/* roulang page: index */
:root{
  --c-bg:#0f0a14;
  --c-bg-soft:#1a1220;
  --c-panel:#1f1628;
  --c-panel-2:#261a33;
  --c-text:#f4ecf5;
  --c-muted:#b8a8c4;
  --c-line:#33223f;
  --c-primary:#ff2e7e;
  --c-primary-2:#ff6ba5;
  --c-accent:#ffb347;
  --c-gold:#ffd166;
  --r-sm:6px;
  --r:12px;
  --r-lg:20px;
  --sh-1:0 6px 18px rgba(0,0,0,.35);
  --sh-2:0 14px 40px rgba(255,46,126,.18);
  --sp:clamp(16px,2vw,24px);
  --f-sans:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--f-sans);
  color:var(--c-text);
  background:var(--c-bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  font-size:16px;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary-2);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{font-family:var(--f-sans);margin:0 0 .5em;line-height:1.3;letter-spacing:.5px}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
.container{width:min(1200px,92%);margin:0 auto}

/* HEADER */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(15,10,20,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;letter-spacing:1px;color:#fff}
.logo-mark{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  display:grid;place-items:center;color:#fff;font-weight:900;
  box-shadow:var(--sh-2);
}
.nav-menu{display:flex;gap:6px;flex-wrap:wrap}
.nav-menu a{
  padding:10px 16px;border-radius:999px;
  color:var(--c-muted);font-weight:500;font-size:15px;
  transition:all .2s ease;
}
.nav-menu a:hover{background:var(--c-panel);color:#fff}
.nav-menu a.active{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));color:#fff;box-shadow:var(--sh-2)}
.nav-cta{
  padding:10px 20px;border-radius:999px;font-weight:600;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#fff!important;box-shadow:var(--sh-2);
}
.nav-cta:hover{transform:translateY(-1px);color:#fff!important}
.nav-toggle{display:none;font-size:26px;color:#fff}

/* HERO */
.hero{
  position:relative;overflow:hidden;
  padding:90px 0 100px;
  background:
    linear-gradient(180deg,rgba(15,10,20,.55) 0%,rgba(15,10,20,.9) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:auto -10% -40% -10%;height:60%;
  background:radial-gradient(closest-side,rgba(255,46,126,.35),transparent 70%);
  filter:blur(20px);pointer-events:none;
}
.hero-inner{position:relative;max-width:820px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,46,126,.15);color:var(--c-primary-2);
  font-size:13px;letter-spacing:1px;border:1px solid rgba(255,46,126,.35);
  margin-bottom:20px;
}
.hero h1{
  font-size:clamp(34px,5vw,58px);
  font-weight:900;line-height:1.15;
  background:linear-gradient(135deg,#fff 30%,var(--c-primary-2) 70%,var(--c-accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:20px;
}
.hero-sub{color:var(--c-muted);font-size:18px;max-width:640px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-weight:600;font-size:15px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--c-primary),var(--c-accent));color:#fff;box-shadow:var(--sh-2)}
.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,.18)}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  margin-top:56px;max-width:820px;
}
.hero-stats li{
  background:rgba(255,255,255,.05);
  border:1px solid var(--c-line);
  padding:18px;border-radius:var(--r);
  backdrop-filter:blur(8px);
}
.hero-stats b{display:block;font-size:26px;color:#fff;font-weight:800}
.hero-stats span{color:var(--c-muted);font-size:13px}

/* SECTION BASE */
.section{padding:80px 0}
.section-head{max-width:720px;margin:0 auto 48px;text-align:center}
.section-tag{
  display:inline-block;padding:5px 12px;border-radius:6px;
  background:rgba(255,179,71,.15);color:var(--c-accent);
  font-size:12px;letter-spacing:2px;margin-bottom:14px;
}
.section h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;color:#fff}
.section-desc{color:var(--c-muted);font-size:16px}

/* CATEGORY GRID */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px}
.cat-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--c-panel);border:1px solid var(--c-line);
  transition:transform .3s ease,box-shadow .3s ease;
  min-height:280px;display:flex;flex-direction:column;justify-content:flex-end;
}
.cat-card::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,10,20,.1) 0%,rgba(15,10,20,.95) 90%);
  z-index:2;
}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1;transition:transform .5s ease}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--sh-2)}
.cat-card:hover img{transform:scale(1.08)}
.cat-body{position:relative;z-index:3;padding:22px}
.cat-badge{
  display:inline-block;padding:4px 10px;border-radius:6px;
  background:rgba(255,46,126,.75);color:#fff;font-size:12px;font-weight:600;margin-bottom:12px;
}
.cat-body h3{font-size:20px;color:#fff;margin-bottom:8px}
.cat-body p{color:#d9c9e2;font-size:14px;margin-bottom:14px}
.cat-more{color:var(--c-primary-2);font-size:13px;font-weight:600}
.cat-more::after{content:" →";transition:margin-left .2s ease}
.cat-card:hover .cat-more::after{margin-left:6px}

/* FEATURE ROWS */
.features{background:var(--c-bg-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}
.feat-item{
  padding:26px;border-radius:var(--r);
  background:var(--c-panel);border:1px solid var(--c-line);
  transition:border-color .2s ease,transform .2s ease;
}
.feat-item:hover{border-color:var(--c-primary);transform:translateY(-3px)}
.feat-icon{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#fff;font-weight:900;font-size:20px;margin-bottom:16px;
}
.feat-item h3{font-size:17px;color:#fff;margin-bottom:8px}
.feat-item p{color:var(--c-muted);font-size:14px;margin:0}

/* SHOWCASE / SPLIT */
.split{
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;
}
.split-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-2);border:1px solid var(--c-line);
}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-body h2{font-size:32px;color:#fff;margin-bottom:16px}
.split-body p{color:var(--c-muted);margin-bottom:14px}
.check-list li{
  padding:10px 0;color:#e5d8ec;font-size:15px;
  display:flex;gap:10px;border-bottom:1px dashed var(--c-line);
}
.check-list li::before{
  content:"✓";color:var(--c-primary);font-weight:800;
  width:22px;height:22px;border-radius:50%;background:rgba(255,46,126,.15);
  display:grid;place-items:center;flex-shrink:0;font-size:13px;
}

/* LATEST LIST (CMS) */
.latest-wrap{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px}
.post-card{
  background:var(--c-panel);border:1px solid var(--c-line);
  border-radius:var(--r);overflow:hidden;
  transition:transform .3s ease,border-color .2s ease,box-shadow .3s ease;
  display:flex;flex-direction:column;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--c-primary);box-shadow:var(--sh-2)}
.post-cover{aspect-ratio:16/10;overflow:hidden;background:var(--c-panel-2)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-cover img{transform:scale(1.06)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-meta{display:flex;gap:10px;font-size:12px;color:var(--c-muted);align-items:center}
.post-meta .tag{background:rgba(255,46,126,.15);color:var(--c-primary-2);padding:3px 10px;border-radius:6px}
.post-title{font-size:17px;font-weight:700;color:#fff;line-height:1.5;margin:0}
.post-title a{color:#fff}
.post-title a:hover{color:var(--c-primary-2)}
.post-excerpt{color:var(--c-muted);font-size:14px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;font-size:13px;color:var(--c-primary-2);font-weight:600}
.empty{
  grid-column:1/-1;padding:60px;text-align:center;
  background:var(--c-panel);border:1px dashed var(--c-line);border-radius:var(--r);
  color:var(--c-muted);
}

/* REVIEWS */
.reviews{background:var(--c-bg-soft)}
.rev-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.rev-card{
  background:var(--c-panel);border:1px solid var(--c-line);
  padding:26px;border-radius:var(--r);position:relative;
}
.rev-card::before{
  content:"“";position:absolute;top:8px;right:20px;
  font-size:70px;color:rgba(255,46,126,.15);font-family:serif;line-height:1;
}
.rev-stars{color:var(--c-gold);margin-bottom:12px;letter-spacing:2px}
.rev-text{color:#e5d8ec;font-size:15px;margin-bottom:18px}
.rev-user{display:flex;align-items:center;gap:12px}
.rev-avatar{
  width:40px;height:40px;border-radius:50%;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  display:grid;place-items:center;font-weight:800;color:#fff;
}
.rev-name{font-size:14px;color:#fff;font-weight:600}
.rev-loc{font-size:12px;color:var(--c-muted)}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--c-panel);border:1px solid var(--c-line);
  border-radius:var(--r);margin-bottom:14px;overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item[open]{border-color:var(--c-primary)}
.faq-item summary{
  padding:20px 24px;cursor:pointer;font-weight:600;color:#fff;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  list-style:none;font-size:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";width:28px;height:28px;border-radius:50%;
  background:rgba(255,46,126,.15);color:var(--c-primary);
  display:grid;place-items:center;font-size:20px;flex-shrink:0;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-a{padding:0 24px 22px;color:var(--c-muted);font-size:15px;line-height:1.8}

/* CTA */
.cta-band{
  background:
    linear-gradient(120deg,rgba(15,10,20,.85),rgba(15,10,20,.6)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:80px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  text-align:center;
}
.cta-band h2{font-size:clamp(28px,4vw,42px);color:#fff;margin-bottom:16px}
.cta-band p{color:#e2d3ea;max-width:640px;margin:0 auto 28px;font-size:17px}

/* FOOTER */
.site-footer{background:#0a0710;padding:60px 0 30px;border-top:1px solid var(--c-line)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:40px}
.foot-brand p{color:var(--c-muted);font-size:14px;margin-top:14px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.foot-col a{display:block;padding:6px 0;color:var(--c-muted);font-size:14px}
.foot-col a:hover{color:var(--c-primary-2)}
.foot-bottom{
  border-top:1px solid var(--c-line);padding-top:24px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--c-muted);font-size:13px;
}
.foot-bottom a{color:var(--c-muted)}

