/* roulang page: index */
:root{
--bg:#030712;
--bg-soft:#081229;
--panel:rgba(12,20,40,.72);
--panel-strong:rgba(10,18,38,.94);
--line:rgba(56,189,248,.18);
--line-strong:rgba(56,189,248,.42);
--blue:#2563EB;
--blue-bright:#38BDF8;
--holo:#60A5FA;
--text:#F8FAFC;
--muted:#94A3B8;
--muted-2:#64748B;
--radius-lg:20px;
--radius-md:14px;
--radius-sm:10px;
--shadow-glow:0 0 24px rgba(37,99,235,.35);
--shadow-card:0 18px 40px -22px rgba(2,8,23,.95);
--font:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
margin:0;
font-family:var(--font);
background:var(--bg);
color:var(--text);
line-height:1.65;
-webkit-font-smoothing:antialiased;
font-size:16px;
overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-bright);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--holo)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--blue-bright);outline-offset:3px;border-radius:6px}
.container{max-width:1180px}
.section{padding:76px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.65),rgba(3,7,18,.2))}
.section-head{margin-bottom:40px}
.eyebrow{
display:inline-flex;align-items:center;gap:8px;
font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
color:var(--blue-bright);background:rgba(37,99,235,.12);
border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-title{
font-size:clamp(1.5rem,2.6vw,2.1rem);
font-weight:800;letter-spacing:-.02em;margin:0 0 14px;line-height:1.25;
}
.section-title span{color:var(--blue-bright)}
.section-desc{color:var(--muted);max-width:760px;margin:0;font-size:1rem;line-height:1.7}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}

/* HEADER */
.site-header{
position:sticky;top:0;z-index:1030;
background:rgba(3,7,18,.82);
backdrop-filter:blur(14px);
border-bottom:1px solid var(--line);
}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);font-weight:800;letter-spacing:-.02em;max-width:340px}
.brand:hover{color:var(--text)}
.brand-mark{
width:42px;height:42px;flex:0 0 42px;border-radius:13px;
display:grid;place-items:center;font-size:1.05rem;
background:linear-gradient(140deg,var(--blue),var(--blue-bright));
box-shadow:var(--shadow-glow);color:#04122b;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-bright)}
.brand-text strong{font-size:.92rem;font-weight:700}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.nav-links a{
display:inline-block;padding:9px 14px;border-radius:10px;
color:var(--muted);font-size:.9rem;font-weight:600;
transition:all .2s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(37,99,235,.14)}
.nav-links a.active{color:var(--blue-bright);background:rgba(37,99,235,.18);border:1px solid var(--line)}
.nav-cta{display:flex;align-items:center;gap:10px}
.btn-login{
padding:9px 16px;border-radius:10px;font-size:.88rem;font-weight:700;
color:var(--blue-bright);background:transparent;border:1px solid var(--line-strong);
transition:all .2s ease;white-space:nowrap;
}
.btn-login:hover{color:var(--text);border-color:var(--blue-bright);background:rgba(37,99,235,.12)}
.btn-signup{
padding:10px 20px;border-radius:11px;font-size:.88rem;font-weight:800;
color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));
border:none;box-shadow:var(--shadow-glow);transition:all .22s ease;white-space:nowrap;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(56,189,248,.55)}
.nav-toggle{
display:none;background:rgba(37,99,235,.14);border:1px solid var(--line);
color:var(--text);width:44px;height:44px;border-radius:12px;font-size:1.05rem;
}
.mobile-drawer{
display:none;border-top:1px solid var(--line);background:var(--panel-strong);
padding:10px 0 18px;
}
.mobile-drawer.open{display:block}
.mobile-drawer ul{list-style:none;margin:0;padding:0}
.mobile-drawer a{
display:block;padding:12px 6px;color:var(--muted);font-weight:600;
border-bottom:1px solid rgba(148,163,184,.08);
}
.mobile-drawer a.active{color:var(--blue-bright)}

/* BUTTONS */
.btn-primary-glow{
display:inline-flex;align-items:center;gap:10px;
padding:14px 28px;border-radius:13px;font-weight:800;font-size:.95rem;
color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));
border:none;box-shadow:var(--shadow-glow);transition:all .22s ease;
}
.btn-primary-glow:hover{color:#04122b;transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.6)}
.btn-ghost{
display:inline-flex;align-items:center;gap:10px;
padding:13px 26px;border-radius:13px;font-weight:700;font-size:.95rem;
color:var(--blue-bright);background:rgba(37,99,235,.08);
border:1px solid var(--line-strong);transition:all .22s ease;
}
.btn-ghost:hover{color:var(--text);border-color:var(--blue-bright);background:rgba(37,99,235,.18)}

/* HERO */
.hero{
position:relative;overflow:hidden;padding:70px 0 84px;
background:linear-gradient(180deg,rgba(3,7,18,.55),rgba(3,7,18,.96)),url('/assets/images/0575dc4afc1d9c75.jpg') center/cover no-repeat;
border-bottom:1px solid var(--line);
}
.hero::after{
content:"";position:absolute;inset:0;
background:radial-gradient(700px 380px at 82% 8%,rgba(56,189,248,.18),transparent 68%);
pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero-badge{
display:inline-flex;align-items:center;gap:9px;
padding:7px 16px;border-radius:999px;font-size:.75rem;font-weight:700;
letter-spacing:.1em;text-transform:uppercase;
color:var(--blue-bright);background:rgba(37,99,235,.14);border:1px solid var(--line-strong);
margin-bottom:20px;
}
.hero h1{
font-size:clamp(1.7rem,3.5vw,2.85rem);
font-weight:800;letter-spacing:-.03em;line-height:1.2;margin:0 0 18px;
}
.hero h1 em{font-style:normal;color:var(--blue-bright)}
.hero-lead{color:var(--muted);font-size:1.02rem;max-width:640px;margin-bottom:26px;line-height:1.72}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px}
.hero-stat strong{display:block;font-size:1.5rem;font-weight:800;color:var(--text)}
.hero-stat span{font-size:.8rem;color:var(--muted-2);text-transform:uppercase;letter-spacing:.08em;font-weight:600}
.countdown-panel{
background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
padding:26px;backdrop-filter:blur(16px);box-shadow:var(--shadow-card);
}
.countdown-title{font-size:.8rem;text-transform:uppercase;letter-spacing:.14em;color:var(--blue-bright);font-weight:700;margin-bottom:14px}
.countdown-ring{
width:150px;height:150px;margin:0 auto 20px;border-radius:50%;
display:grid;place-items:center;position:relative;
background:conic-gradient(var(--blue-bright) 0 72%,rgba(37,99,235,.16) 72% 100%);
}
.countdown-ring::before{content:"";position:absolute;inset:11px;border-radius:50%;background:var(--panel-strong)}
.countdown-ring .inner{position:relative;text-align:center}
.countdown-ring .inner strong{display:block;font-size:1.65rem;font-weight:800;color:var(--blue-bright);line-height:1}
.countdown-ring .inner span{font-size:.7rem;color:var(--muted-2);text-transform:uppercase;letter-spacing:.1em}
.countdown-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:11px}
.countdown-list li{display:flex;gap:11px;align-items:flex-start;color:var(--muted);font-size:.9rem}
.countdown-list i{color:var(--blue-bright);margin-top:3px}

/* GLASS CARD */
.glass{
background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
padding:26px;backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.glass:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 30px -8px rgba(56,189,248,.4)}
.glass h3{font-size:1.08rem;font-weight:700;margin:14px 0 10px;letter-spacing:-.01em}
.glass p{color:var(--muted);font-size:.92rem;margin:0;line-height:1.68}
.glass-icon{
width:50px;height:50px;border-radius:14px;display:grid;place-items:center;
font-size:1.2rem;color:var(--blue-bright);
background:rgba(37,99,235,.14);border:1px solid var(--line);
}
.tag{
display:inline-block;padding:4px 12px;border-radius:999px;font-size:.72rem;font-weight:700;
color:var(--blue-bright);background:rgba(37,99,235,.14);border:1px solid var(--line);
}
.tag-hot{color:#fca5a5;background:rgba(239,68,68,.12);border-color:rgba(239,68,68,.35)}

/* CATEGORY WALL */
.cat-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-card{
position:relative;overflow:hidden;border-radius:var(--radius-lg);
border:1px solid var(--line);padding:30px 26px;
background:var(--panel-strong);backdrop-filter:blur(12px);
display:flex;flex-direction:column;gap:12px;
transition:transform .25s ease,border-color .25s ease;
}
.cat-card:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.cat-card i.cat-ico{font-size:1.5rem;color:var(--blue-bright)}
.cat-card h3{font-size:1.1rem;font-weight:800;margin:0}
.cat-card p{color:var(--muted);font-size:.9rem;margin:0;line-height:1.66}
.cat-card .cat-link{font-size:.85rem;font-weight:700;color:var(--blue-bright);display:inline-flex;align-items:center;gap:8px;margin-top:auto}

/* FEATURE LIST ROW */
.feature-row{
display:flex;gap:20px;align-items:flex-start;
padding:22px 0;border-bottom:1px solid rgba(148,163,184,.1);
}
.feature-row:last-child{border-bottom:none}
.feature-num{
flex:0 0 46px;width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
font-weight:800;color:var(--blue-bright);background:rgba(37,99,235,.12);border:1px solid var(--line);
}
.feature-row h4{font-size:1.02rem;font-weight:700;margin:0 0 7px}
.feature-row p{color:var(--muted);font-size:.9rem;margin:0;line-height:1.66}

