/* roulang page: index */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a3a;
  --surface:rgba(15,27,56,.70);
  --surface-2:rgba(9,20,45,.92);
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(56,189,248,.45);
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --cyan:#38bdf8;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#64748b;
  --gold:#fbbf24;
  --green:#22c55e;
  --red:#ef4444;
  --r-sm:12px;
  --r:18px;
  --r-lg:26px;
  --shadow:0 22px 50px -26px rgba(2,8,23,.95);
  --glow:0 0 28px rgba(37,99,235,.45);
  --glow-cyan:0 0 30px rgba(56,189,248,.4);
  --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 620px at 10% -6%, rgba(37,99,235,.24), transparent 62%),
    radial-gradient(780px 540px at 92% 6%, rgba(56,189,248,.15), transparent 62%),
    radial-gradient(760px 620px at 50% 112%, rgba(29,78,216,.18), transparent 66%);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul{margin:0}
ul{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.shell{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.section{padding:76px 0;position:relative}
.section.tight{padding:56px 0}
.section.alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,0) 92%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid rgba(56,189,248,.28);
  padding:7px 15px;border-radius:999px;margin-bottom:18px;
}
.sec-head{max-width:780px;margin-bottom:40px}
.sec-title{
  font-size:clamp(23px,2.9vw,35px);
  font-weight:800;line-height:1.28;letter-spacing:-.02em;margin-bottom:14px;
}
.sec-title .hl{color:var(--cyan)}
.sec-desc{color:var(--muted);font-size:15.6px;line-height:1.7}
.text-glow{color:var(--cyan)}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16.5px;color:#fff;letter-spacing:-.01em;flex-shrink:0}
.brand:hover{color:#fff}
.brand-mark{
  width:40px;height:40px;border-radius:13px;flex-shrink:0;
  display:grid;place-items:center;font-size:17px;color:#fff;
  background:linear-gradient(135deg,#2563eb,#38bdf8);
  box-shadow:var(--glow);
}
.brand-text em{font-style:normal;color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  font-size:14.5px;font-weight:600;color:var(--muted);
  padding:9px 14px;border-radius:11px;white-space:nowrap;
  transition:background .22s ease,color .22s ease;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.09)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.32)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 18px;border-radius:12px;font-size:14px;font-weight:700;
  color:var(--text);border:1px solid rgba(148,163,184,.36);
  background:transparent;transition:.24s ease;white-space:nowrap;
}
.btn-line:hover{color:#fff;border-color:var(--cyan);background:rgba(56,189,248,.1)}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:13px;font-size:14.8px;font-weight:700;
  color:#fff;border:none;cursor:pointer;
  background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);
  box-shadow:0 0 26px rgba(37,99,235,.5);
  transition:transform .24s ease,box-shadow .24s ease,filter .24s ease;
  white-space:nowrap;
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(56,189,248,.68);color:#fff}
.btn-glow:active{transform:translateY(0) scale(.98)}
.btn-glow.sm{padding:10px 18px;font-size:13.6px;border-radius:11px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:13px;font-size:14.8px;font-weight:700;
  color:var(--text);border:1px solid rgba(56,189,248,.38);
  background:rgba(56,189,248,.06);transition:.24s ease;
}
.btn-ghost:hover{color:#fff;background:rgba(56,189,248,.14);border-color:var(--cyan)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(96,165,250,.28);background:rgba(11,26,58,.7);
  color:var(--text);font-size:17px;align-items:center;justify-content:center;
}

/* ============ HERO ============ */
.hero{position:relative;padding:64px 0 70px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/0d61e4631d0abf9d.jpg');
  background-size:cover;background-position:center;
  opacity:.34;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(3,7,18,.97) 0%,rgba(4,10,26,.86) 46%,rgba(8,18,41,.95) 100%);
}
.hero-inner{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.hero h1{
  font-size:clamp(27px,4.1vw,50px);
  font-weight:900;line-height:1.16;letter-spacing:-.03em;margin-bottom:20px;
}
.hero h1 .accent{
  background:linear-gradient(100deg,#38bdf8,#2563eb 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#cbd5e1;font-size:16.2px;line-height:1.72;max-width:620px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.point-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.2px;font-weight:600;color:#dbeafe;
  background:rgba(56,189,248,.09);border:1px solid rgba(56,189,248,.24);
  padding:8px 14px;border-radius:999px;
}
.point-chip i{color:var(--cyan);font-size:12.5px}

/* Before / After compare */
.compare{display:grid;gap:18px}
.compare-card{
  border-radius:var(--r);padding:24px 24px 26px;
  background:var(--surface);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
}
.compare-card.before{border-color:rgba(148,163,184,.22)}
.compare-card.after{
  border-color:rgba(56,189,248,.5);
  box-shadow:0 0 34px rgba(37,99,235,.28);
  background:linear-gradient(160deg,rgba(15,32,72,.86),rgba(6,14,34,.9));
}
.compare-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;
  padding:6px 13px;border-radius:999px;margin-bottom:16px;
}
.compare-card.before .compare-tag{color:#cbd5e1;background:rgba(148,163,184,.14);border:1px solid rgba(148,163,184,.28)}
.compare-card.after .compare-tag{color:#0b1220;background:linear-gradient(135deg,#38bdf8,#7dd3fc)}
.compare-title{font-size:17.5px;font-weight:800;margin-bottom:14px}
.compare-list li{
  display:flex;gap:11px;align-items:flex-start;
  font-size:14.4px;color:#cbd5e1;padding:7px 0;line-height:1.55;
}
.compare-list li i{margin-top:5px;font-size:12.5px;flex-shrink:0}
.compare-card.before .compare-list li i{color:#f87171}
.compare-card.after .compare-list li i{color:#4ade80}
.compare-metric{
  margin-top:16px;padding-top:16px;border-top:1px dashed rgba(148,163,184,.28);
  display:flex;align-items:baseline;gap:10px;
}
.compare-metric strong{font-size:26px;font-weight:900;letter-spacing:-.02em}
.compare-card.after .compare-metric strong{color:var(--cyan);text-shadow:0 0 24px rgba(56,189,248,.55)}
.compare-metric span{font-size:13px;color:var(--muted)}

/* ============ STAT BAR ============ */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden;
}
.stat-cell{background:rgba(8,18,41,.72);padding:26px 22px;text-align:left}
.stat-cell strong{display:block;font-size:29px;font-weight:900;letter-spacing:-.02em;color:var(--cyan);line-height:1.2}
.stat-cell span{display:block;font-size:13.4px;color:var(--muted);margin-top:6px}

/* ============ GENERIC CARD ============ */
.glass{
  background:var(--surface);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:var(--r);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.glass:hover{border-color:var(--line-strong);box-shadow:0 0 32px rgba(37,99,235,.24);transform:translateY(-3px)}
.card-pad{padding:26px 24px}
.card-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  font-size:19px;color:#fff;margin-bottom:18px;
  background:linear-gradient(135deg,rgba(37,99,235,.9),rgba(56,189,248,.9));
  box-shadow:0 0 22px rgba(37,99,235,.35);
}
.card-title{font-size:17.6px;font-weight:800;line-height:1.38;margin-bottom:11px}
.card-text{font-size:14.5px;color:var(--muted);line-height:1.68}
.tag{
  display:inline-block;font-size:11.4px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid rgba(56,189,248,.24);
  padding:5px 11px;border-radius:999px;
}

/* ============ CONCEPT BLOCK ============ */
.concept-lead{font-size:16.4px;color:#cbd5e1;max-width:860px;margin-bottom:38px;line-height:1.72}
.concept-item{padding:30px 0;border-top:1px solid var(--line)}
.concept-item:first-of-type{border-top:none;padding-top:0}
.concept-item h3{
  font-size:19.5px;font-weight:800;line-height:1.42;margin-bottom:13px;letter-spacing:-.01em;
}
.concept-item h3 .num{
  display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;
  font-size:13px;font-weight:800;color:#0b1220;margin-right:12px;vertical-align:middle;
  background:linear-gradient(135deg,#38bdf8,#2563eb);color:#fff;
}
.concept-item p{font-size:15.4px;color:var(--muted);line-height:1.72;max-width:920px}
.concept-aside{
  border-radius:var(--r);padding:28px 26px;
  background:linear-gradient(165deg,rgba(15,32,72,.85),rgba(6,14,34,.92));
  border:1px solid rgba(56,189,248,.32);
  box-shadow:var(--shadow);
}
.concept-aside h4{font-size:16.5px;font-weight:800;margin-bottom:16px}
.mini-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(148,163,184,.2)}
.mini-row:last-child{border-bottom:none;padding-bottom:0}
.mini-row i{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-size:14px;background:rgba(56,189,248,.12);color:var(--cyan);flex-shrink:0}
.mini-row strong{display:block;font-size:14px;font-weight:700}
.mini-row span{font-size:12.8px;color:var(--muted)}

/* ============ CARRIER ============ */
.carrier-card{position:relative;overflow:hidden;padding:28px 24px;height:100%}
.carrier-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:130px;height:130px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.24),transparent 70%);
}
.carrier-name{font-size:21px;font-weight:900;letter-spacing:-.01em;margin-bottom:6px}
.carrier-prefix{font-size:13px;color:var(--cyan);font-weight:700;margin-bottom:16px;letter-spacing:.06em}
.denom-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.denom{
  font-size:12.6px;font-weight:700;color:#dbeafe;
  background:rgba(37,99,235,.18);border:1px solid rgba(96,165,250,.28);
  padding:6px 12px;border-radius:9px;
}
.carrier-note{font-size:13.6px;color:var(--muted);line-height:1.66}

/* ============ HUB / CATEGORY ============ */
.hub-card{display:block;height:100%;padding:28px 26px;position:relative;overflow:hidden}
.hub-card .hub-index{
  font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--muted-2);margin-bottom:14px;text-transform:uppercase;
}
.hub-card h3{font-size:18.6px;font-weight:800;margin-bottom:12px;line-height:1.4}
.hub-card p{font-size:14.4px;color:var(--muted);line-height:1.66;margin-bottom:18px}
.hub-more{display:inline-flex;align-items:center;gap:9px;font-size:14px;font-weight:700;color:var(--cyan)}
.hub-more i{transition:transform .24s ease}
.hub-card:hover .hub-more i{transform:translateX(5px)}
.hub-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,#2563eb,#38bdf8);transition:width .34s ease;
}
.hub-card:hover::before{width:100%}

/* ============ GAME CARDS ============ */
.game-card{display:block;overflow:hidden;height:100%}
.game-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0b1a3a}
.game-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.game-card:hover .game-thumb img{transform:scale(1.07)}
.game-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,18,0) 40%,rgba(3,7,18,.88) 100%)}
.game-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:10.6px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  padding:5px 11px;border-radius:8px;
  background:linear-gradient(135deg,#ef4444,#f97316);color:#fff;
  box-shadow:0 6px 18px -6px rgba(239,68,68,.85);
}
.game-badge.cyan{background:linear-gradient(135deg,#2563eb,#38bdf8)}
.game-body{padding:18px 20px 22px}
.game-body h3{font-size:16.2px;font-weight:800;margin-bottom:7px}
.game-body p{font-size:13.6px;color:var(--muted);line-height:1.6;margin-bottom:12px}
.game-meta{display:flex;align-items:center;justify-content:space-between;font-size:12.6px;color:var(--muted-2)}
.game-meta .rate{color:var(--gold);font-weight:700}

