/* roulang page: index */
:root{
  --c-primary:#1462D6;
  --c-primary-hover:#0F4FAE;
  --c-primary-light:#EAF2FE;
  --c-accent:#FF6A2B;
  --c-mint:#12B39B;
  --c-bg:#F4F7FB;
  --c-surface:#FFFFFF;
  --c-dark:#0F1B2E;
  --c-title:#101C2E;
  --c-text:#45536A;
  --c-muted:#8593A8;
  --c-line:#E3E9F2;
  --shadow-base:0 1px 2px rgba(16,28,46,.04),0 4px 12px rgba(16,28,46,.06);
  --shadow-hover:0 12px 28px rgba(20,98,214,.14);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--c-title);font-weight:700;line-height:1.32;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;border:none;background:none;cursor:pointer;color:inherit;}
input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(20,98,214,.30);border-radius:var(--r-sm);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.site-header.is-scrolled{
  box-shadow:0 1px 2px rgba(16,28,46,.04),0 4px 12px rgba(16,28,46,.06);
  border-bottom-color:var(--c-line);
}
.header-inner{
  max-width:1200px;margin:0 auto;padding:0 32px;
  height:72px;display:flex;align-items:center;gap:24px;
}
.nav-group{display:flex;align-items:center;gap:28px;flex:1 1 0;min-width:0;}
.nav-left{justify-content:flex-end;}
.nav-right{justify-content:flex-start;}
.brand{
  flex:0 0 auto;display:block;min-width:200px;max-width:240px;text-align:center;
  font-size:18px;font-weight:700;color:var(--c-title);letter-spacing:.5px;white-space:nowrap;
}
.brand:hover{color:var(--c-primary);}
.nav-link{
  position:relative;font-size:15px;color:var(--c-text);padding:6px 0;white-space:nowrap;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-accent);
  border-radius:2px;transform:scaleX(0);transition:transform var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.active{color:var(--c-title);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;
  border:1px solid transparent;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-2px);box-shadow:0 12px 28px rgba(20,98,214,.24);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;border-color:rgba(20,98,214,.4);color:var(--c-primary);}
.btn-ghost:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:0 12px 28px rgba(20,98,214,.12);}
.btn-quiet{background:rgba(255,255,255,.92);color:var(--c-primary);border-color:rgba(255,255,255,.7);}
.btn-quiet:hover{background:#fff;transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-nav{height:42px;padding:0 20px;font-size:14px;}
.menu-toggle{display:none;width:44px;height:44px;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:5px;}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-title);transition:transform var(--ease),opacity var(--ease);}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.is-open span:nth-child(2){opacity:0;}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.icon-btn{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;color:var(--c-primary);background:#fff;
}
.mobile-panel{
  display:none;position:fixed;inset:60px 0 0 0;background:#fff;z-index:79;
  padding:16px 20px 32px;overflow-y:auto;
  opacity:0;transform:translateY(-8px);pointer-events:none;transition:opacity var(--ease),transform var(--ease);
}
.mobile-panel.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-group{padding:8px 0 16px;border-bottom:1px solid var(--c-line);}
.mobile-group:last-of-type{border-bottom:none;}
.mobile-label{font-size:13px;color:var(--c-muted);padding:8px 4px;}
.mobile-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;font-size:16px;color:var(--c-title);border-radius:10px;
}
.mobile-link:hover{color:var(--c-primary);background:var(--c-primary-light);}
.mobile-link.active{color:var(--c-primary);font-weight:600;}
.mobile-cta{margin-top:20px;}
.mobile-cta .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:#0B1B33;min-height:460px;display:flex;align-items:center;}
.hero-bg{position:absolute;inset:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,27,51,.93) 0%,rgba(11,27,51,.78) 42%,rgba(20,98,214,.32) 100%);
}
.hero-inner{position:relative;z-index:2;padding:72px 32px;width:100%;}
.hero-copy{max-width:620px;color:#fff;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(18,179,155,.18);color:#8FE3D6;font-size:13px;letter-spacing:.4px;margin-bottom:20px;
}
.hero h1{color:#fff;font-size:40px;line-height:1.22;font-weight:700;letter-spacing:.3px;}
.hero-sub{color:rgba(255,255,255,.82);font-size:17px;line-height:1.75;margin-top:20px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;list-style:none;}
.hero-tags li{
  height:26px;display:inline-flex;align-items:center;padding:0 14px;border-radius:999px;
  font-size:13px;color:rgba(255,255,255,.9);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
}
.hero-rule{position:absolute;left:-24px;right:-24px;bottom:0;height:1px;background:rgba(255,255,255,.28);z-index:3;}

/* ---------- Section head ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-title{position:relative;padding-left:16px;font-size:28px;line-height:1.3;}
.section-title::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--c-primary);
}
.section-sub{margin-top:10px;font-size:15px;color:var(--c-muted);max-width:720px;}
.link-more{font-size:15px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.link-more:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;color:var(--c-primary-hover);}
.grid-texture{
  background-image:linear-gradient(rgba(20,98,214,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(20,98,214,.04) 1px,transparent 1px);
  background-size:24px 24px;
}

/* ---------- Catalog ---------- */
.catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.catalog-card{
  position:relative;display:flex;gap:16px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-base);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.catalog-card:hover{transform:translateY(-4px);border-color:rgba(20,98,214,.16);box-shadow:var(--shadow-hover);}
.catalog-grid > *:nth-child(2),
.catalog-grid > *:nth-child(5){margin-top:16px;}
.catalog-thumb{width:56px;height:56px;border-radius:12px;overflow:hidden;flex:0 0 56px;background:var(--c-primary-light);}
.catalog-thumb img{width:100%;height:100%;object-fit:cover;}
.catalog-body{min-width:0;flex:1 1 auto;}
.catalog-name{font-size:17px;font-weight:600;color:var(--c-title);line-height:1.5;}
.catalog-desc{margin-top:6px;font-size:14px;color:var(--c-muted);line-height:1.6;}
.catalog-count{margin-top:10px;font-size:13px;color:var(--c-mint);font-weight:600;}
.catalog-arrow{
  position:absolute;right:20px;bottom:20px;width:24px;height:24px;color:var(--c-primary);
  transition:transform var(--ease);
}
.catalog-card:hover .catalog-arrow{transform:translateX(4px);}

