/* roulang page: index */
:root{
  --primary:#6D28D9;
  --primary-600:#7C3AED;
  --primary-700:#5B21B6;
  --magenta:#A21CAF;
  --accent:#22D3EE;
  --amber:#FACC15;
  --dark:#0E0A1F;
  --dark-2:#150F2E;
  --bg:#F6F4FE;
  --surface:#FFFFFF;
  --line:#E8E4F5;
  --text:#1B1533;
  --text-2:#5B5473;
  --text-3:#8B85A3;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 8px 24px rgba(109,40,217,.08);
  --shadow-hover:0 16px 40px rgba(109,40,217,.16);
  --grad-brand:linear-gradient(135deg,#6D28D9 0%,#A21CAF 100%);
  --grad-neon:linear-gradient(90deg,#6D28D9 0%,#22D3EE 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;color:var(--text)}
p{margin:0}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}
.section{padding:48px 0}
@media(min-width:1024px){.section{padding:72px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:26px;line-height:1.3}
@media(min-width:1024px){.section-head h2{font-size:28px}}
.section-head .sub{color:var(--text-2);font-size:15px;margin-top:8px}
.more-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease,color .2s ease}
.more-link:hover{gap:10px;color:var(--magenta)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(14,10,31,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(34,211,238,.22);
}
.site-header::after{
  content:"";display:block;height:1px;background:var(--grad-neon);opacity:.55;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
@media(min-width:1024px){.nav-inner{height:68px}}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff;letter-spacing:.2px}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:#fff;
  box-shadow:0 0 16px rgba(162,28,175,.55);
}
.nav-menu{display:none;align-items:center;gap:6px}
@media(min-width:1024px){.nav-menu{display:flex}}
.nav-link{
  position:relative;padding:10px 14px;font-size:14.5px;font-weight:600;
  color:rgba(233,229,255,.72);border-radius:10px;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(124,58,237,.18)}
.nav-link.active{color:#fff;text-shadow:0 0 12px rgba(34,211,238,.55)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad-neon);box-shadow:0 0 12px rgba(34,211,238,.75);
}
.nav-cta{
  display:none;
  padding:10px 20px;border-radius:999px;font-size:14px;font-weight:700;color:#fff;
  background:var(--grad-brand);box-shadow:0 6px 18px rgba(109,40,217,.45);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
@media(min-width:1024px){.nav-cta{display:inline-flex}}
.nav-cta:hover{transform:scale(1.03);filter:brightness(1.08);box-shadow:0 10px 26px rgba(162,28,175,.5)}
.nav-cta:active{transform:translateY(1px)}
.burger{
  display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;
  background:transparent;border:1px solid rgba(34,211,238,.5);border-radius:12px;color:#E9E5FF;
  transition:box-shadow .2s ease,background .2s ease;
}
.burger:hover{background:rgba(34,211,238,.12);box-shadow:0 0 16px rgba(34,211,238,.4)}
@media(min-width:1024px){.burger{display:none}}
.mobile-drawer{
  display:none;background:var(--dark-2);border-bottom:1px solid rgba(34,211,238,.2);
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;height:48px;padding:0 20px;font-size:15px;font-weight:600;
  color:rgba(233,229,255,.8);border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-drawer a.active{color:#fff;background:rgba(124,58,237,.22);box-shadow:inset 3px 0 0 #22D3EE}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:700;
  border:none;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 8px 24px rgba(109,40,217,.35)}
.btn-primary:hover{filter:brightness(1.08);transform:scale(1.02);box-shadow:0 12px 30px rgba(162,28,175,.45)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{
  background:transparent;color:#EDE9FE;border:1px solid rgba(34,211,238,.6);
}
.btn-outline:hover{background:rgba(109,40,217,.35);border-color:#22D3EE;box-shadow:0 0 18px rgba(34,211,238,.45)}
.btn-ghost{background:transparent;color:var(--primary);padding:0 6px;height:auto}
.btn-ghost:hover{color:var(--magenta);text-decoration:underline}
.btn:focus-visible,.nav-link:focus-visible,.nav-cta:focus-visible,.burger:focus-visible,a:focus-visible,button:focus-visible{
  outline:3px solid rgba(109,40,217,.55);outline-offset:2px;
}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(900px 420px at 12% -10%,rgba(109,40,217,.55),transparent 62%),
    radial-gradient(700px 380px at 88% 0%,rgba(34,211,238,.24),transparent 60%),
    var(--dark);
  color:#fff;position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.16;mix-blend-mode:luminosity;
}
.hero-inner{position:relative;z-index:2;padding:56px 0 64px}
@media(min-width:1024px){.hero-inner{padding:76px 0 84px}}
.hero-grid{display:grid;gap:40px;grid-template-columns:1fr}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;align-items:center;gap:48px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:#C7F9FF;background:rgba(34,211,238,.12);
  border:1px solid rgba(34,211,238,.42);margin-bottom:20px;
}
.hero h1{
  font-size:28px;line-height:1.28;color:#fff;
  text-shadow:0 0 26px rgba(124,58,237,.45);
}
@media(min-width:768px){.hero h1{font-size:36px}}
@media(min-width:1024px){.hero h1{font-size:40px;line-height:1.22}}
.hero-sub{margin-top:18px;color:rgba(233,229,255,.78);font-size:15.5px;max-width:620px}
@media(min-width:1024px){.hero-sub{font-size:16.5px}}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.data-badge{
  display:flex;align-items:baseline;gap:6px;padding:10px 16px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(233,229,255,.78);
}
.data-badge b{
  font-size:20px;color:#fff;font-variant-numeric:tabular-nums;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:800;
}
.hero-card{
  position:relative;border-radius:var(--radius-lg);padding:3px;background:var(--grad-neon);
  box-shadow:0 24px 60px rgba(109,40,217,.45);
  transition:transform .35s ease,box-shadow .35s ease;
}
.hero-card:hover{transform:translateY(-6px) rotate(-.6deg);box-shadow:0 30px 70px rgba(162,28,175,.5)}
.hero-card-inner{background:var(--dark-2);border-radius:22px;overflow:hidden}
.hero-card img{width:100%;height:230px;object-fit:cover}
@media(min-width:1024px){.hero-card img{height:280px}}
.hero-card-body{padding:20px}
.hero-card-body h3{color:#fff;font-size:18px}
.hero-card-body p{color:rgba(233,229,255,.7);font-size:14px;margin-top:8px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:rgba(109,40,217,.10);color:var(--primary);
  border:1px solid rgba(109,40,217,.18);
}
.chip-dark{background:rgba(34,211,238,.16);color:#A5F3FC;border-color:rgba(34,211,238,.4)}
.score-badge{
  display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;
  background:rgba(250,204,21,.16);color:#FDE68A;font-size:12px;font-weight:700;
  font-variant-numeric:tabular-nums;
}

/* ---------- Bento grid ---------- */
.bento{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:768px){.bento{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.bento{grid-template-columns:repeat(6,1fr)}}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(109,40,217,.28)}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDE9FE}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-cover img{transform:scale(1.04)}
.cover-chip{position:absolute;left:12px;top:12px;background:rgba(14,10,31,.78);color:#C7F9FF;border-color:rgba(34,211,238,.45)}
.cover-badge{position:absolute;right:12px;top:12px;background:rgba(14,10,31,.78);color:#FDE68A}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.4}
.card-body p{color:var(--text-2);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px}
.card-foot .arrow{color:var(--primary);font-weight:700;transition:transform .2s ease}
.card:hover .arrow{transform:translateX(4px)}
.bento-feature{grid-column:span 1}
@media(min-width:1024px){.bento-feature{grid-column:span 6;flex-direction:row}}
.bento-feature .card-cover{aspect-ratio:auto;min-height:240px}
@media(min-width:1024px){
  .bento-feature .card-cover{width:52%;flex:none}
  .bento-feature .card-body{padding:32px}
  .bento-feature .card-body h3{font-size:24px}
  .bento-feature .card-body p{font-size:15.5px;-webkit-line-clamp:3}
}
.bento-item{grid-column:span 1}
@media(min-width:1024px){.bento-item{grid-column:span 3}}
.bento-item:nth-child(2) .card-cover,
.bento-item:nth-child(3) .card-cover{aspect-ratio:16/7}