/* ============ STEPS ============ */
.step-row{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step-card{position:relative;padding:26px 22px}
.step-num{
  font-size:13px;font-weight:900;letter-spacing:.2em;color:var(--cyan);
  margin-bottom:14px;text-transform:uppercase;
}
.step-card h3{font-size:16.6px;font-weight:800;margin-bottom:10px}
.step-card p{font-size:14.2px;color:var(--muted);line-height:1.66}
.step-card::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:42px;
  background:linear-gradient(90deg,#38bdf8,transparent);
}

/* ============ COMPARE TABLE ============ */
.cmp-wrap{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(8,18,41,.62)}
.cmp-row{display:grid;grid-template-columns:1.2fr 1fr 1fr;border-top:1px solid var(--line)}
.cmp-row:first-child{border-top:none;background:rgba(37,99,235,.14)}
.cmp-cell{padding:16px 20px;font-size:14.2px;color:#cbd5e1;border-left:1px solid var(--line);display:flex;align-items:center;gap:9px}
.cmp-cell:first-child{border-left:none;font-weight:600;color:var(--text)}
.cmp-head{font-size:12.6px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan)}
.cmp-cell i.good{color:#4ade80}
.cmp-cell i.bad{color:#f87171}

/* ============ SCENARIO ============ */
.scene-card{padding:26px 24px;height:100%}
.scene-card h3{font-size:16.8px;font-weight:800;margin-bottom:11px}
.scene-card ul li{
  font-size:14px;color:var(--muted);padding:6px 0 6px 20px;position:relative;line-height:1.6;
}
.scene-card ul li::before{
  content:"";position:absolute;left:0;top:14px;width:7px;height:7px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px rgba(56,189,248,.8);
}

/* ============ REWARD ============ */
.reward-card{
  padding:24px 22px;height:100%;
  background:linear-gradient(165deg,rgba(15,32,72,.85),rgba(6,14,34,.92));
  border:1px solid rgba(56,189,248,.3);
}
.reward-card h3{font-size:16.6px;font-weight:800;margin-bottom:9px}
.reward-card p{font-size:13.8px;color:var(--muted);line-height:1.62;margin-bottom:14px}
.reward-val{font-size:24px;font-weight:900;color:var(--gold);letter-spacing:-.02em}
.reward-val small{font-size:12.6px;font-weight:600;color:var(--muted);display:block;letter-spacing:0;margin-top:2px}

/* ============ DENOMINATION TIERS ============ */
.tier-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.tier{
  text-align:center;padding:24px 14px;border-radius:var(--r);
  background:rgba(11,26,58,.62);border:1px solid var(--line);
  transition:.26s ease;
}
.tier:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:0 0 28px rgba(37,99,235,.28)}
.tier strong{display:block;font-size:19px;font-weight:900;color:#fff;letter-spacing:-.01em}
.tier span{display:block;font-size:12.4px;color:var(--muted);margin-top:6px}
.tier .bonus{display:inline-block;margin-top:12px;font-size:11.6px;font-weight:800;color:#0b1220;background:linear-gradient(135deg,#fbbf24,#fde68a);padding:4px 10px;border-radius:999px}

/* ============ SOCIAL PROOF ============ */
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.proof-card{padding:30px 26px}
.proof-num{font-size:34px;font-weight:900;letter-spacing:-.03em;color:var(--cyan);line-height:1.1;margin-bottom:8px}
.proof-card p{font-size:14.4px;color:var(--muted);line-height:1.66}

/* ============ REVIEW ============ */
.review-card{padding:26px 24px;height:100%;display:flex;flex-direction:column}
.review-stars{color:var(--gold);font-size:13px;letter-spacing:2px;margin-bottom:14px}
.review-text{font-size:14.6px;color:#dbe3ef;line-height:1.72;flex:1;margin-bottom:18px}
.review-author{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#0b1220;
  background:linear-gradient(135deg,#38bdf8,#2563eb);color:#fff;
}
.review-author strong{display:block;font-size:14px;font-weight:700}
.review-author span{font-size:12.6px;color:var(--muted)}

/* ============ NEWS (CMS) ============ */
.news-card{display:block;height:100%;padding:24px 22px}
.news-card h3{font-size:16.4px;font-weight:800;line-height:1.46;margin:14px 0 10px}
.news-card p{font-size:14px;color:var(--muted);line-height:1.64;margin-bottom:16px}
.news-meta{font-size:12.6px;color:var(--muted-2);display:flex;align-items:center;gap:9px}
.news-meta i{font-size:11.5px}
.news-aside{padding:26px 24px;height:100%}
.news-aside h3{font-size:16.6px;font-weight:800;margin-bottom:18px}
.news-mini{display:block;padding:12px 0;border-bottom:1px dashed rgba(148,163,184,.2)}
.news-mini:last-child{border-bottom:none}
.news-mini strong{display:block;font-size:14.2px;font-weight:700;line-height:1.5;margin-bottom:5px}
.news-mini span{font-size:12.4px;color:var(--muted-2)}
.empty-note{
  padding:30px 24px;border:1px dashed rgba(148,163,184,.32);border-radius:var(--r);
  color:var(--muted);font-size:14.4px;text-align:center;
}

/* ============ TOPIC INDEX ============ */
.topic-wrap{display:flex;flex-wrap:wrap;gap:12px}
.topic-pill{
  display:inline-flex;align-items:center;gap:9px;font-size:13.6px;font-weight:600;
  color:#dbe3ef;padding:10px 18px;border-radius:999px;
  background:rgba(11,26,58,.66);border:1px solid var(--line);
  transition:.24s ease;
}
.topic-pill:hover{border-color:var(--line-strong);color:#fff;background:rgba(37,99,235,.2);transform:translateY(-2px)}
.topic-pill i{color:var(--cyan);font-size:12px}

/* ============ GUARANTEE ============ */
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.guarantee-item{display:flex;gap:14px;padding:22px;border-radius:var(--r);background:rgba(8,18,41,.6);border:1px solid var(--line)}
.guarantee-item i{
  width:44px;height:44px;border-radius:13px;flex-shrink:0;display:grid;place-items:center;
  font-size:17px;color:var(--cyan);background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.24);
}
.guarantee-item strong{display:block;font-size:15px;font-weight:700;margin-bottom:5px}
.guarantee-item span{font-size:13.2px;color:var(--muted);line-height:1.6}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:56px 46px;text-align:center;
  border:1px solid rgba(56,189,248,.34);
  background-image:linear-gradient(115deg,rgba(4,10,26,.94),rgba(12,30,68,.9)),url('/assets/images/c7fb6256141038b2.jpg');
  background-size:cover;background-position:center;
  box-shadow:0 0 60px -18px rgba(37,99,235,.6);
}
.cta-band h2{font-size:clamp(23px,3vw,34px);font-weight:900;line-height:1.26;letter-spacing:-.02em;margin-bottom:16px}
.cta-band p{max-width:720px;margin:0 auto 28px;color:#cbd5e1;font-size:15.6px;line-height:1.72}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:1030;
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;font-size:21px;color:#fff;
  background:rgba(7,10,24,.86);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:2px solid rgba(56,189,248,.72);
  box-shadow:0 0 22px rgba(56,189,248,.5);
  opacity:.85;transition:transform .26s ease,box-shadow .26s ease,opacity .26s ease;
  animation:fabPulse 3.4s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.1);box-shadow:0 0 34px rgba(56,189,248,.8);color:#fff}
.fab:active{transform:scale(.94)}
.fab-dot{
  position:absolute;top:2px;right:2px;width:13px;height:13px;border-radius:50%;
  background:#ef4444;box-shadow:0 0 0 2px rgba(7,10,24,.9);animation:dotBlink 1.6s ease-in-out infinite;
}
@keyframes fabPulse{0%,100%{box-shadow:0 0 22px rgba(56,189,248,.5)}50%{box-shadow:0 0 34px rgba(56,189,248,.85)}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.35}}

/* ============ FOOTER ============ */
.site-footer{
  margin-top:20px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(4,10,26,.7),rgba(2,5,14,.98));
  padding:64px 0 28px;
}
.foot-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16px;color:#fff;margin-bottom:16px}
.foot-text{font-size:14px;color:var(--muted);line-height:1.72;max-width:420px}
.foot-title{font-size:13px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin-bottom:18px}
.foot-links li{padding:6px 0}
.foot-links a{font-size:14.2px;color:var(--muted)}
.foot-links a:hover{color:var(--cyan)}
.foot-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.foot-badge{
  font-size:11.6px;font-weight:700;color:#cbd5e1;
  border:1px solid rgba(148,163,184,.28);border-radius:9px;padding:6px 12px;background:rgba(11,26,58,.5);
}
.foot-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--muted-2);
}
.age-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;font-size:11.6px;font-weight:900;
  border:1.5px solid rgba(239,68,68,.7);color:#f87171;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1199px){
  .tier-grid{grid-template-columns:repeat(3,1fr)}
  .step-row{grid-template-columns:repeat(2,1fr)}
  .guarantee-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .nav-links{
    position:fixed;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:16px 20px 24px;margin:0;
    background:rgba(4,9,24,.98);
    backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line);
    transform:translateY(-130%);opacity:0;pointer-events:none;
    transition:transform .3s ease,opacity .3s ease;
    max-height:calc(100vh - 74px);overflow-y:auto;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-link{padding:13px 16px;font-size:15px;border:1px solid transparent}
  .nav-link.active{border-color:rgba(56,189,248,.3)}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero{padding:48px 0 56px}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .proof-grid{grid-template-columns:1fr}
  .cta-band{padding:44px 26px}
  .section{padding:60px 0}
}
@media (max-width:768px){
  .cmp-row{grid-template-columns:1fr 1fr 1fr}
  .cmp-cell{padding:13px 12px;font-size:13px}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .guarantee-grid{grid-template-columns:1fr}
}
@media (max-width:575px){
  .shell{padding:0 16px}
  .brand-text{font-size:14.6px}
  .brand-text em{display:inline}
  .nav-actions{gap:7px;margin-left:auto}
  .btn-line{padding:9px 13px;font-size:13px}
  .btn-glow.sm{padding:9px 14px;font-size:13px}
  .nav-toggle{width:40px;height:40px}
  .step-row{grid-template-columns:1fr}
  .stat-bar{grid-template-columns:1fr}
  .cmp-row{grid-template-columns:1fr}
  .cmp-cell{border-left:none;border-top:1px solid rgba(96,165,250,.12);padding:12px 14px}
  .cmp-row:first-child .cmp-cell:first-child{display:none}
  .hero h1{font-size:26px}
  .hero-lead{font-size:15.2px}
  .section{padding:48px 0}
  .card-pad{padding:22px 18px}
  .cta-band{padding:36px 20px}
  .fab{left:12px;bottom:84px;width:52px;height:52px;font-size:19px}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a3a;
  --surface:rgba(15,27,56,.70);
  --surface-2:rgba(9,20,45,.92);
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(56,189,248,.45);
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --cyan:#38bdf8;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#64748b;
  --gold:#fbbf24;
  --green:#22c55e;
  --red:#ef4444;
  --r-sm:12px;
  --r:18px;
  --r-lg:26px;
  --shadow:0 22px 50px -26px rgba(2,8,23,.95);
  --glow:0 0 28px rgba(37,99,235,.45);
  --glow-cyan:0 0 30px rgba(56,189,248,.4);
  --max: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,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 620px at 10% -6%, rgba(37,99,235,.24), transparent 62%),
    radial-gradient(780px 540px at 92% 6%, rgba(56,189,248,.15), transparent 62%),
    radial-gradient(760px 620px at 50% 112%, rgba(29,78,216,.18), transparent 66%);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0 0 12px;font-weight:800;letter-spacing:-.02em;line-height:1.28}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}

