/* roulang page: index */
:root{
  --bg-900:#051F14;
  --bg-800:#0B2E1E;
  --bg-700:#0F3A26;
  --surface:rgba(255,255,255,.04);
  --surface-2:rgba(255,255,255,.075);
  --line:rgba(245,158,11,.22);
  --line-soft:rgba(255,255,255,.08);
  --gold:#F59E0B;
  --gold-2:#FCD34D;
  --gold-dark:#B45309;
  --red:#DC2626;
  --ink:#F8FAFC;
  --ink-2:#D1FAE5;
  --muted:#A3A375;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-sm:0 8px 22px rgba(0,0,0,.32);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  background:var(--bg-900);
  color:var(--ink);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.28;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(1.65rem,1.1rem + 2.3vw,2.9rem)}
h2{font-size:clamp(1.3rem,1rem + 1.4vw,2.05rem)}
h3{font-size:clamp(1.02rem,.94rem + .45vw,1.28rem)}
h4{font-size:1rem;font-weight:600}
p{margin:0 0 1rem}
p:last-child{margin-bottom:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
:focus-visible{outline:2px solid var(--gold-2);outline-offset:3px;border-radius:6px}

/* ============ HEADER ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(5,31,20,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:74px;padding:10px 0;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold-2),var(--gold) 55%,var(--gold-dark));
  color:#0B2E1E;font-size:1.15rem;
  box-shadow:0 6px 18px rgba(245,158,11,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:.95rem;font-weight:700;color:var(--ink)}
.brand-text small{font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--gold-2);font-weight:600}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  padding:9px 14px;border-radius:999px;
  font-size:.9rem;font-weight:500;color:var(--ink-2);
  transition:background .22s,color .22s,transform .22s;
  white-space:nowrap;
}
.main-nav a:hover{background:var(--surface-2);color:#fff;transform:translateY(-1px)}
.main-nav a.active{background:rgba(245,158,11,.14);color:var(--gold-2);box-shadow:inset 0 0 0 1px var(--line)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-ghost{
  padding:9px 18px;border-radius:999px;font-size:.88rem;font-weight:600;
  color:var(--gold-2);border:1px solid var(--line);
  transition:background .22s,border-color .22s,color .22s;
}
.btn-ghost:hover{background:rgba(245,158,11,.12);border-color:var(--gold);color:#fff}
.btn-gold{
  padding:10px 20px;border-radius:999px;font-size:.88rem;font-weight:700;
  color:#08281A;background:linear-gradient(135deg,var(--gold-2),var(--gold));
  box-shadow:0 8px 20px rgba(245,158,11,.3);
  transition:transform .22s,box-shadow .22s,filter .22s;
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(245,158,11,.45);filter:brightness(1.05);color:#08281A}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--surface-2);border:1px solid var(--line);
  color:var(--gold-2);cursor:pointer;
}

/* ============ GLOBAL BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:14px;border:1px solid transparent;
  font-weight:600;font-size:.95rem;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;
}
.btn-lg{padding:15px 30px;font-size:1rem}
.btn-block{width:100%;border:0}
.btn-gold{border:0;background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#08281A;box-shadow:0 10px 26px rgba(245,158,11,.32)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(245,158,11,.46)}
.btn-gold:active{transform:translateY(0) scale(.98)}
.btn-outline{
  background:transparent;border:1px solid var(--line);color:var(--gold-2);
}
.btn-outline:hover{background:rgba(245,158,11,.12);border-color:var(--gold);color:#fff;transform:translateY(-2px)}

/* ============ SECTION SYSTEM ============ */
main{display:block}
.section{padding:76px 0;position:relative}
.section-alt{background:var(--bg-800);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold-2);margin-bottom:14px;
}
.section-head p,.lead{color:var(--ink-2);font-size:1rem}
.lead-muted{color:var(--muted)}

/* ============ HERO ============ */
.hero{
  position:relative;padding:150px 0 84px;overflow:hidden;
  background:linear-gradient(160deg,#04180F 0%,#0B2E1E 55%,#062417 100%);
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.24;filter:saturate(.7);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(900px 480px at 76% 18%,rgba(245,158,11,.16),transparent 62%),
             linear-gradient(180deg,rgba(5,31,20,.35),rgba(5,31,20,.94));
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start;
}
.hero h1{color:#fff;margin-bottom:18px}
.hero-lead{color:var(--ink-2);font-size:1.02rem;max-width:640px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px}
.hero-points span{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;font-size:.83rem;font-weight:500;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);
}
.hero-points i{color:var(--gold-2)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-badges{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:26px;
  padding-top:22px;border-top:1px solid var(--line-soft);
}
.badge-soft{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 13px;border-radius:10px;font-size:.78rem;font-weight:600;
  background:var(--surface);border:1px solid var(--line-soft);color:var(--ink-2);
}
.badge-18{
  padding:7px 11px;border-radius:10px;font-weight:700;font-size:.78rem;
  background:rgba(220,38,38,.16);border:1px solid rgba(220,38,38,.45);color:#FCA5A5;
}

/* QUIZ CARD */
.quiz-card{
  background:linear-gradient(165deg,rgba(15,58,38,.94),rgba(5,31,20,.96));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow);
}
.quiz-card h2{font-size:1.16rem;margin-bottom:8px;color:#fff}
.quiz-sub{font-size:.88rem;color:var(--muted);margin-bottom:18px}
.quiz-options{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.quiz-opt{
  flex:1 1 calc(33.333% - 8px);min-width:74px;
  padding:11px 6px;border-radius:12px;cursor:pointer;
  background:var(--surface);border:1px solid var(--line-soft);
  color:var(--ink-2);font-weight:600;font-size:.86rem;
  transition:background .2s,border-color .2s,color .2s,transform .2s;
}
.quiz-opt:hover{background:var(--surface-2);border-color:var(--line);transform:translateY(-2px)}
.quiz-opt.is-active{background:rgba(245,158,11,.18);border-color:var(--gold);color:#fff}
.quiz-preview{
  background:rgba(0,0,0,.28);border:1px solid var(--line-soft);
  border-radius:var(--radius);padding:16px;margin-bottom:18px;
}
.preview-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:7px 0;font-size:.87rem;border-bottom:1px dashed rgba(255,255,255,.08)}
.preview-row:last-of-type{border-bottom:0}
.preview-row span{color:var(--muted)}
.preview-row strong{color:var(--gold-2);font-weight:700}
.preview-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:12px}
.preview-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--gold-dark),var(--gold-2));transition:width .45s ease}

/* ============ METRICS ============ */
.metrics{background:var(--bg-700);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.metric{padding:26px 22px;border-right:1px solid var(--line-soft)}
.metric:last-child{border-right:0}
.metric-num{display:block;font-size:clamp(1.35rem,1.1rem + .9vw,1.9rem);font-weight:800;color:var(--gold-2);letter-spacing:-.02em}
.metric-label{display:block;font-size:.84rem;color:var(--ink-2);margin-top:6px}

/* ============ CATALOG / DIRECTORY ============ */
.catalog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.catalog-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--line-soft);
  transition:border-color .24s,transform .24s,background .24s;
}
.catalog-item:hover{border-color:var(--line);background:var(--surface-2);transform:translateY(-3px)}
.catalog-item .num{
  flex:0 0 42px;width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;font-weight:800;color:var(--gold-2);
  background:rgba(245,158,11,.12);border:1px solid var(--line);
}
.catalog-item h4{margin-bottom:6px;color:#fff}
.catalog-item p{font-size:.88rem;color:var(--muted);margin:0}

/* ============ VALUE GRID ============ */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.value-card{
  padding:26px;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  border:1px solid var(--line-soft);
  transition:transform .26s,border-color .26s,box-shadow .26s;
  text-align:left;
}
.value-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--shadow-sm)}
.value-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold-2),var(--gold));color:#0B2E1E;
  font-size:1.15rem;margin-bottom:16px;
}
.value-card h3{color:#fff;margin-bottom:8px}
.value-card p{font-size:.9rem;color:var(--ink-2);margin:0}

/* ============ MATRIX ============ */
.matrix{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.matrix-card{
  padding:20px 16px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--line-soft);
  border-top:3px solid var(--gold);
  transition:transform .24s,background .24s;
}
.matrix-card:hover{transform:translateY(-3px);background:var(--surface-2)}
.matrix-range{font-size:1.25rem;font-weight:800;color:var(--gold-2);display:block;margin-bottom:4px}
.matrix-pick{font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700;display:block;margin-bottom:10px}
.matrix-card p{font-size:.85rem;color:var(--ink-2);margin:0}
.matrix-card.hot{border-top-color:var(--red);background:rgba(220,38,38,.07)}

/* ============ CHART ============ */
.chart-panel{
  background:var(--surface);border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);padding:28px;
}
.chart-row{margin-bottom:20px}
.chart-row:last-child{margin-bottom:0}
.chart-meta{display:flex;justify-content:space-between;font-size:.87rem;margin-bottom:8px;gap:12px}
.chart-meta span{color:var(--ink-2);font-weight:600}
.chart-meta strong{color:var(--gold-2)}
.chart-track{height:12px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.chart-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--gold-dark),var(--gold-2));width:0;transition:width 1s ease}
.chart-fill.warn{background:linear-gradient(90deg,#7F1D1D,#F87171)}
.chart-note{font-size:.82rem;color:var(--muted);margin-top:18px}

/* ============ COMPARE ============ */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.compare-col{border-radius:var(--radius-lg);padding:26px;border:1px solid var(--line-soft);background:var(--surface)}
.compare-col.pro{border-color:var(--line);background:linear-gradient(165deg,rgba(245,158,11,.10),rgba(255,255,255,.015))}
.compare-col h3{color:#fff;font-size:1.05rem;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.compare-col.pro h3 i{color:var(--gold-2)}
.compare-col.con h3 i{color:#F87171}
.compare-list li{display:flex;gap:11px;padding:10px 0;font-size:.89rem;color:var(--ink-2);border-bottom:1px dashed rgba(255,255,255,.07)}
.compare-list li:last-child{border-bottom:0}
.compare-list i{margin-top:4px;font-size:.8rem}
.compare-col.pro .compare-list i{color:var(--gold-2)}
.compare-col.con .compare-list i{color:#F87171}

/* ============ TIMELINE ============ */
.timeline{position:relative;padding-left:26px;border-left:2px solid var(--line)}
.tl-item{position:relative;padding:0 0 28px 22px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-33px;top:5px;width:14px;height:14px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 0 4px rgba(245,158,11,.16);
}
.tl-item h4{color:#fff;margin-bottom:6px}
.tl-item p{font-size:.89rem;color:var(--muted);margin:0}
.tl-step{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold-2);font-weight:700;display:block;margin-bottom:4px}

/* ============ TOPIC / CATEGORY ENTRIES ============ */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:26px}
.topic-card{
  display:block;border-radius:var(--radius-lg);overflow:hidden;
  background:var(--surface);border:1px solid var(--line-soft);
  transition:transform .26s,border-color .26s,box-shadow .26s;
}
.topic-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--shadow-sm)}
.topic-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-700)}
.topic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.topic-card:hover .topic-thumb img{transform:scale(1.06)}
.topic-body{padding:20px}
.topic-body h3{color:#fff;font-size:1.02rem;margin-bottom:8px}
.topic-body p{font-size:.86rem;color:var(--muted);margin:0}
.tagcloud{display:flex;flex-wrap:wrap;gap:9px}
.tagcloud span{
  padding:7px 14px;border-radius:999px;font-size:.8rem;
  background:var(--surface);border:1px solid var(--line-soft);color:var(--ink-2);
  transition:background .2s,border-color .2s;
}
.tagcloud span:hover{background:var(--surface-2);border-color:var(--line);color:#fff}

