/* roulang page: index */
:root{
  --c-bg:#0d0b14;
  --c-bg-2:#141222;
  --c-surface:#1b1830;
  --c-surface-2:#231f3d;
  --c-border:#2c274a;
  --c-primary:#ff2e6b;
  --c-primary-2:#ff6a3d;
  --c-accent:#7c5cff;
  --c-text:#f4f2fb;
  --c-text-dim:#a8a3c4;
  --c-text-mute:#6f6a8a;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-xl:32px;
  --sh-sm:0 4px 14px rgba(0,0,0,.25);
  --sh-md:0 12px 32px rgba(0,0,0,.35);
  --sh-glow:0 10px 40px rgba(255,46,107,.35);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:72px;
  --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);
  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}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea{font-family:inherit}
h1,h2,h3,h4{margin:0 0 var(--sp-2);font-weight:700;letter-spacing:.5px}
p{margin:0 0 var(--sp-2);color:var(--c-text-dim)}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 var(--sp-3)}

/* 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-border);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;letter-spacing:1px}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-glow);color:#fff;font-weight:900;
}
.brand-text{background:linear-gradient(90deg,#fff,#ffb8cf);-webkit-background-clip:text;background-clip:text;color:transparent}
.main-nav{display:flex;gap:6px;align-items:center}
.main-nav a{
  padding:10px 16px;border-radius:999px;
  font-size:14.5px;color:var(--c-text-dim);
  transition:all .25s ease;
}
.main-nav a:hover{color:#fff;background:var(--c-surface)}
.main-nav a.active{color:#fff;background:linear-gradient(135deg,var(--c-primary),var(--c-accent))}
.nav-cta{
  padding:10px 20px;border-radius:999px;font-size:14px;font-weight:600;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));
  color:#fff;box-shadow:var(--sh-sm);
}
.nav-cta:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--sh-glow)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;background:var(--c-surface);align-items:center;justify-content:center}
.menu-toggle span{width:18px;height:2px;background:#fff;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff}
.menu-toggle span::before{top:-6px}.menu-toggle span::after{top:6px}

/* Hero */
.hero{
  position:relative;padding:96px 0 88px;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(13,11,20,.55) 0%,rgba(13,11,20,.9) 90%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(1000px 500px at 15% 20%,rgba(255,46,107,.25),transparent 60%),
             radial-gradient(800px 400px at 85% 80%,rgba(124,92,255,.22),transparent 60%);
  pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:var(--sp-5);align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,46,107,.14);border:1px solid rgba(255,46,107,.4);
  color:#ffb8cf;font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 12px var(--c-primary)}
.hero h1{
  font-size:clamp(34px,4.6vw,58px);line-height:1.15;margin-bottom:20px;
  background:linear-gradient(120deg,#fff 20%,#ffb8cf 55%,#a48bff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:#c9c4e0;max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:12px;font-weight:600;font-size:15px;
  transition:all .25s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));color:#fff;box-shadow:var(--sh-glow)}
.btn-primary:hover{color:#fff;transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid var(--c-border);color:#fff}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.12)}
.hero-stats{display:flex;gap:var(--sp-4);margin-top:44px;flex-wrap:wrap}
.stat b{display:block;font-size:26px;color:#fff;font-weight:800}
.stat span{font-size:13px;color:var(--c-text-mute)}

.hero-visual{position:relative}
.hero-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-border);box-shadow:var(--sh-md);
  transform:rotate(-2deg);
}
.hero-card img{width:100%;height:420px;object-fit:cover}
.hero-card-tag{
  position:absolute;top:16px;left:16px;
  padding:6px 12px;border-radius:999px;
  background:rgba(0,0,0,.55);backdrop-filter:blur(6px);
  color:#fff;font-size:12px;font-weight:600;
}
.hero-card-info{
  position:absolute;left:0;right:0;bottom:0;padding:20px;
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.85));
}
.hero-card-info h4{font-size:18px;margin-bottom:6px;color:#fff}
.hero-card-info p{color:#d5d0e6;font-size:13px;margin:0}
.hero-float{
  position:absolute;top:-18px;right:-14px;
  padding:14px 18px;border-radius:14px;background:var(--c-surface);
  border:1px solid var(--c-border);box-shadow:var(--sh-md);
  display:flex;align-items:center;gap:10px;transform:rotate(4deg);
}
.hero-float .dot{width:10px;height:10px;border-radius:50%;background:#3ddc84;box-shadow:0 0 12px #3ddc84}
.hero-float small{display:block;color:var(--c-text-mute);font-size:11px}
.hero-float strong{font-size:14px;color:#fff}

/* Section base */
section{padding:var(--sp-6) 0;position:relative}
.section-head{text-align:center;max-width:720px;margin:0 auto var(--sp-5)}
.section-head .kicker{
  display:inline-block;padding:5px 14px;border-radius:999px;
  background:rgba(124,92,255,.14);border:1px solid rgba(124,92,255,.4);
  color:#c4b8ff;font-size:12px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{font-size:clamp(28px,3.4vw,42px);line-height:1.2}
.section-head p{font-size:16px}

/* Features grid */
.features{background:var(--c-bg-2)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-3)}
.feature-card{
  padding:32px 26px;border-radius:var(--r-md);
  background:linear-gradient(160deg,var(--c-surface),var(--c-surface-2));
  border:1px solid var(--c-border);
  transition:all .3s ease;position:relative;overflow:hidden;
}
.feature-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(255,46,107,.08),transparent 50%);
  opacity:0;transition:opacity .3s ease;
}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(255,46,107,.4);box-shadow:var(--sh-md)}
.feature-card:hover::after{opacity:1}
.feature-icon{
  width:52px;height:52px;border-radius:14px;margin-bottom:20px;
  background:linear-gradient(135deg,rgba(255,46,107,.2),rgba(124,92,255,.2));
  display:flex;align-items:center;justify-content:center;font-size:22px;
  border:1px solid var(--c-border);
}
.feature-card h3{font-size:18px;margin-bottom:10px}
.feature-card p{font-size:14px;margin:0}

/* Categories showcase */
.cats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-3)}
.cat-card{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--c-border);aspect-ratio:4/3;
  background:#000;transition:all .35s ease;
}
.cat-card img{width:100%;height:100%;object-fit:cover;opacity:.75;transition:all .5s ease}
.cat-card:hover img{transform:scale(1.06);opacity:.55}
.cat-card::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(13,11,20,.95));
  z-index:1;
}
.cat-body{position:absolute;left:0;right:0;bottom:0;padding:24px;z-index:2}
.cat-body .tag{
  display:inline-block;padding:4px 10px;border-radius:999px;
  background:rgba(255,46,107,.85);color:#fff;font-size:11px;font-weight:600;margin-bottom:10px;
}
.cat-body h3{font-size:22px;margin-bottom:6px;color:#fff}
.cat-body p{font-size:13px;color:#d9d4ec;margin:0 0 14px}
.cat-body .link{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#fff;font-weight:600}
.cat-body .link::after{content:"→";transition:transform .25s ease}
.cat-card:hover .cat-body .link::after{transform:translateX(4px)}

/* Latest list */
.latest{background:var(--c-bg-2)}
.latest-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-3)}
.post-item{
  display:flex;gap:20px;padding:20px;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-md);transition:all .25s ease;
}
.post-item:hover{border-color:rgba(255,46,107,.4);transform:translateY(-3px);box-shadow:var(--sh-sm)}
.post-thumb{
  flex-shrink:0;width:120px;height:120px;border-radius:10px;overflow:hidden;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:32px;font-weight:800;
}
.post-body{flex:1;min-width:0}
.post-meta{display:flex;gap:12px;font-size:12px;color:var(--c-text-mute);margin-bottom:8px}
.post-meta .cat{color:var(--c-primary);font-weight:600}
.post-body h3{font-size:17px;line-height:1.4;margin-bottom:8px}
.post-body h3 a:hover{color:var(--c-primary)}
.post-body p{font-size:13.5px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-note{padding:40px;text-align:center;background:var(--c-surface);border:1px dashed var(--c-border);border-radius:var(--r-md);color:var(--c-text-mute)}

/* How it works */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-3);position:relative}
.step{
  padding:28px 24px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-border);position:relative;
}
.step-num{
  position:absolute;top:-18px;left:24px;
  width:44px;height:44px;border-radius:12px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  display:flex;align-items:center;justify-content:center;
  font-weight:800;color:#fff;font-size:18px;box-shadow:var(--sh-sm);
}
.step h4{font-size:17px;margin:16px 0 8px}
.step p{font-size:14px;margin:0}

/* Highlight banner */
.highlight{
  position:relative;padding:80px 0;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(13,11,20,.85),rgba(13,11,20,.5)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.highlight-inner{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-5);align-items:center;position:relative}
.highlight h2{font-size:clamp(26px,3vw,38px);line-height:1.2;color:#fff}
.highlight ul{list-style:none;padding:0;margin:24px 0 0}
.highlight li{
  padding:12px 0 12px 32px;position:relative;
  border-bottom:1px dashed rgba(255,255,255,.12);color:#e6e1f5;
}
.highlight li::before{
  content:"✓";position:absolute;left:0;top:12px;
  width:22px;height:22px;border-radius:50%;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));
  color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center;
}
.highlight-visual img{border-radius:var(--r-lg);box-shadow:var(--sh-md);width:100%;height:420px;object-fit:cover}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;
}
.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::after{content:"+";font-size:22px;color:var(--c-primary);transition:transform .25s ease}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 24px}
.faq-item.open .faq-a{max-height:400px;padding-bottom:20px}
.faq-a p{font-size:14.5px;margin:0}

/* CTA */
.cta{
  padding:80px 0;
  background:linear-gradient(120deg,#1a1230,#2a1440 50%,#3a0f2a);
  border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);
  text-align:center;
}
.cta h2{font-size:clamp(28px,3.5vw,42px);color:#fff}
.cta p{max-width:600px;margin:0 auto 28px;font-size:16px}
.cta .btn{margin:0 6px}

/* Footer */
.site-footer{background:#08070f;padding:64px 0 24px;border-top:1px solid var(--c-border)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:var(--sp-4);margin-bottom:var(--sp-4)}
.footer-col h5{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:1px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px;font-size:13.5px;color:var(--c-text-mute)}
.footer-col a{color:var(--c-text-dim)}
.footer-col a:hover{color:var(--c-primary)}
.footer-brand p{font-size:13.5px;max-width:320px}
.footer-bottom{
  padding-top:24px;border-top:1px solid var(--c-border);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:12.5px;color:var(--c-text-mute);
}