/* ---------- CMS list ---------- */
.post-list{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:768px){.post-list{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.post-list{grid-template-columns:repeat(3,1fr)}}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(34,211,238,.5)}
.post-card h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card p{color:var(--text-2);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;font-size:12.5px;color:var(--text-3)}
.empty-state{
  border:1px dashed rgba(109,40,217,.4);border-radius:var(--radius-md);background:rgba(255,255,255,.7);
  padding:44px 20px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px;
}
.empty-state .ico{
  width:52px;height:52px;border-radius:16px;background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;
  box-shadow:0 10px 24px rgba(109,40,217,.3);
}
.empty-state p{color:var(--text-2);font-size:15px}

/* ---------- Reviews ---------- */
.reviews-wrap{position:relative}
.review-track{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 20px;
  scroll-snap-type:x mandatory;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 84%;scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px;box-shadow:var(--shadow-card);
}
@media(min-width:768px){.review-card{flex:0 0 44%}}
@media(min-width:1024px){.review-card{flex:0 0 31.5%}}
.review-top{display:flex;align-items:center;gap:12px}
.avatar{
  width:46px;height:46px;border-radius:50%;background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;flex:none;
}
.review-top strong{display:block;font-size:15px}
.review-top span{font-size:12.5px;color:var(--text-3)}
.review-card p{margin-top:14px;color:var(--text-2);font-size:14.5px}
.track-nav{display:flex;gap:10px}
.track-btn{
  width:42px;height:42px;border-radius:50%;background:transparent;color:var(--primary);
  border:1px solid rgba(109,40,217,.45);display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;transition:box-shadow .2s ease,background .2s ease;
}
.track-btn:hover{background:rgba(109,40,217,.1);box-shadow:0 0 16px rgba(34,211,238,.45);border-color:#22D3EE}
.dots{display:flex;gap:8px;justify-content:center;margin-top:6px}
.dot{width:8px;height:8px;border-radius:50%;background:rgba(109,40,217,.25);transition:all .25s ease}
.dot.active{width:22px;background:var(--grad-neon)}

/* ---------- Guarantees ---------- */
.guarantees{background:var(--dark-2);border-radius:var(--radius-lg);padding:36px 24px;position:relative;overflow:hidden}
.guarantees::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 240px at 15% 0%,rgba(109,40,217,.5),transparent 62%),
             radial-gradient(520px 240px at 90% 100%,rgba(34,211,238,.22),transparent 62%);
  opacity:.9;
}
.guarantees-grid{position:relative;z-index:2;display:grid;gap:20px;grid-template-columns:repeat(2,1fr)}
@media(min-width:1024px){.guarantees-grid{grid-template-columns:repeat(4,1fr)}}
.g-item{display:flex;gap:14px;align-items:flex-start}
.g-ico{
  width:40px;height:40px;border-radius:12px;flex:none;display:flex;align-items:center;justify-content:center;
  background:var(--grad-brand);color:#fff;font-weight:800;font-size:15px;
  box-shadow:0 0 18px rgba(162,28,175,.5);
}
.g-item strong{display:block;color:#fff;font-size:15px}
.g-item span{display:block;color:rgba(233,229,255,.66);font-size:13px;margin-top:4px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px}
@media(min-width:1024px){.faq-list{grid-template-columns:1fr 1fr;gap:16px}}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:rgba(109,40,217,.45);box-shadow:var(--shadow-card)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 18px;background:transparent;border:none;text-align:left;
  font-size:15.5px;font-weight:700;color:var(--text);
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  width:24px;height:24px;flex:none;border-radius:8px;background:rgba(109,40,217,.1);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--grad-brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;background:rgba(246,244,254,.85)}
.faq-item.open .faq-a{max-height:320px}
.faq-a-inner{padding:0 18px 18px 22px;color:var(--text-2);font-size:14.5px;border-left:4px solid transparent}
.faq-item.open .faq-a-inner{border-left-color:var(--primary)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;padding:40px 26px;
  background:linear-gradient(135deg,#5B21B6 0%,#A21CAF 100%);
  box-shadow:0 24px 60px rgba(109,40,217,.35);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(420px 220px at 88% 10%,rgba(34,211,238,.4),transparent 65%),
             radial-gradient(360px 200px at 6% 100%,rgba(250,204,21,.18),transparent 65%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-direction:column;gap:22px}
@media(min-width:1024px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:8px 16px}}
.cta-inner h2{color:#fff;font-size:24px;line-height:1.35}
@media(min-width:1024px){.cta-inner h2{font-size:28px}}
.cta-inner p{color:rgba(255,255,255,.82);font-size:15px;margin-top:10px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:none}
.btn-light{background:#fff;color:var(--primary-700)}
.btn-light:hover{filter:brightness(.96);transform:scale(1.02)}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:rgba(233,229,255,.72);margin-top:72px;border-top:1px solid rgba(34,211,238,.22)}
.footer-grid{display:grid;gap:32px;padding:56px 0 36px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr}}
.footer-brand h3{color:#fff;font-size:18px;display:flex;align-items:center;gap:10px}
.footer-brand p{margin-top:14px;font-size:14px;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;padding:6px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#C7F9FF;transform:translateX(3px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:13px;color:rgba(233,229,255,.55);
  display:flex;flex-direction:column;gap:8px;
}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}

/* roulang page: article */
:root{
  --primary:#6D28D9;
  --primary-600:#7C3AED;
  --primary-700:#5B21B6;
  --magenta:#A21CAF;
  --accent:#22D3EE;
  --amber:#FACC15;
  --dark:#0E0A1F;
  --dark-2:#150F2E;
  --bg:#F6F4FE;
  --surface:#FFFFFF;
  --line:#E8E4F5;
  --text:#1B1533;
  --text-2:#5B5473;
  --text-3:#8B85A3;
  --grad-brand:linear-gradient(135deg,#6D28D9 0%,#A21CAF 100%);
  --grad-neon:linear-gradient(90deg,#6D28D9 0%,#22D3EE 100%);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 8px 24px rgba(109,40,217,.08);
  --shadow-hover:0 16px 40px rgba(109,40,217,.16);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--magenta);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:3px solid rgba(109,40,217,.55);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(14,10,31,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(34,211,238,.18);
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;text-decoration:none;white-space:nowrap;}
.logo:hover{color:#fff;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  font-size:12px;font-weight:800;letter-spacing:.5px;color:#fff;
  box-shadow:0 0 18px rgba(124,58,237,.6),inset 0 0 0 1px rgba(34,211,238,.5);
}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:block;padding:10px 14px;
  font-size:15px;font-weight:600;color:rgba(233,229,255,.72);
  border-radius:10px;text-decoration:none;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(124,58,237,.2);}
.nav-link.active{color:#fff;text-shadow:0 0 14px rgba(34,211,238,.75);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  border-radius:2px;background:var(--grad-neon);
}
.nav-cta{
  margin-left:12px;padding:10px 20px;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 6px 18px rgba(124,58,237,.45);
  transition:transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{color:#fff;transform:translateY(-1px) scale(1.02);box-shadow:0 10px 26px rgba(162,28,175,.5);}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  background:rgba(124,58,237,.18);border:1px solid rgba(34,211,238,.5);
  color:#fff;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:4px auto;background:#fff;border-radius:2px;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:linear-gradient(180deg,#150F2E 0%,#1B1440 100%);border-bottom:1px solid rgba(34,211,238,.14);}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow:hidden;padding:14px 0;font-size:13px;color:rgba(233,229,255,.6);}
.crumb a{color:rgba(233,229,255,.75);text-decoration:none;}
.crumb a:hover{color:#fff;}
.crumb .sep{color:rgba(233,229,255,.35);}
.crumb .now{color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60%;}

