background:linear-gradient(155deg,rgba(242,177,60,.15),rgba(16,26,36,.92));
  box-shadow:var(--shadow-soft);
}
.compare-item.is-pick li::before{background:var(--gold)}
.compare-item.is-pick li{color:var(--text)}
.compare-tag{
  position:absolute;top:-11px;left:20px;font-size:10.6px;font-weight:800;letter-spacing:.14em;
  text-transform:uppercase;color:#1b1203;background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  padding:4px 11px;border-radius:999px;
}
/* ---------- Stat strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--border);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;margin-top:38px;
}
.stat{background:var(--surface);padding:18px 20px}
.stat b{display:block;font-size:clamp(20px,2.3vw,27px);color:var(--gold-soft);letter-spacing:-.02em;margin-bottom:4px}
.stat span{font-size:13.2px;color:var(--muted);line-height:1.45;display:block}
/* ---------- Sections ---------- */
.section{padding:clamp(50px,6.4vw,86px) 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:720px;margin-bottom:clamp(26px,3.6vw,44px)}
.section-head h2{font-size:clamp(22px,2.9vw,32px);margin-bottom:12px}
.section-lead{color:var(--text-soft);font-size:16.2px;line-height:1.72}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(24px,4vw,54px);align-items:start}
.figure{border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;background:var(--surface)}
.figure img{width:100%;aspect-ratio:16/11;object-fit:cover}
.figure figcaption{padding:14px 18px;font-size:13.4px;color:var(--muted);border-top:1px solid var(--border);line-height:1.55}
.ov-list{display:flex;flex-direction:column}
.ov-item{padding:20px 0;border-bottom:1px solid var(--border)}
.ov-item:first-child{padding-top:0}
.ov-item:last-child{border-bottom:0;padding-bottom:0}
.ov-item h3{font-size:17.6px;margin-bottom:9px}
.ov-item p{color:var(--text-soft);font-size:15.6px}
.ov-item .tagline{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--emerald);margin-bottom:8px}
/* ---------- Layers ---------- */
.layers{display:flex;flex-direction:column}
.layer{display:grid;grid-template-columns:96px minmax(0,1fr);gap:22px;padding:26px 0;border-top:1px solid var(--border)}
.layer:last-child{border-bottom:1px solid var(--border)}
.layer .idx{font-size:32px;font-weight:800;line-height:1;letter-spacing:-.04em;color:rgba(242,177,60,.45)}
.layer h3{font-size:18px;margin-bottom:9px}
.layer p{color:var(--text-soft);font-size:15.7px;max-width:74ch}
/* ---------- Criteria ---------- */
.crit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.crit{
  padding:22px 22px 24px;border-radius:var(--radius);background:var(--surface);
  border:1px solid var(--border);border-top:3px solid rgba(242,177,60,.55);transition:.22s;
}
.crit:hover{transform:translateY(-3px);border-color:rgba(242,177,60,.4)}
.crit .no{font-size:12.4px;font-weight:800;letter-spacing:.14em;color:var(--gold);text-transform:uppercase}
.crit h3{font-size:16.6px;margin:10px 0 9px}
.crit p{font-size:14.8px;color:var(--text-soft)}
/* ---------- Steps ---------- */
.steps{display:flex;flex-direction:column;gap:2px;counter-reset:step}
.step{display:grid;grid-template-columns:52px minmax(0,1fr);gap:18px;align-items:start;padding:20px 0;border-bottom:1px solid var(--border)}
.step:last-child{border-bottom:0}
.step-num{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#1b1203;background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  box-shadow:0 12px 26px -14px rgba(242,177,60,.9);
}
.step h3{font-size:17px;margin-bottom:7px}
.step p{color:var(--text-soft);font-size:15.4px;max-width:76ch}
.warn-panel{
  margin-top:26px;border:1px solid rgba(239,83,80,.34);background:rgba(239,83,80,.07);
  border-radius:var(--radius-lg);padding:22px 24px;
}
.warn-panel h3{font-size:16.6px;color:#ffb4b2;margin-bottom:12px}
.warn-panel ul{display:flex;flex-direction:column;gap:9px}
.warn-panel li{position:relative;padding-left:22px;font-size:15px;color:var(--text-soft)}
.warn-panel li::before{content:"";position:absolute;left:0;top:.66em;width:9px;height:2px;background:var(--red);border-radius:2px}
/* ---------- Table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface)}
table.data-table{width:100%;border-collapse:collapse;min-width:680px}
.data-table th,.data-table td{padding:14px 18px;text-align:left;font-size:14.6px;border-bottom:1px solid var(--border)}
.data-table thead th{
  font-size:12.4px;letter-spacing:.11em;text-transform:uppercase;color:var(--gold-soft);
  background:rgba(242,177,60,.07);font-weight:700;white-space:nowrap;
}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table tbody tr:hover{background:rgba(148,163,184,.05)}
.data-table td[data-kieu="tai"]{color:var(--emerald);font-weight:700}
.data-table td[data-kieu="xiu"]{color:var(--red);font-weight:700}
.data-table td strong{color:var(--text)}
/* ---------- Scenarios ---------- */
.scenario-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.scenario{
  background:var(--surface);border-left:3px solid rgba(242,177,60,.6);
  border-radius:0 var(--radius) var(--radius) 0;padding:22px 24px;transition:.22s;
}
.scenario:hover{transform:translateX(4px);background:var(--surface-2)}
.scenario h3{font-size:17px;margin-bottom:10px}
.scenario p{font-size:14.9px;color:var(--text-soft);margin-bottom:12px}
.scenario .scenario-note{font-size:13.6px;color:var(--gold-soft);font-weight:600}
/* ---------- Category matrix ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.cat-entry{
