/* roulang page: index */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a35;
  --surface:rgba(148,197,253,.06);
  --surface-2:rgba(148,197,253,.11);
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563eb;
  --cyan:#38bdf8;
  --holo:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --dim:#64748b;
  --ok:#22c55e;
  --gold:#facc15;
  --danger:#f43f5e;
  --r-xs:8px;
  --r-sm:12px;
  --r:16px;
  --r-lg:24px;
  --max:1200px;
  --sh:0 18px 50px rgba(2,8,23,.6);
  --glow:0 0 22px rgba(56,189,248,.45);
  --glow-strong:0 0 34px rgba(6,182,212,.65);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Be Vietnam Pro','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-3;background:
  radial-gradient(900px 520px at 12% -5%,rgba(37,99,235,.22),transparent 65%),
  radial-gradient(760px 460px at 92% 8%,rgba(6,182,212,.16),transparent 68%),
  linear-gradient(180deg,#030712 0%,#050b1c 45%,#030712 100%)}
img{max-width:100%;display:block;border:0}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7dd3fc}
button{font:inherit;cursor:pointer}
p{margin:0 0 14px;color:var(--muted);line-height:1.7}
h1,h2,h3,h4{margin:0 0 12px;color:var(--text);line-height:1.28;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(26px,3.6vw,44px);line-height:1.2}
h2{font-size:clamp(22px,2.6vw,33px)}
h3{font-size:clamp(17px,1.5vw,20px)}
h4{font-size:16px}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.section{position:relative;padding:74px 0;border-top:1px solid rgba(56,189,248,.1)}
.section.tint{background:linear-gradient(180deg,rgba(8,18,41,.85),rgba(3,7,18,.15))}
.section-head{max-width:780px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#7dd3fc;background:rgba(37,99,235,.16);border:1px solid var(--line-strong);border-radius:999px;padding:6px 13px}
.lead{font-size:16.5px;color:#cbd5e1;max-width:820px}
.muted{color:var(--muted)}
.grid{display:grid;gap:18px}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.split{display:grid;grid-template-columns:minmax(0,4.2fr) minmax(0,7.8fr);gap:44px;align-items:start}
.split-rev{display:grid;grid-template-columns:minmax(0,7.5fr) minmax(0,4.5fr);gap:40px;align-items:start}
.glass{background:linear-gradient(180deg,rgba(148,197,253,.09),rgba(148,197,253,.03));border:1px solid var(--line);border-radius:var(--r);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.pad{padding:24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 24px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease;white-space:nowrap}
.btn-primary{background:linear-gradient(120deg,#2563eb,#38bdf8);color:#04121f;box-shadow:var(--glow);font-weight:700}
.btn-primary:hover{color:#04121f;transform:translateY(-2px);box-shadow:var(--glow-strong)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:rgba(148,197,253,.07);color:#e2f2ff;border-color:var(--line-strong)}
.btn-ghost:hover{background:rgba(56,189,248,.16);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-link{background:none;border:0;color:var(--cyan);font-weight:600;padding:0}
.tag{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:#bae6fd;background:rgba(56,189,248,.1);border:1px solid var(--line);border-radius:999px;padding:6px 12px}
.badge-hot{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#04121f;background:linear-gradient(120deg,#facc15,#f59e0b);border-radius:999px;padding:4px 10px}
.badge-live{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#d1fae5;background:rgba(34,197,94,.16);border:1px solid rgba(34,197,94,.4);border-radius:999px;padding:4px 10px}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px var(--ok);animation:blink 1.4s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(3,7,18,.84);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:14px;height:74px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,#2563eb,#38bdf8);color:#04121f;font-weight:800;font-size:15px;box-shadow:var(--glow)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:14.5px;color:#fff;letter-spacing:-.01em}
.logo-text span{font-size:10.5px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{display:block;padding:10px 13px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--muted);border:1px solid transparent;transition:.2s}
.nav-link:hover{color:#fff;background:var(--surface)}
.nav-link.active{color:#e0f2fe;background:rgba(37,99,235,.22);border-color:var(--line-strong)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn-login{padding:10px 14px;font-size:14px;font-weight:600;color:#cbe6ff;border:1px solid var(--line);border-radius:10px;background:transparent;transition:.2s}
.btn-login:hover{color:#fff;border-color:var(--line-strong);background:var(--surface)}
.btn-signup{padding:11px 20px;font-size:14px;font-weight:700;color:#04121f;background:linear-gradient(120deg,#2563eb,#38bdf8);border-radius:10px;box-shadow:var(--glow);transition:.22s}
.btn-signup:hover{color:#04121f;transform:translateY(-1px);box-shadow:var(--glow-strong)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:11px;background:var(--surface);border:1px solid var(--line);color:#cbe6ff;place-items:center;font-size:17px}

/* ---------- Hero ---------- */
.hero{position:relative;isolation:isolate;padding:66px 0 58px;border-bottom:1px solid var(--line);overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:-2;opacity:.62}
.hero-overlay{position:absolute;inset:0;z-index:-1;background:
  linear-gradient(112deg,rgba(3,7,18,.97) 0%,rgba(3,7,18,.88) 44%,rgba(8,18,41,.7) 100%),
  radial-gradient(880px 460px at 80% 10%,rgba(37,99,235,.38),transparent 70%)}
.hero-copy{max-width:830px}
.hero-copy h1{margin:18px 0 16px}
.hero-lead{font-size:17px;color:#cbd5e1;max-width:760px;margin-bottom:26px;line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:24px}
.pay-row{display:flex;flex-wrap:wrap;gap:9px;align-items:center}
.pay-row .pay-label{font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);margin-right:4px}
.pay-chip{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:#dbeafe;background:rgba(148,197,253,.08);border:1px solid var(--line);border-radius:9px;padding:7px 12px}
.pay-chip i{color:var(--cyan)}
.poster-rail{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:46px}
.poster{position:relative;height:212px;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:#081229;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.poster:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 18px 36px rgba(2,8,23,.7)}
.poster img{width:100%;height:100%;object-fit:cover;opacity:.9}
.poster .badge-hot{position:absolute;top:11px;left:11px}
.poster .poster-label{position:absolute;left:0;right:0;bottom:0;padding:26px 13px 12px;background:linear-gradient(180deg,transparent,rgba(3,7,18,.95));font-size:12.5px;font-weight:600;color:#e6f3ff;line-height:1.45}

/* ---------- Stats strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(8,18,41,.6)}
.stat-item{padding:24px 22px;border-right:1px solid rgba(56,189,248,.14)}
.stat-item:last-child{border-right:0}
.stat-item b{display:block;font-size:clamp(22px,2.4vw,30px);font-weight:800;color:#7dd3fc;letter-spacing:-.02em;margin-bottom:6px}
.stat-item span{font-size:13.5px;color:var(--muted);line-height:1.55;display:block}

/* ---------- Why blocks ---------- */
.why-item{display:grid;grid-template-columns:52px minmax(0,1fr);gap:18px;padding:24px 0;border-bottom:1px solid rgba(56,189,248,.13)}
.why-item:last-child{border-bottom:0;padding-bottom:0}
.why-item:first-child{padding-top:0}
.why-num{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(37,99,235,.3),rgba(56,189,248,.16));border:1px solid var(--line-strong);color:#7dd3fc;font-weight:800;font-size:16px}
.why-item h3{margin-bottom:9px}

/* ---------- Compare ---------- */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(8,18,41,.55)}
.compare-col{padding:26px 24px}
.compare-col.before{background:rgba(244,63,94,.05)}
.compare-col.after{background:rgba(34,197,94,.07);border-left:1px solid var(--line)}
.compare-col h3{display:flex;align-items:center;gap:10px;font-size:17px;margin-bottom:18px}
.compare-col.before h3 i{color:var(--danger)}
.compare-col.after h3 i{color:var(--ok)}
.cmp-list li{display:flex;gap:11px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed rgba(148,197,253,.16);font-size:14.5px;color:#cbd5e1;line-height:1.6}
.cmp-list li:last-child{border-bottom:0}
.cmp-list i{margin-top:4px;font-size:13px;flex-shrink:0}
.compare-col.before .cmp-list i{color:var(--danger)}
.compare-col.after .cmp-list i{color:var(--ok)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;counter-reset:st}
.step{position:relative;padding:26px 22px 22px;border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(180deg,rgba(148,197,253,.08),rgba(148,197,253,.02));transition:.25s}
.step:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.step::before{counter-increment:st;content:counter(st,decimal-leading-zero);position:absolute;top:-14px;left:22px;font-size:12px;font-weight:800;letter-spacing:.1em;color:#04121f;background:linear-gradient(120deg,#38bdf8,#2563eb);border-radius:8px;padding:5px 11px}
.step h3{margin:14px 0 8px;font-size:17px}
.step p{font-size:14px;margin:0}
.flow-line{list-style:none;counter-reset:fl;margin:0}
.flow-line li{position:relative;padding:0 0 26px 62px;counter-increment:fl}
.flow-line li:last-child{padding-bottom:0}
.flow-line li::before{content:counter(fl);position:absolute;left:0;top:0;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:rgba(37,99,235,.22);border:1px solid var(--line-strong);color:#7dd3fc;font-weight:800;font-size:15px}
.flow-line li::after{content:"";position:absolute;left:19.5px;top:44px;bottom:6px;width:1px;background:linear-gradient(180deg,rgba(56,189,248,.5),rgba(56,189,248,0))}
.flow-line li:last-child::after{display:none}
.flow-line h3{font-size:16.5px;margin-bottom:6px}
.flow-line p{font-size:14px;margin:0}

/* ---------- Tiers ---------- */
.tier-table{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(8,18,41,.55)}
.tier-row{display:grid;grid-template-columns:170px minmax(0,1fr) 190px;gap:18px;align-items:center;padding:18px 22px;border-bottom:1px solid rgba(56,189,248,.12)}
.tier-row:last-child{border-bottom:0}
.tier-row.head{background:rgba(37,99,235,.16);font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#9fd7ff}
.tier-name{font-weight:700;font-size:15px;color:#fff;display:flex;align-items:center;gap:9px}
.tier-name i{color:var(--gold)}
.tier-bar{height:8px;border-radius:999px;background:rgba(148,197,253,.14);overflow:hidden;margin-top:9px}
.tier-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#2563eb,#38bdf8)}
.tier-note{font-size:13.5px;color:var(--muted);line-height:1.55}
.tier-limit{font-size:14.5px;font-weight:700;color:#7dd3fc;text-align:right}
.tier-limit small{display:block;font-size:12px;font-weight:500;color:var(--dim);margin-top:3px}