.shell{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.section{padding:76px 0;position:relative}
.section.tight{padding:54px 0}
.section.alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,0) 94%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid rgba(56,189,248,.28);
  padding:7px 15px;border-radius:999px;margin-bottom:18px;
}
.sec-title{font-size:clamp(23px,2.9vw,35px);font-weight:800;line-height:1.28;margin-bottom:14px}
.sec-title .hl{color:var(--cyan)}
.sec-sub{color:var(--muted);max-width:760px;font-size:15.6px;line-height:1.72}
.hl{color:var(--cyan)}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16.5px;color:#fff;letter-spacing:-.01em;flex-shrink:0}
.brand:hover{color:#fff}
.brand-mark{
  width:40px;height:40px;border-radius:13px;flex-shrink:0;
  display:grid;place-items:center;font-size:17px;color:#fff;
  background:linear-gradient(135deg,#2563eb,#38bdf8);
  box-shadow:var(--glow);
}
.brand-text em{font-style:normal;color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  font-size:14.5px;font-weight:600;color:var(--muted);
  padding:9px 14px;border-radius:11px;white-space:nowrap;
  transition:background .22s ease,color .22s ease;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.09)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.32)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 18px;border-radius:12px;font-size:14px;font-weight:700;
  color:var(--text);border:1px solid rgba(148,163,184,.36);
  background:transparent;transition:.24s ease;white-space:nowrap;cursor:pointer;
}
.btn-line:hover{color:#fff;border-color:var(--cyan);background:rgba(56,189,248,.1)}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:13px;font-size:14.8px;font-weight:700;
  color:#fff;border:none;cursor:pointer;
  background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);
  box-shadow:0 0 26px rgba(37,99,235,.5);
  transition:transform .24s ease,box-shadow .24s ease,filter .24s ease;
  white-space:nowrap;
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(56,189,248,.68);color:#fff}
.btn-glow:active{transform:translateY(0) scale(.98)}
.btn-glow.sm{padding:10px 18px;font-size:13.6px;border-radius:11px}
.btn-glow.w-100{width:100%}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:13px;font-size:14.8px;font-weight:700;
  color:var(--text);border:1px solid rgba(56,189,248,.38);
  background:rgba(56,189,248,.06);transition:.24s ease;cursor:pointer;
}
.btn-ghost:hover{color:#fff;background:rgba(56,189,248,.14);border-color:var(--cyan)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(96,165,250,.28);background:rgba(11,26,58,.7);
  color:var(--text);font-size:17px;align-items:center;justify-content:center;
  cursor:pointer;transition:.22s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}

/* ============ HERO ============ */
.hero{position:relative;padding:62px 0 74px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/c7fb6256141038b2.jpg');
  background-size:cover;background-position:center;
  opacity:.32;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(3,7,18,.97) 0%,rgba(4,10,26,.88) 48%,rgba(8,18,41,.96) 100%);
}
.hero-inner{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:46px;align-items:center}
.hero h1{font-size:clamp(27px,4vw,49px);font-weight:900;line-height:1.16;letter-spacing:-.03em;margin-bottom:20px}
.hero h1 .accent{
  background:linear-gradient(100deg,#38bdf8,#2563eb 72%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#cbd5e1;font-size:16.2px;line-height:1.72;max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.point-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.2px;font-weight:600;color:#dbeafe;
  background:rgba(56,189,248,.09);border:1px solid rgba(56,189,248,.24);
  padding:8px 14px;border-radius:999px;
}
.point-chip i{color:var(--cyan);font-size:12.5px}

.glass{
  background:var(--surface);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:var(--r);
  box-shadow:var(--shadow);
}
.hero-panel{padding:24px 24px 26px;position:relative;overflow:hidden}
.hero-panel::before{
  content:"";position:absolute;inset:0 auto auto 0;width:100%;height:3px;
  background:linear-gradient(90deg,#2563eb,#38bdf8,transparent);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.panel-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;
  letter-spacing:.06em;text-transform:uppercase;color:#fff;
  background:rgba(37,99,235,.28);border:1px solid rgba(56,189,248,.4);
  padding:7px 14px;border-radius:999px;
}
.panel-live{display:inline-flex;align-items:center;gap:7px;font-size:12.4px;color:var(--green);font-weight:700}
.panel-live .dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 10px rgba(34,197,94,.9);animation:blip 1.8s infinite}
@keyframes blip{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}
.sms-preview{
  border:1px dashed rgba(56,189,248,.45);
  background:rgba(2,8,23,.6);
  border-radius:var(--r-sm);padding:16px 18px;margin-bottom:18px;
}
.sms-label{display:block;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);font-weight:700;margin-bottom:6px}
.sms-text{
  font-family:'SFMono-Regular',Consolas,'Courier New',monospace;
  font-size:19px;font-weight:800;color:#7dd3fc;letter-spacing:.02em;margin:0;
}
.panel-rows{display:grid;gap:1px;background:rgba(96,165,250,.14);border-radius:var(--r-sm);overflow:hidden;margin-bottom:20px}
.panel-rows li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:rgba(9,20,45,.86);padding:13px 16px;font-size:14.2px;color:var(--muted);
}
.panel-rows li b{color:#fff;font-weight:800;font-size:14.6px}
.panel-rows li b.green{color:var(--green)}
.panel-note{font-size:12.6px;color:var(--muted-2);margin:12px 0 0;line-height:1.6}

/* ============ FEATURE CARDS ============ */
.feature-card{
  height:100%;padding:26px 24px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.feature-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 20px 44px -24px rgba(37,99,235,.8)}
.fc-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  font-size:19px;color:#fff;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(37,99,235,.9),rgba(56,189,248,.85));
  box-shadow:0 0 20px rgba(37,99,235,.45);
}
.feature-card h3{font-size:17.6px;margin-bottom:9px}
.feature-card p{color:var(--muted);font-size:14.6px;line-height:1.7;margin:0}
.media-frame{
  border-radius:var(--r);overflow:hidden;border:1px solid var(--line);
  position:relative;background:var(--surface-2);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame figcaption{
  position:absolute;inset:auto 0 0 0;
  padding:16px 18px;font-size:13.4px;color:#e2e8f0;
  background:linear-gradient(180deg,transparent,rgba(3,7,18,.94));
}

/* ============ STAT STRIP ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden;
}
.stat-item{background:var(--surface-2);padding:24px 20px;text-align:left}
.stat-item b{
  display:block;font-size:clamp(24px,3vw,34px);font-weight:900;line-height:1.1;
  background:linear-gradient(100deg,#38bdf8,#2563eb);
  -webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px;
}
.stat-item span{font-size:13.4px;color:var(--muted);line-height:1.55;display:block}

/* ============ TABLE ============ */
.table-wrap{border-radius:var(--r);border:1px solid var(--line);overflow:hidden;background:var(--surface-2)}
.table-scroll{overflow-x:auto}
.tsms{width:100%;border-collapse:collapse;min-width:660px}
.tsms thead th{
  background:rgba(37,99,235,.2);
  font-size:12.2px;letter-spacing:.09em;text-transform:uppercase;
  color:#dbeafe;font-weight:800;padding:15px 18px;text-align:left;
  border-bottom:1px solid var(--line-strong);white-space:nowrap;
}
.tsms tbody td{padding:15px 18px;border-bottom:1px solid rgba(96,165,250,.12);font-size:14.5px;color:#cbd5e1;vertical-align:middle}
.tsms tbody tr:hover{background:rgba(56,189,248,.06)}
.tsms tbody tr:last-child td{border-bottom:none}
.code-cell{font-family:'SFMono-Regular',Consolas,monospace;color:#7dd3fc;font-weight:800;font-size:14.4px;white-space:nowrap}
.mg-cell{font-weight:800;color:#fff;white-space:nowrap}
.tag-time{
  display:inline-block;font-size:12.4px;font-weight:700;color:#bbf7d0;
  background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.32);
  padding:4px 11px;border-radius:999px;white-space:nowrap;
}
.table-note{font-size:13px;color:var(--muted-2);margin:14px 0 0;line-height:1.65}

/* ============ STEPS ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{
  position:relative;padding:26px 22px 24px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .26s ease,transform .26s ease;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:'SFMono-Regular',Consolas,monospace;
  font-size:26px;font-weight:800;color:rgba(56,189,248,.35);display:block;margin-bottom:10px;
}
.step h3{font-size:16.6px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14.3px;line-height:1.68;margin:0}

/* ============ SCENES ============ */
.scene-card{
  height:100%;border-radius:var(--r);overflow:hidden;
  background:var(--surface-2);border:1px solid var(--line);
  display:flex;flex-direction:column;
  transition:transform .28s ease,border-color .28s ease;
}
.scene-card:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.scene-card img{width:100%;height:170px;object-fit:cover}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.scene-body h3{font-size:17px;margin-bottom:9px}
.scene-body p{color:var(--muted);font-size:14.4px;line-height:1.7;margin:0 0 14px}
.scene-body .mini-list{margin-top:auto;display:grid;gap:8px}
.mini-list li{display:flex;gap:9px;align-items:flex-start;font-size:13.8px;color:#cbd5e1;line-height:1.6}
.mini-list i{color:var(--cyan);font-size:11px;margin-top:6px;flex-shrink:0}

/* ============ SUPPORT / SAFE ============ */
.safe-card{
  height:100%;padding:26px 24px;border-radius:var(--r);
  background:rgba(9,20,45,.86);border:1px solid var(--line);
}
.safe-card h3{font-size:17.4px;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.safe-card h3 i{color:var(--cyan);font-size:16px}
.safe-list{display:grid;gap:12px}
.safe-list li{display:flex;gap:11px;font-size:14.4px;color:#cbd5e1;line-height:1.68}
.safe-list li i{color:var(--green);font-size:14px;margin-top:4px;flex-shrink:0}
.safe-list li strong{color:#fff;font-weight:700}

/* ============ QUOTES ============ */
.quote-card{
  height:100%;padding:24px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--line);
}
.quote-card .stars{color:var(--gold);font-size:13px;letter-spacing:2px;margin-bottom:12px}
.quote-card p{color:#dbe3ef;font-size:14.6px;line-height:1.72;margin:0 0 16px}
.quote-meta{display:flex;align-items:center;gap:11px;font-size:13.4px;color:var(--muted)}
.avatar{
  width:36px;height:36px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;
  font-weight:800;font-size:14px;color:#fff;
  background:linear-gradient(135deg,#2563eb,#38bdf8);
}
.quote-meta b{color:#fff;font-weight:700}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  border-radius:var(--r);border:1px solid var(--line);
  background:var(--surface-2);overflow:hidden;transition:border-color .25s ease;
}
.faq-item[open]{border-color:var(--line-strong)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:15.6px;font-weight:700;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--cyan);transition:transform .28s ease;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 22px 20px;color:var(--muted);font-size:14.6px;line-height:1.74}

/* ============ CTA BAND ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(125deg,rgba(37,99,235,.28),rgba(3,7,18,.92) 58%,rgba(56,189,248,.16));
  padding:44px 40px;
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.35),transparent 68%);
}
.cta-band h2{font-size:clamp(22px,2.9vw,32px);margin-bottom:12px;position:relative}
.cta-band p{color:#cbd5e1;max-width:680px;font-size:15.4px;line-height:1.72;position:relative;margin-bottom:24px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative}
.cta-side{
  border-radius:var(--r);border:1px solid var(--line);
  background:rgba(2,8,23,.6);padding:22px;
}
.cta-side ul{display:grid;gap:12px}
.cta-side li{display:flex;gap:10px;font-size:14px;color:#cbd5e1;line-height:1.65}
.cta-side i{color:var(--cyan);margin-top:4px;flex-shrink:0;font-size:13px}

