/* roulang page: index */
:root{
  --bg:#0b0910;
  --bg-soft:#141020;
  --bg-card:#1a1428;
  --bg-elev:#221a34;
  --line:#2a2140;
  --text:#f4eefb;
  --muted:#a89dc2;
  --brand:#ff2d78;
  --brand-2:#ff7ab3;
  --accent:#8b5cf6;
  --accent-2:#22d3ee;
  --warn:#fbbf24;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:22px;
  --shadow:0 10px 30px rgba(255,45,120,.18);
  --shadow-soft:0 6px 20px rgba(0,0,0,.35);
  --space:clamp(16px,2.4vw,28px);
  --maxw:1200px;
  --t:.25s ease;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:radial-gradient(1200px 600px at 10% -10%,rgba(139,92,246,.25),transparent 60%),
             radial-gradient(900px 500px at 100% 0%,rgba(255,45,120,.18),transparent 60%),
             var(--bg);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
a{color:var(--brand-2);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand)}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.25;font-weight:700;letter-spacing:.5px}
h1{font-size:clamp(30px,4.6vw,52px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:20px}
p{margin:0 0 1em;color:var(--muted)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--space)}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(11,9,16,.72);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--text);font-size:20px}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:grid;place-items:center;font-size:18px;box-shadow:var(--shadow);
}
.brand-mark::before{content:"18+";font-size:11px;font-weight:800;color:#fff;letter-spacing:.5px}
.nav-menu{display:flex;align-items:center;gap:6px;list-style:none;padding:0;margin:0}
.nav-menu a{
  display:inline-block;padding:9px 14px;border-radius:999px;
  color:var(--text);font-size:14.5px;font-weight:500;
  transition:background var(--t),color var(--t),transform var(--t);
}
.nav-menu a:hover{background:var(--bg-elev);color:var(--brand-2)}
.nav-menu a.active{background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;box-shadow:var(--shadow)}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;padding:10px 18px;
  border-radius:999px;background:var(--brand);color:#fff;font-weight:700;font-size:14px;
  box-shadow:var(--shadow);transition:transform var(--t),background var(--t);
}
.nav-cta:hover{background:var(--brand-2);color:#fff;transform:translateY(-1px)}
.nav-toggle{display:none;background:none;border:0;color:var(--text);font-size:26px;cursor:pointer}

/* Hero */
.hero{
  position:relative;
  padding:clamp(60px,8vw,110px) 0 clamp(40px,6vw,80px);
  overflow:hidden;
  background:
    linear-gradient(180deg,rgba(11,9,16,.55),rgba(11,9,16,.9)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 -1px 0;height:120px;
  background:linear-gradient(180deg,transparent,var(--bg));
}
.hero-inner{position:relative;z-index:2;text-align:center;max-width:900px;margin:0 auto}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,45,120,.12);border:1px solid rgba(255,45,120,.35);
  color:var(--brand-2);font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero h1{
  background:linear-gradient(120deg,#fff 20%,var(--brand-2) 55%,var(--accent) 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  text-shadow:0 6px 30px rgba(255,45,120,.25);
}
.hero-sub{font-size:clamp(15px,1.6vw,18px);color:#d9d0ef;max-width:720px;margin:0 auto 32px}
.hero-cta{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:12px;font-weight:700;font-size:15px;
  cursor:pointer;transition:transform var(--t),box-shadow var(--t),background var(--t);
  border:0;
}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,45,120,.35);color:#fff}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.18)}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  max-width:760px;margin:0 auto;
}
.stat{
  background:rgba(26,20,40,.7);border:1px solid var(--line);
  backdrop-filter:blur(8px);
  padding:16px 12px;border-radius:var(--radius);text-align:center;
}
.stat b{display:block;font-size:22px;background:linear-gradient(120deg,var(--brand-2),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:12.5px;color:var(--muted)}

/* Section base */
.section{padding:clamp(60px,7vw,90px) 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 40px}
.section-head .kicker{
  color:var(--brand-2);font-weight:700;font-size:13.5px;letter-spacing:2px;text-transform:uppercase;
}
.section-head h2{margin-top:8px}
.section-head p{color:var(--muted)}

/* Channel grid */
.channel-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:22px;
}
.channel-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:var(--bg-card);border:1px solid var(--line);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  isolation:isolate;
}
.channel-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow)}
.channel-card .cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.channel-card .cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .6s ease}
.channel-card:hover .cover img{transform:scale(1.08)}
.channel-card .cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(11,9,16,.85));
}
.channel-card .badge{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(255,45,120,.9);color:#fff;
}
.channel-card .body{padding:18px 20px 22px}
.channel-card h3{margin-bottom:6px}
.channel-card p{font-size:14px;margin-bottom:14px;color:var(--muted)}
.channel-card .meta{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted)}
.channel-card .meta a{font-weight:700;color:var(--brand-2)}
.channel-card .meta a:hover{color:var(--brand)}

/* Feature strip */
.feature-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.feature-item{
  padding:26px 22px;border-radius:var(--radius);
  background:linear-gradient(180deg,var(--bg-card),var(--bg-soft));
  border:1px solid var(--line);
  transition:transform var(--t),border-color var(--t);
}
.feature-item:hover{transform:translateY(-3px);border-color:var(--accent)}
.feature-icon{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(255,45,120,.2),rgba(139,92,246,.2));
  color:var(--brand-2);font-size:22px;font-weight:800;margin-bottom:14px;
}
.feature-item h3{font-size:17px}
.feature-item p{font-size:14px;margin:0}

/* Latest list */
.latest{
  display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:start;
}
.latest-main{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px;
}
.latest-list{list-style:none;margin:0;padding:0}
.latest-list li{
  padding:14px 0;border-bottom:1px dashed var(--line);
  display:flex;justify-content:space-between;gap:18px;align-items:center;
}
.latest-list li:last-child{border-bottom:0}
.latest-list a{color:var(--text);font-weight:600;font-size:15px;flex:1;transition:color var(--t)}
.latest-list a:hover{color:var(--brand)}
.latest-list .tag{
  font-size:12px;padding:3px 10px;border-radius:999px;
  background:rgba(139,92,246,.18);color:var(--brand-2);white-space:nowrap;
}
.latest-list .date{font-size:12.5px;color:var(--muted);white-space:nowrap}
.empty-note{padding:30px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:var(--radius)}
.latest-side{display:grid;gap:20px}
.side-card{
  border-radius:var(--radius-lg);overflow:hidden;
  background:var(--bg-card);border:1px solid var(--line);
}
.side-card .thumb{aspect-ratio:16/10;background:center/cover no-repeat}
.side-card .body{padding:20px}
.side-card h3{font-size:18px}
.side-card p{font-size:14px;margin-bottom:14px}
.side-card .btn{padding:10px 18px;font-size:14px}

/* Showcase */
.showcase{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.showcase .tile{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/5;
  border:1px solid var(--line);
}
.showcase .tile img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.showcase .tile:hover img{transform:scale(1.06)}
.showcase .tile::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(11,9,16,.9));
}
.showcase .caption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;color:#fff;
}
.showcase .caption b{display:block;font-size:18px;margin-bottom:4px}
.showcase .caption span{font-size:13px;color:#d9d0ef}
.showcase .caption .pill{
  display:inline-block;margin-top:10px;padding:5px 12px;
  border-radius:999px;background:var(--brand);font-size:12px;font-weight:700;
}

/* Steps */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;
}
.step{
  padding:26px 22px;border-radius:var(--radius);
  background:var(--bg-card);border:1px solid var(--line);position:relative;
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:16px;right:20px;
  font-size:40px;font-weight:800;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;opacity:.35;
}
.step h3{font-size:17px}
.step p{font-size:14px;margin:0}

/* Trust */
.trust{
  display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
  background:linear-gradient(135deg,rgba(255,45,120,.08),rgba(139,92,246,.08));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(30px,4vw,50px);
}
.trust-list{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px}
.trust-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:#e5deef;
}
.trust-list li::before{
  content:"✓";flex:0 0 24px;height:24px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:800;
}
.trust-visual{
  aspect-ratio:16/11;border-radius:var(--radius);overflow:hidden;
  background:center/cover no-repeat;box-shadow:var(--shadow-soft);
}

/* FAQ */
.faq{max-width:820px;margin:0 auto;display:grid;gap:14px}
.faq details{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--radius);padding:18px 22px;transition:border-color var(--t);
}
.faq details[open]{border-color:var(--brand)}
.faq summary{
  cursor:pointer;font-weight:700;font-size:16px;list-style:none;
  display:flex;justify-content:space-between;align-items:center;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-size:22px;color:var(--brand-2);transition:transform var(--t);
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{margin:12px 0 0;font-size:14.5px;color:var(--muted)}