/* RESPONSIVE */
@media (max-width:1024px){
  .split{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .nav-toggle{display:block}
  .nav-menu{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:var(--c-bg-soft);border-bottom:1px solid var(--c-line);
    padding:14px;flex-direction:column;gap:4px;
  }
  .nav-menu.open{display:flex}
  .nav-menu a{width:100%;text-align:left;border-radius:8px}
  .hero{padding:60px 0 70px}
  .section{padding:60px 0}
  .cta-band{padding:60px 0}
  .foot-bottom{flex-direction:column;text-align:center}
}
@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%;justify-content:center}
}

/* roulang page: category2 */
:root{
  --c-bg:#0f0a12;
  --c-bg-soft:#1a1220;
  --c-surface:#211628;
  --c-surface-2:#2b1c33;
  --c-border:rgba(255,255,255,.08);
  --c-border-strong:rgba(255,255,255,.16);
  --c-text:#f4ecf5;
  --c-text-soft:#c9b8cf;
  --c-muted:#8f7d97;
  --c-primary:#e8467c;
  --c-primary-dark:#c72a5f;
  --c-accent:#f3a34e;
  --c-gold:#e6c176;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-xl:32px;
  --shadow-sm:0 4px 14px rgba(0,0,0,.25);
  --shadow-md:0 12px 34px rgba(0,0,0,.35);
  --shadow-glow:0 10px 40px rgba(232,70,124,.28);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:36px;
  --sp-5:56px;
  --sp-6:80px;
  --ff:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:var(--ff);
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.02em;}
p{margin:0;}
.container{width:min(1200px,92%);margin:0 auto;}

/* header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(15,10,18,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-border);
}
.nav-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 0;gap:24px;
}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.04em;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#fff;font-size:13px;font-weight:800;letter-spacing:.05em;
  box-shadow:var(--shadow-glow);
}
.nav-menu{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.nav-menu a{
  padding:9px 15px;border-radius:999px;font-size:14.5px;color:var(--c-text-soft);
  transition:all .2s ease;font-weight:500;
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-menu a.active{color:#fff;background:rgba(232,70,124,.18);border:1px solid rgba(232,70,124,.4);}
.nav-menu a.nav-cta{
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;padding:10px 20px;font-weight:600;
  border:0;box-shadow:var(--shadow-glow);
}
.nav-menu a.nav-cta:hover{transform:translateY(-1px);color:#fff;}
.nav-toggle{
  display:none;font-size:22px;padding:6px 12px;border-radius:8px;
  background:rgba(255,255,255,.06);
}

/* hero */
.cat-hero{
  position:relative;
  padding:var(--sp-6) 0 var(--sp-5);
  background:
    linear-gradient(120deg,rgba(15,10,18,.92) 0%,rgba(15,10,18,.55) 55%,rgba(15,10,18,.9) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px circle at 15% 30%,rgba(232,70,124,.25),transparent 60%),
             radial-gradient(500px circle at 85% 70%,rgba(243,163,78,.18),transparent 60%);
  pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.breadcrumb{
  display:flex;gap:10px;align-items:center;font-size:13.5px;color:var(--c-muted);
  margin-bottom:var(--sp-3);
}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{opacity:.5;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(232,70,124,.14);border:1px solid rgba(232,70,124,.35);
  color:#f7b8ce;font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 12px var(--c-primary);}
.cat-hero h1{
  font-size:clamp(34px,4.6vw,58px);
  line-height:1.12;
  margin-bottom:20px;
  background:linear-gradient(120deg,#fff 20%,#f7b8ce 55%,#f3a34e 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-desc{color:var(--c-text-soft);font-size:17px;max-width:560px;margin-bottom:var(--sp-3);}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px;margin-bottom:var(--sp-3);
}
.meta-pill{
  padding:8px 14px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-border);
  font-size:13.5px;color:var(--c-text-soft);
}
.meta-pill b{color:var(--c-gold);font-weight:700;margin-right:4px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:12px;font-weight:600;font-size:15px;
  transition:all .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 14px 44px rgba(232,70,124,.4);}
.btn-ghost{
  background:rgba(255,255,255,.05);color:var(--c-text);
  border:1px solid var(--c-border-strong);
}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;}

.hero-panel{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  aspect-ratio:4/5;
  background:linear-gradient(135deg,#3a1e3f,#1a1220);
  border:1px solid var(--c-border);box-shadow:var(--shadow-md);
}
.hero-panel img{width:100%;height:100%;object-fit:cover;opacity:.85;}
.hero-panel::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(15,10,18,.85));
}
.hero-panel-info{
  position:absolute;left:24px;right:24px;bottom:24px;z-index:2;
}
.hero-panel-info .num{font-size:13px;color:var(--c-gold);letter-spacing:.14em;font-weight:600;}
.hero-panel-info .ttl{font-size:22px;margin:6px 0 10px;color:#fff;}
.hero-panel-info .desc{font-size:13.5px;color:var(--c-text-soft);}

/* stats bar */
.stats-bar{
  padding:var(--sp-4) 0;
  border-top:1px solid var(--c-border);
  border-bottom:1px solid var(--c-border);
  background:var(--c-bg-soft);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-item{text-align:center;}
.stat-num{
  font-size:38px;font-weight:800;
  background:linear-gradient(120deg,var(--c-primary),var(--c-accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:.02em;
}
.stat-label{color:var(--c-muted);font-size:14px;margin-top:4px;}

/* sections */
section{padding:var(--sp-6) 0;}
.section-head{text-align:center;max-width:720px;margin:0 auto var(--sp-4);}
.section-eyebrow{
  color:var(--c-primary);font-size:13px;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;
}
.section-head h2{
  font-size:clamp(28px,3.4vw,42px);margin:12px 0 14px;
}
.section-head p{color:var(--c-text-soft);font-size:16px;}

/* features */
.features{background:var(--c-bg);}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.feature-card{
  padding:32px 28px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,var(--c-surface) 0%,var(--c-bg-soft) 100%);
  border:1px solid var(--c-border);
  transition:all .3s ease;position:relative;overflow:hidden;
}
.feature-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .4s ease;
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--c-border-strong);box-shadow:var(--shadow-md);}
.feature-card:hover::before{transform:scaleX(1);}
.feature-icon{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:26px;margin-bottom:18px;
  background:rgba(232,70,124,.12);border:1px solid rgba(232,70,124,.28);
}
.feature-card h3{font-size:19px;margin-bottom:10px;}
.feature-card p{color:var(--c-text-soft);font-size:14.5px;line-height:1.75;}

/* scenes */
.scenes{background:var(--c-bg-soft);}
.scenes-grid{display:grid;grid-template-columns:2fr 1fr 1fr;grid-template-rows:220px 220px;gap:18px;}
.scene-card{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--c-border);
  cursor:pointer;transition:transform .3s ease;
}
.scene-card:hover{transform:scale(1.02);}
.scene-card:nth-child(1){grid-row:span 2;}
.scene-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.scene-card:hover img{transform:scale(1.06);}
.scene-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(15,10,18,.9));
}
.scene-info{position:absolute;left:20px;right:20px;bottom:18px;z-index:2;}
.scene-info .tag{
  display:inline-block;padding:3px 10px;border-radius:999px;
  background:rgba(232,70,124,.7);color:#fff;font-size:11.5px;font-weight:600;
  margin-bottom:8px;
}
.scene-info h3{font-size:18px;color:#fff;margin-bottom:4px;}
.scene-info span{font-size:12.5px;color:var(--c-text-soft);}

/* process */
.process{background:var(--c-bg);}
.process-list{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative;}
.process-step{
  padding:28px 24px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-border);
  position:relative;
}
.step-num{
  font-size:44px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--c-primary);
  margin-bottom:14px;letter-spacing:-.02em;
}
.process-step h4{font-size:17px;margin-bottom:8px;}
.process-step p{color:var(--c-text-soft);font-size:14px;}

/* actresses */
.actresses{background:var(--c-bg-soft);}
.actress-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.actress-card{
  border-radius:var(--r-md);overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-border);
  transition:all .3s ease;
}
.actress-card:hover{transform:translateY(-4px);border-color:rgba(232,70,124,.4);box-shadow:var(--shadow-md);}
.actress-cover{position:relative;aspect-ratio:3/4;overflow:hidden;}
.actress-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.actress-card:hover .actress-cover img{transform:scale(1.08);}
.actress-badge{
  position:absolute;top:12px;left:12px;
  padding:4px 10px;border-radius:6px;
  background:rgba(0,0,0,.6);backdrop-filter:blur(6px);
  color:var(--c-gold);font-size:11.5px;font-weight:600;
}
.actress-play{
  position:absolute;top:12px;right:12px;
  padding:4px 10px;border-radius:6px;
  background:rgba(232,70,124,.85);color:#fff;font-size:11.5px;font-weight:600;
}
.actress-info{padding:16px 18px;}
.actress-info h3{font-size:16px;margin-bottom:6px;}
.actress-info .attrs{color:var(--c-muted);font-size:12.5px;display:flex;gap:10px;flex-wrap:wrap;}
.actress-info .attrs span{position:relative;}
.actress-info .attrs span:not(:last-child)::after{content:"·";margin-left:10px;color:var(--c-border-strong);}

/* faq */
.faq{background:var(--c-bg);}
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-md);overflow:hidden;transition:all .25s ease;
}
.faq-item:hover{border-color:var(--c-border-strong);}
.faq-q{
  width:100%;padding:20px 24px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-size:16px;font-weight:600;text-align:left;
}
.faq-q .plus{
  width:28px;height:28px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;background:rgba(232,70,124,.15);color:var(--c-primary);
  font-size:18px;transition:transform .3s ease;
}
.faq-item.open .faq-q .plus{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .4s ease;
}
.faq-a-inner{padding:0 24px 20px;color:var(--c-text-soft);font-size:14.5px;line-height:1.85;}
.faq-item.open .faq-a{max-height:400px;}