/* ---------- Cards ---------- */
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-base);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(20,98,214,.16);box-shadow:var(--shadow-hover);}
.card-media{display:block;background:var(--c-primary-light);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out;}
.card:hover .card-media img{transform:scale(1.03);}
.ratio-16-9{aspect-ratio:16/9;}
.ratio-4-3{aspect-ratio:4/3;}
.card-body{padding:20px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.card-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--c-muted);}
.pill{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-light);color:var(--c-primary);font-size:12px;font-weight:600;
}
.pill-mint{background:rgba(18,179,155,.12);color:#0E8E7C;}
.card-title{font-size:18px;line-height:1.55;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-title a:hover{color:var(--c-primary);}
.card-summary{font-size:14px;line-height:1.75;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-summary-1{-webkit-line-clamp:1;}
.card-foot{margin-top:auto;padding-top:4px;display:flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.card-foot:hover{text-decoration:underline;text-underline-offset:4px;}
.featured-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.card-lead{grid-column:span 2;display:grid;grid-template-columns:1.15fr 1fr;align-items:stretch;}
.card-lead .card-media{height:100%;border-radius:var(--r-md) 0 0 var(--r-md);}
.card-lead .card-body{padding:28px 32px;}
.card-lead .card-title{font-size:24px;line-height:1.45;-webkit-line-clamp:2;}
.card-lead .card-summary{font-size:15px;-webkit-line-clamp:2;}
.card-compact .card-body{padding:20px;gap:10px;}

/* ---------- Timeline ---------- */
.timeline{list-style:none;position:relative;padding-left:32px;}
.timeline::before{content:"";position:absolute;left:5px;top:16px;bottom:16px;width:1px;background:var(--c-line);}
.timeline-item{position:relative;padding:20px 0;min-height:88px;border-bottom:1px solid var(--c-line);display:flex;gap:24px;align-items:flex-start;}
.timeline-item:last-child{border-bottom:none;}
.timeline-item::before{
  content:"";position:absolute;left:-32px;top:28px;width:12px;height:12px;border-radius:50%;
  background:var(--c-primary);box-shadow:0 0 0 4px var(--c-primary-light);
}
.timeline-main{flex:1 1 auto;min-width:0;}
.timeline-title{font-size:18px;font-weight:600;line-height:1.55;color:var(--c-title);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.timeline-title a:hover{color:var(--c-primary);}
.timeline-summary{margin-top:8px;font-size:14px;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.timeline-meta{margin-top:10px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--c-muted);}
.timeline-thumb{flex:0 0 120px;width:120px;aspect-ratio:4/3;border-radius:10px;overflow:hidden;background:var(--c-primary-light);}
.timeline-thumb img{width:100%;height:100%;object-fit:cover;}

/* ---------- Related rail ---------- */
.rail{display:flex;gap:24px;overflow-x:auto;padding:4px 4px 16px;scroll-snap-type:x mandatory;}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:var(--c-line);border-radius:999px;}
.rail-card{flex:0 0 280px;scroll-snap-align:start;}

/* ---------- CTA bar ---------- */
.cta-bar{
  background:var(--c-primary-light);border-radius:var(--r-lg);padding:36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  border:1px solid rgba(20,98,214,.12);
}
.cta-title{font-size:22px;font-weight:700;line-height:1.5;}
.cta-desc{margin-top:8px;font-size:15px;color:var(--c-text);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-actions .btn{height:46px;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.faq-item{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:0 22px;
}
.faq-item::before{
  content:"";position:absolute;left:-1px;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:var(--c-primary);opacity:0;transition:opacity var(--ease);
}
.faq-item[open]::before{opacity:1;}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:16px;font-weight:600;color:var(--c-title);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{flex:0 0 20px;width:20px;height:20px;color:var(--c-primary);transition:transform var(--ease);}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-answer{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--c-text);}

/* ---------- Subscribe ---------- */
.subscribe{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:36px;display:grid;grid-template-columns:1fr minmax(280px,520px);gap:40px;align-items:center;
  box-shadow:var(--shadow-base);
}
.subscribe h2{font-size:22px;}
.subscribe p{margin-top:10px;font-size:15px;color:var(--c-text);}
.form-row{display:flex;gap:12px;}
.form-input{
  height:48px;flex:1 1 auto;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  padding:0 16px;color:var(--c-title);transition:border-color var(--ease),box-shadow var(--ease);
}
.form-input::placeholder{color:var(--c-muted);}
.form-input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(20,98,214,.18);outline:none;}
.form-note{margin-top:10px;font-size:13px;color:var(--c-muted);}

/* ---------- Empty state ---------- */
.empty-state{
  background:var(--c-bg);border:1px dashed var(--c-line);border-radius:var(--r-md);
  padding:48px 24px;text-align:center;color:var(--c-muted);font-size:15px;
  display:flex;flex-direction:column;align-items:center;gap:16px;
}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);margin-top:24px;}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:72px 0 40px;
}
.footer-logo{display:inline-block;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.8;max-width:320px;color:rgba(255,255,255,.66);}
.footer-social{display:flex;gap:12px;margin-top:20px;}
.footer-social span{
  width:36px;height:36px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.72);
  transition:background var(--ease),color var(--ease);
}
.footer-social span:hover{background:rgba(255,255,255,.08);color:#fff;}
.footer-col h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:18px;}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:0;}
.footer-links a{display:inline-flex;align-items:center;min-height:40px;font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-decoration-thickness:1px;text-underline-offset:4px;}
.footer-contact p{font-size:14px;line-height:2;color:rgba(255,255,255,.72);}
.footer-sites{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0;font-size:13px;
  display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;color:rgba(255,255,255,.55);
}
.footer-sites a{color:rgba(255,255,255,.72);}
.footer-sites a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0 32px;font-size:13px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;color:rgba(255,255,255,.55);
}