/* CTA */
.cta{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(255,45,120,.18),rgba(139,92,246,.2)),
             url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border-radius:var(--radius-lg);padding:clamp(40px,5vw,70px);
  text-align:center;border:1px solid var(--line);
}
.cta::before{
  content:"";position:absolute;inset:0;background:rgba(11,9,16,.6);z-index:0;
}
.cta > *{position:relative;z-index:1}
.cta h2{color:#fff}
.cta p{color:#e5deef;max-width:640px;margin:0 auto 26px}

/* Footer */
.site-footer{
  margin-top:60px;padding:60px 0 24px;
  background:linear-gradient(180deg,var(--bg-soft),#080510);
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px;
}
.footer-brand p{font-size:14px;margin-top:14px;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.footer-col a{color:var(--muted);font-size:14px;transition:color var(--t)}
.footer-col a:hover{color:var(--brand-2)}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}

/* Focus */
a:focus-visible,button:focus-visible,.btn:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px;
}

/* Responsive */
@media (max-width:1024px){
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .feature-strip{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .latest{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .trust{grid-template-columns:1fr}
}
@media (max-width:768px){
  .nav-toggle{display:block}
  .nav-menu{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--bg-soft);border-bottom:1px solid var(--line);
    padding:10px var(--space);max-height:0;overflow:hidden;transition:max-height .3s ease;
  }
  .nav-menu.open{max-height:520px;padding-top:14px;padding-bottom:14px}
  .nav-menu a{padding:12px 14px;border-radius:10px}
  .nav-cta{display:none}
  .showcase{grid-template-columns:1fr 1fr}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{justify-content:center}
}
@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr 1fr}
  .feature-strip{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .showcase{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
}

/* roulang page: article */
:root{
  --bg:#0b0710;
  --bg-soft:#140b1c;
  --surface:#1a1024;
  --surface-2:#241536;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#f4ecff;
  --muted:#a89bc0;
  --primary:#ff2f7a;
  --primary-2:#ff6a3d;
  --accent:#7c5cff;
  --gold:#ffcf5c;
  --radius:14px;
  --radius-lg:20px;
  --shadow:0 20px 45px -20px rgba(255,47,122,.35);
  --shadow-soft:0 10px 30px -18px rgba(0,0,0,.6);
  --container:1200px;
  --step-1:.875rem;
  --step0:1rem;
  --step1:1.125rem;
  --step2:1.5rem;
  --step3:2rem;
  --step4:2.75rem;
  --step5:3.5rem;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  background:radial-gradient(1200px 600px at 15% -10%,rgba(124,92,255,.22),transparent 60%),
             radial-gradient(900px 500px at 90% 0%,rgba(255,47,122,.18),transparent 60%),
             var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
img{max-width:100%;display:block}
button{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(18px);
  background:rgba(11,7,16,.72);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;letter-spacing:.5px}
.brand-mark{
  width:28px;height:28px;border-radius:8px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-2) 55%,var(--accent) 100%);
  box-shadow:0 6px 18px -4px rgba(255,47,122,.55);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px;border-radius:4px;
  background:rgba(11,7,16,.85);
}
.nav-menu{list-style:none;display:flex;gap:6px;margin:0;padding:0;align-items:center}
.nav-menu a{
  padding:8px 14px;border-radius:999px;font-size:.95rem;color:var(--muted);
  transition:all .2s ease;
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-menu a.active{
  color:#fff;
  background:linear-gradient(135deg,rgba(255,47,122,.25),rgba(124,92,255,.25));
  border:1px solid rgba(255,47,122,.35);
}
.nav-cta{
  padding:10px 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;font-weight:600;font-size:.9rem;
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{transform:translateY(-2px);color:#fff;box-shadow:0 22px 40px -18px rgba(255,47,122,.6)}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--line-strong);
  color:#fff;width:42px;height:42px;border-radius:10px;font-size:1.2rem;cursor:pointer;
}

/* Article header */
.article-hero{
  position:relative;padding:64px 0 40px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.14;filter:blur(2px);z-index:0;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 0%,var(--bg) 100%);
  z-index:0;
}
.article-hero > .container{position:relative;z-index:1}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  color:var(--muted);font-size:.88rem;margin-bottom:22px;
}
.crumbs a:hover{color:#fff}
.crumbs .sep{opacity:.4}
.article-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:.82rem;
  background:linear-gradient(135deg,rgba(255,47,122,.2),rgba(124,92,255,.2));
  border:1px solid rgba(255,47,122,.35);
  color:#ffd0e0;margin-bottom:16px;
}
.article-title{
  font-size:clamp(1.6rem,3.4vw,2.5rem);
  line-height:1.3;margin:0 0 18px;
  font-weight:800;letter-spacing:.5px;
  background:linear-gradient(90deg,#fff 0%,#ffd6e5 60%,#c8b6ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:14px 22px;color:var(--muted);font-size:.92rem;
  padding-top:14px;border-top:1px dashed var(--line);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);display:inline-block}

/* Main layout */
.article-main{padding:44px 0 20px}
.layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;
}
.content-card{
  background:linear-gradient(180deg,var(--surface) 0%,var(--surface-2) 100%);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px;box-shadow:var(--shadow-soft);
}
.notice-bar{
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;border-radius:12px;margin-bottom:24px;
  background:rgba(255,207,92,.08);
  border:1px solid rgba(255,207,92,.25);
  color:#ffe6a8;font-size:.9rem;
}
.notice-bar strong{color:#fff}

/* Article content typography */
.article-body{color:#eadff5;font-size:1.02rem;line-height:1.9}
.article-body h1,.article-body h2,.article-body h3,.article-body h4{
  color:#fff;font-weight:700;line-height:1.4;
  margin:1.8em 0 .8em;letter-spacing:.3px;
}
.article-body h2{
  font-size:1.5rem;padding-left:14px;
  border-left:4px solid var(--primary);
}
.article-body h3{font-size:1.2rem;color:#ffd6e5}
.article-body p{margin:0 0 1em}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--primary-2)}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em}
.article-body li{margin-bottom:.4em}
.article-body img{
  border-radius:12px;margin:1.4em 0;border:1px solid var(--line);
  box-shadow:0 12px 30px -18px rgba(0,0,0,.6);
}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;
  background:rgba(124,92,255,.08);
  border-left:4px solid var(--accent);
  border-radius:0 10px 10px 0;color:#dcd0f0;
}
.article-body code{
  background:rgba(255,255,255,.08);padding:2px 6px;border-radius:5px;font-size:.9em;
}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0}
.article-body th,.article-body td{
  padding:10px 14px;border:1px solid var(--line-strong);text-align:left;
}
.article-body th{background:rgba(255,255,255,.05);color:#fff}

.not-found{
  text-align:center;padding:60px 20px;
}
.not-found h2{font-size:1.6rem;margin:0 0 12px}
.not-found p{color:var(--muted);margin:0 0 24px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-weight:600;font-size:.95rem;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease;
  border:none;cursor:pointer;
}
.btn:hover{transform:translateY(-2px);color:#fff}
.btn-ghost{
  background:transparent;border:1px solid var(--line-strong);color:#fff;
  box-shadow:none;
}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:var(--primary)}

/* Action bar */
.action-bar{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  margin-top:32px;padding-top:24px;border-top:1px solid var(--line);
}
.tags-row{display:flex;flex-wrap:wrap;gap:8px}
.tag-pill{
  padding:6px 14px;border-radius:999px;font-size:.82rem;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  color:#e0d3f0;transition:all .2s ease;
}
.tag-pill:hover{border-color:var(--primary);color:#fff;background:rgba(255,47,122,.1)}
.share-row{display:flex;gap:8px}
.share-btn{
  width:38px;height:38px;border-radius:10px;display:inline-flex;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  font-size:.9rem;color:#e0d3f0;cursor:pointer;
  transition:all .2s ease;
}
.share-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* Sidebar */
.sidebar{display:flex;flex-direction:column;gap:22px;position:sticky;top:90px}
.side-card{
  background:linear-gradient(180deg,var(--surface) 0%,var(--surface-2) 100%);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-soft);
}
.side-title{
  font-size:1rem;font-weight:700;margin:0 0 16px;color:#fff;
  display:flex;align-items:center;gap:8px;
}
.side-title::before{
  content:"";width:4px;height:16px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.hot-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.hot-list li a{
  display:flex;align-items:center;gap:10px;
  padding:10px;border-radius:10px;
  background:rgba(255,255,255,.03);border:1px solid transparent;
  font-size:.9rem;color:#e0d3f0;line-height:1.5;
  transition:all .2s ease;
}
.hot-list li a:hover{
  background:rgba(255,47,122,.08);border-color:rgba(255,47,122,.3);color:#fff;transform:translateX(3px);
}
.rank-num{
  flex-shrink:0;width:24px;height:24px;border-radius:6px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:.78rem;font-weight:700;
  background:rgba(255,255,255,.06);color:var(--muted);
}
.hot-list li:nth-child(1) .rank-num{background:linear-gradient(135deg,#ff2f7a,#ff6a3d);color:#fff}
.hot-list li:nth-child(2) .rank-num{background:linear-gradient(135deg,#ff6a3d,#ffcf5c);color:#fff}
.hot-list li:nth-child(3) .rank-num{background:linear-gradient(135deg,#7c5cff,#ff2f7a);color:#fff}