/* ---------- Network cards ---------- */
.net-card{padding:24px 22px;border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(180deg,rgba(148,197,253,.07),rgba(148,197,253,.02));transition:.25s}
.net-card:hover{border-color:var(--line-strong);box-shadow:0 16px 34px rgba(2,8,23,.6)}
.net-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.net-top i{font-size:20px;color:var(--cyan)}
.net-name{font-size:16px;font-weight:700;color:#fff;margin-bottom:4px}
.net-fee{font-size:13px;color:#7dd3fc;font-weight:600;margin-bottom:12px}
.net-card p{font-size:14px;margin:0}

/* ---------- Security list ---------- */
.sec-item{display:grid;grid-template-columns:46px minmax(0,1fr);gap:16px;padding:20px;border:1px solid var(--line);border-radius:var(--r);background:rgba(148,197,253,.04);transition:.24s}
.sec-item:hover{border-color:var(--line-strong);background:rgba(148,197,253,.08)}
.sec-item i.ico{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:rgba(37,99,235,.22);border:1px solid var(--line-strong);color:#7dd3fc;font-size:18px}
.sec-item h3{font-size:16px;margin-bottom:6px}
.sec-item p{font-size:14px;margin:0}

/* ---------- Audience ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;gap:9px;font-size:14px;font-weight:500;color:#dbeafe;background:rgba(56,189,248,.08);border:1px solid var(--line);border-radius:999px;padding:10px 16px;transition:.22s}
.chip:hover{border-color:var(--line-strong);background:rgba(56,189,248,.16);transform:translateY(-2px)}
.chip i{color:var(--cyan);font-size:13px}
.notice{border:1px dashed rgba(56,189,248,.34);border-radius:var(--r);padding:24px;background:rgba(8,18,41,.5)}
.notice h3{font-size:17px;margin-bottom:14px}
.notice li{position:relative;padding-left:24px;margin-bottom:11px;font-size:14.5px;color:var(--muted);line-height:1.6}
.notice li:last-child{margin-bottom:0}
.notice li::before{content:"\f00d";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:1px;font-size:11px;color:var(--danger)}

/* ---------- Reviews ---------- */
.review{padding:22px 24px;border-left:2px solid var(--line-strong);background:linear-gradient(90deg,rgba(56,189,248,.07),transparent 70%);border-radius:0 var(--r) var(--r) 0}
.review p{font-size:15px;color:#e2e8f0;margin-bottom:14px;line-height:1.7}
.review-meta{display:flex;align-items:center;gap:11px}
.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#2563eb,#38bdf8);color:#04121f;font-weight:800;font-size:13px}
.review-meta b{display:block;font-size:14px;color:#fff}
.review-meta span{font-size:12.5px;color:var(--dim)}
.stars{margin-left:auto;color:var(--gold);font-size:12px;letter-spacing:2px}

/* ---------- Category wall ---------- */
.cat-row{display:flex;align-items:center;gap:20px;padding:24px 26px;border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(95deg,rgba(148,197,253,.08),rgba(148,197,253,.02));transition:.25s}
.cat-row:hover{border-color:var(--line-strong);transform:translateX(4px);box-shadow:0 16px 34px rgba(2,8,23,.55)}
.cat-row i.cat-ico{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;background:rgba(37,99,235,.24);border:1px solid var(--line-strong);color:#7dd3fc;font-size:19px;flex-shrink:0}
.cat-body{flex:1;min-width:0}
.cat-body h3{font-size:17px;margin-bottom:5px;color:#fff}
.cat-body p{font-size:14px;margin:0}
.cat-arrow{color:var(--cyan);font-size:16px;flex-shrink:0}

/* ---------- News ---------- */
.news-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:28px;align-items:start}
.news-item{padding:0 0 20px;margin-bottom:20px;border-bottom:1px solid rgba(56,189,248,.13)}
.news-item:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.news-meta{display:block;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#7dd3fc;margin-bottom:8px}
.news-item h3{font-size:17.5px;margin-bottom:8px}
.news-item h3 a{color:#fff}
.news-item h3 a:hover{color:var(--cyan)}
.news-item p{font-size:14px;margin:0}
.side-panel{padding:22px;border:1px solid var(--line);border-radius:var(--r);background:rgba(8,18,41,.6)}
.side-panel h3{font-size:15px;letter-spacing:.04em;text-transform:uppercase;color:#9fd7ff;margin-bottom:16px}
.side-list li{padding:12px 0;border-bottom:1px dashed rgba(148,197,253,.16)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list a{font-size:14px;font-weight:600;color:#dbeafe;display:block;line-height:1.5}
.side-list a:hover{color:var(--cyan)}
.side-list span{font-size:12px;color:var(--dim)}
.empty{padding:26px;border:1px dashed rgba(56,189,248,.3);border-radius:var(--r);font-size:14.5px;color:var(--muted);text-align:center}
.more-row{margin-top:26px}

/* ---------- Metrics ---------- */
.metric{padding:24px 22px;border:1px solid var(--line);border-radius:var(--r);background:rgba(148,197,253,.04)}
.metric b{display:block;font-size:clamp(20px,2.3vw,28px);font-weight:800;color:#7dd3fc;letter-spacing:-.02em;margin-bottom:7px}
.metric span{font-size:13.5px;color:var(--muted);line-height:1.6;display:block}
.trust-row{display:flex;flex-wrap:wrap;gap:12px}
.trust-chip{display:inline-flex;align-items:center;gap:10px;font-size:13.5px;font-weight:600;color:#dbeafe;background:rgba(8,18,41,.7);border:1px solid var(--line);border-radius:var(--r-sm);padding:13px 18px;flex:1 1 190px}
.trust-chip i{color:var(--cyan);font-size:16px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.faq-item{border:1px solid var(--line);border-radius:var(--r-sm);background:rgba(148,197,253,.04);overflow:hidden;transition:.22s}
.faq-item[open]{border-color:var(--line-strong);background:rgba(148,197,253,.08)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;font-size:15px;font-weight:600;color:#e8f4ff;display:flex;gap:14px;align-items:flex-start;line-height:1.55}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\2b";margin-left:auto;color:var(--cyan);font-weight:700;font-size:16px;flex-shrink:0;transition:transform .2s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-ans{padding:0 20px 20px;font-size:14.5px;color:var(--muted);line-height:1.7}

/* ---------- CTA band ---------- */
.cta-band{position:relative;isolation:isolate;overflow:hidden;border-top:1px solid var(--line);padding:70px 0;text-align:center}
.cta-band .cta-bg{position:absolute;inset:0;z-index:-2;background-size:cover;background-position:center;opacity:.4}
.cta-band .cta-veil{position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(3,7,18,.92),rgba(8,18,41,.88))}
.cta-band h2{margin-bottom:14px}
.cta-band p{max-width:720px;margin:0 auto 26px;font-size:16px;color:#cbd5e1}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:22px}
.cta-notes{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}

/* ---------- Footer ---------- */
.site-footer{background:linear-gradient(180deg,#030712,#050b1c);border-top:1px solid var(--line);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:minmax(0,4.4fr) repeat(3,minmax(0,2.4fr));gap:34px;padding-bottom:34px;border-bottom:1px solid rgba(56,189,248,.14)}
.footer-brand p{font-size:14px;margin:16px 0 0;max-width:360px}
.footer-col h4{font-size:13px;letter-spacing:.13em;text-transform:uppercase;color:#9fd7ff;margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;padding-top:22px}
.footer-bottom p{font-size:13px;margin:0;color:var(--dim)}
.age-badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;color:#fecdd3;border:1px solid rgba(244,63,94,.45);background:rgba(244,63,94,.12);border-radius:999px;padding:6px 13px}

/* ---------- FAB ---------- */
.fab{position:fixed;left:16px;bottom:96px;z-index:50;display:inline-flex;align-items:center;gap:10px;min-height:56px;padding:0 20px;border-radius:999px;background:rgba(7,7,13,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid rgba(56,189,248,.55);box-shadow:0 0 20px rgba(6,182,212,.45);color:#e8f4ff;font-size:13.5px;font-weight:600;opacity:.8;transition:transform .22s ease,opacity .22s ease,box-shadow .22s ease;animation:fabPulse 3s ease-in-out infinite}
.fab:hover{opacity:1;transform:scale(1.05);color:#fff;box-shadow:0 0 34px rgba(6,182,212,.72)}
.fab:active{transform:scale(.95);border-color:#ec4899;box-shadow:0 0 24px rgba(236,72,153,.6)}
.fab i{color:#22d3ee;font-size:17px}
.fab .fab-dot{position:absolute;top:5px;right:11px;width:10px;height:10px;border-radius:50%;background:var(--danger);box-shadow:0 0 0 2px rgba(3,7,18,.95);animation:blink 1.1s infinite}
@keyframes fabPulse{0%,100%{box-shadow:0 0 18px rgba(6,182,212,.38)}50%{box-shadow:0 0 30px rgba(6,182,212,.66)}}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .main-nav{margin-left:6px}
  .nav-link{padding:9px 10px;font-size:13.8px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1024px){
  .nav-toggle{display:grid}
  .main-nav{position:absolute;top:74px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:4px;padding:12px 20px 20px;background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);box-shadow:0 22px 40px rgba(2,8,23,.7)}
  .main-nav.open{display:flex}
  .nav-link{padding:12px 14px;font-size:15px}
  .split,.split-rev{grid-template-columns:minmax(0,1fr);gap:30px}
  .poster-rail{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid rgba(56,189,248,.14)}
  .g-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-layout{grid-template-columns:minmax(0,1fr)}
  .tier-row{grid-template-columns:150px minmax(0,1fr);gap:14px}
  .tier-limit{text-align:left;grid-column:2}
  .tier-row.head{display:none}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .g-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .compare{grid-template-columns:minmax(0,1fr)}
  .compare-col.after{border-left:0;border-top:1px solid var(--line)}
  .faq-grid{grid-template-columns:minmax(0,1fr)}
  .header-actions{gap:8px}
  .btn-login{padding:9px 11px;font-size:13px}
  .btn-signup{padding:10px 15px;font-size:13px}
  .logo-text b{font-size:13px}
}
@media (max-width:520px){
  body{font-size:15px}
  .container{padding:0 16px}
  .hero{padding:48px 0 44px}
  .hero-lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .poster-rail{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .poster{height:160px}
  .poster .poster-label{font-size:11.5px;padding:22px 10px 10px}
  .stat-strip{grid-template-columns:minmax(0,1fr)}
  .stat-item{border-right:0;border-bottom:1px solid rgba(56,189,248,.14)}
  .stat-item:last-child{border-bottom:0}
  .g-2,.g-3,.g-4,.steps{grid-template-columns:minmax(0,1fr)}
  .why-item{grid-template-columns:44px minmax(0,1fr);gap:14px}
  .why-num{width:44px;height:44px;border-radius:12px;font-size:14px}
  .tier-row{grid-template-columns:minmax(0,1fr);padding:16px}
  .tier-limit{grid-column:1}
  .cat-row{flex-direction:column;align-items:flex-start;gap:14px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .fab{left:12px;bottom:84px;min-height:52px;padding:0 16px;font-size:12.5px}
  .logo-text span{display:none}
}