/* ---------- Floating share ---------- */
.float-group{
  position:fixed;right:20px;bottom:24px;z-index:70;display:none;flex-direction:column;gap:12px;
  opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity var(--ease),transform var(--ease);
}
.float-group.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-btn{
  width:48px;height:48px;border-radius:50%;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(20,98,214,.28);transition:transform var(--ease),background var(--ease);
}
.float-btn:hover{transform:translateY(-2px);background:var(--c-primary-hover);}
.float-btn.alt{background:#fff;color:var(--c-primary);border:1px solid rgba(20,98,214,.4);}

@media (max-width:1279px){
  .container{padding:0 24px;}
  .header-inner{padding:0 24px;}
  .hero-inner{padding:64px 24px;}
}
@media (max-width:1023px){
  .nav-group{display:none;}
  .brand{min-width:0;max-width:none;font-size:16px;}
  .header-inner{justify-content:space-between;height:60px;padding:0 16px;gap:12px;}
  .menu-toggle{display:flex;}
  .icon-btn{display:inline-flex;}
  .mobile-panel{display:block;}
  .section{padding:64px 0;}
  .catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .catalog-grid > *:nth-child(2),.catalog-grid > *:nth-child(5){margin-top:0;}
  .featured-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .card-lead{grid-column:span 2;grid-template-columns:1fr;}
  .card-lead .card-media{border-radius:var(--r-md) var(--r-md) 0 0;aspect-ratio:16/9;}
  .faq-grid{grid-template-columns:1fr;}
  .subscribe{grid-template-columns:1fr;gap:24px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 32px;}
  .hero h1{font-size:34px;}
  .hero{min-height:420px;}
}
@media (max-width:767px){
  .hero{min-height:340px;}
  .hero-inner{padding:48px 20px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:15px;margin-top:16px;}
  .hero-actions{margin-top:22px;gap:12px;}
  .hero-tags{margin-top:22px;}
  .hero-actions .btn{width:100%;}
  .section{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .section-title{font-size:22px;}
  .section-title::before{top:5px;bottom:5px;}
  .catalog-grid{grid-template-columns:1fr;}
  .featured-grid{grid-template-columns:1fr;}
  .card-lead{grid-column:span 1;}
  .timeline{padding-left:24px;}
  .timeline::before{display:none;}
  .timeline-item::before{left:-24px;top:26px;}
  .timeline-item{flex-direction:column;gap:14px;}
  .timeline-thumb{width:100%;flex:0 0 auto;aspect-ratio:16/9;}
  .card-lead .card-body{padding:20px;}
  .card-lead .card-title{font-size:20px;}
  .cta-bar{padding:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .subscribe{padding:24px;}
  .form-row{flex-direction:column;}
  .form-row .btn{width:100%;}
  .footer-top{grid-template-columns:1fr;gap:32px;}
  .float-group{display:flex;}
  .card-meta{font-size:12px;}
}
@media (max-width:520px){
  .hero h1{font-size:25px;line-height:1.3;}
  .container{padding:0 16px;}
  .section-head{margin-bottom:20px;}
  .rail-card{flex:0 0 240px;}
}
@media print{
  .site-header,.float-group,.cta-bar{display:none;}
  body{background:#fff;}
}

/* roulang page: category1 */
:root{
    --c-primary:#1462D6;
    --c-primary-hover:#0F4FAE;
    --c-primary-soft:#EAF2FE;
    --c-primary-line:rgba(20,98,214,.16);
    --c-accent:#FF6A2B;
    --c-mint:#12B39B;
    --c-bg:#F4F7FB;
    --c-surface:#FFFFFF;
    --c-ink:#0F1B2E;
    --c-title:#101C2E;
    --c-text:#45536A;
    --c-muted:#8593A8;
    --c-line:#E3E9F2;
    --r-sm:8px; --r-md:14px; --r-lg:20px; --r-pill:999px;
    --sh-1:0 1px 2px rgba(16,28,46,.04), 0 4px 12px rgba(16,28,46,.06);
    --sh-2:0 12px 28px rgba(20,98,214,.14);
    --ease:cubic-bezier(.4,0,.2,1);
    --sp-section:88px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;line-height:1.75;color:var(--c-text);background:var(--c-bg);
    font-feature-settings:"tnum";
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  ul,ol{list-style:none;margin:0;padding:0}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:3px solid rgba(20,98,214,.30);outline-offset:2px;border-radius:4px}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
  .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}

  /* ============ 顶栏 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(244,247,251,.88);
    backdrop-filter:saturate(140%) blur(10px);
    border-bottom:1px solid transparent;
    transition:background-color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .site-header.is-scrolled{background:#fff;box-shadow:var(--sh-1);border-bottom-color:var(--c-line)}
  .header-inner{display:flex;align-items:center;gap:28px;height:72px}
  .brand{
    flex:0 0 auto;width:224px;text-align:center;
    font-size:17px;font-weight:700;color:var(--c-title);letter-spacing:.4px;line-height:1.3;
  }
  .brand:hover{color:var(--c-primary)}
  .nav-group{display:flex;align-items:center;gap:28px;flex:1 1 0;min-width:0}
  .nav-left{justify-content:flex-end}
  .nav-right{justify-content:flex-start}
  .nav-link{position:relative;font-size:15px;color:var(--c-text);white-space:nowrap;padding:4px 0}
  .nav-link:hover{color:var(--c-primary)}
  .nav-link.active{color:var(--c-title);font-weight:600}
  .nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
    background:var(--c-accent);border-radius:2px;
  }
  .menu-toggle,.icon-btn{
    display:none;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:10px;color:var(--c-title);
    border:1px solid var(--c-line);background:#fff;
  }
  .menu-toggle:hover,.icon-btn:hover{border-color:var(--c-primary-line);color:var(--c-primary)}
  .mobile-panel{
    display:none;border-top:1px solid var(--c-line);background:#fff;
    padding:16px 20px 24px;box-shadow:var(--sh-1);
  }
  .mobile-panel.is-open{display:block}
  .mobile-group+.mobile-group{margin-top:8px}
  .mobile-group-title{font-size:12px;letter-spacing:.6px;color:var(--c-muted);padding:12px 4px 4px}
  .mobile-link{
    display:flex;align-items:center;min-height:48px;padding:0 4px;
    font-size:15px;color:var(--c-text);border-bottom:1px solid var(--c-line);
  }
  .mobile-link.is-active{color:var(--c-primary);font-weight:600}
  .mobile-cta{margin-top:20px}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;white-space:nowrap;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  }
  .btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
  .btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-2px);box-shadow:var(--sh-2)}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
  .btn-outline{background:#fff;border-color:rgba(20,98,214,.4);color:var(--c-primary)}
  .btn-outline:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-1)}
  .btn-outline:active{transform:translateY(0)}
  .btn-soft{background:rgba(255,255,255,.92);border-color:var(--c-primary-line);color:var(--c-primary)}
  .btn-soft:hover{transform:translateY(-2px);background:#fff;box-shadow:var(--sh-1)}
  .btn-sm{height:38px;padding:0 18px;font-size:14px}
  .btn-block{width:100%}
  .text-link{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
  }
  .text-link:hover{color:var(--c-primary-hover);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--c-accent)}

