/* roulang page: index */
:root{
  --bg:#0b0d17;
  --bg-2:#12152233;
  --surface:#151827;
  --surface-2:#1c2135;
  --line:#262b40;
  --text:#eef1ff;
  --muted:#9aa0bd;
  --primary:#ff2a6d;
  --primary-2:#ff6a3d;
  --accent:#7c5cff;
  --success:#3ddc97;
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 4px 12px rgba(0,0,0,.25);
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --shadow-lg:0 24px 60px rgba(255,42,109,.18);
  --sp-1:.5rem;--sp-2:1rem;--sp-3:1.5rem;--sp-4:2rem;--sp-5:3rem;--sp-6:4.5rem;
  --font:'Helvetica Neue','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:1rem}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{font-weight:700;line-height:1.25;margin:0 0 var(--sp-2)}
p{margin:0 0 var(--sp-2);color:#c9cce4}
.container{width:min(1240px,92%);margin:0 auto}

/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,23,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:.9rem 0;gap:1rem}
.logo{display:flex;align-items:center;gap:.55rem;font-weight:800;font-size:1.2rem;letter-spacing:.5px}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  display:grid;place-items:center;color:#fff;font-size:1rem;
  box-shadow:0 8px 20px rgba(255,42,109,.4);
}
.nav-links{display:flex;gap:.4rem;align-items:center}
.nav-links a{
  padding:.5rem .95rem;border-radius:999px;font-size:.94rem;color:#d5d8ef;font-weight:500;
}
.nav-links a:hover{background:var(--surface-2);color:#fff}
.nav-links a.active{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:var(--shadow-sm)}
.nav-cta{
  padding:.55rem 1.1rem;border-radius:999px;
  background:#fff;color:#0b0d17!important;font-weight:700;font-size:.9rem;
}
.nav-cta:hover{background:var(--primary);color:#fff!important}
.burger{display:none;width:40px;height:40px;border-radius:10px;background:var(--surface-2);align-items:center;justify-content:center}
.burger span{display:block;width:18px;height:2px;background:#fff;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff}
.burger span::before{top:-6px}.burger span::after{top:6px}

/* Hero */
.hero{
  position:relative;
  padding:5.5rem 0 4.5rem;
  overflow:hidden;
  background:
    linear-gradient(180deg,rgba(11,13,23,.55) 0%,rgba(11,13,23,.9) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 -40% 0;height:80%;
  background:radial-gradient(60% 60% at 50% 30%,rgba(255,42,109,.25),transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;text-align:center;max-width:900px;margin:0 auto}
.pill{
  display:inline-flex;align-items:center;gap:.5rem;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  padding:.4rem 1rem;border-radius:999px;font-size:.85rem;color:#ffd1de;margin-bottom:1.4rem;
}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--success);box-shadow:0 0 12px var(--success)}
.hero h1{
  font-size:clamp(2rem,5.2vw,3.7rem);
  background:linear-gradient(90deg,#fff 0%,#ffb6c9 60%,#ffd0b0 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:1rem;
}
.hero .lead{font-size:1.1rem;color:#e6e8fb;max-width:720px;margin:0 auto 2rem}
.hero-actions{display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.9rem 1.6rem;border-radius:999px;font-weight:700;font-size:.98rem;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:var(--shadow-lg)}
.btn-primary:hover{transform:translateY(-2px);color:#fff}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.22)}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;
  margin-top:3rem;background:rgba(21,24,39,.7);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:1.4rem;backdrop-filter:blur(8px);
}
.hero-stat{text-align:center}
.hero-stat b{display:block;font-size:1.6rem;color:#fff}
.hero-stat span{color:var(--muted);font-size:.86rem}

/* Section base */
section{padding:var(--sp-6) 0}
.sec-head{text-align:center;max-width:720px;margin:0 auto var(--sp-4)}
.sec-tag{
  display:inline-block;padding:.35rem .9rem;border-radius:999px;
  background:rgba(255,42,109,.15);color:#ff8fb1;font-size:.82rem;letter-spacing:.5px;margin-bottom:.9rem;
}
.sec-head h2{font-size:clamp(1.6rem,3.3vw,2.4rem)}
.sec-head p{color:var(--muted)}

/* Category grid */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.cat-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  min-height:260px;box-shadow:var(--shadow);isolation:isolate;
  transition:transform .3s ease,box-shadow .3s ease;
}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .5s ease}
.cat-card::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(11,13,23,0) 30%,rgba(11,13,23,.9) 100%);
}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.cat-card:hover img{transform:scale(1.08)}
.cat-card .body{position:absolute;left:0;right:0;bottom:0;padding:1.3rem}
.cat-card h3{font-size:1.18rem;margin-bottom:.35rem}
.cat-card p{color:#dcdff5;font-size:.9rem;margin:0}
.cat-card .badge{
  position:absolute;top:1rem;left:1rem;padding:.25rem .7rem;
  background:rgba(0,0,0,.55);border:1px solid rgba(255,255,255,.2);
  border-radius:999px;font-size:.75rem;color:#fff;
}

/* Feature list */
.features{background:linear-gradient(180deg,#0d1020 0%,#0b0d17 100%)}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.feat{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.8rem;transition:transform .2s ease,border-color .2s ease;
}
.feat:hover{transform:translateY(-4px);border-color:rgba(255,42,109,.4)}
.feat-icon{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(255,42,109,.2),rgba(124,92,255,.2));
  color:var(--primary);font-size:1.4rem;margin-bottom:1rem;
}
.feat h3{font-size:1.15rem}
.feat p{color:var(--muted);font-size:.95rem;margin:0}

/* Latest posts */
.posts{background:#0a0c15}
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.1rem}
.post{
  display:flex;gap:1rem;padding:1rem;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .2s ease,box-shadow .2s ease;
}
.post:hover{transform:translateY(-3px);box-shadow:var(--shadow);color:inherit}
.post-thumb{
  flex:0 0 130px;height:100px;border-radius:10px;overflow:hidden;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  position:relative;
}
.post-thumb::after{
  content:"▶";position:absolute;inset:0;display:grid;place-items:center;
  color:#fff;font-size:1.3rem;opacity:.85;
}
.post-body{flex:1;min-width:0}
.post-body h3{font-size:1rem;line-height:1.4;margin:0 0 .4rem;color:#fff;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;gap:.7rem;color:var(--muted);font-size:.8rem}
.post-meta em{font-style:normal;color:#ff8fb1}
.post-body p{color:#b5b9d4;font-size:.85rem;margin:.4rem 0 0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty{
  grid-column:1/-1;text-align:center;padding:3rem;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted);
}