/* roulang page: article */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a35;
  --surface:rgba(148,197,253,.06);
  --surface-2:rgba(148,197,253,.11);
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563eb;
  --cyan:#38bdf8;
  --holo:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --dim:#64748b;
  --ok:#22c55e;
  --gold:#facc15;
  --danger:#f43f5e;
  --r-xs:8px;
  --r-sm:12px;
  --r:16px;
  --r-lg:24px;
  --max:1200px;
  --sh:0 18px 50px rgba(2,8,23,.6);
  --glow:0 0 22px rgba(56,189,248,.45);
  --glow-strong:0 0 34px rgba(6,182,212,.65);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:'Be Vietnam Pro','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden
}
body::before{content:"";position:fixed;inset:0;z-index:-3;background:
  radial-gradient(900px 520px at 12% -5%,rgba(37,99,235,.22),transparent 65%),
  radial-gradient(760px 460px at 92% 8%,rgba(6,182,212,.16),transparent 68%),
  linear-gradient(180deg,#030712 0%,#050b1c 45%,#030712 100%)}
img{max-width:100%;display:block;border:0}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7dd3fc}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{color:#fff;line-height:1.28;margin:0 0 14px;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(27px,4vw,42px);font-weight:800}
h2{font-size:clamp(22px,2.8vw,30px)}
h3{font-size:19px}
p{margin:0 0 16px}
ul,ol{margin:0 0 16px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.section{position:relative;padding:70px 0;border-top:1px solid rgba(56,189,248,.1)}
.section.tint{background:linear-gradient(180deg,rgba(8,18,41,.85),rgba(3,7,18,.15))}
.section-head{max-width:780px;margin-bottom:32px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#7dd3fc;background:rgba(37,99,235,.16);border:1px solid var(--line-strong);border-radius:999px;padding:6px 13px}
.lead{font-size:16.5px;color:#cbd5e1;max-width:820px;line-height:1.7}
.muted{color:var(--muted)}
.grid{display:grid;gap:18px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 24px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease;white-space:nowrap}
.btn-primary{background:linear-gradient(120deg,#2563eb,#38bdf8);color:#04121f;box-shadow:var(--glow);font-weight:700}
.btn-primary:hover{color:#04121f;transform:translateY(-2px);box-shadow:var(--glow-strong)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:rgba(148,197,253,.07);color:#e2f2ff;border-color:var(--line-strong)}
.btn-ghost:hover{background:rgba(56,189,248,.16);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}

/* Badges / tags */
.tag{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:#bae6fd;background:rgba(56,189,248,.1);border:1px solid var(--line);border-radius:999px;padding:6px 12px}
.badge-hot{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#04121f;background:linear-gradient(120deg,#facc15,#f59e0b);border-radius:999px;padding:4px 10px}
.badge-live{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#d1fae5;background:rgba(34,197,94,.16);border:1px solid rgba(34,197,94,.4);border-radius:999px;padding:4px 10px}
.badge-net{display:inline-flex;align-items:center;font-size:12px;font-weight:700;color:#e0f2fe;background:rgba(37,99,235,.24);border:1px solid var(--line-strong);border-radius:8px;padding:4px 9px}

/* Header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(3,7,18,.84);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:14px;height:74px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,#2563eb,#38bdf8);color:#04121f;font-weight:800;font-size:15px;box-shadow:var(--glow)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:14.5px;color:#fff;letter-spacing:-.01em}
.logo-text span{font-size:10.5px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{display:block;padding:10px 13px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--muted);border:1px solid transparent;transition:.2s}
.nav-link:hover{color:#fff;background:var(--surface)}
.nav-link.active{color:#e0f2fe;background:rgba(37,99,235,.22);border-color:var(--line-strong)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn-login{padding:10px 14px;font-size:14px;font-weight:600;color:#cbe6ff;border:1px solid var(--line);border-radius:10px;background:transparent;transition:.2s}
.btn-login:hover{color:#fff;border-color:var(--line-strong);background:var(--surface)}
.btn-signup{padding:11px 20px;font-size:14px;font-weight:700;color:#04121f;background:linear-gradient(120deg,#2563eb,#38bdf8);border-radius:10px;box-shadow:var(--glow);transition:.22s}
.btn-signup:hover{color:#04121f;transform:translateY(-1px);box-shadow:var(--glow-strong)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:11px;background:var(--surface);border:1px solid var(--line);color:#cbe6ff;place-items:center;font-size:17px}

/* Article hero */
.article-hero{position:relative;isolation:isolate;padding:52px 0 46px;border-bottom:1px solid var(--line);overflow:hidden}
.article-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:-2;opacity:.4}
.article-hero-overlay{position:absolute;inset:0;z-index:-1;background:
  linear-gradient(105deg,rgba(3,7,18,.97) 0%,rgba(3,7,18,.9) 46%,rgba(8,18,41,.72) 100%),
  radial-gradient(820px 440px at 84% 6%,rgba(6,182,212,.28),transparent 70%)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:18px}
.breadcrumb a{color:#9fd7f5}
.breadcrumb i{font-size:10px;opacity:.6}
.article-hero h1{max-width:920px;margin:14px 0 16px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:13.5px;color:var(--muted);margin-bottom:20px}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--cyan)}
.article-hero .lead{max-width:860px;font-size:17px;color:#cbd5e1}

/* Key points */
.glass-card{background:linear-gradient(160deg,rgba(148,197,253,.11),rgba(8,18,41,.55));border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 26px 20px;box-shadow:var(--sh);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.keypoints{margin-top:34px;display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:start}
.keypoints h2{font-size:22px}
.keypoints ul{list-style:none;padding:0;margin:0}
.keypoints li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed rgba(56,189,248,.16);color:#cbd5e1;font-size:15px}
.keypoints li:last-child{border-bottom:0}
.keypoints li i{color:var(--cyan);margin-top:4px;font-size:14px}
.stat-strip{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.stat-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 16px 14px}
.stat-box b{display:block;font-size:22px;color:#7dd3fc;font-weight:800;letter-spacing:-.02em}
.stat-box span{font-size:12.5px;color:var(--muted);line-height:1.5;display:block;margin-top:4px}

/* Article body */
.article-wrap{display:block}
.article-body{max-width:840px}
.article-body h2{font-size:clamp(21px,2.4vw,27px);margin:36px 0 14px;padding-left:14px;border-left:3px solid var(--cyan)}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19px;margin:26px 0 10px;color:#e0f2fe}
.article-body p{color:#cbd5e1;line-height:1.75;margin-bottom:18px}
.article-body ul,.article-body ol{padding-left:22px;color:#cbd5e1}
.article-body li{margin-bottom:10px;line-height:1.7}
.article-body strong{color:#fff}
.article-body img{border-radius:var(--r);margin:22px 0;border:1px solid var(--line)}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.article-body blockquote{margin:24px 0;padding:16px 20px;border-left:3px solid var(--cyan);background:var(--surface);border-radius:0 var(--r-sm) var(--r-sm) 0;color:#dbeafe}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:rgba(37,99,235,.18);color:#e0f2fe}
.notice{background:rgba(244,63,94,.1);border:1px solid rgba(244,63,94,.35);border-radius:var(--r);padding:20px 22px;color:#ffe4e6}
.notice h2{margin-top:0;border:0;padding-left:0;font-size:20px;color:#fff}
.notice a{color:#fecdd3;text-decoration:underline}

/* Table block */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:rgba(8,18,41,.5)}
table.cmp{width:100%;border-collapse:collapse;min-width:680px;font-size:14.5px}
table.cmp th,table.cmp td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(56,189,248,.12)}
table.cmp thead th{background:rgba(37,99,235,.2);color:#e0f2fe;font-size:13px;text-transform:uppercase;letter-spacing:.06em;font-weight:700}
table.cmp tbody tr:hover{background:rgba(56,189,248,.07)}
table.cmp td:first-child{color:#fff;font-weight:600}
table.cmp .ok{color:#86efac;font-weight:600}
table.cmp .mid{color:#fde68a;font-weight:600}

/* Tiers */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tier-card{background:linear-gradient(170deg,rgba(148,197,253,.1),rgba(3,7,18,.5));border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.tier-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow)}
.tier-card .t-name{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#7dd3fc;font-weight:700}
.tier-card h3{margin:8px 0 6px;font-size:19px}
.tier-card dl{margin:0;font-size:14px;color:#cbd5e1}
.tier-card dt{font-size:12px;color:var(--dim);letter-spacing:.05em;text-transform:uppercase;margin-top:12px}
.tier-card dd{margin:2px 0 0;color:#e2f2ff;font-weight:600}

/* Safety list */
.safe-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.safe-list li{display:flex;gap:14px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 18px 16px;transition:border-color .2s ease,transform .2s ease}
.safe-list li:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.safe-list .num{flex:0 0 34px;height:34px;border-radius:10px;display:grid;place-items:center;background:rgba(37,99,235,.24);border:1px solid var(--line-strong);color:#bae6fd;font-weight:700;font-size:14px}
.safe-list b{display:block;color:#fff;font-size:15.5px;margin-bottom:4px}
.safe-list p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
.step{position:relative;padding:24px 20px 20px;border-radius:var(--r);background:rgba(8,18,41,.6);border:1px solid var(--line)}
.step::before{counter-increment:step;content:counter(step);position:absolute;top:-15px;left:20px;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#2563eb,#38bdf8);color:#04121f;font-weight:800;font-size:14px;box-shadow:var(--glow)}
.step h3{font-size:16.5px;margin:14px 0 8px}
.step p{margin:0;font-size:14px;color:var(--muted);line-height:1.65}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{border:1px solid var(--line);border-radius:var(--r);background:rgba(8,18,41,.55);overflow:hidden;transition:border-color .2s ease}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--glow)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 52px 18px 20px;position:relative;color:#f1f5f9;font-weight:600;font-size:15.5px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--cyan);font-size:13px;transition:transform .25s ease}
.faq-item[open] summary::after{content:"\f068"}
.faq-item .faq-body{padding:0 20px 20px;color:#cbd5e1;font-size:15px;line-height:1.75}