/* Responsive */
@media (max-width:1024px){
  .feature-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .cats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-inner,.highlight-inner{grid-template-columns:1fr;gap:var(--sp-4)}
  .hero-visual{max-width:480px}
}
@media (max-width:768px){
  .main-nav{display:none;position:absolute;top:72px;left:0;right:0;flex-direction:column;gap:0;background:var(--c-bg-2);border-bottom:1px solid var(--c-border);padding:12px 20px}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 14px;border-radius:8px;width:100%}
  .menu-toggle{display:flex}
  .nav-cta{display:none}
  .latest-grid{grid-template-columns:1fr}
  .post-thumb{width:96px;height:96px;font-size:26px}
  section{padding:var(--sp-5) 0}
  .hero{padding:64px 0 56px}
}
@media (max-width:520px){
  .feature-grid,.steps,.cats-grid,.footer-grid{grid-template-columns:1fr}
  .hero-stats{gap:var(--sp-3)}
  .post-item{flex-direction:column}
  .post-thumb{width:100%;height:160px}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* roulang page: category1 */
:root{
  --c-bg:#0d0f14;
  --c-bg-2:#141821;
  --c-surface:#1a1f2c;
  --c-surface-2:#222838;
  --c-border:#2a3142;
  --c-text:#e9ecf3;
  --c-muted:#9aa2b4;
  --c-primary:#ff4d6d;
  --c-primary-2:#ff8a5b;
  --c-accent:#5b8cff;
  --c-gold:#f3c15a;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:22px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --shadow-sm:0 4px 14px rgba(0,0,0,.25);
  --grad:linear-gradient(135deg,#ff4d6d 0%,#ff8a5b 100%);
  --grad-2:linear-gradient(135deg,#5b8cff 0%,#8b5bff 100%);
  --container:1200px;
  --tr:.25s ease;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.65;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul{list-style:none;padding:0;margin:0}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3}
p{margin:0}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(13,15,20,.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-border);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--c-text)}
.brand-mark{
  width:38px;height:38px;border-radius:10px;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:20px;font-weight:900;
  box-shadow:0 6px 18px rgba(255,77,109,.35);
}
.main-nav{display:flex;gap:6px;flex:1;justify-content:center}
.main-nav a{
  padding:8px 16px;border-radius:999px;font-size:14.5px;
  color:var(--c-muted);font-weight:500;
  transition:all var(--tr);
}
.main-nav a:hover{color:var(--c-text);background:var(--c-surface)}
.main-nav a.active{color:#fff;background:var(--grad);box-shadow:0 4px 14px rgba(255,77,109,.35)}
.nav-cta{
  padding:9px 20px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-border);
  color:var(--c-text);font-weight:600;font-size:14px;
  transition:all var(--tr);
}
.nav-cta:hover{background:var(--grad);border-color:transparent;color:#fff}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;background:var(--c-surface);position:relative}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{
  content:'';position:absolute;left:10px;width:20px;height:2px;background:var(--c-text);border-radius:2px;transition:var(--tr);
}
.menu-toggle span{top:19px}
.menu-toggle span::before{top:-7px}
.menu-toggle span::after{top:7px}

/* Page Hero */
.page-hero{
  position:relative;
  padding:80px 0 60px;
  overflow:hidden;
  background:
    linear-gradient(180deg,rgba(13,15,20,.4) 0%,rgba(13,15,20,.95) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(circle at 20% 30%,rgba(255,77,109,.25) 0%,transparent 50%),
             radial-gradient(circle at 80% 70%,rgba(91,140,255,.2) 0%,transparent 50%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.breadcrumb{display:flex;gap:8px;color:var(--c-muted);font-size:14px;margin-bottom:22px}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb span{color:var(--c-text)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,77,109,.15);border:1px solid rgba(255,77,109,.35);
  color:#ffb0bd;font-size:13px;font-weight:500;margin-bottom:20px;
}
.hero-tag::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--c-primary);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);
  margin-bottom:20px;
  letter-spacing:-.5px;
}
.page-hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;color:#cfd4e2;margin-bottom:28px;max-width:680px}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:32px}
.hero-stats .item{display:flex;flex-direction:column}
.hero-stats .num{font-size:28px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats .lbl{font-size:13px;color:var(--c-muted);margin-top:2px}

/* Section base */
section{padding:70px 0}
.sec-head{text-align:center;max-width:720px;margin:0 auto 44px}
.sec-tag{
  display:inline-block;padding:4px 12px;border-radius:6px;
  background:rgba(91,140,255,.15);color:#a3bcff;
  font-size:12.5px;font-weight:600;letter-spacing:.5px;
  margin-bottom:14px;
}
.sec-head h2{font-size:clamp(24px,3.2vw,36px);margin-bottom:14px}
.sec-head p{color:var(--c-muted);font-size:15.5px}
.sec-head.left{text-align:left;margin-left:0}

/* Ranking board */
.rank-wrap{
  display:grid;grid-template-columns:2fr 1fr;gap:28px;
}
.rank-main{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.rank-tabs{
  display:flex;border-bottom:1px solid var(--c-border);
  overflow-x:auto;
}
.rank-tabs button{
  padding:16px 22px;font-size:14.5px;font-weight:600;color:var(--c-muted);
  border-bottom:2px solid transparent;white-space:nowrap;transition:var(--tr);
}
.rank-tabs button.on{color:var(--c-text);border-color:var(--c-primary)}
.rank-tabs button:hover{color:var(--c-text)}
.rank-list{padding:14px 0}
.rank-item{
  display:flex;align-items:center;gap:16px;
  padding:12px 22px;transition:var(--tr);
  border-bottom:1px solid rgba(42,49,66,.5);
}
.rank-item:last-child{border-bottom:none}
.rank-item:hover{background:var(--c-surface-2)}
.rank-num{
  width:32px;height:32px;border-radius:8px;
  background:var(--c-surface-2);color:var(--c-muted);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;flex-shrink:0;
}
.rank-item:nth-child(1) .rank-num{background:var(--grad);color:#fff}
.rank-item:nth-child(2) .rank-num{background:linear-gradient(135deg,#ff8a5b,#f3c15a);color:#fff}
.rank-item:nth-child(3) .rank-num{background:linear-gradient(135deg,#f3c15a,#a3bcff);color:#fff}
.rank-info{flex:1;min-width:0}
.rank-title{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-meta{font-size:12.5px;color:var(--c-muted);display:flex;gap:12px}
.rank-meta span::before{content:'· '}
.rank-meta span:first-child::before{content:''}
.rank-score{font-size:16px;font-weight:800;color:var(--c-gold);flex-shrink:0}

.rank-side{display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius);
  padding:22px;
}
.side-card h4{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h4::before{content:'';width:4px;height:16px;background:var(--grad);border-radius:2px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{
  padding:6px 12px;border-radius:8px;
  background:var(--c-surface-2);color:#cfd4e2;
  font-size:13px;transition:var(--tr);
}
.tag-cloud a:hover{background:var(--grad);color:#fff}

/* Cards grid */
.cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:var(--tr);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:var(--c-primary);box-shadow:var(--shadow)}
.card-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-cover img{transform:scale(1.08)}
.card-badge{
  position:absolute;top:10px;left:10px;
  padding:4px 10px;border-radius:6px;
  background:rgba(255,77,109,.9);color:#fff;
  font-size:12px;font-weight:600;
  backdrop-filter:blur(6px);
}
.card-quality{
  position:absolute;top:10px;right:10px;
  padding:3px 8px;border-radius:4px;
  background:rgba(0,0,0,.6);color:#fff;
  font-size:11px;font-weight:700;letter-spacing:.5px;
  border:1px solid rgba(255,255,255,.2);
}
.card-play{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.35);opacity:0;transition:var(--tr);
}
.card:hover .card-play{opacity:1}
.card-play::after{
  content:'▶';color:#fff;font-size:22px;
  width:56px;height:56px;border-radius:50%;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  padding-left:4px;
  box-shadow:0 10px 30px rgba(255,77,109,.5);
}
.card-body{padding:16px;flex:1;display:flex;flex-direction:column}
.card-title{font-size:15px;font-weight:600;margin-bottom:8px;line-height:1.4}
.card-meta{font-size:12.5px;color:var(--c-muted);display:flex;gap:10px;margin-bottom:10px}
.card-desc{font-size:13.5px;color:#b8bfd0;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:12px;padding-top:12px;border-top:1px solid var(--c-border)}
.card-score{color:var(--c-gold);font-weight:700;font-size:14px}
.card-plays{font-size:12px;color:var(--c-muted)}

/* Featured banner */
.featured{
  background:var(--c-bg-2);
  padding:70px 0;
}
.featured-wrap{
  display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center;
}
.featured-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  aspect-ratio:16/10;
  box-shadow:var(--shadow);
}
.featured-media img{width:100%;height:100%;object-fit:cover}
.featured-media::after{
  content:'▶';
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:80px;height:80px;border-radius:50%;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:28px;padding-left:6px;
  box-shadow:0 20px 50px rgba(255,77,109,.5);
  cursor:pointer;transition:var(--tr);
}
.featured-media:hover::after{transform:translate(-50%,-50%) scale(1.1)}
.featured-info h3{font-size:clamp(24px,3vw,34px);margin-bottom:16px}
.featured-info p{color:#cfd4e2;margin-bottom:20px;font-size:15.5px}
.featured-attrs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.attr{
  padding:6px 12px;border-radius:8px;
  background:var(--c-surface);border:1px solid var(--c-border);
  font-size:13px;color:#cfd4e2;
}
.attr strong{color:var(--c-gold)}
.btn-group{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:10px;
  font-size:14.5px;font-weight:600;
  transition:var(--tr);cursor:pointer;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 18px rgba(255,77,109,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(255,77,109,.5);color:#fff}
.btn-ghost{background:transparent;color:var(--c-text);border:1px solid var(--c-border)}
.btn-ghost:hover{background:var(--c-surface);border-color:var(--c-primary)}

/* Feature row */
.features{background:var(--c-bg)}
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat{
  padding:26px 22px;border-radius:var(--radius);
  background:var(--c-surface);border:1px solid var(--c-border);
  transition:var(--tr);
}
.feat:hover{border-color:var(--c-primary);transform:translateY(-3px)}
.feat-ico{
  width:48px;height:48px;border-radius:12px;
  background:rgba(255,77,109,.12);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;margin-bottom:16px;
}
.feat h4{font-size:16.5px;margin-bottom:8px}
.feat p{font-size:13.8px;color:var(--c-muted)}

/* Genre strip */
.genre-strip{background:var(--c-bg-2)}
.genre-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.genre{
  aspect-ratio:1;border-radius:var(--radius);
  background:var(--c-surface);border:1px solid var(--c-border);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:6px;transition:var(--tr);text-align:center;padding:12px;
}
.genre:hover{background:var(--grad);border-color:transparent;color:#fff;transform:translateY(-3px)}
.genre-ico{font-size:26px}
.genre-name{font-size:14px;font-weight:600}
.genre-count{font-size:12px;color:var(--c-muted)}
.genre:hover .genre-count{color:rgba(255,255,255,.85)}

/* FAQ */
.faq{background:var(--c-bg)}
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius);overflow:hidden;transition:var(--tr);
}
.faq-item:hover{border-color:var(--c-primary)}
.faq-q{
  padding:20px 24px;font-size:15.5px;font-weight:600;
  display:flex;justify-content:space-between;align-items:center;
  cursor:pointer;
}
.faq-q::after{
  content:'+';font-size:22px;color:var(--c-primary);
  transition:transform var(--tr);
}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{
  padding:0 24px;max-height:0;overflow:hidden;
  color:#cfd4e2;font-size:14.5px;
  transition:max-height .35s ease,padding .35s ease;
}
.faq-item.open .faq-a{padding:0 24px 20px;max-height:400px}