/* ============ RESOURCE + NEWS LISTS ============ */
.split-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:32px;align-items:start}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
  display:flex;flex-direction:column;border-radius:var(--radius-lg);overflow:hidden;
  background:var(--surface);border:1px solid var(--line-soft);
  transition:transform .26s,border-color .26s,box-shadow .26s;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--shadow-sm)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-700)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-card:hover .news-thumb img{transform:scale(1.06)}
.news-body{padding:18px;display:flex;flex-direction:column;gap:9px;flex:1}
.tag{
  display:inline-flex;align-self:flex-start;align-items:center;
  padding:4px 11px;border-radius:999px;font-size:.7rem;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;
  background:rgba(245,158,11,.14);color:var(--gold-2);border:1px solid var(--line);
}
.news-body h3{font-size:.98rem;color:#fff;margin:0;line-height:1.45}
.news-body p{font-size:.85rem;color:var(--muted);margin:0;flex:1}
.news-date{font-size:.76rem;color:var(--gold-2);font-weight:600;letter-spacing:.04em}
.res-list{display:flex;flex-direction:column;gap:14px}
.res-item{
  display:flex;gap:16px;padding:14px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--line-soft);
  transition:border-color .24s,transform .24s;
}
.res-item:hover{border-color:var(--line);transform:translateX(4px)}
.res-item img{width:96px;height:72px;object-fit:cover;border-radius:var(--radius-sm);flex:0 0 96px}
.res-item h4{font-size:.94rem;color:#fff;margin-bottom:5px}
.res-item p{font-size:.8rem;color:var(--muted);margin:0}
.empty-note{padding:24px;border-radius:var(--radius);background:var(--surface);border:1px dashed var(--line);color:var(--muted);font-size:.9rem}

/* ============ TRUST ============ */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.trust-card{padding:22px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line-soft)}
.trust-card i{font-size:1.3rem;color:var(--gold-2);margin-bottom:12px;display:block}
.trust-card h4{color:#fff;margin-bottom:7px;font-size:.96rem}
.trust-card p{font-size:.83rem;color:var(--muted);margin:0}
.pay-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;padding-top:22px;border-top:1px solid var(--line-soft)}
.pay-row span{
  padding:8px 16px;border-radius:12px;font-size:.8rem;font-weight:600;
  background:var(--surface-2);border:1px solid var(--line-soft);color:var(--ink-2);
}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--line-soft);border-radius:var(--radius);background:var(--surface);overflow:hidden}
.faq-q{
  width:100%;text-align:left;display:flex;justify-content:space-between;gap:16px;align-items:center;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;
  font-weight:600;font-size:.95rem;color:#fff;
  transition:background .22s;
}
.faq-q:hover{background:var(--surface-2)}
.faq-q i{color:var(--gold-2);transition:transform .3s;flex-shrink:0}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 20px 20px;font-size:.88rem;color:var(--ink-2);margin:0}
.faq-item.open .faq-a{max-height:320px}

/* ============ FORM ============ */
.form-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  padding:40px;border-radius:var(--radius-lg);
  background:linear-gradient(150deg,rgba(15,58,38,.95),rgba(5,31,20,.98));
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.form-panel h2{color:#fff}
.form-side h2{margin-bottom:12px}
.form-side p{color:var(--ink-2);font-size:.94rem}
.form-side ul{margin-top:20px;display:grid;gap:10px}
.form-side li{display:flex;gap:10px;font-size:.88rem;color:var(--ink-2)}
.form-side li i{color:var(--gold-2);margin-top:4px}
.form-fields{display:grid;gap:14px}
.field label{display:block;font-size:.8rem;font-weight:600;color:var(--gold-2);margin-bottom:7px;letter-spacing:.04em}
.field input,.field select{
  width:100%;padding:13px 15px;border-radius:12px;
  background:rgba(0,0,0,.32);border:1px solid var(--line-soft);
  color:#fff;font-size:.92rem;transition:border-color .22s,background .22s;
}
.field input::placeholder{color:rgba(255,255,255,.32)}
.field input:focus,.field select:focus{outline:none;border-color:var(--gold);background:rgba(0,0,0,.45)}
.form-note{font-size:.76rem;color:var(--muted)}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;
  background:radial-gradient(circle at 30% 25%,#FCD34D,#F59E0B 48%,#B45309);
  border:2px solid #FCD34D;
  box-shadow:0 6px 25px rgba(245,158,11,.35);
  opacity:.86;
  transition:opacity .3s,transform .3s,box-shadow .3s;
  animation:fabFloat 3.4s ease-in-out infinite;
}
@keyframes fabFloat{0%,100%{translate:0 0}50%{translate:0 -7px}}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 10px 32px rgba(245,158,11,.55)}
.fab:active{transform:scale(.95) translateY(4px)}
.fab-core i{color:#3B1E00;font-size:1.28rem;transition:transform .55s ease}
.fab:hover .fab-core i{transform:rotate(360deg)}
.fab-dot{
  position:absolute;top:2px;right:2px;width:13px;height:13px;border-radius:50%;
  background:#DC2626;box-shadow:0 0 0 2px #fff;
}

/* ============ FOOTER ============ */
.site-footer{background:#03150E;border-top:1px solid var(--line);padding:60px 0 26px;color:var(--ink-2)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:34px;border-bottom:1px solid var(--line-soft)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-grid p{font-size:.86rem;color:var(--muted);line-height:1.7}
.footer-col h4{color:#fff;font-size:.92rem;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:.85rem;color:var(--muted);transition:color .2s,padding-left .2s}
.footer-col a:hover{color:var(--gold-2);padding-left:4px}
.footer-legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;padding-top:24px;font-size:.78rem;color:var(--muted)}
.footer-legal a{color:var(--gold-2)}
.resp-row{display:flex;flex-wrap:wrap;gap:10px;padding-top:18px}
.resp-row span{padding:6px 13px;border-radius:999px;font-size:.74rem;background:var(--surface);border:1px solid var(--line-soft);color:var(--muted)}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .matrix{grid-template-columns:repeat(3,1fr)}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line-soft)}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .split-layout{grid-template-columns:1fr}
}
@media (max-width:900px){
  .main-nav{
    position:absolute;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:14px 20px 20px;
    background:rgba(5,31,20,.98);
    border-bottom:1px solid var(--line);
    display:none;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:13px 14px;border-radius:12px}
  .nav-toggle{display:grid;place-items:center}
  .brand-text strong{font-size:.86rem}
  .value-grid{grid-template-columns:1fr 1fr}
  .topic-grid{grid-template-columns:1fr 1fr}
  .compare-wrap{grid-template-columns:1fr}
  .form-panel{grid-template-columns:1fr;padding:28px;gap:28px}
}
@media (max-width:640px){
  .section{padding:56px 0}
  .hero{padding:122px 0 60px}
  .brand-text small{display:none}
  .brand-text strong{font-size:.8rem}
  .btn-ghost{padding:8px 13px;font-size:.8rem}
  .btn-gold{padding:9px 15px;font-size:.8rem}
  .header-inner{gap:10px}
  .value-grid,.topic-grid,.catalog-grid,.news-grid,.trust-grid,.matrix{grid-template-columns:1fr}
  .metrics-grid{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line-soft)}
  .metric:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .quiz-opt{flex:1 1 calc(50% - 8px)}
  .res-item img{width:76px;height:60px;flex:0 0 76px}
  .fab{width:52px;height:52px;bottom:26px}
  .hero-cta .btn{width:100%}
}

/* roulang page: article */
:root{
  --bg-900:#051F14;
  --bg-800:#0B2E1E;
  --bg-700:#0F3A26;
  --surface:rgba(255,255,255,.04);
  --surface-2:rgba(255,255,255,.075);
  --line:rgba(245,158,11,.22);
  --line-soft:rgba(255,255,255,.08);
  --gold:#F59E0B;
  --gold-2:#FCD34D;
  --gold-dark:#B45309;
  --red:#DC2626;
  --ink:#F8FAFC;
  --ink-2:#D1FAE5;
  --muted:#A3A375;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-sm:0 8px 22px rgba(0,0,0,.32);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  background:var(--bg-900);
  color:var(--ink);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em}
p{margin:0 0 1rem}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}

/* ============ HEADER ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(5,31,20,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:74px;padding:10px 0;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold-2),var(--gold) 55%,var(--gold-dark));
  color:#0B2E1E;font-size:1.15rem;
  box-shadow:0 6px 18px rgba(245,158,11,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:.95rem;font-weight:700;color:var(--ink)}
.brand-text small{font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--gold-2);font-weight:600}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  padding:9px 14px;border-radius:999px;
  font-size:.9rem;font-weight:500;color:var(--ink-2);
  transition:background .22s,color .22s,transform .22s;
  white-space:nowrap;
}
.main-nav a:hover{background:var(--surface-2);color:#fff;transform:translateY(-1px)}
.main-nav a.active{background:rgba(245,158,11,.14);color:var(--gold-2);box-shadow:inset 0 0 0 1px var(--line)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-ghost{
  padding:9px 18px;border-radius:999px;font-size:.88rem;font-weight:600;
  color:var(--gold-2);border:1px solid var(--line);
  transition:background .22s,border-color .22s,color .22s;
}
.btn-ghost:hover{background:rgba(245,158,11,.12);border-color:var(--gold);color:#fff}
.btn-gold{
  padding:10px 20px;border-radius:999px;font-size:.88rem;font-weight:700;
  color:#08281A;background:linear-gradient(135deg,var(--gold-2),var(--gold));
  box-shadow:0 8px 20px rgba(245,158,11,.3);
  transition:transform .22s,box-shadow .22s,filter .22s;
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(245,158,11,.45);filter:brightness(1.05);color:#08281A}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--surface-2);border:1px solid var(--line);
  color:var(--gold-2);cursor:pointer;
}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:14px;border:1px solid transparent;
  font-weight:600;font-size:.95rem;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;
}
.btn-lg{padding:15px 30px;font-size:1rem}
.btn-gold-solid{border:0;background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#08281A;box-shadow:0 10px 26px rgba(245,158,11,.32)}
.btn-gold-solid:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(245,158,11,.46);color:#08281A}
.btn-gold-solid:active{transform:translateY(0) scale(.98)}
.btn-outline-gold{background:transparent;border:1px solid var(--line);color:var(--gold-2)}
.btn-outline-gold:hover{background:rgba(245,158,11,.12);border-color:var(--gold);color:#fff;transform:translateY(-2px)}
:focus-visible{outline:2px solid var(--gold-2);outline-offset:3px}

/* ============ SECTION SYSTEM ============ */
main{display:block;padding-top:74px}
.section{padding:70px 0;position:relative}
.section-alt{background:var(--bg-800);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:760px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold-2);margin-bottom:14px;
}
.section-head p,.lead{color:var(--ink-2);font-size:1rem}
h2.section-title{font-size:clamp(1.4rem,2.6vw,2rem);color:#fff}
h3{color:#fff}