/* cta */
.cta-block{
  padding:var(--sp-6) 0;
  background:
    linear-gradient(120deg,rgba(232,70,124,.35),rgba(15,10,18,.85)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  text-align:center;
}
.cta-block h2{font-size:clamp(28px,3.4vw,44px);margin-bottom:16px;}
.cta-block p{color:var(--c-text-soft);max-width:620px;margin:0 auto var(--sp-3);font-size:16.5px;}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* footer */
.site-footer{
  background:#0a070d;border-top:1px solid var(--c-border);
  padding:var(--sp-5) 0 var(--sp-3);color:var(--c-text-soft);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:var(--sp-4);}
.foot-brand .logo{margin-bottom:14px;}
.foot-brand p{font-size:14px;line-height:1.85;color:var(--c-muted);}
.foot-col h4{font-size:15px;margin-bottom:16px;color:#fff;}
.foot-col a{display:block;padding:5px 0;font-size:14px;color:var(--c-text-soft);}
.foot-col a:hover{color:var(--c-primary);padding-left:4px;}
.foot-bottom{
  padding-top:var(--sp-3);border-top:1px solid var(--c-border);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:var(--c-muted);
}

/* responsive */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-panel{aspect-ratio:16/10;}
  .features-grid,.actress-grid{grid-template-columns:repeat(2,1fr);}
  .process-list{grid-template-columns:repeat(2,1fr);}
  .scenes-grid{grid-template-columns:1fr 1fr;grid-template-rows:auto;}
  .scene-card:nth-child(1){grid-column:span 2;grid-row:auto;height:260px;}
  .scene-card{height:200px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .nav-toggle{display:inline-flex;}
  .nav-menu{
    display:none;position:absolute;top:72px;left:4%;right:4%;
    flex-direction:column;align-items:stretch;
    padding:14px;background:var(--c-bg-soft);
    border:1px solid var(--c-border);border-radius:var(--r-md);
    box-shadow:var(--shadow-md);
  }
  .nav-menu.open{display:flex;}
  .nav-menu a{padding:12px 16px;border-radius:8px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  section{padding:var(--sp-5) 0;}
  .cat-hero{padding:var(--sp-5) 0 var(--sp-4);}
}
@media (max-width:520px){
  .features-grid,.actress-grid{grid-template-columns:1fr;}
  .process-list{grid-template-columns:1fr;}
  .scenes-grid{grid-template-columns:1fr;}
  .scene-card:nth-child(1){grid-column:auto;}
  .foot-grid{grid-template-columns:1fr;}
  .stat-num{font-size:32px;}
  .hero-cta,.cta-actions{flex-direction:column;}
  .btn{width:100%;justify-content:center;}
}

/* roulang page: category4 */
:root{
  --c-bg:#0d0b14;
  --c-bg-2:#141020;
  --c-bg-3:#1b1628;
  --c-card:#1a1524;
  --c-line:#2a2338;
  --c-text:#ececf1;
  --c-text-2:#a9a4b8;
  --c-muted:#7a7590;
  --c-brand:#b892ff;
  --c-brand-2:#7bd3ff;
  --c-accent:#ff6ec7;
  --c-gold:#f4d06f;
  --grad:linear-gradient(135deg,#b892ff 0%,#7bd3ff 55%,#ff6ec7 100%);
  --grad-2:linear-gradient(120deg,#3a2e5a 0%,#1a1524 100%);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-xl:30px;
  --sh-1:0 6px 20px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(30,10,60,.45);
  --sp:clamp(64px,8vw,110px);
}
*,*::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(--c-bg);
  color:var(--c-text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .25s}
a:hover{color:var(--c-brand-2)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.25;font-weight:700;letter-spacing:.5px}
p{margin:0 0 1em}
.container{width:min(1200px,92%);margin:0 auto}

/* header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(13,11,20,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--c-text)}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  background:var(--grad);color:#0d0b14;font-weight:900;font-size:14px;
  box-shadow:0 6px 18px rgba(184,146,255,.35);
}
.nav-menu{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-menu a{
  padding:8px 14px;border-radius:999px;font-size:14px;color:var(--c-text-2);
  transition:all .25s;
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-menu a.active{color:#fff;background:rgba(184,146,255,.15);box-shadow:inset 0 0 0 1px rgba(184,146,255,.35)}
.nav-menu a.nav-cta{
  background:var(--grad);color:#12101a;font-weight:700;
  box-shadow:0 8px 24px rgba(184,146,255,.35);
}
.nav-menu a.nav-cta:hover{transform:translateY(-1px);color:#12101a}
.nav-toggle{display:none;font-size:22px;padding:6px 10px;border-radius:8px}

/* hero */
.hero{
  position:relative;
  padding:calc(var(--sp) + 30px) 0 var(--sp);
  background:
    linear-gradient(180deg,rgba(13,11,20,.55) 0%,rgba(13,11,20,.9) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:auto -20% -40% -20%;height:70%;
  background:radial-gradient(closest-side,rgba(184,146,255,.35),transparent 70%);
  filter:blur(30px);pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid rgba(184,146,255,.3);
  font-size:13px;color:#d8cff0;letter-spacing:1px;
}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 12px var(--c-accent)}
.hero h1{
  font-size:clamp(34px,4.4vw,58px);
  margin-top:22px;margin-bottom:20px;
  background:linear-gradient(120deg,#fff 0%,#d0c6ee 60%,#7bd3ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{color:var(--c-text-2);font-size:17px;max-width:560px}
.hero-stats{display:flex;gap:36px;margin-top:36px}
.hero-stats .stat{display:flex;flex-direction:column;gap:4px}
.hero-stats .num{font-size:30px;font-weight:800;color:#fff}
.hero-stats .lb{font-size:13px;color:var(--c-muted);letter-spacing:1px}
.hero-cta{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:12px;font-weight:600;font-size:15px;
  transition:transform .25s,box-shadow .25s,background .25s;
}
.btn-primary{background:var(--grad);color:#12101a;box-shadow:0 12px 30px rgba(184,146,255,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(184,146,255,.5);color:#12101a}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border:1px solid var(--c-line)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-visual{
  position:relative;
  border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
}
.hero-visual img{width:100%;height:520px;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,11,20,0) 40%,rgba(13,11,20,.85) 100%);
}
.hero-visual .caption{
  position:absolute;left:24px;right:24px;bottom:22px;z-index:2;
}
.hero-visual .caption .row{display:flex;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.chip{
  display:inline-flex;padding:5px 12px;border-radius:999px;font-size:12px;
  background:rgba(255,255,255,.12);color:#fff;backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.15);
}
.chip.gold{background:rgba(244,208,111,.18);color:var(--c-gold);border-color:rgba(244,208,111,.4)}
.hero-visual h3{font-size:22px;color:#fff;margin:0}

/* section base */
section{padding:var(--sp) 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.sec-head .left{max-width:640px}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:3px;text-transform:uppercase;
  color:var(--c-brand);margin-bottom:14px;font-weight:600;
}
.sec-head h2{font-size:clamp(28px,3vw,40px)}
.sec-head p{color:var(--c-text-2);margin-top:8px}
.sec-head .right a{color:var(--c-brand-2);font-size:14px}

/* traits grid */
.traits{background:var(--c-bg-2)}
.traits-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.trait-card{
  background:linear-gradient(180deg,var(--c-card) 0%,var(--c-bg-3) 100%);
  border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:30px 26px;position:relative;overflow:hidden;
  transition:transform .3s,border-color .3s;
}
.trait-card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .4s;
}
.trait-card:hover{transform:translateY(-6px);border-color:rgba(184,146,255,.4)}
.trait-card:hover::before{transform:scaleX(1)}
.trait-ic{
  width:52px;height:52px;border-radius:14px;
  background:rgba(184,146,255,.12);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;margin-bottom:20px;color:var(--c-brand);
}
.trait-card h3{font-size:19px;color:#fff}
.trait-card p{color:var(--c-text-2);font-size:14.5px;margin:0}

/* region grid */
.regions-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.region-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-line);background:var(--c-card);
  transition:transform .35s;
}
.region-card:hover{transform:translateY(-5px)}
.region-card .cover{position:relative;height:240px;overflow:hidden}
.region-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.region-card:hover .cover img{transform:scale(1.06)}
.region-card .cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(13,11,20,.9) 100%);
}
.region-card .flag{
  position:absolute;top:16px;left:16px;z-index:2;
  padding:6px 12px;border-radius:999px;font-size:12px;
  background:rgba(0,0,0,.55);color:#fff;backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.15);letter-spacing:1px;
}
.region-card .num-tag{
  position:absolute;top:16px;right:16px;z-index:2;
  padding:6px 12px;border-radius:999px;font-size:12px;font-weight:700;
  background:var(--grad);color:#12101a;
}
.region-card .body{padding:24px 24px 26px}
.region-card h3{font-size:20px;color:#fff}
.region-card p{color:var(--c-text-2);font-size:14px;margin-bottom:14px}
.region-card .meta{display:flex;gap:10px;flex-wrap:wrap;font-size:12px}
.region-card .meta span{
  padding:4px 10px;border-radius:6px;background:rgba(255,255,255,.05);
  color:var(--c-text-2);border:1px solid var(--c-line);
}