.channel-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.channel-grid a{
  display:block;padding:12px;border-radius:10px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  text-align:center;font-size:.88rem;font-weight:600;color:#e0d3f0;
  transition:all .2s ease;
}
.channel-grid a:hover{background:rgba(255,47,122,.1);border-color:var(--primary);color:#fff}

.side-cta{
  text-align:center;padding:24px 20px;
  background:linear-gradient(135deg,rgba(255,47,122,.15),rgba(124,92,255,.15));
  border:1px solid rgba(255,47,122,.3);
}
.side-cta h4{margin:0 0 10px;font-size:1.05rem;color:#fff}
.side-cta p{margin:0 0 16px;font-size:.85rem;color:var(--muted)}

/* Related articles */
.related-section{padding:20px 0 60px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;
  gap:12px;margin-bottom:24px;
}
.section-head h2{
  margin:0;font-size:1.6rem;font-weight:800;
}
.section-head p{margin:6px 0 0;color:var(--muted);font-size:.95rem}
.related-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.related-card{
  background:linear-gradient(180deg,var(--surface) 0%,var(--surface-2) 100%);
  border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-soft);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.related-card:hover{
  transform:translateY(-4px);border-color:rgba(255,47,122,.4);
  box-shadow:0 24px 50px -22px rgba(255,47,122,.35);
}
.related-cover{
  position:relative;aspect-ratio:16/10;overflow:hidden;
}
.related-cover img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.related-card:hover .related-cover img{transform:scale(1.06)}
.related-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(11,7,16,.7) 100%);
}
.duration-badge{
  position:absolute;bottom:10px;right:10px;z-index:1;
  padding:3px 8px;border-radius:5px;font-size:.78rem;
  background:rgba(0,0,0,.65);color:#fff;font-weight:600;
}
.play-icon{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:1;
  width:52px;height:52px;border-radius:50%;
  background:rgba(255,47,122,.85);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:1.2rem;
  opacity:0;transition:opacity .3s ease;
}
.related-card:hover .play-icon{opacity:1}
.related-info{padding:16px}
.related-info h3{
  margin:0 0 8px;font-size:1rem;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-info .meta{
  display:flex;justify-content:space-between;color:var(--muted);font-size:.82rem;
}

/* Bottom CTA */
.bottom-cta{
  margin:20px 0 60px;padding:44px;
  border-radius:var(--radius-lg);
  background:
    linear-gradient(135deg,rgba(255,47,122,.18),rgba(124,92,255,.18)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border:1px solid rgba(255,47,122,.3);
  text-align:center;position:relative;overflow:hidden;
}
.bottom-cta::before{
  content:"";position:absolute;inset:0;
  background:rgba(11,7,16,.55);
}
.bottom-cta > *{position:relative;z-index:1}
.bottom-cta h2{margin:0 0 12px;font-size:1.7rem;font-weight:800}
.bottom-cta p{margin:0 auto 22px;max-width:640px;color:#e0d3f0}
.bottom-cta .btn-group{display:inline-flex;gap:12px;flex-wrap:wrap;justify-content:center}

/* Footer */
.site-footer{
  background:linear-gradient(180deg,#0a0612 0%,#150920 100%);
  border-top:1px solid var(--line);
  padding:56px 0 26px;margin-top:20px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
}
.footer-brand p{color:var(--muted);font-size:.9rem;margin:14px 0 0;max-width:340px}
.footer-col h4{margin:0 0 16px;font-size:1rem;color:#fff;font-weight:700}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col li{color:var(--muted);font-size:.9rem}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:36px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  color:var(--muted);font-size:.85rem;
}

/* Responsive */
@media (max-width:1024px){
  .layout{grid-template-columns:1fr;gap:30px}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 260px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-menu{
    display:none;position:absolute;top:70px;left:0;right:0;
    background:rgba(11,7,16,.98);backdrop-filter:blur(20px);
    flex-direction:column;padding:14px 20px;gap:4px;
    border-bottom:1px solid var(--line);
  }
  .nav-menu.open{display:flex}
  .nav-menu a{display:block;width:100%;padding:12px 14px;border-radius:10px}
  .nav-cta{display:none}
  .article-hero{padding:44px 0 28px}
  .content-card{padding:22px}
  .article-body{font-size:.98rem}
  .action-bar{flex-direction:column;align-items:flex-start}
  .sidebar{flex-direction:column}
  .related-grid{grid-template-columns:1fr}
  .bottom-cta{padding:30px 20px}
  .bottom-cta h2{font-size:1.35rem}
}
@media (max-width:520px){
  .article-title{font-size:1.5rem}
  .footer-grid{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* roulang page: category1 */
:root {
  --primary: #C4612F;
  --primary-hover: #A94E22;
  --primary-light: #F2E3D6;
  --bg-warm: #F7F4EF;
  --bg-surface: #FBF9F5;
  --bg-white: #FFFFFF;
  --border-warm: #E7E1D7;
  --text-dark: #1F2421;
  --text-muted: #5C635D;
  --charcoal: #1F2421;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 999px;
  --shadow-sm: 0 1px 3px rgba(31,36,33,0.08);
  --shadow-md: 0 4px 12px rgba(31,36,33,0.12);
  --shadow-lg: 0 8px 24px rgba(31,36,33,0.16);
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 300;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.3s ease;
}

button, input {
  font-family: inherit;
  border: none;
  outline: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.site-header {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-warm);
  position: sticky;
  top: 0;
  z-index: 999;
  box-shadow: var(--shadow-sm);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  gap: var(--spacing-md);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  font-size: 1.125rem;
  color: var(--text-dark);
  white-space: nowrap;
}

.brand-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  background: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-dark);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-menu a {
  font-weight: 400;
  font-size: 0.9375rem;
  color: var(--text-muted);
  padding: 0.5rem 0;
  position: relative;
}

.nav-menu a:hover, .nav-menu a.active {
  color: var(--primary);
}

.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
}

.nav-cta {
  background: var(--primary);
  color: white;
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 400;
  font-size: 0.9375rem;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.nav-cta:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.hero-category {
  position: relative;
  background: linear-gradient(135deg, rgba(196,97,47,0.08), rgba(196,97,47,0.02)), url(/assets/images/backpic/back-1.webp) center/cover;
  padding: var(--spacing-xl) 0;
  overflow: hidden;
}

.hero-category::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(247,244,239,0.7), rgba(247,244,239,0.85));
}

.hero-category .container {
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 400;
  margin-bottom: var(--spacing-md);
}

.hero-category h1 {
  font-family: 'Playfair Display', 'Noto Serif SC', serif;
  font-size: 3rem;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

.hero-category h1 .highlight {
  color: var(--primary);
  font-style: italic;
}

.hero-category .lead {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 680px;
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--primary);
  color: white;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-full);
  font-weight: 400;
  font-size: 1rem;
  transition: all 0.3s ease;
  display: inline-block;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--bg-white);
  color: var(--text-dark);
  padding: 0.875rem 2rem;
  border-radius: var(--radius-full);
  font-weight: 400;
  font-size: 1rem;
  border: 1px solid var(--border-warm);
  transition: all 0.3s ease;
  display: inline-block;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.stat-item {
  background: var(--bg-white);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-warm);
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 500;
  color: var(--primary);
  display: block;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.section {
  padding: var(--spacing-xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-eyebrow {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 400;
  margin-bottom: var(--spacing-sm);
}

.section-title {
  font-family: 'Playfair Display', 'Noto Serif SC', serif;
  font-size: 2.25rem;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
}

.section-title .highlight {
  color: var(--primary);
  font-style: italic;
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.7;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-md);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-md);
}

.card {
  background: var(--bg-white);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--bg-surface);
}

.card-body {
  padding: var(--spacing-md);
}

.card-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 400;
  margin-bottom: var(--spacing-xs);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: var(--spacing-xs);
  line-height: 1.4;
}