/* Highlight banner */
.highlight{
  position:relative;overflow:hidden;
  background:
    linear-gradient(90deg,rgba(11,13,23,.85),rgba(11,13,23,.55)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.highlight-inner{display:grid;grid-template-columns:1.2fr 1fr;gap:2.5rem;align-items:center}
.highlight h2{font-size:clamp(1.7rem,3vw,2.4rem);color:#fff}
.highlight p{color:#d8dbf1}
.check-list{display:grid;gap:.7rem;margin:1.4rem 0 1.8rem}
.check-list li{
  display:flex;gap:.7rem;align-items:flex-start;color:#e6e8fb;font-size:.98rem;
}
.check-list li::before{
  content:"✓";flex:0 0 24px;height:24px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;font-size:.8rem;display:grid;place-items:center;font-weight:700;
}
.highlight-visual{
  border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.1);
}
.highlight-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* How it works */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.1rem;position:relative}
.step{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:1.6rem;position:relative;
}
.step-num{
  position:absolute;top:-16px;left:1.6rem;
  width:36px;height:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;font-weight:800;display:grid;place-items:center;
  box-shadow:var(--shadow-sm);
}
.step h3{font-size:1.05rem;margin-top:.6rem}
.step p{color:var(--muted);font-size:.9rem;margin:0}

/* Reviews */
.reviews{background:#0a0c15}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.review{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:1.6rem;
}
.stars{color:#ffc857;margin-bottom:.7rem;letter-spacing:2px}
.review p{color:#d5d8ef;font-style:italic;margin-bottom:1.1rem}
.reviewer{display:flex;align-items:center;gap:.7rem}
.avatar{
  width:40px;height:40px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  color:#fff;display:grid;place-items:center;font-weight:700;
}
.reviewer b{display:block;font-size:.92rem}
.reviewer span{font-size:.78rem;color:var(--muted)}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:.8rem}
.faq{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:1.2rem 1.4rem;transition:border-color .2s ease;
}
.faq:hover{border-color:rgba(255,42,109,.5)}
.faq summary{
  cursor:pointer;font-weight:600;color:#fff;font-size:1.02rem;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-size:1.5rem;color:var(--primary);transition:transform .3s ease;line-height:1;
}
.faq[open] summary::after{transform:rotate(45deg)}
.faq p{color:var(--muted);margin:.8rem 0 0;font-size:.95rem}

/* CTA */
.cta{
  position:relative;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(255,42,109,.35),rgba(124,92,255,.35)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cta::before{content:"";position:absolute;inset:0;background:rgba(11,13,23,.55)}
.cta-inner{position:relative;text-align:center;max-width:760px;margin:0 auto}
.cta h2{font-size:clamp(1.8rem,3.4vw,2.6rem);color:#fff}
.cta p{color:#f0f2ff;margin-bottom:1.8rem}

/* Footer */
.site-footer{background:#07090f;border-top:1px solid var(--line);padding:3.5rem 0 1.5rem;color:#a5aacc}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem;margin-bottom:2rem}
.foot-brand p{color:#a5aacc;font-size:.92rem;margin-top:.8rem;max-width:340px}
.foot-col h4{color:#fff;font-size:1rem;margin-bottom:1rem}
.foot-col ul li{margin-bottom:.55rem;font-size:.9rem}
.foot-col a{color:#b5b9d4}
.foot-col a:hover{color:var(--primary)}
.foot-bottom{
  border-top:1px solid var(--line);padding-top:1.3rem;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem;
  font-size:.85rem;color:#7a7f9f;
}

/* Responsive */
@media (max-width:1024px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .feat-grid,.review-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .highlight-inner{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  section{padding:3.5rem 0}
  .hero{padding:4rem 0 3rem}
  .nav-links{
    position:fixed;inset:64px 0 auto 0;background:var(--bg);
    flex-direction:column;padding:1rem;border-bottom:1px solid var(--line);
    display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{width:100%;text-align:center;padding:.75rem}
  .burger{display:flex}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:1fr}
  .post{flex-direction:column}
  .post-thumb{width:100%;flex:0 0 auto;height:180px}
}
@media (max-width:520px){
  .cat-grid{grid-template-columns:1fr}
  .feat-grid,.review-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column}
  .btn{width:100%;justify-content:center}
}

/* roulang page: category2 */
:root{
  --brand:#ff2e63;
  --brand-2:#7a2bff;
  --ink:#0e0b1e;
  --ink-2:#1a1530;
  --panel:#161129;
  --panel-2:#1f1a37;
  --line:rgba(255,255,255,.08);
  --text:#f5f3ff;
  --muted:#a9a3c6;
  --gold:#ffd166;
  --ok:#22d3a0;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 20px 50px -20px rgba(255,46,99,.35);
  --shadow-soft:0 12px 30px -14px rgba(0,0,0,.55);
  --container:1180px;
  --transition:.25s ease;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:
    radial-gradient(1000px 500px at 90% -100px,rgba(122,43,255,.35),transparent 60%),
    radial-gradient(800px 400px at -100px 200px,rgba(255,46,99,.25),transparent 60%),
    var(--ink);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--brand)}
button{font-family:inherit;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
.container{max-width:var(--container);margin:0 auto;padding:0 22px}

/* header */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(14,11,30,.7);border-bottom:1px solid var(--line)}
.nav{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:18px;color:var(--text)}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:inline-flex;align-items:center;justify-content:center;font-size:18px;color:#fff;box-shadow:var(--shadow)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:10px 14px;border-radius:10px;font-size:15px;color:var(--muted);font-weight:500;position:relative}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#fff;background:linear-gradient(135deg,rgba(255,46,99,.22),rgba(122,43,255,.22));box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.nav-cta{background:linear-gradient(135deg,var(--brand),var(--brand-2))!important;color:#fff!important;padding:10px 20px!important;border-radius:999px!important;font-weight:700!important;box-shadow:var(--shadow)}
.nav-cta:hover{transform:translateY(-1px)}
.burger{display:none;background:transparent;border:0;width:42px;height:42px;position:relative}
.burger span,.burger span::before,.burger span::after{content:"";position:absolute;left:8px;right:8px;height:2px;background:#fff;border-radius:2px}
.burger span{top:20px}
.burger span::before{top:-7px;left:0;right:0}
.burger span::after{top:7px;left:0;right:0}

/* hero banner */
.cat-hero{position:relative;overflow:hidden;padding:80px 0 70px;isolation:isolate}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  filter:saturate(1.1);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(120deg,rgba(14,11,30,.92) 20%,rgba(14,11,30,.55) 60%,rgba(122,43,255,.5));
}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:18px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.crumbs a:hover{color:var(--brand)}
.crumbs span{opacity:.5}
.cat-hero .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);font-size:12.5px;color:#fff}
.chip.hot{background:linear-gradient(135deg,var(--brand),var(--brand-2));border-color:transparent}
.cat-hero h1{font-size:clamp(32px,4.6vw,54px);letter-spacing:.5px;margin-bottom:16px;background:linear-gradient(135deg,#fff,#f5b8ff 60%,#ffd166);-webkit-background-clip:text;background-clip:text;color:transparent}
.cat-hero .lead{max-width:720px;color:#e6e2ff;font-size:17px;margin-bottom:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px 28px;margin-bottom:28px}
.hero-meta div{display:flex;align-items:center;gap:8px;color:#e0dcf5;font-size:14.5px}
.hero-meta strong{color:var(--gold);font-weight:700}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;font-weight:700;font-size:15px;border:0;transition:transform var(--transition),box-shadow var(--transition),background var(--transition)}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 60px -20px rgba(255,46,99,.55);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}

/* highlights */
.section{padding:70px 0;position:relative}
.section-head{max-width:720px;margin:0 auto 42px;text-align:center}
.section-head .kicker{font-size:13px;letter-spacing:2px;color:var(--brand);font-weight:700;text-transform:uppercase;margin-bottom:10px}
.section-head h2{font-size:clamp(26px,3.2vw,38px);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15.5px}