/* ---------- article head ---------- */
.article-head{
  background:
    radial-gradient(900px 320px at 88% -10%,rgba(162,28,175,.4),transparent 62%),
    radial-gradient(700px 280px at 5% 0%,rgba(34,211,238,.18),transparent 60%),
    linear-gradient(180deg,#150F2E 0%,#150F2E 70%,#F6F4FE 100%);
  padding:38px 0 54px;
}
.article-head-inner{max-width:880px;}
.h1-cat{
  display:inline-block;margin-bottom:14px;padding:5px 14px;border-radius:999px;
  font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--accent);
  border:1px solid rgba(34,211,238,.55);background:rgba(34,211,238,.1);
}
.article-h1{font-size:40px;line-height:1.24;color:#fff;margin-bottom:18px;font-weight:800;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:rgba(233,229,255,.72);}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(233,229,255,.18);color:rgba(233,229,255,.85);
}
.meta-chip.accent{border-color:rgba(34,211,238,.55);color:#B9F3FB;background:rgba(34,211,238,.12);}
.meta-chip.amber{border-color:rgba(250,204,21,.55);color:#FDE68A;background:rgba(250,204,21,.12);}
.head-summary{margin-top:18px;max-width:760px;font-size:15px;line-height:1.9;color:rgba(233,229,255,.72);}

/* ---------- layout ---------- */
.main-wrap{padding:56px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;}
.article-main{min-width:0;}
.article-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:36px 40px;box-shadow:var(--shadow-card);
}

/* ---------- article body ---------- */
.article-body{max-width:780px;font-size:17px;line-height:1.9;color:var(--text);}
.article-body > * + *{margin-top:1.2em;}
.article-body p{margin:1.2em 0 0;color:#241C40;}
.article-body h2{
  position:relative;margin:2.2em 0 .8em;padding-left:16px;
  font-size:28px;line-height:1.35;font-weight:800;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:5px;border-radius:4px;background:var(--grad-brand);
}
.article-body h3{margin:1.8em 0 .6em;font-size:20px;font-weight:800;color:var(--primary-700);}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:700;color:var(--text);}
.article-body ul,.article-body ol{margin:1.1em 0 0;padding-left:1.4em;}
.article-body li{margin:.5em 0;color:#241C40;}
.article-body li::marker{color:var(--primary-600);font-weight:700;}
.article-body img{
  border-radius:16px;margin:1.6em auto;box-shadow:var(--shadow-card);
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--text-3);}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;border-left:4px solid var(--primary);
  background:#F4F0FE;border-radius:0 14px 14px 0;color:#33295C;
}
.article-body blockquote p{margin:.4em 0;color:#33295C;}
.article-body a{color:var(--primary-700);font-weight:600;border-bottom:1px solid rgba(109,40,217,.35);}
.article-body a:hover{color:var(--magenta);border-bottom-color:var(--magenta);}
.article-body table{
  width:100%;margin:1.6em 0;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:15px;
}
.article-body thead th{background:var(--dark-2);color:#fff;font-weight:700;padding:12px 16px;text-align:left;}
.article-body tbody td{padding:12px 16px;border-top:1px solid var(--line);color:#33295C;}
.article-body tbody tr:nth-child(even) td{background:#FAF8FF;}
.article-body code{
  padding:2px 7px;border-radius:6px;background:#F1ECFE;color:var(--primary-700);
  font-size:14px;font-family:ui-monospace,Menlo,Consolas,monospace;
}
.article-body pre{
  margin:1.5em 0;padding:18px 20px;border-radius:16px;background:var(--dark);
  color:#E9E5FF;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body hr{margin:2.4em 0;border:0;border-top:1px dashed var(--line);}

/* ---------- empty state ---------- */
.article-empty{
  text-align:center;padding:60px 24px;border:1px dashed var(--line);border-radius:var(--radius-lg);background:#FCFBFF;
}
.article-empty .icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;display:grid;place-items:center;
  background:rgba(124,58,237,.1);color:var(--primary-600);font-size:24px;font-weight:800;
}
.article-empty h2{font-size:22px;margin-bottom:10px;}
.article-empty p{color:var(--text-2);font-size:15px;margin-bottom:22px;}

/* ---------- sidebar ---------- */
.side-col{display:grid;gap:20px;position:sticky;top:92px;}
.side-box{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 22px 24px;box-shadow:var(--shadow-card);
}
.side-title{
  display:flex;align-items:center;gap:8px;font-size:15px;font-weight:800;color:var(--text);margin-bottom:14px;
}
.side-title::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--grad-neon);}
.toc-list{list-style:none;padding:0;margin:0;display:grid;gap:2px;max-height:320px;overflow:auto;}
.toc-list a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;transition:.2s ease;
}
.toc-list a:hover{background:#F6F3FF;color:var(--primary-700);border-left-color:var(--primary-600);}
.rec-list{display:grid;gap:12px;}
.rec-item{display:flex;gap:12px;align-items:center;padding:8px;border-radius:12px;transition:.2s ease;}
.rec-item:hover{background:#F8F6FF;transform:translateX(3px);}
.rec-item img{width:64px;height:48px;object-fit:cover;border-radius:10px;flex:0 0 64px;}
.rec-item .t{font-size:14px;font-weight:700;color:var(--text);line-height:1.5;}
.rec-item .d{font-size:12px;color:var(--text-3);margin-top:2px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-block;padding:6px 12px;border-radius:999px;font-size:13px;
  color:var(--primary-700);background:#F3EFFE;border:1px solid #E4DBFB;transition:.2s ease;
}
.tag:hover{background:var(--grad-brand);color:#fff;border-color:transparent;}

/* ---------- related cards ---------- */
.related-block{margin-top:44px;}
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.block-head h2{font-size:28px;}
.block-head p{margin-top:6px;font-size:14px;color:var(--text-2);}
.link-more{font-size:14px;font-weight:700;color:var(--primary-600);white-space:nowrap;}
.link-more:hover{text-decoration:underline;}
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.rel-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.rel-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDE9FB;}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .thumb img{transform:scale(1.04);}
.rel-card .body{padding:18px 20px 20px;}
.rel-card h3{font-size:17px;line-height:1.5;color:var(--text);margin-bottom:8px;}
.rel-card p{font-size:14px;color:var(--text-2);line-height:1.7;}
.rel-card .foot{margin-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-3);}
.rel-card .arrow{color:var(--primary-600);font-weight:800;transition:transform .2s ease;}
.rel-card:hover .arrow{transform:translateX(3px);}
.chip{
  position:absolute;left:12px;top:12px;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:700;color:#fff;background:rgba(14,10,31,.72);backdrop-filter:blur(6px);
}
.badge-amber{
  position:absolute;right:12px;top:12px;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:800;color:#3B2C00;background:var(--amber);
  font-variant-numeric:tabular-nums;
}