/* ============ ARTICLE HERO ============ */
.art-hero{
  position:relative;overflow:hidden;
  padding:56px 0 48px;
  background:linear-gradient(150deg,#04180F 0%,#0B2E1E 58%,#062417 100%);
  border-bottom:1px solid var(--line);
}
.art-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.18;filter:saturate(.65);
}
.art-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(760px 380px at 84% 12%,rgba(245,158,11,.18),transparent 62%),
             linear-gradient(180deg,rgba(5,31,20,.35),rgba(5,31,20,.95));
}
.art-hero .container{position:relative;z-index:2}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:.82rem;color:var(--muted);margin-bottom:20px;
}
.crumbs a{color:var(--gold-2);transition:color .2s}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumbs i{font-size:.62rem;color:var(--muted)}
.crumbs .current{color:var(--ink-2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.art-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;
  font-size:.74rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--gold-2);background:rgba(245,158,11,.13);
  border:1px solid var(--line);margin-bottom:18px;
}
.art-hero h1{
  font-size:clamp(1.6rem,3.5vw,2.5rem);
  font-weight:800;color:#fff;max-width:900px;
  margin-bottom:20px;line-height:1.24;
}
.art-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  padding-top:18px;border-top:1px solid var(--line-soft);
  font-size:.85rem;color:var(--muted);
}
.art-meta span{display:inline-flex;align-items:center;gap:8px}
.art-meta i{color:var(--gold)}

/* ============ ARTICLE BODY / PROSE ============ */
.art-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:46px;
  align-items:start;
}
.prose{
  font-size:1.02rem;
  line-height:1.75;
  color:var(--ink-2);
  max-width:100%;
  word-break:break-word;
}
.prose > *:first-child{margin-top:0}
.prose h2{
  font-size:clamp(1.25rem,2.2vw,1.55rem);
  color:#fff;margin:2.2rem 0 1rem;padding-left:15px;
  border-left:3px solid var(--gold);line-height:1.34;
}
.prose h3{font-size:1.16rem;color:var(--gold-2);margin:1.7rem 0 .8rem}
.prose h4{font-size:1.03rem;color:#fff;margin:1.4rem 0 .6rem}
.prose p{margin-bottom:1.05rem}
.prose ul,.prose ol{padding-left:1.35rem;margin:0 0 1.1rem}
.prose li{margin-bottom:.5rem}
.prose li::marker{color:var(--gold)}
.prose strong{color:#fff;font-weight:600}
.prose em{color:var(--gold-2);font-style:normal}
.prose a{color:var(--gold-2);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:#fff}
.prose img{border-radius:var(--radius);margin:1.5rem 0;box-shadow:var(--shadow-sm)}
.prose blockquote{
  border-left:3px solid var(--gold);background:var(--surface);
  padding:1rem 1.25rem;margin:1.4rem 0;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink);
}
.prose table{width:100%;border-collapse:collapse;margin:1.4rem 0;font-size:.93rem}
.prose th,.prose td{border:1px solid var(--line-soft);padding:.7rem .9rem;text-align:left}
.prose th{background:var(--surface-2);color:var(--gold-2);font-weight:600}
.prose hr{border:0;border-top:1px solid var(--line-soft);margin:2rem 0}
.prose code{
  background:var(--surface-2);border:1px solid var(--line-soft);
  padding:.15rem .45rem;border-radius:6px;font-size:.9em;color:var(--gold-2);
}
.art-empty{
  padding:46px 30px;text-align:center;
  background:var(--surface);border:1px dashed var(--line);
  border-radius:var(--radius-lg);
}
.art-empty i{font-size:2rem;color:var(--gold);margin-bottom:14px;display:block}
.art-empty h2{font-size:1.3rem;color:#fff;margin-bottom:10px}
.art-empty p{color:var(--muted);margin-bottom:20px}

/* sidebar */
.side-stack{display:flex;flex-direction:column;gap:22px;position:sticky;top:96px}
.side-card{
  background:var(--surface);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  padding:22px;
}
.side-card h3{font-size:1rem;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--gold)}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.side-list li{display:flex;gap:11px;align-items:flex-start;font-size:.9rem;color:var(--ink-2)}
.side-list li i{color:var(--gold);margin-top:4px;font-size:.78rem}
.side-facts{display:flex;flex-direction:column;gap:0}
.side-facts div{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:11px 0;border-bottom:1px dashed var(--line-soft);font-size:.88rem;
}
.side-facts div:last-child{border-bottom:0}
.side-facts span:first-child{color:var(--muted)}
.side-facts span:last-child{color:var(--gold-2);font-weight:600;text-align:right}

/* ============ CHANNEL MATRIX ============ */
.chan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.chan-card{
  position:relative;
  background:linear-gradient(165deg,var(--bg-700),var(--bg-800));
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  display:flex;flex-direction:column;gap:12px;
  transition:transform .25s,border-color .25s,box-shadow .25s;
  overflow:hidden;
}
.chan-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--gold-2),transparent);
  opacity:0;transition:opacity .25s;
}
.chan-card:hover{transform:translateY(-5px);border-color:var(--line);box-shadow:var(--shadow)}
.chan-card:hover::before{opacity:1}
.chan-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:rgba(245,158,11,.13);border:1px solid var(--line);
  color:var(--gold-2);font-size:1.15rem;
}
.chan-card h3{font-size:1.08rem;line-height:1.35}
.chan-card p{font-size:.9rem;color:var(--muted);margin:0;flex-grow:1}
.chan-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.86rem;font-weight:600;color:var(--gold-2);
  transition:gap .22s,color .22s;
}
.chan-card:hover .chan-link{gap:13px;color:#fff}

/* ============ PLATFORM / CHANNEL BADGES ============ */
.plat-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.pay-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.pay-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 18px;border-radius:12px;font-size:.86rem;font-weight:600;
  background:var(--surface);border:1px solid var(--line-soft);color:var(--ink-2);
  transition:border-color .22s,transform .22s,color .22s;
}
.pay-badge i{color:var(--gold-2)}
.pay-badge:hover{border-color:var(--line);transform:translateY(-2px);color:#fff}
.assure-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.assure-item{
  background:var(--surface);border:1px solid var(--line-soft);
  border-radius:var(--radius);padding:18px;
}
.assure-item i{color:var(--gold);font-size:1.1rem;margin-bottom:10px;display:block}
.assure-item strong{display:block;color:#fff;font-size:.92rem;margin-bottom:5px}
.assure-item span{font-size:.82rem;color:var(--muted);line-height:1.5}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line-soft);
  border-radius:var(--radius);overflow:hidden;transition:border-color .22s;
}
.faq-item[open]{border-color:var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-weight:600;font-size:.96rem;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--gold);font-size:.8rem;flex-shrink:0;transition:transform .25s;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 22px 20px;margin:0;color:var(--ink-2);font-size:.92rem;line-height:1.7}

/* ============ CTA FORM ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  background:linear-gradient(140deg,#0B2E1E,#062417 70%);
  border:1px solid var(--line);
  padding:44px 40px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 260px at 88% 8%,rgba(245,158,11,.2),transparent 60%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.cta-inner h2{font-size:clamp(1.35rem,2.5vw,1.9rem);color:#fff;margin-bottom:14px}
.cta-inner p{color:var(--ink-2);margin-bottom:0}
.cta-form{display:grid;gap:12px}
.cta-form input,.cta-form select{
  width:100%;padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid var(--line-soft);
  color:#fff;font-size:.92rem;transition:border-color .2s,background .2s;
}
.cta-form input::placeholder{color:var(--muted)}
.cta-form input:focus,.cta-form select:focus{
  outline:none;border-color:var(--gold);background:rgba(255,255,255,.09);
}
.cta-form select option{background:#0B2E1E;color:#fff}
.form-note{font-size:.78rem;color:var(--muted);text-align:left;margin:0}

/* ============ FOOTER ============ */
.site-footer{
  background:#04180F;border-top:1px solid var(--line);
  padding:58px 0 26px;margin-top:20px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px;
  padding-bottom:34px;border-bottom:1px solid var(--line-soft);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.site-footer p{font-size:.88rem;color:var(--muted);line-height:1.65;max-width:400px}
.footer-col h4{font-size:.88rem;color:var(--gold-2);text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:.88rem;color:var(--ink-2);transition:color .2s,padding-left .2s}
.footer-col a:hover{color:var(--gold-2);padding-left:5px}
.resp-row{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  padding:20px 0;font-size:.8rem;color:var(--muted);
  border-bottom:1px solid var(--line-soft);
}
.resp-row span{display:inline-flex;align-items:center;gap:7px}
.resp-row span::before{content:"\f058";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--gold);font-size:.75rem}
.footer-legal{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:20px;font-size:.78rem;color:var(--muted);
}

/* ============ FAB ============ */
.fab-royal{
  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 34% 28%,#FCD34D,#F59E0B 52%,#B45309 100%);
  border:2px solid rgba(252,211,77,.85);
  color:#08281A;font-size:1.15rem;
  box-shadow:0 6px 25px rgba(245,158,11,.35);
  opacity:.85;
  animation:fabFloat 3.6s ease-in-out infinite;
  transition:transform .25s,opacity .25s,box-shadow .25s;
}
.fab-royal:hover{transform:scale(1.1);opacity:1;box-shadow:0 10px 32px rgba(245,158,11,.55)}
.fab-royal:hover i{animation:fabSpin .8s ease}
.fab-royal:active{transform:scale(.95) translateY(4px)}
.fab-dot{
  position:absolute;top:1px;right:1px;width:12px;height:12px;border-radius:50%;
  background:var(--red);box-shadow:0 0 0 2px #F8FAFC;
}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@keyframes fabSpin{from{transform:rotate(0)}to{transform:rotate(360deg)}}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .art-layout{grid-template-columns:1fr;gap:34px}
  .side-stack{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 260px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
  .plat-wrap,.cta-inner{grid-template-columns:1fr;gap:32px}
}
@media (max-width:991px){
  .main-nav{
    position:fixed;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;
    margin-left:0;padding:14px;gap:4px;
    background:rgba(5,31,20,.98);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:transform .25s ease,opacity .25s ease;
    max-height:calc(100vh - 74px);overflow-y:auto;
  }
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .main-nav a{padding:13px 14px;border-radius:10px}
  .nav-toggle{display:grid;place-items:center}
  .header-actions .btn-ghost{padding:8px 14px;font-size:.82rem}
  .header-actions .btn-gold{padding:9px 16px;font-size:.82rem}
  .brand-text strong{font-size:.85rem}
  .section{padding:56px 0}
  .chan-grid{grid-template-columns:1fr 1fr}
  .cta-band{padding:34px 26px}
}
@media (max-width:768px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .site-footer p{max-width:none}
  .assure-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .brand-text small{display:none}
  .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:1rem}
  .header-inner{min-height:66px;gap:10px}
  .main-nav{top:66px}
  main{padding-top:66px}
  .art-hero{padding:38px 0 34px}
  .chan-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .art-meta{gap:8px 16px;font-size:.8rem}
  .side-stack{flex-direction:column}
  .fab-royal{left:12px;bottom:82px;width:52px;height:52px}
  .btn{padding:12px 22px;font-size:.9rem}
}

/* roulang page: category2 */
:root{
      --bg-900:#051F14;
      --bg-800:#0B2E1E;
      --bg-700:#0F3A26;
      --surface:rgba(255,255,255,.04);
      --surface-2:rgba(255,255,255,.075);
      --line:rgba(245,158,11,.22);
      --line-soft:rgba(255,255,255,.08);
      --gold:#F59E0B;
      --gold-2:#FCD34D;
      --gold-dark:#B45309;
      --red:#DC2626;
      --ink:#F8FAFC;
      --ink-2:#D1FAE5;
      --muted:#A3A375;
      --radius-sm:10px;
      --radius:16px;
      --radius-lg:24px;
      --shadow:0 18px 40px rgba(0,0,0,.45);
      --shadow-sm:0 8px 22px rgba(0,0,0,.32);
      --container:1200px;
    }

    html{
      scroll-behavior:smooth;
      -webkit-text-size-adjust:100%;
    }

    *,
    *::before,
    *::after{
      box-sizing:border-box;
    }

    body{
      margin:0;
      font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
      font-size:16px;
      line-height:1.65;
      background:
        radial-gradient(800px 450px at 10% 8%,rgba(245,158,11,.08),transparent 60%),
        var(--bg-900);
      color:var(--ink);
      overflow-x:hidden;
    }

    img{
      max-width:100%;
      height:auto;
      display:block;
    }

    a{
      color:inherit;
      text-decoration:none;
    }

    button,
    input,
    select,
    textarea{
      font:inherit;
      color:inherit;
    }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible{
      outline:3px solid rgba(252,211,77,.72);
      outline-offset:3px;
    }