/* APP CARDS */
.app-cover{
border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line);
aspect-ratio:16/10;background:var(--bg-soft);
}
.app-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.glass:hover .app-cover img{transform:scale(1.05)}

/* STEPS */
.step-track{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.step-track::before{
content:"";position:absolute;top:24px;left:5%;right:5%;height:1px;
background:linear-gradient(90deg,transparent,var(--line-strong),transparent);z-index:0;
}
.step-item{position:relative;z-index:1;text-align:left}
.step-dot{
width:48px;height:48px;border-radius:50%;display:grid;place-items:center;
font-weight:800;color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));
box-shadow:var(--shadow-glow);margin-bottom:14px;
}
.step-item h4{font-size:.98rem;font-weight:700;margin:0 0 8px}
.step-item p{color:var(--muted);font-size:.87rem;margin:0;line-height:1.62}

/* NEWS LIST */
.news-col{display:grid;gap:14px}
.news-item{
display:flex;gap:16px;padding:14px;border-radius:var(--radius-md);
border:1px solid var(--line);background:var(--panel);
transition:border-color .22s ease,transform .22s ease;align-items:center;
}
.news-item:hover{border-color:var(--line-strong);transform:translateX(4px)}
.news-thumb{flex:0 0 92px;width:92px;height:66px;border-radius:10px;overflow:hidden;background:var(--bg-soft)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body h4{font-size:.95rem;font-weight:700;margin:0 0 6px;line-height:1.45}
.news-body h4 a{color:var(--text)}
.news-body h4 a:hover{color:var(--blue-bright)}
.news-meta{font-size:.76rem;color:var(--muted-2);display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.news-meta i{color:var(--blue-bright)}
.news-excerpt{color:var(--muted);font-size:.83rem;margin:6px 0 0;line-height:1.55}
.empty-note{color:var(--muted);font-size:.9rem;padding:20px;border:1px dashed var(--line);border-radius:var(--radius-md);text-align:center}

/* SIDEBAR RECOMMEND */
.side-panel{
background:var(--panel-strong);border:1px solid var(--line);
border-radius:var(--radius-lg);padding:22px;backdrop-filter:blur(14px);
}
.side-panel h3{font-size:1rem;font-weight:800;margin:0 0 16px;letter-spacing:-.01em}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.side-list li{padding-bottom:12px;border-bottom:1px solid rgba(148,163,184,.1)}
.side-list li:last-child{border-bottom:none;padding-bottom:0}
.side-list a{color:var(--text);font-size:.88rem;font-weight:600;line-height:1.5;display:block}
.side-list a:hover{color:var(--blue-bright)}
.side-list span{font-size:.74rem;color:var(--muted-2)}

/* BADGES ROW */
.badge-row{display:flex;flex-wrap:wrap;gap:12px}
.pay-badge{
display:inline-flex;align-items:center;gap:9px;
padding:11px 18px;border-radius:12px;font-size:.86rem;font-weight:700;
color:var(--text);background:var(--panel);border:1px solid var(--line);
transition:border-color .22s ease;white-space:nowrap;
}
.pay-badge:hover{border-color:var(--line-strong)}
.pay-badge i{color:var(--blue-bright)}

/* COMPARE */
.compare-table{width:100%;border-collapse:separate;border-spacing:0 10px}
.compare-table th{
font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;
color:var(--muted-2);font-weight:700;text-align:left;padding:0 18px 6px;
}
.compare-table td{
background:var(--panel);padding:16px 18px;color:var(--muted);font-size:.9rem;
border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.compare-table td:first-child{border-left:1px solid var(--line);border-radius:12px 0 0 12px;color:var(--text);font-weight:600}
.compare-table td:last-child{border-right:1px solid var(--line);border-radius:0 12px 12px 0}
.compare-table tr.best td{background:rgba(37,99,235,.16);border-color:var(--line-strong)}

/* REVIEW */
.review-card{
background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
padding:24px;height:100%;display:flex;flex-direction:column;gap:14px;
}
.review-stars{color:#facc15;font-size:.85rem;letter-spacing:2px}
.review-card p{color:var(--muted);font-size:.9rem;margin:0;line-height:1.66;flex:1}
.review-user{display:flex;align-items:center;gap:12px}
.review-avatar{
width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
font-weight:800;color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));
}
.review-user strong{display:block;font-size:.88rem}
.review-user span{font-size:.75rem;color:var(--muted-2)}

/* TRUST BAR */
.trust-strip{
display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
padding:28px;border-radius:var(--radius-lg);
background:linear-gradient(120deg,rgba(37,99,235,.14),rgba(56,189,248,.06));
border:1px solid var(--line);
}
.trust-item{display:flex;gap:14px;align-items:flex-start}
.trust-item i{font-size:1.25rem;color:var(--blue-bright);margin-top:3px}
.trust-item strong{display:block;font-size:.92rem;margin-bottom:4px}
.trust-item span{font-size:.82rem;color:var(--muted)}

/* FAQ */
.faq-item{
border:1px solid var(--line);border-radius:var(--radius-md);
background:var(--panel);margin-bottom:12px;overflow:hidden;
}
.faq-q{
width:100%;text-align:left;background:transparent;border:none;color:var(--text);
padding:18px 22px;font-size:.96rem;font-weight:700;display:flex;justify-content:space-between;
align-items:center;gap:16px;cursor:pointer;transition:background .2s ease;
}
.faq-q:hover{background:rgba(37,99,235,.08)}
.faq-q i{color:var(--blue-bright);transition:transform .25s ease}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--muted);font-size:.9rem;line-height:1.7}
.faq-item.open .faq-a{max-height:320px}
.faq-a p{padding:0 22px 20px;margin:0}

/* CTA BAND */
.cta-band{
border-radius:var(--radius-lg);padding:46px 40px;position:relative;overflow:hidden;
background:linear-gradient(120deg,rgba(37,99,235,.28),rgba(56,189,248,.12)),url('/assets/images/0962d10107f3f77b.jpg') center/cover no-repeat;
border:1px solid var(--line-strong);
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:800;margin:0 0 14px;letter-spacing:-.02em}
.cta-band p{color:#dbeafe;max-width:620px;margin:0 0 24px;font-size:.98rem;line-height:1.7}

/* STICKY BOTTOM */
.sticky-cta{
position:fixed;left:0;right:0;bottom:0;z-index:1040;
background:rgba(3,7,18,.92);backdrop-filter:blur(14px);
border-top:1px solid var(--line-strong);padding:12px 0;
display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.sticky-cta p{margin:0;color:var(--muted);font-size:.86rem}
.sticky-cta p strong{color:var(--text)}

/* FAB */
.fab{
position:fixed;left:16px;bottom:96px;z-index:1050;
width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
font-size:1.3rem;color:#04122b;
background:linear-gradient(135deg,var(--blue-bright),var(--blue));
border:2px solid rgba(56,189,248,.6);
box-shadow:0 0 24px rgba(56,189,248,.5);
opacity:.82;transition:all .25s ease;animation:fabFloat 3.4s ease-in-out infinite;
}
.fab:hover{opacity:1;transform:scale(1.1)}
.fab:active{transform:scale(.94)}
.fab .dot{
position:absolute;top:2px;right:2px;width:12px;height:12px;border-radius:50%;
background:#ef4444;box-shadow:0 0 8px rgba(239,68,68,.9);border:2px solid #030712;
}
@keyframes fabFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

/* FOOTER */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:56px 0 30px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;margin-bottom:36px}
.footer-brand p{color:var(--muted);font-size:.88rem;margin:14px 0 0;line-height:1.68;max-width:330px}
.footer-col h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;color:var(--blue-bright);font-weight:700;margin:0 0 16px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a{color:var(--muted);font-size:.88rem}
.footer-col a:hover{color:var(--blue-bright)}
.footer-col li{color:var(--muted);font-size:.88rem}
.footer-bottom{
border-top:1px solid rgba(148,163,184,.12);padding-top:22px;
display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;align-items:center;
}
.footer-bottom p{margin:0;color:var(--muted-2);font-size:.82rem}
.footer-bottom .age{
font-size:.72rem;font-weight:800;color:#fca5a5;border:1px solid rgba(239,68,68,.4);
border-radius:8px;padding:4px 10px;letter-spacing:.08em;
}

@media(max-width:1024px){
.nav-links{display:none}
.nav-toggle{display:grid;place-items:center}
.cat-wall{grid-template-columns:repeat(2,1fr)}
.step-track{grid-template-columns:repeat(2,1fr)}
.step-track::before{display:none}
.trust-strip{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:768px){
.section{padding:56px 0}
.hero{padding:52px 0 64px}
.hero-stats{gap:20px}
.compare-wrap{overflow-x:auto}
.compare-table{min-width:640px}
.cta-band{padding:32px 24px}
.sticky-cta p{display:none}
.sticky-cta{justify-content:center}
}
@media(max-width:520px){
.brand{max-width:200px}
.brand-text strong{font-size:.82rem}
.cat-wall{grid-template-columns:1fr}
.step-track{grid-template-columns:1fr}
.trust-strip{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.hero-actions .btn-primary-glow,.hero-actions .btn-ghost{width:100%;justify-content:center}
.news-thumb{flex:0 0 72px;width:72px;height:58px}
}