/* scene / usecases */
.scenes{background:var(--c-bg-2)}
.scenes-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:stretch}
.scene-list{display:flex;flex-direction:column;gap:16px}
.scene-item{
  display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;
  padding:22px 24px;border-radius:var(--r-md);
  background:var(--c-card);border:1px solid var(--c-line);
  transition:border-color .3s,background .3s;
}
.scene-item:hover{border-color:rgba(184,146,255,.4);background:var(--c-bg-3)}
.scene-item .no{
  width:64px;height:64px;border-radius:16px;
  background:var(--grad-2);border:1px solid rgba(184,146,255,.3);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:800;color:var(--c-brand);
}
.scene-item h4{font-size:17px;color:#fff;margin-bottom:4px}
.scene-item p{color:var(--c-text-2);font-size:14px;margin:0}
.scene-item .arrow{color:var(--c-brand);font-size:22px;opacity:.5;transition:opacity .3s}
.scene-item:hover .arrow{opacity:1}
.scene-poster{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-line);min-height:420px;
}
.scene-poster img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.scene-poster::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,11,20,.2),rgba(13,11,20,.95));
}
.scene-poster .info{position:absolute;left:26px;right:26px;bottom:26px;z-index:2}
.scene-poster h3{color:#fff;font-size:24px;margin-bottom:8px}
.scene-poster p{color:#d0c6ee;font-size:14px;margin-bottom:16px}

/* flow */
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.flow-steps::before{
  content:"";position:absolute;top:36px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,rgba(184,146,255,.6),rgba(123,211,255,.4),rgba(255,110,199,.6));
  z-index:0;
}
.step{
  position:relative;z-index:1;background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:28px 24px;text-align:center;
}
.step .n{
  width:56px;height:56px;border-radius:50%;margin:0 auto 20px;
  background:var(--c-bg);border:2px solid var(--c-brand);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;color:var(--c-brand);
}
.step h4{font-size:17px;color:#fff}
.step p{color:var(--c-text-2);font-size:13.5px;margin:0}

/* faq */
.faq{background:var(--c-bg-2)}
.faq-wrap{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;transition:border-color .3s;
}
.faq-item[open]{border-color:rgba(184,146,255,.45)}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:22px 26px;display:flex;justify-content:space-between;gap:16px;align-items:center;
  font-weight:600;font-size:16px;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:24px;color:var(--c-brand);
  transition:transform .3s;line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .a{padding:0 26px 22px;color:var(--c-text-2);font-size:15px}

/* cta */
.cta-band{
  padding:calc(var(--sp) - 20px) 0;
  background:
    linear-gradient(135deg,rgba(184,146,255,.15),rgba(255,110,199,.12)),
    var(--c-bg-2);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.cta-inner{
  display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-xl);padding:48px 52px;
  box-shadow:var(--sh-2);
}
.cta-inner h2{font-size:clamp(26px,2.6vw,36px);color:#fff;margin-bottom:12px}
.cta-inner p{color:var(--c-text-2);margin-bottom:24px}
.cta-inner .btns{display:flex;gap:14px;flex-wrap:wrap}
.cta-side{
  display:flex;flex-direction:column;gap:14px;
  padding-left:36px;border-left:1px dashed var(--c-line);
}
.cta-side .kv{display:flex;justify-content:space-between;gap:16px}
.cta-side .kv .k{color:var(--c-muted);font-size:13px}
.cta-side .kv .v{color:#fff;font-weight:600;font-size:15px}

/* footer */
.site-footer{background:#08070d;padding:70px 0 30px;border-top:1px solid var(--c-line)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.foot-brand p{color:var(--c-text-2);font-size:14px;margin-top:18px;max-width:340px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:1px}
.foot-col a{display:block;color:var(--c-text-2);font-size:14px;padding:5px 0}
.foot-col a:hover{color:var(--c-brand-2)}
.foot-bottom{
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:24px;border-top:1px solid var(--c-line);
  color:var(--c-muted);font-size:13px;
}

/* responsive */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero-visual img{height:420px}
  .traits-grid{grid-template-columns:repeat(2,1fr)}
  .regions-grid{grid-template-columns:repeat(2,1fr)}
  .scenes-grid{grid-template-columns:1fr}
  .scene-poster{min-height:320px}
  .flow-steps{grid-template-columns:repeat(2,1fr)}
  .flow-steps::before{display:none}
  .cta-inner{grid-template-columns:1fr;padding:36px 32px}
  .cta-side{border-left:0;border-top:1px dashed var(--c-line);padding-left:0;padding-top:24px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav-menu{
    position:absolute;top:70px;left:4%;right:4%;
    flex-direction:column;align-items:stretch;
    background:var(--c-bg-2);border:1px solid var(--c-line);
    border-radius:var(--r-md);padding:12px;gap:4px;
    display:none;box-shadow:var(--sh-2);
  }
  .nav-menu.open{display:flex}
  .nav-menu a{padding:12px 14px;border-radius:8px}
  .nav-toggle{display:inline-flex}
  .hero-stats{gap:24px}
  .hero-stats .num{font-size:24px}
}
@media(max-width:520px){
  .traits-grid{grid-template-columns:1fr}
  .regions-grid{grid-template-columns:1fr}
  .flow-steps{grid-template-columns:1fr}
  .scene-item{grid-template-columns:52px 1fr;gap:14px}
  .scene-item .arrow{display:none}
  .cta-inner{padding:28px 22px}
  .hero-visual img{height:340px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;text-align:left}
}

/* roulang page: category5 */
:root{
  --bg:#0b0d12;--bg-2:#12151d;--panel:#171a24;--panel-2:#1e2230;
  --text:#eef1f7;--muted:#9aa3b5;--line:rgba(255,255,255,.08);
  --brand:#ff2e63;--brand-2:#ffb703;--accent:#22d3ee;
  --radius:16px;--radius-sm:10px;--shadow:0 20px 50px rgba(0,0,0,.35);
  --shadow-hover:0 30px 60px rgba(255,46,99,.25);
  --gap:24px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:.25s}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
.container{max-width:1240px;margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,13,18,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.5px}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;font-size:14px;color:#fff;box-shadow:0 8px 20px rgba(255,46,99,.4)}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu a{padding:10px 14px;border-radius:10px;font-size:15px;color:var(--muted)}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-menu a.active{color:#fff;background:rgba(255,46,99,.15)}
.nav-menu .nav-cta{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff !important;font-weight:700;padding:10px 18px;box-shadow:0 8px 22px rgba(255,46,99,.35)}
.nav-menu .nav-cta:hover{transform:translateY(-1px)}
.nav-toggle{display:none;font-size:24px;color:#fff}

/* ===== Hero ===== */
.hero{position:relative;padding:90px 0 80px;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-3.webp") center/cover no-repeat;filter:brightness(.4) saturate(1.1);z-index:-2}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(1000px 500px at 80% 20%,rgba(255,46,99,.35),transparent 60%),linear-gradient(180deg,rgba(11,13,18,.6),rgba(11,13,18,.95));z-index:-1}
.hero-inner{max-width:900px}
.crumb{display:flex;gap:8px;font-size:14px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.crumb a:hover{color:var(--brand-2)}
.crumb span{color:var(--brand-2)}
.hero-tag{display:inline-flex;align-items:center;gap:10px;padding:8px 16px;background:rgba(255,46,99,.15);border:1px solid rgba(255,46,99,.4);border-radius:99px;font-size:13px;color:#ffb4c4;margin-bottom:22px}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 12px var(--brand)}
.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.15;font-weight:800;letter-spacing:.5px;margin-bottom:22px}
.hero h1 em{font-style:normal;background:linear-gradient(135deg,var(--brand-2),var(--brand));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:18px;color:#cdd3e0;max-width:760px;margin-bottom:34px}
.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:12px;font-weight:700;font-size:15px;transition:.25s}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 10px 28px rgba(255,46,99,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,46,99,.45)}
.btn-ghost{border:1px solid rgba(255,255,255,.2);color:#fff}
.btn-ghost:hover{border-color:var(--brand-2);color:var(--brand-2)}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;max-width:780px}
.hero-stats .stat{padding:18px 20px;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius-sm);backdrop-filter:blur(8px)}
.hero-stats .num{font-size:26px;font-weight:800;color:var(--brand-2)}
.hero-stats .label{font-size:13px;color:var(--muted);margin-top:4px}

/* ===== Section base ===== */
section{padding:80px 0}
.sec-head{max-width:760px;margin:0 auto 50px;text-align:center}
.sec-tag{display:inline-block;padding:6px 14px;background:rgba(34,211,238,.12);color:var(--accent);border-radius:99px;font-size:12px;font-weight:700;letter-spacing:1px;margin-bottom:14px}
.sec-head h2{font-size:clamp(26px,3.2vw,38px);font-weight:800;line-height:1.25;margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:16px}

/* ===== Resolution grid ===== */
.res-section{background:linear-gradient(180deg,var(--bg),var(--bg-2))}
.res-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.res-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;position:relative;overflow:hidden;transition:.3s}
.res-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.res-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(255,46,99,.3)}
.res-card .badge{display:inline-block;padding:4px 10px;background:rgba(255,179,3,.14);color:var(--brand-2);border-radius:6px;font-size:11px;font-weight:700;letter-spacing:1px;margin-bottom:14px}
.res-card h3{font-size:22px;margin-bottom:10px}
.res-card p{color:var(--muted);font-size:14px;margin-bottom:16px}
.res-card ul{list-style:none;font-size:13px;color:#c8cddc}
.res-card ul li{padding:6px 0;border-top:1px dashed var(--line);display:flex;justify-content:space-between}
.res-card ul li:first-child{border-top:0}
.res-card ul li b{color:#fff;font-weight:600}