    ::selection{
      background:rgba(245,158,11,.85);
      color:#08281A;
    }

    .container{
      width:100%;
      max-width:var(--container);
      margin:0 auto;
      padding:0 20px;
    }

    .site-header{
      position:fixed;
      top:0;
      left:0;
      right:0;
      z-index:1000;
      background:rgba(5,31,20,.9);
      backdrop-filter:blur(14px);
      -webkit-backdrop-filter:blur(14px);
      border-bottom:1px solid var(--line);
      box-shadow:0 12px 30px rgba(0,0,0,.28);
    }

    .header-inner{
      display:flex;
      align-items:center;
      gap:18px;
      min-height:74px;
      padding:10px 0;
    }

    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      flex-shrink:0;
      min-width:0;
    }

    .brand-mark{
      width:44px;
      height:44px;
      flex:0 0 44px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(140deg,var(--gold-2),var(--gold) 55%,var(--gold-dark));
      color:#0B2E1E;
      font-size:1.15rem;
      box-shadow:0 6px 18px rgba(245,158,11,.35);
    }

    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.2;
      min-width:0;
    }

    .brand-text strong{
      font-size:.95rem;
      font-weight:700;
      color:var(--ink);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }

    .brand-text small{
      font-size:.7rem;
      letter-spacing:.08em;
      text-transform:uppercase;
      color:var(--gold-2);
      font-weight:600;
      white-space:nowrap;
    }

    .main-nav{
      display:flex;
      align-items:center;
      gap:6px;
      margin-left:auto;
    }

    .main-nav a{
      padding:9px 14px;
      border-radius:999px;
      font-size:.9rem;
      font-weight:500;
      color:var(--ink-2);
      transition:background .22s,color .22s,transform .22s;
      white-space:nowrap;
    }

    .main-nav a:hover{
      background:var(--surface-2);
      color:#fff;
      transform:translateY(-1px);
    }

    .main-nav a.active{
      background:rgba(245,158,11,.14);
      color:var(--gold-2);
      box-shadow:inset 0 0 0 1px var(--line);
    }

    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
      flex-shrink:0;
    }

    .btn-ghost{
      padding:9px 18px;
      border-radius:999px;
      font-size:.88rem;
      font-weight:600;
      color:var(--gold-2);
      border:1px solid var(--line);
      transition:background .22s,border-color .22s,color .22s;
      white-space:nowrap;
    }

    .btn-ghost:hover{
      background:rgba(245,158,11,.12);
      border-color:var(--gold);
      color:#fff;
    }

    .btn-gold{
      padding:10px 20px;
      border-radius:999px;
      font-size:.88rem;
      font-weight:700;
      color:#08281A;
      background:linear-gradient(135deg,var(--gold-2),var(--gold));
      box-shadow:0 8px 20px rgba(245,158,11,.3);
      transition:transform .22s,box-shadow .22s,filter .22s;
      white-space:nowrap;
    }

    .btn-gold:hover{
      transform:translateY(-2px);
      box-shadow:0 12px 26px rgba(245,158,11,.45);
      filter:brightness(1.05);
      color:#08281A;
    }

    .nav-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:12px;
      background:var(--surface-2);
      border:1px solid var(--line);
      color:var(--gold-2);
      cursor:pointer;
    }

    main{
      display:block;
    }

    .section{
      padding:76px 0;
      position:relative;
    }

    .section-alt{
      background:var(--bg-800);
      border-top:1px solid var(--line-soft);
      border-bottom:1px solid var(--line-soft);
    }

    .section-head{
      max-width:760px;
      margin-bottom:38px;
    }

    .section-head.center{
      margin-left:auto;
      margin-right:auto;
      text-align:center;
    }

    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-size:.74rem;
      font-weight:700;
      letter-spacing:.14em;
      text-transform:uppercase;
      color:var(--gold-2);
      margin-bottom:14px;
    }

    .section-head h2,
    .section-title{
      font-size:clamp(1.65rem,3vw,2.35rem);
      line-height:1.25;
      font-weight:800;
      margin:0 0 14px;
      color:#fff;
    }

    .section-head p,
    .lead{
      color:var(--ink-2);
      font-size:1rem;
      margin-bottom:0;
    }

    .lead-muted{
      color:var(--muted);
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      padding:13px 26px;
      border-radius:14px;
      border:1px solid transparent;
      font-weight:600;
      font-size:.95rem;
      cursor:pointer;
      transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;
    }

    .btn-lg{
      padding:15px 30px;
      font-size:1rem;
    }

    .btn-block{
      width:100%;
      border:0;
    }

    .btn-outline{
      background:transparent;
      border:1px solid var(--line);
      color:var(--gold-2);
    }

    .btn-outline:hover{
      background:rgba(245,158,11,.12);
      border-color:var(--gold);
      color:#fff;
      transform:translateY(-2px);
    }

    .hero{
      position:relative;
      padding:150px 0 84px;
      overflow:hidden;
      background:linear-gradient(160deg,#04180F 0%,#0B2E1E 55%,#062417 100%);
    }

    .hero-bg{
      position:absolute;
      inset:0;
      background-image:url('/assets/images/a8f9d16332ec87b4.jpg');
      background-size:cover;
      background-position:center;
      opacity:.23;
      filter:saturate(.72);
    }

    .hero::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(900px 480px at 76% 18%,rgba(245,158,11,.17),transparent 62%),
        linear-gradient(180deg,rgba(5,31,20,.3),rgba(5,31,20,.94));
    }

    .hero-grid{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:48px;
      align-items:center;
    }

    .hero h1{
      font-size:clamp(2rem,5vw,3.65rem);
      line-height:1.12;
      font-weight:800;
      color:#fff;
      margin:0 0 20px;
      letter-spacing:0;
      max-width:850px;
    }

    .hero-lead{
      color:var(--ink-2);
      font-size:1.03rem;
      max-width:680px;
      margin-bottom:0;
    }

    .hero-points{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:24px 0 28px;
      padding:0;
      list-style:none;
    }

    .hero-points span{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border-radius:999px;
      font-size:.83rem;
      font-weight:500;
      background:var(--surface);
      border:1px solid var(--line);
      color:var(--ink-2);
    }

    .hero-points i{
      color:var(--gold-2);
    }

    .hero-cta{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
    }

    .hero-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-top:28px;
      padding-top:22px;
      border-top:1px solid var(--line-soft);
    }

    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 13px;
      border-radius:10px;
      font-size:.78rem;
      font-weight:600;
      background:var(--surface);
      border:1px solid var(--line-soft);
      color:var(--ink-2);
    }

    .badge-18{
      padding:7px 11px;
      border-radius:10px;
      font-weight:700;
      font-size:.78rem;
      background:rgba(220,38,38,.16);
      border:1px solid rgba(220,38,38,.45);
      color:#FCA5A5;
    }

    .hero-visual{
      position:relative;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:12px;
      background:rgba(255,255,255,.035);
      box-shadow:var(--shadow);
      transform:rotate(1.2deg);
    }

    .hero-visual img{
      width:100%;
      border-radius:18px;
      aspect-ratio:4/3;
      object-fit:cover;
    }

    .hero-note{
      position:absolute;
      left:28px;
      right:28px;
      bottom:28px;
      padding:17px 18px;
      border-radius:16px;
      background:rgba(5,31,20,.9);
      border:1px solid var(--line);
      backdrop-filter:blur(12px);
      box-shadow:var(--shadow-sm);
    }

    .hero-note strong{
      display:block;
      color:var(--gold-2);
      font-size:1.05rem;
      margin-bottom:4px;
    }

    .hero-note span{
      color:var(--ink-2);
      font-size:.86rem;
    }

    .metric-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:1px;
      padding:1px;
      border:1px solid var(--line);
      border-radius:20px;
      overflow:hidden;
      background:var(--line);
      box-shadow:var(--shadow-sm);
    }

    .metric-item{
      padding:26px 24px;
      background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.025));
      min-height:146px;
    }

    .metric-item i{
      color:var(--gold-2);
      font-size:1.15rem;
      margin-bottom:15px;
    }

    .metric-item strong{
      display:block;
      color:#fff;
      font-size:1.35rem;
      line-height:1.25;
      margin-bottom:7px;
    }

    .metric-item span{
      display:block;
      color:var(--muted);
      font-size:.84rem;
    }

    .signal-layout{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:44px;
      align-items:start;
    }

    .signal-copy{
      padding-top:10px;
    }

    .signal-list{
      list-style:none;
      padding:0;
      margin:0;
    }

    .signal-list li{
      display:grid;
      grid-template-columns:48px 1fr;
      gap:16px;
      padding:20px 0;
      border-bottom:1px solid var(--line-soft);
    }

    .signal-list li:first-child{
      border-top:1px solid var(--line-soft);
    }

    .signal-index{
      width:44px;
      height:44px;
      display:grid;
      place-items:center;
      border-radius:14px;
      color:#08281A;
      font-weight:800;
      background:linear-gradient(135deg,var(--gold-2),var(--gold));
      box-shadow:0 8px 20px rgba(245,158,11,.2);
    }

    .signal-list h3{
      margin:0 0 6px;
      font-size:1.04rem;
      color:#fff;
      font-weight:700;
    }

    .signal-list p{
      margin:0;
      color:var(--ink-2);
      font-size:.92rem;
    }

    .matrix-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:20px;
    }

    .matrix-card{
      position:relative;
      padding:26px 24px;
      border-radius:18px;
      background:linear-gradient(155deg,rgba(255,255,255,.065),rgba(255,255,255,.025));
      border:1px solid var(--line-soft);
      min-height:220px;
      transition:transform .25s,border-color .25s,box-shadow .25s,background .25s;
    }

    .matrix-card:hover{
      transform:translateY(-5px);
      border-color:var(--line);
      box-shadow:0 16px 34px rgba(0,0,0,.3);
      background:linear-gradient(155deg,rgba(245,158,11,.1),rgba(255,255,255,.03));
    }

    .matrix-card .icon-box{
      width:48px;
      height:48px;
      display:grid;
      place-items:center;
      border-radius:14px;
      color:var(--gold-2);
      background:rgba(245,158,11,.12);
      border:1px solid var(--line);
      font-size:1.05rem;
      margin-bottom:18px;
    }

    .matrix-card h3{
      font-size:1.08rem;
      font-weight:700;
      color:#fff;
      margin:0 0 9px;
    }

    .matrix-card p{
      color:var(--ink-2);
      font-size:.9rem;
      margin:0;
    }

    .compare-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:0;
      border:1px solid var(--line-soft);
      border-radius:22px;
      overflow:hidden;
      box-shadow:var(--shadow-sm);
    }

    .compare-col{
      padding:34px 30px;
      background:rgba(255,255,255,.035);
    }

    .compare-col + .compare-col{
      border-left:1px solid var(--line-soft);
      background:linear-gradient(155deg,rgba(245,158,11,.1),rgba(255,255,255,.025));
    }