/* roulang page: article */
:root{
--bg:#030712;
--bg-soft:#081229;
--panel:rgba(12,20,40,.72);
--panel-strong:rgba(10,18,38,.94);
--line:rgba(56,189,248,.18);
--line-strong:rgba(56,189,248,.42);
--blue:#2563EB;
--blue-bright:#38BDF8;
--holo:#60A5FA;
--text:#F8FAFC;
--muted:#94A3B8;
--muted-2:#64748B;
--radius-lg:20px;
--radius-md:14px;
--radius-sm:10px;
--shadow-glow:0 0 24px rgba(37,99,235,.35);
--shadow-card:0 18px 40px -22px rgba(2,8,23,.95);
--font:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
html{scroll-behavior:smooth}
body{
margin:0;
font-family:var(--font);
background:var(--bg);
color:var(--text);
line-height:1.65;
-webkit-font-smoothing:antialiased;
font-size:16px;
overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-bright);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--holo)}
button{font-family:inherit}
.container{max-width:1180px}
.section{padding:76px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.65),rgba(3,7,18,.2))}
.section-head{margin-bottom:40px}
.eyebrow{
display:inline-flex;align-items:center;gap:8px;
font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
color:var(--blue-bright);background:rgba(37,99,235,.12);
border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-title{
font-size:clamp(1.5rem,2.6vw,2.1rem);
font-weight:800;letter-spacing:-.02em;margin:0 0 14px;line-height:1.25;
}
.section-title span{color:var(--blue-bright)}
.section-desc{color:var(--muted);max-width:760px;margin:0;font-size:1rem;line-height:1.7}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
/* HEADER */
.site-header{
position:sticky;top:0;z-index:1030;
background:rgba(3,7,18,.82);
backdrop-filter:blur(14px);
border-bottom:1px solid var(--line);
}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);font-weight:800;letter-spacing:-.02em;max-width:340px}
.brand:hover{color:var(--text)}
.brand-mark{
width:42px;height:42px;flex:0 0 42px;border-radius:13px;
display:grid;place-items:center;font-size:1.05rem;
background:linear-gradient(140deg,var(--blue),var(--blue-bright));
box-shadow:var(--shadow-glow);color:#04122b;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-bright)}
.brand-text strong{font-size:.92rem;font-weight:700}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.nav-links a{
display:inline-block;padding:9px 14px;border-radius:10px;
color:var(--muted);font-size:.9rem;font-weight:600;
transition:all .2s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(37,99,235,.14)}
.nav-links a.active{color:var(--blue-bright);background:rgba(37,99,235,.18);border:1px solid var(--line)}
.nav-cta{display:flex;align-items:center;gap:10px}
.btn-login{
padding:9px 16px;border-radius:10px;font-size:.88rem;font-weight:700;
color:var(--blue-bright);background:transparent;border:1px solid var(--line-strong);
transition:all .2s ease;white-space:nowrap;
}
.btn-login:hover{color:var(--text);border-color:var(--blue-bright);background:rgba(37,99,235,.12)}
.btn-signup{
padding:10px 20px;border-radius:11px;font-size:.88rem;font-weight:800;
color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));
border:none;box-shadow:var(--shadow-glow);transition:all .22s ease;white-space:nowrap;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(56,189,248,.55)}
.nav-toggle{
display:none;background:rgba(37,99,235,.14);border:1px solid var(--line);
color:var(--text);width:44px;height:44px;border-radius:12px;font-size:1.05rem;
}
.mobile-drawer{
display:none;border-top:1px solid var(--line);background:var(--panel-strong);
padding:10px 0 18px;
}
.mobile-drawer.open{display:block}
.mobile-drawer ul{list-style:none;margin:0;padding:0}
.mobile-drawer a{
display:block;padding:12px 6px;color:var(--muted);font-weight:600;
border-bottom:1px solid rgba(148,163,184,.08);
}
.mobile-drawer a.active{color:var(--blue-bright)}
/* BUTTONS */
.btn-primary-glow{
display:inline-flex;align-items:center;gap:10px;
padding:14px 28px;border-radius:13px;font-weight:800;font-size:.95rem;
color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));
border:none;box-shadow:var(--shadow-glow);transition:all .22s ease;
}
.btn-primary-glow:hover{color:#04122b;transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.6)}
.btn-ghost{
display:inline-flex;align-items:center;gap:10px;
padding:13px 26px;border-radius:13px;font-weight:700;font-size:.95rem;
color:var(--blue-bright);background:rgba(37,99,235,.08);
border:1px solid var(--line-strong);transition:all .22s ease;
}
.btn-ghost:hover{color:var(--text);border-color:var(--blue-bright);background:rgba(37,99,235,.18)}
/* ARTICLE HERO */
.article-hero{
position:relative;overflow:hidden;padding:54px 0 60px;
background:linear-gradient(180deg,rgba(3,7,18,.72),rgba(3,7,18,.97)),url('/assets/images/0962d10107f3f77b.jpg') center/cover no-repeat;
border-bottom:1px solid var(--line);
}
.article-hero::after{
content:"";position:absolute;inset:0;
background:radial-gradient(720px 380px at 80% 0%,rgba(56,189,248,.18),transparent 68%);
pointer-events:none;
}
.article-hero-inner{position:relative;z-index:2;max-width:860px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.82rem;color:var(--muted-2);margin-bottom:18px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--blue-bright)}
.crumbs i{font-size:.62rem}
.article-hero h1{
font-size:clamp(1.6rem,3vw,2.5rem);
font-weight:800;letter-spacing:-.03em;line-height:1.24;margin:0 0 18px;
}
.article-lead{color:var(--muted);font-size:1.02rem;line-height:1.75;max-width:760px;margin:0 0 22px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px}
.meta-chip{
display:inline-flex;align-items:center;gap:8px;
padding:7px 14px;border-radius:999px;font-size:.78rem;font-weight:600;
color:var(--muted);background:rgba(12,20,40,.7);border:1px solid var(--line);
}
.meta-chip i{color:var(--blue-bright)}
/* LAYOUT */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start}
.article-body{min-width:0}
.prose{color:#D5DFEE;font-size:1.02rem;line-height:1.78}
.prose h2{font-size:clamp(1.25rem,2vw,1.6rem);font-weight:800;letter-spacing:-.02em;margin:42px 0 16px;color:var(--text);line-height:1.3}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.12rem;font-weight:700;margin:30px 0 12px;color:var(--text)}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:22px}
.prose li{margin-bottom:10px}
.prose strong{color:var(--text)}
.prose a{font-weight:600}
.prose img{border-radius:var(--radius-md);margin:22px 0;border:1px solid var(--line)}
.prose blockquote{
margin:26px 0;padding:18px 22px;border-left:3px solid var(--blue-bright);
background:rgba(37,99,235,.08);border-radius:0 var(--radius-md) var(--radius-md) 0;color:#DCE6F5;
}
.prose table{width:100%;margin:24px 0;border-collapse:collapse;font-size:.94rem}
.prose table th,.prose table td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.prose table th{background:rgba(37,99,235,.14);color:var(--text);font-weight:700}
.notice-card{
margin:36px 0;padding:22px 24px;border-radius:var(--radius-lg);
background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.notice-card p{margin:0;color:#DCE6F5}
.notice-card i{color:var(--blue-bright);margin-right:8px}
/* KEY TAKEAWAYS */
.takeaways{
margin:0 0 34px;padding:24px;border-radius:var(--radius-lg);
background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.takeaways h2{font-size:1.05rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--blue-bright);margin:0 0 14px}
.takeaways ul{list-style:none;margin:0;padding:0}
.takeaways li{display:flex;gap:12px;align-items:flex-start;padding:9px 0;border-bottom:1px solid rgba(148,163,184,.08);color:#D5DFEE}
.takeaways li:last-child{border-bottom:none}
.takeaways i{color:var(--blue-bright);margin-top:5px;font-size:.75rem}
/* ASIDE */
.sticky-box{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.side-card{
border-radius:var(--radius-lg);padding:24px;
background:var(--panel-strong);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.side-card h3{font-size:.95rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--blue-bright);margin:0 0 14px}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{padding:10px 0;border-bottom:1px solid rgba(148,163,184,.08);font-size:.92rem;color:var(--muted)}
.side-list li:last-child{border-bottom:none}
.side-list strong{color:var(--text);display:block}
.side-cta p{color:var(--muted);font-size:.92rem;margin:0 0 16px;line-height:1.65}
.side-cta .btn-primary-glow{width:100%;justify-content:center;padding:13px 20px;font-size:.9rem}
.channel-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.channel-badge{
display:inline-flex;align-items:center;gap:7px;
font-size:.76rem;font-weight:700;color:#D5DFEE;
background:rgba(37,99,235,.14);border:1px solid var(--line);border-radius:8px;padding:6px 11px;
}
/* RELATED */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
display:flex;flex-direction:column;overflow:hidden;
border-radius:var(--radius-lg);background:var(--panel);border:1px solid var(--line);
box-shadow:var(--shadow-card);transition:all .25s ease;height:100%;
}
.rel-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 0 30px rgba(37,99,235,.3)}
.rel-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-tag{
align-self:flex-start;font-size:.68rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
color:var(--blue-bright);background:rgba(37,99,235,.14);border:1px solid var(--line);border-radius:999px;padding:4px 11px;
}
.rel-body h3{font-size:1.02rem;font-weight:700;margin:0;line-height:1.45;color:var(--text)}
.rel-body p{font-size:.88rem;color:var(--muted);margin:0;line-height:1.65}
.rel-link{margin-top:auto;font-size:.85rem;font-weight:700;color:var(--blue-bright);display:inline-flex;align-items:center;gap:8px}
.rel-card:hover .rel-link{color:var(--holo)}
/* FAQ */
.faq-item{
border:1px solid var(--line);border-radius:var(--radius-md);
background:var(--panel);margin-bottom:14px;overflow:hidden;
}
.faq-item summary{
cursor:pointer;padding:18px 22px;font-weight:700;font-size:.98rem;color:var(--text);
list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.75rem;color:var(--blue-bright);transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item[open] summary{border-bottom:1px solid var(--line)}
.faq-item p{margin:0;padding:18px 22px;color:var(--muted);font-size:.94rem;line-height:1.72}
/* CTA STRIP */
.cta-strip{
position:relative;overflow:hidden;border-radius:var(--radius-lg);
padding:44px;border:1px solid var(--line-strong);
background:linear-gradient(135deg,rgba(37,99,235,.24),rgba(3,7,18,.9)),url('/assets/images/4c16a17f2c8cc485.jpg') center/cover no-repeat;
box-shadow:var(--shadow-card);
}
.cta-strip h2{font-size:clamp(1.3rem,2.2vw,1.8rem);font-weight:800;margin:0 0 14px;letter-spacing:-.02em}
.cta-strip p{color:#CBD8EA;max-width:640px;margin:0 0 24px;line-height:1.72}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
/* FOOTER */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:60px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{color:var(--muted);font-size:.9rem;margin:16px 0 0;line-height:1.7;max-width:360px}
.footer-col h4{font-size:.82rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:var(--blue-bright);margin:0 0 16px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{color:var(--muted);font-size:.88rem;padding:6px 0}
.footer-col a{color:var(--muted);font-size:.88rem}
.footer-col a:hover{color:var(--blue-bright)}
.footer-bottom{
display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
}
.footer-bottom p{margin:0;color:var(--muted-2);font-size:.82rem}
.age{
font-size:.72rem;font-weight:800;color:var(--blue-bright);
border:1px solid var(--line-strong);border-radius:999px;padding:4px 12px;
}
/* FAB */
.fab-support{
position:fixed;left:16px;bottom:96px;z-index:1050;
width:56px;height:56px;border-radius:50%;
display:grid;place-items:center;font-size:1.15rem;color:#04122b;
background:linear-gradient(140deg,var(--blue-bright),var(--blue));
box-shadow:0 0 22px rgba(37,99,235,.5);
border:1px solid rgba(56,189,248,.55);
opacity:.8;transition:all .25s ease;
}
.fab-support:hover{opacity:1;transform:scale(1.1) rotate(360deg);color:#04122b}
.fab-support:active{transform:scale(.95) translateY(3px)}
.fab-support .dot{
position:absolute;top:-2px;right:-2px;width:14px;height:14px;border-radius:50%;
background:#DC2626;border:2px solid var(--bg);
}
@media (max-width:1024px){
.article-layout{grid-template-columns:1fr}
.sticky-box{position:static}
.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.footer-grid{grid-template-columns:1fr 1fr}
.nav-links{display:none}
.nav-toggle{display:grid;place-items:center}
}
@media (max-width:768px){
.section{padding:56px 0}
.article-hero{padding:40px 0 46px}
.rel-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr;gap:26px}
.cta-strip{padding:30px}
}
@media (max-width:520px){
.container{padding-left:18px;padding-right:18px}
.brand-text strong{font-size:.82rem}
.btn-login{padding:8px 12px;font-size:.82rem}
.btn-signup{padding:9px 14px;font-size:.82rem}
.hero-actions,.cta-actions{flex-direction:column;align-items:stretch}
.btn-primary-glow,.btn-ghost{justify-content:center;width:100%}
.fab-support{width:52px;height:52px;bottom:88px}
}