/* CTA */
.cta{
  position:relative;
  padding:80px 0;
  background:
    linear-gradient(120deg,rgba(255,77,109,.85),rgba(91,140,255,.75)),
    url('/assets/images/backpic/back-2.webp') center/cover;
  text-align:center;
}
.cta h2{font-size:clamp(26px,3.4vw,38px);color:#fff;margin-bottom:14px}
.cta p{color:rgba(255,255,255,.9);font-size:16px;max-width:560px;margin:0 auto 26px}
.cta .btn-primary{background:#fff;color:#ff4d6d;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.cta .btn-primary:hover{color:#ff4d6d}
.cta .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.cta .btn-ghost:hover{background:rgba(255,255,255,.15)}

/* Footer */
.site-footer{background:#0a0c11;border-top:1px solid var(--c-border);padding:60px 0 30px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-col h5{font-size:15px;margin-bottom:16px;color:var(--c-text)}
.footer-col p{color:var(--c-muted);font-size:13.5px;line-height:1.7}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:var(--c-muted);font-size:13.5px}
.footer-col ul a:hover{color:var(--c-primary)}
.footer-bottom{
  border-top:1px solid var(--c-border);padding-top:24px;
  display:flex;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--c-muted);
}

/* Responsive */
@media(max-width:1024px){
  .cards-grid{grid-template-columns:repeat(3,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .genre-grid{grid-template-columns:repeat(4,1fr)}
  .rank-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  section{padding:50px 0}
  .page-hero{padding:60px 0 45px}
  .main-nav{
    position:fixed;top:70px;left:0;right:0;
    background:var(--c-bg-2);border-bottom:1px solid var(--c-border);
    flex-direction:column;padding:16px;gap:4px;
    transform:translateY(-120%);transition:transform var(--tr);
  }
  .main-nav.on{transform:translateY(0)}
  .main-nav a{padding:12px 16px}
  .menu-toggle{display:block}
  .nav-cta{display:none}
  .cards-grid{grid-template-columns:repeat(2,1fr)}
  .featured-wrap{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:10px}
  .hero-stats{gap:20px}
}
@media(max-width:520px){
  .cards-grid{grid-template-columns:1fr}
  .feat-grid{grid-template-columns:1fr}
  .genre-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .rank-item{padding:12px 16px}
  .rank-tabs button{padding:14px 16px;font-size:13.5px}
}

/* roulang page: article */
:root{
  --c-bg:#0b0d17;
  --c-bg-2:#12162a;
  --c-surface:#1a1f38;
  --c-surface-2:#232948;
  --c-border:rgba(255,255,255,.08);
  --c-border-2:rgba(255,255,255,.14);
  --c-text:#eef1ff;
  --c-muted:#a4a9c4;
  --c-dim:#7a80a0;
  --c-primary:#ff3b6b;
  --c-primary-2:#ff7a3d;
  --c-accent:#7c5cff;
  --c-success:#26d07c;
  --grad-hero:linear-gradient(135deg,#ff3b6b 0%,#ff7a3d 55%,#ffb547 100%);
  --grad-card:linear-gradient(160deg,rgba(255,59,107,.18),rgba(124,92,255,.14));
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --sh-1:0 6px 20px rgba(0,0,0,.28);
  --sh-2:0 18px 50px rgba(0,0,0,.4);
  --sp:20px;
  --sp-lg:64px;
  --f-sans:"Helvetica Neue","PingFang SC","Microsoft YaHei","Hiragino Sans GB",Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--f-sans);
  color:var(--c-text);
  background:radial-gradient(1200px 700px at 15% -10%,rgba(124,92,255,.22),transparent 60%),
             radial-gradient(1000px 600px at 90% 0%,rgba(255,59,107,.18),transparent 60%),
             var(--c-bg);
  line-height:1.7;
  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}
ul{list-style:none;padding:0;margin:0}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,13,23,.82);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--c-border);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.5px}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-hero);
  display:grid;place-items:center;color:#fff;font-weight:900;
  box-shadow:0 8px 22px rgba(255,59,107,.35);
}
.brand-text{font-size:18px;color:#fff}
.main-nav{display:flex;gap:6px;margin-left:auto}
.main-nav a{
  padding:10px 14px;border-radius:10px;font-size:14.5px;color:#cfd3ee;
  transition:background .2s ease,color .2s ease;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.main-nav a.active{color:#fff;background:linear-gradient(135deg,rgba(255,59,107,.28),rgba(124,92,255,.28))}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 18px;border-radius:999px;
  background:var(--grad-hero);color:#fff;font-weight:700;font-size:14px;
  box-shadow:0 10px 24px rgba(255,59,107,.35);
}
.nav-cta:hover{color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.06);position:relative}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:10px;right:10px;height:2px;background:#fff;border-radius:2px;
}
.menu-toggle span{top:50%;transform:translateY(-50%)}
.menu-toggle span::before{top:-7px}
.menu-toggle span::after{top:7px}

/* Article banner */
.article-banner{
  position:relative;overflow:hidden;
  padding:88px 0 56px;
  background:
    linear-gradient(180deg,rgba(11,13,23,.55) 0%,rgba(11,13,23,.9) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.article-banner::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 300px at 20% 20%,rgba(124,92,255,.35),transparent 60%),
             radial-gradient(500px 300px at 90% 30%,rgba(255,59,107,.3),transparent 60%);
  pointer-events:none;
}
.crumb{
  position:relative;display:flex;flex-wrap:wrap;gap:6px;align-items:center;
  font-size:13px;color:var(--c-muted);margin-bottom:22px;
}
.crumb a:hover{color:#fff}
.crumb .sep{color:var(--c-dim)}
.article-head{position:relative;max-width:900px}
.article-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,59,107,.18);color:#ffc4d1;border:1px solid rgba(255,59,107,.35);
  margin-bottom:18px;
}
.article-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
.article-title{
  font-size:clamp(28px,4vw,44px);
  line-height:1.25;margin:0 0 22px;font-weight:800;letter-spacing:.5px;color:#fff;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:22px;align-items:center;color:var(--c-muted);font-size:14px;
}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-dim)}
.article-meta strong{color:#fff;font-weight:600}

/* Main layout */
.article-main{padding:56px 0 72px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;
}
.article-body{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-lg);
  padding:44px 48px;
  box-shadow:var(--sh-1);
}
.article-content{color:#dfe3f8;font-size:16.5px;line-height:1.9}
.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4{
  color:#fff;line-height:1.35;margin:32px 0 14px;font-weight:800;
}
.article-content h2{
  font-size:24px;padding-left:14px;border-left:4px solid var(--c-primary);
}
.article-content h3{font-size:20px}
.article-content p{margin:0 0 18px}
.article-content a{color:#ffb0c1;border-bottom:1px dashed rgba(255,176,193,.4)}
.article-content a:hover{color:var(--c-primary)}
.article-content ul,
.article-content ol{padding-left:22px;margin:0 0 18px}
.article-content ul li,
.article-content ol li{margin:8px 0}
.article-content blockquote{
  margin:22px 0;padding:16px 20px;
  background:rgba(255,255,255,.04);border-left:4px solid var(--c-accent);
  border-radius:10px;color:#d6daf5;
}
.article-content img{border-radius:12px;margin:22px 0}
.article-content code{
  background:rgba(255,255,255,.08);padding:2px 6px;border-radius:6px;
  font-size:14px;color:#ffd0dc;
}
.article-content pre{
  background:#0f1226;border:1px solid var(--c-border);
  border-radius:12px;padding:18px;overflow:auto;margin:22px 0;
}
.empty-state{text-align:center;padding:60px 20px}
.empty-state h2{font-size:22px;margin:0 0 12px;color:#fff}
.empty-state p{color:var(--c-muted);margin:0 0 22px}

.share-row{
  margin-top:36px;padding-top:24px;border-top:1px solid var(--c-border);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.share-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag-chip{
  padding:6px 12px;border-radius:999px;font-size:12.5px;
  background:rgba(124,92,255,.14);color:#c9bfff;border:1px solid rgba(124,92,255,.3);
}
.share-btns{display:flex;gap:10px}
.share-btns a{
  width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.06);border:1px solid var(--c-border);
  display:grid;place-items:center;font-size:14px;color:#fff;
}
.share-btns a:hover{background:var(--grad-hero);border-color:transparent;transform:translateY(-2px)}

/* Sidebar */
.article-side{display:flex;flex-direction:column;gap:24px}
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-lg);
  padding:24px;
}
.side-card h4{
  margin:0 0 18px;font-size:16px;color:#fff;font-weight:700;
  display:flex;align-items:center;gap:10px;
}
.side-card h4::before{
  content:"";width:4px;height:16px;border-radius:2px;background:var(--grad-hero);
}
.hot-list{display:flex;flex-direction:column;gap:14px}
.hot-item{display:flex;gap:12px;align-items:flex-start}
.hot-num{
  flex:0 0 28px;height:28px;border-radius:8px;
  display:grid;place-items:center;font-weight:800;font-size:13px;
  background:rgba(255,255,255,.06);color:var(--c-muted);
}
.hot-item:nth-child(1) .hot-num{background:var(--grad-hero);color:#fff}
.hot-item:nth-child(2) .hot-num{background:linear-gradient(135deg,#ff7a3d,#ffb547);color:#fff}
.hot-item:nth-child(3) .hot-num{background:linear-gradient(135deg,#7c5cff,#4da5ff);color:#fff}
.hot-title{font-size:14px;line-height:1.5;color:#e6e8fb}
.hot-title:hover{color:var(--c-primary)}
.hot-meta{font-size:12px;color:var(--c-dim);margin-top:4px}

.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags a{
  padding:6px 12px;font-size:12.5px;border-radius:8px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-border);color:#cfd3ee;
}
.side-tags a:hover{background:var(--grad-hero);border-color:transparent;color:#fff}

.side-cta{
  background:var(--grad-card);
  border:1px solid var(--c-border-2);
  border-radius:var(--r-lg);
  padding:26px;text-align:center;
}
.side-cta h4{justify-content:center}
.side-cta h4::before{display:none}
.side-cta p{color:var(--c-muted);font-size:13.5px;margin:0 0 18px}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-weight:700;
  background:var(--grad-hero);color:#fff;font-size:14px;box-shadow:0 12px 28px rgba(255,59,107,.35);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,59,107,.45)}

.side-cover{border-radius:12px;overflow:hidden;margin-bottom:14px;position:relative}
.side-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.side-cover:hover img{transform:scale(1.06)}

/* Related section */
.related-section{padding:24px 0 72px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;
}
.section-title{
  font-size:26px;color:#fff;font-weight:800;margin:0;
  display:flex;align-items:center;gap:12px;
}
.section-title::before{
  content:"";width:5px;height:24px;border-radius:3px;background:var(--grad-hero);
}
.section-more{
  font-size:14px;color:var(--c-muted);display:inline-flex;align-items:center;gap:6px;
}
.section-more:hover{color:#fff}

.related-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.rel-card{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-md);overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-border-2)}
.rel-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rel-card:hover .rel-cover img{transform:scale(1.08)}
.rel-badge{
  position:absolute;top:10px;left:10px;
  padding:4px 10px;border-radius:6px;font-size:11.5px;font-weight:700;
  background:rgba(0,0,0,.55);color:#fff;backdrop-filter:blur(6px);
}
.rel-duration{
  position:absolute;bottom:10px;right:10px;
  padding:3px 8px;border-radius:5px;font-size:11.5px;
  background:rgba(0,0,0,.7);color:#fff;
}
.rel-body{padding:16px 18px}
.rel-title{
  font-size:15px;line-height:1.5;color:#fff;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin:0 0 10px;min-height:45px;
}
.rel-card:hover .rel-title{color:var(--c-primary)}
.rel-meta{display:flex;justify-content:space-between;color:var(--c-dim);font-size:12.5px}