.card-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
}

.card-meta {
  display: flex;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all 0.3s ease;
}

.feature-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary-light), var(--bg-surface));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: var(--spacing-xs);
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.process-section {
  background: var(--bg-surface);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.step-item {
  position: relative;
  text-align: center;
}

.step-number {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 500;
  margin: 0 auto var(--spacing-md);
}

.step-title {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: var(--spacing-xs);
}

.step-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.faq-section {
  background: var(--bg-white);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: var(--spacing-xs);
}

.faq-answer {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.cta-section {
  background: linear-gradient(135deg, rgba(196,97,47,0.08), rgba(196,97,47,0.02));
  text-align: center;
  padding: var(--spacing-xl) 0;
}

.cta-section .section-title {
  margin-bottom: var(--spacing-md);
}

.cta-section .section-desc {
  margin-bottom: var(--spacing-lg);
}

.site-footer {
  background: var(--charcoal);
  color: rgba(255,255,255,0.8);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-brand .brand {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.7);
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 500;
  color: white;
  margin-bottom: var(--spacing-md);
}

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

.footer-col ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-col ul li a {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.7);
  transition: color 0.3s ease;
}

.footer-col ul li a:hover {
  color: var(--primary);
}

.footer-bottom {
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

@media (max-width: 1024px) {
  .hero-category h1 {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-warm);
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.3s ease;
  }
  
  .nav-menu.open {
    max-height: 400px;
    opacity: 1;
  }
  
  .nav-menu li {
    width: 100%;
  }
  
  .nav-menu a {
    display: block;
    padding: var(--spacing-xs) 0;
  }
  
  .nav-cta {
    display: none;
  }
  
  .hero-category {
    padding: var(--spacing-lg) 0;
  }
  
  .hero-category h1 {
    font-size: 2rem;
  }
  
  .hero-category .lead {
    font-size: 1rem;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
    text-align: center;
  }
  
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .section {
    padding: var(--spacing-lg) 0;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .hero-category h1 {
    font-size: 1.75rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .stats-row {
    grid-template-columns: 1fr;
  }
  
  .process-steps {
    grid-template-columns: 1fr;
  }
}

/* roulang page: category2 */
:root{
  --bg:#0b0710;
  --bg-2:#120a1c;
  --panel:#170e26;
  --panel-2:#1e1330;
  --line:rgba(255,255,255,.08);
  --text:#f5eefb;
  --muted:#b5a8c8;
  --primary:#ff2e7e;
  --primary-2:#a259ff;
  --accent:#ffb84d;
  --ok:#3ddc97;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 20px 50px rgba(0,0,0,.45);
  --shadow-sm:0 8px 20px rgba(0,0,0,.35);
  --space:clamp(60px,7vw,110px);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul{list-style:none}
.container{width:min(1200px,92%);margin:0 auto}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,7,16,.85);backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;gap:20px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.5px}
.brand-mark{width:30px;height:30px;border-radius:9px;background:conic-gradient(from 200deg,var(--primary),var(--primary-2),var(--accent),var(--primary));box-shadow:0 4px 14px rgba(255,46,126,.5)}
.nav-menu{display:flex;gap:6px;margin-left:auto}
.nav-menu a{padding:9px 14px;border-radius:999px;font-size:15px;color:var(--muted);transition:.2s}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-menu a.active{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 6px 18px rgba(162,89,255,.35)}
.nav-cta{padding:10px 20px;border-radius:999px;background:var(--accent);color:#231400;font-weight:700;font-size:14.5px;box-shadow:0 8px 22px rgba(255,184,77,.25)}
.nav-cta:hover{color:#231400;transform:translateY(-1px)}
.nav-toggle{display:none;font-size:22px;color:#fff;padding:6px 10px}

/* Category hero */
.cat-hero{position:relative;padding:70px 0 60px;overflow:hidden;background:radial-gradient(1200px 500px at 90% -10%,rgba(162,89,255,.35),transparent 60%),radial-gradient(900px 500px at -10% 40%,rgba(255,46,126,.3),transparent 60%),var(--bg)}
.cat-hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;opacity:.18;mix-blend-mode:screen}
.cat-hero .container{position:relative;z-index:1}
.crumb{display:flex;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:20px}
.crumb a:hover{color:var(--primary)}
.crumb span{color:#fff}
.hero-lay{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,46,126,.15);border:1px solid rgba(255,46,126,.35);color:#ffbcd6;font-size:13px;font-weight:600}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
h1.hero-title{font-size:clamp(34px,4.6vw,56px);line-height:1.15;margin:18px 0 20px;font-weight:800;letter-spacing:.5px}
.hero-title em{font-style:normal;background:linear-gradient(120deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-desc{color:var(--muted);font-size:16.5px;max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:12px;font-weight:700;font-size:15px;transition:.25s}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 12px 30px rgba(162,89,255,.4)}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 16px 36px rgba(162,89,255,.55)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border:1px solid var(--line)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:520px}
.stat{padding:16px 18px;border-radius:14px;background:rgba(255,255,255,.04);border:1px solid var(--line)}
.stat b{display:block;font-size:26px;color:#fff;font-weight:800}
.stat span{font-size:13px;color:var(--muted)}
.hero-visual{position:relative;height:440px;border-radius:22px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.hero-visual img{width:100%;height:100%;object-fit:cover;border-radius:0}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(11,7,16,.9) 100%)}
.hero-visual .badge-live{position:absolute;top:18px;left:18px;padding:6px 12px;border-radius:999px;background:rgba(255,46,126,.9);color:#fff;font-size:12.5px;font-weight:700;z-index:2;display:flex;align-items:center;gap:6px}
.hero-visual .badge-live::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;animation:blink 1.2s infinite}
@keyframes blink{50%{opacity:.3}}
.hero-visual .visual-cap{position:absolute;left:20px;right:20px;bottom:20px;z-index:2}
.visual-cap h3{font-size:20px;color:#fff;margin-bottom:6px}
.visual-cap p{font-size:13.5px;color:#d6cce4}

/* Sections */
section{padding:var(--space) 0}
.sec-head{max-width:720px;margin:0 auto 44px;text-align:center}
.sec-head .kicker{display:inline-block;padding:5px 14px;border-radius:999px;background:rgba(162,89,255,.18);color:#d5b6ff;font-size:12.5px;font-weight:700;letter-spacing:1px;text-transform:uppercase;margin-bottom:16px}
.sec-head h2{font-size:clamp(26px,3vw,38px);line-height:1.25;font-weight:800;margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:15.5px}

/* Feature grid */
.features{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat-card{padding:30px 26px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);transition:.3s;position:relative;overflow:hidden}
.feat-card::before{content:"";position:absolute;left:0;top:0;width:60px;height:60px;background:radial-gradient(circle at 0 0,rgba(255,46,126,.35),transparent 70%);opacity:0;transition:.3s}
.feat-card:hover{transform:translateY(-4px);border-color:rgba(255,46,126,.4);box-shadow:var(--shadow-sm)}
.feat-card:hover::before{opacity:1}
.feat-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:22px;background:linear-gradient(135deg,rgba(255,46,126,.2),rgba(162,89,255,.2));border:1px solid rgba(255,46,126,.3);margin-bottom:18px}
.feat-card h3{font-size:19px;margin-bottom:10px;font-weight:700}
.feat-card p{color:var(--muted);font-size:14.5px}

/* Category showcase */
.showcase{background:var(--bg-2)}
.show-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;grid-template-rows:220px 220px;gap:18px}
.show-card{position:relative;border-radius:var(--radius);overflow:hidden;cursor:pointer;background:#000}
.show-card img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:.5s}
.show-card:hover img{transform:scale(1.06)}
.show-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.85) 100%)}
.show-card .card-body{position:absolute;left:20px;right:20px;bottom:18px;z-index:2}
.show-card .tag{display:inline-block;padding:4px 10px;background:rgba(255,46,126,.85);color:#fff;font-size:12px;font-weight:600;border-radius:6px;margin-bottom:10px}
.show-card h4{font-size:18px;color:#fff;margin-bottom:4px}
.show-card p{font-size:13px;color:#cfc3dc}
.show-card.hero-item{grid-row:span 2}
.show-card.hero-item h4{font-size:22px}

/* Timeline / steps */
.flow{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{padding:26px 22px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);position:relative}
.step-num{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:16px;margin-bottom:16px;box-shadow:0 6px 16px rgba(255,46,126,.4)}
.step h4{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}

