/* roulang page: index */
:root{
  --brand-1:#5B3BF6;
  --brand-2:#C13BFF;
  --cyan:#2EE6C6;
  --gold:#FFC24B;
  --red:#FF5A6E;
  --bg:#0D0A1C;
  --bg-a:#130F28;
  --bg-b:#171334;
  --card-a:#1B1636;
  --card-b:#221A44;
  --footer:#0A0817;
  --text:#F5F3FF;
  --text-2:#B9B2D8;
  --text-3:#7F78A0;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.06);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --sh-card:0 18px 44px rgba(11,8,30,.55);
  --sh-btn:0 10px 26px rgba(91,59,246,.45);
  --grad:linear-gradient(120deg,#5B3BF6,#C13BFF);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--gold);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.32;}
p{margin:0;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.scrolled{
  background:#0A0817;
  border-bottom-color:rgba(255,255,255,.06);
  box-shadow:0 10px 30px rgba(4,2,14,.5);
}
.header-top-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 auto;
  background:var(--grad);display:grid;place-items:center;
  box-shadow:var(--sh-btn);
}
.brand-mark svg{width:18px;height:18px;display:block;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
.search-box{position:relative;display:flex;align-items:center;flex:0 1 320px;margin-left:auto;}
.search-box input{
  width:100%;height:40px;border-radius:var(--r-sm);
  background:#14102A;border:1px solid rgba(255,255,255,.10);
  padding:0 14px 0 40px;font-size:14px;color:var(--text);
  outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(46,230,198,.14);}
.search-ico{position:absolute;left:13px;width:16px;height:16px;color:var(--text-3);pointer-events:none;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:40px;height:40px;flex-direction:column;justify-content:center;align-items:center;gap:4px;
  border-radius:12px;border:1px solid rgba(255,255,255,.14);background:transparent;
  transition:border-color .2s ease;
}
.nav-toggle:hover{border-color:var(--cyan);}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--text);border-radius:2px;}
.channel-nav{border-top:1px solid rgba(255,255,255,.05);}
.channel-inner{
  display:flex;align-items:center;gap:8px;height:44px;
  overflow-x:auto;scrollbar-width:none;overscroll-behavior:contain;
}
.channel-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 16px;
  border-radius:999px;border:1px solid rgba(255,255,255,.14);
  color:var(--text-2);font-size:14px;font-weight:600;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.pill:hover{color:var(--text);border-color:var(--cyan);}
.pill.active{
  background:var(--grad);color:#fff;border-color:transparent;
  box-shadow:0 8px 20px rgba(91,59,246,.35);
}

/* ============ buttons / badges ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,border-color .2s ease,background .2s ease,color .2s ease;
}
.btn:hover{transform:translateY(-2px);filter:brightness(1.06);}
.btn:active{transform:translateY(0);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;transform:none;pointer-events:none;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-btn);}
.btn-primary:hover{color:#fff;}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text);}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-text{color:var(--cyan);font-weight:700;text-decoration:underline;text-underline-offset:3px;}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
  font-variant-numeric:tabular-nums;
}
.badge-gold{background:rgba(255,194,75,.16);color:var(--gold);}
.badge-cyan{background:rgba(46,230,198,.14);color:var(--cyan);}
.badge-purple{background:rgba(147,108,255,.18);color:#C4B0FF;}
.badge-dark{background:rgba(10,8,23,.72);color:#fff;}
.tag{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  background:rgba(255,255,255,.06);color:var(--text-2);font-size:12px;
}

/* ============ hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:72px 0 88px;
  background:
    radial-gradient(circle at 82% 16%, rgba(193,59,255,.20), transparent 46%),
    radial-gradient(circle at 10% 82%, rgba(46,230,198,.13), transparent 44%),
    var(--bg);
}
.hero::after{
  content:"";position:absolute;right:-180px;top:-140px;width:640px;height:640px;
  border-radius:50%;border:1px solid rgba(255,255,255,.07);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;z-index:1;}
.hero-tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;margin-bottom:20px;
  border-radius:999px;background:rgba(46,230,198,.10);border:1px solid rgba(46,230,198,.28);
  color:var(--cyan);font-size:13px;font-weight:700;letter-spacing:.02em;
}
.hero h1{font-size:48px;line-height:1.22;margin-bottom:18px;}
.hero-sub{font-size:17px;color:var(--text-2);line-height:1.9;max-width:560px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;}
.hero-stats li{
  display:inline-flex;align-items:baseline;gap:6px;height:38px;padding:0 16px;
  border-radius:999px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
}
.hero-stats b{
  font-size:16px;font-weight:800;font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,#2EE6C6,#FFC24B);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-stats span{font-size:13px;color:var(--text-3);}
.hero-visual{display:flex;justify-content:center;}
.phone-card{
  position:relative;width:min(330px,100%);aspect-ratio:9/16;
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.10);box-shadow:var(--sh-card);background:var(--card-a);
}
.phone-card img{width:100%;height:100%;object-fit:cover;}
.phone-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(13,10,28,.94),rgba(13,10,28,.05) 58%);
}
.phone-overlay{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:2;
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
}
.phone-overlay h3{width:100%;font-size:18px;margin-top:6px;}

/* ============ section shell ============ */
.section{padding:96px 0;position:relative;}
.section.alt-bg{background:var(--bg-a);}
.section.alt-bg-2{background:var(--bg-b);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;
}
.section-head h2{font-size:32px;}
.section-sub{font-size:15px;color:var(--text-3);margin-top:10px;line-height:1.8;}
.slider-btns{display:flex;gap:10px;flex:0 0 auto;}
.sbtn{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.14);background:transparent;
  color:var(--text-2);font-size:18px;line-height:1;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.sbtn:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px);}

/* ============ reel ============ */
.reel-track{
  display:flex;gap:20px;overflow-x:auto;padding:4px 4px 16px;
  scroll-snap-type:x mandatory;overscroll-behavior:contain;scrollbar-width:none;
}
.reel-track::-webkit-scrollbar{display:none;}
.reel-card{flex:0 0 220px;scroll-snap-align:start;}
.reel-media{
  position:relative;aspect-ratio:9/16;border-radius:24px;overflow:hidden;
  background:var(--card-a);box-shadow:var(--sh-card);
  transition:transform .25s ease,box-shadow .25s ease;
}
.reel-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.reel-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(13,10,28,.92),rgba(13,10,28,.12) 52%,transparent 72%);
}
.reel-card:hover .reel-media{
  transform:translateY(-3px);
  box-shadow:var(--sh-card),0 0 0 1px rgba(46,230,198,.35);
}
.reel-card:hover .reel-media img{transform:scale(1.06);}
.reel-play{
  position:absolute;left:50%;top:50%;width:48px;height:48px;border-radius:50%;
  background:rgba(10,8,23,.62);border:1px solid rgba(255,255,255,.3);
  transform:translate(-50%,-50%) scale(.82);opacity:0;z-index:2;
  transition:opacity .25s ease,transform .25s ease;
}
.reel-play::before{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-38%,-50%);
  border-left:12px solid #fff;border-top:8px solid transparent;border-bottom:8px solid transparent;
}
.reel-card:hover .reel-play{opacity:1;transform:translate(-50%,-50%) scale(1);}
.reel-overlay{position:absolute;left:16px;right:16px;bottom:16px;z-index:2;}
.reel-overlay h3{font-size:16px;line-height:1.5;margin:10px 0 8px;}
.reel-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-2);}

/* ============ picks ============ */
.picks{display:grid;grid-template-columns:1fr 1fr;gap:0 44px;}
.pick{
  display:grid;grid-template-columns:auto 84px 1fr auto;gap:18px;align-items:center;
  padding:22px 0;border-bottom:1px solid var(--line-2);
}
.pick-num{
  font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.pick-thumb{width:84px;aspect-ratio:3/4;border-radius:var(--r-sm);overflow:hidden;background:var(--card-a);}
.pick-thumb img{width:100%;height:100%;object-fit:cover;}
.pick-body h3{font-size:17px;margin-bottom:6px;}
.pick-body p{
  font-size:14px;color:var(--text-3);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pick-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
.pick-data{text-align:right;flex:0 0 auto;}
.pick-data b{display:block;font-size:18px;font-weight:800;color:var(--gold);font-variant-numeric:tabular-nums;}
.pick-data span{font-size:12px;color:var(--text-3);}

/* ============ latest (cms) ============ */
.latest-grid{display:grid;grid-template-columns:1.12fr 1fr;gap:32px;align-items:start;}
.latest-feature{
  border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(150deg,var(--card-a),var(--card-b));
  border:1px solid rgba(255,255,255,.07);box-shadow:var(--sh-card);
  transition:transform .25s ease,box-shadow .25s ease;
}
.latest-feature:hover{transform:translateY(-3px);box-shadow:var(--sh-card),0 0 0 1px rgba(46,230,198,.35);}
.feature-link{display:block;color:inherit;}
.feature-link:hover{color:inherit;}
.feature-cover{aspect-ratio:16/9;overflow:hidden;background:var(--bg-b);}
.feature-cover img{width:100%;height:100%;object-fit:cover;}
.feature-body{padding:24px 26px 28px;}
.feature-body h3{font-size:22px;line-height:1.45;margin:14px 0 12px;}
.feature-body p{
  font-size:15px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.feature-meta{display:flex;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.latest-list li+li{border-top:1px solid var(--line-2);}
.latest-item a{display:block;padding:20px 4px;color:inherit;}
.latest-item a:hover{color:inherit;}
.latest-item h3{
  font-size:17px;margin:10px 0 8px;transition:color .2s ease;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.latest-item a:hover h3{color:var(--cyan);}
.latest-item p{
  font-size:14px;color:var(--text-3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.latest-item time{display:block;font-size:13px;color:var(--text-3);margin-top:10px;font-variant-numeric:tabular-nums;}
.empty-state{
  text-align:center;padding:64px 24px;border-radius:var(--r-lg);
  border:1px dashed rgba(255,255,255,.14);background:rgba(255,255,255,.02);
}
.empty-ico{width:52px;height:52px;margin:0 auto 18px;color:var(--gold);}
.empty-state p{color:var(--text-2);margin-bottom:22px;}

/* ============ reviews ============ */
.review-section{
  background-image:linear-gradient(rgba(19,15,40,.93),rgba(19,15,40,.97)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.review-track{
  display:flex;gap:20px;overflow-x:auto;padding-bottom:14px;
  overscroll-behavior:contain;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 320px;padding:22px;border-radius:var(--r-md);
  background:linear-gradient(150deg,var(--card-a),var(--card-b));
  border:1px solid rgba(255,255,255,.07);
  transition:transform .25s ease,box-shadow .25s ease;
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--sh-card),0 0 0 1px rgba(46,230,198,.35);}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:42px;height:42px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;
  background:var(--grad);color:#fff;font-weight:800;font-size:16px;
}
.review-name{font-size:15px;font-weight:700;}
.review-time{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.stars{display:flex;gap:2px;margin-bottom:12px;color:var(--gold);font-size:14px;letter-spacing:1px;}
.review-card p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ============ cta ============ */
.cta-bar{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(91,59,246,.94),rgba(193,59,255,.84));
}
.cta-bar::after{
  content:"";position:absolute;right:-70px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.18),transparent 70%);pointer-events:none;
}
.cta-copy{position:relative;z-index:1;}
.cta-copy h2{font-size:26px;margin-bottom:10px;}
.cta-copy p{font-size:15px;color:rgba(255,255,255,.88);line-height:1.8;}
.cta-bar .btn{position:relative;z-index:1;background:#fff;color:#3A1E9E;box-shadow:0 10px 26px rgba(11,8,30,.35);}
.cta-bar .btn:hover{color:#3A1E9E;}

/* ============ faq ============ */
.faq{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  border-radius:18px;overflow:hidden;position:relative;
  background:linear-gradient(150deg,var(--card-a),var(--card-b));
  border:1px solid rgba(255,255,255,.08);
  transition:border-color .2s ease;
}
.faq-item.open{border-color:rgba(46,230,198,.35);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;text-align:left;
  font-size:17px;font-weight:700;color:var(--text);line-height:1.6;
}
.faq-q:focus-visible{outline:2px solid var(--cyan);outline-offset:-4px;}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--cyan);border-radius:2px;
  transition:transform .18s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s ease;}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;position:relative;}
.faq-item.open .faq-a-inner::before{
  content:"";position:absolute;left:18px;top:2px;bottom:24px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,#5B3BF6,#C13BFF);
}
.faq-a p{padding:0 22px 22px 32px;font-size:15px;color:var(--text-2);line-height:1.85;}

/* ============ footer ============ */
.site-footer{position:relative;background:var(--footer);padding:72px 0 0;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,#5B3BF6,#C13BFF,transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand-mark{width:34px;height:34px;margin-bottom:14px;}
.footer-brand .brand-name{display:block;font-size:18px;font-weight:800;}
.footer-brand p{font-size:14px;color:var(--text-3);margin-top:14px;max-width:340px;line-height:1.85;}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text);}
.footer-col li+li{margin-top:12px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding:22px 0;border-top:1px solid rgba(255,255,255,.06);
  font-size:13px;color:var(--text-3);
}