    .compare-col h3{
      color:#fff;
      font-size:1.25rem;
      margin:0 0 20px;
      font-weight:800;
    }

    .compare-col.bad h3{
      color:#FCA5A5;
    }

    .compare-list{
      list-style:none;
      margin:0;
      padding:0;
    }

    .compare-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:12px 0;
      color:var(--ink-2);
      border-bottom:1px solid var(--line-soft);
    }

    .compare-list li:last-child{
      border-bottom:0;
    }

    .compare-list i{
      margin-top:4px;
      flex:0 0 auto;
    }

    .compare-list .good-icon{
      color:var(--gold-2);
    }

    .compare-list .bad-icon{
      color:#F87171;
    }

    .timeline{
      position:relative;
      max-width:900px;
      margin:0 auto;
    }

    .timeline::before{
      content:"";
      position:absolute;
      left:28px;
      top:8px;
      bottom:8px;
      width:1px;
      background:linear-gradient(var(--gold),rgba(245,158,11,.08));
    }

    .timeline-item{
      position:relative;
      display:grid;
      grid-template-columns:58px 1fr;
      gap:22px;
      padding:0 0 32px;
    }

    .timeline-item:last-child{
      padding-bottom:0;
    }

    .timeline-dot{
      position:relative;
      z-index:2;
      width:56px;
      height:56px;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:#08281A;
      background:linear-gradient(135deg,var(--gold-2),var(--gold));
      font-weight:800;
      border:5px solid var(--bg-900);
      box-shadow:0 0 0 1px var(--line),0 10px 24px rgba(0,0,0,.28);
    }

    .timeline-content{
      padding:4px 0 0;
    }

    .timeline-content h3{
      color:#fff;
      font-size:1.12rem;
      margin:0 0 8px;
    }

    .timeline-content p{
      color:var(--ink-2);
      font-size:.93rem;
      margin:0;
    }

    .app-layout{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:46px;
      align-items:center;
    }

    .app-figure{
      border-radius:22px;
      padding:11px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.035);
      box-shadow:var(--shadow);
    }

    .app-figure img{
      width:100%;
      border-radius:16px;
      aspect-ratio:16/11;
      object-fit:cover;
    }

    .support-list{
      list-style:none;
      padding:0;
      margin:24px 0 28px;
    }

    .support-list li{
      display:grid;
      grid-template-columns:26px 1fr;
      gap:12px;
      padding:11px 0;
      color:var(--ink-2);
      border-bottom:1px solid var(--line-soft);
    }

    .support-list li:last-child{
      border-bottom:0;
    }

    .support-list i{
      color:var(--gold-2);
      margin-top:4px;
    }

    .quick-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }

    .quick-box{
      min-height:172px;
      padding:22px 20px;
      border-radius:16px;
      background:var(--surface);
      border:1px solid var(--line-soft);
      transition:border-color .22s,background .22s,transform .22s;
    }

    .quick-box:hover{
      border-color:var(--line);
      background:rgba(245,158,11,.07);
      transform:translateY(-3px);
    }

    .quick-box span{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:36px;
      height:36px;
      border-radius:11px;
      color:var(--gold-2);
      background:rgba(245,158,11,.12);
      border:1px solid var(--line);
      font-weight:700;
      margin-bottom:16px;
    }

    .quick-box h3{
      color:#fff;
      font-size:1rem;
      margin:0 0 7px;
      font-weight:700;
    }

    .quick-box p{
      color:var(--muted);
      font-size:.86rem;
      margin:0;
    }

    .faq-section .accordion{
      max-width:920px;
      margin:0 auto;
    }

    .faq-section .accordion-item{
      background:rgba(255,255,255,.035);
      border:1px solid var(--line-soft);
      border-radius:14px!important;
      overflow:hidden;
      margin-bottom:12px;
    }

    .faq-section .accordion-button{
      background:transparent;
      color:#fff;
      font-weight:700;
      padding:19px 22px;
      box-shadow:none;
    }

    .faq-section .accordion-button:not(.collapsed){
      background:rgba(245,158,11,.1);
      color:var(--gold-2);
    }

    .faq-section .accordion-button::after{
      filter:invert(80%) sepia(63%) saturate(493%) hue-rotate(357deg) brightness(104%) contrast(96%);
    }

    .faq-section .accordion-body{
      color:var(--ink-2);
      font-size:.94rem;
      padding:0 22px 21px;
      border-top:1px solid var(--line-soft);
    }

    .signup-shell{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:0;
      border:1px solid var(--line);
      border-radius:24px;
      overflow:hidden;
      box-shadow:var(--shadow);
      background:linear-gradient(155deg,rgba(245,158,11,.08),rgba(255,255,255,.025));
    }

    .signup-copy{
      padding:42px 38px;
      background:linear-gradient(150deg,rgba(5,31,20,.25),rgba(220,38,38,.09));
      border-right:1px solid var(--line-soft);
    }

    .signup-copy h2{
      color:#fff;
      font-size:clamp(1.7rem,3vw,2.35rem);
      line-height:1.25;
      margin:0 0 16px;
      font-weight:800;
    }

    .signup-copy p{
      color:var(--ink-2);
      margin:0;
    }

    .signup-form{
      padding:38px;
    }

    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }

    .field{
      display:flex;
      flex-direction:column;
      gap:8px;
    }

    .field.full{
      grid-column:1/-1;
    }

    .field label{
      color:var(--ink-2);
      font-size:.84rem;
      font-weight:600;
    }

    .field input,
    .field select{
      width:100%;
      min-height:50px;
      padding:12px 14px;
      border-radius:12px;
      border:1px solid var(--line-soft);
      background:rgba(0,0,0,.18);
      color:#fff;
      outline:none;
      transition:border-color .2s,box-shadow .2s,background .2s;
    }

    .field input::placeholder{
      color:rgba(209,250,229,.48);
    }

    .field input:focus,
    .field select:focus{
      border-color:var(--gold);
      box-shadow:0 0 0 3px rgba(245,158,11,.16);
      background:rgba(0,0,0,.25);
    }

    .form-checkbox{
      display:flex;
      gap:10px;
      align-items:flex-start;
      margin:18px 0;
      color:var(--muted);
      font-size:.82rem;
    }

    .form-checkbox input{
      margin-top:5px;
      accent-color:var(--gold);
      flex:0 0 auto;
    }

    .form-status{
      margin-top:14px;
      color:var(--gold-2);
      font-size:.86rem;
      min-height:24px;
    }

    .site-footer{
      background:#03150D;
      border-top:1px solid var(--line);
      padding:64px 0 28px;
    }

    .footer-grid{
      display:grid;
      grid-template-columns:1.5fr 1fr 1fr 1fr;
      gap:38px;
    }

    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:18px;
    }

    .site-footer p{
      color:var(--muted);
      font-size:.89rem;
      max-width:460px;
    }

    .footer-col h4{
      color:var(--gold-2);
      font-size:.92rem;
      margin:0 0 16px;
      font-weight:700;
    }

    .footer-col ul{
      list-style:none;
      padding:0;
      margin:0;
    }

    .footer-col li + li{
      margin-top:9px;
    }

    .footer-col a{
      color:var(--ink-2);
      font-size:.86rem;
      transition:color .2s,transform .2s;
      display:inline-block;
    }

    .footer-col a:hover{
      color:var(--gold-2);
      transform:translateX(3px);
    }

    .resp-row{
      display:flex;
      flex-wrap:wrap;
      gap:12px 24px;
      justify-content:space-between;
      margin-top:42px;
      padding:18px 0;
      border-top:1px solid var(--line-soft);
      border-bottom:1px solid var(--line-soft);
      color:var(--ink-2);
      font-size:.79rem;
    }

    .resp-row span{
      display:inline-flex;
      align-items:center;
      gap:7px;
    }

    .resp-row span::before{
      content:"";
      width:6px;
      height:6px;
      border-radius:50%;
      background:var(--gold);
      flex:0 0 auto;
    }

    .footer-legal{
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:12px 24px;
      padding-top:20px;
      color:var(--muted);
      font-size:.76rem;
    }

    .floating-fab{
      position:fixed;
      left:1rem;
      bottom:6rem;
      z-index:1050;
      width:58px;
      height:58px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#08281A;
      background:
        radial-gradient(circle at 35% 28%,#fff7cc 0,#FCD34D 20%,#F59E0B 55%,#B45309 100%);
      border:2px solid #F59E0B;
      box-shadow:0 6px 25px rgba(245,158,11,.38);
      opacity:.84;
      animation:fabFloat 2.8s ease-in-out infinite;
      transition:transform .25s,opacity .25s,box-shadow .25s;
    }

    .floating-fab:hover{
      opacity:1;
      transform:scale(1.1);
      box-shadow:0 8px 32px rgba(245,158,11,.55);
    }

    .floating-fab:active{
      transform:scale(.95) translateY(4px);
    }

    .floating-fab i{
      font-size:1.15rem;
      transition:transform .35s;
    }

    .floating-fab:hover i{
      transform:rotate(360deg);
    }

    .fab-dot{
      position:absolute;
      top:2px;
      right:2px;
      width:14px;
      height:14px;
      border-radius:50%;
      background:#DC2626;
      box-shadow:0 0 0 2px #fff,0 0 12px rgba(220,38,38,.75);
    }

    @keyframes fabFloat{
      0%,100%{transform:translateY(0)}
      50%{transform:translateY(-6px)}
    }

    @media (max-width:1100px){
      .header-inner{
        gap:12px;
      }

      .brand-text strong{
        max-width:175px;
      }

      .main-nav a{
        padding:8px 10px;
        font-size:.84rem;
      }

      .btn-ghost,
      .btn-gold{
        padding-left:14px;
        padding-right:14px;
      }

      .hero-grid{
        grid-template-columns:1fr .82fr;
        gap:30px;
      }

      .matrix-grid{
        grid-template-columns:repeat(2,1fr);
      }

      .quick-grid{
        grid-template-columns:repeat(2,1fr);
      }
    }

    @media (max-width:991px){
      .header-inner{
        min-height:72px;
      }

      .main-nav{
        position:absolute;
        top:calc(100% + 1px);
        left:20px;
        right:20px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:5px;
        padding:14px;
        border-radius:0 0 18px 18px;
        background:rgba(5,31,20,.98);
        border:1px solid var(--line);
        border-top:0;
        box-shadow:0 18px 38px rgba(0,0,0,.42);
      }

      .main-nav.open{
        display:flex;
      }

      .main-nav a{
        padding:12px 14px;
        border-radius:12px;
      }

      .nav-toggle{
        display:grid;
        place-items:center;
      }

      .hero{
        padding-top:134px;
      }

      .hero-grid,
      .signal-layout,
      .app-layout,
      .signup-shell{
        grid-template-columns:1fr;
      }

      .hero-visual{
        max-width:680px;
        transform:none;
      }

      .metric-strip{
        grid-template-columns:repeat(2,1fr);
      }

      .signup-copy{
        border-right:0;
        border-bottom:1px solid var(--line-soft);
      }

      .footer-grid{
        grid-template-columns:1.45fr 1fr 1fr;
      }

      .footer-grid > div:first-child{
        grid-column:1/-1;
      }
    }

    @media (max-width:767px){
      .container{
        padding:0 16px;
      }

      .section{
        padding:58px 0;
      }

      .brand{
        gap:8px;
      }

      .brand-mark{
        width:40px;
        height:40px;
        flex-basis:40px;
        border-radius:12px;
      }