/* ===== Feature strip ===== */
.strip{background:var(--bg-2)}
.strip-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center}
.strip-visual{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.strip-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.strip-visual::after{content:"4K UHD";position:absolute;top:20px;left:20px;padding:8px 14px;background:rgba(0,0,0,.65);color:var(--brand-2);border:1px solid var(--brand-2);border-radius:8px;font-weight:800;letter-spacing:2px;font-size:13px}
.strip h2{font-size:clamp(24px,3vw,34px);margin-bottom:18px;line-height:1.3}
.strip .lead{color:var(--muted);margin-bottom:26px}
.strip-list{display:grid;gap:16px}
.strip-list .item{display:flex;gap:14px;padding:16px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);transition:.25s}
.strip-list .item:hover{border-color:var(--brand);transform:translateX(4px)}
.strip-list .item .idx{flex:0 0 40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;font-weight:800;color:#fff}
.strip-list .item h4{font-size:16px;margin-bottom:4px}
.strip-list .item p{font-size:13px;color:var(--muted);line-height:1.6}

/* ===== Featured film cards ===== */
.films-section{padding-top:100px}
.films-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.film-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;position:relative}
.film-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}
.film-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.film-cover img{width:100%;height:100%;object-fit:cover;transition:.5s}
.film-card:hover .film-cover img{transform:scale(1.08)}
.film-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(11,13,18,.85))}
.film-quality{position:absolute;top:14px;left:14px;padding:5px 10px;background:rgba(255,46,99,.9);color:#fff;font-size:11px;font-weight:800;letter-spacing:1px;border-radius:6px;z-index:2}
.film-time{position:absolute;bottom:14px;right:14px;padding:4px 10px;background:rgba(0,0,0,.6);color:#fff;font-size:12px;border-radius:6px;z-index:2}
.film-body{padding:20px 22px}
.film-body h3{font-size:17px;margin-bottom:8px;line-height:1.4}
.film-meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.film-meta span{padding:3px 8px;background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:5px;font-size:11px;color:var(--muted)}
.film-body p{color:var(--muted);font-size:13px;margin-bottom:14px}
.film-foot{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);padding-top:14px;border-top:1px solid var(--line)}
.film-foot b{color:var(--brand-2);font-weight:700}

/* ===== Workflow ===== */
.flow{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.flow-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative}
.flow-step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;text-align:center;transition:.3s}
.flow-step:hover{border-color:var(--brand-2);transform:translateY(-4px)}
.flow-step .n{width:48px;height:48px;margin:0 auto 14px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;font-weight:800;color:#fff;font-size:18px}
.flow-step h4{font-size:16px;margin-bottom:8px}
.flow-step p{font-size:13px;color:var(--muted);line-height:1.6}

/* ===== Compare table ===== */
.compare{background:var(--bg-2)}
.compare-box{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.compare-row{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;padding:18px 24px;align-items:center;border-bottom:1px solid var(--line);font-size:14px}
.compare-row:last-child{border-bottom:0}
.compare-row.head{background:rgba(255,46,99,.08);font-weight:700;color:#fff;font-size:13px;letter-spacing:1px}
.compare-row .col{color:var(--muted)}
.compare-row .col.yes{color:#7ee787}
.compare-row .col.no{color:#f2647a}
.compare-row .col.mid{color:var(--brand-2)}
.compare-row .label{color:#fff;font-weight:600}

/* ===== FAQ ===== */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:14px;overflow:hidden;transition:.25s}
.faq-item[open]{border-color:var(--brand);box-shadow:0 8px 24px rgba(255,46,99,.15)}
.faq-item summary{padding:20px 26px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";width:28px;height:28px;border-radius:50%;background:rgba(255,46,99,.15);color:var(--brand-2);display:grid;place-items:center;font-size:20px;flex-shrink:0;transition:.25s}
.faq-item[open] summary::after{content:"−";background:var(--brand);color:#fff;transform:rotate(180deg)}
.faq-item .a{padding:0 26px 22px;color:var(--muted);font-size:14.5px;line-height:1.75}

/* ===== CTA ===== */
.cta{padding:70px 0}
.cta-box{background:linear-gradient(135deg,#2a0f1a,#3a1424 60%,#1c0a12);border:1px solid rgba(255,46,99,.3);border-radius:24px;padding:60px 50px;text-align:center;position:relative;overflow:hidden}
.cta-box::before{content:"";position:absolute;top:-50%;right:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(255,46,99,.3),transparent 70%);border-radius:50%}
.cta-box h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px;position:relative}
.cta-box p{color:#cdd3e0;max-width:600px;margin:0 auto 28px;position:relative}
.cta-box .btn{position:relative}

/* ===== Footer ===== */
.site-footer{background:#07090d;padding:70px 0 30px;border-top:1px solid var(--line);margin-top:60px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:14px;line-height:1.75}
.foot-col h4{font-size:15px;margin-bottom:16px;color:#fff}
.foot-col a{display:block;color:var(--muted);font-size:14px;padding:5px 0;transition:.2s}
.foot-col a:hover{color:var(--brand-2);transform:translateX(3px)}
.foot-bottom{padding-top:26px;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:13px}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .res-grid{grid-template-columns:repeat(2,1fr)}
  .films-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .strip-grid{grid-template-columns:1fr;gap:40px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .nav-menu{position:fixed;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;padding:16px;background:rgba(11,13,18,.98);border-bottom:1px solid var(--line);transform:translateY(-120%);transition:.3s}
  .nav-menu.open{transform:translateY(0)}
  .nav-menu a{padding:12px 14px}
  .nav-toggle{display:block}
  section{padding:60px 0}
  .hero{padding:60px 0 50px}
  .compare-row{grid-template-columns:1.2fr 1fr 1fr 1fr;padding:14px 16px;font-size:13px}
  .cta-box{padding:44px 24px}
}
@media (max-width:520px){
  .res-grid,.films-grid,.flow-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
  .compare-row{grid-template-columns:1fr 1fr;font-size:12px}
  .compare-row .col:nth-child(4){display:none}
  .container{padding:0 18px}
}

/* roulang page: article */
:root{
  --c-bg:#0e0a12;
  --c-bg-2:#160f1d;
  --c-surface:#1c1425;
  --c-surface-2:#241a30;
  --c-border:#2f2340;
  --c-text:#f4eef8;
  --c-text-dim:#b8a8c6;
  --c-muted:#8a7a9c;
  --c-primary:#ff2e7e;
  --c-primary-2:#ff6ea8;
  --c-accent:#8a4dff;
  --c-gold:#ffcf70;
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 4px 12px rgba(0,0,0,.35);
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --shadow-glow:0 0 40px rgba(255,46,126,.25);
  --space-1:6px;
  --space-2:12px;
  --space-3:20px;
  --space-4:32px;
  --space-5:48px;
  --space-6:72px;
  --ff:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --tr:.25s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--ff);background:var(--c-bg);color:var(--c-text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary-2);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{font-weight:700;line-height:1.3;margin:0 0 var(--space-2)}
p{margin:0 0 var(--space-2)}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(14,10,18,.85);backdrop-filter:blur(16px);border-bottom:1px solid var(--c-border)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--c-text)}
.logo-mark{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));color:#fff;font-size:14px;letter-spacing:.5px;box-shadow:var(--shadow-glow)}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu a{padding:9px 14px;border-radius:999px;color:var(--c-text-dim);font-size:14.5px;font-weight:500;transition:all var(--tr)}
.nav-menu a:hover{color:var(--c-text);background:rgba(255,255,255,.05)}
.nav-menu a.active{color:#fff;background:rgba(255,46,126,.14)}
.nav-menu a.nav-cta{background:linear-gradient(135deg,var(--c-primary),var(--c-accent));color:#fff;font-weight:600;padding:10px 20px;box-shadow:0 6px 18px rgba(255,46,126,.35)}
.nav-menu a.nav-cta:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,46,126,.5)}
.nav-toggle{display:none;font-size:22px;color:var(--c-text);padding:6px 10px;border-radius:8px}

/* Article banner */
.article-banner{position:relative;padding:70px 0 60px;background:linear-gradient(135deg,rgba(20,10,30,.85),rgba(40,15,50,.75)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;border-bottom:1px solid var(--c-border);overflow:hidden}
.article-banner::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 20% 30%,rgba(255,46,126,.28),transparent 60%),radial-gradient(500px 260px at 80% 70%,rgba(138,77,255,.28),transparent 60%);pointer-events:none}
.crumbs{position:relative;display:flex;gap:8px;color:var(--c-muted);font-size:13.5px;margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:var(--c-text-dim)}
.crumbs a:hover{color:var(--c-primary-2)}
.crumbs span{color:var(--c-muted)}
.article-meta-top{position:relative;display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.tag-cat{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));color:#fff;font-size:13px;font-weight:600;letter-spacing:.3px}
.tag-hd{display:inline-flex;align-items:center;gap:5px;padding:5px 11px;border-radius:6px;background:rgba(255,207,112,.14);color:var(--c-gold);font-size:12px;font-weight:700;border:1px solid rgba(255,207,112,.35)}
.article-title{position:relative;font-size:38px;letter-spacing:-.5px;color:#fff;max-width:900px;margin-bottom:18px}
.article-meta-bottom{position:relative;display:flex;gap:22px;color:var(--c-text-dim);font-size:14px;flex-wrap:wrap}
.article-meta-bottom span{display:inline-flex;align-items:center;gap:6px}
.article-meta-bottom i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);display:inline-block}

/* Main layout */
.article-layout{padding:56px 0 72px;display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px}