/* ---------- back bar / cta ---------- */
.back-bar{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 8px 22px rgba(124,58,237,.35);}
.btn-primary:hover{color:#fff;transform:translateY(-1px) scale(1.02);box-shadow:0 14px 30px rgba(162,28,175,.42);}
.btn-primary:active{transform:translateY(1px) scale(1);}
.btn-ghost{
  background:transparent;color:#fff;border-color:rgba(34,211,238,.6);
  box-shadow:inset 1px 1px 0 rgba(34,211,238,.35);
}
.btn-ghost:hover{background:rgba(124,58,237,.24);color:#fff;box-shadow:0 0 18px rgba(34,211,238,.4);}
.btn-outline{
  background:#fff;color:var(--primary-700);border-color:#DCD3F8;
}
.btn-outline:hover{color:var(--primary-700);border-color:var(--primary-600);background:#F7F4FF;transform:translateY(-1px);}

.cta-band{margin-top:56px;}
.cta-card{
  position:relative;overflow:hidden;border-radius:28px;padding:44px 44px;
  background:linear-gradient(135deg,#2A1160 0%,#5B21B6 46%,#A21CAF 100%);
  box-shadow:0 22px 50px rgba(91,33,182,.32);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-card::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,211,238,.42),transparent 65%);
}
.cta-card h2{font-size:28px;color:#fff;margin-bottom:10px;}
.cta-card p{font-size:15px;color:rgba(255,255,255,.82);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);border-top:1px solid rgba(34,211,238,.16);margin-top:72px;padding:56px 0 26px;color:rgba(233,229,255,.7);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand h3{display:flex;align-items:center;gap:10px;font-size:17px;color:#fff;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(233,229,255,.62);max-width:340px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:14px;color:rgba(233,229,255,.66);padding:5px 0;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:var(--accent);transform:translateX(3px);}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(233,229,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(233,229,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-toggle{display:block;}
  .nav-menu{
    position:absolute;left:0;right:0;top:68px;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#150F2E;padding:14px 20px 20px;
    border-bottom:1px solid rgba(34,211,238,.24);
    box-shadow:0 20px 40px rgba(0,0,0,.4);
    display:none;
  }
  .nav-menu.open{display:flex;}
  .nav-link{font-size:16px;padding:14px 12px;}
  .nav-link.active::after{left:12px;right:auto;width:38px;}
  .nav-cta{margin:10px 0 0;text-align:center;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .side-col{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-h1{font-size:32px;}
  .article-card{padding:28px 26px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .header-inner{height:60px;}
  .article-head{padding:28px 0 40px;}
  .article-h1{font-size:28px;line-height:1.35;}
  .head-summary{font-size:14px;}
  .main-wrap{padding:36px 0 56px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .block-head h2{font-size:22px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .side-col{grid-template-columns:minmax(0,1fr);}
  .cta-card{padding:30px 24px;border-radius:22px;}
  .cta-card h2{font-size:22px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
  .crumb .now{max-width:52%;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .article-card{padding:22px 18px;border-radius:18px;}
  .article-head{padding:22px 0 32px;}
  .article-h1{font-size:24px;}
  .logo{font-size:16px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .btn{width:100%;}
  .back-bar .btn{width:100%;}
  .cta-actions{width:100%;}
}

/* roulang page: category2 */
:root{
  --primary:#6D28D9;
  --primary-600:#7C3AED;
  --primary-700:#5B21B6;
  --magenta:#A21CAF;
  --accent:#22D3EE;
  --amber:#FACC15;
  --dark:#0E0A1F;
  --dark-2:#150F2E;
  --bg:#F6F4FE;
  --surface:#FFFFFF;
  --line:#E8E4F5;
  --text:#1B1533;
  --text-2:#5B5473;
  --text-3:#8B85A3;
  --grad-brand:linear-gradient(135deg,#6D28D9 0%,#A21CAF 100%);
  --grad-neon:linear-gradient(90deg,#6D28D9 0%,#22D3EE 100%);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-1:0 8px 24px rgba(109,40,217,.08);
  --shadow-2:0 16px 40px rgba(109,40,217,.16);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
button{font-family:inherit;cursor:pointer;border:0;background:none}
ul,ol{list-style:none}
h1,h2,h3,h4{font-weight:800;line-height:1.3;letter-spacing:.2px}
:focus-visible{outline:3px solid rgba(109,40,217,.45);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--dark-2);
  box-shadow:0 6px 24px rgba(14,10,31,.35);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:var(--grad-neon);opacity:.65;
}
.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:#fff}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:#fff;letter-spacing:.5px;
  box-shadow:0 0 18px rgba(162,28,175,.5);
}
.brand-text{font-size:17px;font-weight:800;color:#fff;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:999px;
  font-size:14px;font-weight:600;
  color:rgba(233,229,255,.72);
  white-space:nowrap;
}
.nav-link:hover{color:#fff}
.nav-link.active{color:#fff;text-shadow:0 0 12px rgba(34,211,238,.6)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--grad-neon);
  box-shadow:0 0 10px rgba(34,211,238,.8);
}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:40px;border-radius:12px;
  border:1px solid rgba(34,211,238,.45);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:rgba(233,229,255,.85)}
.nav-toggle:hover{background:rgba(34,211,238,.1)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;
  padding:12px 24px;font-size:15px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,filter .2s ease;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 26px rgba(109,40,217,.32)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px) scale(1.02);box-shadow:0 14px 34px rgba(162,28,175,.4)}
.btn-primary:active{transform:translateY(1px) scale(.99)}
.btn-outline{
  background:transparent;color:#fff;
  border:1px solid rgba(34,211,238,.6);
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.12);
}
.btn-outline:hover{background:rgba(109,40,217,.35);border-color:rgba(34,211,238,.95);box-shadow:0 0 18px rgba(34,211,238,.35)}
.btn-light{background:#fff;color:var(--primary-700);box-shadow:0 10px 26px rgba(14,10,31,.18)}
.btn-light:hover{transform:translateY(-1px) scale(1.02);color:var(--primary)}
.btn-ghost{color:var(--primary);padding:8px 4px;font-weight:700}
.btn-ghost:hover{color:var(--magenta);text-decoration:underline}
.btn-sm{padding:9px 18px;font-size:13.5px}
@media (max-width:1023px){
  .nav-menu{
    position:fixed;top:69px;left:0;right:0;
    background:var(--dark-2);
    flex-direction:column;align-items:stretch;gap:2px;
    padding:12px 16px 20px;
    border-bottom:1px solid rgba(34,211,238,.28);
    display:none;
    box-shadow:0 20px 40px rgba(14,10,31,.45);
  }
  .nav-menu.open{display:flex}
  .nav-link{padding:13px 14px;border-radius:12px;font-size:15px;min-height:48px;display:flex;align-items:center}
  .nav-link.active::after{display:none}
  .nav-link.active{background:rgba(109,40,217,.35);box-shadow:inset 0 0 0 1px rgba(34,211,238,.5)}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-sm{display:none}
}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background:var(--dark);
  color:#fff;
  padding:44px 0 52px;
  border-bottom:1px solid rgba(34,211,238,.28);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity:.22;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 320px at 82% 18%,rgba(162,28,175,.42),transparent 65%),
             radial-gradient(520px 260px at 8% 88%,rgba(34,211,238,.26),transparent 70%),
             linear-gradient(180deg,rgba(14,10,31,.72),rgba(14,10,31,.94));
}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(233,229,255,.62);margin-bottom:16px}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{color:rgba(233,229,255,.35)}
.hero-row{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:28px;align-items:center}
.cat-hero h1{font-size:34px;line-height:1.24;color:#fff;letter-spacing:.3px}
.cat-hero .hero-sub{margin-top:12px;font-size:15.5px;color:rgba(233,229,255,.78);max-width:720px;line-height:1.85}
.hero-deco{position:relative;height:150px}
.hero-deco .ring{
  position:absolute;border-radius:50%;border:1px solid rgba(34,211,238,.45);
}
.hero-deco .ring:nth-child(1){width:140px;height:140px;right:10px;top:0;box-shadow:0 0 30px rgba(34,211,238,.28) inset}
.hero-deco .ring:nth-child(2){width:92px;height:92px;right:58px;top:34px;border-color:rgba(162,28,175,.6)}
.hero-deco .dot{
  position:absolute;width:56px;height:56px;border-radius:18px;
  background:var(--grad-brand);right:24px;bottom:4px;
  box-shadow:0 0 30px rgba(162,28,175,.55);
}
@media (max-width:900px){
  .hero-row{grid-template-columns:1fr}
  .hero-deco{display:none}
  .cat-hero h1{font-size:26px}
}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1.4px;
  text-transform:uppercase;
  color:var(--primary);
  background:rgba(109,40,217,.08);
  border:1px solid rgba(109,40,217,.16);
  padding:6px 14px;border-radius:999px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--grad-neon)}
.section-head h2{font-size:28px;color:var(--text)}
.section-desc{margin-top:12px;color:var(--text-2);font-size:15.5px;line-height:1.85}