      .brand-text strong{
        max-width:140px;
        font-size:.8rem;
      }

      .brand-text small{
        font-size:.62rem;
      }

      .header-actions{
        gap:6px;
      }

      .btn-ghost,
      .btn-gold{
        padding:8px 11px;
        font-size:.74rem;
      }

      .nav-toggle{
        width:40px;
        height:40px;
      }

      .hero{
        padding:122px 0 66px;
      }

      .hero h1{
        font-size:clamp(1.9rem,9vw,2.7rem);
      }

      .hero-note{
        left:22px;
        right:22px;
        bottom:22px;
      }

      .metric-item{
        min-height:auto;
        padding:22px 18px;
      }

      .matrix-grid{
        grid-template-columns:1fr;
      }

      .compare-wrap{
        grid-template-columns:1fr;
      }

      .compare-col + .compare-col{
        border-left:0;
        border-top:1px solid var(--line-soft);
      }

      .timeline::before{
        left:22px;
      }

      .timeline-item{
        grid-template-columns:46px 1fr;
        gap:16px;
      }

      .timeline-dot{
        width:44px;
        height:44px;
        border-width:4px;
        font-size:.88rem;
      }

      .form-grid{
        grid-template-columns:1fr;
      }

      .field.full{
        grid-column:auto;
      }

      .signup-copy,
      .signup-form{
        padding:30px 22px;
      }

      .footer-grid{
        grid-template-columns:1fr 1fr;
      }

      .footer-grid > div:first-child{
        grid-column:1/-1;
      }
    }

    @media (max-width:520px){
      .header-inner{
        gap:7px;
        padding:8px 0;
      }

      .brand{
        gap:6px;
      }

      .brand-mark{
        width:34px;
        height:34px;
        flex-basis:34px;
        border-radius:10px;
        font-size:.9rem;
      }

      .brand-text strong{
        max-width:86px;
        font-size:.68rem;
      }

      .brand-text small{
        display:none;
      }

      .header-actions{
        gap:4px;
      }

      .btn-ghost,
      .btn-gold{
        padding:7px 8px;
        font-size:.68rem;
      }

      .nav-toggle{
        width:36px;
        height:36px;
        border-radius:10px;
      }

      .hero-points{
        display:grid;
        grid-template-columns:1fr;
      }

      .hero-points span{
        justify-content:flex-start;
      }

      .hero-cta .btn{
        width:100%;
      }

      .metric-strip{
        grid-template-columns:1fr;
      }

      .quick-grid{
        grid-template-columns:1fr;
      }

      .compare-col{
        padding:26px 20px;
      }

      .signal-list li{
        grid-template-columns:40px 1fr;
        gap:12px;
      }

      .signal-index{
        width:38px;
        height:38px;
        border-radius:12px;
        font-size:.82rem;
      }

      .footer-grid{
        grid-template-columns:1fr;
        gap:28px;
      }

      .resp-row{
        display:grid;
        grid-template-columns:1fr;
      }

      .footer-legal{
        display:grid;
        grid-template-columns:1fr;
      }

      .floating-fab{
        width:56px;
        height:56px;
      }
    }

/* roulang page: category3 */
:root{
  --bg-900:#051F14;
  --bg-800:#0B2E1E;
  --bg-700:#0F3A26;
  --surface:rgba(255,255,255,.04);
  --surface-2:rgba(255,255,255,.075);
  --line:rgba(245,158,11,.22);
  --line-soft:rgba(255,255,255,.08);
  --gold:#F59E0B;
  --gold-2:#FCD34D;
  --gold-dark:#B45309;
  --red:#DC2626;
  --ink:#F8FAFC;
  --ink-2:#D1FAE5;
  --muted:#A3A375;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-sm:0 8px 22px rgba(0,0,0,.32);
  --container:1200px;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  background:var(--bg-900);
  color:var(--ink);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}

/* ============ HEADER ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(5,31,20,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:74px;padding:10px 0;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold-2),var(--gold) 55%,var(--gold-dark));
  color:#0B2E1E;font-size:1.15rem;
  box-shadow:0 6px 18px rgba(245,158,11,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:.95rem;font-weight:700;color:var(--ink)}
.brand-text small{font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--gold-2);font-weight:600}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  padding:9px 14px;border-radius:999px;
  font-size:.9rem;font-weight:500;color:var(--ink-2);
  transition:background .22s,color .22s,transform .22s;
  white-space:nowrap;
}
.main-nav a:hover{background:var(--surface-2);color:#fff;transform:translateY(-1px)}
.main-nav a.active{background:rgba(245,158,11,.14);color:var(--gold-2);box-shadow:inset 0 0 0 1px var(--line)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-ghost{
  padding:9px 18px;border-radius:999px;font-size:.88rem;font-weight:600;
  color:var(--gold-2);border:1px solid var(--line);
  transition:background .22s,border-color .22s,color .22s;
}
.btn-ghost:hover{background:rgba(245,158,11,.12);border-color:var(--gold);color:#fff}
.btn-gold{
  padding:10px 20px;border-radius:999px;font-size:.88rem;font-weight:700;
  color:#08281A;background:linear-gradient(135deg,var(--gold-2),var(--gold));
  box-shadow:0 8px 20px rgba(245,158,11,.3);
  transition:transform .22s,box-shadow .22s,filter .22s;
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(245,158,11,.45);filter:brightness(1.05);color:#08281A}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--surface-2);border:1px solid var(--line);
  color:var(--gold-2);cursor:pointer;
}

/* ============ GLOBAL BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:14px;border:1px solid transparent;
  font-weight:600;font-size:.95rem;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;
}
.btn-lg{padding:15px 30px;font-size:1rem}
.btn-block{width:100%;border:0}
.btn-gold-solid{border:0;background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#08281A;box-shadow:0 10px 26px rgba(245,158,11,.32)}
.btn-gold-solid:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(245,158,11,.46);color:#08281A}
.btn-gold-solid:active{transform:translateY(0) scale(.98)}
.btn-outline-gold{background:transparent;border:1px solid var(--line);color:var(--gold-2)}
.btn-outline-gold:hover{background:rgba(245,158,11,.12);border-color:var(--gold);color:#fff;transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--gold-2);outline-offset:2px}

/* ============ SECTION SYSTEM ============ */
main{display:block}
.section{padding:76px 0;position:relative}
.section-alt{background:var(--bg-800);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold-2);margin-bottom:14px;
}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;color:#fff;line-height:1.25;margin:0 0 12px}
.section-head p{color:var(--ink-2);font-size:1rem;margin:0}
.lead-muted{color:var(--muted)}

/* ============ HERO ============ */
.hero{
  position:relative;padding:150px 0 84px;overflow:hidden;
  background:linear-gradient(160deg,#04180F 0%,#0B2E1E 55%,#062417 100%);
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.24;filter:saturate(.7);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(900px 480px at 76% 18%,rgba(245,158,11,.16),transparent 62%),
             linear-gradient(180deg,rgba(5,31,20,.35),rgba(5,31,20,.94));
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:start;
}
.hero h1{color:#fff;font-size:clamp(1.7rem,3.1vw,2.5rem);font-weight:800;line-height:1.22;margin:0 0 18px}
.hero-lead{color:var(--ink-2);font-size:1.02rem;max-width:640px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px}
.hero-points span{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;font-size:.83rem;font-weight:500;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);
}
.hero-points i{color:var(--gold-2)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-badges{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:26px;
  padding-top:22px;border-top:1px solid var(--line-soft);
}
.badge-soft{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 13px;border-radius:10px;font-size:.78rem;font-weight:600;
  background:var(--surface);border:1px solid var(--line-soft);color:var(--ink-2);
}
.badge-18{
  padding:7px 11px;border-radius:10px;font-weight:700;font-size:.78rem;
  background:rgba(220,38,38,.16);border:1px solid rgba(220,38,38,.45);color:#FCA5A5;
}
/* Phone / download panel */
.download-panel{
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow);backdrop-filter:blur(6px);
}
.download-panel .panel-top{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.panel-thumb{
  width:64px;height:64px;flex:0 0 64px;border-radius:16px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.panel-thumb img{width:100%;height:100%;object-fit:cover}
.panel-top strong{display:block;color:#fff;font-size:1rem}
.panel-top span{color:var(--muted);font-size:.82rem}
.code-strip{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 16px;border-radius:14px;margin-bottom:16px;
  background:rgba(245,158,11,.1);border:1px dashed var(--line);
}
.code-strip b{color:var(--gold-2);font-size:1.15rem;letter-spacing:.06em}
.code-strip small{color:var(--muted);font-size:.76rem;display:block}
.spec-list{list-style:none;padding:0;margin:0 0 18px}
.spec-list li{
  display:flex;align-items:flex-start;gap:10px;
  padding:9px 0;font-size:.88rem;color:var(--ink-2);
  border-bottom:1px solid var(--line-soft);
}
.spec-list li:last-child{border-bottom:0}
.spec-list i{color:var(--gold-2);margin-top:4px}

/* ============ METRIC BOARD ============ */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.metric-card{
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:22px 20px;transition:transform .25s,border-color .25s,box-shadow .25s;
}
.metric-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--shadow-sm)}
.metric-card .num{font-size:1.7rem;font-weight:800;color:var(--gold-2);line-height:1.1}
.metric-card .label{font-size:.85rem;color:var(--ink-2);margin-top:6px;font-weight:600}
.metric-card .sub{font-size:.78rem;color:var(--muted);margin-top:4px}

/* ============ FEATURE / SERVICE MATRIX ============ */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.matrix-card{
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:26px 22px;position:relative;overflow:hidden;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.matrix-card:hover{transform:translateY(-5px);border-color:var(--line);box-shadow:var(--shadow-sm)}
.matrix-card .ic{
  width:50px;height:50px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold-2),var(--gold));color:#08281A;
  font-size:1.15rem;margin-bottom:16px;
}
.matrix-card h3{font-size:1.05rem;color:#fff;font-weight:700;margin:0 0 10px}
.matrix-card p{color:var(--ink-2);font-size:.9rem;margin:0}
.matrix-card .tag{
  position:absolute;top:16px;right:16px;
  font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:4px 9px;border-radius:999px;background:rgba(220,38,38,.18);
  color:#FCA5A5;border:1px solid rgba(220,38,38,.4);
}

/* ============ COMPARE TABLE ============ */
.compare-wrap{
  background:var(--surface);border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);overflow:hidden;
}
.compare-head{
  display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:0;
  background:rgba(245,158,11,.08);border-bottom:1px solid var(--line);
}
.compare-head div{padding:16px 18px;font-size:.82rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--gold-2)}
.compare-row{
  display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:0;
  border-bottom:1px solid var(--line-soft);
}
.compare-row:last-child{border-bottom:0}
.compare-row div{padding:16px 18px;font-size:.9rem;color:var(--ink-2)}
.compare-row div:first-child{color:#fff;font-weight:600}
.compare-row .yes{color:#6EE7B7;font-weight:600}
.compare-row .no{color:#FCA5A5;font-weight:600}

/* ============ TIMELINE ============ */
.timeline{position:relative;padding-left:28px}
.timeline::before{
  content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--gold-2),rgba(245,158,11,.08));
}
.timeline-item{position:relative;padding:0 0 26px 8px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;left:-28px;top:4px;width:18px;height:18px;border-radius:50%;
  background:var(--bg-900);border:2px solid var(--gold);
}
.timeline-item h4{color:#fff;font-size:1rem;font-weight:700;margin:0 0 6px}
.timeline-item p{color:var(--ink-2);font-size:.9rem;margin:0}