/* ============ FAB ============ */
.fab-lite{
  position:fixed;left:16px;bottom:96px;z-index:1050;
  width:58px;height:58px;min-width:58px;border-radius:999px;
  display:grid;place-items:center;color:#fff;font-size:20px;
  border:1.6px solid transparent;
  background-image:linear-gradient(rgba(7,12,26,.92),rgba(7,12,26,.92)),linear-gradient(135deg,#38bdf8,#2563eb);
  background-origin:border-box;background-clip:padding-box,border-box;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 0 22px rgba(56,189,248,.45);
  opacity:.8;transition:transform .25s ease,box-shadow .25s ease,opacity .25s ease;
}
.fab-lite:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 36px rgba(56,189,248,.72);color:#fff}
.fab-lite:active{transform:scale(.94)}
.fab-dot{
  position:absolute;top:3px;right:3px;width:12px;height:12px;border-radius:50%;
  background:var(--red);box-shadow:0 0 0 2px rgba(3,7,18,.94);animation:blip 1.6s infinite;
}

/* ============ FOOTER ============ */
.site-footer{
  margin-top:20px;padding:62px 0 26px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,18,41,.7),rgba(3,7,18,.98));
}
.foot-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:17px;color:#fff;margin-bottom:14px}
.foot-brand em{font-style:normal;color:var(--cyan)}
.foot-text{color:var(--muted);font-size:14.2px;line-height:1.72;max-width:420px}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.foot-badge{
  font-size:12.2px;font-weight:700;color:#cbd5e1;
  border:1px solid var(--line);background:rgba(56,189,248,.07);
  padding:6px 12px;border-radius:999px;
}
.foot-title{font-size:14px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:#e2e8f0;margin-bottom:16px}
.foot-links{display:grid;gap:11px}
.foot-links a{font-size:14.2px;color:var(--muted);line-height:1.55}
.foot-links a:hover{color:var(--cyan)}
.foot-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13.2px;color:var(--muted-2);
}
.age-badge{
  font-size:12.6px;font-weight:800;color:#fff;
  border:1px solid rgba(239,68,68,.5);background:rgba(239,68,68,.14);
  padding:5px 12px;border-radius:999px;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .nav-wrap{gap:14px;min-height:68px}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-actions{margin-left:0}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(3,7,18,.98);
    border-bottom:1px solid var(--line);
    padding:14px 20px 20px;
    display:none;
  }
  .nav-links.open{display:flex}
  .nav-link{padding:12px 14px;font-size:15px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero{padding:48px 0 58px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .section{padding:62px 0}
}
@media (max-width:768px){
  .brand-text{font-size:15px}
  .section{padding:54px 0}
  .cta-band{padding:32px 24px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .shell{padding:0 16px}
  .brand{font-size:14.4px;gap:9px}
  .brand-mark{width:36px;height:36px;font-size:15px;border-radius:11px}
  .brand-text em{display:none}
  .btn-line{padding:8px 12px;font-size:12.6px;border-radius:10px}
  .btn-glow.sm{padding:8px 13px;font-size:12.6px;border-radius:10px}
  .nav-toggle{width:40px;height:40px;font-size:15px}
  .steps{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .hero h1{font-size:26px}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%}
  .fab-lite{width:54px;height:54px;min-width:54px;bottom:84px;left:12px}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a3a;
  --surface:rgba(15,27,56,.70);
  --surface-2:rgba(9,20,45,.92);
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(56,189,248,.45);
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --cyan:#38bdf8;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#64748b;
  --gold:#fbbf24;
  --green:#22c55e;
  --red:#ef4444;
  --r-sm:12px;
  --r:18px;
  --r-lg:26px;
  --shadow:0 22px 50px -26px rgba(2,8,23,.95);
  --glow:0 0 28px rgba(37,99,235,.45);
  --glow-cyan:0 0 30px rgba(56,189,248,.4);
  --max: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,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(900px 620px at 10% -6%, rgba(37,99,235,.24), transparent 62%),
    radial-gradient(780px 540px at 92% 6%, rgba(56,189,248,.15), transparent 62%),
    radial-gradient(760px 620px at 50% 112%, rgba(29,78,216,.18), transparent 66%);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0 0 1.05em}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:rgba(56,189,248,.35);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}

.shell{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.section{padding:74px 0;position:relative}
.section.tight{padding:54px 0}
.section.alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,0) 92%)}
.sec-head{max-width:740px;margin-bottom:34px}
.sec-head h2{font-size:clamp(22px,2.8vw,33px);margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:15.4px;margin:0}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-split{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:end;margin-bottom:34px}
.sec-split .side-note{font-size:14.4px;color:var(--muted);border-left:2px solid var(--line-strong);padding-left:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid rgba(56,189,248,.28);
  padding:7px 15px;border-radius:999px;margin-bottom:16px;
}
.text-glow{color:var(--cyan)}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16.5px;color:#fff;letter-spacing:-.01em;flex-shrink:0}
.brand:hover{color:#fff}
.brand-mark{
  width:40px;height:40px;border-radius:13px;flex-shrink:0;
  display:grid;place-items:center;font-size:17px;color:#fff;
  background:linear-gradient(135deg,#2563eb,#38bdf8);
  box-shadow:var(--glow);
}
.brand-text em{font-style:normal;color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  font-size:14.5px;font-weight:600;color:var(--muted);
  padding:9px 14px;border-radius:11px;white-space:nowrap;
  transition:background .22s ease,color .22s ease;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.09)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.32)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 18px;border-radius:12px;font-size:14px;font-weight:700;
  color:var(--text);border:1px solid rgba(148,163,184,.36);
  background:transparent;transition:.24s ease;white-space:nowrap;
}
.btn-line:hover{color:#fff;border-color:var(--cyan);background:rgba(56,189,248,.1)}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:13px;font-size:14.8px;font-weight:700;
  color:#fff;border:none;cursor:pointer;
  background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);
  box-shadow:0 0 26px rgba(37,99,235,.5);
  transition:transform .24s ease,box-shadow .24s ease,filter .24s ease;
  white-space:nowrap;
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(56,189,248,.68);color:#fff}
.btn-glow:active{transform:translateY(0) scale(.98)}
.btn-glow.sm{padding:10px 18px;font-size:13.6px;border-radius:11px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:13px;font-size:14.8px;font-weight:700;
  color:var(--text);border:1px solid rgba(56,189,248,.38);
  background:rgba(56,189,248,.06);transition:.24s ease;
}
.btn-ghost:hover{color:#fff;background:rgba(56,189,248,.14);border-color:var(--cyan)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(96,165,250,.28);background:rgba(11,26,58,.7);
  color:var(--text);font-size:17px;align-items:center;justify-content:center;
}

/* ============ ARTICLE HERO ============ */
.art-hero{position:relative;padding:44px 0 62px;overflow:hidden;border-bottom:1px solid var(--line)}
.art-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/c7fb6256141038b2.jpg');
  background-size:cover;background-position:center;opacity:.30;
}
.art-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(116deg,rgba(3,7,18,.97) 0%,rgba(4,10,26,.87) 48%,rgba(8,18,41,.96) 100%);
}
.art-hero-inner{position:relative;z-index:2;max-width:940px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.2px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:#cbd5e1}
.crumb-sep{color:var(--muted-2)}
.crumb-current{color:var(--cyan);font-weight:600}
.art-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:#bfdbfe;background:rgba(37,99,235,.2);
  border:1px solid rgba(56,189,248,.34);
  padding:7px 14px;border-radius:999px;
}
.art-title{
  font-size:clamp(26px,3.7vw,44px);
  font-weight:900;line-height:1.16;letter-spacing:-.03em;
  margin:18px 0 20px;
}
.art-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:13.4px;color:var(--muted)}
.art-meta span{display:inline-flex;align-items:center}
.art-meta i{color:var(--cyan);margin-right:7px;font-size:12.6px}
.art-lead{font-size:16.4px;color:#cbd5e1;line-height:1.76;max-width:790px;margin:22px 0 0}
.art-cover-wrap{position:relative;z-index:3;margin-top:-40px}
.art-cover{
  margin:0;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  background:var(--surface-2);
}
.art-cover img{width:100%;aspect-ratio:16/8;object-fit:cover}
.art-cover figcaption{
  padding:14px 22px;font-size:13.2px;color:var(--muted);
  border-top:1px solid var(--line);
}

/* ============ FACTS ============ */
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px}
.fact{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r);padding:20px 22px;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.fact-num{
  display:block;font-size:25px;font-weight:900;letter-spacing:-.02em;
  background:linear-gradient(100deg,#38bdf8,#2563eb);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:4px;
}
.fact-label{font-size:13px;color:var(--muted);line-height:1.5}

/* ============ ARTICLE BODY ============ */
.art-body-wrap{max-width:940px}
.prose{font-size:16.4px;line-height:1.78;color:#dbe3f0}
.prose > *:first-child{margin-top:0}
.prose h2{font-size:clamp(21px,2.4vw,29px);margin:40px 0 14px;color:#fff}
.prose h3{font-size:18.6px;margin:30px 0 12px;color:#e8eefb}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 20px}
.prose ul li{position:relative;padding-left:26px;margin-bottom:10px}
.prose ul li::before{
  content:"";position:absolute;left:4px;top:11px;width:8px;height:8px;border-radius:2px;
  background:linear-gradient(135deg,#2563eb,#38bdf8);
}
.prose ol{counter-reset:proseNum}
.prose ol li{position:relative;padding-left:36px;margin-bottom:12px;counter-increment:proseNum}
.prose ol li::before{
  content:counter(proseNum);position:absolute;left:0;top:1px;
  width:24px;height:24px;border-radius:8px;display:grid;place-items:center;
  font-size:12px;font-weight:700;color:#bfdbfe;
  background:rgba(37,99,235,.28);border:1px solid var(--line-strong);
}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.prose strong{color:#fff;font-weight:700}
.prose img{border-radius:var(--r);border:1px solid var(--line);margin:24px 0}
.prose blockquote{
  margin:26px 0;padding:18px 24px;
  border-left:3px solid var(--cyan);
  background:rgba(56,189,248,.07);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#cbd5e1;
}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14.6px;display:block;overflow-x:auto}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.prose th{background:rgba(37,99,235,.2);color:#e2e8f0;font-weight:700;white-space:nowrap}
.prose td{color:#c3cede}
.art-empty{
  border:1px dashed var(--line-strong);border-radius:var(--r);
  padding:38px 30px;background:var(--surface);text-align:left;
}
.art-empty h2{font-size:22px;margin-bottom:10px}
.art-empty p{color:var(--muted);margin-bottom:20px}

/* ============ TABLE ============ */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r);
  overflow-x:auto;background:var(--surface);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.carrier-table{width:100%;border-collapse:collapse;min-width:660px}
.carrier-table th{
  padding:16px 18px;font-size:12.4px;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;color:#bfdbfe;
  background:rgba(37,99,235,.24);text-align:left;white-space:nowrap;
}
.carrier-table td{padding:17px 18px;border-top:1px solid var(--line);font-size:14.6px;color:#c3cede;vertical-align:top}
.carrier-table tr:hover td{background:rgba(56,189,248,.05)}
.carrier-table td strong{color:#fff;display:block;margin-bottom:2px}
.syntax{
  display:inline-block;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13.4px;color:#7dd3fc;background:rgba(56,189,248,.1);
  border:1px solid rgba(56,189,248,.26);padding:5px 11px;border-radius:8px;
  margin:3px 4px 3px 0;
}
.table-note{margin-top:14px;font-size:13.4px;color:var(--muted-2)}