/* ---------- stats ---------- */
.stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:9px 18px;display:flex;align-items:center;gap:8px;
  box-shadow:var(--shadow-1);
}
.stat b{font-size:19px;font-variant-numeric:tabular-nums;color:var(--primary-700)}
.stat span{font-size:13px;color:var(--text-3)}

/* ---------- steps / timeline ---------- */
.steps{position:relative;padding-top:6px}
.steps::before{
  content:"";position:absolute;left:23px;top:14px;bottom:20px;width:2px;
  background:linear-gradient(180deg,#6D28D9 0%,#22D3EE 62%,rgba(34,211,238,0) 100%);
}
.step{position:relative;padding-left:78px;margin-bottom:22px}
.step:last-child{margin-bottom:0}
.step-index{
  position:absolute;left:0;top:2px;z-index:2;
  width:48px;height:48px;border-radius:50%;
  background:#fff;border:1px solid #DDD6FE;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:var(--primary);
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 5px var(--bg),0 6px 18px rgba(109,40,217,.14);
}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#DDD6FE}
.step-card h3{font-size:19px;margin-bottom:8px}
.step-card p{color:var(--text-2);font-size:15px;line-height:1.85}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:700;
  padding:5px 12px;border-radius:999px;
  background:rgba(109,40,217,.09);color:var(--primary-700);
  border:1px solid rgba(109,40,217,.14);
}
.chip-accent{background:rgba(34,211,238,.12);color:#0E7490;border-color:rgba(34,211,238,.32)}
.chip-amber{background:rgba(250,204,21,.16);color:#92400E;border-color:rgba(250,204,21,.4)}
@media (max-width:640px){
  .steps::before{display:none}
  .step{padding-left:0}
  .step-index{position:static;margin-bottom:12px;box-shadow:0 6px 18px rgba(109,40,217,.14)}
}

/* ---------- module cards ---------- */
.module-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.m-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.m-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.m-card figure{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EFECFB}
.m-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.m-card:hover figure img{transform:scale(1.04)}
.m-card .m-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.m-card h3{font-size:19px}
.m-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;flex:1}
.m-card .m-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13.5px;font-weight:700;color:var(--primary)}
.m-card .m-foot .arrow{transition:transform .2s ease}
.m-card:hover .m-foot .arrow{transform:translateX(4px)}
@media (max-width:1023px){.module-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.module-grid{grid-template-columns:1fr}}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}
.split-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(109,40,217,.16);
  box-shadow:var(--shadow-1);
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  min-height:320px;
}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(14,10,31,.5),rgba(109,40,217,.55));
}
.split-media .media-tag{
  position:absolute;z-index:2;left:20px;bottom:20px;
  background:rgba(14,10,31,.72);color:#fff;
  border:1px solid rgba(34,211,238,.45);
  border-radius:999px;padding:7px 16px;font-size:13px;font-weight:700;
  backdrop-filter:blur(4px);
}
.split-text h2{font-size:26px;margin-bottom:14px}
.split-text p{color:var(--text-2);font-size:15.5px;line-height:1.9;margin-bottom:14px}
.check-list li{
  position:relative;padding-left:30px;margin-bottom:10px;
  color:var(--text-2);font-size:15px;line-height:1.8;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:16px;height:16px;border-radius:6px;
  background:var(--grad-neon);opacity:.9;
}
@media (max-width:900px){.split{grid-template-columns:1fr;gap:24px}.split-media{min-height:220px}}

/* ---------- faq ---------- */
.faq{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:rgba(109,40,217,.35);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;text-align:left;
  font-size:16px;font-weight:700;color:var(--text);
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(109,40,217,.1);color:var(--primary);font-size:17px;font-weight:800;
  transition:transform .2s ease,background .2s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--grad-brand);color:#fff}
.faq-a{display:none;padding:0 20px 18px 20px;border-left:4px solid transparent}
.faq-item.open .faq-a{
  display:block;border-left-color:var(--primary);
  background:rgba(109,40,217,.04);
  padding:14px 20px 18px 18px;
}
.faq-a p{color:var(--text-2);font-size:15px;line-height:1.9}

/* ---------- related links ---------- */
.rel-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.rel-item{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:18px 20px;font-weight:700;font-size:15px;color:var(--text);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#DDD6FE;color:var(--primary-700)}
.rel-item .arrow{color:var(--primary);transition:transform .2s ease}
.rel-item:hover .arrow{transform:translateX(3px)}
@media (max-width:900px){.rel-links{grid-template-columns:1fr}}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--grad-brand);
  color:#fff;padding:38px 34px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  box-shadow:0 20px 50px rgba(109,40,217,.28);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(420px 200px at 92% 12%,rgba(34,211,238,.35),transparent 70%),
             radial-gradient(360px 200px at 6% 92%,rgba(250,204,21,.18),transparent 70%);
}
.cta-band>*{position:relative;z-index:2}
.cta-band h2{font-size:25px;color:#fff}
.cta-band p{margin-top:8px;font-size:14.5px;color:rgba(255,255,255,.86);max-width:560px;line-height:1.8}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:640px){.cta-band{padding:28px 22px}.cta-band h2{font-size:21px}}

/* ---------- footer ---------- */
.site-footer{
  background:var(--dark);color:rgba(233,229,255,.72);
  padding:56px 0 24px;margin-top:8px;
  border-top:1px solid rgba(34,211,238,.28);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand h3{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;margin-bottom:12px}
.footer-brand p{font-size:13.5px;line-height:1.9;color:rgba(233,229,255,.66);max-width:340px}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:14px;letter-spacing:.4px}
.footer-col a{display:block;font-size:13.5px;padding:5px 0;color:rgba(233,229,255,.68)}
.footer-col a:hover{color:#fff;text-shadow:0 0 10px rgba(34,211,238,.55)}
.footer-bottom{
  margin-top:40px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12.5px;color:rgba(233,229,255,.5);
}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}

@media (max-width:640px){
  .section{padding:44px 0}
  .section-head h2{font-size:22px}
  .split-text h2{font-size:21px}
  .cat-hero{padding:32px 0 40px}
}