/* roulang page: category1 */
:root{
--bg:#030712;
--bg-soft:#081229;
--panel:rgba(12,20,40,.72);
--panel-strong:rgba(10,18,38,.94);
--line:rgba(56,189,248,.18);
--line-strong:rgba(56,189,248,.42);
--blue:#2563EB;
--blue-bright:#38BDF8;
--holo:#60A5FA;
--text:#F8FAFC;
--muted:#94A3B8;
--muted-2:#64748B;
--radius-lg:20px;
--radius-md:14px;
--radius-sm:10px;
--shadow-glow:0 0 24px rgba(37,99,235,.35);
--shadow-card:0 18px 40px -22px rgba(2,8,23,.95);
--font:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
html{scroll-behavior:smooth}
body{
margin:0;
font-family:var(--font);
background:var(--bg);
color:var(--text);
line-height:1.65;
-webkit-font-smoothing:antialiased;
font-size:16px;
overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-bright);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--holo)}
button{font-family:inherit}
.container{max-width:1180px}
.section{padding:76px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.65),rgba(3,7,18,.2))}
.section-head{margin-bottom:40px}
.eyebrow{
display:inline-flex;align-items:center;gap:8px;
font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
color:var(--blue-bright);background:rgba(37,99,235,.12);
border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-title{
font-size:clamp(1.5rem,2.6vw,2.1rem);
font-weight:800;letter-spacing:-.02em;margin:0 0 14px;line-height:1.25;
}
.section-title span{color:var(--blue-bright)}
.section-desc{color:var(--muted);max-width:760px;margin:0;font-size:1rem;line-height:1.7}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
/* HEADER */
.site-header{
position:sticky;top:0;z-index:1030;
background:rgba(3,7,18,.82);
backdrop-filter:blur(14px);
border-bottom:1px solid var(--line);
}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);font-weight:800;letter-spacing:-.02em;max-width:340px}
.brand:hover{color:var(--text)}
.brand-mark{
width:42px;height:42px;flex:0 0 42px;border-radius:13px;
display:grid;place-items:center;font-size:1.05rem;
background:linear-gradient(140deg,var(--blue),var(--blue-bright));
box-shadow:var(--shadow-glow);color:#04122b;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-bright)}
.brand-text strong{font-size:.92rem;font-weight:700}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.nav-links a{
display:inline-block;padding:9px 14px;border-radius:10px;
color:var(--muted);font-size:.9rem;font-weight:600;
transition:all .2s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(37,99,235,.14)}
.nav-links a.active{color:var(--blue-bright);background:rgba(37,99,235,.18);border:1px solid var(--line)}
.nav-cta{display:flex;align-items:center;gap:10px}
.btn-login{
padding:9px 16px;border-radius:10px;font-size:.88rem;font-weight:700;
color:var(--blue-bright);background:transparent;border:1px solid var(--line-strong);
transition:all .2s ease;white-space:nowrap;
}
.btn-login:hover{color:var(--text);border-color:var(--blue-bright);background:rgba(37,99,235,.12)}
.btn-signup{
padding:10px 20px;border-radius:11px;font-size:.88rem;font-weight:800;
color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));
border:none;box-shadow:var(--shadow-glow);transition:all .22s ease;white-space:nowrap;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(56,189,248,.55)}
.nav-toggle{
display:none;background:rgba(37,99,235,.14);border:1px solid var(--line);
color:var(--text);width:44px;height:44px;border-radius:12px;font-size:1.05rem;
}
.mobile-drawer{
display:none;border-top:1px solid var(--line);background:var(--panel-strong);
padding:10px 0 18px;
}
.mobile-drawer.open{display:block}
.mobile-drawer ul{list-style:none;margin:0;padding:0}
.mobile-drawer a{
display:block;padding:12px 6px;color:var(--muted);font-weight:600;
border-bottom:1px solid rgba(148,163,184,.08);
}
.mobile-drawer a.active{color:var(--blue-bright)}
/* BUTTONS */
.btn-primary-glow{
display:inline-flex;align-items:center;gap:10px;
padding:14px 28px;border-radius:13px;font-weight:800;font-size:.95rem;
color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));
border:none;box-shadow:var(--shadow-glow);transition:all .22s ease;
}
.btn-primary-glow:hover{color:#04122b;transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.6)}
.btn-ghost{
display:inline-flex;align-items:center;gap:10px;
padding:13px 26px;border-radius:13px;font-weight:700;font-size:.95rem;
color:var(--blue-bright);background:rgba(37,99,235,.08);
border:1px solid var(--line-strong);transition:all .22s ease;
}
.btn-ghost:hover{color:var(--text);border-color:var(--blue-bright);background:rgba(37,99,235,.18)}
/* PAGE HERO */
.page-hero{
position:relative;overflow:hidden;padding:64px 0 72px;
background:linear-gradient(180deg,rgba(3,7,18,.58),rgba(3,7,18,.96)),url('/assets/images/0962d10107f3f77b.jpg') center/cover no-repeat;
border-bottom:1px solid var(--line);
}
.page-hero::after{
content:"";position:absolute;inset:0;
background:radial-gradient(700px 360px at 80% 10%,rgba(56,189,248,.18),transparent 68%);
pointer-events:none;
}
.page-hero-inner{position:relative;z-index:2}
.crumb{font-size:.8rem;color:var(--muted-2);margin-bottom:18px;letter-spacing:.02em}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--blue-bright)}
.crumb span{color:var(--blue-bright)}
.page-hero h1{
font-size:clamp(1.7rem,3.4vw,2.7rem);
font-weight:800;letter-spacing:-.03em;line-height:1.2;margin:0 0 18px;
}
.page-hero h1 em{font-style:normal;color:var(--blue-bright)}
.page-hero p.lead{color:var(--muted);font-size:1.02rem;max-width:720px;margin:0 0 26px;line-height:1.72}
.hero-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.tag-chip{
display:inline-flex;align-items:center;gap:8px;
font-size:.8rem;font-weight:600;color:var(--holo);
background:rgba(37,99,235,.1);border:1px solid var(--line);
border-radius:999px;padding:7px 15px;
}
.hero-panel{
background:var(--panel);border:1px solid var(--line);
border-radius:var(--radius-lg);padding:26px;backdrop-filter:blur(8px);
box-shadow:var(--shadow-card);
}
.hero-panel h3{font-size:1.05rem;font-weight:800;margin:0 0 14px}
.hero-panel ul{list-style:none;margin:0;padding:0}
.hero-panel li{
display:flex;align-items:flex-start;gap:11px;
font-size:.9rem;color:var(--muted);padding:9px 0;
border-bottom:1px solid rgba(148,163,184,.08);
}
.hero-panel li:last-child{border-bottom:none}
.hero-panel li i{color:var(--blue-bright);margin-top:4px}
/* STEP */
.step-row{display:flex;gap:20px;align-items:flex-start;padding:22px 0;border-bottom:1px solid rgba(148,163,184,.1)}
.step-row:last-child{border-bottom:none}
.step-num{
flex:0 0 54px;width:54px;height:54px;border-radius:16px;display:grid;place-items:center;
font-weight:800;font-size:1.1rem;color:#04122b;