/* ============ VALUE CARDS ============ */
.value-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(248px,1fr));gap:20px}
.value-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:26px 24px;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.value-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow)}
.value-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  font-size:19px;color:#fff;margin-bottom:16px;
  background:linear-gradient(135deg,#2563eb,#38bdf8);box-shadow:var(--glow);
}
.value-card h3{font-size:17.4px;margin-bottom:10px}
.value-card p{font-size:14.6px;color:var(--muted);margin:0;line-height:1.68}

/* ============ STEPS ============ */
.steps-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.steps{display:flex;flex-direction:column;gap:16px}
.step{
  display:grid;grid-template-columns:52px 1fr;gap:18px;
  padding:22px 24px;border-radius:var(--r);
  background:var(--surface-2);border:1px solid var(--line);
  transition:border-color .26s ease,transform .26s ease;
}
.step:hover{border-color:var(--line-strong);transform:translateX(4px)}
.step-num{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  font-size:16px;font-weight:900;color:#fff;
  background:linear-gradient(135deg,rgba(37,99,235,.9),rgba(56,189,248,.85));
  box-shadow:var(--glow);
}
.step h3{font-size:16.6px;margin-bottom:6px}
.step p{font-size:14.4px;color:var(--muted);margin:0}
.steps-visual{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;
}
.steps-visual img{width:100%;aspect-ratio:4/3.4;object-fit:cover}
.steps-visual figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:18px 22px;
  background:linear-gradient(180deg,rgba(3,7,18,0),rgba(3,7,18,.94));
  font-size:13.6px;color:#cbd5e1;
}

/* ============ CHECKLIST ============ */
.check-panel{
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(140deg,rgba(15,27,56,.82),rgba(9,20,45,.62));
  padding:32px 30px;
}
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 28px}
.check-list li{display:grid;grid-template-columns:24px 1fr;gap:12px;font-size:14.8px;color:#cbd5e1}
.check-list i{color:var(--cyan);font-size:15px;margin-top:4px}
.check-list strong{color:#fff;display:block;margin-bottom:2px;font-weight:700}

/* ============ CATEGORY MATRIX ============ */
.cat-matrix{display:grid;grid-template-columns:repeat(auto-fit,minmax(276px,1fr));gap:20px}
.cat-card{
  position:relative;display:block;overflow:hidden;
  padding:28px 26px 26px;border-radius:var(--r);
  border:1px solid var(--line);
  background:linear-gradient(145deg,rgba(15,27,56,.86),rgba(9,20,45,.58));
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.cat-card::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:210px;height:210px;
  background:radial-gradient(circle,rgba(56,189,248,.24),transparent 70%);
  pointer-events:none;
}
.cat-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--glow);color:inherit}
.cat-tag{
  display:inline-block;font-size:11.4px;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--cyan);margin-bottom:14px;
}
.cat-card h3{font-size:18.4px;margin-bottom:10px}
.cat-card p{font-size:14.4px;color:var(--muted);margin:0 0 18px}
.cat-more{font-size:13.8px;font-weight:700;color:#bfdbfe;display:inline-flex;align-items:center;gap:8px}

/* ============ POST LIST ============ */
.post-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));gap:20px}
.post-card{
  display:flex;flex-direction:column;gap:12px;
  padding:26px 24px;border-radius:var(--r);
  border:1px solid var(--line);background:var(--surface);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);color:inherit}
.post-tag{
  font-size:11.4px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--cyan);
}
.post-card h3{font-size:17px;line-height:1.4}
.post-card p{font-size:14.2px;color:var(--muted);margin:0;line-height:1.65}
.post-more{
  margin-top:auto;font-size:13.6px;font-weight:700;color:#bfdbfe;
  display:inline-flex;align-items:center;gap:8px;
}
.post-card:hover .post-more i{transform:translateX(4px)}
.post-more i{transition:transform .26s ease}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:44px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r);
  background:var(--surface);overflow:hidden;
  transition:border-color .26s ease,background .26s ease;
}
.faq-item.open{border-color:var(--line-strong);background:var(--surface-2)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;gap:18px;align-items:flex-start;
  padding:20px 22px;font-size:15.6px;font-weight:700;text-align:left;color:#e8eefb;
}
.faq-q:hover{color:#fff}
.faq-q i{color:var(--cyan);transition:transform .3s ease;flex-shrink:0;margin-top:5px;font-size:13px}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .36s ease,padding .36s ease;padding:0 22px}
.faq-item.open .faq-a{max-height:460px;padding:0 22px 22px}
.faq-a p{margin:0;font-size:14.6px;color:#b6c2d4;line-height:1.75}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line-strong);border-radius:var(--r-lg);
  padding:46px 44px;
  background:linear-gradient(122deg,rgba(37,99,235,.30),rgba(8,18,41,.92) 72%);
  display:grid;grid-template-columns:1.35fr .65fr;gap:34px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;top:-120px;right:-80px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(56,189,248,.24),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(21px,2.6vw,31px);margin-bottom:12px;position:relative;z-index:2}
.cta-band p{color:#cbd5e1;font-size:15.2px;margin:0;position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;justify-content:flex-end}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 21px;border-radius:999px;min-height:52px;
  font-size:13.6px;font-weight:700;color:#e2e8f0;
  background:
    linear-gradient(rgba(7,15,32,.86),rgba(7,15,32,.86)) padding-box,
    linear-gradient(135deg,#38bdf8,#2563eb) border-box;
  border:1px solid transparent;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 0 20px rgba(6,182,212,.42);
  opacity:.86;transition:opacity .26s ease,transform .26s ease,box-shadow .26s ease;
}
.fab:hover{opacity:1;color:#fff;transform:translateY(-3px);box-shadow:0 0 32px rgba(56,189,248,.7)}
.fab:active{transform:scale(.96)}
.fab i{color:#7dd3fc;font-size:15px}
.fab-dot{
  position:absolute;top:9px;right:11px;width:9px;height:9px;border-radius:50%;
  background:#ef4444;box-shadow:0 0 10px #ef4444;animation:fabPulse 1.6s infinite;
}
@keyframes fabPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}

/* ============ FOOTER ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,18,41,.7),rgba(3,7,18,.98));
  padding:64px 0 28px;margin-top:20px;
}
.foot-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:17px;color:#fff;margin-bottom:16px}
.foot-brand em{font-style:normal;color:var(--cyan)}
.foot-text{font-size:14.2px;color:var(--muted);line-height:1.72;margin:0 0 18px}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px}
.foot-badge{
  font-size:11.8px;font-weight:700;color:#bfdbfe;
  border:1px solid rgba(96,165,250,.28);background:rgba(56,189,248,.08);
  padding:6px 12px;border-radius:999px;
}
.foot-title{font-size:14.6px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:-.01em}
.foot-links li{margin-bottom:9px}
.foot-links a{font-size:14px;color:var(--muted)}
.foot-links a:hover{color:var(--cyan)}
.foot-bottom{
  margin-top:42px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13.2px;color:var(--muted-2);
}
.age-badge{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:42px;padding:5px 12px;border-radius:999px;
  font-size:12.4px;font-weight:800;color:#fca5a5;
  border:1px solid rgba(239,68,68,.42);background:rgba(239,68,68,.12);
}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
  .sec-split{grid-template-columns:1fr;gap:18px;align-items:start}
  .steps-layout{grid-template-columns:1fr;gap:32px}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .facts{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1024px){
  .nav-wrap{flex-wrap:wrap;justify-content:space-between;gap:14px;padding-top:10px;padding-bottom:10px}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;margin-left:0;
    padding:0 20px;max-height:0;overflow:hidden;opacity:0;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);
    transition:max-height .3s ease,opacity .3s ease,padding .3s ease;
  }
  .nav-links.open{max-height:340px;opacity:1;padding:14px 20px 22px}
  .nav-link{padding:12px 14px;font-size:15px}
  .nav-actions{margin-left:auto}
  .nav-toggle{display:inline-flex}
}
@media (max-width:900px){
  .cta-band{grid-template-columns:1fr;padding:36px 28px;text-align:left}
  .cta-actions{justify-content:flex-start}
  .art-cover img{aspect-ratio:16/10}
}
@media (max-width:768px){
  .section{padding:58px 0}
  .section.tight{padding:44px 0}
  .art-hero{padding:32px 0 52px}
  .art-meta{gap:14px}
  .check-list{grid-template-columns:1fr}
  .check-panel{padding:24px 22px}
  .value-grid,.cat-matrix,.post-grid{gap:16px}
  .art-cover-wrap{margin-top:-28px}
}
@media (max-width:520px){
  body{font-size:15.4px}
  .shell{padding:0 16px}
  .brand{font-size:14.6px}
  .brand-mark{width:36px;height:36px;font-size:15px;border-radius:11px}
  .nav-actions{gap:8px}
  .btn-line{padding:9px 12px;font-size:12.6px;border-radius:10px}
  .btn-glow.sm{padding:9px 13px;font-size:12.6px;border-radius:10px}
  .btn-glow.sm i{display:none}
  .facts{grid-template-columns:1fr;gap:12px}
  .art-title{font-size:24px}
  .art-lead{font-size:15.2px}
  .hero-actions,.cta-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-glow,.cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%}
  .step{grid-template-columns:1fr;gap:12px;padding:20px}
  .step-num{width:44px;height:44px;border-radius:13px;font-size:14.6px}
  .faq-q{padding:17px 18px;font-size:14.8px}
  .faq-item.open .faq-a{padding:0 18px 18px}
  .fab{padding:13px 17px;bottom:88px;font-size:12.6px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a3a;
  --surface:rgba(15,27,56,.70);
  --surface-2:rgba(9,20,45,.92);
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(56,189,248,.45);
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --cyan:#38bdf8;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#64748b;
  --gold:#fbbf24;
  --green:#22c55e;
  --red:#ef4444;
  --r-sm:12px;
  --r:18px;
  --r-lg:26px;
  --shadow:0 22px 50px -26px rgba(2,8,23,.95);
  --glow:0 0 28px rgba(37,99,235,.45);
  --glow-cyan:0 0 30px rgba(56,189,248,.4);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 620px at 10% -6%, rgba(37,99,235,.24), transparent 62%),
    radial-gradient(780px 540px at 92% 6%, rgba(56,189,248,.15), transparent 62%),
    radial-gradient(760px 620px at 50% 112%, rgba(29,78,216,.18), transparent 66%);
}
h1,h2,h3,h4{margin:0 0 12px;line-height:1.28;font-weight:800;letter-spacing:-.02em}
p{margin:0 0 14px}
ul{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.shell{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.section{padding:76px 0;position:relative}
.section.tight{padding:56px 0}
.section.alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,0) 92%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid rgba(56,189,248,.28);
  padding:7px 15px;border-radius:999px;margin-bottom:18px;
}
.sec-title{font-size:clamp(23px,2.9vw,35px);font-weight:800;line-height:1.28;margin-bottom:14px}
.sec-title .hl{color:var(--cyan)}
.sec-lead{color:var(--muted);font-size:15.6px;max-width:760px;margin-bottom:26px}
.head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;margin-bottom:28px}
.head-split .sec-lead{margin-bottom:0}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:74px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16.5px;color:#fff;letter-spacing:-.01em;flex-shrink:0}
.brand:hover{color:#fff}
.brand-mark{
  width:40px;height:40px;border-radius:13px;flex-shrink:0;
  display:grid;place-items:center;font-size:17px;color:#fff;
  background:linear-gradient(135deg,#2563eb,#38bdf8);
  box-shadow:var(--glow);
}
.brand-text em{font-style:normal;color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  font-size:14.5px;font-weight:600;color:var(--muted);
  padding:9px 14px;border-radius:11px;white-space:nowrap;
  transition:background .22s ease,color .22s ease;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.09)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.32)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 18px;border-radius:12px;font-size:14px;font-weight:700;
  color:var(--text);border:1px solid rgba(148,163,184,.36);
  background:transparent;transition:.24s ease;white-space:nowrap;
}
.btn-line:hover{color:#fff;border-color:var(--cyan);background:rgba(56,189,248,.1)}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:13px;font-size:14.8px;font-weight:700;
  color:#fff;border:none;cursor:pointer;
  background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);
  box-shadow:0 0 26px rgba(37,99,235,.5);
  transition:transform .24s ease,box-shadow .24s ease,filter .24s ease;
  white-space:nowrap;
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(56,189,248,.68);color:#fff}
.btn-glow:active{transform:translateY(0) scale(.98)}
.btn-glow.sm{padding:10px 18px;font-size:13.6px;border-radius:11px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:13px;font-size:14.8px;font-weight:700;
  color:var(--text);border:1px solid rgba(56,189,248,.38);
  background:rgba(56,189,248,.06);transition:.24s ease;
}
.btn-ghost:hover{color:#fff;background:rgba(56,189,248,.14);border-color:var(--cyan)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(96,165,250,.28);background:rgba(11,26,58,.7);
  color:var(--text);font-size:17px;align-items:center;justify-content:center;
}