/* FAQ */
.faq-section{padding:24px 0 72px}
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-md);padding:22px 26px;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:var(--c-border-2)}
.faq-item summary{
  cursor:pointer;font-weight:700;color:#fff;font-size:16px;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;color:var(--c-primary);transition:transform .3s ease;
  font-weight:400;line-height:1;
}
.faq-item[open] summary::after{content:"–"}
.faq-item p{margin:14px 0 0;color:var(--c-muted);line-height:1.8;font-size:14.5px}

/* CTA banner */
.cta-banner{
  margin:20px 0 72px;padding:60px 40px;
  border-radius:var(--r-xl);position:relative;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(11,13,23,.6),rgba(11,13,23,.3)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border:1px solid var(--c-border-2);
  text-align:center;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(500px 260px at 50% 100%,rgba(255,59,107,.35),transparent 60%);
  pointer-events:none;
}
.cta-banner h3{
  position:relative;font-size:clamp(24px,3vw,34px);margin:0 0 12px;color:#fff;font-weight:800;
}
.cta-banner p{position:relative;color:#cfd3ee;margin:0 0 26px;font-size:15.5px}
.cta-actions{position:relative;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn-outline{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-weight:700;font-size:14px;
  border:1px solid rgba(255,255,255,.25);color:#fff;background:rgba(255,255,255,.05);
  transition:all .2s ease;
}
.btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}

/* Footer */
.site-footer{
  background:linear-gradient(180deg,#0a0c17 0%,#080a13 100%);
  border-top:1px solid var(--c-border);
  padding:60px 0 24px;color:var(--c-muted);font-size:14px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--c-border);
}
.footer-brand p{margin:0;color:var(--c-muted);line-height:1.8;font-size:13.5px}
.footer-col h5{color:#fff;font-size:15px;margin:0 0 18px;font-weight:700}
.footer-col ul li{margin:10px 0}
.footer-col a{color:var(--c-muted);font-size:13.5px}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:24px;font-size:13px;color:var(--c-dim);flex-wrap:wrap;gap:10px;
}

/* Responsive */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:32px}
  .related-grid{grid-template-columns:repeat(3,1fr)}
  .article-body{padding:36px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .nav-cta{display:none}
  .menu-toggle{display:grid;place-items:center;margin-left:auto}
  .main-nav{
    position:fixed;top:72px;left:0;right:0;
    flex-direction:column;gap:0;
    background:rgba(11,13,23,.98);backdrop-filter:blur(14px);
    padding:16px 24px;border-bottom:1px solid var(--c-border);
    transform:translateY(-120%);transition:transform .3s ease;
    max-height:calc(100vh - 72px);overflow:auto;
  }
  .main-nav.open{transform:translateY(0)}
  .main-nav a{padding:14px 12px;border-radius:8px}
  .article-banner{padding:56px 0 40px}
  .article-body{padding:28px 22px}
  .article-content{font-size:15.5px}
  .article-content h2{font-size:20px}
  .related-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .cta-banner{padding:44px 22px}
  .section-title{font-size:22px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .nav-wrap{height:64px;gap:12px}
  .brand-text{font-size:16px}
  .article-banner{padding:44px 0 32px}
  .article-meta{gap:12px;font-size:13px}
  .article-body{padding:24px 18px}
  .share-row{flex-direction:column;align-items:flex-start}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --c-bg:#0b0d14;
  --c-surface:#12151f;
  --c-surface-2:#181c2a;
  --c-line:#242a3d;
  --c-text:#eef1f8;
  --c-muted:#9aa3b8;
  --c-brand:#ff5a7a;
  --c-brand-2:#ffb454;
  --c-accent:#5b8cff;
  --c-ok:#3ddc97;
  --grad:linear-gradient(135deg,#ff5a7a 0%,#ffb454 100%);
  --grad-2:linear-gradient(135deg,#5b8cff 0%,#ff5a7a 100%);
  --r-sm:8px;--r-md:14px;--r-lg:22px;--r-xl:32px;
  --sh-sm:0 2px 6px rgba(0,0,0,.25);
  --sh-md:0 12px 32px rgba(0,0,0,.35);
  --sh-lg:0 24px 60px rgba(0,0,0,.45);
  --sp:16px;
}
*,*::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 .2s ease}
a:hover{color:var(--c-brand-2)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:.5px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 22px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,13,20,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:19px;font-weight:800;
  box-shadow:0 6px 18px rgba(255,90,122,.4);
}
.brand-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.main-nav{display:flex;gap:6px;align-items:center}
.main-nav a{
  padding:9px 15px;border-radius:10px;
  font-size:15px;color:var(--c-muted);
  transition:all .2s;
  position:relative;
}
.main-nav a:hover{color:var(--c-text);background:var(--c-surface-2)}
.main-nav a.active{color:var(--c-text);background:var(--c-surface-2)}
.main-nav a.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:4px;height:2px;
  background:var(--grad);border-radius:2px;
}
.nav-cta{
  padding:10px 20px;border-radius:999px;
  background:var(--grad);color:#fff;font-weight:600;font-size:14px;
  box-shadow:0 8px 22px rgba(255,90,122,.35);
  transition:transform .2s,box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-2px);color:#fff;box-shadow:0 12px 28px rgba(255,90,122,.5)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;background:var(--c-surface-2);position:relative}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{
  position:absolute;left:50%;top:50%;width:20px;height:2px;background:var(--c-text);
  transform:translate(-50%,-50%);content:"";display:block;
}
.menu-toggle span::before{top:-7px;left:0;transform:none}
.menu-toggle span::after{top:7px;left:0;transform:none}

/* Category Hero */
.cat-hero{
  position:relative;
  padding:80px 0 90px;
  overflow:hidden;
  background:
    linear-gradient(180deg,rgba(11,13,20,.55) 0%,rgba(11,13,20,.92) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 20% 30%,rgba(255,90,122,.28),transparent 55%),
             radial-gradient(circle at 80% 70%,rgba(91,140,255,.22),transparent 55%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr 1fr;gap:60px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(255,90,122,.14);border:1px solid rgba(255,90,122,.35);
  color:#ffc4d0;font-size:13px;margin-bottom:22px;
}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--c-brand);box-shadow:0 0 12px var(--c-brand)}
.cat-hero h1{font-size:52px;line-height:1.15;margin-bottom:22px}
.cat-hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.cat-hero p.lead{font-size:17px;color:var(--c-muted);margin-bottom:28px;max-width:560px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:12px;font-weight:600;font-size:15px;
  transition:transform .2s,box-shadow .2s,background .2s;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(255,90,122,.4)}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 16px 34px rgba(255,90,122,.55)}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--c-text);border:1px solid var(--c-line)}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:var(--c-text)}
.hero-meta{display:flex;gap:32px;flex-wrap:wrap}
.hero-meta div{display:flex;flex-direction:column}
.hero-meta strong{font-size:26px;color:var(--c-text);font-weight:800}
.hero-meta span{font-size:13px;color:var(--c-muted)}

.hero-clock{
  position:relative;
  background:linear-gradient(160deg,#1a2038 0%,#0f1220 100%);
  border:1px solid var(--c-line);
  border-radius:var(--r-xl);
  padding:32px;
  box-shadow:var(--sh-lg);
}
.hero-clock h3{font-size:15px;color:var(--c-muted);font-weight:500;margin-bottom:6px}
.hero-clock .date-big{font-size:38px;font-weight:800;letter-spacing:1px;margin-bottom:6px}
.hero-clock .week{color:var(--c-brand-2);font-size:14px;margin-bottom:22px}
.clock-list{display:grid;gap:10px}
.clock-item{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.03);border:1px solid var(--c-line);
  font-size:14px;
}
.clock-item .t{font-family:"SF Mono",Consolas,monospace;color:var(--c-brand-2);font-weight:700;font-size:15px}
.clock-item .n{color:var(--c-text)}
.clock-item .s{
  padding:3px 10px;border-radius:999px;font-size:12px;
  background:rgba(61,220,151,.15);color:var(--c-ok);border:1px solid rgba(61,220,151,.3);
}
.clock-item.done .s{background:rgba(154,163,184,.14);color:var(--c-muted);border-color:var(--c-line)}
.clock-item.now .s{background:var(--grad);color:#fff;border:0}

/* Sections */
section{padding:80px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px}
.section-head .tag{
  display:inline-block;padding:6px 14px;border-radius:999px;
  background:rgba(91,140,255,.14);color:#a9c1ff;border:1px solid rgba(91,140,255,.3);
  font-size:12px;margin-bottom:14px;letter-spacing:1px;
}
.section-head h2{font-size:38px;line-height:1.25;margin-bottom:14px}
.section-head p{color:var(--c-muted);font-size:16px}

/* Update timeline */
.timeline{position:relative;padding-left:40px}
.timeline::before{
  content:"";position:absolute;left:14px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--c-brand),transparent);
}
.tl-day{position:relative;margin-bottom:44px}
.tl-day::before{
  content:"";position:absolute;left:-33px;top:8px;
  width:28px;height:28px;border-radius:50%;
  background:var(--grad);border:4px solid var(--c-bg);
  box-shadow:0 0 0 2px rgba(255,90,122,.3);
}
.tl-date{
  display:inline-flex;align-items:baseline;gap:10px;margin-bottom:18px;
}
.tl-date .d{font-size:24px;font-weight:800}
.tl-date .w{font-size:13px;color:var(--c-muted);padding:3px 10px;border-radius:999px;background:var(--c-surface-2)}
.tl-date .c{font-size:13px;color:var(--c-brand-2)}
.tl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(255,90,122,.4);box-shadow:var(--sh-md)}
.tl-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.tl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.tl-card:hover .tl-thumb img{transform:scale(1.06)}
.tl-thumb .badge-new{
  position:absolute;top:12px;left:12px;
  padding:4px 10px;border-radius:6px;font-size:11px;font-weight:700;
  background:var(--grad);color:#fff;letter-spacing:.5px;
}
.tl-thumb .badge-hd{
  position:absolute;top:12px;right:12px;
  padding:4px 10px;border-radius:6px;font-size:11px;font-weight:700;
  background:rgba(0,0,0,.6);color:#fff;border:1px solid rgba(255,255,255,.2);
}
.tl-thumb .dur{
  position:absolute;bottom:10px;right:10px;
  padding:3px 8px;border-radius:4px;font-size:12px;
  background:rgba(0,0,0,.75);color:#fff;
}
.tl-body{padding:18px}
.tl-body h4{font-size:16px;line-height:1.4;margin-bottom:10px}
.tl-body h4 a:hover{color:var(--c-brand-2)}
.tl-meta{display:flex;gap:14px;font-size:13px;color:var(--c-muted);flex-wrap:wrap}
.tl-meta span{display:inline-flex;align-items:center;gap:5px}
.tl-meta em{font-style:normal;color:var(--c-brand-2);font-weight:700}