background:linear-gradient(140deg,var(--blue-bright),var(--blue));box-shadow:var(--shadow-glow);
}
.step-row h4{font-size:1.02rem;font-weight:700;margin:0 0 8px}
.step-row p{color:var(--muted);font-size:.94rem;margin:0;line-height:1.68}
/* CARD */
.feature-card{
background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
padding:26px;height:100%;transition:all .25s ease;box-shadow:var(--shadow-card);
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 30px rgba(37,99,235,.28)}
.feature-icon{
width:52px;height:52px;border-radius:15px;display:grid;place-items:center;
font-size:1.25rem;color:var(--blue-bright);
background:rgba(37,99,235,.14);border:1px solid var(--line);margin-bottom:18px;
}
.feature-card h4{font-size:1.05rem;font-weight:700;margin:0 0 10px}
.feature-card p{color:var(--muted);font-size:.92rem;margin:0;line-height:1.68}
.media-card{
background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
overflow:hidden;height:100%;transition:all .25s ease;
}
.media-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.media-card img{width:100%;height:200px;object-fit:cover}
.media-card .media-body{padding:22px}
.media-card .media-body h4{font-size:1rem;font-weight:700;margin:0 0 10px}
.media-card .media-body p{color:var(--muted);font-size:.9rem;margin:0;line-height:1.65}
.badge-soft{
display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
color:var(--blue-bright);background:rgba(37,99,235,.14);border:1px solid var(--line);
border-radius:999px;padding:5px 12px;margin-bottom:12px;
}
/* COMPARE */
.compare-box{
background:var(--panel-strong);border:1px solid var(--line);border-radius:var(--radius-lg);
padding:28px;height:100%;
}
.compare-box h4{font-size:1.05rem;font-weight:800;margin:0 0 16px;display:flex;align-items:center;gap:10px}
.compare-box h4 i{color:var(--blue-bright)}
.compare-box ul{list-style:none;margin:0;padding:0}
.compare-box li{display:flex;gap:11px;padding:10px 0;font-size:.92rem;color:var(--muted);border-bottom:1px solid rgba(148,163,184,.08)}
.compare-box li:last-child{border-bottom:none}
.compare-box li i{color:var(--blue-bright);margin-top:4px}
/* FAQ */
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;transition:border-color .2s ease}
.faq-item:hover{border-color:var(--line-strong)}
.faq-q{
width:100%;text-align:left;background:transparent;border:none;color:var(--text);
font-size:.98rem;font-weight:700;padding:20px 22px;display:flex;justify-content:space-between;align-items:center;gap:14px;
}
.faq-q i{color:var(--blue-bright);transition:transform .25s ease}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{padding:0 22px;max-height:0;overflow:hidden;transition:all .3s ease;color:var(--muted);font-size:.92rem;line-height:1.7}
.faq-item.open .faq-a{padding:0 22px 22px;max-height:400px}
/* CTA */
.cta-bar{
background:linear-gradient(135deg,rgba(37,99,235,.22),rgba(56,189,248,.1));
border:1px solid var(--line-strong);border-radius:var(--radius-lg);
padding:44px 38px;position:relative;overflow:hidden;
}
.cta-bar::after{content:"";position:absolute;inset:0;background:radial-gradient(500px 240px at 90% 0%,rgba(56,189,248,.22),transparent 70%)}
.cta-bar-inner{position:relative;z-index:2}
.cta-bar h3{font-size:clamp(1.3rem,2.3vw,1.75rem);font-weight:800;margin:0 0 12px;letter-spacing:-.02em}
.cta-bar p{color:var(--muted);margin:0 0 22px;max-width:640px}
/* LIST */
.info-list{list-style:none;margin:0;padding:0}
.info-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid rgba(148,163,184,.1);font-size:.94rem;color:var(--muted)}
.info-list li:last-child{border-bottom:none}
.info-list li i{color:var(--blue-bright);margin-top:4px}
.post-card{
background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
overflow:hidden;height:100%;transition:all .25s ease;display:flex;flex-direction:column;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 0 28px rgba(37,99,235,.25)}
.post-card img{width:100%;height:180px;object-fit:cover}
.post-card .post-body{padding:20px;display:flex;flex-direction:column;flex:1}
.post-card h4{font-size:.98rem;font-weight:700;margin:0 0 10px;line-height:1.45}
.post-card h4 a{color:var(--text)}
.post-card h4 a:hover{color:var(--blue-bright)}
.post-card p{color:var(--muted);font-size:.88rem;margin:0 0 14px;line-height:1.62;flex:1}
.post-meta{font-size:.76rem;color:var(--muted-2);display:flex;gap:14px;text-transform:uppercase;letter-spacing:.06em}
/* CHANNEL */
.channel-row{display:flex;flex-wrap:wrap;gap:14px}
.channel-badge{
display:inline-flex;align-items:center;gap:10px;
background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-md);
padding:14px 20px;font-weight:700;font-size:.9rem;color:var(--text);
}
.channel-badge i{color:var(--blue-bright);font-size:1.1rem}
/* FOOTER */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--muted);font-size:.9rem;line-height:1.7;max-width:400px}
.footer-col h4{font-size:.95rem;font-weight:700;margin:0 0 16px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{color:var(--muted);font-size:.89rem;padding:7px 0}
.footer-col a{color:var(--muted)}
.footer-col a:hover{color:var(--blue-bright)}
.footer-bottom{
display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;
margin-top:42px;padding-top:24px;border-top:1px solid rgba(148,163,184,.12);
}
.footer-bottom p{color:var(--muted-2);font-size:.84rem;margin:0}
.age{
font-size:.78rem;font-weight:800;color:var(--blue-bright);
border:1px solid var(--line-strong);border-radius:9px;padding:4px 12px;
}
/* FAB */
.fab-support{
position:fixed;left:16px;bottom:96px;z-index:1050;
width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
background:var(--panel-strong);border:2px solid var(--blue-bright);
color:var(--blue-bright);font-size:1.3rem;
box-shadow:0 0 20px rgba(6,182,212,.45);
opacity:.78;transition:all .25s ease;text-decoration:none;
}
.fab-support:hover{opacity:1;transform:scale(1.1);color:var(--text);box-shadow:0 0 30px rgba(56,189,248,.7)}
.fab-support .dot{
position:absolute;top:2px;right:2px;width:13px;height:13px;border-radius:50%;
background:#DC2626;border:2px solid #fff;animation:pulseDot 1.6s infinite;
}
@keyframes pulseDot{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.25);opacity:.7}}
@media (max-width:1024px){
.nav-links{display:none}
.nav-toggle{display:block}
.footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
.section{padding:56px 0}
.footer-grid{grid-template-columns:1fr}
.step-row{flex-direction:column;gap:14px}
.cta-bar{padding:32px 24px}
.media-card img,.post-card img{height:170px}
}
@media (max-width:520px){
.brand-text strong{font-size:.82rem}
.brand-text small{font-size:.6rem}
.btn-login{padding:8px 12px;font-size:.8rem}
.btn-signup{padding:9px 14px;font-size:.8rem}
.hero-tags{gap:8px}
}