/* ============ SCENARIO CARDS ============ */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.scene-card{
  display:grid;grid-template-columns:120px 1fr;gap:18px;align-items:center;
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:18px;transition:border-color .25s,transform .25s;
}
.scene-card:hover{border-color:var(--line);transform:translateY(-3px)}
.scene-card .thumb{border-radius:12px;overflow:hidden;border:1px solid var(--line-soft)}
.scene-card .thumb img{width:100%;height:88px;object-fit:cover}
.scene-card h3{font-size:.98rem;color:#fff;font-weight:700;margin:0 0 6px}
.scene-card p{font-size:.86rem;color:var(--ink-2);margin:0}

/* ============ PROCESS STEPS ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:24px 20px;position:relative;
}
.step .idx{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;color:#08281A;background:linear-gradient(140deg,var(--gold-2),var(--gold));
  margin-bottom:14px;
}
.step h3{font-size:.98rem;color:#fff;font-weight:700;margin:0 0 8px}
.step p{font-size:.86rem;color:var(--ink-2);margin:0}

/* ============ CMS LIST ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius);
  overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s;
  display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-5px);border-color:var(--line);box-shadow:var(--shadow-sm)}
.news-card .cover{aspect-ratio:16/9;overflow:hidden}
.news-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .cover img{transform:scale(1.05)}
.news-card .body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.news-card .meta{font-size:.74rem;color:var(--gold-2);font-weight:600;letter-spacing:.05em;text-transform:uppercase}
.news-card h3{font-size:1rem;color:#fff;font-weight:700;margin:0;line-height:1.4}
.news-card p{font-size:.85rem;color:var(--ink-2);margin:0;flex:1}
.news-card .more{font-size:.82rem;color:var(--gold-2);font-weight:600}
.empty-note{color:var(--muted);font-size:.9rem;padding:20px;text-align:center}

/* ============ FAQ ============ */
.faq-list{max-width:860px}
.faq-item{
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius);
  margin-bottom:12px;overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-weight:600;color:#fff;font-size:.96rem;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--gold-2);font-size:.8rem;transition:transform .25s;
}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item .faq-body{padding:0 22px 20px;color:var(--ink-2);font-size:.9rem}

/* ============ CTA / FORM ============ */
.cta-band{
  background:linear-gradient(140deg,#0B2E1E,#062417);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:40px;display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:800;margin:0 0 12px}
.cta-band p{color:var(--ink-2);margin:0 0 18px}
.form-panel{background:rgba(5,31,20,.6);border:1px solid var(--line-soft);border-radius:var(--radius);padding:22px}
.form-panel label{font-size:.8rem;color:var(--ink-2);font-weight:600;display:block;margin-bottom:6px}
.form-panel input,.form-panel select{
  width:100%;padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-soft);
  color:#fff;margin-bottom:14px;font-size:.9rem;
}
.form-panel input::placeholder{color:rgba(163,163,117,.8)}
.form-panel input:focus,.form-panel select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(245,158,11,.15)}
.form-note{font-size:.76rem;color:var(--muted);margin-top:10px}

/* ============ TRUST ============ */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.trust-item{
  display:flex;align-items:flex-start;gap:12px;
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:18px;
}
.trust-item i{color:var(--gold-2);font-size:1.1rem;margin-top:3px}
.trust-item strong{display:block;color:#fff;font-size:.9rem;margin-bottom:4px}
.trust-item span{font-size:.8rem;color:var(--muted)}

/* ============ FOOTER ============ */
.site-footer{
  background:#04180F;border-top:1px solid var(--line);
  padding:56px 0 30px;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;margin-bottom:30px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.site-footer p{color:var(--muted);font-size:.85rem;margin:0;max-width:420px}
.footer-col h4{color:#fff;font-size:.9rem;font-weight:700;margin:0 0 14px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col ul li{margin-bottom:9px}
.footer-col ul li a{color:var(--muted);font-size:.85rem;transition:color .2s}
.footer-col ul li a:hover{color:var(--gold-2)}
.resp-row{
  display:flex;flex-wrap:wrap;gap:10px;padding:18px 0;
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
}
.resp-row span{
  font-size:.76rem;color:var(--ink-2);padding:6px 12px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line-soft);
}
.footer-legal{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:20px;font-size:.78rem;color:var(--muted);
}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;font-size:1.25rem;
  background:linear-gradient(140deg,var(--gold-2),var(--gold) 55%,var(--gold-dark));
  color:#08281A;border:2px solid rgba(252,211,77,.7);
  box-shadow:0 6px 25px rgba(245,158,11,.4);
  opacity:.85;transition:transform .25s,opacity .25s;
  animation:fabFloat 3.2s ease-in-out infinite;
}
.fab:hover{transform:scale(1.08);opacity:1;color:#08281A}
.fab:active{transform:scale(.94) translateY(3px)}
.fab .dot{
  position:absolute;top:-2px;right:-2px;width:14px;height:14px;border-radius:50%;
  background:var(--red);box-shadow:0 0 0 2px #fff;
}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .matrix-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr}
}
@media (max-width:768px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(5,31,20,.98);border-bottom:1px solid var(--line);
    padding:10px 16px 18px;display:none;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 10px;border-radius:10px}
  .nav-toggle{display:grid;place-items:center}
  .header-actions .btn-ghost,.header-actions .btn-gold{display:none}
  .header-actions{order:3}
  .nav-toggle{order:2;margin-left:auto}
  .section{padding:58px 0}
  .hero{padding:120px 0 62px}
  .scene-grid{grid-template-columns:1fr}
  .compare-row,.compare-head{grid-template-columns:1.2fr 1fr 1fr}
}
@media (max-width:520px){
  .metric-grid{grid-template-columns:1fr}
  .matrix-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:26px}
  .scene-card{grid-template-columns:1fr}
  .scene-card .thumb img{height:140px}
  .compare-row div,.compare-head div{padding:12px 10px;font-size:.8rem}
  .btn{width:100%}
  .hero-cta{flex-direction:column;align-items:stretch}
}