  /* ============ 分类窄 Hero ============ */
  .cat-hero{position:relative;overflow:hidden;background:var(--c-ink);min-height:240px;display:flex;align-items:flex-end}
  .cat-hero__bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center 34%;
  }
  .cat-hero__veil{
    position:absolute;inset:0;
    background:linear-gradient(102deg,rgba(15,27,46,.90) 0%,rgba(20,98,214,.66) 58%,rgba(20,98,214,.36) 100%);
  }
  .cat-hero__grid{
    position:absolute;inset:0;opacity:.5;
    background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
    background-size:24px 24px;
  }
  .cat-hero__inner{position:relative;width:100%;padding:28px 0 32px}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:16px;flex-wrap:wrap}
  .breadcrumb a{color:rgba(255,255,255,.82)}
  .breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
  .breadcrumb .sep{opacity:.55}
  .breadcrumb .current{color:#fff}
  .cat-hero h1{
    font-size:36px;line-height:1.28;font-weight:700;color:#fff;letter-spacing:.2px;max-width:820px;
  }
  .cat-hero .hero-sub{margin-top:12px;font-size:15px;line-height:1.7;color:rgba(255,255,255,.78);max-width:660px}
  .hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
  .hero-tag{
    display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
    font-size:12.5px;color:#fff;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  }

  /* ============ 分类说明条 ============ */
  .cat-intro{
    border-top:1px solid var(--c-line);margin-top:32px;padding-top:20px;
    font-size:15px;line-height:1.8;color:var(--c-text);max-width:780px;
  }

  /* ============ 布局 ============ */
  .cat-layout{display:grid;gap:32px;margin-top:40px}
  .side-card{
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
    box-shadow:var(--sh-1);padding:20px;margin-bottom:20px;
  }
  .side-title{font-size:15px;font-weight:600;color:var(--c-title);margin-bottom:12px}
  .side-list li+li{margin-top:2px}
  .side-link{
    display:flex;align-items:center;justify-content:space-between;gap:8px;
    min-height:40px;padding:0 10px;border-radius:8px;font-size:14px;color:var(--c-text);
  }
  .side-link:hover{background:var(--c-primary-soft);color:var(--c-primary)}
  .side-link.is-current{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}
  .side-link .num{font-size:12px;color:var(--c-muted);font-variant-numeric:tabular-nums}
  .side-search{display:flex;gap:8px;margin-bottom:12px}
  .side-search input{
    width:100%;height:44px;padding:0 12px;border:1px solid var(--c-line);border-radius:10px;
    font-size:14px;color:var(--c-title);background:#fff;
  }
  .side-search input::placeholder{color:var(--c-muted)}
  .side-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(20,98,214,.16)}
  .side-note{font-size:13px;line-height:1.7;color:var(--c-muted)}
  .side-back{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
  }
  .side-back:hover{color:var(--c-primary-hover);text-decoration:underline;text-underline-offset:4px}

  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
  .section-title{position:relative;font-size:28px;line-height:1.35;font-weight:700;color:var(--c-title);padding-left:16px}
  .section-title::before{
    content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--c-primary);
  }
  .section-desc{margin-top:10px;font-size:15px;color:var(--c-muted);max-width:720px}

  /* ============ 条目卡 ============ */
  .entry-grid{display:grid;grid-template-columns:1fr;gap:24px}
  .card{
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
    box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-line)}
  .card-cover{
    position:relative;display:block;background:var(--c-primary-soft);aspect-ratio:4/3;overflow:hidden;
  }
  .card-cover::before{
    content:"爱游戏手机软件官网";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
    font-size:13px;font-weight:600;color:rgba(20,98,214,.35);letter-spacing:1px;
  }
  .card-cover img{
    position:relative;width:100%;height:100%;object-fit:cover;
    transition:transform .35s var(--ease);
  }
  .card:hover .card-cover img{transform:scale(1.03)}
  .card-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;gap:10px}
  .card-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--c-muted)}
  .badge{
    display:inline-flex;align-items:center;height:25px;padding:0 11px;border-radius:var(--r-pill);
    font-size:12.5px;font-weight:600;background:var(--c-primary-soft);color:var(--c-primary);
  }
  .badge-mint{background:rgba(18,179,155,.12);color:#0E8F7C}
  .dot{width:3px;height:3px;border-radius:50%;background:var(--c-line);display:inline-block}
  .card-title{font-size:18px;line-height:1.5;font-weight:600;color:var(--c-title)}
  .card-title a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--c-accent)}
  .card-desc{
    font-size:14.5px;line-height:1.75;color:var(--c-text);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px}
  .card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
  .card-link svg{transition:transform .2s var(--ease)}
  .card-link:hover svg{transform:translateX(3px)}
  .card-link:hover{color:var(--c-primary-hover);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--c-accent)}