/* Article body */
.article-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg);padding:44px 48px;box-shadow:var(--shadow)}
.article-hero-img{border-radius:var(--radius);overflow:hidden;margin-bottom:30px;position:relative}
.article-hero-img img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-content{color:var(--c-text);font-size:16.5px;line-height:1.9}
.article-content p{margin:0 0 18px;color:#e8dff0}
.article-content h2{font-size:26px;margin:36px 0 16px;padding-left:14px;border-left:4px solid var(--c-primary);color:#fff}
.article-content h3{font-size:20px;margin:28px 0 12px;color:#fff}
.article-content ul,.article-content ol{padding-left:22px;margin:0 0 18px;color:#e8dff0}
.article-content li{margin-bottom:8px}
.article-content a{color:var(--c-primary-2);border-bottom:1px dashed rgba(255,110,168,.5)}
.article-content a:hover{color:var(--c-primary);border-bottom-color:var(--c-primary)}
.article-content blockquote{margin:22px 0;padding:18px 22px;background:rgba(138,77,255,.08);border-left:3px solid var(--c-accent);border-radius:var(--radius-sm);color:var(--c-text-dim);font-style:italic}
.article-content img{border-radius:var(--radius-sm);margin:20px 0}
.article-content strong{color:#fff}

/* Not found */
.notfound{padding:80px 30px;text-align:center;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-lg)}
.notfound h2{font-size:26px;color:#fff;margin-bottom:12px}
.notfound p{color:var(--c-text-dim);margin-bottom:24px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;transition:all var(--tr);cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--c-primary),var(--c-accent));color:#fff;box-shadow:0 8px 22px rgba(255,46,126,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,46,126,.5);color:#fff}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--c-text);border:1px solid var(--c-border)}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}

/* Article footer actions */
.article-actions{margin-top:36px;padding-top:26px;border-top:1px solid var(--c-border);display:flex;gap:14px;flex-wrap:wrap;justify-content:space-between;align-items:center}
.action-tags{display:flex;gap:8px;flex-wrap:wrap}
.action-tags span{padding:6px 12px;border-radius:6px;background:rgba(255,255,255,.05);border:1px solid var(--c-border);color:var(--c-text-dim);font-size:12.5px}
.action-btns{display:flex;gap:10px}

/* Sidebar */
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:92px;align-self:start}
.side-box{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:22px 22px}
.side-title{font-size:16px;color:#fff;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--c-border);display:flex;align-items:center;gap:10px}
.side-title::before{content:"";width:4px;height:16px;background:linear-gradient(180deg,var(--c-primary),var(--c-accent));border-radius:2px}

.side-latest{display:flex;flex-direction:column;gap:14px}
.side-latest a{display:flex;gap:12px;align-items:flex-start;padding:8px;border-radius:var(--radius-sm);transition:background var(--tr)}
.side-latest a:hover{background:rgba(255,255,255,.04)}
.side-latest .idx{flex-shrink:0;width:26px;height:26px;border-radius:6px;background:rgba(255,46,126,.14);color:var(--c-primary-2);display:grid;place-items:center;font-size:12px;font-weight:700}
.side-latest a:nth-child(1) .idx,.side-latest a:nth-child(2) .idx,.side-latest a:nth-child(3) .idx{background:linear-gradient(135deg,var(--c-primary),var(--c-accent));color:#fff}
.side-latest .txt{color:var(--c-text-dim);font-size:14px;line-height:1.5;flex:1}
.side-latest a:hover .txt{color:#fff}

.side-cats{display:flex;flex-wrap:wrap;gap:8px}
.side-cats a{padding:7px 13px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--c-border);color:var(--c-text-dim);font-size:13px;transition:all var(--tr)}
.side-cats a:hover{background:rgba(255,46,126,.15);border-color:var(--c-primary);color:#fff}

.side-cover{border-radius:var(--radius);overflow:hidden;position:relative;display:block}
.side-cover img{width:100%;aspect-ratio:4/5;object-fit:cover;transition:transform .5s ease}
.side-cover:hover img{transform:scale(1.05)}
.side-cover .cap{position:absolute;left:0;right:0;bottom:0;padding:16px 16px 14px;background:linear-gradient(180deg,transparent,rgba(0,0,0,.85));color:#fff;font-size:14.5px;font-weight:600}
.side-cover .cap small{display:block;color:var(--c-primary-2);font-size:12px;font-weight:500;margin-top:3px}

/* Related */
.related{margin-top:56px}
.related-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:22px;flex-wrap:wrap;gap:12px}
.related-head h2{font-size:24px;color:#fff}
.related-head .lead{color:var(--c-muted);font-size:14px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.r-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);overflow:hidden;transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);display:flex;flex-direction:column}
.r-card:hover{transform:translateY(-4px);border-color:rgba(255,46,126,.4);box-shadow:var(--shadow)}
.r-card .r-img{position:relative;overflow:hidden}
.r-card .r-img img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.r-card:hover .r-img img{transform:scale(1.06)}
.r-card .r-img .play{position:absolute;inset:0;display:grid;place-items:center;opacity:0;transition:opacity var(--tr);background:rgba(0,0,0,.4)}
.r-card:hover .r-img .play{opacity:1}
.r-card .r-img .play span{width:52px;height:52px;border-radius:50%;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:18px;box-shadow:0 8px 20px rgba(255,46,126,.5)}
.r-card .r-img .badge{position:absolute;top:10px;left:10px;padding:4px 10px;border-radius:6px;background:rgba(0,0,0,.7);color:var(--c-gold);font-size:11px;font-weight:700;letter-spacing:.5px}
.r-card .r-body{padding:16px 18px 20px}
.r-card h3{font-size:15.5px;color:#fff;margin-bottom:6px;line-height:1.5}
.r-card .r-meta{color:var(--c-muted);font-size:12.5px;display:flex;gap:12px}

/* Footer */
.site-footer{background:var(--c-bg-2);border-top:1px solid var(--c-border);padding:60px 0 28px;margin-top:80px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px;margin-bottom:44px}
.foot-brand p{color:var(--c-text-dim);font-size:14px;line-height:1.8;margin-top:16px}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:16px;position:relative;padding-bottom:10px}
.foot-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent));border-radius:2px}
.foot-col a{display:block;color:var(--c-text-dim);font-size:14px;padding:5px 0;transition:color var(--tr)}
.foot-col a:hover{color:var(--c-primary-2);padding-left:5px}
.foot-bottom{padding-top:24px;border-top:1px solid var(--c-border);display:flex;justify-content:space-between;color:var(--c-muted);font-size:13px;flex-wrap:wrap;gap:12px}

/* Responsive */
@media(max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:36px}
  .sidebar{position:static}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:768px){
  .nav-toggle{display:block}
  .nav-menu{display:none;position:absolute;top:72px;left:0;right:0;background:var(--c-bg-2);flex-direction:column;padding:16px 20px;border-bottom:1px solid var(--c-border);gap:4px}
  .nav-menu.open{display:flex}
  .nav-menu a{width:100%;padding:12px 14px}
  .article-title{font-size:28px}
  .article-banner{padding:50px 0 44px}
  .article-card{padding:28px 22px}
  .article-content{font-size:15.5px}
  .article-content h2{font-size:22px}
}
@media(max-width:520px){
  .article-title{font-size:24px}
  .related-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .article-meta-bottom{gap:14px;flex-direction:column}
  .r-card .r-body{padding:14px 16px 18px}
  .foot-bottom{flex-direction:column;text-align:center}
}

/* roulang page: category1 */
:root{
  --brand:#e94b7b;
  --brand-2:#8b3dff;
  --accent:#ffb84d;
  --bg:#0e0b16;
  --bg-2:#171227;
  --surface:#1e1830;
  --surface-2:#28203f;
  --text:#f4f0ff;
  --muted:#a49ec2;
  --border:rgba(255,255,255,.08);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 20px 50px rgba(0,0,0,.35);
  --shadow-hover:0 25px 60px rgba(233,75,123,.25);
  --gap:24px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none;transition:color .25s ease}
a:hover{color:var(--brand)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
.container{max-width:1240px;margin:0 auto;padding:0 24px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(14,11,22,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.5px}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:900;font-size:14px;box-shadow:0 8px 20px rgba(233,75,123,.4)}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu a{padding:9px 14px;border-radius:10px;font-size:15px;color:var(--muted);font-weight:500;transition:all .25s ease}
.nav-menu a:hover{color:var(--text);background:var(--surface)}
.nav-menu a.active{color:var(--text);background:var(--surface-2)}
.nav-menu a.nav-cta{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:700;padding:10px 20px;box-shadow:0 8px 22px rgba(233,75,123,.35)}
.nav-menu a.nav-cta:hover{transform:translateY(-1px);color:#fff}
.nav-toggle{display:none;font-size:24px;padding:8px 12px;border-radius:10px;background:var(--surface)}

/* hero */
.cat-hero{position:relative;padding:80px 0 90px;overflow:hidden;background:
  linear-gradient(135deg,rgba(14,11,22,.85) 0%,rgba(23,18,39,.75) 60%,rgba(139,61,255,.35) 100%),
  url('/assets/images/backpic/back-2.webp') center/cover no-repeat}
.cat-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 30%,rgba(233,75,123,.35),transparent 55%);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}
.crumb{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);background:rgba(255,255,255,.06);padding:8px 16px;border-radius:999px;margin-bottom:22px;border:1px solid var(--border)}
.crumb span{color:var(--brand);font-weight:600}
h1{font-size:52px;line-height:1.15;font-weight:800;letter-spacing:-.5px;margin-bottom:20px}
h1 em{font-style:normal;background:linear-gradient(120deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;color:var(--muted);max-width:560px;margin-bottom:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.meta-pill{padding:8px 16px;background:var(--surface);border:1px solid var(--border);border-radius:999px;font-size:14px;color:var(--text)}
.meta-pill strong{color:var(--brand);margin-right:6px}
.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;transition:all .25s ease;border:1px solid transparent}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 12px 28px rgba(233,75,123,.4)}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 16px 34px rgba(233,75,123,.5)}
.btn-ghost{background:rgba(255,255,255,.06);border-color:var(--border);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:var(--text)}
.hero-visual{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border)}
.hero-visual img{border-radius:24px;height:460px;object-fit:cover;width:100%}
.hero-tag{position:absolute;top:20px;left:20px;background:rgba(14,11,22,.75);backdrop-filter:blur(8px);padding:8px 14px;border-radius:10px;font-size:13px;color:#fff;border:1px solid var(--border)}
.hero-badge{position:absolute;bottom:22px;left:22px;right:22px;background:linear-gradient(135deg,rgba(14,11,22,.9),rgba(30,24,48,.85));backdrop-filter:blur(10px);padding:18px 20px;border-radius:14px;display:flex;justify-content:space-between;align-items:center;border:1px solid var(--border)}
.hero-badge .b-title{font-weight:700;font-size:15px}
.hero-badge .b-sub{font-size:12px;color:var(--muted);margin-top:3px}
.hero-badge .b-num{font-size:26px;font-weight:800;background:linear-gradient(120deg,var(--brand),var(--accent));-webkit-background-clip:text;color:transparent}