/* ============ responsive ============ */
@media (max-width:1279px){
  .hero h1{font-size:42px;}
}
@media (max-width:1023px){
  .hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero h1{font-size:36px;}
  .hero-sub{font-size:16px;}
  .hero-visual{order:-1;}
  .phone-card{width:min(300px,72vw);}
  .section{padding:72px 0;}
  .section-head h2{font-size:26px;}
  .picks{grid-template-columns:1fr;gap:0;}
  .latest-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-bar{padding:32px;}
  .cta-copy h2{font-size:22px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .header-top-inner{height:56px;gap:12px;}
  .brand-name{font-size:15px;}
  .search-box{display:none;}
  .header-actions{margin-left:auto;}
  .header-actions .btn-primary{display:none;}
  .nav-toggle{display:flex;}
  .channel-nav{display:none;border-top:0;}
  .site-header.nav-open .channel-nav{display:block;border-top:1px solid rgba(255,255,255,.06);}
  .site-header.nav-open .channel-inner{
    flex-direction:column;align-items:stretch;height:auto;
    padding:12px 0 18px;overflow:visible;
  }
  .site-header.nav-open .pill{height:42px;border-radius:var(--r-sm);padding:0 16px;}
  .hero{padding:40px 0 56px;}
  .hero h1{font-size:30px;line-height:1.3;}
  .hero-sub{font-size:15px;margin-bottom:24px;}
  .hero-cta{margin-bottom:28px;}
  .hero-stats li{height:34px;padding:0 13px;}
  .hero::after{width:420px;height:420px;right:-160px;top:-120px;}
  .phone-card{width:78vw;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:26px;}
  .section-head h2{font-size:24px;}
  .section-sub{font-size:14px;}
  .slider-btns{display:none;}
  .reel-card{flex:0 0 168px;}
  .reel-overlay h3{font-size:15px;}
  .pick{grid-template-columns:auto 68px 1fr;gap:14px;padding:18px 0;}
  .pick-thumb{width:68px;}
  .pick-data{display:none;}
  .pick-num{font-size:20px;}
  .feature-body{padding:20px 18px 24px;}
  .feature-body h3{font-size:19px;}
  .review-card{flex:0 0 282px;}
  .cta-bar{flex-direction:column;align-items:flex-start;gap:22px;padding:26px 22px;border-radius:22px;}
  .cta-copy h2{font-size:20px;}
  .faq-q{font-size:16px;padding:17px 18px;}
  .faq-a p{padding:0 18px 20px 30px;}
  .faq-item.open .faq-a-inner::before{left:15px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .site-footer{padding:52px 0 0;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:480px){
  .hero h1{font-size:26px;}
  .hero-stats{gap:8px;}
  .hero-stats li{height:32px;padding:0 11px;font-size:13px;}
  .hero-stats b{font-size:15px;}
  .reel-card{flex:0 0 148px;}
  .review-card{flex:0 0 262px;}
  .btn{height:44px;padding:0 20px;font-size:14px;}
  .latest-feature{border-radius:22px;}
}

/* roulang page: article */
:root{
  --bg:#0D0A1C;
  --bg-alt:#130F28;
  --bg-alt2:#171334;
  --footer-bg:#0A0817;
  --card:#1B1636;
  --card-2:#221A44;
  --input:#14102A;
  --brand-1:#5B3BF6;
  --brand-2:#C13BFF;
  --cyan:#2EE6C6;
  --gold:#FFC24B;
  --red:#FF5A6E;
  --text:#F5F3FF;
  --text-2:#B9B2D8;
  --text-3:#7F78A0;
  --line:rgba(255,255,255,.06);
  --line-2:rgba(255,255,255,.14);
  --grad:linear-gradient(120deg,#5B3BF6 0%,#C13BFF 100%);
  --grad-soft:linear-gradient(120deg,rgba(91,59,246,.18),rgba(193,59,255,.14));
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --shadow:0 18px 44px rgba(11,8,30,.55);
  --shadow-btn:0 10px 26px rgba(91,59,246,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:108px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--cyan);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--gold)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0}
.num{font-variant-numeric:tabular-nums;font-weight:700}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(13,10,28,.94);border-bottom:1px solid transparent;transition:background .25s var(--ease),border-color .25s var(--ease)}
.site-header.is-scrolled{background:rgba(9,7,20,.98);border-bottom-color:var(--line)}
.header-top-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--grad);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(91,59,246,.4)}
.brand-mark svg{width:18px;height:18px}
.brand-name{font-size:17px;font-weight:800;white-space:nowrap}
.search-box{position:relative;display:flex;align-items:center;width:320px;max-width:100%;margin-left:auto}
.search-ico{position:absolute;left:12px;width:17px;height:17px;color:var(--text-3);pointer-events:none}
.search-box input{width:100%;height:42px;padding:0 14px 0 38px;border-radius:var(--r-sm);background:var(--input);border:1px solid var(--line-2);color:var(--text);font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(46,230,198,.16)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-2);flex-direction:column;align-items:center;justify-content:center;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.channel-nav{border-top:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:10px;height:44px;overflow-x:auto;overscroll-behavior:contain;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.pill{flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 15px;border-radius:999px;font-size:14px;color:var(--text-2);border:1px solid var(--line-2);background:transparent;transition:all .2s var(--ease)}
.pill:hover{color:var(--text);border-color:var(--cyan)}
.pill.active{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 8px 20px rgba(91,59,246,.35)}

/* ---------- buttons / badges ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:700;border:1px solid transparent;transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-btn)}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--text)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn:hover{transform:translateY(-2px);filter:brightness(1.06);color:#fff}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:.45;pointer-events:none;transform:none}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;border-radius:999px;font-size:13px;line-height:1;font-weight:600;white-space:nowrap}
.badge-purple{background:rgba(91,59,246,.2);color:#C9B8FF}
.badge-cyan{background:rgba(46,230,198,.16);color:var(--cyan)}
.badge-gold{background:rgba(255,194,75,.16);color:var(--gold)}
.badge-dark{background:rgba(10,8,23,.72);color:#fff}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;font-size:13px;color:var(--text-2);border:1px solid var(--line-2);transition:all .2s var(--ease)}
.tag:hover{border-color:var(--cyan);color:var(--cyan)}

/* ---------- layout ---------- */
main{padding-top:26px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px;color:var(--text-3)}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--cyan)}
.crumbs .sep{color:rgba(255,255,255,.22)}
.crumbs .cur{color:var(--text-2);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{margin:18px 0 26px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.article-head h1{font-size:40px;line-height:1.28;margin-bottom:16px;overflow-wrap:anywhere}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.2)}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:44px;align-items:start;padding-bottom:20px}
.article-main{min-width:0}
.article-body{max-width:780px;color:var(--text-2)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 18px;line-height:1.9}
.article-body h2{position:relative;font-size:24px;color:var(--text);margin:38px 0 16px;padding-left:15px}
.article-body h2::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:4px;background:var(--grad)}
.article-body h3{font-size:20px;color:var(--cyan);margin:28px 0 12px}
.article-body h4{font-size:17px;color:var(--text);margin:22px 0 10px}
.article-body a{border-bottom:1px solid rgba(46,230,198,.4)}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:0}
.article-body ul{list-style:none}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.85}
.article-body ul li::before{content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:2px;background:var(--grad);transform:rotate(45deg)}
.article-body ol{padding-left:24px}
.article-body ol li{margin-bottom:10px;line-height:1.85}
.article-body ol li::marker{color:var(--cyan);font-weight:700}
.article-body img{border-radius:16px;margin:22px 0;background:#14102A}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;line-height:1.7}
.article-body blockquote{margin:22px 0;padding:16px 20px 16px 22px;border-left:4px solid;border-image:var(--grad) 1;background:rgba(91,59,246,.08);border-radius:0 16px 16px 0;color:var(--text);line-height:1.85}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:22px 0;border-radius:16px;background:var(--card);font-size:14px}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.article-body th{color:var(--text);background:rgba(91,59,246,.12);font-weight:700}
.article-body td{color:var(--text-2)}
.article-body pre{margin:22px 0;padding:18px 20px;border-radius:16px;background:#080616;border:1px solid var(--line);overflow-x:auto;font-size:13.5px;line-height:1.7}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--cyan);background:rgba(46,230,198,.1);padding:2px 6px;border-radius:6px;font-size:14px}
.article-body pre code{background:none;padding:0;color:var(--text-2)}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:calc(var(--header-h) + 20px);display:grid;gap:20px}
.side-card{background:linear-gradient(160deg,var(--card),var(--card-2));border:1px solid var(--line);border-radius:var(--r-md);padding:20px;box-shadow:var(--shadow)}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:15px;border-radius:4px;background:var(--grad)}
.toc-list{list-style:none;display:grid;gap:2px}
.toc-list a{display:block;font-size:14px;color:var(--text-2);padding:8px 10px;border-radius:10px;border-left:2px solid transparent;transition:all .2s var(--ease);line-height:1.6}
.toc-list a:hover{background:rgba(91,59,246,.14);color:var(--text);border-left-color:var(--cyan)}
.toc-list li.lv-3 a{padding-left:24px;font-size:13.5px;color:var(--text-3)}
.toc-empty{font-size:13.5px;color:var(--text-3);line-height:1.75}
.entry-list{list-style:none;display:grid;gap:8px}
.entry-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.03);font-size:14px;color:var(--text-2)}
.entry-list a:hover{background:rgba(46,230,198,.1);color:var(--cyan)}
.entry-list a span{font-size:12px;color:var(--text-3)}
.mini-list{list-style:none;display:grid;gap:14px}
.mini-list li{display:flex;gap:12px;align-items:flex-start}
.mini-list img{width:76px;height:56px;object-fit:cover;border-radius:12px;flex:0 0 auto;background:#14102A}
.mini-list a.title{font-size:14.5px;color:var(--text);font-weight:600;line-height:1.6;display:block}
.mini-list a.title:hover{color:var(--cyan)}
.mini-list .sub{font-size:12.5px;color:var(--text-3);margin-top:4px;display:block}

/* ---------- empty / skeleton ---------- */
.empty-state{display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;padding:56px 24px;border-radius:var(--r-lg);background:linear-gradient(160deg,var(--card),var(--card-2));border:1px solid var(--line)}
.empty-state .ico{width:56px;height:56px;border-radius:50%;background:rgba(255,90,110,.14);display:flex;align-items:center;justify-content:center;color:var(--red);font-size:24px}
.empty-state h2{font-size:20px}
.empty-state p{color:var(--text-2);font-size:15px;max-width:44ch}
.sk-row{display:grid;gap:12px}
.sk{height:16px;border-radius:8px;background:linear-gradient(90deg,rgba(255,255,255,.06),rgba(255,255,255,.12),rgba(255,255,255,.06));background-size:200% 100%;animation:sk 1.4s infinite linear}
.sk.w70{width:70%}.sk.w45{width:45%}.sk.w90{width:90%}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- sections ---------- */
.section{margin-top:72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head h2{font-size:26px}
.section-head .more{font-size:14px;color:var(--cyan)}
.section-head .more:hover{color:var(--gold)}
.section-sub{color:var(--text-3);font-size:14px;margin-top:6px}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:34px 0 8px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.related-card{display:flex;flex-direction:column;background:linear-gradient(160deg,var(--card),var(--card-2));border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.related-card:hover{transform:translateY(-3px);border-color:rgba(46,230,198,.35);box-shadow:var(--shadow),0 0 0 1px rgba(46,230,198,.35)}
.related-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#14102A}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.related-card:hover .thumb img{transform:scale(1.05)}
.related-card .thumb .badge{position:absolute;left:12px;top:12px}
.related-card .body{padding:16px 18px 18px}
.related-card h3{font-size:16.5px;line-height:1.55;margin-bottom:8px}
.related-card h3 a{color:var(--text)}
.related-card h3 a:hover{color:var(--cyan)}
.related-card .desc{font-size:13.5px;color:var(--text-3);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card .meta{display:flex;gap:10px;align-items:center;margin-top:12px;font-size:12.5px;color:var(--text-3)}

.dual-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.dual-card{display:flex;align-items:center;gap:16px;padding:20px 22px;border-radius:var(--r-md);border:1px solid var(--line);background:linear-gradient(160deg,var(--card),var(--card-2));transition:transform .22s var(--ease),border-color .22s var(--ease)}
.dual-card:hover{transform:translateY(-3px);border-color:rgba(46,230,198,.35)}
.dual-card .arrow{width:42px;height:42px;border-radius:14px;background:var(--grad-soft);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--cyan);flex:0 0 auto}
.dual-card h3{font-size:16.5px;margin-bottom:4px;color:var(--text)}
.dual-card p{font-size:13.5px;color:var(--text-3)}