/* Category matrix */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cat-card{display:block;background:linear-gradient(165deg,rgba(148,197,253,.1),rgba(3,7,18,.55));border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.cat-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow);color:inherit}
.cat-card i.cat-ico{font-size:18px;color:var(--cyan)}
.cat-card h3{margin:12px 0 8px;font-size:18px;color:#fff}
.cat-card p{margin:0 0 14px;font-size:14px;color:var(--muted)}
.cat-card .more{font-size:13.5px;font-weight:700;color:#7dd3fc;display:inline-flex;align-items:center;gap:8px}

/* CTA band */
.cta-band{display:grid;grid-template-columns:1.35fr .65fr;gap:28px;align-items:center;background:linear-gradient(120deg,rgba(37,99,235,.26),rgba(6,182,212,.12));border:1px solid var(--line-strong);border-radius:var(--r-lg);padding:34px 32px;box-shadow:var(--sh)}
.cta-band h2{margin-bottom:12px}
.cta-band p{color:#dbeafe;margin-bottom:0}
.cta-actions{display:flex;flex-direction:column;gap:12px}

/* FAB */
.fab{position:fixed;left:16px;bottom:96px;z-index:50;width:58px;height:58px;border-radius:18px;display:grid;place-items:center;font-size:20px;color:#e0f2fe;background:rgba(7,7,13,.8);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid transparent;box-shadow:0 0 20px rgba(6,182,212,.45);transition:transform .2s ease,box-shadow .25s ease,opacity .25s ease;opacity:.8}
.fab::before{content:"";position:absolute;inset:-1px;border-radius:19px;padding:1px;background:linear-gradient(135deg,#a3e635,#06b6d4);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.fab:hover{opacity:1;transform:scale(1.08);box-shadow:0 0 30px rgba(6,182,212,.7);color:#fff}
.fab:active{transform:scale(.95)}
.fab .fab-dot{position:absolute;top:8px;right:10px;width:8px;height:8px;border-radius:50%;background:#f43f5e;box-shadow:0 0 8px rgba(244,63,94,.9);animation:pulseDot 1.6s infinite}
@keyframes pulseDot{0%,100%{opacity:1}50%{opacity:.35}}

/* Footer */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(8,18,41,.7),rgba(3,7,18,.98));padding:56px 0 26px;margin-top:10px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px;padding-bottom:34px;border-bottom:1px solid rgba(56,189,248,.12)}
.footer-brand p{margin:16px 0 0;font-size:14px;color:var(--muted);max-width:380px;line-height:1.7}
.footer-col h4{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:#bae6fd;margin-bottom:14px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding-top:22px}
.footer-bottom p{margin:0;font-size:13px;color:var(--dim)}
.age-badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:#fecdd3;background:rgba(244,63,94,.12);border:1px solid rgba(244,63,94,.35);border-radius:999px;padding:6px 12px}

/* Responsive */
@media (max-width:1024px){
  .main-nav{position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;margin:0;padding:12px 20px 18px;background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);display:none}
  .main-nav.open{display:flex}
  .nav-toggle{display:grid}
  .keypoints{grid-template-columns:1fr}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr}
}
@media (max-width:768px){
  .section{padding:54px 0}
  .article-hero{padding:40px 0 36px}
  .header-inner{height:66px;gap:10px}
  .logo-text b{font-size:13px}
  .logo-text span{font-size:9.5px}
  .logo-mark{width:36px;height:36px;border-radius:11px}
  .main-nav{top:66px}
  .btn-login,.btn-signup{padding:9px 13px;font-size:13px}
  .safe-list{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr 1fr}
  .cta-band{padding:26px 20px}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .header-actions{gap:7px}
  .logo-text span{display:none}
  .tier-grid,.steps,.cat-grid,.footer-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .article-meta{gap:8px 14px;font-size:13px}
  .btn{width:100%}
  .cta-actions .btn{width:100%}
  .fab{left:12px;bottom:84px;width:54px;height:54px}
}