.features{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform var(--transition),border-color var(--transition),box-shadow var(--transition)}
.feature:hover{transform:translateY(-4px);border-color:rgba(255,46,99,.4);box-shadow:var(--shadow-soft)}
.feature .ico{width:48px;height:48px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;font-size:22px;background:linear-gradient(135deg,rgba(255,46,99,.2),rgba(122,43,255,.2));color:#fff;margin-bottom:16px;border:1px solid rgba(255,255,255,.08)}
.feature h3{font-size:17px;margin-bottom:8px}
.feature p{color:var(--muted);font-size:14px;line-height:1.7}

/* content grid */
.content-band{background:linear-gradient(180deg,transparent,rgba(255,255,255,.02))}
.grid-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:relative;transition:transform var(--transition),box-shadow var(--transition)}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-soft)}
.card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .thumb img{transform:scale(1.06)}
.card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.7))}
.card .badge{position:absolute;top:12px;left:12px;z-index:2;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-size:12px;padding:5px 10px;border-radius:6px;font-weight:700;letter-spacing:.5px}
.card .quality{position:absolute;top:12px;right:12px;z-index:2;background:rgba(0,0,0,.55);border:1px solid rgba(255,255,255,.15);color:#ffd166;font-size:12px;padding:4px 8px;border-radius:6px;font-weight:700}
.card .meta-line{position:absolute;left:14px;right:14px;bottom:12px;z-index:2;display:flex;justify-content:space-between;font-size:12.5px;color:#e6e2ff}
.card .info{padding:18px 20px 22px}
.card h3{font-size:17px;margin-bottom:8px}
.card .desc{color:var(--muted);font-size:14px;margin-bottom:14px;min-height:44px}
.card .tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{font-size:12px;padding:4px 9px;border-radius:6px;background:rgba(255,255,255,.06);color:#c9c4e6;border:1px solid var(--line)}

/* scenes */
.scenes{display:grid;grid-template-columns:1.15fr 1fr;gap:36px;align-items:center}
.scenes .visual{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.scenes .visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.scenes .visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(14,11,30,.7))}
.scenes .visual .float{position:absolute;left:20px;bottom:20px;right:20px;display:flex;justify-content:space-between;color:#fff;z-index:2;font-size:13px}
.scenes .visual .float b{color:var(--gold)}
.scene-list{display:grid;gap:16px}
.scene-item{padding:20px 22px;background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:var(--radius-sm);display:flex;gap:16px;align-items:flex-start;transition:border-color var(--transition),transform var(--transition)}
.scene-item:hover{border-color:rgba(255,46,99,.4);transform:translateX(4px)}
.scene-item .num{flex-shrink:0;width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff}
.scene-item h4{font-size:16px;margin-bottom:6px}
.scene-item p{color:var(--muted);font-size:14px}

/* flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.flow-step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;position:relative;transition:border-color var(--transition)}
.flow-step:hover{border-color:rgba(122,43,255,.5)}
.flow-step .step-num{font-family:"Helvetica Neue",sans-serif;font-size:44px;font-weight:800;background:linear-gradient(135deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1;margin-bottom:14px}
.flow-step h4{font-size:17px;margin-bottom:8px}
.flow-step p{color:var(--muted);font-size:14px}

/* stats strip */
.stats-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:linear-gradient(135deg,rgba(255,46,99,.14),rgba(122,43,255,.14));border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.stat{padding:32px 22px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat .n{font-size:32px;font-weight:800;background:linear-gradient(135deg,#fff,var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .t{color:var(--muted);font-size:13.5px;margin-top:4px}

/* faq */
.faq{max-width:880px;margin:0 auto;display:grid;gap:14px}
.faq details{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 22px;transition:border-color var(--transition)}
.faq details[open]{border-color:rgba(255,46,99,.35)}
.faq summary{cursor:pointer;font-weight:700;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:10px;color:#fff}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--brand);transition:transform var(--transition)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{color:var(--muted);margin-top:12px;font-size:14.5px;line-height:1.8}

/* cta */
.cta-box{position:relative;overflow:hidden;padding:64px 40px;border-radius:var(--radius);border:1px solid rgba(255,255,255,.1);background:
  radial-gradient(600px 300px at 20% 20%,rgba(255,46,99,.35),transparent 60%),
  radial-gradient(600px 300px at 80% 80%,rgba(122,43,255,.4),transparent 60%),
  var(--ink-2);
  text-align:center;
}
.cta-box h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px}
.cta-box p{color:#dedaf7;max-width:640px;margin:0 auto 24px}
.cta-box .btn-row{justify-content:center}

/* footer */
.site-footer{background:#0a0817;border-top:1px solid var(--line);padding:60px 0 26px;margin-top:60px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;margin-bottom:36px}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:14px;line-height:1.8}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.foot-col ul{display:grid;gap:10px}
.foot-col a,.foot-col li{color:var(--muted);font-size:14px}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:13px}

/* responsive */
@media (max-width:1024px){
  .features{grid-template-columns:repeat(2,1fr)}
  .grid-cards{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .scenes{grid-template-columns:1fr}
  .stats-strip{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid var(--line)}
  .stat:nth-child(2){border-right:0}
}
@media (max-width:768px){
  .nav-links{position:absolute;top:72px;left:0;right:0;background:rgba(14,11,30,.98);flex-direction:column;align-items:stretch;padding:16px 22px;gap:6px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:all var(--transition);border-bottom:1px solid var(--line)}
  .nav-links.open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-links a{padding:12px 14px}
  .burger{display:block}
  .cat-hero{padding:56px 0 50px}
  .section{padding:54px 0}
  .stats-strip{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:520px){
  .grid-cards{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .cta-box{padding:44px 22px}
  .btn{padding:12px 20px;font-size:14px}
  .stats-strip{grid-template-columns:1fr}
  .stat{border-right:0}
}

/* roulang page: category3 */
:root{
  --c-bg:#0b0710;
  --c-bg-2:#150c1e;
  --c-surface:#1c1327;
  --c-surface-2:#241831;
  --c-line:rgba(255,255,255,.08);
  --c-text:#f4eef7;
  --c-muted:#a89bb8;
  --c-primary:#ff3b7a;
  --c-primary-2:#ff7a3b;
  --c-accent:#8b5cf6;
  --c-gold:#ffb84d;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --shadow-sm:0 4px 14px rgba(0,0,0,.35);
  --shadow-md:0 12px 32px rgba(0,0,0,.45);
  --shadow-glow:0 8px 40px rgba(255,59,122,.35);
  --sp:clamp(16px,2vw,24px);
  --gradient:linear-gradient(120deg,#ff3b7a 0%,#ff7a3b 55%,#ffb84d 100%);
  --gradient-2:linear-gradient(140deg,#8b5cf6 0%,#ff3b7a 100%);
}
*,*::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;border:0}
a{color:inherit;text-decoration:none;transition:color .25s ease}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{list-style:none;margin:0;padding:0}
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:100%;max-width:1240px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,7,16,.85);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--c-line);
}
.site-header .nav{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;gap:24px;
}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#fff}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--gradient);color:#fff;font-weight:900;font-size:18px;
  box-shadow:var(--shadow-glow);
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  padding:8px 14px;border-radius:999px;font-size:15px;color:var(--c-muted);
  transition:all .25s ease;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{color:#fff;background:rgba(255,59,122,.15);box-shadow:inset 0 0 0 1px rgba(255,59,122,.35)}
.nav-links .nav-cta{
  background:var(--gradient);color:#fff !important;
  padding:10px 20px;font-weight:700;
  box-shadow:var(--shadow-glow);
}
.nav-links .nav-cta:hover{transform:translateY(-1px);filter:brightness(1.05)}
.burger{display:none;width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.06);position:relative}
.burger span,.burger span::before,.burger span::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:20px;height:2px;background:#fff;border-radius:2px;
}
.burger span::before{transform:translate(-50%,-8px)}
.burger span::after{transform:translate(-50%,6px)}