  display:block;padding:26px 24px;border-radius:var(--radius-lg);
  border:1px solid var(--border);background:var(--surface);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.cat-entry:hover{transform:translateY(-4px);border-color:rgba(242,177,60,.5);background:var(--surface-2)}
.cat-index{font-size:12.4px;font-weight:800;letter-spacing:.14em;color:var(--gold);text-transform:uppercase}
.cat-entry h3{font-size:17.4px;margin:12px 0 10px}
.cat-entry p{font-size:14.8px;color:var(--text-soft)}
.cat-more{display:inline-block;margin-top:16px;font-size:13.6px;font-weight:700;color:var(--gold-soft)}
/* ---------- Post list ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--border);background:var(--surface);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(242,177,60,.42);box-shadow:var(--shadow-soft)}
.post-thumb{display:block;overflow:hidden}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px}
.post-meta{font-size:12.4px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}
.post-title{font-size:16.8px;line-height:1.4}
.post-title a:hover{color:var(--gold-soft)}
.post-summary{font-size:14.6px;color:var(--text-soft);line-height:1.6}
.list-more{margin-top:30px;display:flex;justify-content:flex-start}
.empty-note{padding:22px 24px;border:1px dashed var(--border-strong);border-radius:var(--radius);color:var(--muted);font-size:15px}
/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);overflow:hidden;transition:border-color .22s}
.faq-item[open]{border-color:rgba(242,177,60,.42)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 52px 18px 22px;position:relative;
  font-size:16.4px;font-weight:700;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:700;color:var(--gold);line-height:1;
}
.faq-item[open] summary::after{content:"–"}
.faq-item summary:hover{color:var(--gold-soft)}
.faq-item p{padding:0 22px 20px;color:var(--text-soft);font-size:15.4px;line-height:1.7;max-width:78ch}
/* ---------- CTA band ---------- */
.cta-band{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:clamp(22px,3.5vw,42px);align-items:center;
  border:1px solid rgba(242,177,60,.3);border-radius:var(--radius-xl);
  background:
    radial-gradient(620px 320px at 12% -10%,rgba(242,177,60,.18),transparent 62%),
    var(--surface);
  padding:clamp(28px,4vw,46px);
}
.cta-band h2{font-size:clamp(21px,2.7vw,30px);margin-bottom:12px}
.cta-band p{color:var(--text-soft);font-size:16px;max-width:62ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
/* ---------- FAB ---------- */
.fab-support{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;
  background:radial-gradient(circle at 32% 26%,#3b2a12,#150f08 70%);
  border:2px solid var(--gold);
  box-shadow:0 6px 25px rgba(245,158,11,.35);
  opacity:.85;
  transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;
}
.fab-inner{display:grid;place-items:center;animation:fabFloat 3.6s ease-in-out infinite}
.fab-support .fab-ico{transition:transform .55s cubic-bezier(.34,1.4,.64,1)}
.fab-support:hover{transform:scale(1.1);opacity:1;box-shadow:0 12px 34px rgba(245,158,11,.6)}
.fab-support:hover .fab-ico{transform:rotate(360deg)}
.fab-support:active{transform:scale(.95) translateY(3px)}
.fab-dot{
  position:absolute;top:-3px;right:-3px;width:14px;height:14px;border-radius:50%;
  background:#dc2626;box-shadow:0 0 0 3px rgba(8,13,18,.9);
}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--border);background:var(--bg-2);padding:clamp(44px,5.5vw,68px) 0 26px}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:clamp(26px,4vw,56px)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand strong{font-size:16px}
.footer-about{color:var(--muted);font-size:14.4px;line-height:1.7;max-width:52ch}
.footer-col h4{font-size:13.4px;letter-spacing:.12em;text-transform:uppercase;color:var(--gold-soft);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14.6px;color:var(--text-soft);transition:.2s}
.footer-col a:hover{color:var(--gold-soft)}
.footer-bottom{
  margin-top:clamp(30px,4vw,48px);padding-top:22px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13.4px;color:var(--muted)}
.footer-note{max-width:60ch}
/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:4px;display:none;
    background:rgba(8,13,18,.98);border-bottom:1px solid var(--border);
    padding:12px clamp(16px,4vw,32px) 18px;
  }
  .main-nav.is-open{display:flex}
  .nav-toggle{display:flex}
  .header-actions{margin-left:auto}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:30px}
  .split{grid-template-columns:minmax(0,1fr);gap:30px}
  .crit-grid,.scenario-grid,.cat-grid,.post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-col ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px 24px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .layer{grid-template-columns:64px minmax(0,1fr);gap:16px}
  .layer .idx{font-size:26px}
  .crit-grid,.scenario-grid,.cat-grid,.post-grid{grid-template-columns:minmax(0,1fr)}
  .brand-text small{display:none}
  .header-actions .btn{padding:9px 14px;font-size:13px}
  .hero-actions .btn,.cta-actions .btn{width:100%}
}
@media (max-width:520px){
  .header-inner{min-height:64px;gap:10px}
  .brand-text strong{font-size:13.4px;max-width:15ch;line-height:1.25}
  .step{grid-template-columns:44px minmax(0,1fr);gap:14px}
  .step-num{width:38px;height:38px;border-radius:12px;font-size:13.6px}
  .data-table th,.data-table td{padding:12px 14px;font-size:13.8px}
  .footer-col ul{grid-template-columns:minmax(0,1fr)}
  .fab-support{left:12px;bottom:84px;width:52px;height:52px}
}