/* roulang page: category1 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a35;
  --surface:rgba(148,197,253,.06);
  --surface-2:rgba(148,197,253,.11);
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563eb;
  --cyan:#38bdf8;
  --holo:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --dim:#64748b;
  --ok:#22c55e;
  --gold:#facc15;
  --danger:#f43f5e;
  --r-xs:8px;
  --r-sm:12px;
  --r:16px;
  --r-lg:24px;
  --max:1200px;
  --sh:0 18px 50px rgba(2,8,23,.6);
  --glow:0 0 22px rgba(56,189,248,.45);
  --glow-strong:0 0 34px rgba(6,182,212,.65);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Be Vietnam Pro','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-3;background:
  radial-gradient(900px 520px at 12% -5%,rgba(37,99,235,.22),transparent 65%),
  radial-gradient(760px 460px at 92% 8%,rgba(6,182,212,.16),transparent 68%),
  linear-gradient(180deg,#030712 0%,#050b1c 45%,#030712 100%)}
img{max-width:100%;display:block;border:0}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7dd3fc}
button{font:inherit;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.28;color:#fff}
h1{font-size:clamp(27px,3.6vw,42px)}
h2{font-size:clamp(22px,2.5vw,31px)}
h3{font-size:17.5px}
h4{font-size:15px}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.section{position:relative;padding:72px 0;border-top:1px solid rgba(56,189,248,.1)}
.section.tint{background:linear-gradient(180deg,rgba(8,18,41,.85),rgba(3,7,18,.15))}
.section-head{max-width:820px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{margin:14px 0 12px}
.eyebrow{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#7dd3fc;background:rgba(37,99,235,.16);border:1px solid var(--line-strong);border-radius:999px;padding:6px 13px}
.lead{font-size:16.5px;color:#cbd5e1;max-width:840px}
.muted{color:var(--muted)}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 24px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease;white-space:nowrap}
.btn-primary{background:linear-gradient(120deg,#2563eb,#38bdf8);color:#04121f;box-shadow:var(--glow);font-weight:700}
.btn-primary:hover{color:#04121f;transform:translateY(-2px);box-shadow:var(--glow-strong)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:rgba(148,197,253,.07);color:#e2f2ff;border-color:var(--line-strong)}
.btn-ghost:hover{background:rgba(56,189,248,.16);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn:focus-visible,.nav-link:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.tag{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:#bae6fd;background:rgba(56,189,248,.1);border:1px solid var(--line);border-radius:999px;padding:6px 12px}
.badge-hot{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#04121f;background:linear-gradient(120deg,#facc15,#f59e0b);border-radius:999px;padding:4px 10px}
.badge-live{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#d1fae5;background:rgba(34,197,94,.16);border:1px solid rgba(34,197,94,.4);border-radius:999px;padding:4px 10px}
.card{position:relative;background:linear-gradient(160deg,rgba(148,197,253,.09),rgba(148,197,253,.025));border:1px solid var(--line);border-radius:var(--r);padding:22px;transition:transform .22s ease,border-color .22s ease,box-shadow .25s ease}
.card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--sh)}
.card h3{margin-bottom:9px}
.card p{color:var(--muted);font-size:14.6px}
.card-ico{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;background:rgba(37,99,235,.2);border:1px solid var(--line-strong);color:#bae6fd;font-size:18px;margin-bottom:14px}
.card-num{font-family:'Be Vietnam Pro',monospace;font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--dim)}
/* Header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(3,7,18,.84);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:14px;height:74px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,#2563eb,#38bdf8);color:#04121f;font-weight:800;font-size:15px;box-shadow:var(--glow)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:14.5px;color:#fff;letter-spacing:-.01em}
.logo-text span{font-size:10.5px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{display:block;padding:10px 13px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--muted);border:1px solid transparent;transition:.2s}
.nav-link:hover{color:#fff;background:var(--surface)}
.nav-link.active{color:#e0f2fe;background:rgba(37,99,235,.22);border-color:var(--line-strong)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn-login{padding:10px 14px;font-size:14px;font-weight:600;color:#cbe6ff;border:1px solid var(--line);border-radius:10px;background:transparent;transition:.2s}
.btn-login:hover{color:#fff;border-color:var(--line-strong);background:var(--surface)}
.btn-signup{padding:11px 20px;font-size:14px;font-weight:700;color:#04121f;background:linear-gradient(120deg,#2563eb,#38bdf8);border-radius:10px;box-shadow:var(--glow);transition:.22s}
.btn-signup:hover{color:#04121f;transform:translateY(-1px);box-shadow:var(--glow-strong)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:11px;background:var(--surface);border:1px solid var(--line);color:#cbe6ff;place-items:center;font-size:17px}
/* Hero bento */
.hero{position:relative;isolation:isolate;padding:56px 0 52px;border-bottom:1px solid var(--line);overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:-2;opacity:.6}
.hero-overlay{position:absolute;inset:0;z-index:-1;background:
  linear-gradient(112deg,rgba(3,7,18,.97) 0%,rgba(3,7,18,.9) 46%,rgba(8,18,41,.7) 100%),
  radial-gradient(880px 460px at 82% 6%,rgba(37,99,235,.38),transparent 70%)}
.bento{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:18px;align-items:stretch}
.bento-main{background:linear-gradient(155deg,rgba(148,197,253,.1),rgba(3,7,18,.5));border:1px solid var(--line);border-radius:var(--r-lg);padding:32px}
.bento-main h1{margin:16px 0 14px}
.bento-side{display:grid;gap:18px;align-content:start}
.bento-mini{background:linear-gradient(160deg,rgba(148,197,253,.12),rgba(3,7,18,.55));border:1px solid var(--line);border-radius:var(--r);padding:20px;backdrop-filter:blur(10px)}
.bento-mini .mini-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.bento-mini strong{display:block;font-size:24px;font-weight:800;color:#fff;letter-spacing:-.02em}
.bento-mini p{font-size:13.6px;color:var(--muted);margin:6px 0 0}
.hero-lead{font-size:16.8px;color:#cbd5e1;max-width:720px;margin-bottom:24px;line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px}
.pay-row{display:flex;flex-wrap:wrap;gap:9px;align-items:center;margin-top:20px}
.pay-row .pay-label{font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.pay-chip{font-size:12.5px;font-weight:600;color:#e2f2ff;background:rgba(3,7,18,.6);border:1px solid var(--line);border-radius:9px;padding:6px 11px}
.cta-strip{margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;background:linear-gradient(115deg,rgba(37,99,235,.28),rgba(6,182,212,.14));border:1px solid var(--line-strong);border-radius:var(--r);padding:18px 22px;box-shadow:var(--glow)}
.cta-strip p{margin:0;font-size:15px;color:#e2f2ff;font-weight:500}
/* Problem list */
.problem-list{display:grid;gap:14px}
.problem-item{display:grid;grid-template-columns:52px minmax(0,1fr);gap:16px;align-items:start;background:rgba(8,18,41,.5);border:1px solid var(--line);border-left:3px solid var(--danger);border-radius:var(--r-sm);padding:18px 20px}
.problem-item .pi-ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:rgba(244,63,94,.12);border:1px solid rgba(244,63,94,.35);color:#fda4af;font-size:20px}
.problem-item h3{margin-bottom:6px}
.problem-item p{color:var(--muted);font-size:14.6px}
/* Steps */
.steps{display:grid;gap:16px;grid-template-columns:repeat(4,minmax(0,1fr));counter-reset:st}
.step{position:relative;background:linear-gradient(160deg,rgba(148,197,253,.09),rgba(148,197,253,.02));border:1px solid var(--line);border-radius:var(--r);padding:24px 20px 22px}
.step::before{counter-increment:st;content:"0" counter(st);display:block;font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--cyan);margin-bottom:12px}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14.4px;margin:0}
/* Stats */
.stats{display:grid;gap:16px;grid-template-columns:repeat(5,minmax(0,1fr));margin-bottom:28px}
.stat{background:rgba(8,18,41,.55);border:1px solid var(--line);border-radius:var(--r);padding:20px;text-align:left}
.stat b{display:block;font-size:26px;font-weight:800;color:#fff;letter-spacing:-.02em}
.stat span{display:block;font-size:13.2px;color:var(--muted);margin-top:6px;line-height:1.5}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:rgba(8,18,41,.45)}
table.net{width:100%;min-width:620px;border-collapse:collapse}
table.net th,table.net td{padding:14px 16px;text-align:left;font-size:14.4px;border-bottom:1px solid rgba(56,189,248,.12)}
table.net th{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#7dd3fc;background:rgba(37,99,235,.14);font-weight:600}
table.net td{color:#d7e3f4}
table.net tr:last-child td{border-bottom:0}
table.net td b{color:#fff}
/* Quotes */
.quote{background:linear-gradient(160deg,rgba(148,197,253,.09),rgba(148,197,253,.02));border:1px solid var(--line);border-radius:var(--r);padding:24px}
.quote .q-star{color:var(--gold);font-size:13px;letter-spacing:.2em;margin-bottom:12px}
.quote p{font-size:15px;color:#dbe6f5;font-style:italic}
.quote .q-who{display:flex;align-items:center;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid rgba(56,189,248,.14)}
.quote .q-ava{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#2563eb,#38bdf8);color:#04121f;font-weight:700;font-size:14px}
.quote .q-who b{display:block;font-size:14.4px;color:#fff}
.quote .q-who span{font-size:12.6px;color:var(--muted)}
/* Audience */
.aud{display:grid;gap:12px;grid-template-columns:repeat(3,minmax(0,1fr))}
.aud-item{display:flex;gap:13px;align-items:flex-start;padding:17px 18px;border:1px solid var(--line);border-radius:var(--r-sm);background:rgba(8,18,41,.42);transition:.22s}
.aud-item:hover{border-color:var(--line-strong);background:rgba(37,99,235,.12)}
.aud-item i{color:var(--cyan);font-size:16px;margin-top:3px}
.aud-item b{display:block;font-size:14.8px;color:#fff;margin-bottom:5px}
.aud-item span{font-size:13.8px;color:var(--muted);line-height:1.55}
/* FAQ */
.faq{display:grid;gap:12px;max-width:940px}
.faq details{border:1px solid var(--line);border-radius:var(--r-sm);background:rgba(8,18,41,.45);padding:0;transition:.22s}
.faq details[open]{border-color:var(--line-strong);background:rgba(37,99,235,.1)}
.faq summary{cursor:pointer;list-style:none;padding:17px 20px;font-size:15.4px;font-weight:600;color:#e8f2ff;display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--cyan);transition:transform .22s}
.faq details[open] summary::after{transform:rotate(180deg)}
.faq .faq-body{padding:0 20px 18px;color:var(--muted);font-size:14.6px}
/* News */
.news-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(272px,1fr))}
.news-card{display:flex;flex-direction:column;background:linear-gradient(160deg,rgba(148,197,253,.09),rgba(148,197,253,.02));border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .22s ease,border-color .22s ease,box-shadow .25s ease}
.news-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--sh)}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:#081229}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:16px;line-height:1.45}
.news-body h3 a{color:#fff}
.news-body h3 a:hover{color:var(--cyan)}
.news-body p{font-size:13.8px;color:var(--muted);margin:0}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;font-size:12.2px;color:var(--dim);text-transform:none}
.news-meta span{display:inline-flex;align-items:center;gap:6px}
/* CTA band */
.cta-band{background:linear-gradient(120deg,rgba(37,99,235,.32),rgba(6,182,212,.16));border:1px solid var(--line-strong);border-radius:var(--r-lg);padding:36px;box-shadow:var(--glow);display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:24px;align-items:center}
.cta-band h2{margin-bottom:12px}
.cta-band p{color:#dbeafe;font-size:15.4px;margin:0}
.cta-band .cta-acts{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
/* Footer */
.site-footer{background:linear-gradient(180deg,rgba(3,7,18,.6),rgba(8,18,41,.9));border-top:1px solid var(--line);padding:56px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:32px;padding-bottom:32px;border-bottom:1px solid rgba(56,189,248,.14)}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14.2px;color:var(--muted);max-width:420px}
.footer-col h4{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:#7dd3fc;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.2px;color:#c7d5e8}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;padding-top:22px}
.footer-bottom p{font-size:13px;color:var(--dim);margin:0}
.age-badge{display:inline-flex;align-items:center;gap:8px;font-size:12.2px;font-weight:600;color:#fecdd3;background:rgba(244,63,94,.12);border:1px solid rgba(244,63,94,.35);border-radius:999px;padding:6px 13px}
/* FAB */
.fab{position:fixed;left:16px;bottom:96px;z-index:50;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;color:#e0f2fe;font-size:20px;
  background:linear-gradient(rgba(7,15,30,.86),rgba(7,15,30,.86)) padding-box,linear-gradient(135deg,#38bdf8,#2563eb) border-box;
  border:1px solid transparent;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 0 20px rgba(6,182,212,.45);opacity:.86;transition:transform .2s ease,opacity .2s ease,box-shadow .25s ease}
.fab:hover{opacity:1;transform:scale(1.08);color:#fff;box-shadow:0 0 30px rgba(56,189,248,.72)}
.fab:active{transform:scale(.94)}
.fab .fab-dot{position:absolute;top:3px;right:3px;width:11px;height:11px;border-radius:50%;background:#f43f5e;box-shadow:0 0 0 2px rgba(3,7,18,.9);animation:fabPulse 1.7s infinite}
@keyframes fabPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(1.22)}}
/* Responsive */
@media (max-width:1080px){
  .bento{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr}
  .cta-band .cta-acts{justify-content:flex-start}
}
@media (max-width:900px){
  .nav-toggle{display:grid}
  .main-nav{position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;gap:6px;margin:0;padding:14px 20px 20px;background:rgba(3,7,18,.98);border-bottom:1px solid var(--line);box-shadow:0 22px 40px rgba(2,8,23,.7);display:none}
  .main-nav.open{display:flex}
  .nav-link{padding:12px 14px}
  .grid-3,.grid-4,.aud{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .section{padding:54px 0}
  .bento-main{padding:24px}
  .grid-2,.grid-3,.grid-4,.steps,.aud{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-strip{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:520px){
  .header-inner{height:66px;gap:8px}
  .logo-text b{font-size:12.5px}
  .logo-text span{font-size:9.5px}
  .btn-login{padding:9px 10px;font-size:13px}
  .btn-signup{padding:10px 14px;font-size:13px}
  .stats{grid-template-columns:1fr}
  .cta-band{padding:24px}
  .fab{width:52px;height:52px;bottom:88px;font-size:18px}
  .problem-item{grid-template-columns:1fr;gap:10px}
}