/* Highlights */
.hl-section{background:var(--c-surface)}
.hl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.hl-card{
  padding:28px 24px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,var(--c-surface-2) 0%,var(--c-surface) 100%);
  border:1px solid var(--c-line);
  position:relative;overflow:hidden;
  transition:transform .3s,border-color .3s;
}
.hl-card:hover{transform:translateY(-6px);border-color:rgba(255,180,84,.4)}
.hl-card::before{
  content:"";position:absolute;right:-30px;top:-30px;width:120px;height:120px;
  background:var(--grad);border-radius:50%;opacity:.08;filter:blur(20px);
}
.hl-num{
  font-size:14px;font-weight:700;color:var(--c-brand);
  letter-spacing:2px;margin-bottom:12px;
}
.hl-card h3{font-size:19px;margin-bottom:12px}
.hl-card p{color:var(--c-muted);font-size:14px;line-height:1.7}

/* Slots table */
.slots-section{background:var(--c-bg)}
.slots-wrap{display:grid;grid-template-columns:1.15fr 1fr;gap:44px;align-items:start}
.slots-left h3{font-size:22px;margin-bottom:14px}
.slots-left p{color:var(--c-muted);margin-bottom:22px;line-height:1.8}
.slots-note{
  padding:18px 20px;border-radius:14px;
  background:rgba(91,140,255,.08);border:1px solid rgba(91,140,255,.25);
  color:#c9d6ff;font-size:14px;line-height:1.7;
}
.slots-table{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;
}
.slots-row{
  display:grid;grid-template-columns:110px 1fr auto;gap:14px;
  padding:16px 20px;align-items:center;
  border-bottom:1px solid var(--c-line);
}
.slots-row:last-child{border-bottom:0}
.slots-row.head{background:var(--c-surface-2);font-size:13px;color:var(--c-muted);letter-spacing:1px}
.slots-time{font-family:"SF Mono",Consolas,monospace;color:var(--c-brand-2);font-weight:700;font-size:15px}
.slots-name{font-size:15px}
.slots-name em{font-style:normal;color:var(--c-muted);font-size:13px;display:block;margin-top:2px}
.slots-tag{
  padding:4px 12px;border-radius:999px;font-size:12px;
  background:rgba(255,90,122,.14);color:#ffb0c0;border:1px solid rgba(255,90,122,.28);
}
.slots-tag.wk{background:rgba(61,220,151,.14);color:var(--c-ok);border-color:rgba(61,220,151,.28)}

/* How it works */
.how-section{
  background:
    linear-gradient(180deg,rgba(11,13,20,.9) 0%,rgba(11,13,20,.95) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover fixed no-repeat;
}
.how-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.how-step{
  padding:26px 22px;border-radius:var(--r-lg);
  background:rgba(18,21,31,.75);
  border:1px solid var(--c-line);
  backdrop-filter:blur(6px);
  position:relative;
}
.how-step .step-n{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad-2);color:#fff;font-weight:800;font-size:18px;
  margin-bottom:16px;box-shadow:0 8px 20px rgba(91,140,255,.35);
}
.how-step h4{font-size:17px;margin-bottom:10px}
.how-step p{color:var(--c-muted);font-size:14px;line-height:1.7}
.how-step::after{
  content:"→";position:absolute;right:-16px;top:34px;
  color:var(--c-line);font-size:22px;font-weight:300;
}
.how-step:last-child::after{display:none}

/* Feature cards with images */
.feat-section{padding-bottom:60px}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;
  transition:transform .3s,box-shadow .3s;
}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.feat-thumb{aspect-ratio:16/9;overflow:hidden;position:relative}
.feat-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.feat-card:hover .feat-thumb img{transform:scale(1.05)}
.feat-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(11,13,20,.85) 100%);
}
.feat-thumb .label{
  position:absolute;bottom:14px;left:16px;z-index:2;
  padding:5px 12px;border-radius:8px;font-size:12px;
  background:var(--grad);color:#fff;font-weight:600;
}
.feat-body{padding:22px}
.feat-body h4{font-size:18px;margin-bottom:10px}
.feat-body p{color:var(--c-muted);font-size:14px;line-height:1.75;margin-bottom:14px}
.feat-list{display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--c-muted)}
.feat-list li{padding-left:22px;position:relative}
.feat-list li::before{
  content:"";position:absolute;left:0;top:8px;
  width:14px;height:14px;border-radius:50%;
  background:rgba(61,220,151,.2);
  border:2px solid var(--c-ok);
}

/* FAQ */
.faq-section{background:var(--c-surface)}
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--c-bg);border:1px solid var(--c-line);
  border-radius:14px;margin-bottom:14px;overflow:hidden;
  transition:border-color .2s;
}
.faq-item:hover{border-color:rgba(255,90,122,.3)}
.faq-q{
  width:100%;text-align:left;padding:20px 24px;
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  font-size:16px;font-weight:600;
}
.faq-q .plus{
  width:26px;height:26px;border-radius:50%;
  background:var(--c-surface-2);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;color:var(--c-brand-2);
  transition:transform .3s,background .3s;flex-shrink:0;
}
.faq-item.open .plus{transform:rotate(45deg);background:var(--grad);color:#fff}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .4s ease,padding .3s;
  padding:0 24px;
  color:var(--c-muted);font-size:15px;line-height:1.85;
}
.faq-item.open .faq-a{max-height:400px;padding:0 24px 22px}

/* CTA */
.cta-section{
  position:relative;padding:90px 0;
  background:
    linear-gradient(120deg,rgba(255,90,122,.85) 0%,rgba(255,180,84,.8) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  text-align:center;
  overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 30% 40%,rgba(255,255,255,.15),transparent 50%);
}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{font-size:42px;margin-bottom:16px;color:#fff}
.cta-section p{font-size:18px;color:rgba(255,255,255,.9);margin-bottom:32px;max-width:640px;margin-left:auto;margin-right:auto}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-btns .btn-primary{background:#fff;color:#d4325a}
.cta-btns .btn-primary:hover{color:#a91d43;background:#fff}
.cta-btns .btn-ghost{background:rgba(0,0,0,.2);color:#fff;border-color:rgba(255,255,255,.4)}

/* Footer */
.site-footer{background:#080a10;padding:64px 0 24px;border-top:1px solid var(--c-line)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px;margin-bottom:44px}
.footer-brand p{color:var(--c-muted);font-size:14px;line-height:1.8;max-width:340px}
.footer-col h5{font-size:15px;margin-bottom:18px;color:var(--c-text)}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:var(--c-muted);font-size:14px;transition:color .2s,padding-left .2s}
.footer-col a:hover{color:var(--c-brand-2);padding-left:4px}
.footer-bottom{
  padding-top:24px;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;color:var(--c-muted);font-size:13px;
  flex-wrap:wrap;gap:10px;
}

/* Responsive */
@media (max-width:1024px){
  .cat-hero h1{font-size:42px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .tl-grid{grid-template-columns:repeat(2,1fr)}
  .hl-grid{grid-template-columns:repeat(2,1fr)}
  .how-grid{grid-template-columns:repeat(2,1fr)}
  .how-step::after{display:none}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .slots-wrap{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  section{padding:60px 0}
  .cat-hero{padding:60px 0 70px}
  .cat-hero h1{font-size:32px}
  .section-head h2{font-size:28px}
  .cta-section h2{font-size:30px}
  .main-nav{
    display:none;position:absolute;top:72px;left:0;right:0;
    background:var(--c-surface);flex-direction:column;padding:14px;gap:4px;
    border-bottom:1px solid var(--c-line);
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 16px}
  .menu-toggle{display:block}
  .nav-cta{display:none}
  .hero-meta{gap:20px}
  .hero-meta strong{font-size:22px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .cat-hero h1{font-size:26px}
  .cat-hero p.lead{font-size:15px}
  .section-head h2{font-size:24px}
  .tl-grid{grid-template-columns:1fr}
  .hl-grid{grid-template-columns:1fr}
  .how-grid{grid-template-columns:1fr}
  .feat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .slots-row{grid-template-columns:90px 1fr;grid-auto-rows:auto}
  .slots-row .slots-tag{grid-column:1/-1}
  .btn{padding:12px 20px;font-size:14px}
  .hero-clock{padding:22px}
  .hero-clock .date-big{font-size:30px}
}

/* roulang page: category2 */
:root{
  --bg:#0b0d14;
  --bg-2:#12151f;
  --panel:#171a26;
  --panel-2:#1f2432;
  --border:#2a2f42;
  --text:#eef1f8;
  --muted:#9aa1b6;
  --brand:#ff2e63;
  --brand-2:#7a5cff;
  --accent:#25e2c8;
  --gold:#ffcc4d;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --shadow-hover:0 18px 46px rgba(0,0,0,.5);
  --transition:.25s ease;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  -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;border:0;background:none;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:.5px}
p{margin:0}
.container{max-width:1240px;margin:0 auto;padding:0 24px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,13,20,.85);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:grid;place-items:center;color:#fff;font-size:18px;
  box-shadow:0 6px 18px rgba(255,46,99,.4);
}
.brand-text{background:linear-gradient(90deg,#fff,#c9cee0);-webkit-background-clip:text;background-clip:text;color:transparent}
.main-nav{display:flex;gap:6px;flex-wrap:wrap}
.main-nav a{
  padding:8px 14px;border-radius:10px;font-size:15px;color:var(--muted);
  transition:all var(--transition);position:relative;
}
.main-nav a:hover{color:#fff;background:var(--panel-2)}
.main-nav a.active{color:#fff;background:linear-gradient(135deg,rgba(255,46,99,.18),rgba(122,92,255,.18));box-shadow:inset 0 0 0 1px rgba(255,46,99,.35)}
.nav-cta{
  padding:10px 20px;border-radius:999px;font-size:14px;font-weight:600;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;
  box-shadow:0 8px 22px rgba(255,46,99,.35);
  transition:transform var(--transition),box-shadow var(--transition);
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,46,99,.5)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;background:var(--panel-2);position:relative}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:10px;right:10px;height:2px;background:#fff;border-radius:2px;transition:all var(--transition);
}
.menu-toggle span{top:50%;transform:translateY(-50%)}
.menu-toggle span::before{top:-8px}
.menu-toggle span::after{top:8px}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:96px 0 88px;
  background:
    linear-gradient(180deg,rgba(11,13,20,.65),rgba(11,13,20,.92)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(60% 50% at 80% 20%,rgba(255,46,99,.35),transparent 60%),
             radial-gradient(50% 40% at 15% 80%,rgba(37,226,200,.25),transparent 60%);
}
.hero-inner{position:relative;z-index:2;max-width:960px}
.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(255,255,255,.14);
  font-size:13px;color:#e5e8f2;margin-bottom:22px;
}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
.hero h1{
  font-size:56px;line-height:1.15;margin-bottom:20px;
  background:linear-gradient(90deg,#fff 0%,#ffd0dc 60%,#c8b8ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:19px;color:#d5d9e6;margin-bottom:32px;max-width:760px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:12px;font-weight:600;font-size:15px;
  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:0 10px 26px rgba(255,46,99,.4)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,46,99,.55)}
.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;transform:translateY(-2px)}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;max-width:820px}
.hero-stat{
  padding:18px 20px;border-radius:14px;
  background:rgba(23,26,38,.7);border:1px solid var(--border);backdrop-filter:blur(6px);
}
.hero-stat b{display:block;font-size:28px;background:linear-gradient(90deg,#fff,#25e2c8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stat span{font-size:13px;color:var(--muted)}