.quote-track{display:flex;gap:18px;overflow-x:auto;overscroll-behavior:contain;scrollbar-width:none;padding:4px 0 8px;scroll-snap-type:x proximity}
.quote-track::-webkit-scrollbar{display:none}
.quote-card{flex:0 0 auto;width:320px;scroll-snap-align:start;background:linear-gradient(160deg,var(--card),var(--card-2));border:1px solid var(--line);border-radius:var(--r-md);padding:20px}
.quote-card .top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:15px;flex:0 0 auto}
.quote-card .nick{font-size:14.5px;font-weight:700}
.quote-card .stars{color:var(--gold);font-size:13px;letter-spacing:2px}
.quote-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.quote-card .time{display:block;margin-top:10px;font-size:12.5px;color:var(--text-3)}

.cta-band{margin-top:72px;border-radius:var(--r-xl);background:var(--grad);padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:0 24px 60px rgba(91,59,246,.35)}
.cta-band h2{font-size:26px;color:#fff;margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.85);font-size:15px;max-width:60ch}
.cta-band .btn{background:#0D0A1C;color:#fff;box-shadow:0 12px 30px rgba(10,8,23,.5)}
.cta-band .btn:hover{color:#fff}

.to-top{position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-btn);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s var(--ease);z-index:70}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}

/* ---------- footer ---------- */
.site-footer{margin-top:96px;background:var(--footer-bg);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:56px 24px 36px}
.footer-brand .brand-mark{margin-bottom:12px}
.footer-brand .brand-name{display:block;font-size:17px;font-weight:800;margin-bottom:12px}
.footer-brand p{font-size:13.5px;color:var(--text-3);line-height:1.85;max-width:42ch}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--text)}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:13.5px;color:var(--text-3)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:18px 24px 30px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-layout{gap:32px;grid-template-columns:minmax(0,1fr) 300px}
  .article-head h1{font-size:34px}
}
@media (max-width:1023px){
  :root{--header-h:104px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-aside{position:static;order:2}
  .article-body{max-width:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left}
}
@media (max-width:767px){
  :root{--header-h:100px}
  .container{padding:0 18px}
  .search-box{display:none}
  .nav-toggle{display:flex}
  .header-top-inner{height:56px}
  .brand-name{font-size:15.5px}
  .channel-nav{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
  .channel-nav.is-open{max-height:240px;overflow-y:auto}
  .channel-inner{height:auto;flex-direction:column;align-items:stretch;gap:8px;padding:10px 0 14px;overflow:visible}
  .pill{justify-content:center}
  main{padding-top:18px}
  .article-head h1{font-size:27px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .dual-grid{grid-template-columns:minmax(0,1fr)}
  .quote-card{width:280px}
  .section{margin-top:48px}
  .section-head h2{font-size:22px}
  .cta-band{padding:26px;border-radius:24px}
  .cta-band h2{font-size:21px}
  .to-top{right:16px;bottom:18px}
  .footer-grid{grid-template-columns:minmax(0,1fr);padding:40px 18px 26px}
  .footer-bottom{padding:16px 18px 26px}
}
@media (max-width:480px){
  .article-head h1{font-size:24px}
  .quote-card{width:250px}
  .mini-list img{width:64px;height:48px}
}

/* roulang page: category1 */
:root{
  --brand-1:#5B3BF6;
  --brand-2:#C13BFF;
  --cyan:#2EE6C6;
  --amber:#FFC24B;
  --red:#FF5A6E;
  --bg:#0D0A1C;
  --bg-alt:#130F28;
  --bg-alt2:#171334;
  --card-1:#1B1636;
  --card-2:#221A44;
  --footer-bg:#0A0817;
  --text:#F5F3FF;
  --text-2:#B9B2D8;
  --text-3:#7F78A0;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --r-lg:26px;
  --r-md:20px;
  --r-sm:14px;
  --sh-card:0 18px 44px rgba(11,8,30,.55);
  --sh-btn:0 10px 26px rgba(91,59,246,.45);
  --container:1280px;
  --grad-brand:linear-gradient(120deg,#5B3BF6 0%,#C13BFF 100%);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--amber);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.35;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-weight:700;}

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

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:15px;line-height:1;
  padding:13px 24px;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-btn);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong);}
.btn-ghost:hover{color:var(--cyan);border-color:var(--cyan);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-weight:700;font-size:14px;border-bottom:1px solid rgba(46,230,198,.4);padding-bottom:2px;}
.btn-link:hover{color:var(--amber);border-color:rgba(255,194,75,.5);}
.btn[disabled]{opacity:.45;pointer-events:none;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;font-weight:700;line-height:1.4;
  background:rgba(91,59,246,.18);color:#C9B8FF;border:1px solid rgba(91,59,246,.35);
}
.badge-cyan{background:rgba(46,230,198,.14);color:var(--cyan);border-color:rgba(46,230,198,.3);}
.badge-amber{background:rgba(255,194,75,.14);color:var(--amber);border-color:rgba(255,194,75,.32);}
.badge-soft{background:rgba(255,255,255,.06);color:var(--text-2);border-color:var(--line);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(13,10,28,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{
  background:rgba(10,8,23,.97);
  border-bottom-color:var(--line);
  box-shadow:0 12px 32px rgba(6,4,18,.6);
}
.header-top{height:64px;display:flex;align-items:center;}
.header-top-inner{display:flex;align-items:center;gap:22px;width:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad-brand);box-shadow:0 8px 20px rgba(91,59,246,.4);
}
.brand-mark svg{width:18px;height:18px;}
.brand-name{font-size:17px;letter-spacing:-.01em;white-space:nowrap;}

.search-box{
  position:relative;display:flex;align-items:center;
  width:320px;max-width:100%;margin-left:auto;
  background:#14102A;border:1px solid var(--line-strong);border-radius:var(--r-sm);
  padding:0 14px;height:42px;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(46,230,198,.14);}
.search-ico{width:17px;height:17px;color:var(--text-3);flex:0 0 auto;}
.search-box input{
  flex:1;background:none;border:0;outline:none;color:var(--text);
  font-size:14px;padding:0 10px;height:100%;
}
.search-box input::placeholder{color:var(--text-3);}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.03);
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
  transition:border-color .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .22s ease,opacity .22s ease;}
.nav-toggle:hover{border-color:var(--cyan);}

.channel-nav{border-top:1px solid var(--line);height:44px;display:flex;align-items:center;background:rgba(19,15,40,.6);}
.channel-inner{
  display:flex;align-items:center;gap:10px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;overscroll-behavior:contain;
  padding-top:6px;padding-bottom:6px;
}
.channel-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;
  padding:7px 16px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--text-2);border:1px solid var(--line-strong);background:transparent;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .18s ease;
}
.pill:hover{color:var(--text);border-color:rgba(46,230,198,.5);transform:translateY(-1px);}
.pill.active{background:var(--grad-brand);border-color:transparent;color:#fff;box-shadow:0 8px 20px rgba(91,59,246,.36);}

/* ---------- category hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(13,10,28,.72) 0%,rgba(13,10,28,.92) 62%,var(--bg) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 260px at 12% 8%,rgba(91,59,246,.34),transparent 70%),
    radial-gradient(520px 240px at 88% 24%,rgba(193,59,255,.22),transparent 72%);
}
.cat-hero-inner{position:relative;z-index:2;padding:66px 0 58px;max-width:860px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{color:var(--text-3);}
.cat-hero h1{font-size:48px;line-height:1.22;margin-bottom:18px;}
.cat-hero h1 em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}
.cat-lede{font-size:16px;color:var(--text-2);max-width:680px;line-height:1.9;}
.stat-pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.stat-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;font-size:13px;
  background:rgba(27,22,54,.78);border:1px solid var(--line-strong);color:var(--text-2);
}
.stat-pill b{color:var(--text);font-size:15px;}
.stat-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);}
.stat-pill.yellow .dot{background:var(--amber);}
.stat-pill.purple .dot{background:#9B7BFF;}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section.alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section.alt2{background:var(--bg-alt2);border-bottom:1px solid var(--line);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:34px;}
.section-title{font-size:32px;line-height:1.3;position:relative;padding-left:18px;}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad-brand);
}
.section-sub{font-size:14px;color:var(--text-3);max-width:560px;margin-top:8px;}
.section-head .side{font-size:14px;color:var(--text-3);}

/* ---------- filter bar ---------- */
.filter-bar{
  display:flex;align-items:center;gap:10px;flex-wrap:nowrap;
  overflow-x:auto;scrollbar-width:none;overscroll-behavior:contain;
  padding:14px 4px 20px;margin-bottom:8px;
}
.filter-bar::-webkit-scrollbar{display:none;}
.filter-pill{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--text-2);border:1px solid var(--line-strong);background:rgba(27,22,54,.6);
  transition:all .2s ease;
}
.filter-pill:hover{color:var(--text);border-color:rgba(46,230,198,.55);transform:translateY(-1px);}
.filter-pill.active{background:var(--grad-brand);border-color:transparent;color:#fff;box-shadow:0 8px 20px rgba(91,59,246,.35);}

/* ---------- video wall ---------- */
.video-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.v-card{
  display:flex;flex-direction:column;border-radius:var(--r-md);overflow:hidden;
  background:linear-gradient(160deg,var(--card-1),var(--card-2));
  border:1px solid var(--line);box-shadow:var(--sh-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  color:var(--text);
}
.v-card:hover{transform:translateY(-3px);border-color:rgba(46,230,198,.35);color:var(--text);box-shadow:var(--sh-card),0 0 0 1px rgba(46,230,198,.2);}
.v-card.hide{display:none;}
.v-thumb{position:relative;aspect-ratio:9/16;overflow:hidden;background:#161232;}
.v-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.v-card:hover .v-thumb img{transform:scale(1.04);}
.v-time{
  position:absolute;top:10px;right:10px;z-index:3;
  padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(9,6,22,.82);color:#fff;border:1px solid rgba(255,255,255,.16);
  font-variant-numeric:tabular-nums;
}
.v-hot{
  position:absolute;top:10px;left:10px;z-index:3;
  padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(255,194,75,.16);color:var(--amber);border:1px solid rgba(255,194,75,.4);
  font-variant-numeric:tabular-nums;
}
.v-overlay{
  position:absolute;left:0;right:0;bottom:0;z-index:2;padding:44px 14px 14px;
  background:linear-gradient(180deg,rgba(9,6,22,0) 0%,rgba(9,6,22,.86) 62%,rgba(9,6,22,.96) 100%);
}
.v-overlay h3{font-size:17px;line-height:1.45;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.v-play{
  position:absolute;top:50%;left:50%;z-index:4;
  width:52px;height:52px;border-radius:50%;transform:translate(-50%,-50%) scale(.86);
  display:flex;align-items:center;justify-content:center;
  background:var(--grad-brand);color:#fff;font-size:16px;opacity:0;
  box-shadow:0 12px 30px rgba(91,59,246,.55);
  transition:opacity .22s ease,transform .22s ease;
}
.v-card:hover .v-play,.v-card:focus-visible .v-play{opacity:1;transform:translate(-50%,-50%) scale(1);}
.v-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px 16px;}
.v-meta .tags{display:flex;gap:6px;flex-wrap:wrap;}
.v-meta .tag{font-size:12px;padding:3px 9px;border-radius:999px;background:rgba(46,230,198,.12);color:var(--cyan);border:1px solid rgba(46,230,198,.26);}
.v-meta .views{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;white-space:nowrap;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  position:relative;border-radius:var(--r-md);padding:26px 22px 24px;
  background:linear-gradient(160deg,var(--card-1),var(--card-2));
  border:1px solid var(--line);box-shadow:var(--sh-card);
  transition:transform .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-3px);border-color:rgba(46,230,198,.3);}
.step-no{
  font-size:26px;font-weight:800;line-height:1;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;margin-bottom:14px;display:block;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--text-2);line-height:1.85;}

/* ---------- metric cards ---------- */
.metric-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:22px;}
.metric-card{
  border-radius:var(--r-lg);padding:28px 26px;
  background:linear-gradient(160deg,var(--card-1),var(--card-2));
  border:1px solid var(--line);box-shadow:var(--sh-card);
  display:flex;flex-direction:column;gap:14px;
  transition:transform .22s ease,border-color .22s ease;
}
.metric-card:hover{transform:translateY(-3px);border-color:rgba(46,230,198,.3);}
.metric-card.lead{background:linear-gradient(155deg,rgba(91,59,246,.28),rgba(193,59,255,.14) 58%,var(--card-2));border-color:rgba(91,59,246,.4);}
.metric-card h3{font-size:20px;}
.metric-card p{font-size:14px;color:var(--text-2);line-height:1.85;}
.metric-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);}
.metric-row:last-of-type{border-bottom:0;}
.metric-row .k{font-size:14px;color:var(--text-3);}
.metric-row .v{font-size:16px;color:var(--text);font-variant-numeric:tabular-nums;font-weight:700;}
.metric-row .v.up{color:var(--cyan);}
.metric-row .v.gold{color:var(--amber);}