/* sections common */
section{padding:80px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 50px}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--brand);text-transform:uppercase;margin-bottom:14px}
h2{font-size:38px;line-height:1.25;font-weight:800;margin-bottom:16px}
.section-lead{font-size:16px;color:var(--muted)}

/* highlights */
.hl-section{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}
.hl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.hl-card{padding:32px 26px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);transition:all .3s ease;position:relative;overflow:hidden}
.hl-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,var(--brand),var(--brand-2));transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.hl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(233,75,123,.3)}
.hl-card:hover::before{transform:scaleX(1)}
.hl-ico{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,rgba(233,75,123,.2),rgba(139,61,255,.2));display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:20px;border:1px solid rgba(233,75,123,.25)}
.hl-card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.hl-card p{color:var(--muted);font-size:14.5px}

/* film library */
.films-section{background:var(--bg)}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:40px}
.filter-bar button{padding:10px 22px;background:var(--surface);border:1px solid var(--border);border-radius:999px;font-size:14px;color:var(--muted);font-weight:500;transition:all .25s ease}
.filter-bar button:hover{color:var(--text);border-color:rgba(233,75,123,.4)}
.filter-bar button.on{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;border-color:transparent}
.film-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.film-card{background:var(--surface);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:all .35s ease}
.film-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:rgba(233,75,123,.3)}
.film-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.film-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.film-card:hover .film-cover img{transform:scale(1.06)}
.film-quality{position:absolute;top:12px;left:12px;background:rgba(0,0,0,.7);backdrop-filter:blur(6px);padding:5px 10px;border-radius:6px;font-size:11px;font-weight:700;color:var(--accent)}
.film-time{position:absolute;bottom:12px;right:12px;background:rgba(0,0,0,.7);backdrop-filter:blur(6px);padding:5px 10px;border-radius:6px;font-size:12px;color:#fff}
.film-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(14,11,22,.35);opacity:0;transition:opacity .3s ease}
.film-card:hover .film-play{opacity:1}
.film-play span{width:60px;height:60px;border-radius:50%;background:var(--brand);display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;box-shadow:0 12px 28px rgba(0,0,0,.4)}
.film-body{padding:20px 22px}
.film-body h3{font-size:16.5px;font-weight:700;line-height:1.4;margin-bottom:10px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.film-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.film-tags span{font-size:12px;padding:3px 10px;background:rgba(233,75,123,.12);color:var(--brand);border-radius:6px;font-weight:500}
.film-meta{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted);padding-top:12px;border-top:1px solid var(--border)}

/* scenes */
.scenes-section{background:linear-gradient(180deg,var(--bg-2) 0%,var(--bg) 100%)}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{padding:36px 30px;border-radius:var(--radius);background:linear-gradient(160deg,var(--surface),var(--surface-2));border:1px solid var(--border);position:relative;overflow:hidden}
.scene-card::after{content:attr(data-n);position:absolute;top:20px;right:24px;font-size:60px;font-weight:900;color:rgba(255,255,255,.04);letter-spacing:-3px}
.scene-icon{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:20px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 10px 24px rgba(233,75,123,.3)}
.scene-card h3{font-size:20px;font-weight:700;margin-bottom:12px}
.scene-card p{color:var(--muted);font-size:14.5px;margin-bottom:16px}
.scene-card ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.scene-card li{font-size:13.5px;color:var(--text);padding-left:22px;position:relative}
.scene-card li::before{content:"◆";position:absolute;left:0;color:var(--brand);font-size:11px;top:3px}

/* how */
.how-section{background:var(--bg)}
.how-wrap{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.how-visual{border-radius:22px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border)}
.how-visual img{height:520px;width:100%;object-fit:cover;border-radius:22px}
.how-steps{display:flex;flex-direction:column;gap:22px}
.how-step{display:flex;gap:20px;padding:24px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);transition:all .25s ease}
.how-step:hover{border-color:rgba(233,75,123,.35);transform:translateX(4px)}
.step-num{flex-shrink:0;width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:19px;box-shadow:0 8px 20px rgba(233,75,123,.3)}
.step-body h4{font-size:17px;font-weight:700;margin-bottom:8px}
.step-body p{color:var(--muted);font-size:14.5px}

/* stats */
.stats-section{padding:70px 0;background:linear-gradient(135deg,rgba(233,75,123,.12),rgba(139,61,255,.12));border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stat-item{text-align:center}
.stat-num{font-size:44px;font-weight:900;background:linear-gradient(120deg,var(--brand),var(--accent));-webkit-background-clip:text;color:transparent;line-height:1;margin-bottom:8px}
.stat-label{font-size:14px;color:var(--muted)}

/* faq */
.faq-section{background:var(--bg-2)}
.faq-wrap{max-width:820px;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;transition:all .25s ease}
.faq-item:hover{border-color:rgba(233,75,123,.3)}
.faq-item summary{list-style:none;padding:22px 26px;font-weight:700;font-size:16px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:24px;color:var(--brand);transition:transform .3s ease;flex-shrink:0}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 26px 24px;color:var(--muted);font-size:14.5px}

/* cta */
.cta-section{padding:90px 0;background:
  linear-gradient(135deg,rgba(14,11,22,.9),rgba(23,18,39,.85)),
  url('/assets/images/backpic/back-3.webp') center/cover no-repeat;text-align:center;position:relative}
.cta-section::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at center,rgba(233,75,123,.25),transparent 60%)}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto}
.cta-inner h2{margin-bottom:18px}
.cta-inner p{color:var(--muted);font-size:17px;margin-bottom:32px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* footer */
.site-footer{background:#080610;padding:70px 0 30px;border-top:1px solid var(--border)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:340px}
.foot-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text)}
.foot-col a{display:block;color:var(--muted);font-size:14px;padding:6px 0;transition:all .2s ease}
.foot-col a:hover{color:var(--brand);transform:translateX(3px)}
.foot-bottom{padding-top:26px;border-top:1px solid var(--border);display:flex;justify-content:space-between;color:var(--muted);font-size:13px;flex-wrap:wrap;gap:12px}

/* responsive */
@media(max-width:1024px){
  h1{font-size:42px}
  h2{font-size:32px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-visual img{height:360px}
  .hl-grid{grid-template-columns:repeat(2,1fr)}
  .film-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .how-wrap{grid-template-columns:1fr;gap:40px}
  .how-visual img{height:380px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
  section{padding:60px 0}
  .cat-hero{padding:56px 0 60px}
  h1{font-size:34px}
  h2{font-size:26px}
  .nav-menu{position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--bg-2);border-bottom:1px solid var(--border);padding:14px;gap:4px;display:none}
  .nav-menu.open{display:flex}
  .nav-menu a{padding:12px 16px}
  .nav-toggle{display:inline-flex}
  .stats-num{font-size:34px}
}
@media(max-width:520px){
  .container{padding:0 18px}
  h1{font-size:28px}
  h2{font-size:23px}
  .hero-visual img{height:280px}
  .hl-grid{grid-template-columns:1fr}
  .film-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:24px}
  .stat-num{font-size:32px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;text-align:center}
  .btn{padding:12px 22px;font-size:14px}
}

/* roulang page: category3 */
:root{
  --c-bg:#0f0710;
  --c-bg-2:#180a1c;
  --c-surface:#1e0f24;
  --c-surface-2:#2a1533;
  --c-primary:#ff3d7f;
  --c-primary-2:#ff8a3d;
  --c-accent:#ffd166;
  --c-text:#f6ecf0;
  --c-muted:#c8b3c3;
  --c-border:rgba(255,255,255,.09);
  --c-border-strong:rgba(255,255,255,.16);
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 4px 14px rgba(0,0,0,.28);
  --shadow:0 12px 34px rgba(0,0,0,.4);
  --shadow-lg:0 24px 60px rgba(255,61,127,.22);
  --grad-hot:linear-gradient(135deg,#ff3d7f 0%,#ff8a3d 55%,#ffd166 100%);
  --grad-warm:linear-gradient(135deg,#ff3d7f 0%,#c1358a 100%);
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  color:var(--c-text);
  background:var(--c-bg);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.25;font-weight:700;letter-spacing:.5px}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
.container{width:min(1200px,92%);margin:0 auto}

