/* roulang page: index */
:root{
  --bg:#0b0710;
  --bg-2:#140b1c;
  --surface:#1a1024;
  --surface-2:#22132f;
  --line:rgba(255,255,255,.08);
  --text:#f4eef7;
  --muted:#a99cb8;
  --primary:#ff2d78;
  --primary-2:#ff6ea6;
  --accent:#8a4bff;
  --gold:#ffcf5c;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-sm:0 6px 18px rgba(0,0,0,.35);
  --container:1200px;
  --tr:.25s ease;
}
*,*::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:var(--bg);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--primary-2)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 22px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,7,16,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.brand{
  display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:.5px;
}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);
  display:grid;place-items:center;color:#fff;font-weight:900;
  box-shadow:0 8px 22px rgba(255,45,120,.45);
}
.brand-name{background:linear-gradient(90deg,#fff,#ffb7d1);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{
  padding:10px 14px;border-radius:10px;font-size:15px;color:var(--muted);
  font-weight:500;transition:all var(--tr);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#fff;background:linear-gradient(90deg,rgba(255,45,120,.18),rgba(138,75,255,.18));box-shadow:inset 0 0 0 1px rgba(255,45,120,.35)}
.nav-cta{
  background:linear-gradient(90deg,var(--primary),var(--accent));
  padding:10px 20px;border-radius:999px;color:#fff !important;font-weight:600;font-size:14px;
  box-shadow:0 8px 20px rgba(255,45,120,.35);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,45,120,.45)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,.06);align-items:center;justify-content:center}
.nav-toggle span{width:20px;height:2px;background:#fff;position:relative;display:block}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:#fff}
.nav-toggle span::before{top:-6px}.nav-toggle span::after{top:6px}

/* Hero */
.hero{
  position:relative;
  padding:90px 0 110px;
  overflow:hidden;
  background:
    linear-gradient(180deg,rgba(11,7,16,.55) 0%,rgba(11,7,16,.85) 60%,var(--bg) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(1000px 400px at 15% 10%,rgba(255,45,120,.25),transparent 60%),
             radial-gradient(800px 400px at 85% 30%,rgba(138,75,255,.28),transparent 60%);
}
.hero-inner{position:relative;z-index:2;max-width:900px}
.age-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,45,120,.15);border:1px solid rgba(255,45,120,.4);
  color:#ffb7d1;font-size:13px;padding:7px 14px;border-radius:999px;font-weight:600;
  margin-bottom:22px;
}
.age-badge::before{content:"18+";background:var(--primary);color:#fff;padding:2px 8px;border-radius:999px;font-size:11px}
.hero h1{
  font-size:clamp(34px,5.2vw,60px);
  line-height:1.15;font-weight:900;margin:0 0 22px;
  letter-spacing:.5px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(90deg,#ff6ea6,#ffcf5c 60%,#8a4bff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{
  font-size:18px;color:#d8cee5;max-width:720px;margin:0 0 34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-weight:600;font-size:15px;
  transition:all var(--tr);border:1px solid transparent;
}
.btn-primary{background:linear-gradient(90deg,var(--primary),var(--accent));color:#fff;box-shadow:0 12px 26px rgba(255,45,120,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(255,45,120,.5);color:#fff}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  margin-top:60px;max-width:820px;
}
.hero-stat{
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  padding:20px 18px;border-radius:var(--radius);
  backdrop-filter:blur(8px);
}
.hero-stat b{display:block;font-size:26px;font-weight:800;color:#fff;letter-spacing:.5px}
.hero-stat span{color:var(--muted);font-size:13px}

/* Section base */
section{padding:80px 0}
.section-head{max-width:720px;margin:0 auto 46px;text-align:center}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:2px;text-transform:uppercase;
  color:var(--primary-2);font-weight:700;margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(26px,3.5vw,38px);margin:0 0 14px;font-weight:800;color:#fff;
}
.section-head p{color:var(--muted);font-size:16px;margin:0}

/* Categories */
.cats{background:var(--bg-2)}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cat-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);
  transition:transform var(--tr),box-shadow var(--tr);
  display:block;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.cat-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.cat-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.cat-card:hover .cat-thumb img{transform:scale(1.06)}
.cat-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(11,7,16,.9) 100%);
}
.cat-tag{
  position:absolute;top:14px;left:14px;z-index:2;
  background:rgba(255,45,120,.85);color:#fff;font-size:12px;
  padding:5px 12px;border-radius:999px;font-weight:600;
}
.cat-body{padding:20px 22px 24px}
.cat-body h3{margin:0 0 8px;font-size:19px;font-weight:700;color:#fff}
.cat-body p{margin:0 0 14px;color:var(--muted);font-size:14px;line-height:1.6}
.cat-more{color:var(--primary-2);font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:4px}
.cat-more::after{content:"→";transition:transform var(--tr)}
.cat-card:hover .cat-more::after{transform:translateX(4px)}

/* Features */
.features{background:var(--bg)}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat{
  padding:32px 28px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,var(--surface),var(--surface-2));
  border:1px solid var(--line);
  transition:transform var(--tr),border-color var(--tr);
}
.feat:hover{transform:translateY(-4px);border-color:rgba(255,45,120,.35)}
.feat-icon{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(255,45,120,.2),rgba(138,75,255,.2));
  border:1px solid rgba(255,45,120,.35);
  color:var(--primary-2);font-size:22px;font-weight:800;
  margin-bottom:20px;
}
.feat h3{margin:0 0 10px;font-size:19px;font-weight:700;color:#fff}
.feat p{margin:0;color:var(--muted);font-size:15px}

/* Showcase split */
.showcase{
  background:linear-gradient(180deg,var(--bg),var(--bg-2));
}
.show-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.show-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--line);
}
.show-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.play-btn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:82px;height:82px;border-radius:50%;
  background:rgba(255,45,120,.9);color:#fff;display:grid;place-items:center;
  box-shadow:0 20px 44px rgba(255,45,120,.45);
  animation:pulse 2.2s infinite;
}
.play-btn::before{
  content:"";display:block;width:0;height:0;
  border-left:22px solid #fff;border-top:14px solid transparent;border-bottom:14px solid transparent;
  margin-left:6px;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(255,45,120,.55)}
  50%{box-shadow:0 0 0 22px rgba(255,45,120,0)}
}
.show-text h2{font-size:clamp(24px,3vw,34px);margin:0 0 18px;font-weight:800;color:#fff}
.show-text p{color:var(--muted);font-size:16px;margin:0 0 22px}
.check-list{list-style:none;padding:0;margin:0 0 28px}
.check-list li{
  position:relative;padding:10px 0 10px 34px;color:#e6dcf0;font-size:15px;
  border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"✓";position:absolute;left:0;top:10px;
  width:22px;height:22px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;font-size:12px;font-weight:700;display:grid;place-items:center;
}

/* Latest posts */
.latest{background:var(--bg-2)}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:transform var(--tr),box-shadow var(--tr);
  display:flex;flex-direction:column;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.post-thumb{aspect-ratio:16/10;overflow:hidden;position:relative}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.06)}
.post-cat{
  position:absolute;top:12px;left:12px;
  background:rgba(0,0,0,.6);color:#fff;font-size:12px;padding:4px 10px;border-radius:999px;
  backdrop-filter:blur(6px);
}
.post-body{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column}
.post-body h3{margin:0 0 10px;font-size:17px;font-weight:700;color:#fff;line-height:1.45}
.post-body h3 a:hover{color:var(--primary-2)}
.post-body p{margin:0 0 14px;color:var(--muted);font-size:14px;flex:1}
.post-meta{
  display:flex;justify-content:space-between;align-items:center;
  color:var(--muted);font-size:12px;padding-top:14px;border-top:1px solid var(--line);
}
.post-meta a{color:var(--primary-2);font-weight:600}
.empty-tip{
  grid-column:1/-1;text-align:center;padding:60px 20px;
  background:var(--surface);border-radius:var(--radius-lg);border:1px dashed var(--line);
  color:var(--muted);
}

/* Popular tags */
.tags-wrap{background:var(--bg)}
.tag-cloud{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;max-width:900px;margin:0 auto}
.tag{
  padding:9px 18px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  color:#d8cee5;font-size:14px;transition:all var(--tr);
}
.tag:hover{background:linear-gradient(90deg,var(--primary),var(--accent));color:#fff;border-color:transparent;transform:translateY(-2px)}

/* Testimonials */
.social-proof{background:var(--bg-2)}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.quote{
  background:var(--surface);padding:26px 26px 24px;border-radius:var(--radius-lg);
  border:1px solid var(--line);position:relative;
}
.quote::before{
  content:"”";position:absolute;top:-14px;left:20px;
  font-size:80px;color:var(--primary);line-height:1;font-family:Georgia,serif;
}
.quote p{margin:14px 0 20px;color:#e6dcf0;font-size:15px;line-height:1.7}
.quote-author{display:flex;align-items:center;gap:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:16px;
}
.quote-author b{display:block;color:#fff;font-size:14px}
.quote-author span{color:var(--muted);font-size:12px}
.stars{color:var(--gold);font-size:13px;letter-spacing:2px}