/* roulang page: category3 */
:root{
  --bg:#080d12;
  --bg-2:#0b131a;
  --surface:#101a24;
  --surface-2:#16222e;
  --border:rgba(148,163,184,.15);
  --border-strong:rgba(148,163,184,.3);
  --text:#e9eef4;
  --text-soft:#b5c1cf;
  --muted:#8494a6;
  --gold:#f2b13c;
  --gold-soft:#fcd34d;
  --emerald:#2fd39a;
  --red:#ef5350;
  --radius-xl:24px;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 24px 55px -30px rgba(0,0,0,.95);
  --shadow-soft:0 12px 32px -20px rgba(0,0,0,.8);
  --maxw:1180px;
  --gap:clamp(16px,2.3vw,26px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.26;letter-spacing:-.015em;font-weight:800}
p{margin:0}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,32px)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:12px;font-size:14.5px;font-weight:700;
  letter-spacing:.01em;border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--gold-soft),var(--gold));color:#1b1203;box-shadow:0 14px 32px -16px rgba(242,177,60,.9)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 40px -16px rgba(242,177,60,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--border-strong);color:var(--text);background:rgba(148,163,184,.06)}
.btn-ghost:hover{background:rgba(148,163,184,.14);border-color:rgba(242,177,60,.5);color:var(--gold-soft)}
.btn-outline-gold{border-color:rgba(242,177,60,.45);color:var(--gold-soft);background:rgba(242,177,60,.08)}
.btn-outline-gold:hover{background:rgba(242,177,60,.16)}
.btn-sm{padding:10px 17px;font-size:13.5px;border-radius:10px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(8,13,18,.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:16px;min-height:70px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  font-weight:800;font-size:14px;letter-spacing:.5px;color:#0a0f14;
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  box-shadow:0 10px 24px -12px rgba(242,177,60,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.22}
.brand-text strong{font-size:14.8px;letter-spacing:-.01em}
.brand-text small{font-size:11.5px;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto}
.nav-link{
  padding:9px 13px;border-radius:10px;font-size:14px;font-weight:600;
  color:var(--text-soft);transition:.2s;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(148,163,184,.1)}
.nav-link.is-active{color:var(--gold-soft);background:rgba(242,177,60,.11)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:11px;border:1px solid var(--border);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-soft);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border);padding:clamp(48px,6.4vw,84px) 0 clamp(44px,5.4vw,68px)}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/bdeb214d103d908c.jpg') center/cover no-repeat;opacity:.22}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 460px at 6% 4%,rgba(47,211,154,.2),transparent 62%),
    radial-gradient(620px 420px at 94% 84%,rgba(242,177,60,.18),transparent 60%),
    linear-gradient(180deg,rgba(8,13,18,.72) 0%,rgba(8,13,18,.94) 58%,var(--bg) 100%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:clamp(26px,4vw,54px);align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.2px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--gold-soft);padding:7px 14px;border-radius:999px;
  border:1px solid rgba(242,177,60,.28);background:rgba(242,177,60,.08);
  margin-bottom:20px;
}
.hero h1{font-size:clamp(25px,3.7vw,42px);letter-spacing:-.022em;margin-bottom:18px;max-width:24ch}
.hero-lead{font-size:clamp(15.4px,1.5vw,17.6px);color:var(--text-soft);line-height:1.72;max-width:66ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;padding-top:24px;border-top:1px solid var(--border)}
.hero-chips li{
  font-size:13.2px;color:var(--text-soft);padding:8px 14px;border-radius:999px;
  border:1px solid var(--border);background:rgba(148,163,184,.06);
}
.hero-panel{
  background:linear-gradient(180deg,rgba(22,34,46,.92),rgba(16,26,36,.94));
  border:1px solid var(--border-strong);border-radius:var(--radius-xl);
  padding:clamp(20px,2.5vw,30px);box-shadow:var(--shadow);
}
.hero-panel-title{font-size:12.4px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.stat-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.stat-card{background:rgba(148,163,184,.05);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.stat-card strong{display:block;font-size:clamp(19px,2.4vw,25px);color:var(--gold-soft);letter-spacing:-.02em}
.stat-card span{display:block;font-size:12.6px;color:var(--muted);line-height:1.5;margin-top:6px}