/* roulang page: category2 */
:root{
--bg:#030712;
--bg-soft:#081229;
--panel:rgba(12,20,40,.72);
--panel-strong:rgba(10,18,38,.94);
--line:rgba(56,189,248,.18);
--line-strong:rgba(56,189,248,.42);
--blue:#2563EB;
--blue-bright:#38BDF8;
--holo:#60A5FA;
--text:#F8FAFC;
--muted:#94A3B8;
--muted-2:#64748B;
--radius-lg:20px;
--radius-md:14px;
--radius-sm:10px;
--shadow-glow:0 0 24px rgba(37,99,235,.35);
--shadow-card:0 18px 40px -22px rgba(2,8,23,.95);
--font:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
margin:0;
font-family:var(--font);
background:var(--bg);
color:var(--text);
line-height:1.65;
-webkit-font-smoothing:antialiased;
font-size:16px;
overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-bright);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--holo)}
button{font-family:inherit}
.container{max-width:1180px}
.section{padding:76px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.65),rgba(3,7,18,.2))}
.section-head{margin-bottom:40px}
.eyebrow{
display:inline-flex;align-items:center;gap:8px;
font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
color:var(--blue-bright);background:rgba(37,99,235,.12);
border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-title{
font-size:clamp(1.5rem,2.6vw,2.1rem);
font-weight:800;letter-spacing:-.02em;margin:0 0 14px;line-height:1.25;
}
.section-title span{color:var(--blue-bright)}
.section-desc{color:var(--muted);max-width:760px;margin:0;font-size:1rem;line-height:1.7}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
/* HEADER */
.site-header{
position:sticky;top:0;z-index:1030;
background:rgba(3,7,18,.82);
backdrop-filter:blur(14px);
border-bottom:1px solid var(--line);
}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);font-weight:800;letter-spacing:-.02em;max-width:340px}
.brand:hover{color:var(--text)}
.brand-mark{
width:42px;height:42px;flex:0 0 42px;border-radius:13px;
display:grid;place-items:center;font-size:1.05rem;
background:linear-gradient(140deg,var(--blue),var(--blue-bright));
box-shadow:var(--shadow-glow);color:#04122b;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-bright)}
.brand-text strong{font-size:.92rem;font-weight:700}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.nav-links a{
display:inline-block;padding:9px 14px;border-radius:10px;
color:var(--muted);font-size:.9rem;font-weight:600;
transition:all .2s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(37,99,235,.14)}
.nav-links a.active{color:var(--blue-bright);background:rgba(37,99,235,.18);border:1px solid var(--line)}
.nav-cta{display:flex;align-items:center;gap:10px}
.btn-login{
padding:9px 16px;border-radius:10px;font-size:.88rem;font-weight:700;
color:var(--blue-bright);background:transparent;border:1px solid var(--line-strong);
transition:all .2s ease;white-space:nowrap;
}
.btn-login:hover{color:var(--text);border-color:var(--blue-bright);background:rgba(37,99,235,.12)}
.btn-signup{
padding:10px 20px;border-radius:11px;font-size:.88rem;font-weight:800;
color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));
border:none;box-shadow:var(--shadow-glow);transition:all .22s ease;white-space:nowrap;
}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(56,189,248,.55)}
.nav-toggle{
display:none;background:rgba(37,99,235,.14);border:1px solid var(--line);
color:var(--text);width:44px;height:44px;border-radius:12px;font-size:1.05rem;
}
.mobile-drawer{
display:none;border-top:1px solid var(--line);background:var(--panel-strong);
padding:10px 0 18px;
}
.mobile-drawer.open{display:block}
.mobile-drawer ul{list-style:none;margin:0;padding:0}
.mobile-drawer a{
display:block;padding:12px 6px;color:var(--muted);font-weight:600;
border-bottom:1px solid rgba(148,163,184,.08);
}
.mobile-drawer a.active{color:var(--blue-bright)}
/* BUTTONS */
.btn-primary-glow{
display:inline-flex;align-items:center;gap:10px;
padding:14px 28px;border-radius:13px;font-weight:800;font-size:.95rem;
color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));
border:none;box-shadow:var(--shadow-glow);transition:all .22s ease;
}
.btn-primary-glow:hover{color:#04122b;transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.6)}
.btn-ghost{
display:inline-flex;align-items:center;gap:10px;
padding:13px 26px;border-radius:13px;font-weight:700;font-size:.95rem;
color:var(--blue-bright);background:rgba(37,99,235,.08);
border:1px solid var(--line-strong);transition:all .22s ease;
}
.btn-ghost:hover{color:var(--text);border-color:var(--blue-bright);background:rgba(37,99,235,.18)}
/* HERO */
.hero{
position:relative;overflow:hidden;padding:64px 0 80px;
background:linear-gradient(180deg,rgba(3,7,18,.62),rgba(3,7,18,.97)),url('/assets/images/0575dc4afc1d9c75.jpg') center/cover no-repeat;
border-bottom:1px solid var(--line);
}
.hero::after{
content:"";position:absolute;inset:0;
background:radial-gradient(700px 380px at 82% 8%,rgba(56,189,248,.18),transparent 68%);
pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero-badge{
display:inline-flex;align-items:center;gap:9px;
padding:7px 16px;border-radius:999px;font-size:.75rem;font-weight:700;
letter-spacing:.1em;text-transform:uppercase;
color:var(--blue-bright);background:rgba(37,99,235,.14);border:1px solid var(--line-strong);
margin-bottom:20px;
}
.hero h1{
font-size:clamp(1.7rem,3.5vw,2.85rem);
font-weight:800;letter-spacing:-.03em;line-height:1.2;margin:0 0 18px;
}
.hero h1 em{font-style:normal;color:var(--blue-bright)}
.hero-lead{color:var(--muted);font-size:1.02rem;max-width:640px;margin-bottom:26px;line-height:1.72}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px}
.hero-stat strong{display:block;font-size:1.5rem;font-weight:800;color:var(--text)}
.hero-stat span{font-size:.8rem;color:var(--muted-2);text-transform:uppercase;letter-spacing:.08em;font-weight:600}
/* HERO STACK CARDS */
.hero-stack{position:relative;min-height:420px}
.stack-card{
background:var(--panel);border:1px solid var(--line);
border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
backdrop-filter:blur(14px);padding:20px;position:absolute;width:100%;
transition:transform .3s ease,border-color .3s ease;
}
.stack-card:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.stack-main{position:relative;z-index:3;top:0}
.stack-side-1{position:relative;z-index:2;margin-top:18px;opacity:.96}
.stack-side-2{position:relative;z-index:1;margin-top:18px;opacity:.9}
.stack-icon{
width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
background:rgba(37,99,235,.16);border:1px solid var(--line);color:var(--blue-bright);
font-size:1.1rem;margin-bottom:12px;
}
.stack-card h3{font-size:1rem;font-weight:700;margin:0 0 8px}
.stack-card p{font-size:.86rem;color:var(--muted);margin:0;line-height:1.6}
.stack-metric{display:flex;gap:20px;margin-top:14px}
.stack-metric div strong{display:block;font-size:1.15rem;font-weight:800;color:var(--blue-bright)}
.stack-metric div span{font-size:.72rem;color:var(--muted-2);text-transform:uppercase;letter-spacing:.06em;font-weight:600}
/* FEATURE CARDS */
.feature-card{
height:100%;background:var(--panel);border:1px solid var(--line);
border-radius:var(--radius-lg);padding:26px 24px;
box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease;
}
.feature-card:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.feature-card .f-icon{
width:52px;height:52px;border-radius:15px;display:grid;place-items:center;
background:linear-gradient(140deg,rgba(37,99,235,.25),rgba(56,189,248,.12));
border:1px solid var(--line);color:var(--blue-bright);font-size:1.25rem;margin-bottom:18px;
}
.feature-card h3{font-size:1.08rem;font-weight:700;margin:0 0 10px}
.feature-card p{font-size:.9rem;color:var(--muted);margin:0;line-height:1.68}
/* SCENARIO */
.scenario-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.scenario-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.scenario-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.scenario-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(3,7,18,.72))}
.scenario-tag{
position:absolute;left:18px;bottom:18px;z-index:2;