/* roulang page: category2 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a35;
  --surface:rgba(148,197,253,.06);
  --surface-2:rgba(148,197,253,.11);
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563eb;
  --cyan:#38bdf8;
  --holo:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --dim:#64748b;
  --ok:#22c55e;
  --gold:#facc15;
  --danger:#f43f5e;
  --r-xs:8px;
  --r-sm:12px;
  --r:16px;
  --r-lg:24px;
  --max:1200px;
  --sh:0 18px 50px rgba(2,8,23,.6);
  --glow:0 0 22px rgba(56,189,248,.45);
  --glow-strong:0 0 34px rgba(6,182,212,.65);
}
/* ===== base / reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Be Vietnam Pro','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;line-height:1.66;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-3;background:
  radial-gradient(900px 520px at 12% -5%,rgba(37,99,235,.22),transparent 65%),
  radial-gradient(760px 460px at 92% 8%,rgba(6,182,212,.16),transparent 68%),
  linear-gradient(180deg,#030712 0%,#050b1c 45%,#030712 100%)}
img{max-width:100%;display:block;border:0;height:auto}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7dd3fc}
button{font:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font:inherit}
h1,h2,h3,h4{margin:0 0 12px;line-height:1.26;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(26px,3.6vw,42px)}
h2{font-size:clamp(22px,2.7vw,31px)}
h3{font-size:clamp(16.5px,1.6vw,19.5px)}
p{margin:0 0 14px}
ul,ol{margin:0;padding:0;list-style:none}
strong{color:#e6f3ff}
::selection{background:rgba(56,189,248,.35);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.anchor{display:block;position:relative;top:-96px;visibility:hidden;height:0}
/* ===== layout ===== */
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.section{position:relative;padding:74px 0;border-top:1px solid rgba(56,189,248,.1)}
.section.tint{background:linear-gradient(180deg,rgba(8,18,41,.85),rgba(3,7,18,.15))}
.section-head{max-width:800px;margin-bottom:34px}
.section-head h2{margin-top:14px}
.eyebrow{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#7dd3fc;background:rgba(37,99,235,.16);border:1px solid var(--line-strong);border-radius:999px;padding:6px 13px}
.lead{font-size:16.5px;color:#cbd5e1;max-width:860px;line-height:1.7}
.muted{color:var(--muted)}
.split{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:36px;align-items:center}
.split-media img{border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh)}
/* ===== buttons & badges ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 24px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease;white-space:nowrap}
.btn-primary{background:linear-gradient(120deg,#2563eb,#38bdf8);color:#04121f;box-shadow:var(--glow);font-weight:700}
.btn-primary:hover{color:#04121f;transform:translateY(-2px);box-shadow:var(--glow-strong)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:rgba(148,197,253,.07);color:#e2f2ff;border-color:var(--line-strong)}
.btn-ghost:hover{background:rgba(56,189,248,.16);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-block{width:100%}
.tag{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:#bae6fd;background:rgba(56,189,248,.1);border:1px solid var(--line);border-radius:999px;padding:6px 12px}
.badge-hot{display:inline-flex;align-items:center;gap:7px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#04121f;background:linear-gradient(120deg,#facc15,#f59e0b);border-radius:999px;padding:5px 11px}
.badge-live{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#d1fae5;background:rgba(34,197,94,.16);border:1px solid rgba(34,197,94,.4);border-radius:999px;padding:5px 11px}
/* ===== header ===== */
.site-header{position:sticky;top:0;z-index:60;background:rgba(3,7,18,.84);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:14px;height:74px;position:relative}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,#2563eb,#38bdf8);color:#04121f;font-weight:800;font-size:17px;box-shadow:var(--glow)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:14.5px;color:#fff}
.logo-text span{font-size:10.5px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{display:block;padding:10px 13px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--muted);border:1px solid transparent;transition:.2s}
.nav-link:hover{color:#fff;background:var(--surface)}
.nav-link.active{color:#e0f2fe;background:rgba(37,99,235,.22);border-color:var(--line-strong)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn-login{padding:10px 14px;font-size:14px;font-weight:600;color:#cbe6ff;border:1px solid var(--line);border-radius:10px;background:transparent;transition:.2s}
.btn-login:hover{color:#fff;border-color:var(--line-strong);background:var(--surface)}
.btn-signup{padding:11px 20px;font-size:14px;font-weight:700;color:#04121f;background:linear-gradient(120deg,#2563eb,#38bdf8);border-radius:10px;box-shadow:var(--glow);transition:.22s}
.btn-signup:hover{color:#04121f;transform:translateY(-1px);box-shadow:var(--glow-strong)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:11px;background:var(--surface);border:1px solid var(--line);color:#cbe6ff;place-items:center;font-size:17px}
/* ===== hero ===== */
.hero{position:relative;isolation:isolate;padding:64px 0 62px;border-bottom:1px solid var(--line);overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:-2;opacity:.5}
.hero-overlay{position:absolute;inset:0;z-index:-1;background:
  linear-gradient(112deg,rgba(3,7,18,.97) 0%,rgba(3,7,18,.89) 45%,rgba(8,18,41,.72) 100%),
  radial-gradient(880px 460px at 82% 8%,rgba(37,99,235,.38),transparent 70%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.9fr);gap:38px;align-items:start}
.hero-copy h1{margin:18px 0 16px;max-width:22ch}
.hero-lead{font-size:17px;color:#cbd5e1;max-width:720px;margin-bottom:24px;line-height:1.72}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:22px}
.pay-row{display:flex;flex-wrap:wrap;gap:9px;align-items:center}
.pay-row .pay-label{font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.pay-chip{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;color:#dbeafe;background:rgba(148,197,253,.09);border:1px solid var(--line);border-radius:9px;padding:6px 11px}
.apply-panel{position:relative;padding:26px 24px;border-radius:var(--r-lg);border:1px solid var(--line-strong);background:linear-gradient(165deg,rgba(37,99,235,.22),rgba(8,18,41,.75));backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--sh)}
.apply-panel h2{font-size:21px;margin:14px 0 10px}
.panel-lead{font-size:14.5px;color:#c3d7ee;margin-bottom:16px}
.check-list{display:grid;gap:10px;margin:0 0 18px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#dbeafe}
.check-list li i{color:var(--ok);margin-top:4px;font-size:14px}
.panel-note{display:flex;gap:9px;align-items:center;font-size:12.5px;color:var(--muted);margin:14px 0 0}
.panel-note i{color:var(--cyan)}
/* ===== risk list ===== */
.risk-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.risk-item{display:flex;gap:13px;align-items:flex-start;padding:18px 18px 16px;border:1px solid var(--line);border-left:3px solid var(--danger);border-radius:var(--r-sm);background:linear-gradient(150deg,rgba(244,63,94,.07),rgba(8,18,41,.4));transition:transform .2s ease,border-color .2s ease}
.risk-item:hover{transform:translateY(-3px);border-color:rgba(244,63,94,.45)}
.risk-item i{color:#fb7185;font-size:16px;margin-top:4px}
.risk-item p{margin:0;font-size:14.8px;color:#d5e3f3}
/* ===== criteria ===== */
.crit-list{display:grid;gap:16px}
.crit-item{display:grid;grid-template-columns:46px minmax(0,1fr);gap:15px;padding:18px;border-radius:var(--r);border:1px solid var(--line);background:linear-gradient(150deg,rgba(148,197,253,.08),rgba(8,18,41,.42));transition:transform .2s ease,border-color .2s ease,box-shadow .25s ease}
.crit-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:0 12px 34px rgba(2,8,23,.55)}
.crit-icon{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:rgba(37,99,235,.24);border:1px solid var(--line-strong);color:#bae6fd;font-size:17px}
.crit-item h3{font-size:16.5px;margin-bottom:6px}
.crit-item p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.64}
/* ===== steps ===== */
.step-list{display:grid;gap:14px;counter-reset:step}
.step-item{display:grid;grid-template-columns:58px minmax(0,1fr);gap:18px;align-items:start;padding:20px;border-radius:var(--r);border:1px solid var(--line);background:linear-gradient(140deg,rgba(8,18,41,.72),rgba(11,26,53,.5));transition:border-color .2s ease,transform .2s ease}
.step-item:hover{border-color:var(--line-strong);transform:translateX(3px)}
.step-num{width:58px;height:58px;border-radius:17px;display:grid;place-items:center;font-weight:800;font-size:19px;color:#04121f;background:linear-gradient(135deg,#38bdf8,#2563eb);box-shadow:var(--glow)}
.step-item h3{margin-bottom:6px;font-size:17px}
.step-item p{margin:0;color:var(--muted);font-size:14.7px}
/* ===== stats ===== */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.stat-card{padding:22px 20px;border-radius:var(--r);border:1px solid var(--line);background:linear-gradient(160deg,rgba(37,99,235,.16),rgba(3,7,18,.6));transition:transform .2s ease,box-shadow .25s ease}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--glow)}
.stat-value{font-size:28px;font-weight:800;color:#e0f2fe;letter-spacing:-.02em;line-height:1.2}
.stat-label{font-size:13.5px;color:var(--muted);margin-top:8px;line-height:1.55}
.note-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}
.note-box{padding:20px;border-radius:var(--r);border:1px solid var(--line);background:rgba(148,197,253,.05)}
.note-box h3{font-size:16px;display:flex;align-items:center;gap:9px}
.note-box h3 i{color:var(--cyan)}
.note-box p{margin:0;font-size:14.5px;color:var(--muted)}
/* ===== quotes ===== */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.quote-card{padding:22px;border-radius:var(--r);border:1px solid var(--line);background:linear-gradient(155deg,rgba(148,197,253,.09),rgba(8,18,41,.48));display:flex;flex-direction:column;gap:12px;transition:transform .2s ease,border-color .2s ease}
.quote-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.stars{color:var(--gold);font-size:12.5px;letter-spacing:2px}
.quote-card p{margin:0;font-size:14.8px;color:#dbe7f5;line-height:1.68;flex:1}
.quote-name{font-size:13.5px;font-weight:600;color:#bae6fd}
.quote-role{font-size:12.5px;color:var(--dim)}
/* ===== audience ===== */
.audience-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.audience-item{display:grid;grid-template-columns:44px minmax(0,1fr);gap:14px;padding:18px;border-radius:var(--r);border:1px solid var(--line);background:rgba(148,197,253,.05);transition:background .2s ease,border-color .2s ease}
.audience-item:hover{background:rgba(148,197,253,.1);border-color:var(--line-strong)}
.audience-item i{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:rgba(6,182,212,.16);border:1px solid var(--line);color:#67e8f9;font-size:16px}
.audience-item h3{font-size:16px;margin-bottom:5px}
.audience-item p{margin:0;font-size:14.3px;color:var(--muted)}
/* ===== news ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.news-card{display:flex;flex-direction:column;gap:10px;padding:20px;border-radius:var(--r);border:1px solid var(--line);background:linear-gradient(160deg,rgba(8,18,41,.82),rgba(11,26,53,.5));transition:transform .2s ease,border-color .2s ease,box-shadow .25s ease}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 14px 36px rgba(2,8,23,.6)}
.news-cat{align-self:flex-start;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#7dd3fc;background:rgba(37,99,235,.18);border:1px solid var(--line);border-radius:999px;padding:4px 10px}
.news-card h3{font-size:16.5px;margin:2px 0 0;line-height:1.42}
.news-card h3 a{color:#eaf4ff}
.news-card h3 a:hover{color:var(--cyan)}
.news-exc{margin:0;font-size:14.3px;color:var(--muted);flex:1}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:4px;padding-top:12px;border-top:1px solid rgba(56,189,248,.14);font-size:12.5px;color:var(--dim)}
.news-more{font-size:13px;font-weight:600;color:var(--cyan);display:inline-flex;align-items:center;gap:7px}
.news-empty{padding:24px;border-radius:var(--r);border:1px dashed var(--line-strong);color:var(--muted);font-size:14.5px;background:rgba(148,197,253,.04)}
/* ===== faq ===== */
.faq-list{display:grid;gap:12px;max-width:940px}
.faq-item details{border:1px solid var(--line);border-radius:var(--r);background:rgba(148,197,253,.045);transition:border-color .2s ease,box-shadow .25s ease}
.faq-item details:hover{border-color:var(--line-strong)}
.faq-item details[open]{border-color:var(--line-strong);box-shadow:0 12px 30px rgba(2,8,23,.5)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 54px 18px 20px;font-weight:600;font-size:16px;color:#e6f3ff;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--cyan);font-size:21px;line-height:1;font-weight:600}
.faq-item details[open] summary::after{content:"–"}
.faq-body{padding:0 20px 18px;color:#c3d2e3;font-size:14.8px;line-height:1.7}
.faq-body p{margin:0}
/* ===== cta ===== */
.cta-band{position:relative;isolation:isolate;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line-strong);padding:48px 40px;text-align:center;background:linear-gradient(140deg,rgba(37,99,235,.32),rgba(6,182,212,.16))}
.cta-band .cta-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.22;z-index:-1}
.cta-band h2{max-width:760px;margin:0 auto 14px}
.cta-band p{max-width:720px;margin:0 auto 24px;color:#cbd5e1}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cta-note{margin-top:18px;font-size:12.5px;color:var(--muted)}
/* ===== footer ===== */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(8,18,41,.7),rgba(3,7,18,.96));padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.72;margin:16px 0 0;max-width:420px}
.footer-col h4{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:#bae6fd;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:14.5px}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-top:38px;padding-top:20px;border-top:1px solid rgba(56,189,248,.14)}
.footer-bottom p{margin:0;font-size:13px;color:var(--dim)}
.age-badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:#fde68a;background:rgba(250,204,21,.1);border:1px solid rgba(250,204,21,.35);border-radius:999px;padding:6px 12px}
/* ===== fab ===== */
.fab{position:fixed;left:16px;bottom:96px;z-index:50;display:inline-flex;align-items:center;gap:10px;min-height:56px;padding:12px 18px;border-radius:999px;color:#e6f3ff;font-size:14px;font-weight:600;background:rgba(7,7,13,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(34,211,238,.55);box-shadow:0 0 20px rgba(6,182,212,.45);opacity:.85;transition:transform .22s ease,opacity .22s ease,box-shadow .25s ease;animation:fabFloat 4.5s ease-in-out infinite}
.fab i{font-size:17px;color:#67e8f9;animation:fabFlicker 3.4s infinite}
.fab:hover{opacity:1;transform:scale(1.06);box-shadow:0 0 32px rgba(6,182,212,.7)}
.fab:active{transform:scale(.96)}
.fab-badge{position:absolute;top:6px;right:10px;width:9px;height:9px;border-radius:50%;background:#ec4899;box-shadow:0 0 10px #ec4899;animation:pulseDot 1.5s infinite}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@keyframes fabFlicker{0%,92%,100%{opacity:1}94%{opacity:.35}96%{opacity:1}}
@keyframes pulseDot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(1.35)}}
/* ===== responsive ===== */
@media (max-width:1024px){
  .header-inner{height:68px;gap:10px}
  .main-nav{position:absolute;top:calc(100% + 12px);left:0;right:0;margin:0;flex-direction:column;align-items:stretch;gap:3px;padding:14px;background:rgba(4,10,24,.985);border:1px solid var(--line-strong);border-radius:var(--r);box-shadow:var(--sh);display:none}
  .main-nav.open{display:flex}
  .nav-link{padding:12px 14px;font-size:15px}
  .nav-toggle{display:grid}
  .hero{padding:52px 0 50px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .hero-copy h1{max-width:none}
  .split{grid-template-columns:minmax(0,1fr);gap:26px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quote-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .risk-list{grid-template-columns:minmax(0,1fr)}
  .audience-grid{grid-template-columns:minmax(0,1fr)}
  .note-row{grid-template-columns:minmax(0,1fr)}
  .quote-grid{grid-template-columns:minmax(0,1fr)}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:36px 22px}
  .btn-login{padding:9px 11px;font-size:13px}
  .btn-signup{padding:10px 15px;font-size:13.5px}
  .logo-text b{font-size:13.5px}
}
@media (max-width:520px){
  .container{padding:0 15px}
  .header-inner{height:62px;gap:8px}
  .logo-mark{width:34px;height:34px;border-radius:11px;font-size:15px}
  .logo-text b{font-size:12.5px}
  .logo-text span{font-size:9.5px;letter-spacing:.06em}
  .btn-login{display:inline-flex;padding:8px 10px;font-size:12.5px}
  .btn-signup{padding:9px 13px;font-size:13px}
  .nav-toggle{width:40px;height:40px;font-size:16px}
  .hero{padding:44px 0 44px}
  .hero-copy h1{font-size:25px}
  .hero-lead{font-size:15.5px}
  .apply-panel{padding:22px 18px}
  .stat-grid{grid-template-columns:minmax(0,1fr)}
  .step-item{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:16px}
  .step-num{width:44px;height:44px;border-radius:13px;font-size:16px}
  .footer-grid{grid-template-columns:1fr}
  .fab{padding:0;width:56px;height:56px;justify-content:center;bottom:88px;left:14px}
  .fab span.fab-text{display:none}
  .fab-badge{right:8px}
}