/* ---------- Sections ---------- */
.section{padding:clamp(54px,6.8vw,90px) 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:760px;margin-bottom:clamp(28px,3.6vw,46px)}
.section-head h2{font-size:clamp(22px,3vw,32px);margin-bottom:14px}
.section-head p{color:var(--text-soft);font-size:16.2px;line-height:1.72}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.88fr);gap:clamp(24px,4vw,52px);align-items:center}
.split-media{border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--border-strong);box-shadow:var(--shadow);background:var(--surface-2)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.split h2{font-size:clamp(21px,2.8vw,30px);margin-bottom:16px}
.split p{color:var(--text-soft);font-size:16px;line-height:1.72}
.split p + p{margin-top:14px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.check-list li{position:relative;padding-left:30px;color:var(--text-soft);font-size:15.2px;line-height:1.65}
.check-list li::before{content:"";position:absolute;left:0;top:6px;width:16px;height:16px;border-radius:5px;background:rgba(47,211,154,.16);border:1px solid rgba(47,211,154,.48)}
.check-list li::after{content:"";position:absolute;left:4.6px;top:10px;width:6px;height:9px;border-right:2px solid var(--emerald);border-bottom:2px solid var(--emerald);transform:rotate(45deg)}

.pillar-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}
.pillar{padding:24px 22px;border-radius:var(--radius-lg);border:1px solid var(--border);background:linear-gradient(180deg,rgba(22,34,46,.86),rgba(16,26,36,.92));transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.pillar:hover{transform:translateY(-4px);border-color:rgba(242,177,60,.42);box-shadow:var(--shadow-soft)}
.pillar-idx{font-size:11.6px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-soft)}
.pillar h3{font-size:17.4px;margin:12px 0 10px}
.pillar p{color:var(--text-soft);font-size:14.6px;line-height:1.68}