/* Section base */
section{padding:88px 0;position:relative}
.section-head{max-width:760px;margin:0 auto 52px;text-align:center}
.section-eyebrow{
  display:inline-block;padding:6px 14px;border-radius:999px;font-size:12px;letter-spacing:2px;
  color:var(--accent);background:rgba(37,226,200,.1);border:1px solid rgba(37,226,200,.3);
  margin-bottom:16px;
}
.section-title{font-size:38px;line-height:1.25;margin-bottom:14px}
.section-desc{color:var(--muted);font-size:16px}

/* Quality grid */
.quality{background:var(--bg-2)}
.quality-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quality-card{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px 24px;transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.quality-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(255,46,99,.35)}
.quality-badge{
  display:inline-block;padding:6px 12px;border-radius:8px;font-size:12px;font-weight:700;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;margin-bottom:16px;letter-spacing:1px;
}
.quality-card h3{font-size:22px;margin-bottom:10px}
.quality-card p{color:var(--muted);font-size:14px;margin-bottom:14px}
.quality-card ul li{
  font-size:13px;color:#c9cee0;padding-left:20px;position:relative;margin-bottom:6px;
}
.quality-card ul li::before{
  content:"";position:absolute;left:0;top:8px;width:10px;height:10px;
  background:linear-gradient(135deg,var(--brand),var(--accent));border-radius:3px;transform:rotate(45deg);
}

/* Feature split */
.features .feat-row{
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;margin-bottom:80px;
}
.features .feat-row:last-child{margin-bottom:0}
.features .feat-row.reverse{grid-template-columns:1fr 1.05fr}
.features .feat-row.reverse .feat-media{order:-1}
.feat-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--border);
}
.feat-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.feat-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(11,13,20,.75));
}
.feat-media .media-tag{
  position:absolute;left:20px;bottom:20px;z-index:2;
  padding:6px 12px;border-radius:8px;font-size:12px;
  background:rgba(11,13,20,.7);border:1px solid rgba(255,255,255,.15);color:#fff;
}
.feat-text .feat-num{
  font-size:14px;letter-spacing:4px;color:var(--brand);font-weight:700;margin-bottom:10px;display:block;
}
.feat-text h3{font-size:30px;line-height:1.3;margin-bottom:16px}
.feat-text p{color:var(--muted);margin-bottom:18px;font-size:15px}
.feat-check{display:grid;gap:10px}
.feat-check li{
  padding-left:28px;position:relative;font-size:14px;color:#dfe3ee;
}
.feat-check li::before{
  content:"✓";position:absolute;left:0;top:0;
  width:20px;height:20px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff;font-size:12px;display:grid;place-items:center;font-weight:700;
}

/* Scenario cards */
.scenarios{background:var(--bg-2)}
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scenario-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--border);min-height:340px;
  transition:transform var(--transition),box-shadow var(--transition);
}
.scenario-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.scenario-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scenario-card:hover img{transform:scale(1.06)}
.scenario-card .scene-cover{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,20,.2) 0%,rgba(11,13,20,.85) 70%,rgba(11,13,20,.96));
}
.scenario-card .scene-body{
  position:absolute;left:0;right:0;bottom:0;padding:24px;z-index:2;
}
.scenario-card .scene-tag{
  display:inline-block;padding:5px 10px;border-radius:6px;font-size:12px;
  background:rgba(255,46,99,.85);color:#fff;margin-bottom:12px;
}
.scenario-card h3{font-size:22px;margin-bottom:8px}
.scenario-card p{font-size:14px;color:#c9cee0}

/* Process */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.process-step{
  padding:28px 22px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--border);position:relative;transition:transform var(--transition);
}
.process-step:hover{transform:translateY(-4px);border-color:rgba(122,92,255,.4)}
.step-num{
  display:inline-grid;place-items:center;width:44px;height:44px;border-radius:12px;
  background:rgba(122,92,255,.15);border:1px solid rgba(122,92,255,.35);
  color:#c8b8ff;font-weight:800;font-size:18px;margin-bottom:16px;
}
.process-step h3{font-size:19px;margin-bottom:10px}
.process-step p{font-size:14px;color:var(--muted)}

/* Playlist */
.playlist{background:var(--bg-2)}
.playlist-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.play-card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:transform var(--transition),box-shadow var(--transition);
}
.play-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.play-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.play-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.play-card:hover .play-thumb img{transform:scale(1.06)}
.play-thumb .q-badge{
  position:absolute;top:12px;left:12px;padding:4px 10px;border-radius:6px;
  font-size:11px;font-weight:700;letter-spacing:1px;color:#0b0d14;background:var(--gold);
}
.play-thumb .duration{
  position:absolute;bottom:12px;right:12px;padding:3px 8px;border-radius:5px;
  background:rgba(0,0,0,.7);font-size:12px;color:#fff;
}
.play-body{padding:16px 18px 20px}
.play-body h4{font-size:16px;margin-bottom:8px;line-height:1.4}
.play-meta{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted)}
.play-meta .heat{color:var(--brand)}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:border-color var(--transition);
}
.faq-item[open]{border-color:rgba(255,46,99,.4)}
.faq-item summary{
  padding:20px 24px;cursor:pointer;font-weight:600;font-size:16px;
  display:flex;justify-content:space-between;align-items:center;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";width:28px;height:28px;border-radius:8px;
  background:var(--panel-2);display:grid;place-items:center;font-size:20px;color:var(--brand);
  transition:transform var(--transition);
}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.75}

/* CTA */
.cta-band{
  padding:80px 0;
  background:
    linear-gradient(120deg,rgba(255,46,99,.85),rgba(122,92,255,.85)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  text-align:center;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(50% 60% at 50% 50%,rgba(255,255,255,.15),transparent 70%);
}
.cta-band .container{position:relative}
.cta-band h2{font-size:40px;margin-bottom:16px;color:#fff}
.cta-band p{color:rgba(255,255,255,.9);font-size:17px;max-width:640px;margin:0 auto 30px}
.cta-band .btn-primary{background:#fff;color:var(--brand);box-shadow:0 12px 30px rgba(0,0,0,.3)}
.cta-band .btn-primary:hover{color:var(--brand);background:#fff5f8}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.15);color:#fff}

/* Footer */
.site-footer{background:#08090f;border-top:1px solid var(--border);padding:64px 0 28px;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px;
}
.footer-col h5{font-size:15px;margin-bottom:18px;color:#fff;letter-spacing:1px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:var(--muted);font-size:14px;transition:color var(--transition)}
.footer-col ul a:hover{color:var(--brand)}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.7}
.footer-bottom{
  border-top:1px solid var(--border);padding-top:22px;
  display:flex;justify-content:space-between;color:var(--muted);font-size:13px;flex-wrap:wrap;gap:10px;
}

/* Responsive */
@media (max-width:1024px){
  .hero h1{font-size:44px}
  .quality-grid,.playlist-grid{grid-template-columns:repeat(2,1fr)}
  .scenario-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .features .feat-row,.features .feat-row.reverse{grid-template-columns:1fr;gap:28px}
  .features .feat-row.reverse .feat-media{order:0}
}
@media (max-width:768px){
  .main-nav{
    position:absolute;top:72px;left:0;right:0;
    flex-direction:column;background:var(--bg-2);
    padding:16px;gap:4px;border-bottom:1px solid var(--border);
    display:none;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 14px;width:100%}
  .menu-toggle{display:block}
  .nav-cta{display:none}
  .hero{padding:64px 0 60px}
  .hero h1{font-size:34px}
  .hero-lead{font-size:16px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  section{padding:64px 0}
  .section-title{font-size:28px}
  .cta-band h2{font-size:28px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .quality-grid,.playlist-grid,.scenario-grid,.process-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero h1{font-size:28px}
  .hero-stat b{font-size:22px}
}

/* roulang page: category5 */
:root{
  --c-bg:#0b0d14;
  --c-bg-2:#11141d;
  --c-surface:#161a25;
  --c-surface-2:#1d2230;
  --c-border:rgba(255,255,255,.08);
  --c-border-strong:rgba(255,255,255,.16);
  --c-text:#eef1ف;
  --c-text:#eef1f6;
  --c-muted:#9aa3b2;
  --c-primary:#ff3b6b;
  --c-primary-2:#ff7a3d;
  --c-accent:#5b8dff;
  --c-success:#3ddc97;
  --grad-primary:linear-gradient(135deg,#ff3b6b 0%,#ff7a3d 100%);
  --grad-cool:linear-gradient(135deg,#5b8dff 0%,#8a5bff 100%);
  --grad-hero:linear-gradient(135deg,rgba(255,59,107,.18) 0%,rgba(91,141,255,.14) 100%);
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 4px 14px rgba(0,0,0,.25);
  --shadow:0 12px 40px rgba(0,0,0,.35);
  --shadow-lg:0 24px 60px rgba(0,0,0,.5);
  --space:20px;
  --ff:-apple-system,BlinkMacSystemFont,"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:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer;border:0;background:transparent;color:inherit}
ul{list-style:none;padding:0;margin:0}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,13,20,.82);
  backdrop-filter:saturate(140%) blur(14px);
  -webkit-backdrop-filter:saturate(140%) blur(14px);
  border-bottom:1px solid var(--c-border);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--grad-primary);
  display:grid;place-items:center;
  color:#fff;font-size:18px;font-weight:900;
  box-shadow:0 6px 20px rgba(255,59,107,.4);
}
.brand-text{font-size:18px;letter-spacing:.5px}
.main-nav{display:flex;gap:6px;margin-left:12px;flex:1;flex-wrap:wrap}
.main-nav a{
  padding:8px 14px;border-radius:999px;
  color:var(--c-muted);font-size:14.5px;font-weight:500;
  transition:all .2s ease;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.05)}
.main-nav a.active{color:#fff;background:var(--grad-primary);box-shadow:0 4px 14px rgba(255,59,107,.35)}
.nav-cta{
  padding:10px 20px;border-radius:999px;
  background:#fff;color:#0b0d14 !important;
  font-weight:700;font-size:14px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(255,255,255,.15)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.06)}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{
  content:"";display:block;width:18px;height:2px;background:#fff;margin:0 auto;position:relative;
}
.menu-toggle span::before{position:absolute;top:-6px}
.menu-toggle span::after{position:absolute;top:6px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:80px 0 90px;
  background:
    var(--grad-hero),
    linear-gradient(180deg,rgba(11,13,20,.4),rgba(11,13,20,.95)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(60% 50% at 80% 20%,rgba(255,59,107,.25),transparent 60%),
             radial-gradient(50% 50% at 15% 80%,rgba(91,141,255,.18),transparent 65%);
  pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--c-border-strong);
  font-size:13px;color:#ffd7a3;margin-bottom:22px;
}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 12px var(--c-primary)}
.hero h1{
  font-size:52px;line-height:1.15;letter-spacing:-.5px;
  margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  background:var(--grad-primary);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:#c7cddb;max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.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;cursor:pointer;
}
.btn-primary{background:var(--grad-primary);color:#fff;box-shadow:0 10px 30px rgba(255,59,107,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(255,59,107,.5);color:#fff}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid var(--c-border-strong)}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.hero-meta{display:flex;gap:32px;flex-wrap:wrap}
.hero-meta div{display:flex;flex-direction:column}
.hero-meta strong{font-size:26px;color:#fff}
.hero-meta span{font-size:13px;color:var(--c-muted)}