/* Scenarios */
.scenes .scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene{padding:28px 24px;border-radius:var(--radius);background:linear-gradient(160deg,var(--panel) 0%,var(--panel-2) 100%);border:1px solid var(--line);transition:.3s}
.scene:hover{transform:translateY(-3px);border-color:rgba(162,89,255,.4)}
.scene .emoji{font-size:32px;margin-bottom:14px;display:block}
.scene h4{font-size:18px;margin-bottom:10px}
.scene p{color:var(--muted);font-size:14.5px;margin-bottom:14px}
.scene .check{display:flex;flex-direction:column;gap:6px}
.scene .check li{font-size:13.5px;color:#c8bcd8;padding-left:22px;position:relative}
.scene .check li::before{content:"✓";position:absolute;left:0;top:0;color:var(--ok);font-weight:700}

/* Split content */
.split{background:var(--bg-2)}
.split-lay{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.split-img{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.split-img img{border-radius:0;height:460px;object-fit:cover;width:100%}
.split-img .float{position:absolute;left:20px;bottom:20px;padding:14px 18px;background:rgba(11,7,16,.85);border-radius:12px;border:1px solid var(--line);backdrop-filter:blur(10px)}
.split-img .float b{color:var(--accent);font-size:22px;display:block}
.split-img .float span{font-size:12.5px;color:var(--muted)}
.split-txt h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:18px;line-height:1.3}
.split-txt p{color:var(--muted);margin-bottom:20px;font-size:15.5px}
.split-list{display:flex;flex-direction:column;gap:14px;margin-bottom:26px}
.split-list li{display:flex;gap:14px;padding:14px 16px;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--radius-sm)}
.split-list .dot{width:10px;height:10px;border-radius:50%;background:var(--primary);flex-shrink:0;margin-top:8px;box-shadow:0 0 8px var(--primary)}
.split-list b{display:block;color:#fff;margin-bottom:4px;font-size:15px}
.split-list span{color:var(--muted);font-size:13.5px}

/* FAQ */
.faq{background:var(--bg)}
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s}
.faq-item[open]{border-color:rgba(255,46,126,.35);box-shadow:var(--shadow-sm)}
.faq-item summary{padding:22px 26px;font-size:16px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;list-style:none;gap:20px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:24px;color:var(--primary);transition:.3s;flex-shrink:0}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .ans{padding:0 26px 22px;color:var(--muted);font-size:14.5px;line-height:1.8}

/* CTA */
.cta{background:linear-gradient(135deg,#1a0b28 0%,#28102f 100%);position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-3.webp') center/cover;opacity:.15;mix-blend-mode:screen}
.cta .container{position:relative;z-index:1;text-align:center;max-width:760px}
.cta h2{font-size:clamp(28px,3vw,40px);margin-bottom:16px;font-weight:800}
.cta p{color:var(--muted);font-size:16px;margin-bottom:30px}
.cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Footer */
.site-footer{background:#08050d;border-top:1px solid var(--line);padding:70px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px}
.footer-brand p{color:var(--muted);margin-top:16px;font-size:14px;line-height:1.8;max-width:340px}
.footer-col h4{font-size:15.5px;margin-bottom:18px;color:#fff}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col li{color:var(--muted);font-size:14px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:13px}

/* Responsive */
@media (max-width:1024px){
  .hero-lay{grid-template-columns:1fr;gap:34px}
  .hero-visual{height:360px}
  .feat-grid,.scene-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .show-grid{grid-template-columns:1fr 1fr;grid-template-rows:auto}
  .show-card.hero-item{grid-column:span 2;grid-row:auto;height:280px}
  .show-card{height:220px}
  .split-lay{grid-template-columns:1fr;gap:34px}
  .split-img img{height:340px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .nav-menu{position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--bg-2);padding:10px;gap:2px;transform:translateY(-10px);opacity:0;pointer-events:none;transition:.25s;border-bottom:1px solid var(--line)}
  .nav-menu.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-menu a{width:100%}
  .nav-toggle{display:inline-block;margin-left:auto}
  .nav-cta{display:none}
  .hero-stats{grid-template-columns:repeat(3,1fr);gap:10px}
  .stat{padding:12px}
  .stat b{font-size:20px}
}
@media (max-width:520px){
  .cat-hero{padding:44px 0 40px}
  .feat-grid,.scene-grid,.steps,.show-grid{grid-template-columns:1fr}
  .show-card.hero-item{grid-column:auto}
  .footer-grid{grid-template-columns:1fr}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%;justify-content:center}
  .hero-stats{grid-template-columns:repeat(3,1fr)}
  .stat b{font-size:18px}
  .stat span{font-size:11.5px}
}

/* roulang page: category3 */
:root {
  --bg-cream: #F7F4EF;
  --bg-surface: #FBF9F5;
  --bg-white: #FFFFFF;
  --border-warm: #E7E1D7;
  --text-ink: #1F2421;
  --text-muted: #5C635D;
  --accent-terra: #C4612F;
  --accent-hover: #A94E22;
  --accent-tint: #F2E3D6;
  --dark-warm: #1F2421;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-soft: 0 2px 12px rgba(31, 36, 33, 0.06);
  --shadow-hover: 0 4px 20px rgba(31, 36, 33, 0.12);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 300;
  line-height: 1.6;
  color: var(--text-ink);
  background: var(--bg-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

button, input {
  font-family: inherit;
  border: none;
  outline: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(251, 249, 245, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-warm);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 18px;
  color: var(--text-ink);
}

.brand-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent-terra), var(--accent-hover));
  border-radius: 8px;
}

.nav-toggle {
  display: none;
  background: none;
  font-size: 28px;
  cursor: pointer;
  color: var(--text-ink);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 8px;
  margin: 0;
}

.nav-menu a {
  display: block;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 400;
  color: var(--text-muted);
  transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--accent-terra);
  background: var(--accent-tint);
}

.nav-cta {
  padding: 10px 24px;
  background: var(--accent-terra);
  color: var(--bg-white);
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

.hero-category {
  position: relative;
  padding: 80px 0 100px;
  background: linear-gradient(135deg, rgba(196, 97, 47, 0.08), rgba(196, 97, 47, 0.03));
  overflow: hidden;
}

.hero-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity: 0.08;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.hero-eyebrow {
  display: inline-block;
  padding: 6px 16px;
  background: var(--accent-tint);
  color: var(--accent-terra);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-category h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 56px;
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  color: var(--text-ink);
}

.hero-category h1 em {
  font-style: italic;
  color: var(--accent-terra);
}

.hero-category .lead {
  font-size: 19px;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 40px;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  padding: 14px 32px;
  background: var(--accent-terra);
  color: var(--bg-white);
  border-radius: var(--radius-pill);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-secondary {
  padding: 14px 32px;
  background: var(--bg-white);
  color: var(--text-ink);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-pill);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  border-color: var(--accent-terra);
  color: var(--accent-terra);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.section {
  padding: 80px 0;
}

.section-header {
  max-width: 680px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 42px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--text-ink);
}

.section-title em {
  font-style: italic;
  color: var(--accent-terra);
}

.section-desc {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-muted);
  font-weight: 300;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  width: 52px;
  height: 52px;
  background: var(--accent-tint);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--text-ink);
}

.feature-card p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
  font-weight: 300;
}

.video-showcase {
  background: var(--bg-surface);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 32px;
}

.video-card {
  background: var(--bg-white);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.video-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.video-card:hover .video-thumb img {
  transform: scale(1.05);
}

.video-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 12px;
  background: rgba(31, 36, 33, 0.85);
  color: var(--bg-white);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
  backdrop-filter: blur(8px);
}

.video-info {
  padding: 20px;
}

.video-title {
  font-size: 17px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-ink);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

.video-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.tag {
  padding: 4px 10px;
  background: var(--accent-tint);
  color: var(--accent-terra);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
}

.types-section {
  background: var(--bg-white);
}

.types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.type-card {
  position: relative;
  height: 200px;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}

.type-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(31, 36, 33, 0.75), rgba(31, 36, 33, 0.1));
  z-index: 1;
}

.type-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.type-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.type-card:hover img {
  transform: scale(1.08);
}

.type-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  z-index: 2;
  color: var(--bg-white);
}

.type-content h3 {
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 6px;
}

.type-content p {
  font-size: 14px;
  opacity: 0.9;
  font-weight: 300;
}

.process-section {
  background: var(--bg-surface);
}

.process-list {
  max-width: 800px;
  margin: 0 auto;
}

.process-item {
  display: flex;
  gap: 24px;
  margin-bottom: 40px;
  padding: 32px;
  background: var(--bg-white);
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.process-item:hover {
  box-shadow: var(--shadow-soft);
}

.process-number {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  background: var(--accent-tint);
  color: var(--accent-terra);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 600;
}