.tier-list{display:flex;flex-direction:column;gap:14px}
.tier{display:grid;grid-template-columns:210px minmax(0,1fr);gap:22px;align-items:center;padding:18px 20px;border:1px solid var(--border);border-radius:var(--radius);background:rgba(148,163,184,.04);transition:.22s}
.tier:hover{border-color:rgba(47,211,154,.42);background:rgba(47,211,154,.05)}
.tier-meta strong{display:block;font-size:15.4px}
.tier-meta span{display:block;font-size:12.8px;color:var(--gold-soft);font-weight:700;margin-top:4px}
.tier-bar{height:10px;border-radius:999px;background:rgba(148,163,184,.14);overflow:hidden}
.tier-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--emerald),var(--gold-soft))}
.tier-desc{font-size:14.2px;color:var(--text-soft);margin-top:9px;line-height:1.62}
.note-box{
  margin-top:26px;padding:20px 22px;border-radius:var(--radius);
  border:1px solid rgba(242,177,60,.3);background:rgba(242,177,60,.07);
  color:var(--text-soft);font-size:15px;line-height:1.7;
}
.note-box strong{color:var(--gold-soft)}

.mind-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.mind-item{padding:22px;border-radius:var(--radius-lg);border:1px solid var(--border);border-left:3px solid rgba(239,83,80,.6);background:var(--surface);transition:.22s}
.mind-item:hover{border-color:rgba(148,163,184,.34);border-left-color:var(--red);box-shadow:var(--shadow-soft)}
.mind-item.is-wide{grid-column:1/-1}
.mind-item h3{font-size:16.8px;margin-bottom:10px}
.mind-item p{color:var(--text-soft);font-size:14.6px;line-height:1.68}
.mind-item p + p{margin-top:8px}
.mind-item b{color:var(--text);font-weight:700}

.step-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}
.step{padding:24px 22px;border-radius:var(--radius-lg);border:1px solid var(--border);background:rgba(148,163,184,.04);transition:.22s}
.step:hover{transform:translateY(-4px);border-color:rgba(47,211,154,.4)}
.step-num{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:14.5px;color:#082018;background:linear-gradient(135deg,var(--emerald),#8ef0c6)}
.step h3{font-size:16.8px;margin:16px 0 10px}
.step p{color:var(--text-soft);font-size:14.6px;line-height:1.68}

.metric-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);margin-top:clamp(28px,3.4vw,44px)}
.metric{padding:20px;border-radius:var(--radius);border:1px dashed var(--border-strong);background:rgba(8,13,18,.42)}
.metric strong{display:block;font-size:14.6px;margin-bottom:8px;color:var(--text)}
.metric span{font-size:13.4px;color:var(--muted);line-height:1.62}

.cat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.cat-card{display:flex;flex-direction:column;gap:12px;padding:26px 24px;border-radius:var(--radius-xl);border:1px solid var(--border);background:linear-gradient(180deg,rgba(22,34,46,.9),rgba(16,26,36,.94));transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.cat-card:hover{transform:translateY(-5px);border-color:rgba(242,177,60,.45);box-shadow:var(--shadow)}
.cat-label{font-size:11.8px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-soft);font-weight:700}
.cat-card h3{font-size:18.4px}
.cat-card p{color:var(--text-soft);font-size:14.8px;line-height:1.66}
.cat-link{margin-top:auto;font-size:14px;font-weight:700;color:var(--gold-soft);display:inline-flex;align-items:center;gap:7px}
.cat-link::after{content:"→";transition:transform .2s}
.cat-card:hover .cat-link::after{transform:translateX(4px)}
.cat-card.is-current{border-color:rgba(47,211,154,.45);background:linear-gradient(180deg,rgba(20,42,38,.92),rgba(16,26,36,.94))}
.cat-current-tag{font-size:11.8px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--emerald);background:rgba(47,211,154,.12);border:1px solid rgba(47,211,154,.3);padding:5px 11px;border-radius:999px;align-self:flex-start}