/* ---------- reviews ---------- */
.review-track{
  display:flex;gap:20px;overflow-x:auto;scrollbar-width:none;overscroll-behavior:contain;
  padding:4px 2px 10px;
}
.review-track::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 326px;border-radius:var(--r-md);padding:22px;
  background:linear-gradient(160deg,var(--card-1),var(--card-2));
  border:1px solid var(--line);box-shadow:var(--sh-card);
  transition:transform .22s ease,border-color .22s ease;
}
.review-card:hover{transform:translateY(-3px);border-color:rgba(46,230,198,.28);}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.avatar{
  width:42px;height:42px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;color:#fff;
  background:var(--grad-brand);
}
.review-top .who{font-size:15px;font-weight:700;}
.review-top .when{font-size:12px;color:var(--text-3);}
.stars{color:var(--amber);font-size:13px;letter-spacing:2px;margin-bottom:8px;}
.review-card p{font-size:14px;color:var(--text-2);line-height:1.85;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  border-radius:18px;border:1px solid var(--line);
  background:linear-gradient(160deg,var(--card-1),var(--card-2));
  overflow:hidden;position:relative;transition:border-color .22s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad-brand);opacity:0;transition:opacity .22s ease;
}
.faq-item.open{border-color:rgba(46,230,198,.3);}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:17px;font-weight:700;color:var(--text);
}
.faq-q .ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
  background:rgba(255,255,255,.06);color:var(--cyan);
  transition:transform .18s ease,background .18s ease;
}
.faq-item.open .ico{transform:rotate(180deg);background:rgba(46,230,198,.16);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 22px 22px;font-size:14.5px;color:var(--text-2);line-height:1.9;}

/* ---------- cta band ---------- */
.cta-band{
  border-radius:28px;padding:40px;
  background:linear-gradient(120deg,rgba(91,59,246,.9) 0%,rgba(193,59,255,.78) 100%);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 24px 60px rgba(91,59,246,.4);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),transparent 66%);
}
.cta-band h2{font-size:28px;color:#fff;margin-bottom:10px;}
.cta-band p{font-size:15px;color:rgba(255,255,255,.85);max-width:600px;}
.cta-band .actions{display:flex;gap:14px;flex:0 0 auto;position:relative;z-index:2;}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;}
.cta-band .btn-ghost:hover{border-color:#fff;color:#fff;}
.cta-band .btn-white{background:#fff;color:#3A1FBF;box-shadow:0 12px 28px rgba(12,6,40,.35);}
.cta-band .btn-white:hover{color:#3A1FBF;transform:translateY(-2px);filter:brightness(1.02);}

/* ---------- footer ---------- */
.site-footer{
  background:var(--footer-bg);border-top:1px solid var(--line);position:relative;padding-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(91,59,246,.8),rgba(193,59,255,.7),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:40px;
  padding:62px 24px 44px;
}
.footer-brand .brand-mark{margin-bottom:14px;}
.footer-brand .brand-name{display:block;font-size:17px;font-weight:800;margin-bottom:12px;}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.9;max-width:360px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 24px 28px;border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13px;color:var(--text-3);}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:80;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad-brand);color:#fff;font-size:18px;
  box-shadow:var(--sh-btn);opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{transform:translateY(-3px);color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .video-wall{gap:18px;}
  .metric-grid{grid-template-columns:1fr 1fr;gap:18px;}
  .metric-card.lead{grid-column:span 2;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .cat-hero-inner{padding:52px 0 46px;}
  .cat-hero h1{font-size:38px;}
  .section-title{font-size:27px;}
  .video-wall{grid-template-columns:repeat(3,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 24px 36px;}
  .search-box{width:250px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .header-top{height:56px;}
  .header-top-inner{gap:12px;}
  .brand-name{font-size:15.5px;}
  .search-box{display:none;}
  .nav-toggle{display:flex;}
  .channel-nav{
    position:fixed;left:0;right:0;top:56px;height:auto;display:none;
    background:rgba(13,10,28,.99);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    padding:14px 0 18px;box-shadow:0 24px 48px rgba(6,4,18,.7);z-index:95;
  }
  .channel-nav.open{display:block;}
  .channel-inner{flex-direction:column;align-items:stretch;gap:8px;padding:0 18px;}
  .pill{justify-content:center;padding:11px 16px;}
  .section{padding:48px 0;}
  .cat-hero-inner{padding:38px 0 36px;}
  .cat-hero h1{font-size:30px;}
  .cat-lede{font-size:15px;}
  .section-title{font-size:24px;padding-left:14px;}
  .section-title::before{width:3px;}
  .video-wall{grid-template-columns:repeat(2,1fr);gap:14px;}
  .v-overlay{padding:34px 11px 11px;}
  .v-overlay h3{font-size:14.5px;}
  .v-meta{padding:10px 11px 13px;flex-direction:column;align-items:flex-start;gap:6px;}
  .v-play{width:42px;height:42px;opacity:1;transform:translate(-50%,-50%) scale(.92);}
  .steps{grid-template-columns:1fr;gap:14px;}
  .metric-grid{grid-template-columns:1fr;gap:16px;}
  .metric-card.lead{grid-column:span 1;}
  .metric-card{padding:22px 20px;border-radius:var(--r-md);}
  .review-card{flex:0 0 268px;padding:18px;}
  .faq-q{font-size:15.5px;padding:16px 17px;}
  .faq-a p{padding:0 17px 18px;font-size:14px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px;border-radius:22px;gap:20px;}
  .cta-band h2{font-size:22px;}
  .cta-band .actions{flex-wrap:wrap;width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 18px 30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;padding:18px 18px 24px;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:480px){
  .cat-hero h1{font-size:27px;}
  .section-title{font-size:22px;}
  .btn{padding:12px 20px;font-size:14px;}
  .pill{font-size:13.5px;}
  .video-wall{gap:12px;}
}

/* roulang page: category2 */
:root{
  --bg:#0D0A1C;
  --bg-alt:#130F28;
  --bg-alt2:#171334;
  --card:#1B1636;
  --card-2:#221A44;
  --footer-bg:#0A0817;

  --purple:#5B3BF6;
  --magenta:#C13BFF;
  --cyan:#2EE6C6;
  --yellow:#FFC24B;
  --red:#FF5A6E;

  --text:#F5F3FF;
  --text-2:#B9B2D8;
  --text-3:#7F78A0;

  --line:rgba(255,255,255,.06);
  --line-2:rgba(255,255,255,.12);
  --edge:rgba(255,255,255,.18);

  --r-xl:28px;
  --r-lg:22px;
  --r-md:18px;
  --r-sm:14px;
  --r-pill:999px;

  --shadow-card:0 18px 44px rgba(11,8,30,.55);
  --shadow-primary:0 10px 26px rgba(91,59,246,.45);

  --grad:linear-gradient(120deg,#5B3BF6 0%,#C13BFF 100%);
  --grad-soft:linear-gradient(120deg,rgba(91,59,246,.22),rgba(193,59,255,.22));

  --sp-section:96px;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 88% -6%,rgba(193,59,255,.16),transparent 62%),
    radial-gradient(560px 380px at 4% 12%,rgba(91,59,246,.15),transparent 64%);
}
body>*{position:relative;z-index:1;}

img{max-width:100%;display:block;border:0;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--yellow);}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:8px;}
::selection{background:rgba(193,59,255,.4);color:#fff;}

.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,border-color .2s ease,color .2s ease,background-color .2s ease;
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:var(--shadow-primary);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border:1px solid var(--edge);
}
.btn-ghost:hover{
  color:var(--cyan);
  border-color:rgba(46,230,198,.65);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-lg{padding:16px 34px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  line-height:1.6;
  white-space:nowrap;
}
.badge-purple{background:rgba(91,59,246,.2);color:#C4B4FF;}
.badge-cyan{background:rgba(46,230,198,.16);color:var(--cyan);}
.badge-yellow{background:rgba(255,194,75,.18);color:var(--yellow);}
.badge-dark{background:rgba(13,10,28,.78);color:#F5F3FF;}
.badge-outline{background:transparent;border:1px solid var(--line-2);color:var(--text-2);}

.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  font-weight:600;
  color:var(--text-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}

.section{padding:var(--sp-section) 0;}
.section-alt{background:var(--bg-alt);}
.section-alt2{background:var(--bg-alt2);}
.section-head{margin-bottom:44px;max-width:760px;}
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
  margin-bottom:14px;
}
.section-kicker::before{
  content:"";
  width:26px;
  height:2px;
  border-radius:2px;
  background:var(--grad);
}
.section-head h2{
  font-size:32px;
  margin-bottom:14px;
}
.section-head h2 em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.section-head p{color:var(--text-2);font-size:16px;}

/* ============ 头部 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(13,10,28,.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,8,23,.97);
  border-bottom-color:var(--line);
  box-shadow:0 12px 34px rgba(6,4,16,.6);
}
.header-top-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;
  height:34px;
  flex-shrink:0;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:var(--grad);
  box-shadow:0 8px 20px rgba(91,59,246,.45);
}
.brand-mark svg{width:20px;height:20px;}
.brand-name{
  font-size:17px;
  font-weight:800;
  letter-spacing:.01em;
  white-space:nowrap;
}
.search-box{
  position:relative;
  display:flex;
  align-items:center;
  gap:9px;
  flex:0 1 320px;
  margin-left:auto;
  padding:0 14px;
  height:42px;
  background:#14102A;
  border:1px solid var(--line-2);
  border-radius:var(--r-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(46,230,198,.14);
}
.search-ico{width:17px;height:17px;flex-shrink:0;color:var(--text-3);}
.search-box input{
  flex:1;
  min-width:0;
  height:100%;
  border:0;
  background:transparent;
  color:var(--text);
  font-size:14px;
  outline:none;
}
.search-box input::placeholder{color:var(--text-3);}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line-2);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:17px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .22s ease,opacity .22s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.channel-nav{
  border-top:1px solid var(--line);
  background:rgba(19,15,40,.6);
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  overflow-x:auto;
  overscroll-behavior:contain;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.pill{
  display:inline-flex;
  align-items:center;
  padding:7px 17px;
  border-radius:var(--r-pill);
  font-size:14px;
  font-weight:600;
  color:var(--text-2);
  border:1px solid var(--line-2);
  background:transparent;
  white-space:nowrap;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.pill:hover{
  color:var(--cyan);
  border-color:rgba(46,230,198,.55);
  transform:translateY(-1px);
}
.pill.active{
  background:var(--grad);
  border-color:transparent;
  color:#fff;
  box-shadow:0 8px 18px rgba(91,59,246,.4);
}

/* ============ 分类页头 ============ */
.cat-hero{
  position:relative;
  padding:52px 0 68px;
  background:#100C24;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.24;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(560px 320px at 80% 0%,rgba(193,59,255,.24),transparent 66%),
    linear-gradient(180deg,rgba(13,10,28,.55) 0%,rgba(13,10,28,.94) 78%,var(--bg) 100%);
}
.cat-hero .container{position:relative;z-index:2;}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{opacity:.55;}

.cat-hero h1{
  font-size:48px;
  max-width:880px;
  margin-bottom:18px;
}
.cat-hero h1 em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cat-hero .lead{
  max-width:760px;
  color:var(--text-2);
  font-size:17px;
}
.cat-stats{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.stat-pill{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  padding:11px 18px;
  border-radius:var(--r-pill);
  background:rgba(27,22,54,.86);
  border:1px solid var(--line-2);
  font-size:13px;
  color:var(--text-3);
}
.stat-pill b{
  font-size:16px;
  font-weight:700;
  color:var(--text);
  font-variant-numeric:tabular-nums;
}

/* ============ 榜单 ============ */
.board-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:32px;
}
.board-head h2{font-size:32px;}
.board-head p{color:var(--text-2);margin-top:10px;max-width:600px;}
.board-legend{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.board{
  border-radius:var(--r-xl);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.board-cols{
  display:grid;
  grid-template-columns:72px 96px minmax(0,1fr) auto;
  gap:22px;
  padding:16px 28px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--text-3);
  background:rgba(10,8,23,.6);
  border-bottom:1px solid var(--line);
}
.board-cols span:last-child{text-align:right;}