.process-content h3 {
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 10px;
  color: var(--text-ink);
}

.process-content p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
  font-weight: 300;
}

.stats-section {
  background: var(--dark-warm);
  color: var(--bg-white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 48px;
  text-align: center;
}

.stat-item h3 {
  font-size: 48px;
  font-weight: 600;
  color: var(--accent-terra);
  margin-bottom: 12px;
  font-family: 'Playfair Display', Georgia, serif;
}

.stat-item p {
  font-size: 16px;
  opacity: 0.85;
  font-weight: 300;
}

.faq-section {
  background: var(--bg-white);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 24px;
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-surface);
}

.faq-question {
  width: 100%;
  padding: 24px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  background: none;
  text-align: left;
  font-size: 17px;
  font-weight: 500;
  color: var(--text-ink);
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--accent-terra);
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-tint);
  color: var(--accent-terra);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  transition: var(--transition);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-content {
  padding: 0 28px 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-muted);
  font-weight: 300;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--accent-terra), var(--accent-hover));
  color: var(--bg-white);
  text-align: center;
}

.cta-section h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 46px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.cta-section p {
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 40px;
  opacity: 0.95;
  font-weight: 300;
}

.cta-section .btn-primary {
  background: var(--bg-white);
  color: var(--accent-terra);
  font-size: 17px;
  padding: 16px 40px;
}

.cta-section .btn-primary:hover {
  background: var(--bg-surface);
  transform: translateY(-2px);
}

.site-footer {
  background: var(--dark-warm);
  color: var(--bg-white);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .brand {
  margin-bottom: 20px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  opacity: 0.75;
  font-weight: 300;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 20px;
  color: var(--bg-white);
}

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

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  font-size: 14px;
  opacity: 0.75;
  transition: var(--transition);
  font-weight: 300;
}

.footer-col ul li a:hover {
  opacity: 1;
  color: var(--accent-terra);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(231, 225, 215, 0.15);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  opacity: 0.65;
  flex-wrap: wrap;
  gap: 16px;
}

@media (max-width: 1024px) {
  .hero-category h1 {
    font-size: 46px;
  }
  
  .section-title {
    font-size: 36px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  
  .nav-menu {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 16px;
    gap: 0;
    border-bottom: 1px solid var(--border-warm);
    box-shadow: var(--shadow-soft);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  
  .nav-menu.open {
    max-height: 400px;
  }
  
  .nav-menu li {
    width: 100%;
  }
  
  .nav-menu a {
    display: block;
    padding: 12px 16px;
  }
  
  .nav-cta {
    display: none;
  }
  
  .hero-category {
    padding: 60px 0 80px;
  }
  
  .hero-category h1 {
    font-size: 36px;
  }
  
  .hero-category .lead {
    font-size: 17px;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
    justify-content: center;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 32px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .video-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .types-grid {
    grid-template-columns: 1fr;
  }
  
  .process-item {
    flex-direction: column;
    padding: 24px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .cta-section h2 {
    font-size: 34px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  
  .hero-category h1 {
    font-size: 30px;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .stat-item h3 {
    font-size: 40px;
  }
}

/* roulang page: category4 */
:root{
  --bg:#0b0714;
  --bg-2:#140b24;
  --surface:#1a1230;
  --surface-2:#241844;
  --border:#2f2255;
  --text:#f4eaff;
  --muted:#a89bc9;
  --primary:#c94dff;
  --primary-2:#7a3cff;
  --accent:#ff5aa8;
  --gold:#ffcf5c;
  --radius-s:10px;
  --radius:16px;
  --radius-l:22px;
  --shadow-s:0 6px 18px rgba(0,0,0,.35);
  --shadow:0 18px 40px rgba(122,60,255,.28);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft Yahei","Helvetica Neue",Arial,sans-serif;
  background:radial-gradient(1200px 600px at 10% -10%,rgba(201,77,255,.18),transparent 60%),
             radial-gradient(900px 500px at 90% 0%,rgba(255,90,168,.15),transparent 60%),
             var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-s)}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.4px}
p{margin:0}

.container{max-width:1200px;margin:0 auto;padding:0 22px}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,7,20,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:#fff}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:conic-gradient(from 210deg,var(--primary),var(--accent),var(--gold),var(--primary-2),var(--primary));
  box-shadow:0 0 0 2px rgba(255,255,255,.06),inset 0 0 12px rgba(255,255,255,.35);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px;background:var(--bg);border-radius:6px;
}
.nav-menu{display:flex;gap:6px;margin-left:26px;flex:1}
.nav-menu a{
  display:inline-block;padding:8px 14px;border-radius:999px;
  font-size:15px;color:var(--muted);font-weight:500;
  transition:background .2s,color .2s;
}
.nav-menu a:hover{color:#fff;background:rgba(201,77,255,.12)}
.nav-menu a.active{
  color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:var(--shadow-s);
}
.nav-cta{
  padding:10px 18px;border-radius:999px;font-weight:600;font-size:14px;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  color:#fff !important;box-shadow:var(--shadow-s);
}
.nav-cta:hover{transform:translateY(-1px);color:#fff !important}
.nav-toggle{display:none;font-size:22px;color:#fff;padding:6px 10px;border-radius:8px}

/* ===== Category Hero ===== */
.cat-hero{
  position:relative;overflow:hidden;
  padding:80px 0 70px;
  border-bottom:1px solid var(--border);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(11,7,20,.55),rgba(11,7,20,.9)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  z-index:-1;
}
.hero-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(201,77,255,.15);border:1px solid rgba(201,77,255,.4);
  color:#e9d1ff;margin-bottom:18px;
}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.cat-hero h1{
  font-size:52px;line-height:1.15;margin-bottom:20px;
  background:linear-gradient(120deg,#fff 20%,#e9c3ff 55%,#ffb0d8 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.cat-hero .lead{font-size:17px;color:#d6cce9;max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:12px;font-weight:600;font-size:15px;
  transition:transform .2s,box-shadow .2s,background .2s;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-2px);color:#fff}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid var(--border);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-stats{
  display:flex;gap:36px;margin-top:36px;padding-top:28px;
  border-top:1px dashed var(--border);
}
.hero-stats div span{display:block;font-size:28px;font-weight:800;color:#fff}
.hero-stats div small{font-size:13px;color:var(--muted)}

.hero-visual{
  position:relative;aspect-ratio:4/5;border-radius:var(--radius-l);
  overflow:hidden;box-shadow:var(--shadow);
  transform:rotate(-2deg);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-l)}
.hero-visual::after{
  content:"HD · 4K · 里番 · 同人 · Live2D";
  position:absolute;left:18px;bottom:18px;right:18px;
  padding:10px 14px;font-size:13px;color:#fff;
  background:rgba(11,7,20,.55);backdrop-filter:blur(6px);
  border-radius:12px;border:1px solid rgba(255,255,255,.14);
  letter-spacing:1px;
}
.hero-visual .float-badge{
  position:absolute;top:16px;right:16px;
  background:var(--gold);color:#3a2500;font-weight:700;
  font-size:12px;padding:6px 12px;border-radius:999px;
}

/* ===== Sections base ===== */
section{padding:78px 0}
.section-head{max-width:720px;margin:0 auto 46px;text-align:center}
.section-head .kicker{
  display:inline-block;padding:4px 12px;border-radius:6px;
  background:rgba(255,90,168,.12);color:var(--accent);
  font-size:13px;letter-spacing:2px;margin-bottom:14px;
}
.section-head h2{font-size:36px;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px}

/* ===== Feature grid ===== */
.features{background:linear-gradient(180deg,transparent,rgba(36,24,68,.35),transparent)}
.feature-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);
}
.feature-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px 26px;
  transition:transform .25s,border-color .25s,box-shadow .25s;
  position:relative;overflow:hidden;
}
.feature-card:hover{transform:translateY(-6px);border-color:rgba(201,77,255,.55);box-shadow:var(--shadow)}
.feature-card .num{
  font-size:44px;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1.5px var(--primary);
  margin-bottom:14px;
}
.feature-card h3{font-size:20px;margin-bottom:10px;color:#fff}
.feature-card p{color:var(--muted);font-size:14.5px}
.feature-card::after{
  content:"";position:absolute;right:-30px;bottom:-30px;
  width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,77,255,.18),transparent 70%);
}