.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.post-card{display:flex;flex-direction:column;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);background:var(--surface);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.post-card:hover{transform:translateY(-5px);border-color:rgba(242,177,60,.4);box-shadow:var(--shadow-soft)}
.post-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-tag{align-self:flex-start;font-size:11.4px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--emerald);background:rgba(47,211,154,.1);border:1px solid rgba(47,211,154,.28);padding:5px 10px;border-radius:999px}
.post-body h3{font-size:16.4px;line-height:1.45}
.post-body h3 a:hover{color:var(--gold-soft)}
.post-body p{font-size:14.2px;color:var(--text-soft);line-height:1.62}
.post-date{font-size:12.4px;color:var(--muted);margin-top:auto}
.list-empty{padding:30px;border:1px dashed var(--border-strong);border-radius:var(--radius);color:var(--muted);text-align:center}

.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);overflow:hidden}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:700;font-size:15.6px;display:flex;justify-content:space-between;gap:16px;align-items:center;transition:background .2s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--gold-soft);font-size:20px;font-weight:700;line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item summary:hover{background:rgba(148,163,184,.06)}
.faq-body{padding:0 22px 20px;color:var(--text-soft);font-size:15px;line-height:1.7}

.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  border:1px solid rgba(242,177,60,.3);
  padding:clamp(32px,4.4vw,56px) clamp(22px,4vw,52px);
  text-align:center;
  background:
    radial-gradient(620px 320px at 50% 0%,rgba(242,177,60,.2),transparent 65%),
    linear-gradient(180deg,rgba(22,34,46,.95),rgba(11,19,26,.98));
}
.cta-band h2{font-size:clamp(21px,2.8vw,30px);margin:0 auto 14px;max-width:28ch}
.cta-band p{color:var(--text-soft);max-width:66ch;margin:0 auto 26px;font-size:16.2px;line-height:1.72}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--border);padding:clamp(40px,5vw,64px) 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:clamp(24px,3.4vw,44px)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand strong{font-size:15px}
.footer-about{color:var(--muted);font-size:14px;line-height:1.72;max-width:46ch}
.footer-col h4{font-size:13.4px;letter-spacing:.08em;text-transform:uppercase;color:var(--gold-soft);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14.2px;color:var(--text-soft);transition:.2s}
.footer-col ul a:hover{color:var(--gold-soft);padding-left:3px}
.footer-bottom{margin-top:clamp(28px,3.4vw,44px);padding-top:20px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}
.footer-bottom p{font-size:13px;color:var(--muted)}
.footer-note{max-width:60ch;text-align:right}

/* ---------- FAB ---------- */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;
  background:radial-gradient(circle at 30% 25%,#243240,#0c141c 72%);
  border:2px solid var(--gold);
  box-shadow:0 6px 25px rgba(242,177,60,.35);
  opacity:.85;
  transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 10px 34px rgba(242,177,60,.5)}
.fab:active{transform:scale(.95) translateY(3px)}
.fab svg{width:24px;height:24px;stroke:var(--gold-soft);transition:transform .5s ease}
.fab:hover svg{transform:rotate(360deg)}
.fab-dot{position:absolute;top:-1px;right:-1px;width:14px;height:14px;border-radius:50%;background:#dc2626;border:2px solid #fff}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .main-nav{
    position:fixed;top:70px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:14px clamp(16px,4vw,32px) 22px;
    background:rgba(8,13,18,.98);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border);
    display:none;max-height:calc(100vh - 70px);overflow-y:auto;
  }
  .main-nav.is-open{display:flex}
  .nav-toggle{display:flex}
  .nav-link{padding:12px 14px;font-size:15px}
  .hero-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .pillar-grid,.step-list,.metric-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .brand-text small{display:none}
  .header-actions .btn{display:none}
  .mind-list{grid-template-columns:1fr}
  .tier{grid-template-columns:1fr;gap:12px}
  .footer-grid{grid-template-columns:1fr}
  .footer-note{text-align:left}
  .hero-chips li{font-size:12.6px}
}
@media (max-width:520px){
  .pillar-grid,.step-list,.metric-row,.post-grid,.stat-list{grid-template-columns:1fr}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .cta-actions{flex-direction:column}
  .fab{left:12px;bottom:88px;width:52px;height:52px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}