background:rgba(10,18,38,.86);border:1px solid var(--line-strong);
color:var(--blue-bright);font-size:.78rem;font-weight:700;letter-spacing:.06em;
padding:7px 14px;border-radius:999px;
}
.step-list{list-style:none;margin:0;padding:0}
.step-list li{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid rgba(148,163,184,.1)}
.step-list li:last-child{border-bottom:none}
.step-num{
flex:0 0 40px;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
background:linear-gradient(140deg,var(--blue),var(--blue-bright));color:#04122b;
font-weight:800;font-size:.92rem;
}
.step-list h4{font-size:.98rem;font-weight:700;margin:0 0 5px}
.step-list p{font-size:.86rem;color:var(--muted);margin:0;line-height:1.62}
/* COMPARE */
.compare-table{
width:100%;border-collapse:separate;border-spacing:0;
background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
overflow:hidden;
}
.compare-table th,.compare-table td{padding:16px 18px;font-size:.9rem;border-bottom:1px solid rgba(148,163,184,.1);text-align:left;vertical-align:top}
.compare-table thead th{background:rgba(37,99,235,.14);font-weight:700;color:var(--text)}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table td:first-child{color:var(--muted);font-weight:600}
.compare-table .good{color:var(--blue-bright);font-weight:700}
/* CATEGORY MATRIX */
.cat-matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat-card{
display:block;background:var(--panel);border:1px solid var(--line);
border-radius:var(--radius-lg);padding:24px;transition:all .25s ease;color:var(--text);
box-shadow:var(--shadow-card);
}
.cat-card:hover{border-color:var(--line-strong);transform:translateY(-4px);color:var(--text)}
.cat-card .c-icon{
width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
background:rgba(37,99,235,.16);border:1px solid var(--line);color:var(--blue-bright);
font-size:1.15rem;margin-bottom:14px;
}
.cat-card h3{font-size:1.02rem;font-weight:700;margin:0 0 8px}
.cat-card p{font-size:.86rem;color:var(--muted);margin:0 0 14px;line-height:1.6}
.cat-card .c-more{font-size:.82rem;font-weight:700;color:var(--blue-bright);display:inline-flex;align-items:center;gap:7px}
/* INFO LIST */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.info-card{
background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
overflow:hidden;box-shadow:var(--shadow-card);transition:all .25s ease;display:flex;flex-direction:column;
}
.info-card:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.info-card .thumb{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line)}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.info-card:hover .thumb img{transform:scale(1.06)}
.info-body{padding:20px;display:flex;flex-direction:column;flex:1}
.info-meta{font-size:.74rem;color:var(--muted-2);text-transform:uppercase;letter-spacing:.08em;font-weight:600;margin-bottom:9px}
.info-body h3{font-size:1rem;font-weight:700;margin:0 0 9px;line-height:1.4}
.info-body h3 a{color:var(--text)}
.info-body h3 a:hover{color:var(--blue-bright)}
.info-body p{font-size:.85rem;color:var(--muted);margin:0 0 14px;line-height:1.6}
.info-body .read-more{margin-top:auto;font-size:.82rem;font-weight:700;color:var(--blue-bright);display:inline-flex;align-items:center;gap:7px}
.empty-note{color:var(--muted);font-size:.92rem;padding:30px;text-align:center;border:1px dashed var(--line);border-radius:var(--radius-lg)}
/* TRUST BAR */
.trust-bar{
display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
background:var(--panel-strong);border:1px solid var(--line);border-radius:var(--radius-lg);
padding:28px;box-shadow:var(--shadow-card);
}
.trust-item{display:flex;gap:13px;align-items:flex-start}
.trust-item i{color:var(--blue-bright);font-size:1.15rem;margin-top:3px}
.trust-item strong{display:block;font-size:.92rem;font-weight:700;margin-bottom:3px}
.trust-item span{font-size:.8rem;color:var(--muted);line-height:1.55}
/* FAQ */
.faq-item{
background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-md);
margin-bottom:14px;overflow:hidden;
}
.faq-q{
width:100%;text-align:left;background:transparent;border:none;color:var(--text);
padding:18px 22px;font-size:.98rem;font-weight:700;display:flex;justify-content:space-between;
align-items:center;gap:14px;cursor:pointer;
}
.faq-q i{color:var(--blue-bright);transition:transform .25s ease;flex:0 0 auto}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 22px}
.faq-item.open .faq-a{max-height:340px;padding-bottom:20px}
.faq-a p{font-size:.9rem;color:var(--muted);margin:0;line-height:1.7}
/* CTA BAND */
.cta-band{
position:relative;overflow:hidden;border-radius:var(--radius-lg);
background:linear-gradient(120deg,rgba(37,99,235,.24),rgba(3,7,18,.9)),url('/assets/images/0962d10107f3f77b.jpg') center/cover no-repeat;
border:1px solid var(--line-strong);padding:52px 44px;
box-shadow:var(--shadow-glow);
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:800;margin:0 0 12px;letter-spacing:-.02em}
.cta-band p{color:var(--muted);font-size:.98rem;max-width:620px;margin:0 0 24px;line-height:1.7}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
/* STICKY BOTTOM */
.sticky-cta{
position:fixed;left:0;right:0;bottom:0;z-index:1040;
background:rgba(3,7,18,.94);backdrop-filter:blur(14px);
border-top:1px solid var(--line-strong);padding:11px 0;
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.sticky-inner p{margin:0;font-size:.86rem;color:var(--muted);font-weight:600}
.sticky-inner p strong{color:var(--text)}
/* FAB */
.fab{
position:fixed;left:16px;bottom:96px;z-index:1050;
width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
background:rgba(7,7,13,.82);backdrop-filter:blur(10px);
border:2px solid var(--blue-bright);
color:var(--blue-bright);font-size:1.25rem;
box-shadow:0 0 22px rgba(56,189,248,.5);
transition:all .25s ease;opacity:.85;
}
.fab:hover{opacity:1;transform:scale(1.1);color:var(--text)}
.fab:active{transform:scale(.95) translateY(3px)}
.fab .dot{
position:absolute;top:-2px;right:-2px;width:13px;height:13px;border-radius:50%;
background:#22D3EE;box-shadow:0 0 10px rgba(34,211,238,.9);
}
/* FOOTER */
.site-footer{
background:linear-gradient(180deg,rgba(8,18,41,.7),rgba(3,7,18,1));
border-top:1px solid var(--line);padding:60px 0 0;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:.87rem;color:var(--muted);line-height:1.7;margin:0;max-width:340px}
.footer-col h4{font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--blue-bright);margin:0 0 16px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{font-size:.87rem;color:var(--muted);margin-bottom:10px;line-height:1.55}
.footer-col a{color:var(--muted)}
.footer-col a:hover{color:var(--blue-bright)}
.footer-bottom{
border-top:1px solid var(--line);padding:22px 0;display:flex;
justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:.82rem;color:var(--muted-2)}
.age{
font-size:.74rem;font-weight:800;color:var(--blue-bright);
border:1px solid var(--line-strong);border-radius:999px;padding:4px 12px;
}
/* RESPONSIVE */
@media (max-width:1024px){
.nav-links{display:none}
.nav-toggle{display:grid;place-items:center}
.scenario-wrap{grid-template-columns:1fr;gap:32px}
.cat-matrix{grid-template-columns:1fr 1fr}
.info-grid{grid-template-columns:1fr 1fr}
.footer-grid{grid-template-columns:1fr 1fr;gap:30px}
.trust-bar{grid-template-columns:1fr 1fr}
.hero-stack{min-height:auto;margin-top:36px}
.stack-card{position:relative;margin-top:0}
.stack-side-1,.stack-side-2{margin-top:18px}
}
@media (max-width:768px){
.section{padding:56px 0}
.hero{padding:48px 0 60px}
.cat-matrix,.info-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.cta-band{padding:36px 26px}
.compare-table th,.compare-table td{padding:13px 14px;font-size:.85rem}
.trust-bar{grid-template-columns:1fr}
}
@media (max-width:520px){
.btn-signup{padding:9px 14px;font-size:.8rem}
.btn-login{display:none}
.brand-text strong{font-size:.82rem}
.brand-text small{font-size:.6rem}
.hero-actions .btn-primary-glow,.hero-actions .btn-ghost{width:100%;justify-content:center}
.sticky-inner{justify-content:center;text-align:center}
}