/* FAQ */
.faq{background:var(--bg)}
.faq-list{max-width:840px;margin:0 auto}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);margin-bottom:14px;overflow:hidden;
  transition:border-color var(--tr);
}
.faq-item[open]{border-color:rgba(255,45,120,.4)}
.faq-item summary{
  padding:20px 24px;font-weight:600;font-size:16px;color:#fff;
  cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:24px;color:var(--primary-2);transition:transform var(--tr);
  font-weight:300;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{margin:0;padding:0 24px 22px;color:var(--muted);font-size:15px}

/* CTA */
.cta-band{
  position:relative;padding:80px 0;
  background:
    linear-gradient(120deg,rgba(255,45,120,.85),rgba(138,75,255,.75)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.cta-inner{text-align:center;max-width:760px;margin:0 auto;position:relative}
.cta-inner h2{font-size:clamp(26px,3.5vw,38px);margin:0 0 16px;color:#fff;font-weight:800}
.cta-inner p{color:rgba(255,255,255,.9);font-size:17px;margin:0 0 30px}
.cta-inner .btn-primary{background:#fff;color:var(--primary);box-shadow:0 12px 30px rgba(0,0,0,.25)}
.cta-inner .btn-primary:hover{background:#fff;color:var(--accent)}
.cta-inner .btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}

/* Footer */
.site-footer{
  background:#08050c;border-top:1px solid var(--line);
  padding:70px 0 30px;color:var(--muted);
}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px;
}
.foot-brand p{margin:14px 0 20px;font-size:14px;line-height:1.7}
.foot-col h4{color:#fff;font-size:15px;margin:0 0 18px;font-weight:700}
.foot-col ul{list-style:none;padding:0;margin:0}
.foot-col li{margin-bottom:10px;font-size:14px}
.foot-col a:hover{color:var(--primary-2)}
.foot-bottom{
  border-top:1px solid var(--line);padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:13px;
}
.foot-warn{
  background:rgba(255,45,120,.08);border:1px solid rgba(255,45,120,.3);
  padding:14px 18px;border-radius:12px;font-size:13px;color:#ffb7d1;margin-bottom:30px;
}

@media (max-width:1024px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .feat-grid,.post-grid,.quote-grid{grid-template-columns:repeat(2,1fr)}
  .show-grid{grid-template-columns:1fr;gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  section{padding:60px 0}
  .hero{padding:70px 0 80px}
  .nav-links{
    display:none;position:absolute;top:72px;left:0;right:0;
    background:rgba(11,7,16,.98);flex-direction:column;padding:16px;gap:4px;
    border-bottom:1px solid var(--line);
  }
  .nav-links.open{display:flex}
  .nav-links a{width:100%;padding:14px}
  .nav-toggle{display:flex}
}
@media (max-width:520px){
  .cat-grid,.feat-grid,.post-grid,.quote-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn{justify-content:center}
}

/* roulang page: article */
:root{
  --c-bg:#0b0710;
  --c-bg-soft:#140b1c;
  --c-panel:#1a1024;
  --c-panel-2:#221430;
  --c-line:rgba(255,255,255,.08);
  --c-text:#f4ecf7;
  --c-mute:#b7a7c5;
  --c-dim:#8a7a99;
  --c-brand:#ff2f7a;
  --c-brand-2:#ff7a3d;
  --c-accent:#8a4bff;
  --c-warn:#ffb347;
  --c-ok:#4ade80;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --shadow-1:0 10px 30px rgba(255,47,122,.15);
  --shadow-2:0 20px 60px rgba(0,0,0,.45);
  --grad:linear-gradient(135deg,#ff2f7a 0%,#ff7a3d 60%,#8a4bff 100%);
  --grad-soft:linear-gradient(135deg,rgba(255,47,122,.18),rgba(138,75,255,.14));
  --gap-s:12px;
  --gap-m:20px;
  --gap-l:36px;
  --gap-xl:64px;
  --f-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--f-sans);
  color:var(--c-text);
  background:
    radial-gradient(1200px 600px at 90% -10%,rgba(255,47,122,.18),transparent 60%),
    radial-gradient(900px 500px at -10% 20%,rgba(138,75,255,.16),transparent 60%),
    var(--c-bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border-radius:var(--r-sm)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{list-style:none;padding:0;margin:0}
.container{width:min(1180px,92%);margin:0 auto}
::selection{background:var(--c-brand);color:#fff}

.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(11,7,16,.72);
  border-bottom:1px solid var(--c-line);
}
.site-header .nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.5px}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:18px;box-shadow:var(--shadow-1);
}
.brand-name{font-size:18px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-links a{
  padding:10px 14px;border-radius:999px;font-size:14.5px;color:var(--c-mute);
  transition:.25s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#fff;background:rgba(255,47,122,.15);box-shadow:inset 0 0 0 1px rgba(255,47,122,.3)}
.nav-cta{background:var(--grad)!important;color:#fff!important;box-shadow:var(--shadow-1)}
.nav-cta:hover{transform:translateY(-1px)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.06);position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:50%;top:50%;width:18px;height:2px;background:#fff;transform:translate(-50%,-50%);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* Article Hero */
.article-hero{
  position:relative;padding:56px 0 32px;overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.28;filter:saturate(1.1);
  z-index:-2;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,7,16,.4) 0%,rgba(11,7,16,.85) 70%,var(--c-bg) 100%);
  z-index:-1;
}
.crumb{color:var(--c-dim);font-size:13.5px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:22px}
.crumb a{color:var(--c-mute)}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.5}
.article-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--grad-soft);
  border:1px solid rgba(255,47,122,.35);
  font-size:12.5px;color:#ffd0e0;margin-bottom:14px;
}
.article-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-brand);display:inline-block;box-shadow:0 0 8px var(--c-brand)}
.article-title{
  font-size:clamp(28px,4.4vw,46px);
  line-height:1.25;font-weight:800;margin:0 0 18px;
  letter-spacing:.5px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:18px;color:var(--c-mute);font-size:14px;
  padding-bottom:10px;
}
.article-meta .m{display:inline-flex;align-items:center;gap:6px}
.article-meta .dot{width:4px;height:4px;background:var(--c-dim);border-radius:50%}

/* Layout */
.article-wrap{padding:20px 0 40px}
.article-grid{display:grid;grid-template-columns:1fr 320px;gap:36px;align-items:start}

/* Main content card */
.article-body{
  background:var(--c-panel);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:36px 40px;
  box-shadow:var(--shadow-2);
  position:relative;
}
.article-body::before{
  content:"";position:absolute;left:0;top:0;height:4px;width:100%;
  background:var(--grad);border-radius:var(--r-lg) var(--r-lg) 0 0;
}
.notice-bar{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:var(--r-md);
  background:rgba(255,179,71,.08);
  border:1px solid rgba(255,179,71,.28);
  color:#ffd8a3;font-size:13.5px;margin-bottom:28px;
}
.notice-bar .ico{
  flex:0 0 28px;width:28px;height:28px;border-radius:8px;
  background:rgba(255,179,71,.18);color:var(--c-warn);
  display:inline-flex;align-items:center;justify-content:center;font-weight:800;
}

.article-content{font-size:16.5px;color:#ece2f2}
.article-content p{margin:0 0 16px}
.article-content h2,.article-content h3,.article-content h4{
  color:#fff;font-weight:800;margin:32px 0 14px;line-height:1.35;
}
.article-content h2{font-size:24px;padding-left:14px;border-left:4px solid var(--c-brand)}
.article-content h3{font-size:20px}
.article-content h4{font-size:17px;color:#ffd0e0}
.article-content a{color:#ff92b8;border-bottom:1px dashed rgba(255,146,184,.45)}
.article-content a:hover{color:#fff;border-bottom-color:#fff}
.article-content img{margin:18px 0;border-radius:var(--r-md);box-shadow:var(--shadow-1)}
.article-content ul,.article-content ol{padding-left:22px;margin:0 0 18px;color:#ede2f4}
.article-content ul li,.article-content ol li{margin:8px 0;list-style:disc}
.article-content ol li{list-style:decimal}
.article-content blockquote{
  margin:20px 0;padding:14px 18px;border-radius:var(--r-md);
  background:rgba(138,75,255,.08);border-left:4px solid var(--c-accent);color:#e6dcf3;
}
.article-content strong{color:#fff}
.article-content code{background:rgba(255,255,255,.06);padding:2px 8px;border-radius:6px;font-size:14px}

.not-found{
  text-align:center;padding:60px 20px;
}
.not-found h2{font-size:22px;margin:0 0 12px}
.not-found p{color:var(--c-mute);margin:0 0 22px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-weight:700;font-size:14.5px;
  transition:.25s;cursor:pointer;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(255,47,122,.35)}
.btn-ghost{background:rgba(255,255,255,.05);color:#fff;border:1px solid var(--c-line)}
.btn-ghost:hover{background:rgba(255,255,255,.1)}