  /* ============ 相关分类 ============ */
  .rel-grid{display:grid;grid-template-columns:1fr;gap:20px}
  .rel-card{
    display:flex;flex-direction:column;gap:10px;padding:22px;
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-line)}
  .rel-card h3{font-size:17px;font-weight:600;color:var(--c-title)}
  .rel-card p{font-size:14px;line-height:1.7;color:var(--c-muted)}
  .rel-card .card-link{margin-top:auto}
  .rel-card.is-current{border-color:var(--c-mint);background:linear-gradient(180deg,rgba(18,179,155,.06),transparent 55%),#fff}

  /* ============ FAQ ============ */
  .faq-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:8px;box-shadow:var(--sh-1)}
  .faq-item{border-bottom:1px solid var(--c-line);border-radius:10px}
  .faq-item:last-child{border-bottom:0}
  .faq-item[open]{background:var(--c-bg);box-shadow:inset 3px 0 0 var(--c-primary)}
  .faq-q{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:56px;padding:14px 20px;font-size:15px;font-weight:600;color:var(--c-title);cursor:pointer;list-style:none;
  }
  .faq-q::-webkit-details-marker{display:none}
  .faq-icon{
    flex:0 0 auto;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;
    color:var(--c-primary);transition:transform .22s var(--ease);
  }
  .faq-item[open] .faq-icon{transform:rotate(180deg)}
  .faq-a{padding:0 20px 20px;font-size:15px;line-height:1.75;color:var(--c-text)}
  .faq-a p{padding-top:12px}

  /* ============ CTA 通栏 ============ */
  .cta-band{
    background:var(--c-primary-soft);border:1px solid var(--c-primary-line);border-radius:var(--r-lg);
    padding:32px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  }
  .cta-band h2{font-size:22px;line-height:1.5;font-weight:700;color:var(--c-title);max-width:520px}
  .cta-band p{margin-top:8px;font-size:14px;color:var(--c-text)}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

  /* ============ 订阅表单带 ============ */
  .form-band{
    margin:var(--sp-section) 0;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
    padding:32px;display:grid;gap:24px;box-shadow:var(--sh-1);
  }
  .form-band h2{font-size:22px;font-weight:700;color:var(--c-title)}
  .form-band .form-note{margin-top:8px;font-size:14px;color:var(--c-muted);max-width:520px}
  .sub-form{display:flex;gap:12px;flex-wrap:wrap;width:100%;max-width:520px}
  .sub-form input{
    flex:1 1 260px;height:48px;padding:0 14px;border:1px solid var(--c-line);border-radius:10px;
    font-size:15px;color:var(--c-title);background:#fff;
  }
  .sub-form input::placeholder{color:var(--c-muted)}
  .sub-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(20,98,214,.16)}
  .privacy{font-size:12.5px;color:var(--c-muted);margin-top:10px}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:var(--sp-section);padding:64px 0 28px}
  .footer-top{display:grid;grid-template-columns:1fr;gap:32px}
  .footer-logo{display:inline-block;font-size:18px;font-weight:700;color:#fff;margin-bottom:12px}
  .footer-logo:hover{color:#fff}
  .footer-desc{font-size:14px;line-height:1.8;max-width:340px}
  .footer-social{display:flex;gap:10px;margin-top:18px}
  .footer-social span{
    display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;
    border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.78);
  }
  .footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
  .footer-links li{line-height:1}
  .footer-links a{display:inline-block;padding:7px 0;font-size:14px;line-height:26px;color:rgba(255,255,255,.72)}
  .footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--c-accent)}
  .footer-contact p{font-size:14px;line-height:2}
  .footer-sites{
    margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13.5px;
  }
  .footer-sites a{color:rgba(255,255,255,.68)}
  .footer-sites a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
  .footer-bottom{
    margin-top:20px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.58);
  }

  /* ============ 浮动按钮 ============ */
  .float-actions{
    position:fixed;right:16px;bottom:20px;z-index:50;display:none;flex-direction:column;gap:12px;
    opacity:0;transform:translateY(8px);pointer-events:none;
    transition:opacity .25s var(--ease),transform .25s var(--ease);
  }
  .float-actions.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
  .float-btn{
    width:48px;height:48px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
    background:var(--c-primary);color:#fff;box-shadow:var(--sh-2);border:1px solid rgba(255,255,255,.28);
  }
  .float-btn.alt{background:#fff;color:var(--c-primary);border-color:var(--c-primary-line)}

  /* ============ 响应式 ============ */
  @media (min-width:640px){
    .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:1023px){
    .container{padding:0 24px}
    .header-inner{height:60px;gap:12px;justify-content:space-between}
    .nav-group,.header-cta{display:none}
    .menu-toggle,.icon-btn{display:inline-flex}
    .brand{width:auto;flex:1 1 auto;font-size:15px}
    .cat-hero{min-height:160px}
    .cat-hero h1{font-size:28px}
    :root{--sp-section:64px}
  }
  @media (min-width:768px){
    .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-top{grid-template-columns:1.4fr 1fr 1fr 1.2fr}
  }
  @media (min-width:1024px){
    .cat-layout{grid-template-columns:240px minmax(0,1fr);gap:36px}
    .cat-side{position:sticky;top:96px;align-self:start}
    .rel-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
    .form-band{grid-template-columns:1.1fr 1fr;align-items:center}
  }
  @media (max-width:767px){
    .container{padding:0 20px}
    .cat-hero h1{font-size:26px}
    .section-title{font-size:22px}
    .btn{width:100%}
    .btn.btn-inline{width:auto}
    .cta-actions{width:100%}
    .float-actions{display:flex}
    .card-meta{font-size:13px}
    :root{--sp-section:52px}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  }