.rank-row{
  display:grid;
  grid-template-columns:72px 96px minmax(0,1fr) auto;
  gap:22px;
  align-items:center;
  padding:22px 28px;
  border-bottom:1px solid var(--line);
  transition:background-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.rank-row:last-child{border-bottom:0;}
.rank-row:nth-child(even){background:rgba(255,255,255,.018);}
.rank-row:hover{
  background:rgba(46,230,198,.05);
  box-shadow:inset 3px 0 0 0 var(--cyan),0 0 0 1px rgba(46,230,198,.22);
  transform:translateY(-2px);
}
.rank-no{
  font-size:26px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  letter-spacing:-.02em;
}
.rank-row.is-top .rank-no{
  background:linear-gradient(120deg,#FFC24B,#FF8A3D);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.rank-thumb{
  position:relative;
  width:96px;
  aspect-ratio:3/4;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:#241D46;
  border:1px solid var(--line-2);
}
.rank-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.rank-row:hover .rank-thumb img{transform:scale(1.07);}
.rank-thumb .thumb-flag{
  position:absolute;
  top:6px;
  left:6px;
}
.rank-body h3{
  font-size:18px;
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rank-body h3 a{color:var(--text);}
.rank-body h3 a:hover{color:var(--cyan);}
.rank-desc{
  font-size:14px;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:12px;
}
.rank-tags{display:flex;flex-wrap:wrap;gap:8px;}
.rank-metrics{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:8px;
  min-width:132px;
}
.metric-line{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.metric-line b{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  font-variant-numeric:tabular-nums;
}
.metric-line b.up{color:var(--cyan);}
.metric-line b.hot{color:var(--yellow);}

.board-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 28px;
  background:rgba(10,8,23,.55);
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:var(--text-3);
}

/* ============ 指标口径卡 ============ */
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
}
.metric-card{
  position:relative;
  padding:28px 24px;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,var(--card) 0%,var(--card-2) 100%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.metric-card:hover{
  transform:translateY(-3px);
  border-color:rgba(46,230,198,.3);
  box-shadow:var(--shadow-card),0 0 0 1px rgba(46,230,198,.35);
}
.metric-card .ico{
  width:44px;
  height:44px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--grad-soft);
  border:1px solid rgba(193,59,255,.3);
  margin-bottom:18px;
  color:var(--cyan);
}
.metric-card .ico svg{width:22px;height:22px;}
.metric-card h3{font-size:18px;margin-bottom:10px;}
.metric-card p{font-size:14.5px;color:var(--text-2);}
.metric-card .num{
  position:absolute;
  top:20px;
  right:24px;
  font-size:34px;
  font-weight:800;
  color:rgba(255,255,255,.07);
  font-variant-numeric:tabular-nums;
}

/* ============ 更新节奏 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
  position:relative;
}
.step{
  padding:26px 22px;
  border-radius:var(--r-md);
  background:rgba(27,22,54,.75);
  border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease;
}
.step:hover{border-color:rgba(46,230,198,.32);transform:translateY(-3px);}
.step .step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:12px;
  background:var(--grad);
  color:#fff;
  font-size:15px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--text-2);}

/* ============ 适用场景图文 ============ */
.scene{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:26px;
}
.scene-card{
  display:grid;
  grid-template-columns:180px minmax(0,1fr);
  gap:22px;
  padding:24px;
  border-radius:var(--r-lg);
  background:linear-gradient(150deg,var(--card),var(--card-2));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.scene-card:hover{
  transform:translateY(-3px);
  border-color:rgba(46,230,198,.3);
  box-shadow:var(--shadow-card),0 0 0 1px rgba(46,230,198,.32);
}
.scene-card img{
  width:100%;
  aspect-ratio:3/4;
  object-fit:cover;
  border-radius:var(--r-sm);
  border:1px solid var(--line-2);
  background:#241D46;
}
.scene-card h3{font-size:19px;margin-bottom:10px;}
.scene-card p{font-size:14.5px;color:var(--text-2);margin-bottom:14px;}
.scene-card ul{display:flex;flex-direction:column;gap:8px;}
.scene-card li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--text-2);
}
.scene-card li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--grad);
}

/* ============ 口碑条 ============ */
.rail{
  display:flex;
  gap:20px;
  overflow-x:auto;
  overscroll-behavior:contain;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:4px 0 12px;
}
.rail::-webkit-scrollbar{display:none;}
.quote-card{
  flex:0 0 320px;
  padding:24px;
  border-radius:var(--r-md);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease;
}
.quote-card:hover{transform:translateY(-3px);border-color:rgba(46,230,198,.3);}
.quote-top{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
}
.avatar{
  width:42px;
  height:42px;
  border-radius:50%;
  flex-shrink:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:800;
  color:#fff;
  background:var(--grad);
}
.quote-name{font-size:15px;font-weight:700;line-height:1.5;}
.quote-time{font-size:12.5px;color:var(--text-3);}
.stars{
  margin-left:auto;
  color:var(--yellow);
  font-size:13px;
  letter-spacing:2px;
  font-variant-numeric:tabular-nums;
}
.quote-card p{font-size:14.5px;color:var(--text-2);}

/* ============ FAQ ============ */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:14px;
  max-width:920px;
}
.faq-item{
  border-radius:var(--r-md);
  background:var(--card);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .22s ease,background-color .22s ease;
}
.faq-item:hover{border-color:var(--line-2);}
.faq-item.open{
  border-color:rgba(46,230,198,.32);
  background:linear-gradient(120deg,rgba(27,22,54,1),rgba(34,26,68,.9));
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  font-size:17px;
  font-weight:700;
  text-align:left;
  color:var(--text);
  border-left:3px solid transparent;
  transition:border-color .22s ease,color .22s ease;
}
.faq-item.open .faq-q{border-left-color:transparent;background:linear-gradient(90deg,rgba(91,59,246,.9),rgba(193,59,255,.9)) no-repeat left top/3px 100%,transparent;}
.faq-q:hover{color:var(--cyan);}
.faq-icon{
  flex-shrink:0;
  width:22px;
  height:22px;
  position:relative;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:var(--cyan);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .18s ease,opacity .18s ease;
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-a-inner{
  padding:0 24px 22px;
  font-size:15px;
  color:var(--text-2);
  border-top:1px solid var(--line);
  padding-top:18px;
}

/* ============ CTA ============ */
.cta-band{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:40px;
  border-radius:var(--r-xl);
  background:linear-gradient(120deg,rgba(91,59,246,.92),rgba(193,59,255,.82));
  box-shadow:0 26px 60px rgba(91,59,246,.38);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-80px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.28),transparent 68%);
}
.cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-copy h2{font-size:30px;margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.9);font-size:15.5px;}
.cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.cta-band .btn-primary{
  background:#fff;
  color:#3A1F8F;
  box-shadow:0 12px 28px rgba(10,8,23,.35);
}
.cta-band .btn-primary:hover{color:#3A1F8F;}
.cta-band .btn-ghost{
  border-color:rgba(255,255,255,.55);
  color:#fff;
}
.cta-band .btn-ghost:hover{border-color:#fff;color:#fff;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--footer-bg);
  padding-top:70px;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(91,59,246,.85),rgba(193,59,255,.85),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand .brand-name{display:inline-block;margin:0 0 14px 10px;vertical-align:middle;}
.footer-brand{
  display:block;
}
.footer-brand .brand-mark{vertical-align:middle;}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  color:var(--text-3);
  line-height:1.9;
  max-width:400px;
}
.footer-col h4{
  font-size:15px;
  margin-bottom:18px;
  color:var(--text);
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{
  font-size:14px;
  color:var(--text-3);
}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 24px 30px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .cat-hero h1{font-size:42px;}
  .scene{grid-template-columns:minmax(0,1fr);}
}

@media (max-width:1023px){
  :root{--sp-section:72px;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
  .cat-hero h1{font-size:38px;}
  .board-cols{display:none;}
  .rank-row{
    grid-template-columns:56px 84px minmax(0,1fr);
    gap:16px;
    padding:20px 20px 24px;
  }
  .rank-thumb{width:84px;}
  .rank-metrics{
    grid-column:1 / -1;
    flex-direction:row;
    flex-wrap:wrap;
    align-items:center;
    justify-content:flex-start;
    padding-top:14px;
    margin-top:6px;
    border-top:1px dashed var(--line-2);
  }
  .board-foot{padding:20px;}
}

@media (max-width:767px){
  :root{--sp-section:48px;}
  .container{padding:0 18px;}
  .search-box{display:none;}
  .nav-toggle{display:flex;}
  .header-top-inner{height:56px;gap:12px;}
  .brand-name{font-size:15px;}
  .brand-mark{width:30px;height:30px;border-radius:10px;}
  .brand-mark svg{width:17px;height:17px;}
  .header-actions .btn-sm{display:none;}
  .channel-inner{
    height:auto;
    padding:10px 18px;
    flex-wrap:wrap;
    overflow-x:visible;
  }
  .channel-inner.is-collapsed{display:none;}
  .cat-hero{padding:36px 0 48px;}
  .cat-hero h1{font-size:30px;}
  .cat-hero .lead{font-size:15.5px;}
  .section-head h2,.board-head h2{font-size:24px;}
  .section-head{margin-bottom:30px;}
  .board-head{margin-bottom:24px;}
  .board{border-radius:var(--r-lg);}
  .rank-row{
    grid-template-columns:44px 72px minmax(0,1fr);
    gap:12px;
    padding:16px 16px 20px;
  }
  .rank-thumb{width:72px;}
  .rank-no{font-size:20px;}
  .rank-body h3{font-size:16px;}
  .rank-desc{font-size:13.5px;}
  .metric-grid,.steps{grid-template-columns:minmax(0,1fr);}
  .scene-card{grid-template-columns:minmax(0,1fr);}
  .scene-card img{aspect-ratio:16/9;}
  .quote-card{flex:0 0 268px;padding:20px;}
  .faq-q{font-size:15.5px;padding:17px 18px;}
  .faq-a-inner{padding:16px 18px 20px;}
  .cta-band{padding:28px 22px;border-radius:var(--r-lg);}
  .cta-copy h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px;padding-bottom:40px;}
  .site-footer{padding-top:52px;}
  .footer-bottom{justify-content:flex-start;}
}

@media (max-width:480px){
  .cat-hero h1{font-size:27px;}
  .stat-pill{padding:9px 14px;}
  .rank-row{grid-template-columns:38px 64px minmax(0,1fr);}
  .rank-thumb{width:64px;}
  .rank-no{font-size:18px;}
  .rank-metrics{gap:6px 14px;}
  .board-foot{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
  --c-bg:#0D0A1C;
  --c-bg-alt:#130F28;
  --c-bg-alt2:#171334;
  --c-card:#1B1636;
  --c-card2:#221A44;
  --c-footer:#0A0817;
  --c-primary:#5B3BF6;
  --c-primary2:#C13BFF;
  --c-cyan:#2EE6C6;
  --c-yellow:#FFC24B;
  --c-red:#FF5A6E;
  --t-main:#F5F3FF;
  --t-sub:#B9B2D8;
  --t-weak:#7F78A0;
  --line:rgba(255,255,255,.06);
  --line-strong:rgba(255,255,255,.18);
  --input-bg:#14102A;
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --r-pill:999px;
  --sh-card:0 18px 44px rgba(11,8,30,.55);
  --sh-btn:0 10px 26px rgba(91,59,246,.45);
  --grad:linear-gradient(135deg,#5B3BF6 0%,#C13BFF 100%);
  --wrap:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t-main);
  background-color:var(--c-bg);
  background-image:
    radial-gradient(900px 620px at 88% -10%, rgba(193,59,255,.16), transparent 65%),
    radial-gradient(760px 520px at 4% 2%, rgba(91,59,246,.16), transparent 68%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-cyan);text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:var(--c-yellow)}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--c-cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding-left:24px;padding-right:24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.num{font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);
  font-weight:700;font-size:15px;
  padding:12px 24px;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background-color .18s ease,color .18s ease,filter .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn:active{transform:translateY(0)}
.btn-primary{background-image:var(--grad);color:#fff;box-shadow:var(--sh-btn)}
.btn-primary:hover{color:#fff}
.btn-ghost{background:transparent;color:var(--t-main);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--c-cyan);border-color:var(--c-cyan)}
.btn-light{background:#fff;color:#2B1A6B}
.btn-light:hover{color:#2B1A6B;box-shadow:0 12px 26px rgba(11,8,30,.35)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--c-cyan);text-decoration:underline;text-underline-offset:3px}
.link-more:hover{color:var(--c-yellow)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:700;line-height:1.6;
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.badge-purple{background:rgba(91,59,246,.18);color:#C7B6FF;border:1px solid rgba(91,59,246,.35)}
.badge-cyan{background:rgba(46,230,198,.14);color:#7DF3E0;border:1px solid rgba(46,230,198,.3)}
.badge-yellow{background:rgba(255,194,75,.16);color:#FFD98A;border:1px solid rgba(255,194,75,.32)}
.badge-dark{background:rgba(13,10,28,.78);color:#EDE9FF;border:1px solid rgba(255,255,255,.12)}
.badge-num{background:rgba(255,255,255,.06);color:var(--t-sub);border:1px solid var(--line)}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(13,10,28,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .22s ease,border-color .22s ease;
}
.site-header.scrolled{background:rgba(10,8,23,.97);border-bottom-color:var(--line)}
.header-top{height:64px}
.header-top-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--t-main)}
.brand:hover{color:var(--t-main)}
.brand-mark{
  width:34px;height:34px;border-radius:12px;
  display:grid;place-items:center;
  background-image:var(--grad);
  box-shadow:var(--sh-btn);
  flex-shrink:0;
}
.brand-mark svg{width:18px;height:18px}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.search-box{
  position:relative;flex:1 1 auto;max-width:320px;
  display:flex;align-items:center;gap:8px;
  background:var(--input-bg);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:0 14px;height:40px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--c-cyan);box-shadow:0 0 0 3px rgba(46,230,198,.15)}
.search-ico{width:17px;height:17px;color:var(--t-weak);flex-shrink:0}
.search-box input{
  flex:1;min-width:0;background:none;border:0;outline:none;
  font-size:14px;color:var(--t-main);height:100%;
}
.search-box input::placeholder{color:var(--t-weak)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:40px;border-radius:12px;
  border:1px solid var(--line-strong);
  padding:0 11px;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--t-main);transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.channel-nav{border-top:1px solid rgba(255,255,255,.04)}
.channel-inner{
  display:flex;align-items:center;gap:10px;
  height:44px;overflow-x:auto;overscroll-behavior:contain;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;
  padding:7px 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:700;color:var(--t-sub);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  transition:color .18s ease,border-color .18s ease,background .18s ease,transform .18s ease;
}
.pill:hover{color:var(--t-main);border-color:var(--c-cyan);transform:translateY(-1px)}
.pill.active{
  color:#fff;border-color:transparent;
  background-image:var(--grad);
  box-shadow:0 8px 20px rgba(91,59,246,.35);
}
.pill.active:hover{color:#fff}