/* Action bar */
.action-bar{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  margin-top:32px;padding:18px 20px;border-radius:var(--r-md);
  background:linear-gradient(135deg,rgba(255,47,122,.08),rgba(138,75,255,.08));
  border:1px solid var(--c-line);
}
.action-bar .tags{display:flex;flex-wrap:wrap;gap:8px}
.tag-chip{
  padding:6px 12px;border-radius:999px;font-size:12.5px;color:#ffd0e0;
  background:rgba(255,47,122,.12);border:1px solid rgba(255,47,122,.28);
}
.action-bar .btns{display:flex;gap:10px}

/* Sidebar */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-panel);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:22px;
}
.side-card h3{
  margin:0 0 16px;font-size:16px;color:#fff;
  display:flex;align-items:center;gap:10px;
}
.side-card h3::before{
  content:"";width:4px;height:16px;border-radius:2px;background:var(--grad);
}
.play-lines{display:grid;gap:10px}
.line-btn{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--c-line);
  font-size:14px;transition:.25s;
}
.line-btn:hover{background:rgba(255,47,122,.1);border-color:rgba(255,47,122,.35);transform:translateX(2px)}
.line-btn .ln{display:inline-flex;align-items:center;gap:10px;color:#fff}
.line-btn .dot-ok{width:8px;height:8px;border-radius:50%;background:var(--c-ok);box-shadow:0 0 8px var(--c-ok)}
.line-btn .speed{font-size:12px;color:var(--c-mute)}

.hot-list{display:grid;gap:14px}
.hot-item{
  display:grid;grid-template-columns:88px 1fr;gap:12px;align-items:center;
  padding:8px;border-radius:12px;transition:.25s;border:1px solid transparent;
}
.hot-item:hover{background:rgba(255,255,255,.04);border-color:var(--c-line)}
.hot-item .cover{
  position:relative;width:88px;height:60px;overflow:hidden;border-radius:10px;
}
.hot-item .cover img{width:100%;height:100%;object-fit:cover;border-radius:10px}
.hot-item .cover::after{
  content:"▶";position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:16px;
  background:rgba(0,0,0,.35);opacity:0;transition:.25s;
}
.hot-item:hover .cover::after{opacity:1}
.hot-item .t{font-size:13.5px;color:#eae0f0;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-item .m{font-size:11.5px;color:var(--c-dim);margin-top:4px;display:flex;gap:8px}

.info-list{display:grid;gap:10px;font-size:13.5px}
.info-list .row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px dashed rgba(255,255,255,.06)}
.info-list .row:last-child{border-bottom:0}
.info-list .row .k{color:var(--c-mute)}
.info-list .row .v{color:#fff}

.cate-cloud{display:flex;flex-wrap:wrap;gap:8px}
.cate-cloud a{
  padding:8px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);color:#eee;
  transition:.25s;
}
.cate-cloud a:hover{background:var(--grad);border-color:transparent;color:#fff;transform:translateY(-1px)}

/* Related section */
.related{padding:20px 0 60px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:22px;gap:16px;flex-wrap:wrap}
.section-head h2{
  margin:0;font-size:24px;color:#fff;font-weight:800;
  display:flex;align-items:center;gap:12px;
}
.section-head h2::before{content:"";width:5px;height:22px;border-radius:3px;background:var(--grad)}
.section-head .more{color:var(--c-mute);font-size:14px}
.section-head .more:hover{color:#fff}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.rel-card{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;transition:.3s;position:relative;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(255,47,122,.35);box-shadow:var(--shadow-1)}
.rel-card .cv{position:relative;aspect-ratio:16/10;overflow:hidden}
.rel-card .cv img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:.5s}
.rel-card:hover .cv img{transform:scale(1.06)}
.rel-card .cv::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.7) 100%);
}
.rel-card .badge{
  position:absolute;top:10px;left:10px;
  padding:4px 10px;border-radius:999px;font-size:11.5px;
  background:rgba(0,0,0,.55);backdrop-filter:blur(6px);color:#fff;
  border:1px solid rgba(255,255,255,.12);
}
.rel-card .dur{
  position:absolute;bottom:10px;right:10px;
  padding:3px 8px;border-radius:6px;font-size:11.5px;
  background:rgba(0,0,0,.6);color:#fff;
}
.rel-card .info{padding:14px 16px}
.rel-card .info h4{margin:0 0 8px;font-size:14.5px;line-height:1.45;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:42px}
.rel-card .info .meta{display:flex;justify-content:space-between;font-size:12px;color:var(--c-mute)}

/* FAQ */
.faq-sec{padding:20px 0 70px}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--c-panel);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:18px 22px;transition:.25s;
}
.faq-item:hover{border-color:rgba(255,47,122,.28)}
.faq-item summary{
  list-style:none;cursor:pointer;font-weight:700;color:#fff;font-size:15.5px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";width:28px;height:28px;border-radius:8px;
  background:rgba(255,47,122,.12);color:var(--c-brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;
  transition:.3s;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg);background:var(--grad);color:#fff}
.faq-item .a{margin-top:14px;color:var(--c-mute);font-size:14.5px;line-height:1.75}

/* CTA */
.cta{
  padding:0 0 70px;
}
.cta-inner{
  position:relative;overflow:hidden;
  padding:44px 40px;border-radius:var(--r-lg);
  background:
    linear-gradient(135deg,rgba(255,47,122,.85),rgba(138,75,255,.85)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-inner h3{margin:0 0 8px;font-size:26px;color:#fff}
.cta-inner p{margin:0;color:rgba(255,255,255,.9);font-size:14.5px}
.cta-inner .btns{display:flex;gap:12px;flex-wrap:wrap}
.cta .btn-primary{background:#fff;color:#7a1a45}
.cta .btn-primary:hover{background:#fff;box-shadow:0 14px 40px rgba(0,0,0,.35)}
.cta .btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.35);color:#fff}
.cta .btn-ghost:hover{background:rgba(255,255,255,.22)}

/* Footer */
.site-footer{
  background:linear-gradient(180deg,transparent 0,var(--c-bg-soft) 40%);
  border-top:1px solid var(--c-line);padding:40px 0 24px;margin-top:20px;
}
.foot-warn{
  padding:12px 16px;border-radius:12px;
  background:rgba(255,179,71,.08);border:1px solid rgba(255,179,71,.28);
  color:#ffd8a3;font-size:13px;margin-bottom:26px;text-align:center;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
.foot-brand p{color:var(--c-mute);font-size:13.5px;margin:14px 0 0;line-height:1.75}
.foot-col h4{margin:0 0 14px;font-size:14.5px;color:#fff}
.foot-col ul li{margin:8px 0}
.foot-col a{color:var(--c-mute);font-size:13.5px}
.foot-col a:hover{color:#fff}
.foot-bottom{
  margin-top:30px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  color:var(--c-dim);font-size:12.5px;
}

/* Responsive */
@media (max-width:1024px){
  .article-grid{grid-template-columns:1fr}
  .sidebar{position:static}
  .related-grid{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-links{
    position:absolute;top:70px;right:4%;
    display:none;flex-direction:column;align-items:stretch;
    padding:12px;border-radius:14px;background:rgba(20,11,28,.96);
    border:1px solid var(--c-line);min-width:200px;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px}
  .article-body{padding:26px 22px}
  .article-hero{padding:36px 0 20px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{padding:30px 24px}
  .cta-inner h3{font-size:22px}
}
@media (max-width:520px){
  .related-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr}
  .article-body{padding:22px 18px}
  .article-content{font-size:15.5px}
  .action-bar{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --c-bg:#0d0910;
  --c-bg-2:#161018;
  --c-surface:#1c1420;
  --c-line:#2a1f30;
  --c-text:#f2e8f1;
  --c-muted:#a99cb0;
  --c-primary:#ff3d7f;
  --c-primary-2:#ff7a3c;
  --c-accent:#8b5cf6;
  --c-gold:#f7c774;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-1:0 6px 24px rgba(0,0,0,.35);
  --shadow-2:0 18px 60px rgba(255,61,127,.25);
  --grad:linear-gradient(135deg,#ff3d7f 0%,#ff7a3c 55%,#f7c774 100%);
  --grad-2:linear-gradient(135deg,#8b5cf6,#ff3d7f);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}

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

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(13,9,16,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
}
.site-header .nav{display:flex;align-items:center;justify-content:space-between;padding:16px 24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:18px;font-weight:800;
  box-shadow:var(--shadow-2);
}
.brand-name{font-size:18px;letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  padding:10px 14px;border-radius:10px;font-size:14.5px;color:var(--c-muted);
  transition:background .2s,color .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#fff;background:rgba(255,61,127,.15)}
.nav-links .nav-cta{
  background:var(--grad);color:#fff;padding:10px 20px;border-radius:999px;font-weight:600;
  box-shadow:0 8px 22px rgba(255,61,127,.35);
}
.nav-links .nav-cta:hover{color:#fff;transform:translateY(-1px)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.06);position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:10px;right:10px;height:2px;background:#fff;border-radius:2px;content:"";
}
.nav-toggle span{top:19px}
.nav-toggle span::before{top:-7px;left:0;right:0}
.nav-toggle span::after{top:7px;left:0;right:0}