/* ============ HERO ============ */
.hero{position:relative;padding:62px 0 0;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/1039ae82eca2a3b3.jpg');
  background-size:cover;background-position:center;
  opacity:.32;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(3,7,18,.97) 0%,rgba(4,10,26,.88) 46%,rgba(8,18,41,.96) 100%);
}
.hero-inner{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:46px;align-items:start}
.hero h1{
  font-size:clamp(26px,3.9vw,46px);
  font-weight:900;line-height:1.18;letter-spacing:-.03em;margin-bottom:18px;
}
.hero h1 .accent{
  background:linear-gradient(100deg,#38bdf8,#2563eb 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#cbd5e1;font-size:16.1px;line-height:1.72;max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.point-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.1px;font-weight:600;color:#dbeafe;
  background:rgba(56,189,248,.09);border:1px solid rgba(56,189,248,.24);
  padding:8px 14px;border-radius:999px;
}
.point-chip i{color:var(--cyan);font-size:12.5px}

.hero-panel{
  border-radius:var(--r);
  background:var(--surface);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  padding:24px 22px 22px;
}
.panel-title{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:800;margin-bottom:6px}
.panel-title i{color:var(--cyan)}
.panel-sub{font-size:13.2px;color:var(--muted);margin-bottom:16px}
.region-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.region-tag{
  font-size:12.4px;font-weight:600;color:#e2e8f0;
  padding:6px 12px;border-radius:9px;
  background:rgba(11,26,58,.85);border:1px solid rgba(96,165,250,.22);
}
.region-tag.on{color:#fff;border-color:var(--line-strong);background:rgba(37,99,235,.28)}
.panel-rows{display:grid;gap:10px}
.panel-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:11px 14px;border-radius:var(--r-sm);
  background:rgba(3,7,18,.55);border:1px solid rgba(96,165,250,.14);
}
.panel-row .pr-left{display:flex;align-items:center;gap:10px;font-size:13.6px;font-weight:600}
.panel-row .pr-left i{color:var(--cyan);font-size:13px}
.panel-row .pr-right{font-size:13px;color:var(--muted);white-space:nowrap}
.panel-note{font-size:12.6px;color:var(--muted-2);margin:14px 0 0}

.stat-bar{
  position:relative;z-index:2;margin-top:46px;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
  background:rgba(3,7,18,.6);
}
.stat-item{padding:22px 20px;border-right:1px solid rgba(96,165,250,.12)}
.stat-item:last-child{border-right:none}
.stat-num{font-size:clamp(20px,2.4vw,27px);font-weight:900;color:#fff;line-height:1.2}
.stat-num span{color:var(--cyan);font-size:15px;font-weight:700}
.stat-label{font-size:12.8px;color:var(--muted);margin-top:5px;line-height:1.5}

/* ============ CHANNEL ============ */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel-card{
  display:block;padding:24px 22px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.channel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 30px rgba(37,99,235,.28);color:inherit}
.channel-ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-size:18px;color:#fff;margin-bottom:14px;
  background:linear-gradient(135deg,rgba(37,99,235,.9),rgba(56,189,248,.85));
  box-shadow:0 0 20px rgba(37,99,235,.4);
}
.channel-card h3{font-size:17px;margin-bottom:8px}
.channel-card p{font-size:13.8px;color:var(--muted);margin-bottom:12px}
.channel-more{font-size:13.2px;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:7px}

/* ============ MISTAKES ============ */
.miss-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.miss-card{
  padding:22px 22px 20px;border-radius:var(--r);
  background:var(--surface-2);border:1px solid rgba(96,165,250,.16);
  border-left:3px solid rgba(239,68,68,.7);
}
.miss-card h3{font-size:16.4px;margin-bottom:9px;display:flex;gap:10px;align-items:flex-start}
.miss-card h3 i{color:var(--red);font-size:15px;margin-top:4px}
.miss-card p{font-size:14.2px;color:var(--muted);margin-bottom:10px}
.miss-fix{font-size:13.8px;color:#dbeafe;background:rgba(56,189,248,.08);border:1px solid rgba(56,189,248,.2);border-radius:var(--r-sm);padding:11px 13px}
.miss-fix strong{color:var(--cyan)}

/* ============ FLOW ============ */
.flow{display:grid;gap:14px;counter-reset:flow}
.flow-step{
  display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:start;
  padding:20px 22px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease;
}
.flow-step:hover{border-color:var(--line-strong);transform:translateX(4px)}
.flow-num{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-weight:900;font-size:17px;color:#fff;
  background:linear-gradient(135deg,#1d4ed8,#38bdf8);
  box-shadow:0 0 18px rgba(37,99,235,.45);
}
.flow-step h3{font-size:16.4px;margin-bottom:6px}
.flow-step p{font-size:14.1px;color:var(--muted);margin:0}
.flow-step .mini{display:block;font-size:12.8px;color:var(--cyan);margin-top:8px;font-weight:600}

/* ============ PRICE ============ */
.price-list{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:var(--surface-2)}
.price-head{
  display:grid;grid-template-columns:1fr 1fr 1.2fr 1.5fr;gap:14px;
  padding:15px 22px;background:rgba(37,99,235,.18);
  font-size:12.6px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#dbeafe;
}
.price-row{
  display:grid;grid-template-columns:1fr 1fr 1.2fr 1.5fr;gap:14px;
  padding:16px 22px;border-top:1px solid rgba(96,165,250,.12);
  font-size:14.2px;align-items:center;
}
.price-row:hover{background:rgba(56,189,248,.05)}
.price-row strong{color:#fff;font-weight:800}
.price-cell{color:var(--muted)}
.price-cell .fast{color:var(--green);font-weight:700}
.price-note{font-size:13.4px;color:var(--muted);margin-top:14px;line-height:1.7}

/* ============ SCENES ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-card{
  border-radius:var(--r);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease;
}
.scene-card:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.scene-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene-card:hover .scene-thumb img{transform:scale(1.06)}
.scene-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,7,18,.05),rgba(3,7,18,.85))}
.scene-body{padding:18px 20px 22px}
.scene-body h3{font-size:16.6px;margin-bottom:8px}
.scene-body p{font-size:14px;color:var(--muted);margin:0}

/* ============ CHECKLIST ============ */
.check-wrap{
  display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;
  padding:30px;border-radius:var(--r-lg);
  background:var(--surface);border:1px solid var(--line);
}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.check-item{
  display:flex;gap:11px;align-items:flex-start;
  font-size:14.1px;color:#e2e8f0;
  padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(3,7,18,.5);border:1px solid rgba(96,165,250,.14);
}
.check-item i{color:var(--green);font-size:14px;margin-top:4px}
.check-side img{border-radius:var(--r);border:1px solid var(--line)}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:960px}
.faq-item{
  border-radius:var(--r);border:1px solid var(--line);
  background:var(--surface-2);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:15.6px;font-weight:700;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--cyan);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open]{border-color:var(--line-strong)}
.faq-a{padding:0 22px 20px;font-size:14.4px;color:var(--muted);line-height:1.72}

/* ============ NEWS ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  border-radius:var(--r);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  display:flex;flex-direction:column;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 0 30px rgba(37,99,235,.24)}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:rgba(3,7,18,.6)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.06)}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.news-tag{
  font-size:11.6px;font-weight:700;color:var(--cyan);
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.26);
  padding:4px 10px;border-radius:999px;
}
.news-date{font-size:12.2px;color:var(--muted-2);align-self:center}
.news-body h3{font-size:16px;line-height:1.45;margin-bottom:9px}
.news-body h3 a:hover{color:var(--cyan)}
.news-body p{font-size:13.7px;color:var(--muted);margin:0}
.news-empty{
  padding:26px;border-radius:var(--r);border:1px dashed rgba(96,165,250,.3);
  background:rgba(3,7,18,.5);color:var(--muted);font-size:14.4px;text-align:center;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);padding:42px 40px;
  background:linear-gradient(120deg,rgba(29,78,216,.32),rgba(8,18,41,.9) 55%,rgba(56,189,248,.18));
  border:1px solid var(--line-strong);
  box-shadow:0 0 44px -18px rgba(37,99,235,.7);
  display:grid;grid-template-columns:1.25fr .75fr;gap:32px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.7vw,32px);margin-bottom:12px}
.cta-band p{color:#cbd5e1;font-size:15.2px;margin-bottom:0;max-width:640px}
.cta-actions{display:flex;flex-direction:column;gap:12px}

/* ============ FAB ============ */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:1050;
  width:58px;height:58px;border-radius:18px;
  display:grid;place-items:center;
  color:#fff;font-size:20px;
  background:linear-gradient(135deg,rgba(37,99,235,.92),rgba(56,189,248,.92));
  border:1px solid rgba(56,189,248,.65);
  box-shadow:0 0 24px rgba(56,189,248,.45);
  opacity:.82;transition:transform .25s ease,opacity .25s ease,box-shadow .25s ease;
}
.fab:hover{opacity:1;color:#fff;transform:translateY(-3px) scale(1.06);box-shadow:0 0 38px rgba(56,189,248,.7)}
.fab:active{transform:scale(.95)}
.fab-dot{
  position:absolute;top:9px;right:9px;width:10px;height:10px;border-radius:50%;
  background:var(--red);box-shadow:0 0 0 2px rgba(3,7,18,.9);
  animation:fabPulse 1.8s infinite;
}
@keyframes fabPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.78)}}