/* roulang page: article */
:root{
  --c-primary:#1462D6;
  --c-primary-hover:#0F4FAE;
  --c-primary-soft:#EAF2FE;
  --c-primary-line:rgba(20,98,214,.16);
  --c-primary-ring:rgba(20,98,214,.30);
  --c-accent:#FF6A2B;
  --c-mint:#12B39B;
  --c-bg:#F4F7FB;
  --c-surface:#FFFFFF;
  --c-dark:#0F1B2E;
  --c-title:#101C2E;
  --c-text:#45536A;
  --c-muted:#8593A8;
  --c-line:#E3E9F2;
  --c-line-soft:#EDF1F7;
  --c-danger:#D64545;
  --sh-1:0 1px 2px rgba(16,28,46,.04), 0 4px 12px rgba(16,28,46,.06);
  --sh-2:0 12px 28px rgba(20,98,214,.14);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}
.num{font-variant-numeric:tabular-nums;}
::selection{background:rgba(20,98,214,.16);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--c-line);
  box-shadow:0 6px 18px rgba(16,28,46,.08);
}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 32px;height:72px;
  display:flex;align-items:center;gap:18px;
}
.nav-group{display:flex;align-items:center;gap:28px;flex:1 1 0;min-width:0;}
.nav-left{justify-content:flex-end;}
.nav-right{justify-content:flex-start;}
.nav-link{
  position:relative;font-size:15px;color:var(--c-text);padding:6px 0;white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.active{color:var(--c-title);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  height:40px;padding:0 18px;border-radius:10px;
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-cta:hover{background:var(--c-primary-hover);transform:translateY(-2px);box-shadow:var(--sh-2);}
.brand-center{flex:0 0 232px;text-align:center;}
.brand-logo{
  display:inline-block;font-size:17px;font-weight:700;color:var(--c-title);
  letter-spacing:.4px;line-height:1.25;
}
.brand-logo span{display:block;font-size:11px;font-weight:500;color:var(--c-muted);letter-spacing:1.6px;}
.burger{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.burger:hover{border-color:var(--c-primary-line);background:var(--c-primary-soft);}
.burger span{display:block;width:18px;height:2px;background:var(--c-title);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-title);border-radius:2px;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.mobile-panel{
  position:fixed;left:0;right:0;top:60px;bottom:0;background:#fff;z-index:79;
  padding:12px 20px 40px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.mobile-panel.is-open{opacity:1;visibility:visible;transform:none;}
.mobile-panel .m-title{font-size:12px;color:var(--c-muted);letter-spacing:1.2px;margin:14px 0 6px;}
.mobile-panel .m-link{
  display:flex;align-items:center;min-height:48px;font-size:16px;color:var(--c-text);
  border-bottom:1px solid var(--c-line-soft);
}
.mobile-panel .m-link.active{color:var(--c-primary);font-weight:600;}
.mobile-panel .m-cta{
  display:flex;align-items:center;justify-content:center;height:48px;margin-top:22px;
  border-radius:10px;background:var(--c-primary);color:#fff;font-weight:600;
}

/* ---------- breadcrumb ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);margin:28px 0 16px;
}
.crumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:var(--c-line);}
.crumb .current{color:var(--c-title);}

/* ---------- article head ---------- */
.article-head{padding-bottom:8px;}
.cat-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;
}
.article-h1{
  font-size:40px;line-height:1.28;font-weight:700;color:var(--c-title);
  margin:16px 0 18px;letter-spacing:-.4px;max-width:900px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--c-muted);padding-bottom:22px;border-bottom:1px solid var(--c-line);
}
.meta-row .dot{color:var(--c-line);}
.meta-row time,.meta-row .meta-cat{color:var(--c-text);}
.meta-share{display:flex;align-items:center;gap:8px;margin-left:auto;}
.icon-btn{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-text);cursor:pointer;
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.icon-btn:hover{transform:translateY(-2px);border-color:var(--c-primary-line);color:var(--c-primary);box-shadow:var(--sh-1);}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start;
  padding:36px 0 0;
}
.article-main{min-width:0;display:block;}
.article-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:36px 40px 32px;box-shadow:var(--sh-1);
}

/* ---------- article typography ---------- */
.article-content{font-size:16.5px;line-height:1.85;color:var(--c-text);word-wrap:break-word;}
.article-content p{margin:0 0 1.2em;font-size:16.5px;line-height:1.85;}
.article-content > p:first-of-type{font-size:17px;color:var(--c-title);}
.article-content h2{
  position:relative;font-size:24px;line-height:1.5;font-weight:700;color:var(--c-title);
  margin:40px 0 16px;padding-left:14px;scroll-margin-top:100px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary);
}
.article-content h3{
  font-size:19px;line-height:1.6;font-weight:600;color:var(--c-title);
  margin:30px 0 12px;scroll-margin-top:100px;
}
.article-content h4{font-size:17px;font-weight:600;color:var(--c-title);margin:24px 0 10px;}
.article-content a{color:var(--c-primary);border-bottom:1px solid rgba(20,98,214,.35);}
.article-content a:hover{color:var(--c-primary-hover);border-bottom-color:var(--c-primary-hover);}
.article-content strong{color:var(--c-title);font-weight:600;}
.article-content blockquote{
  margin:24px 0;padding:16px 20px;background:#F4F7FB;border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-md) var(--r-md) 0;color:var(--c-title);font-size:16px;
}
.article-content ul{margin:0 0 1.2em;padding:0;}
.article-content ul li{position:relative;padding-left:20px;margin:0 0 .55em;line-height:1.8;}
.article-content ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--c-primary);
}
.article-content ol{margin:0 0 1.2em;counter-reset:avol;}
.article-content ol li{position:relative;padding-left:30px;margin:0 0 .6em;counter-increment:avol;line-height:1.8;}
.article-content ol li::before{
  content:counter(avol);position:absolute;left:0;top:.15em;width:20px;height:20px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-content img{
  width:100%;height:auto;border-radius:12px;margin:20px 0 8px;
  background:var(--c-primary-soft);
}
.article-content figure{margin:24px 0;}
.article-content figure img{margin:0 0 8px;}
.article-content figcaption{
  text-align:center;font-size:13px;color:var(--c-muted);line-height:1.7;
}
.article-content table{
  width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;
  border:1px solid var(--c-line);border-radius:var(--r-sm);overflow:hidden;
}
.article-content th,.article-content td{
  border:1px solid var(--c-line);padding:10px 14px;text-align:left;vertical-align:top;
}
.article-content th{background:#F4F7FB;color:var(--c-title);font-weight:600;}
.article-content tbody tr:nth-child(even){background:#FAFCFE;}
.article-content pre{
  background:#F4F7FB;border:1px solid var(--c-line);border-radius:10px;
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;margin:20px 0;
}
.article-content code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:14px;background:#F4F7FB;border-radius:6px;padding:2px 6px;color:#0F4FAE;
}
.article-content pre code{background:transparent;padding:0;color:var(--c-title);}
.article-content hr{border:0;border-top:1px solid var(--c-line);margin:32px 0;}