/* roulang page: category3 */
:root{
  --bg:#030712;
  --bg-2:#081229;
  --bg-3:#0b1a35;
  --surface:rgba(148,197,253,.06);
  --surface-2:rgba(148,197,253,.11);
  --line:rgba(56,189,248,.18);
  --line-strong:rgba(56,189,248,.42);
  --blue:#2563eb;
  --cyan:#38bdf8;
  --holo:#60a5fa;
  --text:#f8fafc;
  --muted:#94a3b8;
  --dim:#64748b;
  --ok:#22c55e;
  --gold:#facc15;
  --danger:#f43f5e;
  --r-xs:8px;
  --r-sm:12px;
  --r:16px;
  --r-lg:24px;
  --max:1200px;
  --sh:0 18px 50px rgba(2,8,23,.6);
  --glow:0 0 22px rgba(56,189,248,.45);
  --glow-strong:0 0 34px rgba(6,182,212,.65);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Be Vietnam Pro','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-3;background:
  radial-gradient(900px 520px at 12% -5%,rgba(37,99,235,.22),transparent 65%),
  radial-gradient(760px 460px at 92% 8%,rgba(6,182,212,.16),transparent 68%),
  linear-gradient(180deg,#030712 0%,#050b1c 45%,#030712 100%)}
img{max-width:100%;display:block;border:0}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7dd3fc}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.25;font-weight:800;letter-spacing:-.015em;color:#fff}
h1{font-size:clamp(28px,3.6vw,44px)}
h2{font-size:clamp(23px,2.6vw,32px)}
h3{font-size:18px;font-weight:700}
p{margin:0 0 14px}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.section{position:relative;padding:74px 0;border-top:1px solid rgba(56,189,248,.1)}
.section.tint{background:linear-gradient(180deg,rgba(8,18,41,.85),rgba(3,7,18,.15))}
.section-head{max-width:800px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#7dd3fc;background:rgba(37,99,235,.16);border:1px solid var(--line-strong);border-radius:999px;padding:6px 13px;margin-bottom:14px}
.lead{font-size:16.5px;color:#cbd5e1;max-width:840px;line-height:1.7}
.muted{color:var(--muted)}
.grid{display:grid;gap:18px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 24px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease;white-space:nowrap}
.btn-primary{background:linear-gradient(120deg,#2563eb,#38bdf8);color:#04121f;box-shadow:var(--glow);font-weight:700}
.btn-primary:hover{color:#04121f;transform:translateY(-2px);box-shadow:var(--glow-strong)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:rgba(148,197,253,.07);color:#e2f2ff;border-color:var(--line-strong)}
.btn-ghost:hover{background:rgba(56,189,248,.16);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.tag{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:#bae6fd;background:rgba(56,189,248,.1);border:1px solid var(--line);border-radius:999px;padding:6px 12px}
.badge-hot{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#04121f;background:linear-gradient(120deg,#facc15,#f59e0b);border-radius:999px;padding:4px 10px}
.badge-live{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#d1fae5;background:rgba(34,197,94,.16);border:1px solid rgba(34,197,94,.4);border-radius:999px;padding:4px 10px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(3,7,18,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:14px;height:74px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,#2563eb,#38bdf8);color:#04121f;font-weight:800;font-size:15px;box-shadow:var(--glow)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:14.5px;color:#fff;letter-spacing:-.01em}
.logo-text span{font-size:10.5px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{display:block;padding:10px 13px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--muted);border:1px solid transparent;transition:.2s}
.nav-link:hover{color:#fff;background:var(--surface)}
.nav-link.active{color:#e0f2fe;background:rgba(37,99,235,.22);border-color:var(--line-strong)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn-login{padding:10px 14px;font-size:14px;font-weight:600;color:#cbe6ff;border:1px solid var(--line);border-radius:10px;background:transparent;transition:.2s}
.btn-login:hover{color:#fff;border-color:var(--line-strong);background:var(--surface)}
.btn-signup{padding:11px 20px;font-size:14px;font-weight:700;color:#04121f;background:linear-gradient(120deg,#2563eb,#38bdf8);border-radius:10px;box-shadow:var(--glow);transition:.22s}
.btn-signup:hover{color:#04121f;transform:translateY(-1px);box-shadow:var(--glow-strong)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:11px;background:var(--surface);border:1px solid var(--line);color:#cbe6ff;place-items:center;font-size:17px}

/* ---------- Hero (magazine split) ---------- */
.hero{position:relative;isolation:isolate;padding:62px 0 56px;border-bottom:1px solid var(--line);overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:-2;opacity:.55}
.hero-overlay{position:absolute;inset:0;z-index:-1;background:
  linear-gradient(108deg,rgba(3,7,18,.97) 0%,rgba(3,7,18,.9) 46%,rgba(8,18,41,.72) 100%),
  radial-gradient(880px 460px at 82% 6%,rgba(37,99,235,.4),transparent 70%)}
.hero-grid{display:grid;grid-template-columns:1.3fr .82fr;gap:34px;align-items:start}
.hero-copy{padding-top:6px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--dim);margin-bottom:16px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:#fff}
.crumb i{font-size:9px;color:var(--dim)}
.hero-copy h1{margin:0 0 16px;max-width:660px}
.hero-lead{font-size:16.5px;color:#cbd5e1;max-width:640px;margin-bottom:24px;line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:22px}
.pay-row{display:flex;flex-wrap:wrap;gap:9px;align-items:center}
.pay-label{font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.pay-badge{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:#dbeafe;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xs);padding:7px 12px}
.pay-badge i{color:var(--cyan)}
.hero-card{background:linear-gradient(180deg,rgba(148,197,253,.11),rgba(3,7,18,.5));border:1px solid var(--line-strong);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh)}
.hero-card figure{margin:0;position:relative}
.hero-card figure img{width:100%;height:196px;object-fit:cover;opacity:.9}
.hero-card figcaption{position:absolute;left:14px;bottom:12px;font-size:11.5px;font-weight:600;color:#e0f2fe;background:rgba(3,7,18,.72);border:1px solid var(--line);border-radius:999px;padding:5px 11px}
.hero-card-body{padding:20px}
.hero-card-body h2{font-size:17px;margin-bottom:6px}
.hero-card-body p{font-size:13.5px;color:var(--muted);margin-bottom:16px}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat{background:rgba(3,7,18,.55);border:1px solid var(--line);border-radius:var(--r-sm);padding:11px 10px;text-align:left}
.stat b{display:block;font-size:16px;color:#7dd3fc;font-variant-numeric:tabular-nums}
.stat span{font-size:11px;color:var(--dim);line-height:1.4;display:block}