/* roulang page: category1 */
:root{
  --primary:#6D28D9;
  --primary-600:#7C3AED;
  --primary-700:#5B21B6;
  --magenta:#A21CAF;
  --accent:#22D3EE;
  --amber:#FACC15;
  --dark:#0E0A1F;
  --dark-2:#150F2E;
  --bg:#F6F4FE;
  --surface:#FFFFFF;
  --line:#E8E4F5;
  --text:#1B1533;
  --text-2:#5B5473;
  --text-3:#8B85A3;
  --grad:linear-gradient(135deg,#6D28D9,#A21CAF);
  --neon:linear-gradient(90deg,#6D28D9,#22D3EE);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 8px 24px rgba(109,40,217,.08);
  --sh-2:0 16px 40px rgba(109,40,217,.16);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(124,58,237,.22)}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(14,10,31,.93);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(124,58,237,.32);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:var(--neon);opacity:.55;
}
.header-inner{display:flex;align-items:center;gap:22px;height:68px;position:relative}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff;white-space:nowrap}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--grad);color:#fff;font-size:13px;font-weight:800;letter-spacing:.04em;
  box-shadow:0 0 18px rgba(162,28,175,.55);
}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:999px;font-size:14.5px;font-weight:600;
  color:rgba(233,229,255,.72);transition:color .2s,background .2s,text-shadow .2s;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--neon);transform:scaleX(0);transform-origin:left;transition:transform .22s;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:#fff;text-shadow:0 0 10px rgba(34,211,238,.6)}
.nav-link.active::after{transform:scaleX(1)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;border-radius:999px;
  background:var(--grad);color:#fff;font-size:14.5px;font-weight:700;
  box-shadow:0 8px 22px rgba(124,58,237,.4);
  transition:transform .2s,box-shadow .2s,filter .2s;
}
.nav-cta:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 12px 28px rgba(162,28,175,.5)}
.nav-cta:active{transform:translateY(0)}
.nav-cta:focus-visible{outline:3px solid rgba(34,211,238,.6);outline-offset:2px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:40px;border-radius:12px;background:transparent;cursor:pointer;
  border:1px solid rgba(34,211,238,.5);
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.15);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#E9E5FF;position:relative}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:#E9E5FF;
  transition:transform .2s,top .2s;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}

@media (max-width:1023px){
  .header-inner{height:60px;gap:12px}
  .nav-menu{
    position:absolute;top:60px;left:-20px;right:-20px;
    flex-direction:column;align-items:stretch;gap:2px;margin:0;
    background:var(--dark-2);
    border-top:1px solid rgba(124,58,237,.35);
    border-bottom:1px solid rgba(124,58,237,.45);
    box-shadow:0 24px 40px rgba(14,10,31,.5);
    padding:10px 20px 18px;display:none;
  }
  .nav-menu.open{display:flex}
  .nav-link{height:48px;padding:0 14px;border-radius:12px;font-size:15px}
  .nav-link::after{display:none}
  .nav-link.active{background:rgba(124,58,237,.24);box-shadow:inset 0 0 0 1px rgba(34,211,238,.45)}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
}

/* ---------- 分类 Hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;border-bottom:1px solid rgba(124,58,237,.35)}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.3;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 300px at 84% 0%,rgba(162,28,175,.5),transparent 66%),
    radial-gradient(600px 260px at 4% 100%,rgba(34,211,238,.24),transparent 70%),
    linear-gradient(180deg,rgba(14,10,31,.55),rgba(21,15,46,.96));
}
.cat-hero .hero-inner{
  position:relative;z-index:2;
  min-height:186px;display:flex;flex-direction:column;justify-content:center;
  padding:34px 0 36px;max-width:840px;
}
.cat-hero h1{font-size:34px;line-height:1.22;margin-top:14px;text-shadow:0 6px 26px rgba(14,10,31,.6)}
.cat-hero .hero-desc{margin-top:14px;font-size:15.5px;color:rgba(233,229,255,.76);max-width:660px}
.hero-orn{
  position:absolute;right:-60px;top:50%;transform:translateY(-50%);
  width:280px;height:280px;border-radius:50%;z-index:2;pointer-events:none;
  background:radial-gradient(circle at 35% 35%,rgba(34,211,238,.34),transparent 62%);
  border:1px solid rgba(34,211,238,.28);
}
.hero-orn::after{
  content:"";position:absolute;inset:38px;border-radius:50%;
  border:1px dashed rgba(162,28,175,.5);
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(233,229,255,.6);flex-wrap:wrap}
.breadcrumb a{color:rgba(233,229,255,.78);transition:color .2s}
.breadcrumb a:hover{color:#fff;text-shadow:0 0 10px rgba(34,211,238,.6)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#fff;font-weight:600}
@media (max-width:767px){
  .cat-hero h1{font-size:26px}
  .cat-hero .hero-inner{padding:28px 0 30px;min-height:170px}
  .hero-orn{width:180px;height:180px;right:-70px}
}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:76px 0}}
.section-head{max-width:740px;margin-bottom:34px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--primary-600);
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--neon)}
.section-head h2{font-size:27px;margin-top:12px}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15.5px}
@media (max-width:767px){
  .section-head h2{font-size:22px}
}

/* ---------- 数据徽章条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;
  margin-top:-34px;position:relative;z-index:5;
}
.stat-badge{
  display:flex;align-items:center;gap:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 22px;box-shadow:var(--sh-1);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.stat-badge:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D9CFF7}
.stat-badge .num{
  font-size:30px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-badge .unit{font-size:13px;font-weight:700;color:var(--magenta);align-self:flex-start;margin-top:2px}
.stat-badge .txt{font-size:14px;color:var(--text-2);line-height:1.5}
@media (max-width:600px){
  .stat-strip{grid-template-columns:1fr;margin-top:-26px}
}

/* ---------- 交错图文 ---------- */
.row-block{
  display:grid;grid-template-columns:55% 45%;gap:30px;align-items:center;
  padding:26px 0;
}
.row-block + .row-block{margin-top:22px}
.row-block.flip{grid-template-columns:45% 55%}
.row-block.flip .row-media{order:2}
.row-block.flip .row-body{order:1}
.row-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .3s,box-shadow .3s;
  aspect-ratio:16/10;
}
.row-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.row-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:60%;
  background:linear-gradient(180deg,transparent,rgba(14,10,31,.42));
}
.row-block:hover .row-media{transform:translateY(-4px);box-shadow:var(--sh-2)}
.row-block:hover .row-media img{transform:scale(1.04)}
.step-badge{
  position:absolute;top:16px;left:16px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(14,10,31,.82);color:#fff;
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.55),0 0 16px rgba(34,211,238,.3);
}
.row-body h3{font-size:21px;margin-bottom:12px}
.row-body > p{color:var(--text-2);font-size:15.5px}
.plain-list{margin-top:16px;display:grid;gap:10px}
.plain-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--text-2);line-height:1.7;
}
.plain-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:8px;height:8px;border-radius:50%;background:var(--grad);
}
.plain-list li strong{color:var(--text);font-weight:700}
@media (max-width:900px){
  .row-block,.row-block.flip{grid-template-columns:1fr;gap:20px;padding:18px 0}
  .row-block.flip .row-media{order:1}
  .row-block.flip .row-body{order:2}
}

/* ---------- 检查清单卡片 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.check-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 22px;box-shadow:var(--sh-1);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D9CFF7}
.check-icon{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(124,58,237,.12);color:var(--primary-600);font-size:18px;font-weight:800;
  border:1px solid rgba(124,58,237,.2);
}
.check-card h4{font-size:16px;margin:16px 0 8px}
.check-card p{font-size:14px;color:var(--text-2);line-height:1.7}
@media (max-width:1023px){.check-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.check-grid{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;transition:border-color .25s,box-shadow .25s;
}
.faq-item:hover{border-color:#D9CFF7}
.faq-item.open{border-color:rgba(124,58,237,.4);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:700;color:var(--text);
}
.faq-q:focus-visible{outline:3px solid rgba(109,40,217,.45);outline-offset:-3px}
.faq-sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;color:var(--primary-600);
  background:rgba(124,58,237,.1);transition:transform .2s,background .2s,color .2s;
}
.faq-item.open .faq-sign{transform:rotate(180deg);background:var(--grad);color:#fff}
.faq-a{
  position:relative;max-height:0;overflow:hidden;
  transition:max-height .28s ease;
}
.faq-item.open .faq-a{max-height:420px}
.faq-a-inner{
  padding:0 22px 20px 22px;
  font-size:15px;color:var(--text-2);line-height:1.8;
  border-left:4px solid transparent;
}
.faq-item.open .faq-a-inner{
  border-left-color:transparent;
  background:rgba(246,244,254,.85);
  padding:16px 22px 20px 22px;
  border-left:4px solid var(--primary-600);
}