/* Phone mockup */
.phone-frame{
  position:relative;justify-self:center;
  width:280px;height:560px;
  border-radius:44px;
  background:linear-gradient(180deg,#22283a,#0f1220);
  padding:14px;
  box-shadow:var(--shadow-lg),inset 0 0 0 1px rgba(255,255,255,.08);
}
.phone-frame::after{
  content:"";position:absolute;top:14px;left:50%;transform:translateX(-50%);
  width:110px;height:22px;border-radius:0 0 14px 14px;background:#0b0d14;z-index:2;
}
.phone-screen{
  width:100%;height:100%;border-radius:32px;overflow:hidden;
  background:url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
  position:relative;
}
.phone-screen::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,.1) 0%,rgba(0,0,0,.75) 100%);
}
.phone-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;
  background:rgba(255,255,255,.95);
  display:grid;place-items:center;
  box-shadow:0 12px 30px rgba(0,0,0,.4);
}
.phone-play::after{
  content:"";width:0;height:0;
  border-left:16px solid #0b0d14;
  border-top:10px solid transparent;
  border-bottom:10px solid transparent;
  margin-left:4px;
}
.phone-caption{
  position:absolute;left:16px;right:16px;bottom:18px;color:#fff;z-index:1;
}
.phone-caption b{display:block;font-size:15px;margin-bottom:6px}
.phone-caption small{color:#dbe2ef;font-size:12px}
.phone-badge{
  position:absolute;top:20px;left:20px;z-index:1;
  padding:5px 10px;border-radius:6px;
  background:var(--grad-primary);color:#fff;font-size:11px;font-weight:700;
}
.phone-float{
  position:absolute;padding:12px 16px;border-radius:14px;
  background:rgba(22,26,37,.9);backdrop-filter:blur(10px);
  border:1px solid var(--c-border-strong);
  box-shadow:var(--shadow);font-size:13px;
  display:flex;align-items:center;gap:10px;
}
.phone-float .dot{width:8px;height:8px;border-radius:50%;background:var(--c-success);box-shadow:0 0 10px var(--c-success)}
.phone-float.f-top{top:60px;left:-70px}
.phone-float.f-bot{bottom:80px;right:-80px}

/* ============ Section base ============ */
.section{padding:80px 0;position:relative}
.section-alt{background:var(--c-bg-2)}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-tag{
  display:inline-block;padding:6px 14px;border-radius:999px;
  background:rgba(255,59,107,.12);color:#ff8fa8;
  font-size:13px;font-weight:600;margin-bottom:16px;
  border:1px solid rgba(255,59,107,.25);
}
.section-title{font-size:38px;line-height:1.2;margin-bottom:16px}
.section-desc{color:var(--c-muted);font-size:16px}

/* ============ Feature grid ============ */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature-card{
  padding:32px 26px;border-radius:var(--radius-lg);
  background:var(--c-surface);
  border:1px solid var(--c-border);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--c-border-strong);box-shadow:var(--shadow)}
.feature-ico{
  width:52px;height:52px;border-radius:14px;
  background:var(--grad-primary);
  display:grid;place-items:center;color:#fff;font-size:22px;font-weight:800;
  margin-bottom:20px;
}
.feature-card:nth-child(2) .feature-ico{background:var(--grad-cool)}
.feature-card:nth-child(3) .feature-ico{background:linear-gradient(135deg,#3ddc97,#5b8dff)}
.feature-card:nth-child(4) .feature-ico{background:linear-gradient(135deg,#f5b800,#ff7a3d)}
.feature-card:nth-child(5) .feature-ico{background:linear-gradient(135deg,#8a5bff,#ff3b6b)}
.feature-card:nth-child(6) .feature-ico{background:linear-gradient(135deg,#00c2ff,#3ddc97)}
.feature-card h3{font-size:19px;margin-bottom:10px}
.feature-card p{color:var(--c-muted);font-size:14.5px;margin:0}

/* ============ Scenario ============ */
.scenario-wrap{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.scenario-img{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-lg);
  aspect-ratio:4/3;
}
.scenario-img img{width:100%;height:100%;object-fit:cover}
.scenario-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.5));
}
.scenario-list{display:flex;flex-direction:column;gap:18px}
.scenario-item{
  display:flex;gap:18px;padding:20px;border-radius:var(--radius);
  background:var(--c-surface);border:1px solid var(--c-border);
  transition:all .25s ease;
}
.scenario-item:hover{border-color:var(--c-primary);transform:translateX(4px)}
.scenario-num{
  flex:0 0 44px;height:44px;border-radius:12px;
  background:var(--grad-primary);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:17px;
}
.scenario-item h4{font-size:16px;margin-bottom:6px}
.scenario-item p{color:var(--c-muted);font-size:14px;margin:0}

/* ============ Process ============ */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.process-step{
  padding:28px 22px;border-radius:var(--radius-lg);
  background:var(--c-surface);border:1px solid var(--c-border);
  position:relative;
}
.process-step .n{
  font-size:44px;font-weight:900;line-height:1;
  background:var(--grad-primary);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:14px;
}
.process-step h4{font-size:17px;margin-bottom:8px}
.process-step p{color:var(--c-muted);font-size:14px;margin:0}

/* ============ Compare ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-card{
  padding:32px;border-radius:var(--radius-lg);
  border:1px solid var(--c-border);
  background:var(--c-surface);
}
.compare-card.bad{opacity:.85}
.compare-card.good{
  background:linear-gradient(180deg,rgba(255,59,107,.08),var(--c-surface));
  border-color:rgba(255,59,107,.3);
}
.compare-head{display:flex;align-items:center;gap:12px;margin-bottom:22px;padding-bottom:20px;border-bottom:1px solid var(--c-border)}
.compare-head b{font-size:20px}
.compare-tag{padding:4px 10px;border-radius:6px;font-size:12px;font-weight:700}
.compare-card.bad .compare-tag{background:rgba(154,163,178,.15);color:var(--c-muted)}
.compare-card.good .compare-tag{background:var(--grad-primary);color:#fff}
.compare-list li{padding:10px 0;display:flex;gap:12px;color:#c7cddb;font-size:14.5px}
.compare-list li::before{
  content:"";flex:0 0 20px;height:20px;border-radius:50%;
  background:rgba(154,163,178,.15);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239aa3b2' stroke-width='3'%3E%3Cpath d='M6 6l12 12M18 6L6 18'/%3E%3C/svg%3E");
  background-size:14px;background-repeat:no-repeat;background-position:center;
}
.compare-card.good .compare-list li::before{
  background-color:rgba(61,220,151,.15);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233ddc97' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E");
}

/* ============ Content list ============ */
.list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.list-card{
  border-radius:var(--radius-lg);overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-border);
  transition:all .3s ease;
}
.list-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--c-border-strong)}
.list-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.list-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.list-card:hover .list-cover img{transform:scale(1.06)}
.list-cover .duration{
  position:absolute;bottom:10px;right:10px;
  padding:3px 8px;border-radius:6px;
  background:rgba(0,0,0,.7);color:#fff;font-size:12px;font-weight:600;
}
.list-cover .hd{
  position:absolute;top:10px;left:10px;
  padding:3px 8px;border-radius:6px;
  background:var(--grad-primary);color:#fff;font-size:11px;font-weight:700;
}
.list-body{padding:18px 20px 22px}
.list-body h3{font-size:16.5px;margin-bottom:10px;line-height:1.4}
.list-meta{display:flex;gap:14px;color:var(--c-muted);font-size:13px}
.list-meta span{display:inline-flex;align-items:center;gap:5px}

/* ============ FAQ ============ */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:var(--radius);
  background:var(--c-surface);border:1px solid var(--c-border);
  overflow:hidden;transition:border-color .2s ease;
}
.faq-item[open]{border-color:var(--c-border-strong)}
.faq-item summary{
  padding:20px 24px;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-weight:600;font-size:16px;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:24px;color:var(--c-primary);
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 24px 22px;margin:0;color:var(--c-muted);font-size:15px;line-height:1.75}

/* ============ CTA ============ */
.cta-band{
  position:relative;padding:70px 0;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(11,13,20,.7),rgba(11,13,20,.85)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(50% 60% at 20% 50%,rgba(255,59,107,.35),transparent 60%);
}
.cta-inner{position:relative;text-align:center;max-width:720px;margin:0 auto}
.cta-inner h2{font-size:38px;margin-bottom:16px}
.cta-inner p{color:#d5dbe8;font-size:17px;margin-bottom:30px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ============ Footer ============ */
.site-footer{
  background:#07080d;padding:64px 0 24px;
  border-top:1px solid var(--c-border);
  margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--c-border)}
.footer-col h5{font-size:15px;margin-bottom:18px;color:#fff}
.footer-col p{color:var(--c-muted);font-size:14px;line-height:1.75;margin:0}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:var(--c-muted);font-size:14px}
.footer-col ul a:hover{color:#fff}
.footer-bottom{
  padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--c-muted);font-size:13px;
}

/* ============ Responsive ============ */
@media (max-width:1024px){
  .hero h1{font-size:42px}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .list-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .main-nav{
    position:absolute;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:16px;background:rgba(11,13,20,.98);
    border-bottom:1px solid var(--c-border);
    display:none;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 16px;border-radius:10px}
  .menu-toggle{display:grid;place-items:center}
  .nav-cta{padding:8px 14px;font-size:13px}
  .section{padding:60px 0}
  .section-title,.cta-inner h2{font-size:28px}
  .hero{padding:56px 0 60px}
  .hero-inner{grid-template-columns:1fr;gap:40px;text-align:center}
  .hero-meta{justify-content:center}
  .hero h1{font-size:34px}
  .hero-sub{margin-left:auto;margin-right:auto}
  .hero-actions{justify-content:center}
  .phone-float.f-top{top:20px;left:0}
  .phone-float.f-bot{bottom:30px;right:0}
  .scenario-wrap{grid-template-columns:1fr;gap:36px}
  .compare-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .feature-grid,.list-grid,.process-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero h1{font-size:28px}
  .hero-meta{gap:20px}
  .hero-meta strong{font-size:22px}
  .phone-frame{width:230px;height:460px}
  .phone-float{display:none}
  .nav-wrap{gap:12px}
  .brand-text{font-size:16px}
}

/* roulang page: category4 */
:root{
  --c-bg:#0b0d14;
  --c-bg-2:#11141d;
  --c-surface:#161a25;
  --c-surface-2:#1c2130;
  --c-border:#232a3b;
  --c-text:#e9ecf5;
  --c-muted:#9aa3b8;
  --c-primary:#ff4e6b;
  --c-primary-2:#ff8a5c;
  --c-accent:#7c5cff;
  --c-gold:#f5c26b;
  --grad:linear-gradient(135deg,#ff4e6b 0%,#ff8a5c 100%);
  --grad-2:linear-gradient(135deg,#7c5cff 0%,#ff4e6b 100%);
  --r-sm:8px;--r-md:14px;--r-lg:20px;--r-xl:28px;
  --sh-sm:0 4px 14px rgba(0,0,0,.25);
  --sh-md:0 10px 30px rgba(0,0,0,.35);
  --sh-lg:0 20px 60px rgba(0,0,0,.45);
  --sp-1:8px;--sp-2:14px;--sp-3:20px;--sp-4:28px;--sp-5:40px;--sp-6:60px;--sp-7:80px;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  color:var(--c-text);background:var(--c-bg);line-height:1.7;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3}
p{margin:0}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 24px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,13,20,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--c-border)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:var(--grad);color:#fff;font-size:18px;box-shadow:0 6px 18px rgba(255,78,107,.4)}
.brand-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.main-nav{display:flex;gap:6px;align-items:center;flex:1;justify-content:center}
.main-nav a{padding:9px 16px;border-radius:10px;font-size:15px;color:var(--c-muted);font-weight:500;position:relative}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.05)}
.main-nav a.active{color:#fff;background:rgba(255,78,107,.14)}
.main-nav a.active::after{content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;background:var(--grad);border-radius:2px}
.nav-cta{padding:11px 22px;border-radius:999px;background:var(--grad);color:#fff;font-weight:600;font-size:14px;box-shadow:0 8px 20px rgba(255,78,107,.35);transition:transform .2s ease,box-shadow .2s ease}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,78,107,.5)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;background:var(--c-surface);position:relative}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{position:absolute;left:50%;top:50%;width:20px;height:2px;background:#fff;transform:translate(-50%,-50%);content:""}
.menu-toggle span::before{top:-7px}
.menu-toggle span::after{top:7px}