/* ============ FOOTER ============ */
.site-footer{
  margin-top:20px;padding:58px 0 26px;
  background:linear-gradient(180deg,rgba(8,18,41,.85),rgba(3,7,18,.98));
  border-top:1px solid var(--line);
}
.foot-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16.5px;color:#fff;margin-bottom:16px}
.foot-brand em{font-style:normal;color:var(--cyan)}
.foot-text{font-size:13.9px;color:var(--muted);line-height:1.72;margin-bottom:16px}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px}
.foot-badge{
  font-size:12px;font-weight:600;color:#cbd5e1;
  padding:5px 11px;border-radius:999px;
  background:rgba(11,26,58,.8);border:1px solid rgba(96,165,250,.2);
}
.foot-title{font-size:13.4px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:#e2e8f0;margin-bottom:14px}
.foot-links li{margin-bottom:9px}
.foot-links a{font-size:13.9px;color:var(--muted)}
.foot-links a:hover{color:var(--cyan)}
.foot-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(96,165,250,.14);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:12.8px;color:var(--muted-2);
}
.age-badge{
  font-size:12px;font-weight:800;color:#fff;
  padding:4px 10px;border-radius:8px;
  background:rgba(239,68,68,.2);border:1px solid rgba(239,68,68,.5);
}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .nav-links{
    position:fixed;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    margin-left:0;padding:16px 20px 22px;
    background:rgba(3,7,18,.98);
    border-bottom:1px solid var(--line);
    max-height:calc(100vh - 74px);overflow-y:auto;
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:transform .25s ease,opacity .25s ease;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links .nav-link{padding:12px 14px;font-size:15px}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:none}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid rgba(96,165,250,.12)}
  .channel-grid{grid-template-columns:1fr 1fr}
  .scene-grid{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr 1fr}
  .check-wrap{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:34px 26px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
}
@media (max-width:768px){
  .section{padding:58px 0}
  .section.tight{padding:44px 0}
  .head-split{flex-direction:column;align-items:flex-start;gap:10px}
  .miss-grid{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .price-head{display:none}
  .price-row{grid-template-columns:1fr;gap:6px;padding:16px 18px}
  .price-cell{display:flex;justify-content:space-between;gap:14px}
  .price-cell::before{content:attr(data-label);color:var(--muted-2);font-size:12.6px;font-weight:600}
  .flow-step{grid-template-columns:44px 1fr;gap:14px;padding:18px}
  .flow-num{width:40px;height:40px;font-size:15px;border-radius:12px}
}
@media (max-width:560px){
  .nav-wrap{gap:10px;min-height:68px}
  .brand{font-size:14px;gap:8px}
  .brand-mark{width:34px;height:34px;font-size:15px;border-radius:11px}
  .brand-text em{display:none}
  .nav-actions{gap:7px}
  .btn-line{padding:8px 11px;font-size:12.4px;border-radius:10px}
  .btn-glow.sm{padding:9px 12px;font-size:12.4px;border-radius:10px}
  .btn-glow.sm i{display:none}
  .nav-toggle{width:38px;height:38px;font-size:15px}
  .nav-links{top:68px;max-height:calc(100vh - 68px)}
  .hero{padding-top:44px}
  .hero-lead{font-size:15.2px}
  .stat-item{padding:18px 14px}
  .check-wrap{padding:22px 18px}
  .cta-band{padding:26px 20px}
  .fab{left:12px;bottom:84px;width:52px;height:52px;font-size:18px;border-radius:16px}
  .foot-bottom{font-size:12.2px}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a3a;
  --surface:rgba(15,27,56,.70);
  --surface-2:rgba(9,20,45,.92);
  --line:rgba(96,165,250,.18);
  --line-strong:rgba(56,189,248,.45);
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --cyan:#38bdf8;
  --text:#f8fafc;
  --muted:#94a3b8;
  --muted-2:#64748b;
  --gold:#fbbf24;
  --green:#22c55e;
  --red:#ef4444;
  --r-sm:12px;
  --r:18px;
  --r-lg:26px;
  --shadow:0 22px 50px -26px rgba(2,8,23,.95);
  --glow:0 0 28px rgba(37,99,235,.45);
  --glow-cyan:0 0 30px rgba(56,189,248,.4);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 620px at 10% -6%, rgba(37,99,235,.24), transparent 62%),
    radial-gradient(780px 540px at 92% 6%, rgba(56,189,248,.15), transparent 62%),
    radial-gradient(760px 620px at 50% 112%, rgba(29,78,216,.18), transparent 66%);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.28}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.shell{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px}
.section{padding:76px 0;position:relative;border-bottom:1px solid rgba(96,165,250,.08)}
.section.tight{padding:56px 0}
.section.alt{background:linear-gradient(180deg,rgba(8,18,41,.72),rgba(3,7,18,0) 92%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);background:rgba(56,189,248,.1);
  border:1px solid rgba(56,189,248,.28);
  padding:7px 15px;border-radius:999px;margin-bottom:18px;
}
.sec-head{max-width:790px;margin-bottom:38px}
.sec-title{font-size:clamp(23px,2.9vw,35px);font-weight:800;line-height:1.28;letter-spacing:-.02em;margin-bottom:14px}
.sec-title .hl{color:var(--cyan)}
.sec-sub{color:var(--muted);font-size:15.6px;line-height:1.72}
.text-glow{color:var(--cyan)}
/* ===== HEADER ===== */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(3,7,18,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:74px;position:relative}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16.5px;color:#fff;letter-spacing:-.01em;flex-shrink:0}
.brand:hover{color:#fff}
.brand-mark{
  width:40px;height:40px;border-radius:13px;flex-shrink:0;
  display:grid;place-items:center;font-size:17px;color:#fff;
  background:linear-gradient(135deg,#2563eb,#38bdf8);
  box-shadow:var(--glow);
}
.brand-text em{font-style:normal;color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  font-size:14.5px;font-weight:600;color:var(--muted);
  padding:9px 14px;border-radius:11px;white-space:nowrap;
  transition:background .22s ease,color .22s ease;
}
.nav-link:hover{color:#fff;background:rgba(56,189,248,.09)}
.nav-link.active{color:#fff;background:rgba(37,99,235,.22);box-shadow:inset 0 0 0 1px rgba(56,189,248,.32)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 18px;border-radius:12px;font-size:14px;font-weight:700;
  color:var(--text);border:1px solid rgba(148,163,184,.36);
  background:transparent;transition:.24s ease;white-space:nowrap;
}
.btn-line:hover{color:#fff;border-color:var(--cyan);background:rgba(56,189,248,.1)}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:13px;font-size:14.8px;font-weight:700;
  color:#fff;border:none;cursor:pointer;
  background:linear-gradient(135deg,#2563eb 0%,#38bdf8 100%);
  box-shadow:0 0 26px rgba(37,99,235,.5);
  transition:transform .24s ease,box-shadow .24s ease,filter .24s ease;
  white-space:nowrap;
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(56,189,248,.68);color:#fff}
.btn-glow:active{transform:translateY(0) scale(.98)}
.btn-glow.sm{padding:10px 18px;font-size:13.6px;border-radius:11px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:13px;font-size:14.8px;font-weight:700;
  color:var(--text);border:1px solid rgba(56,189,248,.38);
  background:rgba(56,189,248,.06);transition:.24s ease;
}
.btn-ghost:hover{color:#fff;background:rgba(56,189,248,.14);border-color:var(--cyan)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(96,165,250,.28);background:rgba(11,26,58,.7);
  color:var(--text);font-size:17px;align-items:center;justify-content:center;
}
/* ===== HERO ===== */
.hero{position:relative;padding:62px 0 72px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/c7fb6256141038b2.jpg');
  background-size:cover;background-position:center;
  opacity:.32;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(3,7,18,.97) 0%,rgba(4,10,26,.87) 46%,rgba(8,18,41,.95) 100%);
}
.hero-inner{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
.hero h1{font-size:clamp(26px,3.9vw,46px);font-weight:900;line-height:1.16;letter-spacing:-.03em;margin-bottom:18px}
.hero h1 .accent{
  background:linear-gradient(100deg,#38bdf8,#2563eb 72%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#cbd5e1;font-size:16.2px;line-height:1.72;max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.point-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.2px;font-weight:600;color:#dbeafe;
  background:rgba(56,189,248,.09);border:1px solid rgba(56,189,248,.24);
  padding:8px 14px;border-radius:999px;
}
.point-chip i{color:var(--cyan);font-size:12.5px}
.hero-stack{display:grid;gap:16px}
.stack-card{
  border-radius:var(--r);padding:20px 22px;
  background:var(--surface);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
}
.stack-main{border-color:var(--line-strong);box-shadow:var(--shadow),0 0 32px -12px rgba(56,189,248,.35)}
.stack-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.stack-title{font-size:15px;font-weight:700;color:#e0f2fe}
.stack-tags{display:flex;gap:8px;flex-wrap:wrap}
.mini-tag{
  font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:#bae6fd;background:rgba(37,99,235,.24);border:1px solid rgba(56,189,248,.32);
  padding:5px 11px;border-radius:999px;
}
.mini-tag.green{color:#bbf7d0;background:rgba(34,197,94,.16);border-color:rgba(34,197,94,.35)}
.syntax-line{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:11px 0;border-top:1px dashed rgba(96,165,250,.22);
  font-size:14px;color:#e2e8f0;
}
.syntax-line:first-of-type{border-top:none}
.syntax-line b{font-weight:700;color:#fff}
.code-pill{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13px;color:#7dd3fc;background:rgba(56,189,248,.12);
  border:1px solid rgba(56,189,248,.28);padding:4px 10px;border-radius:9px;white-space:nowrap;
}
.stack-foot{margin-top:14px;font-size:13.2px;color:var(--muted);display:flex;align-items:center;gap:8px}
.stack-foot i{color:var(--green)}
.stack-row{display:grid;grid-template-columns:1.12fr .88fr;gap:16px}
.stack-mini{display:flex;flex-direction:column;gap:6px;justify-content:center}
.stack-mini.offset{transform:translateY(-14px)}
.stack-num{font-size:32px;font-weight:900;line-height:1;letter-spacing:-.03em;color:#fff}
.stack-num small{font-size:14px;font-weight:700;color:var(--cyan);margin-left:4px}
.stack-cap{font-size:12.8px;color:var(--muted);line-height:1.55}
/* ===== STAT STRIP ===== */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:44px}
.stat-item{
  padding:20px 20px;
  border-left:2px solid rgba(56,189,248,.4);
  background:linear-gradient(90deg,rgba(37,99,235,.14),rgba(37,99,235,0) 92%);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
}
.stat-item .n{font-size:26px;font-weight:900;color:#fff;letter-spacing:-.02em;line-height:1.2}
.stat-item .n span{font-size:14px;color:var(--cyan);font-weight:700;margin-left:4px}
.stat-item .l{font-size:13.2px;color:var(--muted);margin-top:4px}
/* ===== SYNTAX TABLE ===== */
.table-scroll{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);
  background:var(--surface-2);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.syntax-table{width:100%;min-width:760px;border-collapse:collapse;font-size:14.6px}
.syntax-table thead th{
  background:rgba(37,99,235,.24);color:#e0f2fe;font-size:12px;
  text-transform:uppercase;letter-spacing:.09em;font-weight:700;
  text-align:left;padding:15px 18px;white-space:nowrap;
}
.syntax-table tbody td{padding:14px 18px;border-top:1px solid rgba(96,165,250,.12);color:#dbeafe;vertical-align:middle}