/* Hero */
.hero{
  position:relative;
  padding:96px 0 88px;
  background:
    linear-gradient(180deg,rgba(11,7,16,.75) 0%,rgba(11,7,16,.9) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:auto -10% -30% -10%;height:60%;
  background:radial-gradient(ellipse at center,rgba(255,59,122,.35),transparent 60%);
  filter:blur(30px);pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.crumbs{font-size:13px;color:var(--c-muted);margin-bottom:22px}
.crumbs a:hover{color:#fff}
.crumbs .sep{margin:0 8px;opacity:.5}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,59,122,.15);border:1px solid rgba(255,59,122,.35);
  font-size:13px;color:#ffd0dd;margin-bottom:20px;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 12px var(--c-primary)}
.hero h1{
  font-size:clamp(32px,5vw,58px);
  background:linear-gradient(90deg,#fff 0%,#ffd0dd 60%,#ffb84d 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  max-width:900px;
}
.hero-sub{
  max-width:760px;font-size:17px;color:#cfc4dc;margin-top:12px;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:12px;font-weight:700;font-size:15px;
  transition:all .25s ease;
}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);color:#fff}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border:1px solid rgba(255,255,255,.15)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:820px;
}
.hero-stat{
  background:rgba(255,255,255,.04);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:18px 20px;backdrop-filter:blur(6px);
}
.hero-stat .num{
  font-size:26px;font-weight:800;
  background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-stat .lb{font-size:13px;color:var(--c-muted);margin-top:4px}

/* Section base */
.section{padding:80px 0;position:relative}
.section-alt{background:var(--c-bg-2)}
.sec-head{max-width:760px;margin:0 auto 44px;text-align:center}
.sec-tag{
  display:inline-block;padding:5px 14px;border-radius:999px;
  background:rgba(139,92,246,.15);color:#c9b8ff;border:1px solid rgba(139,92,246,.35);
  font-size:12px;letter-spacing:2px;margin-bottom:14px;
}
.sec-head h2{font-size:clamp(26px,3.5vw,38px)}
.sec-head p{color:var(--c-muted);font-size:16px;margin-top:8px}

/* Filter chips */
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:36px}
.chip{
  padding:8px 18px;border-radius:999px;font-size:14px;
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-muted);
  transition:all .25s;
}
.chip:hover{color:#fff;border-color:var(--c-primary);background:rgba(255,59,122,.1)}
.chip.on{background:var(--gradient);color:#fff;border-color:transparent;box-shadow:var(--shadow-sm)}

/* Live grid */
.live-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.live-card{
  background:var(--c-surface);border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-line);transition:all .3s ease;
  display:flex;flex-direction:column;
}
.live-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(255,59,122,.35)}
.live-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.live-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.live-card:hover .live-thumb img{transform:scale(1.08)}
.live-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(11,7,16,.85) 100%);
}
.live-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:4px 10px;border-radius:6px;font-size:12px;font-weight:700;
  background:var(--c-primary);color:#fff;letter-spacing:.5px;
  display:inline-flex;align-items:center;gap:6px;
}
.live-tag .pulse{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.live-duration{
  position:absolute;bottom:12px;right:12px;z-index:2;
  padding:3px 8px;border-radius:6px;font-size:12px;
  background:rgba(0,0,0,.7);color:#fff;
}
.live-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:56px;height:56px;border-radius:50%;
  background:rgba(255,59,122,.9);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:20px;
  z-index:2;opacity:0;transition:all .3s;
}
.live-card:hover .live-play{opacity:1}
.live-body{padding:18px 20px 22px;flex:1;display:flex;flex-direction:column}
.live-body h3{font-size:17px;font-weight:700;margin-bottom:8px}
.live-body h3 a:hover{color:var(--c-primary)}
.live-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-muted);margin-top:auto}
.live-meta span{display:inline-flex;align-items:center;gap:4px}
.live-hot{color:var(--c-gold)}

/* Feature grid */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:28px 24px;
  transition:all .3s;position:relative;overflow:hidden;
}
.feature::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--gradient);transform:scaleX(0);transform-origin:left;transition:transform .4s;
}
.feature:hover{transform:translateY(-4px);border-color:rgba(255,59,122,.3)}
.feature:hover::before{transform:scaleX(1)}
.feature-icon{
  width:52px;height:52px;border-radius:14px;
  background:var(--gradient-2);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:24px;
  margin-bottom:18px;box-shadow:var(--shadow-sm);
}
.feature h3{font-size:18px;margin-bottom:10px}
.feature p{font-size:14px;color:var(--c-muted);margin:0}

/* Scene */
.scene-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.scene-img{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.scene-img img{width:100%;height:460px;object-fit:cover}
.scene-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(139,92,246,.2),rgba(255,59,122,.15));
}
.scene-list{display:flex;flex-direction:column;gap:20px}
.scene-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:22px 24px;
  display:flex;gap:16px;transition:all .3s;
}
.scene-item:hover{border-color:rgba(255,59,122,.35);transform:translateX(4px)}
.scene-num{
  flex:0 0 44px;height:44px;border-radius:12px;
  background:var(--gradient);color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;font-size:18px;
}
.scene-item h3{font-size:17px;margin-bottom:6px}
.scene-item p{font-size:14px;color:var(--c-muted);margin:0}

/* Flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.flow-step{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:28px 22px;text-align:center;
  position:relative;transition:all .3s;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.flow-idx{
  width:44px;height:44px;border-radius:50%;
  background:var(--c-bg-2);border:2px solid var(--c-primary);
  color:var(--c-primary);font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;
}
.flow-step h3{font-size:17px;margin-bottom:8px}
.flow-step p{font-size:14px;color:var(--c-muted);margin:0}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;transition:border-color .25s;
}
.faq-item:hover{border-color:rgba(255,59,122,.3)}
.faq-q{
  width:100%;text-align:left;padding:20px 24px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-size:16px;font-weight:600;color:#fff;
}
.faq-q .plus{
  width:28px;height:28px;border-radius:50%;background:rgba(255,59,122,.15);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  font-size:18px;flex-shrink:0;transition:transform .3s;
}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .4s ease,padding .3s ease;
  padding:0 24px;color:var(--c-muted);font-size:15px;
}
.faq-item.open .faq-a{max-height:400px;padding:0 24px 22px}