/* Hero */
.cat-hero{
  position:relative;
  padding:96px 0 80px;
  overflow:hidden;
  background:linear-gradient(180deg,rgba(13,9,16,.35),rgba(13,9,16,.85) 70%,var(--c-bg)),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse at 15% 20%,rgba(255,61,127,.25),transparent 55%),radial-gradient(ellipse at 85% 80%,rgba(139,92,246,.25),transparent 55%);
}
.cat-hero .container{position:relative;z-index:1}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,61,127,.15);border:1px solid rgba(255,61,127,.35);
  color:#ffb3cc;font-size:13px;margin-bottom:20px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 4px rgba(255,61,127,.25)}
.cat-hero h1{
  font-size:52px;line-height:1.15;font-weight:800;letter-spacing:-.5px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  max-width:820px;margin-bottom:22px;
}
.hero-lead{font-size:17px;color:var(--c-muted);max-width:720px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-weight:600;font-size:15px;
  transition:transform .2s,box-shadow .2s,background .2s;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 30px rgba(255,61,127,.4)}
.btn-primary:hover{transform:translateY(-2px);color:#fff}
.btn-ghost{border:1px solid rgba(255,255,255,.2);color:#fff;background:rgba(255,255,255,.04)}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:820px}
.hero-stat{
  background:rgba(28,20,32,.7);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:20px;backdrop-filter:blur(6px);
}
.hero-stat b{display:block;font-size:28px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stat span{color:var(--c-muted);font-size:13px;margin-top:4px;display:block}

/* Section base */
section{padding:80px 0}
.sec-head{max-width:720px;margin:0 auto 48px;text-align:center}
.sec-eyebrow{
  display:inline-block;padding:4px 12px;border-radius:999px;
  background:rgba(139,92,246,.15);color:#c4b5fd;font-size:12.5px;letter-spacing:1px;margin-bottom:14px;
  text-transform:uppercase;
}
.sec-head h2{font-size:36px;font-weight:800;letter-spacing:-.3px;margin-bottom:14px}
.sec-head p{color:var(--c-muted);font-size:16px}

/* Features */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feat-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:32px 28px;transition:transform .25s,border-color .25s,box-shadow .25s;
  position:relative;overflow:hidden;
}
.feat-card::before{
  content:"";position:absolute;inset:0;background:var(--grad);opacity:0;transition:opacity .25s;
  border-radius:inherit;z-index:-1;
}
.feat-card:hover{transform:translateY(-4px);border-color:rgba(255,61,127,.4);box-shadow:var(--shadow-2)}
.feat-icon{
  width:52px;height:52px;border-radius:14px;
  background:linear-gradient(135deg,rgba(255,61,127,.15),rgba(139,92,246,.15));
  display:grid;place-items:center;font-size:22px;margin-bottom:20px;
  border:1px solid var(--c-line);
}
.feat-card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.feat-card p{color:var(--c-muted);font-size:14.5px}

/* Scenes */
.scenes{background:var(--c-bg-2)}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene-card{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  aspect-ratio:3/4;background:#000;
  transition:transform .3s;
}
.scene-card:hover{transform:scale(1.02)}
.scene-card img{width:100%;height:100%;object-fit:cover;filter:brightness(.85);transition:filter .3s,transform .3s}
.scene-card:hover img{filter:brightness(1);transform:scale(1.05)}
.scene-body{
  position:absolute;inset:auto 0 0 0;padding:22px 20px;
  background:linear-gradient(180deg,transparent,rgba(13,9,16,.9));
}
.scene-tag{
  display:inline-block;padding:3px 10px;border-radius:999px;
  background:rgba(255,61,127,.85);color:#fff;font-size:12px;margin-bottom:10px;
}
.scene-body h3{font-size:17px;font-weight:700;margin-bottom:6px}
.scene-body p{font-size:13px;color:#d8cdd7}

/* Process */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:28px 24px;position:relative;
}
.step-num{
  font-size:44px;font-weight:800;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:14px;display:block;
}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step p{color:var(--c-muted);font-size:14px}

/* Library */
.library{background:linear-gradient(180deg,var(--c-bg),var(--c-bg-2))}
.lib-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.lib-visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-2);border:1px solid var(--c-line);
}
.lib-visual img{width:100%;height:auto}
.lib-visual::after{
  content:"HD 1080P";position:absolute;top:16px;left:16px;
  padding:6px 14px;border-radius:8px;background:rgba(0,0,0,.6);
  color:#fff;font-size:12px;font-weight:600;backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.15);
}
.lib-content h2{font-size:34px;font-weight:800;margin-bottom:18px;line-height:1.25}
.lib-content > p{color:var(--c-muted);margin-bottom:26px}
.lib-list{display:grid;gap:16px}
.lib-item{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:var(--r-md);background:rgba(28,20,32,.6);border:1px solid var(--c-line)}
.lib-item .dot{
  width:10px;height:10px;border-radius:50%;background:var(--grad);margin-top:8px;flex:0 0 10px;
  box-shadow:0 0 0 4px rgba(255,61,127,.15);
}
.lib-item h4{font-size:15.5px;font-weight:700;margin-bottom:4px}
.lib-item p{font-size:13.5px;color:var(--c-muted);margin:0}

/* Reasons */
.reasons-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.reason{
  padding:28px;border-radius:var(--r-lg);
  background:var(--c-surface);border:1px solid var(--c-line);
  display:grid;grid-template-columns:60px 1fr;gap:20px;align-items:flex-start;
}
.reason-num{
  width:60px;height:60px;border-radius:16px;
  background:var(--grad-2);color:#fff;
  display:grid;place-items:center;font-size:22px;font-weight:800;
}
.reason h3{font-size:18px;font-weight:700;margin-bottom:8px}
.reason p{color:var(--c-muted);font-size:14.5px}

/* FAQ */
.faq{background:var(--c-bg-2)}
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:22px 26px;
  transition:border-color .2s;
}
.faq-item:hover{border-color:rgba(255,61,127,.4)}
.faq-item h3{font-size:16.5px;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:12px}
.faq-item h3::before{
  content:"Q";width:26px;height:26px;border-radius:8px;
  background:var(--grad);color:#fff;display:grid;place-items:center;
  font-size:13px;font-weight:800;flex:0 0 26px;
}
.faq-item p{color:var(--c-muted);font-size:14.5px;padding-left:38px}

/* CTA */
.cta-wrap{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(255,61,127,.12),rgba(139,92,246,.12)),url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cta-wrap::before{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,9,16,.7),rgba(13,9,16,.9));
}
.cta-inner{position:relative;text-align:center;padding:20px 0}
.cta-inner h2{font-size:38px;font-weight:800;margin-bottom:16px;letter-spacing:-.3px}
.cta-inner p{max-width:600px;margin:0 auto 30px;color:#d8cdd7;font-size:16px}

/* Footer */
.site-footer{background:#0a070d;padding:60px 0 30px;border-top:1px solid var(--c-line)}
.foot-warn{
  padding:14px 20px;border-radius:var(--r-md);
  background:rgba(255,61,127,.08);border:1px solid rgba(255,61,127,.25);
  color:#ffb3cc;font-size:13.5px;margin-bottom:40px;text-align:center;
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:32px;border-bottom:1px solid var(--c-line)}
.foot-brand p{color:var(--c-muted);font-size:14px;margin-top:16px}
.foot-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.foot-col li{margin-bottom:10px}
.foot-col a,.foot-col li{color:var(--c-muted);font-size:14px}
.foot-col a:hover{color:#fff}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:24px;color:var(--c-muted);font-size:13px;gap:20px;flex-wrap:wrap;
}

/* Responsive */
@media (max-width:1024px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .lib-grid{grid-template-columns:1fr;gap:32px}
  .cat-hero h1{font-size:42px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .nav-links{
    display:none;position:absolute;top:70px;left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:4px;padding:16px;
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
    box-shadow:var(--shadow-1);
  }
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .cat-hero{padding:64px 0 56px}
  .cat-hero h1{font-size:34px}
  .sec-head h2{font-size:28px}
  .lib-content h2{font-size:26px}
  .cta-inner h2{font-size:28px}
  section{padding:60px 0}
  .reasons-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr 1fr;gap:12px}
  .hero-stat{padding:14px}
  .hero-stat b{font-size:22px}
  .features-grid,.scene-grid,.process-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .cat-hero h1{font-size:28px}
  .btn{padding:12px 22px;font-size:14px}
  .container{padding:0 18px}
}