/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(15,7,16,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-border);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#fff}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-hot);color:#0f0710;font-weight:900;font-size:14px;
  box-shadow:0 6px 18px rgba(255,61,127,.4);
}
.nav-menu{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-menu a{
  padding:8px 14px;border-radius:999px;font-size:14.5px;color:var(--c-muted);
  transition:all .2s ease;
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-menu a.active{color:#fff;background:rgba(255,61,127,.18);border:1px solid rgba(255,61,127,.4)}
.nav-menu a.nav-cta{
  background:var(--grad-hot);color:#0f0710;font-weight:700;
  padding:9px 18px;box-shadow:0 8px 20px rgba(255,61,127,.35);
}
.nav-menu a.nav-cta:hover{transform:translateY(-1px);color:#0f0710}
.nav-toggle{display:none;font-size:22px;color:#fff}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:80px 0 90px;
  background:
    linear-gradient(180deg,rgba(15,7,16,.55) 0%,rgba(15,7,16,.9) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:auto -10% -40% -10%;height:60%;
  background:radial-gradient(60% 60% at 50% 0%,rgba(255,61,127,.35),transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.pill{
  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:#ffbfd4;font-size:13px;font-weight:600;
  margin-bottom:20px;
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 12px var(--c-primary)}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  background:linear-gradient(90deg,#fff 0%,#ffd7c2 45%,#ffb1c9 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:20px;
}
.hero-lead{color:var(--c-muted);font-size:17px;max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:12px;font-weight:700;font-size:15px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-primary{background:var(--grad-hot);color:#0f0710;box-shadow:var(--shadow-lg)}
.btn-primary:hover{transform:translateY(-2px);color:#0f0710}
.btn-ghost{border:1px solid var(--c-border-strong);color:#fff;background:rgba(255,255,255,.04)}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap}
.hero-stat .num{font-size:28px;font-weight:800;color:#fff;background:var(--grad-hot);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-stat .lbl{color:var(--c-muted);font-size:13px;letter-spacing:.5px}

.hero-visual{position:relative;height:100%;min-height:360px}
.hero-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--c-border-strong);
  aspect-ratio:4/5;
}
.hero-card img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.hero-card:hover img{transform:scale(1.04)}
.hero-card-mask{
  position:absolute;inset:auto 0 0 0;padding:22px;
  background:linear-gradient(180deg,transparent 0%,rgba(15,7,16,.85) 100%);
}
.hero-card-mask h4{font-size:18px;margin-bottom:6px}
.hero-card-mask span{color:var(--c-muted);font-size:13px}
.hero-float{
  position:absolute;bottom:-24px;left:-28px;
  padding:16px 20px;border-radius:16px;
  background:rgba(30,15,36,.9);border:1px solid var(--c-border-strong);
  backdrop-filter:blur(10px);box-shadow:var(--shadow);
  display:flex;align-items:center;gap:14px;
}
.hero-float .icon{
  width:44px;height:44px;border-radius:12px;background:var(--grad-warm);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;
}
.hero-float .t{font-weight:700;color:#fff}
.hero-float .s{font-size:12px;color:var(--c-muted)}

/* Sections */
section{padding:80px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 50px}
.section-tag{
  display:inline-block;padding:5px 14px;border-radius:999px;
  background:rgba(255,209,102,.12);border:1px solid rgba(255,209,102,.3);
  color:var(--c-accent);font-size:13px;font-weight:600;margin-bottom:14px;
}
.section-head h2{font-size:clamp(26px,3.2vw,38px);color:#fff}
.section-head p{color:var(--c-muted);font-size:16px}

/* Highlights */
.highlights{background:linear-gradient(180deg,var(--c-bg) 0%,var(--c-bg-2) 100%)}
.highlight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.h-card{
  padding:32px 28px;border-radius:var(--radius);
  background:var(--c-surface);border:1px solid var(--c-border);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.h-card:hover{transform:translateY(-4px);border-color:rgba(255,61,127,.4);box-shadow:var(--shadow)}
.h-icon{
  width:52px;height:52px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,61,127,.14);color:var(--c-primary);
  font-size:22px;font-weight:800;margin-bottom:18px;
  border:1px solid rgba(255,61,127,.3);
}
.h-card h3{font-size:19px;color:#fff}
.h-card p{color:var(--c-muted);font-size:14.5px;margin:0}

/* Countries */
.countries{background:var(--c-bg-2)}
.country-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.country-card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  aspect-ratio:3/4;border:1px solid var(--c-border);
  isolation:isolate;
}
.country-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.country-card::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,transparent 30%,rgba(15,7,16,.9) 100%);
}
.country-card:hover img{transform:scale(1.08)}
.country-info{position:absolute;left:0;right:0;bottom:0;padding:20px;z-index:2}
.country-flag{
  display:inline-block;padding:3px 10px;border-radius:999px;
  background:rgba(255,61,127,.25);border:1px solid rgba(255,61,127,.45);
  color:#ffd0dd;font-size:12px;font-weight:600;margin-bottom:8px;
}
.country-info h4{font-size:18px;color:#fff;margin:0 0 4px}
.country-info span{color:var(--c-muted);font-size:13px}

/* Scenes */
.scenes{background:linear-gradient(180deg,var(--c-bg-2) 0%,var(--c-bg) 100%)}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-card{
  background:var(--c-surface);border-radius:var(--radius);
  overflow:hidden;border:1px solid var(--c-border);
  transition:all .25s ease;
}
.scene-card:hover{border-color:rgba(255,138,61,.35);transform:translateY(-4px);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 .5s ease}
.scene-card:hover .scene-thumb img{transform:scale(1.06)}
.scene-badge{
  position:absolute;top:12px;left:12px;
  padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;
  background:rgba(15,7,16,.75);color:#fff;backdrop-filter:blur(6px);
}
.scene-body{padding:20px}
.scene-body h3{font-size:18px;color:#fff}
.scene-body p{color:var(--c-muted);font-size:14px;margin-bottom:14px}
.scene-tags{display:flex;flex-wrap:wrap;gap:6px}
.scene-tags span{
  padding:3px 10px;border-radius:6px;font-size:12px;
  background:rgba(255,255,255,.05);color:var(--c-muted);
  border:1px solid var(--c-border);
}

/* Process */
.process{background:var(--c-bg)}
.step-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.step{
  position:relative;padding:28px 22px;border-radius:var(--radius);
  background:var(--c-surface);border:1px solid var(--c-border);
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:var(--grad-hot);color:#0f0710;font-weight:900;font-size:16px;
  margin-bottom:16px;
}
.step h3{font-size:17px;color:#fff}
.step p{color:var(--c-muted);font-size:14px;margin:0}

/* Compare table */
.compare{background:var(--c-bg-2)}
.compare-wrap{
  border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--c-border);background:var(--c-surface);
}
.compare-row{
  display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;
  padding:18px 24px;align-items:center;
  border-bottom:1px solid var(--c-border);
}
.compare-row:last-child{border-bottom:none}
.compare-head{background:rgba(255,61,127,.08);font-weight:700;color:#fff}
.compare-row .label{color:#fff;font-weight:600}
.compare-row .val{color:var(--c-muted);font-size:14.5px}
.compare-row .best{color:var(--c-accent);font-weight:600}

/* FAQ */
.faq{background:var(--c-bg)}
.faq-list{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius);overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item:hover{border-color:var(--c-border-strong)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;width:100%;text-align:left;
  font-size:16px;font-weight:600;color:#fff;
}
.faq-q .plus{
  flex-shrink:0;width:28px;height:28px;border-radius:8px;
  background:rgba(255,61,127,.15);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;transition:transform .3s ease;
}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;padding:0 24px;
  color:var(--c-muted);font-size:14.5px;
  transition:max-height .35s ease,padding .35s ease;
}
.faq-item.open .faq-a{max-height:260px;padding:0 24px 22px}

/* CTA */
.cta{
  padding:80px 0;
  background:
    linear-gradient(120deg,rgba(15,7,16,.9) 0%,rgba(24,10,28,.85) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  text-align:center;position:relative;overflow:hidden;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(60% 80% at 50% 50%,rgba(255,61,127,.25),transparent 70%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto}
.cta h2{font-size:clamp(26px,3.2vw,40px);color:#fff;margin-bottom:16px}
.cta p{color:var(--c-muted);font-size:16px;margin-bottom:30px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* Footer */
.site-footer{
  background:#0a0409;border-top:1px solid var(--c-border);
  padding:60px 0 24px;color:var(--c-muted);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-brand p{font-size:14px;margin-top:16px;line-height:1.75}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.foot-col a{display:block;padding:5px 0;font-size:14px;color:var(--c-muted)}
.foot-col a:hover{color:var(--c-primary)}
.foot-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding-top:22px;border-top:1px solid var(--c-border);
  font-size:13px;color:var(--c-muted);
}

/* Responsive */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:420px;margin:0 auto}
  .highlight-grid{grid-template-columns:repeat(2,1fr)}
  .country-grid{grid-template-columns:repeat(3,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .step-row{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .compare-row{grid-template-columns:1fr 1fr 1fr;font-size:14px;padding:14px 18px}
  .compare-row > :nth-child(4){display:none}
}
@media (max-width:768px){
  section{padding:64px 0}
  .nav-menu{
    display:none;position:absolute;top:70px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(15,7,16,.98);padding:16px;
    border-bottom:1px solid var(--c-border);
  }
  .nav-menu.open{display:flex}
  .nav-menu a{padding:12px 16px;border-radius:10px}
  .nav-toggle{display:inline-block}
  .hero{padding:60px 0 70px}
  .hero-stats{gap:24px}
  .hero-stat .num{font-size:24px}
}
@media (max-width:520px){
  .container{width:94%}
  .highlight-grid{grid-template-columns:1fr}
  .country-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .scene-grid{grid-template-columns:1fr}
  .step-row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;text-align:center}
  .compare-row{grid-template-columns:1fr 1fr;font-size:13px}
  .compare-row > :nth-child(3),.compare-row > :nth-child(4){display:none}
  .btn{padding:12px 20px;font-size:14px}
  .hero-float{left:0;bottom:-18px;padding:12px 16px}
}