/* CTA */
.cta{
  background:
    linear-gradient(120deg,rgba(255,59,122,.85),rgba(139,92,246,.75)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:80px 0;text-align:center;position:relative;overflow:hidden;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse at center,rgba(0,0,0,0),rgba(0,0,0,.35));
}
.cta .container{position:relative}
.cta h2{font-size:clamp(28px,4vw,44px);color:#fff;margin-bottom:16px}
.cta p{color:rgba(255,255,255,.9);max-width:680px;margin:0 auto 28px;font-size:16px}
.cta .btn-primary{background:#fff;color:var(--c-primary)}
.cta .btn-primary:hover{background:#fff}
.cta .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}

/* Footer */
.site-footer{
  background:#080510;padding:64px 0 28px;border-top:1px solid var(--c-line);
}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;margin-bottom:44px;
}
.foot-brand p{color:var(--c-muted);font-size:14px;margin-top:14px;line-height:1.75}
.foot-col h4{font-size:15px;margin-bottom:16px;color:#fff}
.foot-col ul li{margin-bottom:10px;font-size:14px;color:var(--c-muted)}
.foot-col ul li a:hover{color:var(--c-primary)}
.foot-bottom{
  border-top:1px solid var(--c-line);padding-top:22px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:var(--c-muted);
}

/* Responsive */
@media (max-width:1024px){
  .live-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .nav-links{
    position:absolute;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:rgba(11,7,16,.98);padding:16px;gap:4px;
    border-bottom:1px solid var(--c-line);
    display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;border-radius:10px}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .hero{padding:64px 0}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .scene-wrap{grid-template-columns:1fr}
  .scene-img img{height:280px}
  .section{padding:56px 0}
}
@media (max-width:520px){
  .live-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  .btn{padding:12px 20px;font-size:14px}
}

/* roulang page: category1 */
:root{
  --brand:#ff2e63;
  --brand-2:#ff6b9a;
  --accent:#ffb347;
  --bg:#0b0b12;
  --bg-2:#12121c;
  --bg-3:#1a1a28;
  --line:#26263a;
  --text:#f4f4f8;
  --muted:#a4a4b8;
  --card:#161624;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 12px 40px rgba(0,0,0,.35);
  --shadow-sm:0 6px 20px rgba(0,0,0,.25);
  --tr:.28s ease;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--brand-2)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
p{margin:0}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 22px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,11,18,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header .nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:.5px}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-weight:900;font-size:18px;
  box-shadow:0 6px 18px rgba(255,46,99,.4);
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  padding:10px 16px;border-radius:10px;font-size:15px;color:var(--muted);
  transition:all var(--tr);
}
.nav-links a:hover{color:#fff;background:var(--bg-3)}
.nav-links a.active{color:#fff;background:linear-gradient(135deg,rgba(255,46,99,.2),rgba(255,107,154,.15));border:1px solid rgba(255,46,99,.35)}
.nav-cta{
  background:linear-gradient(135deg,var(--brand),var(--brand-2))!important;
  color:#fff!important;padding:10px 20px!important;
  box-shadow:0 8px 22px rgba(255,46,99,.35);
}
.nav-cta:hover{transform:translateY(-1px);filter:brightness(1.08)}
.burger{display:none;width:40px;height:40px;border-radius:8px;background:var(--bg-3);position:relative}
.burger span,.burger span::before,.burger span::after{
  content:"";position:absolute;left:10px;width:20px;height:2px;background:#fff;border-radius:2px;
}
.burger span{top:50%;margin-top:-1px}
.burger span::before{top:-7px}
.burger span::after{top:7px}

/* Banner */
.cat-banner{
  position:relative;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(11,11,18,.85) 0%,rgba(11,11,18,.55) 60%,rgba(255,46,99,.35) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:90px 0 100px;
  border-bottom:1px solid var(--line);
}
.cat-banner::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:80px;
  background:linear-gradient(to bottom,transparent,var(--bg));
}
.crumbs{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:14px;margin-bottom:18px}
.crumbs a:hover{color:var(--brand-2)}
.crumbs .sep{opacity:.5}
.banner-inner{max-width:780px;position:relative;z-index:2}
.tag-pill{
  display:inline-block;padding:6px 14px;border-radius:100px;
  background:rgba(255,46,99,.15);color:var(--brand-2);
  font-size:13px;font-weight:600;border:1px solid rgba(255,46,99,.3);
  margin-bottom:18px;
}
.cat-banner h1{
  font-size:clamp(32px,5vw,52px);
  background:linear-gradient(135deg,#fff 30%,var(--brand-2));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  margin-bottom:18px;
}
.cat-banner p.lead{font-size:18px;color:#d4d4de;max-width:640px;margin-bottom:28px}
.banner-cta{display:flex;flex-wrap:wrap;gap:14px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:12px;font-weight:600;font-size:15px;
  transition:all var(--tr);cursor:pointer;
}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 10px 26px rgba(255,46,99,.4)}
.btn-primary:hover{transform:translateY(-2px);color:#fff;filter:brightness(1.08)}
.btn-ghost{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.15);color:#fff}

.banner-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:44px;position:relative;z-index:2;
}
.banner-stats .stat{
  background:rgba(22,22,36,.7);border:1px solid var(--line);
  padding:20px;border-radius:var(--radius);backdrop-filter:blur(8px);
}
.banner-stats .num{font-size:28px;font-weight:800;color:var(--brand-2);display:block}
.banner-stats .lbl{color:var(--muted);font-size:13px;margin-top:4px}

/* Section base */
section{padding:80px 0}
.sec-head{text-align:center;margin-bottom:50px}
.sec-head .kicker{
  display:inline-block;font-size:13px;letter-spacing:2px;
  color:var(--brand-2);font-weight:700;text-transform:uppercase;
  margin-bottom:12px;
}
.sec-head h2{font-size:clamp(26px,3.5vw,38px);margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:16px;max-width:680px;margin:0 auto}

/* Features */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feat-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:32px 28px;
  transition:all var(--tr);position:relative;overflow:hidden;
}
.feat-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  transform:scaleX(0);transform-origin:left;transition:transform .4s ease;
}
.feat-card:hover{transform:translateY(-4px);border-color:rgba(255,46,99,.35);box-shadow:var(--shadow)}
.feat-card:hover::before{transform:scaleX(1)}
.feat-icon{
  width:52px;height:52px;border-radius:12px;
  background:linear-gradient(135deg,rgba(255,46,99,.2),rgba(255,179,71,.15));
  display:flex;align-items:center;justify-content:center;font-size:24px;
  margin-bottom:20px;color:var(--brand-2);
}
.feat-card h3{font-size:19px;margin-bottom:10px}
.feat-card p{color:var(--muted);font-size:15px}

/* Content grid */
.content-wrap{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.grid-videos{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.video-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:all var(--tr);
}
.video-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(255,46,99,.3)}
.video-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.video-card:hover .video-thumb img{transform:scale(1.06)}
.video-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(0,0,0,.6),transparent 40%);
}
.badge-hd{
  position:absolute;top:12px;left:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff;font-size:12px;font-weight:700;
  padding:4px 10px;border-radius:6px;z-index:2;
}
.badge-time{
  position:absolute;bottom:12px;right:12px;
  background:rgba(0,0,0,.7);color:#fff;font-size:12px;
  padding:3px 8px;border-radius:6px;z-index:2;
}
.video-info{padding:18px 20px}
.video-info h3{font-size:16px;margin-bottom:10px;line-height:1.4}
.video-meta{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:13px}
.tag-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.tag{
  font-size:12px;padding:3px 10px;border-radius:100px;
  background:var(--bg-3);color:var(--muted);border:1px solid var(--line);
}