/* roulang page: category2 */
:root{
  --c-bg:#0d0a14;
  --c-bg-2:#141020;
  --c-surface:#1b1526;
  --c-surface-2:#221a30;
  --c-border:#2c2340;
  --c-text:#f2ecff;
  --c-muted:#a89ec7;
  --c-primary:#ff2e6a;
  --c-primary-2:#ff6a3d;
  --c-accent:#8a5cff;
  --c-gold:#ffc857;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-xl:30px;
  --shadow-1:0 8px 24px rgba(0,0,0,.35);
  --shadow-2:0 18px 50px rgba(255,46,106,.25);
  --grad:linear-gradient(135deg,#ff2e6a 0%,#8a5cff 100%);
  --grad-2:linear-gradient(135deg,#ff6a3d 0%,#ff2e6a 60%,#8a5cff 100%);
  --sp-1:8px;--sp-2:14px;--sp-3:22px;--sp-4:34px;--sp-5:56px;--sp-6:84px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--c-bg);color:var(--c-text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.5px}
p{margin:0}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 22px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(13,10,20,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--c-border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:var(--grad);color:#fff;font-size:20px;box-shadow:var(--shadow-2)}
.brand-name{font-size:19px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:10px 14px;border-radius:999px;font-size:14.5px;color:var(--c-muted);position:relative}
.nav-links a:hover{color:var(--c-text);background:rgba(255,255,255,.04)}
.nav-links a.active{color:var(--c-text);background:rgba(255,46,106,.14);box-shadow:inset 0 0 0 1px rgba(255,46,106,.35)}
.nav-links .nav-cta{background:var(--grad);color:#fff;padding:10px 22px;font-weight:600;box-shadow:var(--shadow-2)}
.nav-links .nav-cta:hover{color:#fff;transform:translateY(-1px)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.05);position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:20px;height:2px;background:var(--c-text);border-radius:2px}
.nav-toggle span::before{transform:translate(-50%,-8px)}
.nav-toggle span::after{transform:translate(-50%,6px)}

/* Category Hero - different from home */
.cat-hero{position:relative;padding:var(--sp-5) 0 var(--sp-4);overflow:hidden;background:
  radial-gradient(1200px 500px at 85% -10%,rgba(255,46,106,.28),transparent 60%),
  radial-gradient(900px 500px at 10% 100%,rgba(138,92,255,.28),transparent 60%),
  linear-gradient(180deg,#0d0a14 0%,#141020 100%);
  border-bottom:1px solid var(--c-border)}
.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}
.crumbs{position:relative;display:flex;gap:8px;color:var(--c-muted);font-size:13.5px;margin-bottom:22px}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs span{color:var(--c-text)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;background:rgba(255,46,106,.14);color:#ffb6c9;font-size:13px;border:1px solid rgba(255,46,106,.35);font-weight:500}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 12px var(--c-primary)}
h1{font-size:52px;line-height:1.15;margin:18px 0 18px}
h1 em{font-style:normal;background:var(--grad-2);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-desc{font-size:17px;color:var(--c-muted);max-width:600px}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.meta-chip{padding:10px 16px;background:rgba(255,255,255,.04);border:1px solid var(--c-border);border-radius:var(--r-md);font-size:13.5px;color:var(--c-text)}
.meta-chip strong{color:var(--c-primary);margin-right:6px}
.hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 28px;border-radius:var(--r-md);font-size:15px;font-weight:600;transition:all .25s ease;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-2)}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 24px 60px rgba(255,46,106,.4)}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--c-text);border-color:var(--c-border)}
.btn-ghost:hover{background:rgba(255,255,255,.09);color:var(--c-text)}
.hero-visual{position:relative}
.hero-card{background:linear-gradient(160deg,rgba(255,46,106,.18),rgba(138,92,255,.18));border:1px solid var(--c-border);border-radius:var(--r-xl);padding:20px;box-shadow:var(--shadow-1);backdrop-filter:blur(10px)}
.hero-card .hcimg{border-radius:var(--r-lg);overflow:hidden;position:relative}
.hero-card .hcimg img{height:340px;width:100%;object-fit:cover}
.hero-card .hcimg::after{content:"1080P · 完整版";position:absolute;top:14px;left:14px;background:rgba(0,0,0,.7);color:#ffe1a8;font-size:12px;padding:6px 12px;border-radius:999px;border:1px solid rgba(255,200,87,.4)}
.hero-card .play-btn{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:74px;height:74px;border-radius:50%;background:var(--grad);display:grid;place-items:center;box-shadow:0 0 0 8px rgba(255,46,106,.2);animation:pulse 2s infinite}
.hero-card .play-btn::before{content:"";width:0;height:0;border-left:22px solid #fff;border-top:14px solid transparent;border-bottom:14px solid transparent;margin-left:6px}
@keyframes pulse{0%,100%{box-shadow:0 0 0 8px rgba(255,46,106,.2)}50%{box-shadow:0 0 0 18px rgba(255,46,106,.05)}}
.hero-card .hcinfo{padding:16px 8px 4px;display:flex;justify-content:space-between;align-items:center;color:var(--c-muted);font-size:13px}
.hero-card .hcinfo span:first-child{color:var(--c-text);font-weight:600}

/* Section */
.section{padding:var(--sp-6) 0}
.section.tight{padding:var(--sp-5) 0}
.section-head{max-width:760px;margin:0 auto var(--sp-4);text-align:center}
.eyebrow{color:var(--c-primary);font-size:13px;font-weight:600;letter-spacing:3px;text-transform:uppercase}
.section-head h2{font-size:38px;line-height:1.25;margin:12px 0 14px}
.section-head p{color:var(--c-muted);font-size:16px}

/* Feature grid */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.feat-card{background:linear-gradient(180deg,var(--c-surface),var(--c-surface-2));border:1px solid var(--c-border);border-radius:var(--r-lg);padding:32px 28px;transition:all .3s ease;position:relative;overflow:hidden}
.feat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);opacity:0;transition:opacity .3s ease}
.feat-card:hover{transform:translateY(-6px);border-color:rgba(255,46,106,.4);box-shadow:var(--shadow-2)}
.feat-card:hover::before{opacity:1}
.feat-icon{width:52px;height:52px;border-radius:14px;background:rgba(255,46,106,.14);display:grid;place-items:center;color:var(--c-primary);font-size:22px;font-weight:800;margin-bottom:20px}
.feat-card h3{font-size:20px;margin-bottom:10px}
.feat-card p{color:var(--c-muted);font-size:14.5px;line-height:1.75}

/* Type showcase */
.type-showcase{background:linear-gradient(180deg,#141020 0%,#0d0a14 100%);position:relative}
.type-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.type-card{position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:3/4;cursor:pointer;transition:transform .35s ease}
.type-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.type-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(13,10,20,.95) 100%)}
.type-card .tc-body{position:absolute;left:0;right:0;bottom:0;padding:22px;z-index:2}
.type-card .tc-badge{display:inline-block;padding:4px 10px;border-radius:999px;background:var(--grad);color:#fff;font-size:11px;font-weight:600;margin-bottom:10px}
.type-card h3{font-size:19px;margin-bottom:6px}
.type-card p{color:#d6cff0;font-size:13px}
.type-card:hover{transform:translateY(-6px)}
.type-card:hover img{transform:scale(1.06)}

/* Quality section */
.quality-wrap{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.quality-vis{position:relative}
.quality-vis .qv-main{border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--shadow-2);position:relative}
.quality-vis .qv-main img{height:440px;object-fit:cover}
.quality-vis .qv-tag{position:absolute;padding:12px 18px;border-radius:var(--r-md);background:rgba(13,10,20,.85);border:1px solid var(--c-border);backdrop-filter:blur(10px);font-size:13px;display:flex;align-items:center;gap:10px}
.quality-vis .qv-tag strong{color:var(--c-gold)}
.quality-vis .qv-tag.t1{top:24px;left:-18px}
.quality-vis .qv-tag.t2{bottom:80px;right:-18px}
.quality-vis .qv-tag.t3{bottom:20px;left:30px}
.qv-tag i{width:10px;height:10px;border-radius:50%;background:var(--c-primary)}
.quality-list{margin-top:26px}
.quality-list li{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--c-border)}
.quality-list li:last-child{border-bottom:0}
.quality-list li .qn{flex:0 0 46px;height:46px;border-radius:12px;background:var(--grad);display:grid;place-items:center;font-weight:800;color:#fff}
.quality-list li h4{font-size:17px;margin-bottom:6px}
.quality-list li p{color:var(--c-muted);font-size:14px}

/* Steps */
.steps-wrap{background:linear-gradient(180deg,var(--c-bg-2),var(--c-bg));position:relative;overflow:hidden}
.steps-wrap::before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:url('/assets/images/backpic/back-3.webp') center/cover;opacity:.06}
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{background:rgba(255,255,255,.03);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:32px 24px;position:relative;counter-increment:step;transition:all .3s ease}
.step::before{content:"0" counter(step);position:absolute;top:18px;right:22px;font-size:44px;font-weight:800;color:transparent;-webkit-text-stroke:1.5px rgba(255,46,106,.4);line-height:1}
.step h3{font-size:18px;margin:0 0 10px;padding-right:60px}
.step p{color:var(--c-muted);font-size:14px}
.step:hover{background:rgba(255,46,106,.05);border-color:rgba(255,46,106,.35);transform:translateY(-4px)}