/* ===== Sub-categories ===== */
.subcat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.subcat{
  border-radius:var(--radius);overflow:hidden;
  background:var(--surface);border:1px solid var(--border);
  transition:transform .25s,box-shadow .25s;
  display:flex;flex-direction:column;
}
.subcat:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.subcat .cover{aspect-ratio:4/3;overflow:hidden;position:relative}
.subcat .cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s}
.subcat:hover .cover img{transform:scale(1.08)}
.subcat .cover .tag{
  position:absolute;top:12px;left:12px;
  background:rgba(11,7,20,.7);color:#fff;font-size:12px;
  padding:4px 10px;border-radius:6px;letter-spacing:1px;
}
.subcat .info{padding:18px 18px 22px}
.subcat h3{font-size:17px;margin-bottom:8px;color:#fff}
.subcat p{font-size:13.5px;color:var(--muted);min-height:44px}
.subcat .meta{
  display:flex;justify-content:space-between;align-items:center;
  margin-top:14px;padding-top:14px;border-top:1px dashed var(--border);
  font-size:12.5px;color:var(--muted);
}
.subcat .meta strong{color:var(--gold)}

/* ===== Scenes / who ===== */
.scenes-wrap{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.scenes-image{
  border-radius:var(--radius-l);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow);
  aspect-ratio:5/4;
}
.scenes-image img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-l)}
.scene-list{display:flex;flex-direction:column;gap:16px}
.scene-item{
  display:flex;gap:16px;padding:18px 20px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);
  transition:border-color .25s,background .25s;
}
.scene-item:hover{border-color:rgba(201,77,255,.5);background:var(--surface-2)}
.scene-item .icon{
  width:44px;height:44px;flex-shrink:0;border-radius:12px;
  background:linear-gradient(135deg,var(--primary-2),var(--primary));
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;color:#fff;
}
.scene-item h4{font-size:16.5px;color:#fff;margin-bottom:4px}
.scene-item p{font-size:14px;color:var(--muted)}

/* ===== Process timeline ===== */
.process{background:linear-gradient(180deg,rgba(20,11,36,.6),transparent)}
.timeline{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;
}
.timeline::before{
  content:"";position:absolute;left:5%;right:5%;top:34px;height:2px;
  background:linear-gradient(90deg,transparent,var(--primary),var(--accent),transparent);
}
.step{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:26px 22px;text-align:center;
  position:relative;
}
.step .dot{
  width:44px;height:44px;margin:0 auto 16px;border-radius:50%;
  background:var(--bg);border:2px solid var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;color:var(--primary);font-size:17px;
  box-shadow:0 0 0 6px rgba(201,77,255,.15);
}
.step h4{font-size:16px;color:#fff;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--muted)}

/* ===== Tag cloud ===== */
.tag-cloud{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
  max-width:900px;margin:0 auto;
}
.tag-cloud span{
  padding:8px 16px;border-radius:999px;font-size:14px;
  background:var(--surface);border:1px solid var(--border);color:#e0d3ff;
  transition:background .2s,border-color .2s,color .2s;cursor:default;
}
.tag-cloud span:hover{background:rgba(201,77,255,.15);border-color:var(--primary);color:#fff}
.tag-cloud span.hot{background:linear-gradient(135deg,var(--accent),var(--primary));border-color:transparent;color:#fff}

/* ===== FAQ ===== */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;
}
.faq-q{
  width:100%;text-align:left;padding:20px 24px;
  font-size:16px;font-weight:600;color:#fff;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-q .plus{
  width:26px;height:26px;border-radius:50%;
  background:rgba(201,77,255,.16);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;flex-shrink:0;transition:transform .3s;
}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
  padding:0 24px;color:var(--muted);font-size:14.5px;
}
.faq-item.open .faq-a{max-height:260px;padding:0 24px 20px}
.faq-item.open .plus{transform:rotate(45deg)}

/* ===== CTA ===== */
.cta-block{
  border-radius:var(--radius-l);padding:60px 50px;
  background:
    linear-gradient(135deg,rgba(201,77,255,.85),rgba(122,60,255,.85)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-block h2{font-size:32px;color:#fff;margin-bottom:10px}
.cta-block p{color:rgba(255,255,255,.85);max-width:520px;font-size:15px}
.cta-block .btn{background:#fff;color:#5a1aa0}
.cta-block .btn:hover{background:#ffe9fa;color:#5a1aa0}

/* ===== Footer ===== */
.site-footer{
  margin-top:40px;padding:60px 0 24px;
  background:#08050f;border-top:1px solid var(--border);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--border);
}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:14px;max-width:320px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:1px}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:var(--muted)}
.footer-col ul li a{color:var(--muted)}
.footer-col ul li a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;justify-content:space-between;padding-top:22px;
  font-size:13px;color:var(--muted);flex-wrap:wrap;gap:10px;
}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .cat-hero h1{font-size:42px}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .subcat-grid{grid-template-columns:repeat(3,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .timeline::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .nav-toggle{display:inline-block;margin-left:auto}
  .nav-menu{
    display:none;position:absolute;left:0;right:0;top:72px;
    flex-direction:column;padding:16px 20px;gap:4px;
    background:var(--bg-2);border-bottom:1px solid var(--border);
  }
  .nav-menu.open{display:flex}
  .nav-menu a{padding:12px 14px;border-radius:10px}
  .nav-cta{display:none}
  .scenes-wrap{grid-template-columns:1fr;gap:36px}
  .cta-block{padding:44px 28px}
  .cta-block h2{font-size:26px}
  section{padding:60px 0}
  .section-head h2{font-size:28px}
}
@media (max-width:520px){
  .cat-hero{padding:56px 0 48px}
  .cat-hero h1{font-size:32px}
  .hero-stats{gap:20px;flex-wrap:wrap}
  .feature-grid,.subcat-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-block{padding:36px 22px}
  .cta-block h2{font-size:22px}
  .hero-visual{aspect-ratio:4/4}
}

/* roulang page: category5 */
:root{
  --bg:#0b0611;
  --bg-2:#140a1e;
  --surface:#170d24;
  --surface-2:#1f1330;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.16);
  --text:#f5eefb;
  --text-dim:#b7a8c9;
  --muted:#8a7ba0;
  --primary:#ff2e7e;
  --primary-2:#ff6a3d;
  --accent:#7a3dff;
  --live:#ff3355;
  --success:#22d38d;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 20px 50px rgba(0,0,0,.45);
  --shadow-sm:0 8px 20px rgba(0,0,0,.35);
  --gap:24px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(1200px 600px at 15% -10%,rgba(255,46,126,.22),transparent 60%),
    radial-gradient(900px 500px at 90% 10%,rgba(122,61,255,.20),transparent 60%),
    linear-gradient(180deg,var(--bg) 0,var(--bg-2) 100%);
  background-attachment:fixed;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--primary)}
button{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,6,17,.78);
  backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.3px}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:conic-gradient(from 200deg,var(--primary),var(--accent),var(--primary-2),var(--primary));
  box-shadow:0 0 0 3px rgba(255,46,126,.15);
}
.nav-menu{list-style:none;margin:0;padding:0;display:flex;gap:6px;flex:1;justify-content:center}
.nav-menu a{
  display:inline-flex;align-items:center;
  padding:9px 15px;border-radius:999px;
  color:var(--text-dim);font-size:15px;font-weight:500;
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-menu a.active{color:#fff;background:linear-gradient(120deg,var(--primary),var(--accent));box-shadow:0 8px 20px rgba(255,46,126,.35)}
.nav-cta{
  padding:10px 20px;border-radius:999px;
  background:linear-gradient(120deg,var(--primary-2),var(--primary));
  color:#fff;font-weight:700;font-size:14px;
  box-shadow:0 10px 24px rgba(255,106,61,.35);
}
.nav-cta:hover{color:#fff;transform:translateY(-1px)}
.nav-toggle{display:none;background:transparent;border:1px solid var(--border-strong);color:#fff;font-size:20px;width:42px;height:42px;border-radius:12px;cursor:pointer}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:70px 0 60px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity:.32;filter:saturate(120%);
  z-index:0;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,6,17,.4),rgba(11,6,17,.85) 70%,var(--bg-2));
  z-index:1;
}
.hero .container{position:relative;z-index:2}
.hero-top{display:flex;align-items:center;gap:10px;margin-bottom:20px;flex-wrap:wrap}
.live-dot{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,51,85,.15);border:1px solid rgba(255,51,85,.4);
  color:#ffb0b8;font-size:13px;font-weight:600;
}
.live-dot i{width:8px;height:8px;border-radius:50%;background:var(--live);box-shadow:0 0 12px var(--live);animation:pulse 1.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.crumb{color:var(--muted);font-size:13px}
.crumb a:hover{color:var(--primary)}
.hero h1{
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.15;font-weight:800;margin:0 0 18px;
  background:linear-gradient(120deg,#fff,#ffd4e5 45%,#c9b3ff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  max-width:920px;
}
.hero p.lead{
  font-size:18px;color:#e6d9f2;max-width:760px;margin:0 0 30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:12px;
  font-weight:700;font-size:15px;cursor:pointer;
  border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s;
}
.btn-primary{background:linear-gradient(120deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 14px 30px rgba(255,46,126,.4)}
.btn-primary:hover{transform:translateY(-2px);color:#fff}
.btn-ghost{background:rgba(255,255,255,.06);border-color:var(--border-strong);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  margin-top:44px;
  padding:22px;
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--border);
  backdrop-filter:blur(6px);
}
.stat b{display:block;font-size:26px;font-weight:800;background:linear-gradient(120deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:var(--text-dim);font-size:13px}