/* roulang page: category1 */
:root{
  --bg-900:#051F14;
  --bg-800:#0B2E1E;
  --bg-700:#0F3A26;
  --surface:rgba(255,255,255,.04);
  --surface-2:rgba(255,255,255,.075);
  --line:rgba(245,158,11,.22);
  --line-soft:rgba(255,255,255,.08);
  --gold:#F59E0B;
  --gold-2:#FCD34D;
  --gold-dark:#B45309;
  --red:#DC2626;
  --ink:#F8FAFC;
  --ink-2:#D1FAE5;
  --muted:#A3A375;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-sm:0 8px 22px rgba(0,0,0,.32);
  --container:1200px;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  background:var(--bg-900);
  color:var(--ink);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{appearance:none}
::selection{background:rgba(245,158,11,.4);color:#fff}
:focus-visible{outline:3px solid rgba(252,211,77,.75);outline-offset:3px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(5,31,20,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px;padding:10px 0}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold-2),var(--gold) 55%,var(--gold-dark));
  color:#0B2E1E;font-size:1.15rem;
  box-shadow:0 6px 18px rgba(245,158,11,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:.95rem;font-weight:700;color:var(--ink)}
.brand-text small{font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--gold-2);font-weight:600}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  padding:9px 14px;border-radius:999px;
  font-size:.9rem;font-weight:500;color:var(--ink-2);
  transition:background .22s,color .22s,transform .22s;
  white-space:nowrap;
}
.main-nav a:hover{background:var(--surface-2);color:#fff;transform:translateY(-1px)}
.main-nav a.active{background:rgba(245,158,11,.14);color:var(--gold-2);box-shadow:inset 0 0 0 1px var(--line)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-ghost{
  padding:9px 18px;border-radius:999px;font-size:.88rem;font-weight:600;
  color:var(--gold-2);border:1px solid var(--line);
  transition:background .22s,border-color .22s,color .22s,transform .22s;
}
.btn-ghost:hover{background:rgba(245,158,11,.12);border-color:var(--gold);color:#fff;transform:translateY(-1px)}
.btn-gold{
  padding:10px 20px;border-radius:999px;font-size:.88rem;font-weight:700;
  color:#08281A;background:linear-gradient(135deg,var(--gold-2),var(--gold));
  box-shadow:0 8px 20px rgba(245,158,11,.3);
  transition:transform .22s,box-shadow .22s,filter .22s;
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(245,158,11,.45);filter:brightness(1.05);color:#08281A}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--surface-2);border:1px solid var(--line);
  color:var(--gold-2);cursor:pointer;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:14px;border:1px solid transparent;
  font-weight:600;font-size:.95rem;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;
}
.btn-lg{padding:15px 30px;font-size:1rem}
.btn-block{width:100%;border:0}
.btn-outline{background:transparent;border:1px solid var(--line);color:var(--gold-2)}
.btn-outline:hover{background:rgba(245,158,11,.12);border-color:var(--gold);color:#fff;transform:translateY(-2px)}
main{display:block}
.section{padding:76px 0;position:relative}
.section-alt{background:var(--bg-800);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:780px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold-2);margin-bottom:14px;
}
.section-head p,.lead{color:var(--ink-2);font-size:1rem}
.lead-muted{color:var(--muted)}
h1,h2,h3,h4{letter-spacing:0;color:#fff}
h1{font-size:clamp(2rem,5vw,4.4rem);line-height:1.08;font-weight:800;margin:0 0 18px}
h2{font-size:clamp(1.65rem,3vw,2.6rem);line-height:1.18;font-weight:800;margin:0 0 14px}
h3{font-size:1.14rem;line-height:1.35;font-weight:700;margin:0 0 9px}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
.category-hero{
  position:relative;padding:128px 0 54px;overflow:hidden;
  background:linear-gradient(155deg,#04180F 0%,#0B2E1E 58%,#061E14 100%);
}
.category-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(245,158,11,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(245,158,11,.035) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(to bottom,black,transparent 86%);
}
.hero-photo{
  position:absolute;right:-4%;top:0;width:52%;height:100%;
  background:url('/assets/images/d8c8d296f4fa5a1f.jpg') center/cover no-repeat;
  opacity:.2;
  filter:saturate(.75) contrast(1.08);
}
.hero-photo::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,var(--bg-900) 0%,rgba(5,31,20,.55) 52%,rgba(5,31,20,.82) 100%);
}
.hero-shell{position:relative;z-index:2}
.hero-ticker{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;
  min-height:46px;padding:10px 18px;margin-bottom:34px;border-radius:12px;
  color:#073022;background:linear-gradient(90deg,#F0FDF4,#D1FAE5 62%,#FEF3C7);
  box-shadow:0 12px 32px rgba(0,0,0,.24);
}
.hero-ticker span{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;font-weight:700}
.hero-ticker i{color:#0F766E}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);gap:48px;align-items:end}
.hero-kicker{
  display:inline-flex;align-items:center;gap:9px;
  padding:8px 13px;border:1px solid var(--line);border-radius:999px;
  background:rgba(245,158,11,.08);color:var(--gold-2);
  font-size:.76rem;font-weight:700;letter-spacing:.11em;text-transform:uppercase;
  margin-bottom:18px;
}
.hero-lead{color:var(--ink-2);font-size:1.02rem;max-width:760px;line-height:1.68}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px}
.hero-points span{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;font-size:.83rem;font-weight:500;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);
}
.hero-points i{color:var(--gold-2)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-badges{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:26px;
  padding-top:22px;border-top:1px solid var(--line-soft);
}
.badge-soft,.badge-18{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 13px;border-radius:10px;font-size:.78rem;font-weight:600;
  background:var(--surface);border:1px solid var(--line-soft);color:var(--ink-2);
}
.badge-18{background:rgba(220,38,38,.16);border-color:rgba(220,38,38,.45);color:#FCA5A5}
.signal-panel{
  padding:24px;border-radius:20px;
  background:linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.025));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
}
.signal-head{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:18px}
.signal-head span{font-size:.74rem;text-transform:uppercase;letter-spacing:.12em;color:var(--gold-2);font-weight:700}
.live-dot{width:10px;height:10px;border-radius:50%;background:#22C55E;box-shadow:0 0 0 6px rgba(34,197,94,.12);animation:pulseLive 1.6s infinite}
@keyframes pulseLive{50%{box-shadow:0 0 0 12px rgba(34,197,94,0)}}
.signal-main{font-size:2.45rem;font-weight:800;color:#fff;line-height:1;margin:4px 0 8px}
.signal-main small{font-size:.95rem;color:var(--ink-2);font-weight:600}
.signal-bars{display:grid;gap:13px;margin-top:20px}
.signal-bar{display:grid;grid-template-columns:70px 1fr 42px;align-items:center;gap:10px;font-size:.78rem;color:var(--ink-2)}
.bar-track{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.bar-fill{height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--gold-dark),var(--gold-2))}
.metric-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.metric{padding:24px 22px;border-right:1px solid var(--line-soft)}
.metric:last-child{border-right:0}
.metric strong{display:block;color:var(--gold-2);font-size:2rem;line-height:1;margin-bottom:7px}
.metric span{font-size:.88rem;color:var(--ink-2)}
.matrix-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:stretch}
.matrix-list{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line)}
.matrix-item{padding:24px 22px;border-bottom:1px solid var(--line-soft);border-right:1px solid var(--line-soft)}
.matrix-item:nth-child(even){border-right:0}
.matrix-item .index{display:block;font-size:.78rem;font-weight:800;color:var(--gold-2);margin-bottom:9px;letter-spacing:.12em}
.matrix-item p{font-size:.9rem;color:var(--ink-2);margin:0}
.visual-block{position:relative;min-height:440px;border-radius:22px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.visual-block img{width:100%;height:100%;object-fit:cover}
.visual-block::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,31,20,.06),rgba(5,31,20,.9))}
.visual-note{position:absolute;left:22px;right:22px;bottom:22px;z-index:2;padding:18px;border-radius:14px;background:rgba(5,31,20,.84);border:1px solid var(--line);backdrop-filter:blur(12px)}
.visual-note strong{display:block;color:var(--gold-2);margin-bottom:5px}
.visual-note span{font-size:.86rem;color:var(--ink-2)}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-panel{padding:28px;border-radius:18px;border:1px solid var(--line-soft);background:var(--surface)}
.compare-panel.enter{border-color:rgba(245,158,11,.42);background:linear-gradient(145deg,rgba(245,158,11,.11),rgba(255,255,255,.025))}
.compare-panel.skip{border-color:rgba(220,38,38,.34);background:linear-gradient(145deg,rgba(220,38,38,.1),rgba(255,255,255,.025))}
.compare-label{display:inline-flex;align-items:center;gap:8px;font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;font-weight:800;margin-bottom:16px}
.enter .compare-label{color:var(--gold-2)}
.skip .compare-label{color:#FCA5A5}
.check-list{display:grid;gap:13px}
.check-list li{display:flex;gap:12px;color:var(--ink-2);font-size:.92rem}
.check-list i{margin-top:4px;color:var(--gold-2)}
.skip .check-list i{color:#F87171}
.milestone-track{display:grid;grid-template-columns:repeat(4,1fr);position:relative;gap:22px}
.milestone-track::before{content:"";position:absolute;top:24px;left:9%;right:9%;height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent)}
.milestone{position:relative;padding-top:58px;text-align:left}
.milestone::before{
  content:attr(data-step);position:absolute;top:0;left:0;
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  color:#08281A;background:linear-gradient(135deg,var(--gold-2),var(--gold));
  font-weight:800;border:5px solid var(--bg-800);
  box-shadow:0 8px 20px rgba(245,158,11,.25);
}
.milestone p{font-size:.89rem;color:var(--ink-2);margin:0}
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.channel-link{
  position:relative;padding:26px;border-radius:16px;overflow:hidden;
  border:1px solid var(--line);background:var(--surface);
  transition:transform .24s,border-color .24s,background .24s,box-shadow .24s;
}
.channel-link:hover{transform:translateY(-5px);border-color:var(--gold);background:rgba(245,158,11,.1);box-shadow:var(--shadow-sm)}
.channel-link i{font-size:1.25rem;color:var(--gold-2);margin-bottom:16px}
.channel-link span{display:block;color:#fff;font-weight:700;margin-bottom:7px}
.channel-link small{display:block;color:var(--ink-2);font-size:.84rem;line-height:1.55}
.channel-link::after{content:"\f061";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;right:22px;top:24px;color:var(--gold-2);opacity:.7;transition:transform .24s}
.channel-link:hover::after{transform:translateX(4px)}
.assurance-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.assurance{padding:24px 0;border-top:1px solid var(--line)}
.assurance-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  color:var(--gold-2);background:rgba(245,158,11,.1);border:1px solid var(--line);
  margin-bottom:16px;font-size:1.1rem;
}
.assurance p{font-size:.9rem;color:var(--ink-2);margin:0}
.quick-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:36px;align-items:start}
.quick-list{display:grid;gap:14px}
.quick-item{display:grid;grid-template-columns:54px 1fr;gap:16px;padding:18px;border-left:2px solid var(--gold);background:linear-gradient(90deg,rgba(245,158,11,.08),transparent)}
.quick-item strong{color:var(--gold-2);font-size:1.05rem}
.quick-item span{font-size:.9rem;color:var(--ink-2)}
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{border:1px solid var(--line-soft);border-radius:14px;background:var(--surface);overflow:hidden}
.faq-question{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:18px;
  padding:20px 22px;border:0;background:transparent;color:#fff;
  font-weight:700;text-align:left;cursor:pointer;
}
.faq-question i{color:var(--gold-2);transition:transform .25s;flex:0 0 auto}
.faq-item.open .faq-question i{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-answer p{padding:0 22px 20px;color:var(--ink-2);margin:0;font-size:.92rem}
.cta-section{
  background:
    radial-gradient(700px 300px at 14% 0%,rgba(245,158,11,.16),transparent 68%),
    linear-gradient(145deg,var(--bg-700),var(--bg-900));
}
.cta-grid{display:grid;grid-template-columns:1fr .9fr;gap:46px;align-items:center}
.cta-copy p{color:var(--ink-2)}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.cta-points span{display:inline-flex;align-items:center;gap:7px;font-size:.82rem;color:var(--ink-2)}
.cta-points i{color:var(--gold-2)}
.form-card{padding:28px;border-radius:20px;background:rgba(255,255,255,.055);border:1px solid var(--line);box-shadow:var(--shadow)}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:.84rem;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.form-control{
  width:100%;min-height:50px;padding:12px 14px;border-radius:12px;
  background:rgba(5,31,20,.62);border:1px solid var(--line-soft);color:#fff;
  transition:border-color .2s,box-shadow .2s;
}
.form-control::placeholder{color:#84968c}
.form-control:focus{outline:0;border-color:var(--gold);box-shadow:0 0 0 3px rgba(245,158,11,.14)}
.form-note{font-size:.78rem;color:var(--muted);margin:12px 0 0}
.form-status{display:none;margin-top:14px;padding:12px 14px;border-radius:12px;background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.35);color:#A7F3D0;font-size:.84rem}
.site-footer{background:#03150D;border-top:1px solid var(--line);padding:58px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr .8fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.site-footer p{color:var(--ink-2);font-size:.9rem;max-width:460px}
.footer-col h4{font-size:.86rem;text-transform:uppercase;letter-spacing:.1em;color:var(--gold-2);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:.88rem;color:var(--ink-2);transition:color .2s,transform .2s}
.footer-col a:hover{color:var(--gold-2)}
.resp-row{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:36px;padding:18px 0;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.resp-row span{font-size:.78rem;color:var(--muted)}
.footer-legal{display:flex;justify-content:space-between;gap:18px;padding-top:20px;color:var(--muted);font-size:.76rem}
.floating-support{
  position:fixed;left:16px;bottom:96px;z-index:50;
  width:58px;height:58px;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle at 32% 28%,#FEF3C7,#F59E0B 58%,#B45309);
  border:2px solid #FCD34D;color:#08281A;
  box-shadow:0 8px 28px rgba(245,158,11,.4);
  animation:floatChip 3s ease-in-out infinite;
  transition:transform .25s,opacity .25s,box-shadow .25s;
}
.floating-support:hover{transform:scale(1.1);box-shadow:0 10px 36px rgba(245,158,11,.58)}
.floating-support:active{transform:scale(.95) translateY(4px)}
.floating-support i{font-size:1.2rem;transition:transform .35s}
.floating-support:hover i{transform:rotate(360deg)}
.floating-support::after{
  content:"";position:absolute;top:2px;right:2px;width:13px;height:13px;
  border-radius:50%;background:#DC2626;border:2px solid #fff;
}
@keyframes floatChip{50%{transform:translateY(-5px)}}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}
@media (max-width:1100px){
  .main-nav{
    position:absolute;top:74px;left:20px;right:20px;
    display:grid;grid-template-columns:1fr;gap:4px;padding:12px;
    background:rgba(5,31,20,.98);border:1px solid var(--line);border-radius:16px;
    box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s,transform .22s,visibility .22s;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:none}
  .main-nav a{padding:12px 14px;border-radius:10px}
  .nav-toggle{display:grid;place-items:center}
  .hero-grid,.matrix-grid,.quick-grid,.cta-grid{grid-template-columns:1fr}
  .hero-photo{width:76%;opacity:.14}
  .visual-block{min-height:380px}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
}
@media (max-width:820px){
  .section{padding:62px 0}
  .category-hero{padding-top:118px}
  .metric-strip{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(-n+2){border-bottom:1px solid var(--line-soft)}
  .compare-grid,.assurance-grid,.channel-grid{grid-template-columns:1fr}
  .milestone-track{grid-template-columns:repeat(2,1fr)}
  .milestone-track::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-legal{flex-direction:column}
}
@media (max-width:620px){
  .container{padding:0 16px}
  .header-inner{gap:8px}
  .brand{gap:8px}
  .brand-mark{width:38px;height:38px;flex-basis:38px;border-radius:12px}
  .brand-text strong{font-size:.76rem;max-width:132px}
  .brand-text small{font-size:.58rem}
  .header-actions{gap:6px;margin-left:auto}
  .btn-ghost,.btn-gold{padding:8px 11px;font-size:.74rem}
  .nav-toggle{width:40px;height:40px;flex:0 0 40px}
  .hero-ticker{align-items:flex-start;flex-direction:column;gap:6px;padding:12px 14px}
  .hero-grid{gap:28px}
  .hero-points span{font-size:.79rem}
  .hero-cta .btn{width:100%}
  .matrix-list{grid-template-columns:1fr}
  .matrix-item,.matrix-item:nth-child(even){border-right:0}
  .milestone-track{grid-template-columns:1fr;gap:28px}
  .quick-item{grid-template-columns:44px 1fr;gap:12px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .resp-row{flex-direction:column}
  .form-card{padding:20px}
  .floating-support{left:12px;bottom:88px;width:54px;height:54px}
}
@media (max-width:430px){
  .brand-text small{display:none}
  .brand-text strong{max-width:112px;line-height:1.25}
  .btn-ghost{padding:7px 9px}
  .btn-gold{padding:8px 10px}
  .nav-toggle{display:none}
  h1{font-size:2rem}
  .signal-main{font-size:2rem}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;animation:none!important;transition:none!important}
}

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