/* Scene / usage */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;transition:all .3s ease}
.scene-card .sc-cover{height:180px;overflow:hidden;position:relative}
.scene-card .sc-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene-card:hover .sc-cover img{transform:scale(1.06)}
.scene-card .sc-cover::after{content:"完整版";position:absolute;top:14px;right:14px;background:rgba(0,0,0,.75);color:var(--c-gold);padding:4px 12px;border-radius:999px;font-size:12px;border:1px solid rgba(255,200,87,.4)}
.scene-card .sc-body{padding:24px}
.scene-card h3{font-size:19px;margin-bottom:10px}
.scene-card p{color:var(--c-muted);font-size:14px;margin-bottom:14px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{padding:5px 12px;border-radius:999px;background:rgba(138,92,255,.14);color:#c9b8ff;font-size:12px;border:1px solid rgba(138,92,255,.3)}
.scene-card:hover{transform:translateY(-6px);border-color:rgba(255,46,106,.35);box-shadow:var(--shadow-2)}

/* Compare table */
.compare{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-xl);padding:12px;overflow:hidden}
.compare table{width:100%;border-collapse:collapse}
.compare th,.compare td{padding:18px 22px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--c-border)}
.compare th{background:rgba(255,46,106,.08);color:var(--c-text);font-weight:600;font-size:14px}
.compare th:first-child{border-top-left-radius:var(--r-md)}
.compare th:last-child{border-top-right-radius:var(--r-md)}
.compare tr:last-child td{border-bottom:0}
.compare td:first-child{color:var(--c-text);font-weight:600}
.compare td{color:var(--c-muted)}
.compare .ok{color:#7fe6b4;font-weight:600}
.compare .no{color:#ff8fa8}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;transition:all .25s ease}
.faq-item summary{padding:20px 26px;cursor:pointer;font-size:16px;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:24px;color:var(--c-primary);font-weight:400;transition:transform .3s ease}
.faq-item[open]{border-color:rgba(255,46,106,.4)}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-item .fa-body{padding:0 26px 22px;color:var(--c-muted);font-size:14.5px;line-height:1.85}

/* CTA */
.cta-band{margin:var(--sp-5) 0;padding:var(--sp-5) 0;background:
  radial-gradient(600px 300px at 20% 30%,rgba(255,46,106,.25),transparent 60%),
  radial-gradient(600px 300px at 80% 70%,rgba(138,92,255,.25),transparent 60%),
  linear-gradient(135deg,#1b1526,#0d0a14);
  border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.cta-inner{display:grid;grid-template-columns:1.4fr .6fr;gap:40px;align-items:center}
.cta-inner h2{font-size:34px;line-height:1.25}
.cta-inner p{color:var(--c-muted);margin-top:14px;font-size:16px}
.cta-actions{display:flex;flex-direction:column;gap:12px}

/* Footer */
.site-footer{background:#08060d;padding:56px 0 28px;border-top:1px solid var(--c-border);color:var(--c-muted)}
.foot-warn{padding:14px 22px;border:1px dashed rgba(255,46,106,.45);color:#ffb6c9;font-size:13.5px;border-radius:var(--r-md);margin-bottom:36px;background:rgba(255,46,106,.06)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.foot-brand p{margin-top:14px;font-size:13.5px;line-height:1.8}
.foot-col h4{color:var(--c-text);margin-bottom:16px;font-size:15px}
.foot-col ul li{margin-bottom:10px;font-size:13.5px}
.foot-col ul li a:hover{color:var(--c-primary)}
.foot-bottom{margin-top:40px;padding-top:22px;border-top:1px solid var(--c-border);display:flex;justify-content:space-between;font-size:13px;flex-wrap:wrap;gap:10px}

/* Responsive */
@media (max-width:1024px){
  h1{font-size:42px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .feat-grid,.type-grid,.scene-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .quality-wrap{grid-template-columns:1fr;gap:40px}
  .cta-inner{grid-template-columns:1fr;text-align:center}
  .cta-actions{flex-direction:row;justify-content:center;flex-wrap:wrap}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:var(--c-bg-2);flex-direction:column;padding:16px;border-bottom:1px solid var(--c-border);gap:4px}
  .nav-links.open{display:flex}
  .nav-links a{width:100%;padding:12px 14px}
  .nav-toggle{display:block}
  .section{padding:var(--sp-5) 0}
  .section-head h2{font-size:28px}
  h1{font-size:34px}
  .cta-inner h2{font-size:26px}
}
@media (max-width:520px){
  .feat-grid,.type-grid,.scene-grid,.steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-card .hcimg img{height:260px}
  .quality-vis .qv-main img{height:320px}
  .compare th,.compare td{padding:12px 14px;font-size:13px}
  .container{padding:0 16px}
  h1{font-size:28px}
  .btn{padding:12px 20px;font-size:14px}
}

/* roulang page: category3 */
:root{
  --bg:#0d0a12;
  --bg-2:#15101c;
  --surface:#1c1626;
  --surface-2:#251d33;
  --border:#2f2740;
  --text:#f2ecff;
  --muted:#a89fc0;
  --primary:#ff3d7f;
  --primary-2:#ff8f4a;
  --accent:#8b5cf6;
  --gold:#ffcf70;
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 4px 14px rgba(0,0,0,.35);
  --shadow:0 18px 44px rgba(0,0,0,.45);
  --shadow-glow:0 12px 40px rgba(255,61,127,.35);
  --gap:24px;
  --container:1200px;
  --trans:.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:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:var(--text);text-decoration:none;transition:color var(--trans)}
a:hover{color:var(--primary)}
button{font-family:inherit;cursor:pointer;border:none}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.25;letter-spacing:.5px}
p{margin:0 0 1em;color:#ddd6f0}
.container{width:min(var(--container),92%);margin:0 auto}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(13,10,18,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.brand-mark{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;
  box-shadow:var(--shadow-glow);
}
.brand-name{font-size:18px;letter-spacing:1px}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-links a{
  padding:9px 14px;border-radius:999px;font-size:14.5px;color:#d8d0ec;
  transition:all var(--trans);
}
.nav-links a:hover{background:var(--surface-2);color:#fff}
.nav-links a.active{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff}
.nav-links .nav-cta{
  background:linear-gradient(135deg,var(--primary-2),var(--primary));
  color:#fff;font-weight:600;padding:9px 18px;
  box-shadow:var(--shadow-glow);
}
.nav-links .nav-cta:hover{transform:translateY(-1px)}
.nav-toggle{display:none;width:42px;height:42px;background:var(--surface-2);border-radius:10px;position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:10px;right:10px;height:2px;background:#fff;border-radius:2px;
}
.nav-toggle span{top:50%;transform:translateY(-50%)}
.nav-toggle span::before{top:-7px;left:0;right:0}
.nav-toggle span::after{top:7px;left:0;right:0}

/* Hero (category-specific, not homepage clone) */
.cat-hero{
  position:relative;padding:90px 0 70px;
  background:
    linear-gradient(135deg,rgba(13,10,18,.85) 0%,rgba(139,92,246,.55) 60%,rgba(255,61,127,.5) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 20% 30%,rgba(255,61,127,.25),transparent 55%),
             radial-gradient(circle at 80% 70%,rgba(139,92,246,.28),transparent 55%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;display:grid;grid-template-columns:1.35fr 1fr;gap:56px;align-items:center}
.crumbs{display:flex;gap:8px;align-items:center;font-size:13px;color:#d3c9ef;margin-bottom:18px}
.crumbs a{color:#d3c9ef}
.crumbs span{opacity:.6}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#ffd9e6;
  margin-bottom:20px;
}
.tag-pill i{width:6px;height:6px;background:var(--primary);border-radius:50%;display:inline-block;box-shadow:0 0 10px var(--primary)}
.cat-hero h1{
  font-size:clamp(28px,4.4vw,52px);font-weight:800;
  background:linear-gradient(90deg,#fff 0%,#ffcbd8 50%,#c9b3ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:18px;
}
.cat-hero .lead{font-size:17px;color:#eee5ff;max-width:560px;margin-bottom:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:22px;margin-bottom:28px}
.hero-stats .st{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:14px 18px;min-width:120px}
.hero-stats .st b{display:block;font-size:22px;color:#fff}
.hero-stats .st span{font-size:12.5px;color:#c8bfe0}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 24px;border-radius:999px;font-weight:600;font-size:15px;
  transition:transform var(--trans),box-shadow var(--trans),background var(--trans);
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-2px);color:#fff}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.2)}
.btn-ghost:hover{background:rgba(255,255,255,.15);color:#fff}
.hero-visual{
  position:relative;
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--shadow);
  aspect-ratio:4/5;
  background:#0a0710;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-lg)}
.hero-visual .play-badge{
  position:absolute;left:24px;bottom:24px;
  background:rgba(0,0,0,.55);backdrop-filter:blur(8px);
  padding:12px 18px;border-radius:14px;font-size:14px;color:#fff;display:flex;align-items:center;gap:10px;
  border:1px solid rgba(255,255,255,.15);
}
.hero-visual .play-badge .dot{width:10px;height:10px;background:#ff3d7f;border-radius:50%;box-shadow:0 0 12px #ff3d7f;animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero-visual .badge-top{position:absolute;top:20px;left:20px;background:linear-gradient(135deg,var(--gold),#ffb347);color:#3a1f00;font-size:12px;font-weight:700;padding:6px 12px;border-radius:999px}