/* Sections */
section{padding:70px 0;position:relative}
.section-head{max-width:760px;margin:0 auto 44px;text-align:center}
.eyebrow{
  display:inline-block;padding:5px 14px;border-radius:999px;
  background:rgba(255,46,126,.12);color:#ffa1c1;
  font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase;
  border:1px solid rgba(255,46,126,.25);margin-bottom:14px;
}
.section-head h2{font-size:clamp(26px,3.2vw,38px);margin:0 0 14px;font-weight:800;color:#fff}
.section-head p{color:var(--text-dim);font-size:16px;margin:0}

/* Live grid */
.live-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.live-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:var(--surface);border:1px solid var(--border);
  transition:transform .25s,box-shadow .25s,border-color .25s;
  box-shadow:var(--shadow-sm);
}
.live-card:hover{transform:translateY(-4px);border-color:rgba(255,46,126,.35);box-shadow:0 24px 44px rgba(255,46,126,.18)}
.live-thumb{position:relative;aspect-ratio:4/5;overflow:hidden;background:#100820}
.live-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.live-card:hover .live-thumb img{transform:scale(1.05)}
.live-tag{
  position:absolute;top:12px;left:12px;
  background:var(--live);color:#fff;font-size:12px;font-weight:700;
  padding:4px 10px;border-radius:6px;letter-spacing:.5px;
  display:inline-flex;align-items:center;gap:6px;
}
.live-tag i{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.2s infinite}
.viewers{
  position:absolute;top:12px;right:12px;
  background:rgba(0,0,0,.55);color:#fff;font-size:12px;
  padding:4px 10px;border-radius:6px;
  display:inline-flex;align-items:center;gap:5px;
  backdrop-filter:blur(4px);
}
.live-meta{position:absolute;left:0;right:0;bottom:0;padding:16px 14px 14px;background:linear-gradient(180deg,transparent,rgba(0,0,0,.85))}
.live-name{font-weight:700;font-size:16px;color:#fff;margin:0 0 4px;display:flex;align-items:center;gap:6px}
.badge-hot{display:inline-block;font-size:11px;background:linear-gradient(120deg,var(--primary-2),var(--primary));padding:1px 6px;border-radius:4px;color:#fff;font-weight:700}
.live-info{color:#d6c6ea;font-size:12px;display:flex;gap:10px;flex-wrap:wrap}
.live-info span{display:inline-flex;align-items:center;gap:4px}

/* Feature strip */
.features{background:var(--bg-2)}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat{
  padding:28px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,var(--surface),var(--surface-2));
  border:1px solid var(--border);
  transition:transform .25s,border-color .25s;
}
.feat:hover{transform:translateY(-3px);border-color:var(--border-strong)}
.feat-icon{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(255,46,126,.2),rgba(122,61,255,.2));
  border:1px solid rgba(255,46,126,.3);
  font-size:24px;margin-bottom:16px;
}
.feat h3{margin:0 0 10px;font-size:19px;font-weight:700;color:#fff}
.feat p{margin:0;color:var(--text-dim);font-size:15px}

/* Scene */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scene{
  padding:22px 20px;border-radius:16px;
  background:var(--surface);
  border:1px solid var(--border);
  text-align:center;transition:transform .25s,background .25s;
}
.scene:hover{transform:translateY(-3px);background:var(--surface-2)}
.scene b{display:block;font-size:16px;color:#fff;margin-bottom:6px}
.scene span{color:var(--muted);font-size:13px}
.scene em{
  display:inline-block;margin-bottom:12px;
  font-style:normal;font-size:22px;
  width:44px;height:44px;line-height:44px;border-radius:12px;
  background:rgba(255,46,126,.14);color:#ff9ec0;
}

/* Flow */
.flow{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{
  position:relative;padding:26px 22px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--border);
}
.step-num{
  position:absolute;top:-18px;left:22px;
  width:44px;height:44px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;font-weight:800;font-size:20px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 22px rgba(255,46,126,.4);
}
.step h3{margin:14px 0 8px;font-size:18px;color:#fff}
.step p{margin:0;color:var(--text-dim);font-size:14px}

/* Showcase with image */
.showcase{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center}
.showcase-img{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.showcase-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/5}
.showcase-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,transparent,rgba(255,46,126,.2) 90%);
}
.showcase h2{font-size:clamp(24px,3vw,34px);margin:0 0 18px;color:#fff;font-weight:800}
.showcase p{color:var(--text-dim);font-size:16px;margin:0 0 18px}
.ck-list{list-style:none;padding:0;margin:0 0 24px}
.ck-list li{
  padding:10px 0 10px 32px;position:relative;
  color:#eadff5;font-size:15px;border-bottom:1px dashed rgba(255,255,255,.07);
}
.ck-list li:last-child{border-bottom:0}
.ck-list li::before{
  content:"";position:absolute;left:0;top:15px;
  width:20px;height:20px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 0 0 3px rgba(255,46,126,.15);
}
.ck-list li::after{
  content:"✓";position:absolute;left:5px;top:9px;color:#fff;font-size:12px;font-weight:800;
}

/* FAQ */
.faq{background:var(--bg-2)}
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
details.q{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:16px;
  padding:20px 24px;
  transition:border-color .2s,background .2s;
}
details.q[open]{border-color:rgba(255,46,126,.4);background:linear-gradient(180deg,var(--surface),var(--surface-2))}
details.q summary{
  list-style:none;cursor:pointer;
  font-weight:700;font-size:17px;color:#fff;
  display:flex;justify-content:space-between;align-items:center;gap:20px;
}
details.q summary::-webkit-details-marker{display:none}
details.q summary::after{
  content:"+";font-size:26px;color:var(--primary);font-weight:400;transition:transform .2s;
}
details.q[open] summary::after{content:"−"}
details.q p{margin:14px 0 0;color:var(--text-dim);font-size:15px;line-height:1.75}

/* CTA */
.cta{
  position:relative;overflow:hidden;padding:70px 0;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.25;
}
.cta::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(255,46,126,.75),rgba(122,61,255,.7));
  z-index:1;
}
.cta .container{position:relative;z-index:2;text-align:center}
.cta h2{font-size:clamp(26px,3.4vw,40px);margin:0 0 14px;color:#fff;font-weight:800}
.cta p{color:#f7e6f0;font-size:17px;margin:0 auto 28px;max-width:640px}
.cta .btn-primary{background:#fff;color:#c81a5b}
.cta .btn-primary:hover{background:#ffe1ec;color:#c81a5b}
.cta .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.08)}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* Footer */
.site-footer{
  background:#080410;
  padding:60px 0 30px;
  border-top:1px solid var(--border);
  color:var(--text-dim);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;margin-bottom:36px}
.footer-brand p{margin:14px 0 0;font-size:14px;color:var(--muted);line-height:1.75;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 16px;font-weight:700}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-col a{color:var(--text-dim)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  padding-top:22px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13px;color:var(--muted);
}

/* Responsive */
@media(max-width:1024px){
  .live-grid{grid-template-columns:repeat(3,1fr)}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:32px 20px}
  .showcase{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:768px){
  .nav-menu{
    position:absolute;left:0;right:0;top:70px;
    flex-direction:column;background:rgba(11,6,17,.98);
    padding:14px;gap:6px;border-bottom:1px solid var(--border);
    max-height:0;overflow:hidden;transition:max-height .3s;
  }
  .nav-menu.open{max-height:520px;padding:18px}
  .nav-menu a{width:100%;padding:12px 16px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-cta{display:none}
  .hero{padding:50px 0 40px}
  section{padding:56px 0}
  .live-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media(max-width:520px){
  .hero-stats{grid-template-columns:1fr 1fr;padding:16px;gap:12px}
  .stat b{font-size:22px}
  .feat-grid,.scene-grid,.flow-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .live-grid{grid-template-columns:1fr 1fr}
  .live-name{font-size:14px}
  .btn{padding:12px 20px;font-size:14px}
}