/* Hero */
.hero{
  position:relative;padding:80px 0 90px;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(11,13,20,.55) 0%,rgba(11,13,20,.9) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(1200px 500px at 20% 0%,rgba(255,78,107,.25),transparent 60%),radial-gradient(900px 400px at 90% 100%,rgba(124,92,255,.22),transparent 60%);pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid var(--c-border);font-size:13px;color:var(--c-muted);margin-bottom:22px}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--c-gold);box-shadow:0 0 0 4px rgba(245,194,107,.15)}
.hero h1{font-size:52px;letter-spacing:-.5px;margin-bottom:20px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;color:#c8cde0;margin-bottom:30px;max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.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;border:1px solid transparent}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(255,78,107,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,78,107,.5)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border-color:var(--c-border)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#3a4360}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;max-width:520px}
.hero-stats .item{padding:16px 18px;border-radius:var(--r-md);background:rgba(255,255,255,.04);border:1px solid var(--c-border)}
.hero-stats .num{font-size:26px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;display:block;margin-bottom:4px}
.hero-stats .lbl{font-size:13px;color:var(--c-muted)}

.hero-cards{position:relative;height:460px}
.hero-cards .cover{position:absolute;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-lg);border:1px solid var(--c-border)}
.hero-cards .cover img{width:100%;height:100%;object-fit:cover}
.hero-cards .c1{top:0;left:0;width:62%;height:65%;transform:rotate(-3deg)}
.hero-cards .c2{bottom:0;right:0;width:58%;height:62%;transform:rotate(4deg)}
.hero-cards .c3{top:24%;right:8%;width:40%;height:40%;transform:rotate(-1deg);z-index:2}
.hero-cards .badge-float{position:absolute;top:12%;left:-8%;padding:12px 18px;border-radius:14px;background:rgba(22,26,37,.9);backdrop-filter:blur(8px);border:1px solid var(--c-border);font-size:13px;color:#fff;z-index:3;box-shadow:var(--sh-md)}
.hero-cards .badge-float b{color:var(--c-gold)}

/* Sections */
.section{padding:var(--sp-7) 0}
.section-title{text-align:center;margin-bottom:var(--sp-5)}
.section-title .kicker{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--c-primary);text-transform:uppercase;font-weight:600;margin-bottom:12px}
.section-title h2{font-size:38px;letter-spacing:-.3px;margin-bottom:14px}
.section-title p{max-width:640px;margin:0 auto;color:var(--c-muted);font-size:16px}

/* Feature grid */
.features{background:var(--c-bg-2)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature{padding:28px 24px;border-radius:var(--r-lg);background:var(--c-surface);border:1px solid var(--c-border);transition:transform .25s ease,border-color .25s ease}
.feature:hover{transform:translateY(-4px);border-color:#3a4360}
.feature .ic{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:var(--grad);margin-bottom:18px;font-size:22px}
.feature h3{font-size:18px;margin-bottom:10px}
.feature p{color:var(--c-muted);font-size:14.5px}

/* Collection grid */
.collections{background:var(--c-bg)}
.filter-bar{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-bottom:38px}
.filter-bar button{padding:9px 20px;border-radius:999px;background:var(--c-surface);border:1px solid var(--c-border);color:var(--c-muted);font-size:14px;transition:all .2s ease}
.filter-bar button.on,.filter-bar button:hover{background:var(--grad);color:#fff;border-color:transparent}
.col-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.col-card{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--c-surface);border:1px solid var(--c-border);transition:transform .3s ease,box-shadow .3s ease}
.col-card:hover{transform:translateY(-5px);box-shadow:var(--sh-lg)}
.col-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.col-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.col-card:hover .thumb img{transform:scale(1.06)}
.col-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 40%,rgba(0,0,0,.7) 100%)}
.col-card .tag{position:absolute;top:14px;left:14px;padding:5px 12px;border-radius:999px;background:rgba(0,0,0,.55);backdrop-filter:blur(6px);font-size:12px;color:#fff;z-index:2;border:1px solid rgba(255,255,255,.15)}
.col-card .num-badge{position:absolute;top:14px;right:14px;padding:5px 10px;border-radius:8px;background:var(--grad);color:#fff;font-size:12px;font-weight:600;z-index:2}
.col-card .info{padding:20px 22px}
.col-card h3{font-size:19px;margin-bottom:8px}
.col-card .desc{color:var(--c-muted);font-size:14px;margin-bottom:16px;min-height:44px}
.col-card .meta{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--c-muted);padding-top:14px;border-top:1px solid var(--c-border)}
.col-card .meta .score{color:var(--c-gold);font-weight:600}
.col-card .meta .go{color:#fff}

/* Ranking */
.ranking{background:var(--c-bg-2)}
.rank-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rank-col{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:26px}
.rank-col h4{font-size:18px;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--c-border);display:flex;align-items:center;gap:10px}
.rank-col h4 .badge{padding:3px 10px;border-radius:6px;font-size:11px;font-weight:600;background:var(--grad);color:#fff}
.rank-list li{display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.05);transition:padding-left .2s ease}
.rank-list li:last-child{border-bottom:none}
.rank-list li:hover{padding-left:6px}
.rank-list .no{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;font-size:13px;font-weight:700;background:var(--c-surface-2);color:var(--c-muted);flex-shrink:0}
.rank-list li:nth-child(1) .no{background:var(--grad);color:#fff}
.rank-list li:nth-child(2) .no{background:linear-gradient(135deg,#ff8a5c,#f5c26b);color:#fff}
.rank-list li:nth-child(3) .no{background:linear-gradient(135deg,#7c5cff,#ff4e6b);color:#fff}
.rank-list .name{flex:1;font-size:14.5px}
.rank-list .heat{font-size:12px;color:var(--c-primary);font-weight:600}

/* Timeline flow */
.flow{background:var(--c-bg)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:20px}
.flow-step{position:relative;padding:32px 24px;border-radius:var(--r-lg);background:var(--c-surface);border:1px solid var(--c-border)}
.flow-step .step-no{position:absolute;top:-16px;left:24px;width:36px;height:36px;border-radius:10px;background:var(--grad);display:grid;place-items:center;font-weight:700;font-size:15px}
.flow-step h4{font-size:17px;margin:14px 0 10px}
.flow-step p{color:var(--c-muted);font-size:14px}

/* Reviews */
.reviews{background:var(--c-bg-2);position:relative}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{padding:28px;border-radius:var(--r-lg);background:var(--c-surface);border:1px solid var(--c-border);position:relative}
.review-card .quote{font-size:44px;line-height:1;color:var(--c-primary);opacity:.35;position:absolute;top:14px;right:20px;font-family:Georgia,serif}
.review-card p{color:#c8cde0;font-size:15px;margin-bottom:22px}
.review-card .who{display:flex;align-items:center;gap:12px}
.review-card .avatar{width:42px;height:42px;border-radius:50%;background:var(--grad);display:grid;place-items:center;font-weight:700;color:#fff}
.review-card .name{font-size:14px;font-weight:600}
.review-card .role{font-size:12px;color:var(--c-muted)}
.review-card .stars{color:var(--c-gold);font-size:13px;margin-top:2px}

/* FAQ */
.faq{background:var(--c-bg)}
.faq-list{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{border:1px solid var(--c-border);border-radius:var(--r-md);background:var(--c-surface);overflow:hidden;transition:border-color .2s ease}
.faq-item:hover{border-color:#3a4360}
.faq-item summary{padding:20px 24px;font-size:16px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;list-style:none;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:24px;color:var(--c-primary);transition:transform .3s ease;font-weight:300}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .body{padding:0 24px 22px;color:var(--c-muted);font-size:15px;line-height:1.75}

/* CTA */
.cta{
  padding:var(--sp-6) 0;
  background:
    linear-gradient(120deg,rgba(255,78,107,.85),rgba(124,92,255,.85)),
    url('/assets/images/backpic/back-3.webp') center/cover;
  position:relative;overflow:hidden;
}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 30% 40%,rgba(255,255,255,.15),transparent)}
.cta-inner{position:relative;text-align:center;max-width:720px;margin:0 auto}
.cta h2{font-size:36px;color:#fff;margin-bottom:16px}
.cta p{color:rgba(255,255,255,.9);font-size:17px;margin-bottom:30px}
.cta .btn-primary{background:#fff;color:#ff4e6b;box-shadow:0 12px 30px rgba(0,0,0,.25)}
.cta .btn-primary:hover{color:#ff2c50}
.cta .btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.35);color:#fff}
.cta .btn-ghost:hover{background:rgba(255,255,255,.22)}

/* Footer */
.site-footer{background:#080a10;padding:var(--sp-6) 0 var(--sp-3);border-top:1px solid var(--c-border)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;padding-bottom:var(--sp-4)}
.footer-col h5{font-size:15px;margin-bottom:16px;color:#fff}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:var(--c-muted);font-size:14px}
.footer-col a:hover{color:var(--c-primary)}
.footer-brand p{color:var(--c-muted);font-size:14px;max-width:340px;line-height:1.7}
.footer-bottom{padding-top:var(--sp-3);border-top:1px solid var(--c-border);display:flex;justify-content:space-between;align-items:center;color:var(--c-muted);font-size:13px}

/* Responsive */
@media (max-width:1024px){
  .hero h1{font-size:42px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-cards{height:380px;max-width:520px;margin:0 auto}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .col-grid{grid-template-columns:repeat(2,1fr)}
  .rank-wrap{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .main-nav{display:none;position:absolute;top:72px;left:0;right:0;flex-direction:column;background:var(--c-bg-2);padding:16px;border-bottom:1px solid var(--c-border);gap:4px}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 16px;width:100%}
  .menu-toggle{display:block}
  .nav-cta{display:none}
  .hero{padding:56px 0 64px}
  .hero h1{font-size:34px}
  .section{padding:var(--sp-6) 0}
  .section-title h2{font-size:28px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .col-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
  .cta h2{font-size:26px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .hero h1{font-size:28px}
  .hero-lead{font-size:15px}
  .btn{padding:12px 20px;font-size:14px}
  .section-title h2{font-size:24px}
  .hero-cards{height:300px}
  .hero-cards .badge-float{left:0;font-size:12px;padding:8px 12px}
}