/* Section base */
section{padding:80px 0;position:relative}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head .kicker{color:var(--primary);font-size:13px;letter-spacing:2px;text-transform:uppercase;font-weight:700;margin-bottom:12px;display:block}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:800;color:#fff}
.sec-head p{color:var(--muted);font-size:16px}

/* Feature grid */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feat{
  background:linear-gradient(160deg,var(--surface) 0%,var(--surface-2) 100%);
  border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 22px;transition:transform var(--trans),border-color var(--trans),box-shadow var(--trans);
}
.feat:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow)}
.feat .ico{
  width:48px;height:48px;border-radius:12px;
  background:linear-gradient(135deg,rgba(255,61,127,.2),rgba(139,92,246,.2));
  display:grid;place-items:center;font-size:22px;margin-bottom:16px;
  border:1px solid rgba(255,61,127,.3);
}
.feat h3{font-size:17px;color:#fff;margin-bottom:8px}
.feat p{font-size:14px;color:var(--muted);margin:0}

/* Scenes (适用场景) */
.scenes{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  background:var(--surface);border:1px solid var(--border);
  transition:transform var(--trans),box-shadow var(--trans);
}
.scene-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.scene-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;border-radius:0}
.scene-card:hover .scene-thumb img{transform:scale(1.06)}
.scene-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(13,10,18,.85) 100%);
}
.scene-thumb .duration{position:absolute;right:12px;top:12px;background:rgba(0,0,0,.6);color:#fff;font-size:12px;padding:4px 10px;border-radius:999px;z-index:2}
.scene-thumb .hot{position:absolute;left:12px;top:12px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-size:11px;font-weight:700;padding:4px 10px;border-radius:999px;z-index:2;letter-spacing:1px}
.scene-body{padding:18px 20px 22px}
.scene-body .label{color:var(--gold);font-size:12px;letter-spacing:1.5px;font-weight:600;margin-bottom:8px;display:block}
.scene-body h3{font-size:17px;color:#fff;margin-bottom:10px}
.scene-body p{color:var(--muted);font-size:14px;margin:0 0 14px}
.scene-meta{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:#9d94b8}
.scene-meta .stars{color:var(--gold)}

/* Process timeline */
.flow-wrap{position:relative}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.flow::before{
  content:"";position:absolute;top:34px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent),var(--primary-2));
  opacity:.4;z-index:0;
}
.flow-step{position:relative;text-align:center;z-index:1}
.flow-step .num{
  width:66px;height:66px;border-radius:50%;margin:0 auto 18px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:grid;place-items:center;font-weight:800;font-size:22px;color:#fff;
  box-shadow:var(--shadow-glow);border:4px solid var(--bg);
}
.flow-step h4{color:#fff;font-size:17px;margin-bottom:8px}
.flow-step p{color:var(--muted);font-size:14px;margin:0}

/* Article-style intro (2 col) */
.intro{background:var(--bg-2)}
.intro-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:50px;align-items:center}
.intro-text h2{font-size:clamp(24px,2.8vw,34px);color:#fff;margin-bottom:16px}
.intro-text p{color:#d0c8e8;font-size:15.5px}
.intro-list{margin-top:22px;display:grid;gap:14px}
.intro-list li{
  padding:14px 18px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-sm);display:flex;gap:14px;align-items:flex-start;
}
.intro-list li .check{
  width:26px;height:26px;border-radius:50%;background:rgba(255,61,127,.15);
  color:var(--primary);font-weight:800;display:grid;place-items:center;flex-shrink:0;font-size:14px;
}
.intro-list li strong{color:#fff;display:block;margin-bottom:2px}
.intro-list li span{color:var(--muted);font-size:13.5px}
.intro-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.intro-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/5;border-radius:var(--radius-lg)}

/* Tag cloud */
.tags-wrap{background:linear-gradient(160deg,var(--bg-2),var(--bg))}
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px}
.tag-cloud a{
  padding:10px 18px;border-radius:999px;
  background:var(--surface);border:1px solid var(--border);
  color:#d8d0ec;font-size:14px;transition:all var(--trans);
}
.tag-cloud a:hover{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border-color:transparent;transform:translateY(-2px)}
.tag-cloud a b{color:var(--gold);margin-left:6px;font-weight:500}

/* FAQ */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;transition:border-color var(--trans);
}
.faq-item:hover{border-color:var(--primary)}
.faq-q{
  padding:20px 24px;display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-weight:600;color:#fff;font-size:16px;
}
.faq-q .plus{
  flex-shrink:0;width:32px;height:32px;border-radius:50%;
  background:rgba(255,61,127,.15);color:var(--primary);
  display:grid;place-items:center;font-size:20px;font-weight:400;transition:transform var(--trans);
}
.faq-item[open] .plus{transform:rotate(45deg)}
.faq-a{padding:0 24px 22px;color:var(--muted);font-size:14.5px}
details summary{list-style:none;cursor:pointer}
details summary::-webkit-details-marker{display:none}

/* CTA */
.cta{
  background:
    linear-gradient(135deg,rgba(255,61,127,.85),rgba(139,92,246,.85)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:90px 0;text-align:center;position:relative;overflow:hidden;
}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 50%,transparent 40%,rgba(13,10,18,.5) 100%)}
.cta-inner{position:relative;max-width:760px;margin:0 auto}
.cta h2{font-size:clamp(26px,3.4vw,40px);color:#fff;margin-bottom:16px}
.cta p{color:#fff2f5;font-size:16px;margin-bottom:28px}
.cta .btn-primary{background:#fff;color:#c1224b}
.cta .btn-primary:hover{background:#fff;color:#8a1636}
.cta .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}

/* Footer */
.site-footer{background:#08060c;border-top:1px solid var(--border);padding:60px 0 30px;margin-top:0}
.foot-warn{
  background:rgba(255,61,127,.1);border:1px solid rgba(255,61,127,.35);
  color:#ffd0dd;padding:14px 20px;border-radius:var(--radius-sm);
  font-size:13.5px;margin-bottom:44px;text-align:center;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:14px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.5px}
.foot-col ul li{margin-bottom:10px}
.foot-col ul li a,.foot-col ul li{color:var(--muted);font-size:13.5px;transition:color var(--trans)}
.foot-col ul li a:hover{color:var(--primary)}
.foot-bottom{
  border-top:1px solid var(--border);padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  color:#7d7398;font-size:13px;
}

/* Responsive */
@media (max-width:1024px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr);gap:32px}
  .flow::before{display:none}
  .cat-hero-inner,.intro-grid{grid-template-columns:1fr;gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-visual{max-width:420px;aspect-ratio:4/3}
}
@media (max-width:768px){
  section{padding:60px 0}
  .cat-hero{padding:60px 0 50px}
  .nav-links{
    display:none;position:absolute;top:72px;left:0;right:0;
    background:var(--bg-2);flex-direction:column;padding:16px;gap:4px;
    border-bottom:1px solid var(--border);
  }
  .nav-links.open{display:flex}
  .nav-links a{width:100%}
  .nav-toggle{display:block}
  .feat-grid,.scene-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-stats .st{min-width:100px;flex:1}
}
@media (max-width:520px){
  .cat-hero h1{font-size:28px}
  .sec-head h2{font-size:24px}
  .btn{padding:12px 20px;font-size:14px}
  .foot-bottom{flex-direction:column;text-align:center}
}

/* roulang page: category4 */
:root{
  --bg:#0b0710;
  --bg-2:#140b1b;
  --surface:#1a1024;
  --surface-2:#22132f;
  --line:#2c1c3d;
  --text:#f4ecff;
  --muted:#a898bf;
  --brand:#ff3d7f;
  --brand-2:#8a3dff;
  --accent:#ffb547;
  --ok:#3ddc97;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 20px 60px -20px rgba(0,0,0,.6);
  --shadow-hover:0 30px 80px -20px rgba(255,61,127,.35);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:72px;
  --grad: linear-gradient(135deg,#ff3d7f 0%,#8a3dff 60%,#4b1fbf 100%);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--brand)}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
button{font-family:inherit;cursor:pointer;border:none}
ul{padding:0;margin:0;list-style:none}
h1,h2,h3,h4{margin:0 0 var(--sp-2);line-height:1.25;font-weight:700}
p{margin:0 0 var(--sp-2)}
.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:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:var(--sp-3)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;
  color:#fff;font-weight:900;font-size:18px;
  box-shadow:0 8px 20px -6px rgba(255,61,127,.6);
}
.brand-name{font-size:18px;letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  padding:10px 14px;border-radius:10px;font-size:14.5px;color:var(--muted);
  transition:all .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#fff;background:rgba(255,61,127,.12)}
.nav-links .nav-cta{
  background:var(--grad);color:#fff!important;font-weight:600;
  padding:10px 20px;box-shadow:0 8px 20px -8px rgba(255,61,127,.6);
}
.nav-links .nav-cta:hover{transform:translateY(-1px)}
.nav-toggle{
  display:none;width:40px;height:40px;background:transparent;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:8px;width:24px;height:2px;background:#fff;border-radius:2px;
}
.nav-toggle span{top:19px}
.nav-toggle span::before{top:-8px}
.nav-toggle span::after{top:8px}