/* ---------- Tier cards ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tier-card{position:relative;background:linear-gradient(180deg,rgba(148,197,253,.09),rgba(3,7,18,.45));border:1px solid var(--line);border-radius:var(--r);padding:20px;transition:transform .2s ease,border-color .2s ease,box-shadow .25s ease}
.tier-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 26px rgba(56,189,248,.22)}
.tier-card.feature{border-color:rgba(250,204,21,.42);background:linear-gradient(180deg,rgba(250,204,21,.12),rgba(3,7,18,.5))}
.tier-name{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}
.tier-name strong{font-size:15px;color:#fff}
.tier-limit{font-size:22px;font-weight:800;color:#7dd3fc;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.tier-limit small{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:0}
.tier-bar{height:6px;border-radius:999px;background:rgba(148,197,253,.14);margin:12px 0 14px;overflow:hidden}
.tier-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#2563eb,#38bdf8)}
.tier-card.feature .tier-fill{background:linear-gradient(90deg,#facc15,#f59e0b)}
.tier-list li{font-size:13.5px;color:#cbd5e1;padding-left:18px;position:relative;margin-bottom:7px;line-height:1.55}
.tier-list li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;font-size:10px;color:var(--cyan);position:absolute;left:0;top:5px}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
.step{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--cyan);border-radius:var(--r-sm);padding:20px}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,#2563eb,#38bdf8);color:#04121f;font-weight:800;font-size:14px;margin-bottom:12px}
.step h3{font-size:15.5px;margin-bottom:7px}
.step p{font-size:13.8px;color:var(--muted);margin:0;line-height:1.6}

/* ---------- Scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.scene-card{background:rgba(3,7,18,.5);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .2s ease,border-color .2s ease}
.scene-card:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.scene-card img{width:100%;height:158px;object-fit:cover}
.scene-body{padding:18px}
.scene-body h3{font-size:16px;margin-bottom:8px}
.scene-body p{font-size:13.8px;color:var(--muted);margin:0;line-height:1.62}

/* ---------- Chain list ---------- */
.chain-list{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(3,7,18,.42)}
.chain-row{display:grid;grid-template-columns:1.1fr 1fr 1fr 1.15fr;gap:14px;padding:15px 20px;border-bottom:1px solid rgba(56,189,248,.12);align-items:center}
.chain-row:last-child{border-bottom:0}
.chain-row.head{background:rgba(37,99,235,.14);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:#93c5fd;font-weight:700}
.chain-row span{font-size:14px;color:#e2e8f0}
.chain-row span.strong{font-weight:700;color:#fff}
.chain-row span.good{color:#86efac;font-weight:600}
.chain-row span.note{font-size:13.2px;color:var(--muted)}

/* ---------- Checklist ---------- */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 26px}
.check-item{display:flex;gap:13px;align-items:flex-start;padding:15px 0;border-bottom:1px dashed rgba(56,189,248,.18)}
.check-item i{flex:0 0 30px;height:30px;border-radius:9px;display:grid;place-items:center;background:rgba(34,197,94,.14);color:#86efac;border:1px solid rgba(34,197,94,.35);font-size:12px}
.check-item i.warn{background:rgba(250,204,21,.12);color:var(--gold);border-color:rgba(250,204,21,.35)}
.check-item strong{display:block;font-size:15px;color:#fff;margin-bottom:3px}
.check-item p{margin:0;font-size:13.6px;color:var(--muted);line-height:1.6}

/* ---------- Voices ---------- */
.voices{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.voice{background:linear-gradient(180deg,rgba(148,197,253,.08),rgba(3,7,18,.4));border:1px solid var(--line);border-radius:var(--r);padding:22px}
.voice p{font-size:14.2px;color:#dbe3ee;line-height:1.68}
.who{display:flex;align-items:center;gap:11px;margin-top:14px;padding-top:14px;border-top:1px solid rgba(56,189,248,.16)}
.who span.av{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#2563eb,#38bdf8);color:#04121f;font-weight:800;font-size:13px}
.who b{display:block;font-size:14px;color:#fff}
.who small{font-size:12px;color:var(--dim)}

/* ---------- News ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{display:flex;flex-direction:column;background:rgba(3,7,18,.5);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .2s ease,border-color .2s ease,box-shadow .22s ease;color:inherit}
.news-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:0 0 24px rgba(56,189,248,.2);color:inherit}
.news-card img{width:100%;height:152px;object-fit:cover}
.news-body{padding:17px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:11.8px;color:var(--dim);margin-bottom:9px}
.news-meta i{color:var(--cyan);margin-right:4px}
.news-body h3{font-size:15.5px;margin-bottom:8px;line-height:1.45}
.news-body p{font-size:13.4px;color:var(--muted);margin:0;line-height:1.6}
.news-more{margin-top:12px;font-size:13px;font-weight:600;color:var(--cyan)}
.list-empty{padding:26px;border:1px dashed var(--line-strong);border-radius:var(--r);color:var(--muted);font-size:14.5px;text-align:center}

/* ---------- FAQ ---------- */
.faq{max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:var(--r-sm);background:rgba(3,7,18,.45);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease}
.faq-item[open]{border-color:var(--line-strong);background:rgba(37,99,235,.1)}
.faq-item summary{cursor:pointer;list-style:none;padding:17px 52px 17px 20px;font-size:15.5px;font-weight:600;color:#e6f3ff;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--cyan);font-size:13px}
.faq-item[open] summary::after{content:"\f068"}
.faq-item p{padding:0 20px 18px;margin:0;font-size:14.4px;color:#cbd5e1;line-height:1.68}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border:1px solid var(--line-strong);border-radius:var(--r-lg);padding:44px 38px;background:
  radial-gradient(620px 320px at 88% 10%,rgba(37,99,235,.4),transparent 70%),
  linear-gradient(125deg,rgba(8,18,41,.96),rgba(3,7,18,.9))}
.cta-grid{display:grid;grid-template-columns:1.35fr .8fr;gap:28px;align-items:center}
.cta-band h2{margin-bottom:12px}
.cta-band p{color:#cbd5e1;font-size:15.2px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-note{font-size:12.6px;color:var(--dim);margin-top:12px}

/* ---------- FAB ---------- */
.fab{position:fixed;left:16px;bottom:96px;z-index:50;width:58px;height:58px;border-radius:18px;display:grid;place-items:center;
  background:rgba(7,7,13,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:2px solid transparent;background-clip:padding-box;color:#7dd3fc;
  box-shadow:0 0 20px rgba(6,182,212,.45);opacity:.78;transition:transform .22s ease,opacity .22s ease,box-shadow .22s ease}
.fab::before{content:"";position:absolute;inset:-2px;border-radius:20px;padding:2px;background:linear-gradient(135deg,#a3e635,#06b6d4);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;animation:fabPulse 2.6s ease-in-out infinite}
.fab i{font-size:21px}
.fab:hover{opacity:1;transform:scale(1.09);box-shadow:0 0 30px rgba(6,182,212,.75);color:#a3e635}
.fab:active{transform:scale(.94) translateY(2px);color:#ec4899}
.fab .dot{position:absolute;top:-3px;right:-3px;width:13px;height:13px;border-radius:50%;background:#f43f5e;box-shadow:0 0 0 2px #030712;animation:fabBlink 1.4s infinite}
@keyframes fabPulse{0%,100%{opacity:.6}50%{opacity:1}}
@keyframes fabBlink{0%,100%{opacity:1}50%{opacity:.25}}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(8,18,41,.8),rgba(3,7,18,.98));padding:58px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{font-size:13.8px;color:var(--muted);margin-top:16px;line-height:1.7;max-width:400px}
.footer-col h4{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:#93c5fd;margin-bottom:15px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13.8px;color:var(--muted)}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;margin-top:38px;padding-top:20px;border-top:1px solid rgba(56,189,248,.14)}
.footer-bottom p{margin:0;font-size:12.6px;color:var(--dim)}
.age-badge{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;color:#fecdd3;background:rgba(244,63,94,.12);border:1px solid rgba(244,63,94,.35);border-radius:999px;padding:6px 12px}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .hero-grid{grid-template-columns:1fr;gap:26px}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .scene-grid,.voices,.news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-grid{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:1024px){
  .main-nav{position:fixed;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;margin:0;padding:14px 20px 20px;
    background:rgba(3,7,18,.98);border-bottom:1px solid var(--line-strong);backdrop-filter:blur(16px);
    transform:translateY(-140%);transition:transform .28s ease;max-height:calc(100vh - 74px);overflow-y:auto}
  .main-nav.open{transform:translateY(0)}
  .nav-link{padding:13px 14px;font-size:15px}
  .nav-toggle{display:grid}
  .btn-login{padding:9px 12px;font-size:13.4px}
  .btn-signup{padding:10px 15px;font-size:13.4px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .hero{padding:46px 0 44px}
  .header-inner{height:66px}
  .main-nav{top:66px}
  .tier-grid,.steps,.scene-grid,.voices,.news-grid{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .chain-row{grid-template-columns:1fr 1fr;gap:8px 14px;padding:14px 16px}
  .chain-row.head{display:none}
  .chain-row span.note{grid-column:1 / -1}
  .cta-band{padding:30px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo-text b{font-size:13px}
  .logo-text span{font-size:9.5px}
  .btn{padding:12px 18px;font-size:14.2px}
  .hero-actions .btn{width:100%}
  .stat-row{grid-template-columns:1fr 1fr}
  .fab{width:54px;height:54px;bottom:84px;left:14px;border-radius:16px}
}