/* roulang page: category3 */
:root{
--bg:#030712;
--bg-soft:#081229;
--panel:rgba(12,20,40,.72);
--panel-strong:rgba(10,18,38,.94);
--line:rgba(56,189,248,.18);
--line-strong:rgba(56,189,248,.42);
--blue:#2563EB;
--blue-bright:#38BDF8;
--holo:#60A5FA;
--text:#F8FAFC;
--muted:#94A3B8;
--muted-2:#64748B;
--radius-lg:20px;
--radius-md:14px;
--radius-sm:10px;
--shadow-glow:0 0 24px rgba(37,99,235,.35);
--shadow-card:0 18px 40px -22px rgba(2,8,23,.95);
--font:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
html{scroll-behavior:smooth}
body{
margin:0;font-family:var(--font);background:var(--bg);color:var(--text);
line-height:1.65;-webkit-font-smoothing:antialiased;font-size:16px;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-bright);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--holo)}
button{font-family:inherit}
.container{max-width:1180px}
.section{padding:76px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(8,18,41,.65),rgba(3,7,18,.2))}
.section-head{margin-bottom:40px}
.eyebrow{
display:inline-flex;align-items:center;gap:8px;font-size:.72rem;font-weight:700;
letter-spacing:.16em;text-transform:uppercase;color:var(--blue-bright);
background:rgba(37,99,235,.12);border:1px solid var(--line);border-radius:999px;
padding:6px 14px;margin-bottom:16px;
}
.section-title{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;letter-spacing:-.02em;margin:0 0 14px;line-height:1.25}
.section-title span{color:var(--blue-bright)}
.section-desc{color:var(--muted);max-width:760px;margin:0;font-size:1rem;line-height:1.7}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0}
/* HEADER */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(3,7,18,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);font-weight:800;letter-spacing:-.02em;max-width:340px}
.brand:hover{color:var(--text)}
.brand-mark{width:42px;height:42px;flex:0 0 42px;border-radius:13px;display:grid;place-items:center;font-size:1.05rem;background:linear-gradient(140deg,var(--blue),var(--blue-bright));box-shadow:var(--shadow-glow);color:#04122b}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-bright)}
.brand-text strong{font-size:.92rem;font-weight:700}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.nav-links a{display:inline-block;padding:9px 14px;border-radius:10px;color:var(--muted);font-size:.9rem;font-weight:600;transition:all .2s ease}
.nav-links a:hover{color:var(--text);background:rgba(37,99,235,.14)}
.nav-links a.active{color:var(--blue-bright);background:rgba(37,99,235,.18);border:1px solid var(--line)}
.nav-cta{display:flex;align-items:center;gap:10px}
.btn-login{padding:9px 16px;border-radius:10px;font-size:.88rem;font-weight:700;color:var(--blue-bright);background:transparent;border:1px solid var(--line-strong);transition:all .2s ease;white-space:nowrap}
.btn-login:hover{color:var(--text);border-color:var(--blue-bright);background:rgba(37,99,235,.12)}
.btn-signup{padding:10px 20px;border-radius:11px;font-size:.88rem;font-weight:800;color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));border:none;box-shadow:var(--shadow-glow);transition:all .22s ease;white-space:nowrap}
.btn-signup:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(56,189,248,.55);color:#04122b}
.nav-toggle{display:none;background:rgba(37,99,235,.14);border:1px solid var(--line);color:var(--text);width:44px;height:44px;border-radius:12px;font-size:1.05rem}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--panel-strong);padding:10px 0 18px}
.mobile-drawer.open{display:block}
.mobile-drawer ul{list-style:none;margin:0;padding:0}
.mobile-drawer a{display:block;padding:12px 6px;color:var(--muted);font-weight:600;border-bottom:1px solid rgba(148,163,184,.08)}
.mobile-drawer a.active{color:var(--blue-bright)}
/* BUTTONS */
.btn-primary-glow{display:inline-flex;align-items:center;gap:10px;padding:14px 28px;border-radius:13px;font-weight:800;font-size:.95rem;color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));border:none;box-shadow:var(--shadow-glow);transition:all .22s ease}
.btn-primary-glow:hover{color:#04122b;transform:translateY(-2px);box-shadow:0 0 34px rgba(56,189,248,.6)}
.btn-ghost{display:inline-flex;align-items:center;gap:10px;padding:13px 26px;border-radius:13px;font-weight:700;font-size:.95rem;color:var(--blue-bright);background:rgba(37,99,235,.08);border:1px solid var(--line-strong);transition:all .22s ease}
.btn-ghost:hover{color:var(--text);border-color:var(--blue-bright);background:rgba(37,99,235,.18)}
/* HERO */
.hero{position:relative;overflow:hidden;padding:66px 0 80px;background:linear-gradient(180deg,rgba(3,7,18,.6),rgba(3,7,18,.97)),url('/assets/images/0575dc4afc1d9c75.jpg') center/cover no-repeat;border-bottom:1px solid var(--line)}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(700px 380px at 82% 8%,rgba(56,189,248,.18),transparent 68%);pointer-events:none}
.hero-inner{position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--blue-bright);background:rgba(37,99,235,.14);border:1px solid var(--line-strong);margin-bottom:20px}
.hero h1{font-size:clamp(1.7rem,3.5vw,2.85rem);font-weight:800;letter-spacing:-.03em;line-height:1.2;margin:0 0 18px}
.hero h1 em{font-style:normal;color:var(--blue-bright)}
.hero-lead{color:var(--muted);font-size:1.02rem;max-width:660px;margin-bottom:26px;line-height:1.72}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px}
.hero-stat strong{display:block;font-size:1.5rem;font-weight:800;color:var(--text)}
.hero-stat span{font-size:.8rem;color:var(--muted-2);text-transform:uppercase;letter-spacing:.08em;font-weight:600}
.hero-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);backdrop-filter:blur(18px);padding:26px}
.hero-panel h3{font-size:1.05rem;font-weight:800;margin:0 0 18px}
.hero-panel .slot-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(148,163,184,.16)}
.hero-panel .slot-row:last-child{border-bottom:none}
.hero-panel .slot-row span{color:var(--muted);font-size:.9rem}
.hero-panel .slot-row strong{font-size:.95rem;color:var(--blue-bright)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em}
.tag-blue{background:rgba(37,99,235,.16);color:var(--blue-bright);border:1px solid var(--line)}
.tag-hot{background:rgba(244,63,94,.16);color:#fb7185;border:1px solid rgba(244,63,94,.35)}
.tag-green{background:rgba(16,185,129,.14);color:#34d399;border:1px solid rgba(16,185,129,.32)}
/* CARDS */
.lobby-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;height:100%;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.lobby-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:0 0 30px rgba(37,99,235,.28)}
.lobby-card img{aspect-ratio:16/10;object-fit:cover;width:100%}
.lobby-card .body{padding:20px}
.lobby-card h3{font-size:1.02rem;font-weight:800;margin:12px 0 8px}
.lobby-card p{color:var(--muted);font-size:.9rem;margin:0 0 14px;line-height:1.65}
.lobby-card .meta{display:flex;align-items:center;justify-content:space-between;font-size:.8rem;color:var(--muted-2)}
.flow-step{display:flex;gap:18px;align-items:flex-start}
.flow-step .num{width:46px;height:46px;flex:0 0 46px;border-radius:14px;display:grid;place-items:center;font-weight:800;color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));box-shadow:var(--shadow-glow)}
.flow-step h3{font-size:1rem;font-weight:800;margin:6px 0 6px}
.flow-step p{color:var(--muted);font-size:.92rem;margin:0;line-height:1.65}
.play-list{list-style:none;margin:0;padding:0}
.play-list li{position:relative;padding:10px 0 10px 30px;color:var(--muted);font-size:.94rem;border-bottom:1px solid rgba(148,163,184,.08)}
.play-list li:last-child{border-bottom:none}
.play-list li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:10px;color:var(--blue-bright);font-size:.82rem}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--panel);padding:20px 22px;margin-bottom:14px}
.faq-item h3{font-size:1rem;font-weight:800;margin:0 0 10px;color:var(--text)}
.faq-item p{margin:0;color:var(--muted);font-size:.93rem;line-height:1.7}
.cta-band{background:linear-gradient(135deg,rgba(37,99,235,.22),rgba(56,189,248,.12));border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:44px;position:relative;overflow:hidden}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:800;margin:0 0 14px}
.cta-band p{color:var(--muted);max-width:680px;margin:0 0 24px}
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-md);padding:22px;text-align:left}
.stat-item strong{display:block;font-size:1.6rem;font-weight:800;color:var(--blue-bright)}
.stat-item span{font-size:.84rem;color:var(--muted)}
.pay-badges{display:flex;flex-wrap:wrap;gap:12px}
.pay-badge{display:inline-flex;align-items:center;gap:9px;padding:11px 18px;border-radius:12px;background:rgba(37,99,235,.1);border:1px solid var(--line);font-size:.88rem;font-weight:700;color:var(--text)}
.pay-badge i{color:var(--blue-bright)}
.content-list{display:grid;gap:18px}
.content-item{display:grid;grid-template-columns:180px 1fr;gap:20px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;transition:border-color .2s ease,transform .2s ease}
.content-item:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.content-item img{height:100%;object-fit:cover;min-height:130px}
.content-item .txt{padding:18px 20px 18px 0}
.content-item .txt h3{font-size:1rem;font-weight:800;margin:0 0 8px;line-height:1.4}
.content-item .txt h3 a{color:var(--text)}
.content-item .txt h3 a:hover{color:var(--blue-bright)}
.content-item .txt p{color:var(--muted);font-size:.88rem;margin:0 0 10px;line-height:1.6}
.content-item .txt .meta{font-size:.78rem;color:var(--muted-2);display:flex;gap:14px;flex-wrap:wrap}
.empty-note{color:var(--muted);font-size:.92rem;border:1px dashed var(--line);border-radius:var(--radius-md);padding:22px;background:var(--panel)}
/* FAB */
.fab-support{position:fixed;left:16px;bottom:96px;z-index:1050;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;color:#04122b;background:linear-gradient(135deg,var(--blue-bright),var(--blue));box-shadow:0 0 22px rgba(56,189,248,.5);border:1px solid rgba(255,255,255,.25);opacity:.85;transition:all .25s ease}
.fab-support:hover{opacity:1;transform:scale(1.08) rotate(8deg);color:#04122b}
.fab-support .dot{position:absolute;top:2px;right:2px;width:12px;height:12px;border-radius:50%;background:#ef4444;border:2px solid #04122b}
/* STICKY BAR */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:1040;background:rgba(8,18,41,.94);backdrop-filter:blur(16px);border-top:1px solid var(--line-strong);padding:12px 0}
.sticky-bar .inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.sticky-bar p{margin:0;color:var(--muted);font-size:.88rem}
.sticky-bar strong{color:var(--text)}
/* FOOTER */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand p{color:var(--muted);font-size:.88rem;margin:16px 0 0;line-height:1.7;max-width:360px}
.footer-col h4{font-size:.82rem;font-weight:800;text-transform:uppercase;letter-spacing:.12em;color:var(--blue-bright);margin:0 0 16px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{color:var(--muted);font-size:.88rem;padding:6px 0}
.footer-col a{color:var(--muted)}
.footer-col a:hover{color:var(--blue-bright)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:38px;padding-top:22px;border-top:1px solid var(--line)}
.footer-bottom p{margin:0;color:var(--muted-2);font-size:.84rem}
.footer-bottom .age{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:32px;padding:0 12px;border-radius:9px;background:rgba(244,63,94,.14);border:1px solid rgba(244,63,94,.34);color:#fb7185;font-weight:800;font-size:.82rem}
@media (max-width:1024px){
.nav-links{display:none}
.nav-toggle{display:grid;place-items:center}
.stat-strip{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
.section{padding:56px 0}
.hero{padding:52px 0 66px}
.footer-grid{grid-template-columns:1fr;gap:26px}
.content-item{grid-template-columns:1fr}
.content-item img{min-height:180px}
.content-item .txt{padding:0 20px 18px}
.cta-band{padding:30px 22px}
.stat-strip{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
.brand-text strong{font-size:.82rem}
.brand-text small{font-size:.6rem}
.nav-cta .btn-login{display:none}
.hero-stats{gap:18px}
.stat-strip{grid-template-columns:1fr}
.hero-actions .btn-primary-glow,.hero-actions .btn-ghost{width:100%;justify-content:center}
.sticky-bar .inner{justify-content:center;text-align:center}
.sticky-bar p{display:none}
}

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