/* ---------- 相关链接 ---------- */
.link-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.link-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.link-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D9CFF7}
.link-card .tag{
  align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:4px 10px;border-radius:999px;
  color:var(--primary-700);background:rgba(124,58,237,.12);
}
.link-card h3{font-size:17px}
.link-card p{font-size:14px;color:var(--text-2);line-height:1.7}
.link-card .go{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--primary-600);
}
.link-card .go .arrow{transition:transform .2s}
.link-card:hover .go .arrow{transform:translateX(3px)}
@media (max-width:900px){.link-grid{grid-template-columns:1fr}}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);padding:38px 34px;
  background:linear-gradient(135deg,#6D28D9 0%,#A21CAF 62%,#5B21B6 100%);
  color:#fff;display:flex;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:0 20px 46px rgba(109,40,217,.32);
}
.cta-card::before{
  content:"";position:absolute;right:-70px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,211,238,.45),transparent 66%);
}
.cta-card::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(500px 200px at 8% 110%,rgba(255,255,255,.16),transparent 70%);
}
.cta-card > *{position:relative;z-index:2}
.cta-card h2{font-size:24px;line-height:1.35}
.cta-card p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.86);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  white-space:nowrap;transition:transform .2s,box-shadow .2s,background .2s,color .2s;
}
.btn:focus-visible{outline:3px solid rgba(34,211,238,.7);outline-offset:2px}
.btn-light{background:#fff;color:var(--primary-700);box-shadow:0 10px 26px rgba(14,10,31,.24)}
.btn-light:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 14px 32px rgba(14,10,31,.3)}
.btn-light:active{transform:translateY(1px)}
.btn-line{
  background:transparent;color:#fff;border-color:rgba(255,255,255,.6);
}
.btn-line:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-line:active{transform:translateY(1px)}
@media (max-width:900px){
  .cta-card{flex-direction:column;align-items:flex-start;padding:30px 22px}
  .cta-card h2{font-size:20px}
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--dark);color:rgba(233,229,255,.72);
  padding:56px 0 26px;margin-top:20px;
  border-top:1px solid rgba(124,58,237,.35);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:var(--neon);opacity:.5;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;
}
.footer-brand h3{
  display:flex;align-items:center;gap:10px;
  font-size:17px;color:#fff;margin-bottom:14px;
}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(233,229,255,.6);max-width:320px}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.footer-col a{
  display:block;font-size:14px;color:rgba(233,229,255,.62);
  padding:5px 0;transition:color .2s,transform .2s;
}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(124,58,237,.25);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(233,229,255,.46);
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category3 */
:root{
  --primary:#6D28D9; --primary-600:#7C3AED; --primary-700:#5B21B6;
  --magenta:#A21CAF; --accent:#22D3EE; --amber:#FACC15;
  --dark:#0E0A1F; --dark-2:#150F2E;
  --bg:#F6F4FE; --surface:#FFFFFF; --line:#E8E4F5;
  --text:#1B1533; --text-2:#5B5473; --text-3:#8B85A3;
  --radius-lg:24px; --radius-md:16px; --radius-sm:12px;
  --shadow-card:0 8px 24px rgba(109,40,217,.08);
  --shadow-hover:0 16px 40px rgba(109,40,217,.16);
  --grad-brand:linear-gradient(135deg,#6D28D9,#A21CAF);
  --grad-neon:linear-gradient(90deg,#6D28D9,#22D3EE);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0}
:where(a,button,input,summary):focus-visible{outline:3px solid rgba(124,58,237,.5);outline-offset:2px;border-radius:10px}

/* 容器 */
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(14,10,31,.94);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(34,211,238,.18);
}
.header-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font-weight:800;font-size:19px;letter-spacing:.3px;white-space:nowrap}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--grad-brand);
  color:#fff;font-size:13px;font-weight:800;letter-spacing:.5px;
  box-shadow:0 0 18px rgba(162,28,175,.55);flex:none;
}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-block;padding:9px 14px;border-radius:999px;
  color:rgba(233,229,255,.72);font-size:15px;font-weight:500;text-decoration:none;
  transition:color .2s,background .2s;
}
.nav-link:hover{color:#fff;background:rgba(124,58,237,.22)}
.nav-link.active{color:#fff;text-shadow:0 0 14px rgba(34,211,238,.6)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;
  background:var(--grad-neon);box-shadow:0 0 10px rgba(34,211,238,.85);
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:transparent;
  border:1px solid rgba(34,211,238,.45);flex-direction:column;align-items:center;justify-content:center;
  gap:5px;cursor:pointer;transition:box-shadow .2s,border-color .2s;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#E9E5FF;transition:.2s}
.nav-toggle:hover{border-color:var(--accent);box-shadow:0 0 18px rgba(34,211,238,.45)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 8px 22px rgba(109,40,217,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(162,28,175,.45)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(34,211,238,.55)}
.btn-ghost:hover{background:rgba(34,211,238,.12);border-color:var(--accent);box-shadow:0 0 18px rgba(34,211,238,.4)}
.btn-outline{background:#fff;color:var(--primary-700);border-color:var(--line);box-shadow:var(--shadow-card)}
.btn-outline:hover{border-color:var(--primary-600);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-hover)}

/* 分类 Hero */
.cat-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(120% 150% at 88% 10%,rgba(162,28,175,.5) 0%,rgba(34,211,238,.14) 42%,transparent 72%),
    linear-gradient(135deg,#0E0A1F 0%,#150F2E 58%,#1E1147 100%);
  border-bottom:1px solid rgba(34,211,238,.22);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:44px 44px;mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 85%);
}
.cat-hero-wrap{position:relative;z-index:2;display:flex;align-items:center;min-height:212px}
.cat-hero-inner{position:relative;z-index:3;max-width:660px;padding:30px 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(233,229,255,.5)}
.breadcrumb a{color:rgba(233,229,255,.78);text-decoration:none;transition:color .2s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .current{color:#fff}
.cat-hero h1{font-size:clamp(25px,3.3vw,35px);font-weight:800;color:#fff;letter-spacing:.4px;margin:14px 0 12px;line-height:1.3}
.cat-hero-desc{font-size:16px;line-height:1.85;color:rgba(233,229,255,.72);max-width:600px}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;border:1px solid rgba(124,58,237,.5);
  background:rgba(124,58,237,.2);color:#E9E5FF;font-variant-numeric:tabular-nums;
}
.badge-amber{background:rgba(250,204,21,.14);border-color:rgba(250,204,21,.45);color:#FDE68A}
.cat-hero-visual{
  position:absolute;right:32px;top:50%;transform:translateY(-50%);
  width:340px;height:178px;border-radius:20px;overflow:hidden;
  border:1px solid rgba(34,211,238,.35);box-shadow:0 0 46px rgba(162,28,175,.4);
}
.cat-hero-visual img{width:100%;height:100%;object-fit:cover}
.cat-hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,10,31,.05),rgba(14,10,31,.5));
}
@media (max-width:1023px){.cat-hero-visual{display:none}.cat-hero-inner{max-width:100%}}