/* ---------- 分类页头 ---------- */
.category-head{
  position:relative;overflow:hidden;
  padding:52px 0 44px;
  background-image:
    linear-gradient(180deg,rgba(13,10,28,.72) 0%,rgba(13,10,28,.9) 55%,var(--c-bg) 100%),
    url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
}
.category-head::after{
  content:"";position:absolute;right:-160px;top:-220px;
  width:560px;height:560px;border-radius:50%;
  border:1px solid rgba(46,230,198,.16);
  pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--t-weak);margin-bottom:16px;
}
.breadcrumb a{color:var(--t-sub)}
.breadcrumb a:hover{color:var(--c-cyan)}
.breadcrumb .sep{color:var(--t-weak)}
.category-head h1{
  font-size:48px;line-height:1.18;margin-bottom:16px;
  max-width:900px;
}
.category-head h1 em{
  font-style:normal;
  background-image:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.lead{max-width:820px;color:var(--t-sub);font-size:16px}
.stat-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.stat-row .badge{padding:7px 15px;font-size:13.5px}

/* ---------- 主区 ---------- */
main{position:relative;z-index:1}
.section{padding:64px 0}
.section-alt{background:var(--c-bg-alt)}
.section-alt2{background:var(--c-bg-alt2)}
.section-head{margin-bottom:32px;max-width:820px}
.section-head h2{font-size:32px;margin-bottom:10px}
.section-head p{color:var(--t-sub);font-size:15.5px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--c-cyan);
  letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;
}

/* ---------- 时间线布局 ---------- */
.news-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:28px;align-items:start}
.tl{position:relative}
.tl-item{position:relative;padding:0 0 28px 132px}
.tl-item::before{
  content:"";position:absolute;left:93px;top:16px;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(91,59,246,.6),rgba(46,230,198,.22) 55%,rgba(46,230,198,0));
}
.tl-item:last-child{padding-bottom:0}
.tl-item:last-child::before{display:none}
.tl-dot{
  position:absolute;left:86px;top:8px;
  width:15px;height:15px;border-radius:50%;
  background:var(--c-bg);
  border:2px solid var(--c-cyan);
  box-shadow:0 0 0 4px rgba(46,230,198,.12);
}
.tl-time{
  position:absolute;left:0;top:0;width:80px;text-align:right;
  display:flex;flex-direction:column;align-items:flex-end;gap:2px;
}
.tl-time time{font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--t-main)}
.tl-date{font-size:12.5px;color:var(--t-weak)}
.tl-card{
  display:grid;grid-template-columns:196px minmax(0,1fr);gap:20px;
  padding:16px;border-radius:var(--r-md);
  background-image:linear-gradient(160deg,var(--c-card),var(--c-card2));
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card:hover{
  transform:translateY(-3px);
  border-color:rgba(46,230,198,.35);
  box-shadow:var(--sh-card),0 0 0 1px rgba(46,230,198,.35);
}
.tl-thumb{border-radius:var(--r-sm);overflow:hidden;background:#100C24;aspect-ratio:16/9}
.tl-thumb img{width:100%;height:100%;object-fit:cover}
.tl-body{display:flex;flex-direction:column;gap:10px;min-width:0}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.meta-text{font-size:13px;color:var(--t-weak);font-variant-numeric:tabular-nums}
.tl-body h3{font-size:18px;line-height:1.45}
.tl-body p{font-size:14.5px;color:var(--t-sub);line-height:1.8}

/* ---------- 侧栏 ---------- */
.side{position:sticky;top:124px;display:grid;gap:20px}
.side-card{
  border-radius:var(--r-md);
  background-image:linear-gradient(160deg,var(--c-card),var(--c-card2));
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  padding:22px;
}
.side-card h3{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3::before{
  content:"";width:4px;height:16px;border-radius:3px;background-image:var(--grad);display:block;
}
.entry-list li+li{border-top:1px solid var(--line)}
.entry-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 2px;font-size:14.5px;font-weight:600;color:var(--t-sub);
}
.entry-list a:hover{color:var(--c-cyan)}
.entry-list a span.count{font-size:13px;color:var(--t-weak);font-variant-numeric:tabular-nums}
.bar-row{margin-bottom:14px}
.bar-row:last-child{margin-bottom:0}
.bar-label{display:flex;justify-content:space-between;font-size:13.5px;color:var(--t-sub);margin-bottom:7px}
.bar-label b{color:var(--t-main);font-variant-numeric:tabular-nums}
.bar{height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.07);overflow:hidden}
.bar > span{display:block;height:100%;border-radius:var(--r-pill);background-image:var(--grad)}
.bar.cyan > span{background-image:linear-gradient(135deg,#2EE6C6,#5B3BF6)}
.sub-form{display:flex;flex-direction:column;gap:12px}
.field{
  display:flex;align-items:center;
  background:var(--input-bg);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:0 14px;height:44px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field:focus-within{border-color:var(--c-cyan);box-shadow:0 0 0 3px rgba(46,230,198,.15)}
.field input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:14px;height:100%}
.field input::placeholder{color:var(--t-weak)}
.field.error{border-color:var(--c-red);box-shadow:0 0 0 3px rgba(255,90,110,.14)}
.form-hint{font-size:13px;color:var(--t-weak)}
.form-hint.err{color:var(--c-red)}
.side-note{font-size:13px;color:var(--t-weak);line-height:1.7}

/* ---------- 数据看板 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.metric{
  border-radius:var(--r-md);padding:24px 22px;
  background-image:linear-gradient(160deg,var(--c-card),var(--c-card2));
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  transition:transform .2s ease,border-color .2s ease;
}
.metric:hover{transform:translateY(-3px);border-color:rgba(46,230,198,.35)}
.metric strong{display:block;font-size:34px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums;
  background-image:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.metric span{display:block;font-size:13.5px;color:var(--t-weak);margin-top:6px}
.metric p{margin-top:12px;font-size:14px;color:var(--t-sub)}

/* ---------- 资讯类型列表 ---------- */
.type-list{border-top:1px solid var(--line)}
.type-row{
  display:grid;grid-template-columns:52px minmax(0,1fr) 120px;
  gap:20px;align-items:center;
  padding:22px 6px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease;
}
.type-row:hover{background:rgba(255,255,255,.02)}
.type-ico{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  background:rgba(91,59,246,.16);border:1px solid rgba(91,59,246,.32);
  color:var(--c-cyan);
}
.type-ico svg{width:24px;height:24px}
.type-row h3{font-size:17px;margin-bottom:4px}
.type-row p{font-size:14px;color:var(--t-sub)}
.type-row .type-count{text-align:right;font-size:14px;color:var(--t-weak);font-variant-numeric:tabular-nums}
.type-row .type-count b{display:block;font-size:22px;color:var(--t-main)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  position:relative;overflow:hidden;
  border-radius:18px;
  background-image:linear-gradient(160deg,var(--c-card),var(--c-card2));
  border:1px solid var(--line);
  padding:0 22px;
  transition:border-color .2s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background-image:var(--grad);opacity:0;transition:opacity .2s ease;
}
.faq-item[open]{border-color:rgba(46,230,198,.3)}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:17px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:700;color:var(--c-cyan);line-height:1;
  transition:transform .18s ease;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 0 20px;font-size:15px;color:var(--t-sub)}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:var(--r-lg);
  background-image:var(--grad);
  padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 24px 60px rgba(91,59,246,.35);
}
.cta-band h2{font-size:28px;color:#fff;margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.85);font-size:15px;max-width:640px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--c-footer);margin-top:0}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(91,59,246,.85),rgba(46,230,198,.6),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;
  padding-top:56px;padding-bottom:40px;
}
.footer-brand .brand-mark{margin-bottom:14px}
.footer-brand .brand-name{display:inline-block;font-size:17px;font-weight:800;margin-bottom:12px}
.footer-brand p{font-size:14px;color:var(--t-weak);line-height:1.85;max-width:400px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--t-main)}
.footer-col ul li+li{margin-top:10px}
.footer-col a{font-size:14px;color:var(--t-sub)}
.footer-col a:hover{color:var(--c-cyan)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:20px;padding-bottom:28px;
  border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13px;color:var(--t-weak)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .news-layout{grid-template-columns:minmax(0,1fr) 312px}
}
@media (max-width:1023px){
  .category-head h1{font-size:38px}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-layout{grid-template-columns:minmax(0,1fr)}
  .side{position:static;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .search-box{max-width:220px}
}
@media (max-width:767px){
  .container{padding-left:18px;padding-right:18px}
  .header-top{height:56px}
  .header-top-inner{height:56px;gap:12px}
  .brand-name{font-size:15px}
  .search-box{display:none}
  .nav-toggle{display:flex}
  .channel-nav{display:none}
  .channel-nav.open{display:block;padding-bottom:12px;border-top:1px solid var(--line)}
  .channel-nav.open .channel-inner{
    flex-direction:column;align-items:stretch;height:auto;gap:8px;
    padding-top:12px;overflow:visible;
  }
  .channel-nav.open .pill{text-align:center}
  .category-head{padding:34px 0 32px}
  .category-head h1{font-size:30px}
  .lead{font-size:15px}
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
  .tl-item{padding-left:88px;padding-bottom:20px}
  .tl-item::before{left:68px}
  .tl-dot{left:62px;top:9px;width:13px;height:13px}
  .tl-time{width:56px}
  .tl-time time{font-size:14px}
  .tl-date{font-size:12px}
  .tl-card{grid-template-columns:minmax(0,1fr);gap:14px;padding:14px}
  .tl-body h3{font-size:17px}
  .side{grid-template-columns:minmax(0,1fr)}
  .type-row{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:18px 2px}
  .type-ico{width:44px;height:44px;border-radius:14px}
  .type-row .type-count{grid-column:2;text-align:left}
  .type-row .type-count b{display:inline;font-size:15px;margin-right:4px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px;gap:20px}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-top:44px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .category-head h1{font-size:26px}
  .metric-grid{grid-template-columns:minmax(0,1fr)}
  .metric strong{font-size:30px}
  .stat-row .badge{font-size:12.5px;padding:6px 12px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category4 */
:root{
  --bg:#0D0A1C;
  --bg-2:#130F28;
  --bg-3:#171334;
  --card-1:#1B1636;
  --card-2:#221A44;
  --footer-bg:#0A0817;
  --violet:#5B3BF6;
  --magenta:#C13BFF;
  --cyan:#2EE6C6;
  --gold:#FFC24B;
  --red:#FF5A6E;
  --text:#F5F3FF;
  --text-2:#B9B2D8;
  --text-3:#7F78A0;
  --line:rgba(255,255,255,.06);
  --line-2:rgba(255,255,255,.18);
  --grad:linear-gradient(135deg,#5B3BF6 0%,#C13BFF 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --shadow:0 18px 44px rgba(11,8,30,.55);
  --shadow-hover:0 18px 44px rgba(11,8,30,.55),0 0 0 1px rgba(46,230,198,.35);
  --header-h:108px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--header-h);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--gold)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  background:rgba(13,10,28,.97);
  transition:background .22s ease,box-shadow .22s ease;
}
.site-header.is-scrolled{
  background:rgba(10,8,23,.99);
  box-shadow:0 10px 30px rgba(6,4,18,.6);
}
.header-top{border-bottom:1px solid var(--line)}
.header-top-inner{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;
  box-shadow:0 10px 22px rgba(91,59,246,.45);
  flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px}
.brand-name{font-size:17px;font-weight:800;white-space:nowrap}