/* Scenes */
.scenes-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.scene-card{
  display:grid;grid-template-columns:180px 1fr;gap:22px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:22px;
  transition:all var(--tr);
}
.scene-card:hover{border-color:rgba(255,46,99,.35);box-shadow:var(--shadow-sm)}
.scene-img{border-radius:12px;overflow:hidden;aspect-ratio:1/1}
.scene-img img{width:100%;height:100%;object-fit:cover}
.scene-body h3{font-size:18px;margin-bottom:10px;color:#fff}
.scene-body p{color:var(--muted);font-size:14px;margin-bottom:12px}
.scene-body .scene-tags{display:flex;flex-wrap:wrap;gap:6px}

/* Steps */
.steps-wrap{background:var(--bg-2)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px 24px;position:relative;
  transition:all var(--tr);
}
.step:hover{transform:translateY(-3px);border-color:rgba(255,46,99,.3)}
.step-num{
  position:absolute;top:-16px;left:24px;
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#fff;font-weight:800;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(255,46,99,.4);
}
.step h3{font-size:17px;margin:16px 0 8px}
.step p{color:var(--muted);font-size:14px}

/* FAQ */
.faq-list{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:all var(--tr);
}
.faq-item:hover{border-color:rgba(255,46,99,.3)}
.faq-item summary{
  padding:20px 24px;font-weight:600;font-size:16px;
  cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;color:var(--brand-2);
  transition:transform var(--tr);font-weight:400;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .ans{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.75}

/* CTA */
.cta-block{
  position:relative;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(11,11,18,.9),rgba(255,46,99,.5)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:80px 0;text-align:center;
  border-radius:var(--radius-lg);
  margin:60px 0;
}
.cta-block h2{font-size:clamp(26px,3.5vw,38px);margin-bottom:16px;color:#fff}
.cta-block p{color:#e8e8ef;font-size:17px;margin-bottom:28px;max-width:620px;margin-left:auto;margin-right:auto}
.cta-block .banner-cta{justify-content:center}

/* Footer */
.site-footer{background:#07070c;border-top:1px solid var(--line);padding:60px 0 24px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:40px}
.foot-brand p{color:var(--muted);margin-top:16px;font-size:14px;line-height:1.7}
.foot-col h4{font-size:15px;margin-bottom:16px;color:#fff}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a,.foot-col li{color:var(--muted);font-size:14px}
.foot-col a:hover{color:var(--brand-2)}
.foot-bottom{
  border-top:1px solid var(--line);padding-top:22px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  color:var(--muted);font-size:13px;
}

/* Responsive */
@media(max-width:1024px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .grid-videos{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
  section{padding:60px 0}
  .cat-banner{padding:70px 0 80px}
  .banner-stats{grid-template-columns:repeat(2,1fr)}
  .nav-links{
    display:none;position:absolute;top:72px;left:0;right:0;
    flex-direction:column;background:var(--bg-2);
    padding:16px;border-bottom:1px solid var(--line);gap:2px;
  }
  .nav-links.open{display:flex}
  .nav-links a{width:100%}
  .burger{display:inline-flex;align-items:center;justify-content:center}
}
@media(max-width:520px){
  .feat-grid,.grid-videos,.scenes-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .scene-card{grid-template-columns:1fr}
  .scene-img{aspect-ratio:16/10}
  .foot-grid{grid-template-columns:1fr}
  .banner-stats{grid-template-columns:1fr 1fr}
  .cta-block{margin:40px 0;padding:60px 20px}
}

/* roulang page: category4 */
:root{
  --c-bg:#0d0a14;
  --c-bg-2:#141024;
  --c-bg-3:#1c1633;
  --c-surface:#211a3d;
  --c-primary:#ff3b8a;
  --c-primary-2:#8a3bff;
  --c-accent:#3bd8ff;
  --c-text:#f2ecff;
  --c-muted:#a89ec9;
  --c-border:rgba(255,255,255,0.08);
  --c-border-2:rgba(255,255,255,0.14);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-xl:32px;
  --sh-1:0 6px 20px rgba(0,0,0,0.35);
  --sh-2:0 18px 50px rgba(138,59,255,0.28);
  --grad-1:linear-gradient(135deg,#ff3b8a 0%,#8a3bff 60%,#3bd8ff 100%);
  --grad-2:linear-gradient(180deg,rgba(13,10,20,0) 0%,rgba(13,10,20,0.85) 80%,#0d0a14 100%);
}
*,*::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;
}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.container{max-width:1240px;margin:0 auto;padding:0 24px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(13,10,20,0.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-border);
}
.site-header .nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:0.5px}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-1);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:20px;font-weight:900;
  box-shadow:0 6px 18px rgba(255,59,138,0.45);
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  padding:10px 16px;border-radius:10px;
  font-size:15px;color:var(--c-muted);
  transition:all .25s ease;
}
.nav-links a:hover{color:var(--c-text);background:rgba(255,255,255,0.05)}
.nav-links a.active{color:var(--c-text);background:rgba(138,59,255,0.18)}
.nav-links .nav-cta{
  background:var(--grad-1);color:#fff;font-weight:700;
  padding:10px 22px;margin-left:8px;
  box-shadow:0 8px 20px rgba(255,59,138,0.35);
}
.nav-links .nav-cta:hover{transform:translateY(-1px);color:#fff;background:var(--grad-1)}
.burger{display:none;width:40px;height:40px;position:relative}
.burger span,.burger span::before,.burger span::after{
  content:"";position:absolute;left:8px;right:8px;height:2px;background:var(--c-text);border-radius:2px;
}
.burger span{top:19px}
.burger span::before{top:-7px;left:0;right:0}
.burger span::after{top:7px;left:0;right:0}

/* Page Hero (differ from home) */
.cat-hero{
  position:relative;
  padding:80px 0 100px;
  background:
    linear-gradient(120deg,rgba(13,10,20,0.5) 0%,rgba(13,10,20,0.85) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;top:-140px;right:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,59,138,0.35),transparent 70%);
  filter:blur(20px);
}
.cat-hero::after{
  content:"";position:absolute;bottom:-160px;left:-100px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(59,216,255,0.28),transparent 70%);
  filter:blur(20px);
}
.crumbs{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);margin-bottom:24px;position:relative;z-index:2;
}
.crumbs a:hover{color:var(--c-accent)}
.crumbs .sep{opacity:.5}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,59,138,0.12);
  border:1px solid rgba(255,59,138,0.32);
  color:#ffb0d0;font-size:13px;font-weight:600;
  margin-bottom:22px;position:relative;z-index:2;
}
.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(32px,4.6vw,54px);
  max-width:820px;margin-bottom:20px;position:relative;z-index:2;
  background:linear-gradient(90deg,#fff 0%,#ffcce0 60%,#c9b4ff 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-lead{
  max-width:720px;font-size:17px;color:#d9d3ee;position:relative;z-index:2;
  margin-bottom:32px;
}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  max-width:780px;position:relative;z-index:2;
}
.hero-stats .st{
  background:rgba(33,26,61,0.6);
  border:1px solid var(--c-border-2);
  border-radius:var(--r-md);
  padding:18px 20px;
  backdrop-filter:blur(6px);
}
.hero-stats .st b{
  display:block;font-size:26px;font-weight:800;
  background:var(--grad-1);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  margin-bottom:4px;
}
.hero-stats .st span{font-size:13px;color:var(--c-muted)}