/* ---------- empty ---------- */
.empty-state{
  background:var(--c-bg);border:1px dashed var(--c-line);border-radius:var(--r-md);
  padding:48px 24px;text-align:center;
}
.empty-state .empty-title{font-size:18px;font-weight:600;color:var(--c-title);margin-bottom:8px;}
.empty-state .empty-desc{font-size:15px;color:var(--c-text);margin-bottom:20px;}

/* ---------- tag list ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0 0;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.tag:hover{background:var(--c-primary);color:#fff;}
.tag.mint{background:rgba(18,179,155,.12);color:#0E8E7C;}
.tag.mint:hover{background:var(--c-mint);color:#fff;}

/* ---------- CTA bar ---------- */
.cta-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  background:var(--c-primary-soft);border:1px solid var(--c-primary-line);
  border-radius:var(--r-lg);padding:22px 26px;margin:28px 0 0;
}
.cta-bar .cta-text{font-size:16px;font-weight:600;color:var(--c-title);margin-right:auto;}
.cta-actions{display:flex;flex-wrap:wrap;gap:10px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:10px;font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:none;}
.btn-outline{background:#fff;border-color:rgba(20,98,214,.40);color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-text);}
.btn-ghost:hover{border-color:var(--c-primary-line);color:var(--c-primary);transform:translateY(-2px);}
.btn-text{background:transparent;color:var(--c-primary);padding:0 4px;height:auto;}
.btn-text:hover{color:var(--c-primary-hover);text-decoration:underline;text-underline-offset:4px;}
.btn:focus-visible,.icon-btn:focus-visible,.nav-link:focus-visible,.tag:focus-visible{
  outline:3px solid var(--c-primary-ring);outline-offset:2px;
}

/* ---------- related ---------- */
.section{margin-top:56px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.section-title{
  position:relative;padding-left:14px;font-size:26px;line-height:1.4;font-weight:700;color:var(--c-title);
}
.section-title::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--c-primary);
}
.section-sub{font-size:14px;color:var(--c-muted);margin-top:6px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);height:100%;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-line);}
.card-media{position:relative;aspect-ratio:4/3;background:var(--c-primary-soft);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);}
.card-title{font-size:17px;line-height:1.55;font-weight:600;color:var(--c-title);}
.card-title a:hover{color:var(--c-primary);}
.card-desc{
  font-size:14px;line-height:1.75;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-link{
  margin-top:auto;font-size:14px;font-weight:600;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:6px;
}
.card-link:hover{text-decoration:underline;text-underline-offset:4px;}

/* ---------- prev next ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:36px;}
.pager-item{
  display:flex;flex-direction:column;gap:8px;padding:20px 22px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.pager-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-line);}
.pager-item .pager-label{font-size:12px;color:var(--c-muted);letter-spacing:1px;}
.pager-item .pager-title{font-size:16px;font-weight:600;color:var(--c-title);line-height:1.6;}
.pager-item.right{text-align:right;align-items:flex-end;}
.pager-item.left{text-align:right;align-items:flex-end;}

.back-row{display:flex;justify-content:center;margin-top:32px;}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:100px;}
.side-mod{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:18px 18px 20px;box-shadow:var(--sh-1);
}
.side-title{
  font-size:14px;font-weight:700;color:var(--c-title);letter-spacing:.5px;
  padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--c-line-soft);
  display:flex;align-items:center;gap:8px;
}
.side-title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto;}
.toc-link{
  display:block;font-size:14px;line-height:1.7;color:var(--c-text);padding:6px 10px;border-radius:8px;
  border-left:2px solid transparent;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.toc-link:hover{background:#F7FAFE;color:var(--c-primary);}
.toc-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;border-left-color:var(--c-primary);}
.toc-link.lv3{padding-left:22px;font-size:13px;color:var(--c-muted);}
.side-list{display:flex;flex-direction:column;}
.side-list li{border-bottom:1px dashed var(--c-line-soft);}
.side-list li:last-child{border-bottom:0;}
.side-list a{display:flex;gap:10px;padding:11px 0;font-size:14px;line-height:1.7;color:var(--c-text);}
.side-list a:hover{color:var(--c-primary);}
.side-list .idx{
  flex:0 0 20px;height:20px;margin-top:4px;border-radius:6px;background:var(--c-primary-soft);
  color:var(--c-primary);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.search-form{display:flex;flex-direction:column;gap:10px;}
.search-input{
  height:48px;width:100%;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  padding:0 14px;font-size:15px;color:var(--c-title);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-input::placeholder{color:var(--c-muted);}
.search-input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-ring);}
.search-tip{font-size:12px;color:var(--c-muted);line-height:1.7;}