.syntax-table tbody tr:hover{background:rgba(56,189,248,.07)}
.syntax-table code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.28);
  color:#7dd3fc;padding:4px 10px;border-radius:9px;font-size:13.4px;white-space:nowrap;
}
.net-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:#fff;background:rgba(37,99,235,.2);border:1px solid rgba(56,189,248,.3);
  padding:5px 12px;border-radius:999px;white-space:nowrap;
}
.net-badge.mobi{background:rgba(34,197,94,.14);border-color:rgba(34,197,94,.32)}
.speed-tag{font-size:13px;color:#bbf7d0;font-weight:600}
.syntax-note{
  margin-top:20px;font-size:14px;color:var(--muted);line-height:1.7;
  padding-left:16px;border-left:2px solid rgba(56,189,248,.4);
}
/* ===== WHY / SCENARIOS ===== */
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start}
.reason-list{display:grid;gap:18px}
.reason{display:flex;gap:14px;align-items:flex-start}
.reason i{
  flex-shrink:0;width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  font-size:14px;color:#fff;background:linear-gradient(135deg,#2563eb,#38bdf8);box-shadow:0 0 18px rgba(37,99,235,.4);
}
.reason h3{font-size:16px;font-weight:700;margin-bottom:5px;color:#fff}
.reason p{font-size:14.6px;color:var(--muted);line-height:1.7}
.figure-note{margin-top:14px;font-size:13px;color:var(--muted-2);line-height:1.6}
.why-figure img{border-radius:var(--r);border:1px solid var(--line);width:100%;object-fit:cover;max-height:290px}
.scene-list{margin-top:26px;border-top:1px solid rgba(96,165,250,.18)}
.scene-item{padding:16px 0;border-bottom:1px solid rgba(96,165,250,.14)}
.scene-item h3{font-size:15.4px;font-weight:700;color:#fff;margin-bottom:6px}
.scene-item h3 span{color:var(--cyan);font-family:ui-monospace,monospace;margin-right:8px}
.scene-item p{font-size:14.4px;color:var(--muted);line-height:1.7}
/* ===== STEPS ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{
  position:relative;padding:24px 20px 22px;border-radius:var(--r);
  background:linear-gradient(160deg,rgba(15,27,56,.82),rgba(6,14,34,.72));
  border:1px solid var(--line);transition:transform .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.step-num{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-weight:900;font-size:15px;color:#fff;margin-bottom:14px;
  background:linear-gradient(135deg,#2563eb,#38bdf8);box-shadow:0 0 18px rgba(56,189,248,.4);
}
.step h3{font-size:15.6px;font-weight:700;margin-bottom:8px;color:#fff}
.step p{font-size:14.2px;color:var(--muted);line-height:1.68}
.step-note{
  margin-top:26px;padding:18px 22px;border-radius:var(--r-sm);
  background:rgba(251,191,36,.08);border:1px solid rgba(251,191,36,.28);
  color:#fde68a;font-size:14.2px;line-height:1.7;display:flex;gap:12px;align-items:flex-start;
}
.step-note i{margin-top:3px;color:var(--gold)}
/* ===== PAYMENTS ===== */
.pay-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pay-item{
  padding:22px 20px;border-radius:var(--r);border:1px solid var(--line);
  background:var(--surface);transition:.25s ease;
}
.pay-item:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:0 20px 40px -26px rgba(56,189,248,.6)}
.pay-item i.pay-ico{font-size:19px;color:var(--cyan);margin-bottom:14px;display:block}
.pay-item h3{font-size:15.6px;font-weight:700;color:#fff;margin-bottom:7px}
.pay-item p{font-size:14px;color:var(--muted);line-height:1.68}
/* ===== FIX LIST ===== */
.fix-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:start}
.fix-list{border-top:1px solid rgba(96,165,250,.18)}
.fix-row{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid rgba(96,165,250,.14)}
.fix-row .mark{
  flex-shrink:0;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  font-size:12.5px;font-weight:800;color:#fecaca;background:rgba(239,68,68,.14);
  border:1px solid rgba(239,68,68,.32);
}
.fix-row h3{font-size:15.6px;font-weight:700;color:#fff;margin-bottom:7px}
.fix-row p{font-size:14.4px;color:var(--muted);line-height:1.72}
.fix-figure img{border-radius:var(--r);border:1px solid var(--line);width:100%;max-height:330px;object-fit:cover}
.fix-help{
  margin-top:22px;padding:18px 20px;border-radius:var(--r-sm);
  background:rgba(56,189,248,.08);border:1px solid rgba(56,189,248,.24);
  font-size:13.8px;color:#cbd5e1;line-height:1.7;
}
.fix-help strong{color:#fff}
/* ===== CHANNEL MATRIX ===== */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.channel-card{
  display:flex;flex-direction:column;gap:10px;padding:24px 22px;border-radius:var(--r);
  border:1px solid var(--line);background:linear-gradient(160deg,rgba(15,27,56,.8),rgba(6,14,34,.7));
  transition:.26s ease;
}
.channel-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 24px 44px -28px rgba(56,189,248,.7);color:inherit}
.channel-card .ch-label{font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
.channel-card h3{font-size:17px;font-weight:800;color:#fff}
.channel-card p{font-size:14.2px;color:var(--muted);line-height:1.68}
.channel-card .ch-more{font-size:13.4px;font-weight:700;color:#bae6fd;display:inline-flex;align-items:center;gap:8px;margin-top:4px}
/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r);
  background:var(--surface);overflow:hidden;transition:border-color .24s ease;
}
.faq-item[open]{border-color:var(--line-strong)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 22px;
  font-size:15.8px;font-weight:700;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--cyan);flex-shrink:0;transition:transform .24s ease;
}
.faq-item[open] summary::after{content:"\f068"}
.faq-item p{padding:0 22px 20px;font-size:14.6px;color:var(--muted);line-height:1.75}
/* ===== NEWS ===== */
.news-card{
  display:flex;flex-direction:column;gap:12px;height:100%;
  padding:22px;border-radius:var(--r);background:var(--surface);
  border:1px solid var(--line);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 22px 42px -26px rgba(56,189,248,.6);color:inherit}
.news-tag{
  align-self:flex-start;font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:#bae6fd;background:rgba(37,99,235,.22);border:1px solid rgba(56,189,248,.3);
  padding:5px 11px;border-radius:999px;
}
.news-card h3{font-size:16.4px;font-weight:700;line-height:1.45;color:#fff}
.news-card p{font-size:14px;color:var(--muted);line-height:1.7}
.news-meta{font-size:12.8px;color:var(--muted-2);margin-top:auto;display:flex;align-items:center;gap:8px}
.empty-note{
  padding:26px;border-radius:var(--r);border:1px dashed rgba(96,165,250,.3);
  color:var(--muted);font-size:14.6px;background:rgba(9,20,45,.6);
}
/* ===== CTA ===== */
.cta-band{
  border-radius:var(--r-lg);padding:44px 40px;
  background:linear-gradient(120deg,rgba(37,99,235,.34),rgba(8,18,41,.9) 62%);
  border:1px solid var(--line-strong);
  box-shadow:0 0 46px -18px rgba(56,189,248,.6);
  display:grid;grid-template-columns:1.35fr .65fr;gap:34px;align-items:center;
}
.cta-band h2{font-size:clamp(21px,2.6vw,31px);font-weight:900;line-height:1.3;margin-bottom:12px}
.cta-band p{font-size:15.2px;color:#cbd5e1;line-height:1.72;max-width:620px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%}
/* ===== FAB ===== */
.fab{
  position:fixed;left:16px;bottom:96px;z-index:1050;
  display:inline-flex;align-items:center;gap:10px;
  min-height:54px;padding:14px 20px 14px 16px;border-radius:999px;
  font-size:13.5px;font-weight:700;color:#e0f2fe;
  background-image:linear-gradient(rgba(3,7,18,.86),rgba(3,7,18,.86)),linear-gradient(120deg,#38bdf8,#2563eb 55%,#22d3ee);
  background-origin:border-box;background-clip:padding-box,border-box;
  border:1px solid transparent;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 0 22px rgba(6,182,212,.45);
  transition:transform .25s ease,box-shadow .25s ease,opacity .25s ease;
  opacity:.82;
}
.fab:hover{opacity:1;color:#fff;transform:translateY(-3px) scale(1.04);box-shadow:0 0 34px rgba(56,189,248,.65)}
.fab:active{transform:scale(.96)}
.fab i{font-size:16px;animation:fabFlicker 2.6s infinite}
.fab-dot{
  position:absolute;top:6px;right:10px;width:11px;height:11px;border-radius:50%;
  background:#ef4444;box-shadow:0 0 0 3px rgba(3,7,18,.9);
  animation:fabPulse 1.8s infinite;
}
@keyframes fabPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.82)}}
@keyframes fabFlicker{0%,92%,100%{opacity:1}94%{opacity:.45}96%{opacity:1}}
/* ===== FOOTER ===== */
.site-footer{
  background:linear-gradient(180deg,rgba(3,7,18,.6),rgba(8,18,41,.9));
  border-top:1px solid var(--line);padding:64px 0 26px;margin-top:0;
}
.foot-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16.5px;color:#fff;margin-bottom:16px}
.foot-brand em{font-style:normal;color:var(--cyan)}
.foot-brand .brand-mark{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#2563eb,#38bdf8);box-shadow:var(--glow)}
.foot-text{font-size:14.2px;color:var(--muted);line-height:1.75;max-width:430px}
.foot-badges{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
.foot-badge{
  font-size:12.4px;font-weight:600;color:#cbd5e1;
  background:rgba(56,189,248,.08);border:1px solid rgba(96,165,250,.24);
  padding:6px 12px;border-radius:999px;
}
.foot-title{font-size:14.4px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.01em}
.foot-links li{margin-bottom:10px}
.foot-links a{font-size:14px;color:var(--muted);transition:color .22s ease,padding-left .22s ease}
.foot-links a:hover{color:var(--cyan);padding-left:4px}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(96,165,250,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.2px;color:var(--muted-2);
}
.age-badge{
  font-size:12.4px;font-weight:800;color:#fecaca;
  border:1px solid rgba(239,68,68,.4);background:rgba(239,68,68,.12);
  padding:4px 12px;border-radius:999px;
}
/* ===== RESPONSIVE ===== */
@media (max-width:1024px){
  .nav-links{
    display:none;position:absolute;top:74px;left:22px;right:22px;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:14px 16px 18px;border-radius:0 0 var(--r) var(--r);
    background:rgba(3,7,18,.98);border:1px solid var(--line);border-top:none;
    backdrop-filter:blur(18px);
  }
  .nav-links.open{display:flex}
  .nav-link{padding:12px 14px;font-size:14.5px}
  .nav-toggle{display:inline-flex}
  .nav-actions{margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .why-grid,.fix-grid{grid-template-columns:1fr;gap:34px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .pay-grid{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;gap:26px}
}
@media (max-width:768px){
  .section{padding:60px 0}
  .hero{padding:48px 0 58px}
  .stack-row{grid-template-columns:1fr}
  .stack-mini.offset{transform:none}
  .cta-band{padding:32px 24px}
  .site-footer{padding:52px 0 24px}
  .fab{bottom:88px}
}
@media (max-width:520px){
  .shell{padding:0 14px}
  .nav-wrap{gap:8px;min-height:68px}
  .brand{gap:7px;font-size:14px}
  .brand-text em{display:none}
  .brand-mark{width:36px;height:36px;border-radius:11px;font-size:15px}
  .nav-links{top:68px;left:14px;right:14px}
  .btn-line{padding:8px 10px;font-size:12.4px}
  .btn-glow.sm{padding:8px 12px;font-size:12.4px;gap:6px}
  .btn-glow.sm i{display:none}
  .nav-toggle{width:38px;height:38px;font-size:15px}
  .hero h1{font-size:clamp(23px,7vw,30px)}
  .hero-lead{font-size:15.2px}
  .stat-strip,.pay-grid,.channel-grid,.steps{grid-template-columns:1fr}
  .stack-card{padding:18px 16px}
  .cta-band{padding:26px 18px}
  .faq-item summary{padding:16px 16px;font-size:14.8px}
  .faq-item p{padding:0 16px 18px}
  .sec-title{font-size:22px}
}

/* 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}