/* Sections common */
section{padding:80px 0}
.sec-head{text-align:center;max-width:720px;margin:0 auto 48px}
.sec-eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:12px;
}
.sec-head h2{font-size:clamp(26px,3.2vw,38px);margin-bottom:14px}
.sec-head p{color:var(--c-muted);font-size:16px}

/* Genre grid */
.genre-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.genre-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  transition:transform .35s ease,box-shadow .35s ease,border-color .3s ease;
}
.genre-card:hover{transform:translateY(-6px);box-shadow:var(--sh-2);border-color:rgba(255,59,138,0.35)}
.genre-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.genre-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.genre-card:hover .thumb img{transform:scale(1.08)}
.genre-card .thumb::after{
  content:"";position:absolute;inset:0;background:var(--grad-2);
}
.genre-card .badges{position:absolute;top:14px;left:14px;display:flex;gap:8px;z-index:2}
.badge{
  display:inline-block;padding:5px 10px;font-size:12px;font-weight:600;
  border-radius:6px;color:#fff;
}
.badge-hot{background:linear-gradient(135deg,#ff3b8a,#ff6b3b)}
.badge-new{background:linear-gradient(135deg,#8a3bff,#3b8aff)}
.badge-4k{background:rgba(0,0,0,0.6);border:1px solid rgba(255,255,255,0.3)}
.genre-card .body{padding:22px 24px 26px}
.genre-card h3{font-size:20px;margin-bottom:10px}
.genre-card .desc{color:var(--c-muted);font-size:14px;margin-bottom:16px;min-height:44px}
.genre-card .meta{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:16px;border-top:1px solid var(--c-border);
  font-size:13px;color:var(--c-muted);
}
.genre-card .meta strong{color:var(--c-accent);font-weight:600}

/* Feature strip */
.feature-strip{
  background:linear-gradient(180deg,var(--c-bg) 0%,var(--c-bg-2) 100%);
}
.feature-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.feature-item{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-lg);
  padding:32px 24px;
  transition:all .3s ease;
  position:relative;overflow:hidden;
}
.feature-item::before{
  content:"";position:absolute;top:-50%;right:-50%;width:200%;height:200%;
  background:radial-gradient(circle at center,rgba(255,59,138,0.08),transparent 40%);
  opacity:0;transition:opacity .4s ease;
}
.feature-item:hover{transform:translateY(-4px);border-color:rgba(138,59,255,0.35)}
.feature-item:hover::before{opacity:1}
.feature-icon{
  width:56px;height:56px;border-radius:14px;
  background:var(--grad-1);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:24px;margin-bottom:20px;
  box-shadow:0 8px 18px rgba(255,59,138,0.32);
  position:relative;z-index:1;
}
.feature-item h3{font-size:17px;margin-bottom:10px;position:relative;z-index:1}
.feature-item p{color:var(--c-muted);font-size:14px;position:relative;z-index:1}

/* Scene section - alternating rows */
.scene-list{display:flex;flex-direction:column;gap:60px}
.scene-row{
  display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;
}
.scene-row.reverse .scene-img{order:2}
.scene-img{
  border-radius:var(--r-xl);overflow:hidden;
  aspect-ratio:4/3;position:relative;
  box-shadow:var(--sh-2);
}
.scene-img img{width:100%;height:100%;object-fit:cover}
.scene-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(255,59,138,0.15),rgba(138,59,255,0.15));
  mix-blend-mode:overlay;
}
.scene-info .sec-eyebrow{margin-bottom:14px}
.scene-info h3{font-size:28px;margin-bottom:18px}
.scene-info p{color:#c9c1e2;margin-bottom:20px;font-size:15px}
.scene-info ul{display:grid;gap:12px}
.scene-info ul li{
  display:flex;align-items:flex-start;gap:12px;
  color:#d3cde8;font-size:15px;
}
.scene-info ul li::before{
  content:"";flex-shrink:0;width:20px;height:20px;border-radius:6px;
  background:var(--grad-1);
  background-image:linear-gradient(135deg,var(--c-primary),var(--c-primary-2)),url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3e%3cpath d='M5 12l5 5L20 7'/%3e%3c/svg%3e");
  background-blend-mode:normal;background-size:cover,14px 14px;background-position:center;background-repeat:no-repeat;
  margin-top:3px;
}

/* Flow */
.flow-wrap{background:linear-gradient(180deg,var(--c-bg-2) 0%,var(--c-bg) 100%)}
.flow-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;
}
.flow-grid::before{
  content:"";position:absolute;top:32px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,transparent 0%,var(--c-primary-2) 20%,var(--c-primary) 50%,var(--c-accent) 80%,transparent 100%);
  z-index:0;
}
.flow-step{
  position:relative;z-index:1;text-align:center;
  padding:0 8px;
}
.flow-num{
  width:66px;height:66px;border-radius:50%;
  background:var(--c-bg);
  border:2px solid var(--c-primary);
  color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:900;margin-bottom:20px;
  box-shadow:0 0 0 6px rgba(255,59,138,0.12);
}
.flow-step h4{font-size:18px;margin-bottom:10px}
.flow-step p{color:var(--c-muted);font-size:14px}

/* FAQ */
.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:border-color .25s ease;
}
.faq-item[open]{border-color:rgba(255,59,138,0.35)}
.faq-item summary{
  list-style:none;padding:22px 26px;
  cursor:pointer;font-weight:600;font-size:16px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:28px;font-weight:400;color:var(--c-primary);
  transition:transform .3s ease;line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 26px 24px;color:var(--c-muted);font-size:15px}

/* CTA */
.cta-band{
  position:relative;padding:90px 0;
  background:
    linear-gradient(120deg,rgba(255,59,138,0.85) 0%,rgba(138,59,255,0.85) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  text-align:center;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 30% 30%,rgba(255,255,255,0.18),transparent 40%),
             radial-gradient(circle at 70% 70%,rgba(59,216,255,0.25),transparent 40%);
}
.cta-band .container{position:relative;z-index:1}
.cta-band h2{font-size:clamp(28px,3.6vw,42px);color:#fff;margin-bottom:16px}
.cta-band p{color:rgba(255,255,255,0.9);font-size:17px;max-width:640px;margin:0 auto 32px}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 30px;border-radius:999px;
  font-weight:700;font-size:15px;transition:all .25s ease;
  border:2px solid transparent;
}
.btn-primary{
  background:#fff;color:var(--c-primary);
  box-shadow:0 12px 30px rgba(0,0,0,0.25);
}
.btn-primary:hover{transform:translateY(-2px);color:var(--c-primary-2);box-shadow:0 16px 36px rgba(0,0,0,0.3)}
.btn-ghost{
  background:transparent;color:#fff;border-color:rgba(255,255,255,0.6);
}
.btn-ghost:hover{background:rgba(255,255,255,0.12);color:#fff;border-color:#fff}