.search-box{
  position:relative;
  display:flex;align-items:center;gap:8px;
  height:42px;
  flex:1 1 auto;
  max-width:320px;
  margin:0 8px;
  padding:0 12px;
  background:#14102A;
  border:1px solid var(--line-2);
  border-radius:var(--r-sm);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(46,230,198,.16)}
.search-ico{width:18px;height:18px;color:var(--text-3);flex:0 0 auto}
.search-box input{
  flex:1 1 auto;min-width:0;
  height:100%;
  border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:var(--text-3)}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:0 0 auto}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;
  font-weight:700;
  transition:transform .18s ease,filter .18s ease,border-color .18s ease,box-shadow .18s ease,opacity .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 26px rgba(91,59,246,.45);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06)}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border:1px solid var(--line-2);
}
.btn-ghost:hover{color:var(--text);border-color:var(--cyan);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-md{height:46px;padding:0 26px;font-size:15px}
.btn-lg{height:52px;padding:0 32px;font-size:16px}
.btn:active{transform:translateY(0)}
.btn[disabled]{opacity:.45;pointer-events:none}

.nav-toggle{
  display:none;
  width:42px;height:38px;
  border:1px solid var(--line-2);
  border-radius:12px;
  padding:0 10px;
  flex-direction:column;
  justify-content:center;
  gap:4px;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text-2);transition:background .18s ease}
.nav-toggle:hover span{background:var(--cyan)}

.channel-nav{
  border-bottom:1px solid var(--line);
  background:rgba(19,15,40,.96);
}
.channel-inner{
  display:flex;align-items:center;gap:10px;
  height:44px;
  overflow-x:auto;
  overscroll-behavior:contain;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:30px;padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line-2);
  color:var(--text-2);
  font-size:14px;
  font-weight:600;
  transition:color .18s ease,border-color .18s ease,background .18s ease,transform .18s ease;
}
.pill:hover{color:var(--text);border-color:var(--cyan);transform:translateY(-1px)}
.pill.active{
  background:var(--grad);
  border-color:transparent;
  color:#fff;
  box-shadow:0 8px 20px rgba(91,59,246,.4);
}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:44px 0 64px;
  background:var(--bg-2);
}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
  opacity:.2;
}
.page-hero .hero-veil{
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 16% 18%,rgba(91,59,246,.34),transparent 55%),
    radial-gradient(circle at 84% 6%,rgba(46,230,198,.16),transparent 52%),
    linear-gradient(180deg,rgba(13,10,28,.62),var(--bg-2) 88%);
}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:13px;color:var(--text-3);margin-bottom:16px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{margin:0 8px;color:var(--text-3)}
.page-hero h1{
  font-size:clamp(30px,4.6vw,46px);
  line-height:1.22;
  max-width:900px;
}
.page-hero h1 .hl{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  margin-top:18px;
  max-width:760px;
  font-size:16px;
  color:var(--text-2);
}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  background:rgba(91,59,246,.18);
  color:#CDBDFF;
  border:1px solid rgba(91,59,246,.34);
}
.badge-cyan{background:rgba(46,230,198,.14);color:var(--cyan);border-color:rgba(46,230,198,.32)}
.badge-gold{background:rgba(255,194,75,.14);color:var(--gold);border-color:rgba(255,194,75,.32)}
.badge-plain{background:rgba(255,255,255,.06);color:var(--text-2);border-color:var(--line-2)}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-3)}
.section-head{max-width:780px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,32px)}
.section-head p{margin-top:14px;color:var(--text-2);font-size:15.5px}
.section-head .rule{
  width:64px;height:4px;border-radius:999px;
  background:var(--grad);
  margin-bottom:18px;
}

/* ---------- compare cards ---------- */
.compare-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.compare-card{
  display:flex;flex-direction:column;
  background:linear-gradient(160deg,var(--card-1),var(--card-2));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.compare-head{
  display:flex;align-items:center;gap:14px;
  padding:22px 22px 18px;
}
.compare-thumb{
  width:58px;height:58px;border-radius:16px;
  object-fit:cover;flex:0 0 auto;
  background:var(--bg-3);
}
.compare-head h3{font-size:18px}
.compare-head .tag{margin-top:6px}
.tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:999px;
  font-size:12px;font-weight:700;
  background:rgba(255,194,75,.14);
  color:var(--gold);
}
.tag-cyan{background:rgba(46,230,198,.14);color:var(--cyan)}
.tag-violet{background:rgba(91,59,246,.2);color:#CDBDFF}
.spec-list{padding:4px 0 0;margin-top:auto}
.spec-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:13px 22px;
  border-top:1px solid var(--line);
  font-size:14px;
}
.spec-row .k{color:var(--text-3)}
.spec-row .v{
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--text);
  text-align:right;
}
.spec-row .v.up{color:var(--cyan)}
.spec-row .v.warn{color:var(--gold)}
.compare-foot{padding:20px 22px 24px}
.compare-foot .btn{width:100%}

/* ---------- meters ---------- */
.meter-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.meter{
  background:linear-gradient(160deg,var(--card-1),var(--card-2));
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px 22px;
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease;
}
.meter:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.meter-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.meter-top h3{font-size:16px}
.meter-top .score{
  font-size:15px;font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--gold);
}
.meter p{margin-top:8px;font-size:13.5px;color:var(--text-3)}
.meter-bar{
  height:8px;border-radius:999px;
  background:rgba(255,255,255,.08);
  margin-top:14px;overflow:hidden;
}
.meter-bar span{display:block;height:100%;border-radius:999px;background:var(--grad)}

/* ---------- stats ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  margin-top:8px;
}
.stat{
  background:var(--bg-3);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 22px;
}
.stat .num{
  font-size:32px;font-weight:800;
  font-variant-numeric:tabular-nums;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  line-height:1.2;
}
.stat .num small{font-size:15px;font-weight:700;margin-left:4px;color:var(--text-2);-webkit-text-fill-color:var(--text-2)}
.stat .label{margin-top:10px;font-size:14px;color:var(--text-2)}
.stat .note{margin-top:6px;font-size:13px;color:var(--text-3)}

/* ---------- steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  counter-reset:step;
}
.step{
  position:relative;
  background:var(--card-1);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 22px;
  transition:border-color .2s ease,transform .2s ease;
}
.step:hover{border-color:rgba(46,230,198,.4);transform:translateY(-3px)}
.step .idx{
  font-size:26px;font-weight:800;
  font-variant-numeric:tabular-nums;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.step h3{margin-top:12px;font-size:17px}
.step p{margin-top:8px;font-size:14px;color:var(--text-3)}

/* ---------- record list ---------- */
.record-wrap{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:28px;
  align-items:start;
}
.record-list{
  background:linear-gradient(160deg,var(--card-1),var(--card-2));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:8px 24px;
  box-shadow:var(--shadow);
}
.record-item{
  display:flex;align-items:center;gap:16px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.record-item:last-child{border-bottom:0}
.record-day{
  flex:0 0 62px;
  font-size:14px;font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--cyan);
}
.record-body{flex:1 1 auto;min-width:0}
.record-body h3{font-size:15.5px}
.record-body p{margin-top:4px;font-size:13px;color:var(--text-3)}
.record-val{
  flex:0 0 auto;
  font-size:14px;font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--text);
}
.record-aside{
  background:var(--bg-3);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  position:sticky;
  top:132px;
}
.record-aside h3{font-size:18px}
.record-aside p{margin-top:12px;font-size:14px;color:var(--text-2)}
.record-aside ul{margin-top:18px;display:grid;gap:12px}
.record-aside li{
  display:flex;gap:10px;
  font-size:14px;color:var(--text-2);
}
.record-aside li::before{
  content:"";
  flex:0 0 6px;
  width:6px;height:6px;
  margin-top:10px;
  border-radius:50%;
  background:var(--grad);
}
.record-aside .btn{margin-top:22px;width:100%}

/* ---------- faq ---------- */
.faq{display:grid;gap:14px;max-width:920px}
.faq details{
  position:relative;
  background:var(--card-1);
  border:1px solid var(--line);
  border-radius:18px;
  padding:0 24px;
  overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq details::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;
  width:3px;
  background:var(--grad);
  opacity:0;
  transition:opacity .2s ease;
}
.faq details[open]::before{opacity:1}
.faq details:hover{border-color:var(--line-2)}
.faq details[open]{background:#1F1A3D}
.faq summary{
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;
  font-size:17px;font-weight:700;
  cursor:pointer;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";
  flex:0 0 auto;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line-2);
  color:var(--cyan);
  font-size:16px;
  font-weight:700;
  transition:transform .18s ease,color .18s ease,border-color .18s ease;
}
.faq details[open] summary::after{
  content:"−";
  transform:rotate(180deg);
  color:var(--gold);
  border-color:rgba(255,194,75,.45);
}
.faq .answer{
  padding:0 0 22px;
  font-size:15px;
  color:var(--text-2);
  max-width:760px;
}

/* ---------- cta ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:40px;
  border-radius:var(--r-lg);
  background:var(--grad);
  box-shadow:0 24px 54px rgba(91,59,246,.38);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;top:-70px;
  width:260px;height:260px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.28);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);color:#fff}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.86);font-size:15px;max-width:600px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}
.btn-light{background:#fff;color:#2A1A6B}
.btn-light:hover{color:#2A1A6B;transform:translateY(-2px);filter:brightness(1.04)}
.btn-outline-light{border:1px solid rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-outline-light:hover{color:#fff;border-color:#fff;transform:translateY(-2px)}

/* ---------- skeleton / empty ---------- */
.skeleton{
  border-radius:var(--r-md);
  background:linear-gradient(90deg,rgba(255,255,255,.05),rgba(255,255,255,.11),rgba(255,255,255,.05));
  background-size:200% 100%;
  animation:pulse 1.4s ease-in-out infinite;
  height:96px;
}
@keyframes pulse{0%{background-position:200% 0}100%{background-position:-200% 0}}
.empty{
  display:grid;place-items:center;gap:12px;
  padding:44px 24px;
  border:1px dashed var(--line-2);
  border-radius:var(--r-md);
  color:var(--text-3);
  text-align:center;
}
.empty .ico{color:var(--gold);font-size:24px}

/* ---------- footer ---------- */
.site-footer{
  margin-top:0;
  background:var(--footer-bg);
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(91,59,246,0),rgba(91,59,246,.75),rgba(46,230,198,.6),rgba(91,59,246,0)) 1;
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:48px;
}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:11px}
.footer-brand .brand-name{display:inline-block;margin-left:10px;vertical-align:middle}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  color:var(--text-3);
  max-width:360px;
}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--text-2);font-size:14px}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px 28px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
  flex-wrap:wrap;
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .compare-grid{gap:20px}
  .cta-band{padding:34px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  :root{--header-h:108px}
  .compare-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .record-wrap{grid-template-columns:1fr}
  .record-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  :root{--header-h:56px}
  body{padding-top:56px;font-size:15.5px}
  .container{padding:0 18px}
  .header-top-inner{height:56px;gap:12px}
  .brand-name{font-size:15.5px}
  .search-box{display:none}
  .nav-toggle{display:flex}
  .channel-nav{
    position:fixed;
    top:56px;left:0;right:0;
    max-height:0;
    overflow:hidden;
    border-bottom:1px solid var(--line);
    background:var(--bg-2);
    transition:max-height .28s ease;
  }
  .site-header.nav-open .channel-nav{max-height:74vh;overflow-y:auto}
  .channel-inner{
    flex-direction:column;
    align-items:stretch;
    height:auto;
    gap:8px;
    padding:14px 18px 18px;
    overflow:visible;
  }
  .pill{width:100%;justify-content:center;height:40px}
  .page-hero{padding:32px 0 48px}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .compare-grid{grid-template-columns:1fr}
  .meter-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:14px}
  .steps{grid-template-columns:1fr}
  .stat{padding:20px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;gap:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .faq details{padding:0 18px}
  .faq summary{font-size:16px;padding:16px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px}
  .footer-brand p{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start;padding:18px 18px 26px}
}
@media (max-width:480px){
  .page-hero h1{font-size:28px}
  .badge-row{gap:8px}
  .badge{height:28px;padding:0 12px;font-size:12.5px}
  .record-item{flex-wrap:wrap;gap:10px}
  .record-val{width:100%;text-align:left}
}