/* Hero */
.hero{
  position:relative;
  padding:var(--sp-6) 0 var(--sp-5);
  overflow:hidden;
  background:
    radial-gradient(1000px 500px at 90% -10%, rgba(138,61,255,.35), transparent 60%),
    radial-gradient(700px 400px at 10% 100%, rgba(255,61,127,.25), transparent 60%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,7,16,.6),rgba(11,7,16,.92));
}
.hero .container{position:relative;z-index:1}
.hero-top{display:flex;flex-wrap:wrap;gap:var(--sp-2);margin-bottom:var(--sp-3)}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:#e6d9ff;
}
.pill .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px var(--ok)}
.hero h1{
  font-size:clamp(30px,4.6vw,54px);
  background:linear-gradient(180deg,#fff,#e0c8ff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  max-width:920px;
}
.hero .lead{
  font-size:clamp(16px,1.6vw,19px);
  color:#d5c5ea;max-width:760px;margin-bottom:var(--sp-4);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:var(--sp-2);align-items:center}
.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:var(--grad);color:#fff;box-shadow:0 14px 30px -12px rgba(255,61,127,.55)}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:var(--shadow-hover)}
.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{
  margin-top:var(--sp-5);
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-2);
}
.stat{
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  padding:20px;border-radius:var(--radius);
}
.stat b{display:block;font-size:26px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:var(--muted);font-size:13.5px}

/* Section */
section{padding:var(--sp-6) 0}
.sec-head{max-width:760px;margin-bottom:var(--sp-4)}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:2px;text-transform:uppercase;
  color:var(--brand);font-weight:600;margin-bottom:10px;
}
.sec-head h2{font-size:clamp(24px,3vw,38px);margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:16px}

/* Feature grid */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-3)}
.feature{
  background:linear-gradient(180deg,var(--surface),var(--surface-2));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:var(--sp-3);transition:transform .25s,border-color .25s,box-shadow .25s;
}
.feature:hover{transform:translateY(-4px);border-color:rgba(255,61,127,.4);box-shadow:var(--shadow-hover)}
.feature .ico{
  width:48px;height:48px;border-radius:12px;
  background:rgba(255,61,127,.12);color:var(--brand);
  display:grid;place-items:center;font-size:22px;font-weight:800;
  margin-bottom:var(--sp-2);
}
.feature h3{font-size:19px}
.feature p{color:var(--muted);font-size:14.5px;margin:0}

/* Device showcase */
.device-showcase{
  display:grid;grid-template-columns:1.05fr .95fr;gap:var(--sp-5);align-items:center;
}
.device-visual{
  position:relative;padding:var(--sp-3);
  border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(255,61,127,.14),rgba(138,61,255,.14));
  border:1px solid var(--line);
  overflow:hidden;
}
.device-visual img{width:100%;height:auto;border-radius:12px;box-shadow:var(--shadow)}
.device-visual::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.08),transparent 40%);
}
.check-list li{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line);align-items:flex-start;
}
.check-list li:last-child{border-bottom:none}
.check-list .k{
  flex-shrink:0;width:32px;height:32px;border-radius:8px;
  background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:700;font-size:14px;
}
.check-list h4{font-size:16px;margin-bottom:4px}
.check-list p{color:var(--muted);margin:0;font-size:14.5px}

/* Steps */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-3);
  counter-reset:step;
}
.step{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:var(--sp-3);
  position:relative;transition:transform .25s;
}
.step:hover{transform:translateY(-4px)}
.step .num{
  display:inline-block;
  font-size:28px;font-weight:900;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:10px;
}
.step h3{font-size:17px}
.step p{color:var(--muted);font-size:14px;margin:0}

/* Player card list */
.player-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-3)}
.pcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .25s,box-shadow .25s;
}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.pcard .thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.pcard .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s}
.pcard:hover .thumb img{transform:scale(1.06)}
.pcard .thumb::after{
  content:"▶";position:absolute;inset:0;display:grid;place-items:center;
  font-size:38px;color:#fff;text-shadow:0 4px 20px rgba(0,0,0,.6);
  background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.5));
  opacity:.9;
}
.pcard .badge{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:5px 10px;background:rgba(255,61,127,.85);color:#fff;
  font-size:12px;border-radius:6px;font-weight:600;
}
.pcard .duration{
  position:absolute;bottom:10px;right:10px;z-index:2;
  padding:3px 8px;background:rgba(0,0,0,.7);color:#fff;
  font-size:12px;border-radius:4px;
}
.pcard .body{padding:18px}
.pcard h3{font-size:16.5px;margin-bottom:8px;line-height:1.4}
.pcard .meta{display:flex;justify-content:space-between;color:var(--muted);font-size:13px}
.pcard .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tag{
  padding:3px 9px;font-size:12px;border-radius:6px;
  background:rgba(138,61,255,.14);color:#c9b3ff;border:1px solid rgba(138,61,255,.25);
}

/* Scenarios */
.scenes{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-3)}
.scene{
  display:grid;grid-template-columns:180px 1fr;gap:var(--sp-3);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:border-color .25s;
}
.scene:hover{border-color:rgba(255,61,127,.35)}
.scene .cover{height:100%;overflow:hidden}
.scene .cover img{width:100%;height:100%;object-fit:cover;border-radius:0}
.scene .info{padding:20px 20px 20px 0}
.scene h3{font-size:18px;margin-bottom:8px}
.scene p{color:var(--muted);font-size:14px;margin:0 0 12px}
.scene .mini{display:flex;gap:14px;color:#e0c8ff;font-size:13px}

/* Line quality panel */
.lines-wrap{
  background:linear-gradient(135deg,rgba(255,61,127,.08),rgba(138,61,255,.08));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:var(--sp-4);
}
.lines-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-3);margin-top:var(--sp-3)}
.line-item{
  background:rgba(11,7,16,.5);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:20px;
}
.line-item h4{font-size:15px;margin-bottom:8px;display:flex;justify-content:space-between;align-items:center}
.line-item .health{
  width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px var(--ok);
}
.line-item p{margin:0;color:var(--muted);font-size:13px}
.line-item .kbps{margin-top:12px;font-size:12.5px;color:#c9b3ff}

/* FAQ */
.faq{max-width:900px;margin:0 auto}
.faq details{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 22px;margin-bottom:12px;transition:border-color .2s;
}
.faq details[open]{border-color:rgba(255,61,127,.4)}
.faq summary{
  cursor:pointer;font-weight:600;font-size:16px;
  list-style:none;display:flex;justify-content:space-between;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--brand);transition:transform .2s}
.faq details[open] summary::after{content:"−"}
.faq details p{margin:12px 0 0;color:var(--muted);font-size:14.5px}

/* CTA */
.cta-band{
  background:
    radial-gradient(500px 300px at 20% 30%,rgba(255,61,127,.25),transparent 60%),
    radial-gradient(500px 300px at 80% 70%,rgba(138,61,255,.25),transparent 60%),
    linear-gradient(135deg,#1a0f28,#140b1b);
  border:1px solid var(--line);
  border-radius:24px;
  padding:var(--sp-5);
  text-align:center;
}
.cta-band h2{font-size:clamp(24px,3vw,36px);margin-bottom:12px}
.cta-band p{color:var(--muted);max-width:640px;margin:0 auto var(--sp-3);font-size:16px}

/* Footer */
.site-footer{
  background:#080510;border-top:1px solid var(--line);
  padding:var(--sp-5) 0 var(--sp-3);margin-top:var(--sp-6);
}
.foot-warn{
  background:rgba(255,61,127,.08);border:1px solid rgba(255,61,127,.25);
  color:#ffd0e0;padding:14px 18px;border-radius:10px;
  text-align:center;font-size:14px;margin-bottom:var(--sp-4);
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--sp-4);margin-bottom:var(--sp-4)}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:14px}
.foot-col h4{font-size:15px;margin-bottom:16px;color:#fff}
.foot-col ul li{margin-bottom:10px}
.foot-col ul li a,.foot-col ul li{color:var(--muted);font-size:14px}
.foot-col ul li a:hover{color:var(--brand)}
.foot-bottom{
  padding-top:var(--sp-3);border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  color:#7a6a91;font-size:13px;
}

/* Responsive */
@media (max-width:1024px){
  .features,.player-grid,.lines-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .device-showcase{grid-template-columns:1fr;gap:var(--sp-4)}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .scenes{grid-template-columns:1fr}
  section{padding:var(--sp-5) 0}
  .hero{padding:var(--sp-5) 0 var(--sp-4)}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:rgba(11,7,16,.98);backdrop-filter:blur(14px);
    padding:16px;border-bottom:1px solid var(--line);
    transform:translateY(-10px);opacity:0;pointer-events:none;
    transition:all .25s;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{padding:14px 16px}
  .nav-toggle{display:block}
}
@media (max-width:520px){
  .features,.player-grid,.lines-grid,.steps{grid-template-columns:1fr}
  .scene{grid-template-columns:1fr}
  .scene .cover{height:180px}
  .scene .info{padding:16px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;text-align:center}
  .cta-band{padding:var(--sp-4) var(--sp-3)}
}