/* Footer */
.site-footer{
  background:#08060f;padding:70px 0 30px;
  border-top:1px solid var(--c-border);
}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--c-border);
}
.foot-brand p{color:var(--c-muted);font-size:14px;margin-top:16px;max-width:320px}
.foot-col h4{font-size:15px;margin-bottom:18px;color:#fff}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col ul li,.foot-col ul li a{color:var(--c-muted);font-size:14px}
.foot-col ul li a:hover{color:var(--c-primary)}
.foot-bottom{
  padding-top:26px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  color:var(--c-muted);font-size:13px;
}

/* Responsive */
@media (max-width:1024px){
  .genre-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:40px 24px}
  .flow-grid::before{display:none}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .nav-links{
    position:fixed;top:72px;right:0;bottom:0;
    width:min(320px,80vw);
    background:var(--c-bg-2);
    flex-direction:column;align-items:stretch;
    padding:24px;gap:6px;
    transform:translateX(100%);
    transition:transform .3s ease;
    border-left:1px solid var(--c-border);
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links a{padding:14px 16px}
  .nav-links .nav-cta{margin-left:0;margin-top:12px;text-align:center;justify-content:center}
  .burger{display:block}
  section{padding:60px 0}
  .cat-hero{padding:60px 0 70px}
  .scene-row{grid-template-columns:1fr;gap:32px}
  .scene-row.reverse .scene-img{order:0}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .genre-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr}
  .cat-hero h1{font-size:30px}
  .site-header .nav{height:64px}
  .nav-links{top:64px}
}

/* roulang page: article */
:root {
  --primary: #d946ef;
  --primary-dark: #a21caf;
  --secondary: #f97316;
  --bg: #0f0f0f;
  --bg-card: #1a1a1a;
  --bg-hover: #252525;
  --text: #f5f5f5;
  --text-dim: #a3a3a3;
  --border: #333;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(217, 70, 239, 0.15);
  --transition: all 0.3s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; height: auto; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.site-header {
  background: rgba(15, 15, 15, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 999;
}
.site-header .nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  transition: var(--transition);
}
.logo:hover { transform: translateY(-2px); color: var(--primary); }
.logo-mark {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 20px;
  font-weight: 800;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  color: var(--text-dim);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--primary);
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
}
.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff !important;
  padding: 10px 24px;
  border-radius: 30px;
  font-weight: 600;
  transition: var(--transition);
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(217, 70, 239, 0.4);
  color: #fff !important;
}
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.burger span, .burger span::before, .burger span::after {
  content: "";
  display: block;
  width: 26px;
  height: 3px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.article-hero {
  background: linear-gradient(135deg, rgba(217, 70, 239, 0.1), rgba(249, 115, 22, 0.05));
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--border);
}
.article-meta {
  display: flex;
  gap: 20px;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.meta-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(217, 70, 239, 0.15);
  color: var(--primary);
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid rgba(217, 70, 239, 0.3);
}
.meta-date {
  color: var(--text-dim);
  font-size: 15px;
}
.article-title {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.article-excerpt {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.8;
  max-width: 900px;
}
.article-main {
  padding: 60px 0;
}
.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  max-width: 1240px;
  margin: 0 auto;
}
.article-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  min-height: 400px;
}
.article-content h1, .article-content h2, .article-content h3 {
  margin-top: 32px;
  margin-bottom: 16px;
  font-weight: 700;
  line-height: 1.4;
}
.article-content h1 { font-size: 32px; }
.article-content h2 { font-size: 28px; }
.article-content h3 { font-size: 24px; }
.article-content p {
  margin-bottom: 20px;
  line-height: 1.9;
  font-size: 17px;
}
.article-content img {
  margin: 32px 0;
  border-radius: var(--radius);
  width: 100%;
}
.article-content ul, .article-content ol {
  margin: 20px 0;
  padding-left: 28px;
}
.article-content li {
  margin-bottom: 12px;
  line-height: 1.8;
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
}
.article-content a:hover {
  color: var(--secondary);
}
.article-content blockquote {
  border-left: 4px solid var(--primary);
  padding: 16px 24px;
  margin: 24px 0;
  background: rgba(217, 70, 239, 0.05);
  border-radius: 0 8px 8px 0;
  font-style: italic;
}
.not-found-box {
  text-align: center;
  padding: 80px 24px;
}
.not-found-box h2 {
  font-size: 28px;
  margin-bottom: 16px;
  color: var(--text-dim);
}
.not-found-box a {
  display: inline-block;
  margin-top: 24px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border-radius: 30px;
  font-weight: 600;
  transition: var(--transition);
}
.not-found-box a:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.article-sidebar {
  position: sticky;
  top: 92px;
  height: fit-content;
}
.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
}
.sidebar-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text);
}
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  margin-bottom: 8px;
  background: var(--bg);
  border-radius: 8px;
  color: var(--text);
  transition: var(--transition);
  font-size: 15px;
}
.sidebar-link:hover {
  background: var(--bg-hover);
  transform: translateX(4px);
  color: var(--primary);
}
.sidebar-link::before {
  content: "▸";
  color: var(--primary);
  font-weight: 700;
}
.cta-card {
  background: linear-gradient(135deg, rgba(217, 70, 239, 0.15), rgba(249, 115, 22, 0.1));
  border: 1px solid rgba(217, 70, 239, 0.3);
  text-align: center;
}
.cta-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}
.cta-card p {
  color: var(--text-dim);
  margin-bottom: 20px;
  font-size: 14px;
}
.cta-btn {
  display: block;
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border-radius: 30px;
  font-weight: 600;
  text-align: center;
  transition: var(--transition);
}
.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(217, 70, 239, 0.4);
  color: #fff;
}
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
  margin-top: 80px;
}
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}
.foot-brand .logo {
  margin-bottom: 16px;
}
.foot-brand p {
  color: var(--text-dim);
  line-height: 1.7;
  font-size: 15px;
}
.foot-col h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text);
}
.foot-col ul {
  list-style: none;
}
.foot-col li {
  margin-bottom: 12px;
}
.foot-col a {
  color: var(--text-dim);
  font-size: 14px;
  transition: var(--transition);
}
.foot-col a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.foot-bottom {
  border-top: 1px solid var(--border);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  color: var(--text-dim);
  font-size: 14px;
  flex-wrap: wrap;
  gap: 16px;
}
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
    max-width: 100%;
  }
  .foot-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .foot-brand {
    grid-column: span 2;
  }
}
@media (max-width: 768px) {
  .site-header .nav {
    height: 64px;
  }
  .burger {
    display: flex;
  }
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(15, 15, 15, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }
  .nav-links a.active::after {
    display: none;
  }
  .article-hero {
    padding: 48px 0 36px;
  }
  .article-title {
    font-size: 28px;
  }
  .article-excerpt {
    font-size: 16px;
  }
  .article-content {
    padding: 28px 20px;
  }
  .foot-grid {
    grid-template-columns: 1fr;
  }
  .foot-brand {
    grid-column: span 1;
  }
  .foot-bottom {
    flex-direction: column;
    text-align: center;
  }
}