/* 板块 */
.section{padding:72px 0}
.section-alt{background:linear-gradient(180deg,#FFFFFF 0%,#F6F4FE 100%)}
@media (max-width:767px){.section{padding:48px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(23px,2.6vw,28px);font-weight:800;margin:10px 0 8px}
.section-head p{font-size:15px;color:var(--text-2);max-width:680px}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:2px;
  color:var(--primary-600);text-transform:uppercase;
}
.section-link{font-size:14px;font-weight:600;color:var(--primary-700);text-decoration:none;white-space:nowrap;transition:color .2s}
.section-link:hover{color:var(--magenta);text-decoration:underline}

/* 问题分组 */
.group-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:767px){.group-grid{grid-template-columns:1fr}}
.group-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-card);transition:transform .25s,box-shadow .25s,border-color .25s;
}
.group-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(124,58,237,.35)}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.group-icon{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;flex:none;
  background:var(--grad-brand);color:#fff;font-size:14px;font-weight:800;
  font-variant-numeric:tabular-nums;box-shadow:0 6px 16px rgba(109,40,217,.28);
}
.group-head h3{font-size:18px;font-weight:800;flex:1}
.group-count{
  font-size:12px;color:var(--text-3);border:1px solid var(--line);
  border-radius:999px;padding:3px 10px;white-space:nowrap;background:#FAF9FF;
}
.group-list{list-style:none;display:grid;gap:10px}
.group-list li{position:relative;padding-left:18px;font-size:15px;line-height:1.7;color:var(--text-2)}
.group-list li::before{
  content:"";position:absolute;left:2px;top:10px;width:6px;height:6px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 8px rgba(34,211,238,.75);
}

/* 对照表 */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:#fff;box-shadow:var(--shadow-card);-webkit-overflow-scrolling:touch;
}
.spec-table{width:100%;border-collapse:collapse;min-width:720px}
.spec-table thead th{
  background:var(--dark-2);color:#fff;font-size:14px;font-weight:700;text-align:left;
  padding:16px 20px;white-space:nowrap;letter-spacing:.4px;
}
.spec-table thead th:first-child{border-top-left-radius:var(--radius-lg)}
.spec-table tbody td{
  padding:15px 20px;font-size:15px;color:var(--text-2);
  border-top:1px solid var(--line);vertical-align:middle;
}
.spec-table tbody td:first-child{color:var(--text);font-weight:600}
.spec-table tbody tr:nth-child(even){background:#FAF8FF}
.spec-table tbody tr:hover{background:#F2EDFF}
.status{display:inline-block;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;white-space:nowrap}
.status-ok{background:rgba(34,211,238,.16);color:#0E7490}
.status-tip{background:rgba(109,40,217,.12);color:var(--primary-700)}
.status-warn{background:rgba(250,204,21,.2);color:#9A6B02}
.table-note{margin-top:14px;font-size:13px;color:var(--text-3)}

/* 更新摘要 */
.update-list{
  list-style:none;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);
}
.update-list li{
  display:flex;align-items:center;gap:16px;padding:16px 22px;
  border-top:1px solid var(--line);transition:background .2s;
}
.update-list li:first-child{border-top:0}
.update-list li:hover{background:#FAF8FF}
.update-tag{
  flex:none;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;
  background:rgba(109,40,217,.1);color:var(--primary-700);white-space:nowrap;
}
.update-title{flex:1;font-size:15px;color:var(--text);min-width:0}
.update-date{flex:none;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
@media (max-width:520px){
  .update-list li{flex-wrap:wrap;gap:8px 12px;padding:14px 18px}
  .update-title{flex:1 0 100%;order:3}
}

/* 处理顺序卡片 */
.tip-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:900px){.tip-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.tip-grid{grid-template-columns:1fr}}
.tip-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow-card);transition:transform .25s,box-shadow .25s;
}
.tip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.tip-num{
  display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:#F1EBFF;color:var(--primary-700);font-weight:800;font-size:14px;
  font-variant-numeric:tabular-nums;
}
.tip-card h3{font-size:17px;font-weight:800;margin:14px 0 8px}
.tip-card p{font-size:15px;color:var(--text-2);line-height:1.8}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:880px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  min-height:56px;padding:12px 20px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#FAF8FF}
.faq-plus{
  margin-left:auto;flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);position:relative;transition:border-color .2s,background .2s;
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary-600);
  border-radius:2px;transform:translate(-50%,-50%);transition:opacity .2s;
}
.faq-plus::before{width:12px;height:2px}
.faq-plus::after{width:2px;height:12px}
.faq-item[open]{border-color:rgba(109,40,217,.4);box-shadow:var(--shadow-card)}
.faq-item[open] summary{background:#F6F2FF;border-left:4px solid var(--primary-600)}
.faq-item[open] .faq-plus::after{opacity:0}
.faq-item[open] .faq-plus{border-color:rgba(109,40,217,.45);background:#fff}
.faq-body{padding:6px 20px 20px 20px;background:#F6F2FF;font-size:15px;line-height:1.9;color:var(--text-2)}

/* 相关链接 + CTA */
.related-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding:18px 22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-md);margin-bottom:28px;box-shadow:var(--shadow-card);
}
.related-bar > span{font-size:14px;font-weight:700;color:var(--text)}
.related-bar a{
  font-size:14px;color:var(--primary-700);text-decoration:none;
  padding:6px 14px;border-radius:999px;background:#F3EEFF;transition:background .2s,color .2s,transform .2s;
}
.related-bar a:hover{background:var(--primary-600);color:#fff;transform:translateY(-2px)}
.cta-banner{
  position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;
  gap:32px;padding:40px;border-radius:28px;
  background:
    radial-gradient(120% 170% at 10% 18%,rgba(162,28,175,.55) 0%,transparent 60%),
    linear-gradient(135deg,#150F2E 0%,#2A1160 100%);
  border:1px solid rgba(34,211,238,.22);box-shadow:0 20px 50px rgba(109,40,217,.25);
}
.cta-banner h2{color:#fff;font-size:clamp(21px,2.4vw,26px);font-weight:800;margin-bottom:10px}
.cta-banner p{color:rgba(233,229,255,.74);font-size:15px;line-height:1.8;max-width:560px}
.cta-actions{display:flex;gap:12px;flex:none;flex-wrap:wrap}
@media (max-width:767px){
  .cta-banner{flex-direction:column;align-items:flex-start;padding:28px 22px;gap:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
}

/* 页脚 */
.site-footer{
  background:var(--dark);color:rgba(233,229,255,.7);
  border-top:1px solid rgba(34,211,238,.18);padding:56px 0 0;margin-top:8px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;gap:26px}}
.footer-brand h3{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;margin-bottom:12px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(233,229,255,.6);max-width:360px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col a{
  display:block;font-size:14px;color:rgba(233,229,255,.62);
  text-decoration:none;padding:5px 0;transition:color .2s,transform .2s;
}
.footer-col a:hover{color:var(--accent);transform:translateX(3px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding:18px 0 26px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:rgba(233,229,255,.45);
}

/* 移动端导航抽屉 */
@media (max-width:1023px){
  .header-cta{display:none}
  .nav-toggle{display:flex}
  .nav-menu{
    display:none;position:absolute;top:100%;left:-20px;right:-20px;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:12px 20px 20px;background:#150F2E;
    border-bottom:1px solid rgba(34,211,238,.22);
    box-shadow:0 24px 44px rgba(14,10,31,.5);
  }
  .nav-menu.open{display:flex}
  .nav-link{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:12px;font-size:15px}
  .nav-link.active{background:rgba(124,58,237,.22)}
  .nav-link.active::after{display:none}
}