/* roulang page: category5 */
:root{
  --p:#5B3BF6;
  --m:#C13BFF;
  --cyan:#2EE6C6;
  --amber:#FFC24B;
  --red:#FF5A6E;
  --bg:#0D0A1C;
  --bg-alt:#130F28;
  --bg-alt2:#171334;
  --card-a:#1B1636;
  --card-b:#221A44;
  --foot:#0A0817;
  --t1:#F5F3FF;
  --t2:#B9B2D8;
  --t3:#7F78A0;
  --line:rgba(255,255,255,.06);
  --line2:rgba(255,255,255,.14);
  --grad:linear-gradient(120deg,#5B3BF6 0%,#C13BFF 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --sh-card:0 18px 44px rgba(11,8,30,.55);
  --sh-btn:0 10px 26px rgba(91,59,246,.45);
  --w:1280px;
  --pad:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 12% -6%,rgba(91,59,246,.28),transparent 62%),
    radial-gradient(560px 380px at 88% 4%,rgba(193,59,255,.20),transparent 60%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--cyan);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--amber)}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 var(--pad);position:relative;z-index:1}
.num{font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(13,10,28,.86);
  backdrop-filter:saturate(140%) blur(8px);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,8,23,.96);
  box-shadow:0 1px 0 rgba(255,255,255,.06),0 14px 34px rgba(6,4,18,.6);
}
.header-top{border-bottom:1px solid transparent}
.site-header.is-scrolled .header-top{border-bottom-color:rgba(255,255,255,.06)}
.header-top-inner{
  display:flex;align-items:center;gap:20px;
  height:64px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--t1)}
.brand:hover{color:var(--t1)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(91,59,246,.42);
  flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.search-box{
  flex:1 1 auto;max-width:320px;position:relative;display:flex;align-items:center;
  background:#14102A;border:1px solid var(--line2);border-radius:var(--r-sm);
  padding:0 12px;height:40px;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(46,230,198,.16)}
.search-ico{width:17px;height:17px;color:var(--t3);flex:0 0 auto}
.search-box input{
  flex:1;background:transparent;border:0;outline:none;color:var(--t1);
  font-size:14px;padding:0 8px;height:100%;
}
.search-box input::placeholder{color:var(--t3)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line2);
  cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--t1);transition:transform .2s ease,opacity .2s ease}

.channel-nav{border-bottom:1px solid var(--line);background:rgba(19,15,40,.6)}
.channel-inner{
  display:flex;align-items:center;gap:10px;
  height:44px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  overscroll-behavior:contain;
}
.channel-inner::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:30px;padding:0 15px;
  border-radius:999px;font-size:14px;font-weight:600;color:var(--t2);
  border:1px solid var(--line2);background:transparent;white-space:nowrap;
  transition:color .18s ease,border-color .18s ease,background .18s ease,transform .18s ease;
}
.pill:hover{color:var(--t1);border-color:var(--cyan);transform:translateY(-1px)}
.pill.active{
  background:var(--grad);border-color:transparent;color:#fff;
  box-shadow:0 8px 20px rgba(91,59,246,.4);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:700;padding:0 22px;height:44px;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-btn)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--t1)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}

/* ---------- inner hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#130F28 0%,#0D0A1C 100%);
  padding:44px 0 56px;
}
.page-hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.16;
}
.page-hero::after{
  content:"";position:absolute;left:-10%;right:-10%;bottom:-60%;height:420px;z-index:0;
  border-radius:50%;
  background:radial-gradient(closest-side,rgba(193,59,255,.18),transparent 72%);
  pointer-events:none;
}
.crumb{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);
  margin-bottom:16px;flex-wrap:wrap;
}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{color:rgba(255,255,255,.2)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:40px;align-items:center}
.page-hero h1{font-size:48px;line-height:1.2;margin-bottom:16px}
.page-hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--t2);font-size:16px;max-width:620px;line-height:1.9}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:32px;padding:0 14px;border-radius:999px;
  font-size:14px;font-weight:600;border:1px solid transparent;
  font-variant-numeric:tabular-nums;
}
.badge-purple{background:rgba(91,59,246,.16);color:#C9BCFF;border-color:rgba(91,59,246,.42)}
.badge-cyan{background:rgba(46,230,198,.13);color:#8DF4E3;border-color:rgba(46,230,198,.34)}
.badge-amber{background:rgba(255,194,75,.14);color:#FFD68C;border-color:rgba(255,194,75,.36)}
.hero-figure{
  border-radius:var(--r-lg);overflow:hidden;position:relative;
  box-shadow:var(--sh-card);aspect-ratio:4/3;background:var(--card-a);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure .tagline{
  position:absolute;left:14px;bottom:14px;
  display:inline-flex;align-items:center;height:30px;padding:0 13px;border-radius:999px;
  background:rgba(10,8,23,.72);border:1px solid rgba(255,255,255,.14);
  font-size:13px;color:var(--t1);font-weight:600;
}

/* ---------- sections ---------- */
.section{padding:72px 0;position:relative}
.section.alt{background:var(--bg-alt2)}
.section-head{margin-bottom:32px;max-width:760px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--cyan);letter-spacing:.08em;margin-bottom:10px;
}
.section-head .eyebrow::before{
  content:"";width:18px;height:2px;border-radius:2px;background:var(--grad);
}
.section-head h2{font-size:32px;margin-bottom:12px}
.section-head p{color:var(--t2);font-size:15px;line-height:1.9}

/* ---------- entry grid ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.entry-card{
  display:flex;align-items:flex-start;gap:16px;
  padding:22px;border-radius:var(--r-md);
  background:linear-gradient(160deg,var(--card-a),var(--card-b));
  border:1px solid var(--line);box-shadow:var(--sh-card);
  color:var(--t1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.entry-card:hover{
  transform:translateY(-3px);color:var(--t1);
  border-color:rgba(46,230,198,.35);
  box-shadow:var(--sh-card),0 0 0 1px rgba(46,230,198,.35);
}
.entry-ico{
  width:44px;height:44px;border-radius:14px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(91,59,246,.18);border:1px solid rgba(91,59,246,.42);
  color:#C9BCFF;
}
.entry-ico svg{width:20px;height:20px}
.entry-card:nth-child(2n) .entry-ico{background:rgba(46,230,198,.14);border-color:rgba(46,230,198,.34);color:#8DF4E3}
.entry-card:nth-child(3n) .entry-ico{background:rgba(255,194,75,.14);border-color:rgba(255,194,75,.36);color:#FFD68C}
.entry-card h3{font-size:17px;margin-bottom:6px}
.entry-card p{font-size:13.5px;color:var(--t2);line-height:1.75}
.entry-card .go{
  display:inline-flex;align-items:center;gap:6px;margin-top:10px;
  font-size:13px;font-weight:700;color:var(--cyan);
}
.entry-card:hover .go{color:var(--amber)}

/* ---------- highlight strip ---------- */
.strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--line);border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);margin-top:24px;
}
.strip-cell{background:var(--bg-alt);padding:20px 22px}
.strip-cell .k{font-size:13px;color:var(--t3);margin-bottom:6px}
.strip-cell .v{font-size:24px;font-weight:800;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.strip-cell .v small{font-size:13px;font-weight:700;color:var(--t2);margin-left:4px}
.strip-cell:nth-child(1) .v{color:#C9BCFF}
.strip-cell:nth-child(2) .v{color:var(--cyan)}
.strip-cell:nth-child(3) .v{color:var(--amber)}
.strip-cell:nth-child(4) .v{color:#F0A9FF}

/* ---------- faq ---------- */
.faq-group{margin-bottom:40px}
.faq-group:last-child{margin-bottom:0}
.faq-group-title{
  display:flex;align-items:center;gap:12px;margin-bottom:18px;
}
.faq-group-title .idx{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad);color:#fff;font-size:15px;font-weight:800;
  font-variant-numeric:tabular-nums;
}
.faq-group-title h3{font-size:20px}
.faq-group-title span.count{
  margin-left:auto;font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums;
}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:linear-gradient(160deg,var(--card-a),var(--card-b));
  border:1px solid var(--line);border-radius:18px;
  overflow:hidden;position:relative;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad);opacity:0;transition:opacity .2s ease;
}
.faq-item[open]{border-color:rgba(46,230,198,.28);box-shadow:0 14px 34px rgba(11,8,30,.5)}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:18px 22px 18px 26px;
  font-size:17px;font-weight:700;color:var(--t1);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--cyan)}
.faq-item summary .sign{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line2);position:relative;
  transition:transform .18s ease,border-color .18s ease,background .18s ease;
}
.faq-item summary .sign::before,
.faq-item summary .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--t2);
  border-radius:2px;transform:translate(-50%,-50%);
}
.faq-item summary .sign::before{width:12px;height:2px}
.faq-item summary .sign::after{width:2px;height:12px;transition:opacity .18s ease}
.faq-item[open] summary .sign{transform:rotate(180deg);border-color:var(--cyan);background:rgba(46,230,198,.12)}
.faq-item[open] summary .sign::before,
.faq-item[open] summary .sign::after{background:var(--cyan)}
.faq-item[open] summary .sign::after{opacity:0}
.faq-answer{padding:0 26px 22px 26px;color:var(--t2);font-size:15px;line-height:1.9}
.faq-answer p+p{margin-top:10px}
.faq-answer .inline-link{font-weight:700}
.faq-answer ul{margin-top:10px;display:grid;gap:8px}
.faq-answer li{position:relative;padding-left:18px}
.faq-answer li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--cyan);
}

/* ---------- prep card ---------- */
.prep{
  display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;
  background:linear-gradient(160deg,#1B1636,#221A44);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-card);position:relative;overflow:hidden;
}
.prep::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(46,230,198,.16),transparent 72%);
  pointer-events:none;
}
.prep h3{font-size:22px;margin-bottom:12px}
.prep p{color:var(--t2);font-size:15px}
.prep-list{display:grid;gap:12px;position:relative;z-index:1}
.prep-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:12px 14px;font-size:14px;color:var(--t2);
}
.prep-list li b{color:var(--t1);font-weight:700}
.prep-list .n{
  width:22px;height:22px;border-radius:7px;flex:0 0 auto;margin-top:2px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(91,59,246,.24);color:#C9BCFF;font-size:12px;font-weight:800;
}

/* ---------- cta ---------- */
.cta-band{
  background:var(--grad);border-radius:var(--r-lg);
  padding:40px;display:flex;align-items:center;gap:28px;justify-content:space-between;
  box-shadow:0 24px 54px rgba(91,59,246,.4);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(255,255,255,.22),transparent 70%);
  pointer-events:none;
}
.cta-band h2{font-size:28px;margin-bottom:10px;color:#fff}
.cta-band p{color:rgba(255,255,255,.9);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}
.cta-band .btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.12)}
.cta-band .btn-white{background:#fff;color:#3A1CB8;box-shadow:0 10px 26px rgba(12,6,40,.32)}
.cta-band .btn-white:hover{color:#3A1CB8}

/* ---------- footer ---------- */
.site-footer{
  background:var(--foot);position:relative;padding-top:56px;margin-top:72px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(91,59,246,.7),rgba(193,59,255,.7),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;
  padding-bottom:36px;border-bottom:1px solid var(--line);
}
.footer-brand .brand-mark{margin-bottom:12px}
.footer-brand .brand-name{display:inline-block;font-size:17px;font-weight:800;margin-bottom:12px}
.footer-brand p{color:var(--t2);font-size:13.5px;line-height:1.9;max-width:360px}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--t1)}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--t2);font-size:14px}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 28px;color:var(--t3);font-size:13px;flex-wrap:wrap;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:42px}
  .hero-grid{grid-template-columns:minmax(0,1fr) 300px;gap:32px}
}
@media (max-width:1023px){
  :root{--pad:22px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-figure{max-width:520px}
  .page-hero{padding:36px 0 46px}
  .page-hero h1{font-size:36px}
  .section{padding:56px 0}
  .section-head h2{font-size:27px}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .prep{grid-template-columns:1fr;padding:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:767px){
  :root{--pad:18px}
  .header-top-inner{height:56px;gap:12px}
  .brand-name{font-size:15px}
  .search-box{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-primary{display:none}
  .channel-nav{height:0;overflow:hidden;transition:height .24s ease}
  .channel-nav.open{height:auto}
  .channel-inner{height:auto;flex-wrap:wrap;padding:12px 0 14px;gap:8px}
  .page-hero{padding:28px 0 38px}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .section{padding:48px 0}
  .section-head{margin-bottom:24px}
  .section-head h2{font-size:24px}
  .entry-grid{grid-template-columns:1fr}
  .strip{grid-template-columns:1fr}
  .faq-item summary{font-size:16px;padding:16px 18px 16px 20px;gap:10px}
  .faq-answer{padding:0 20px 20px 20px;font-size:14.5px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px;gap:20px}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:480px){
  .page-hero h1{font-size:27px}
  .brand-name{font-size:14px}
  .badge{font-size:13px;height:30px;padding:0 12px}
  .entry-card{padding:18px}
  .btn{font-size:14px;height:42px;padding:0 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}