/* ---------- floating ---------- */
.float-actions{
  position:fixed;right:16px;bottom:24px;z-index:70;display:none;flex-direction:column;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.float-actions.is-show{opacity:1;visibility:visible;transform:none;}
.float-btn{
  width:48px;height:48px;border-radius:50%;border:1px solid rgba(255,255,255,.6);
  background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);cursor:pointer;
}
.float-btn.alt{background:#fff;color:var(--c-primary);border-color:var(--c-primary-line);}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,12px);
  background:var(--c-dark);color:#fff;font-size:14px;padding:10px 20px;border-radius:var(--r-pill);
  opacity:0;visibility:hidden;z-index:120;transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.toast.is-show{opacity:1;visibility:visible;transform:translate(-50%,0);}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);margin-top:88px;padding:64px 0 28px;}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;}
.footer-logo{display:inline-block;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social span{
  width:34px;height:34px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.72);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.footer-social span:hover{border-color:rgba(255,255,255,.5);color:#fff;transform:translateY(-2px);}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-links li a{
  display:block;line-height:40px;font-size:14px;color:rgba(255,255,255,.72);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-links li a:hover{color:#fff;border-bottom-color:var(--c-accent);}
.footer-contact p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);margin-bottom:4px;}
.footer-sites{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-sites a{color:rgba(255,255,255,.72);}
.footer-sites a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container,.nav-inner{padding-left:28px;padding-right:28px;}
}
@media (max-width:1023px){
  .nav-group{display:none;}
  .burger{display:inline-flex;}
  .nav-inner{height:60px;justify-content:space-between;padding:0 20px;}
  .brand-center{flex:1 1 auto;width:auto;text-align:center;}
  .brand-logo{font-size:16px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .sidebar{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-h1{font-size:32px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .article-body{padding:24px 20px;border-radius:var(--r-md);}
  .article-h1{font-size:30px;line-height:1.32;}
  .article-content h2{font-size:21px;margin-top:32px;}
  .article-content h3{font-size:18px;}
  .article-content p{font-size:16px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .pager{grid-template-columns:minmax(0,1fr);}
  .pager-item.left,.pager-item.right{text-align:left;align-items:flex-start;}
  .cta-bar{padding:20px;}
  .cta-bar .cta-text{margin-right:0;width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .btn{width:100%;}
  .btn-text{width:auto;}
  .float-actions{display:flex;}
  .section{margin-top:44px;}
  .site-footer{padding:48px 0 24px;margin-top:56px;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .meta-share{margin-left:0;}
  .section-title{font-size:22px;}
}
@media (max-width:639px){
  .article-content table,.article-content pre{display:block;overflow-x:auto;white-space:nowrap;}
  .meta-row{gap:6px;}
  .meta-row .dot{display:none;}
}
@media print{
  .site-header,.mobile-panel,.float-actions,.cta-bar,.sidebar,.site-footer,.toast{display:none !important;}
  .article-body{border:0;box-shadow:none;padding:0;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1462D6;
  --c-primary-hover:#0F4FAE;
  --c-primary-soft:#EAF2FE;
  --c-accent:#FF6A2B;
  --c-accent-hover:#E85A1E;
  --c-mint:#12B39B;
  --c-bg:#F4F7FB;
  --c-surface:#FFFFFF;
  --c-dark:#0F1B2E;
  --c-title:#101C2E;
  --c-text:#45536A;
  --c-muted:#8593A8;
  --c-line:#E3E9F2;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,28,46,.04), 0 4px 12px rgba(16,28,46,.06);
  --sh-2:0 12px 28px rgba(20,98,214,.14);
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--t);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
table{border-collapse:collapse;}
:focus-visible{outline:3px solid rgba(20,98,214,.30);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section-surface{background:var(--c-surface);}
.section-head{margin-bottom:32px;}
.section-title{
  position:relative;
  font-size:28px;
  line-height:36px;
  font-weight:700;
  color:var(--c-title);
  padding-left:16px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:4px;height:26px;
  border-radius:2px;
  background:var(--c-primary);
}
.section-desc{margin-top:12px;padding-left:16px;font-size:15px;color:var(--c-muted);}
.grid-lines{
  background-image:linear-gradient(rgba(20,98,214,.04) 1px, transparent 1px),linear-gradient(90deg, rgba(20,98,214,.04) 1px, transparent 1px);
  background-size:24px 24px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t), border-color var(--t), background-color var(--t);
}
.site-header.scrolled{
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 2px 10px rgba(16,28,46,.06);
}
.header-inner{
  display:flex;align-items:center;
  height:72px;
}
.nav-group{display:flex;align-items:center;gap:28px;flex:1 1 0;}
.nav-left{justify-content:flex-end;padding-right:26px;}
.nav-right{justify-content:flex-start;padding-left:26px;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--c-text);
  white-space:nowrap;
  padding:4px 0;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.active{color:var(--c-title);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;background:var(--c-accent);
}
.brand{
  flex:0 0 auto;
  width:230px;
  text-align:center;
  font-size:18px;
  font-weight:700;
  letter-spacing:.5px;
  color:var(--c-title);
}
.brand:hover{color:var(--c-primary);}
.nav-cta{height:40px;padding:0 20px;font-size:14px;}
.menu-toggle,.icon-btn{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-title);
}
.menu-toggle:hover,.icon-btn:hover{border-color:rgba(20,98,214,.4);color:var(--c-primary);}
.mobile-panel{
  display:none;
  border-top:1px solid var(--c-line);
  background:#fff;
  padding:8px 20px 24px;
}
.mobile-panel.open{display:block;}
.mobile-panel .m-group{padding:8px 0;border-bottom:1px solid var(--c-line);}
.mobile-panel .m-link{
  display:block;
  min-height:48px;
  line-height:48px;
  font-size:16px;
  color:var(--c-text);
}
.mobile-panel .m-link.active{color:var(--c-primary);font-weight:600;}
.mobile-panel .m-cta{margin-top:20px;width:100%;}

/* ============ 面包屑 ============ */
.breadcrumb{
  font-size:13px;
  color:rgba(255,255,255,.78);
  margin-bottom:16px;
}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:3px;}
.breadcrumb .sep{margin:0 6px;color:rgba(255,255,255,.5);}
.breadcrumb .current{color:#fff;}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  display:flex;
  align-items:center;
  min-height:320px;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg, rgba(15,27,46,.86) 0%, rgba(15,27,46,.66) 46%, rgba(20,98,214,.52) 100%);
}
.cat-hero .container{position:relative;z-index:2;padding-top:44px;padding-bottom:52px;}
.cat-hero .hero-rule{
  position:absolute;left:-24px;right:-24px;bottom:0;height:1px;
  background:rgba(255,255,255,.3);
}
.hero-title{
  font-size:40px;
  line-height:48px;
  font-weight:700;
  color:#fff;
  letter-spacing:.5px;
}
.hero-sub{
  margin-top:16px;
  max-width:640px;
  font-size:16px;
  line-height:28px;
  color:rgba(255,255,255,.86);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:10px;
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  transition:transform var(--t), box-shadow var(--t), background-color var(--t), color var(--t), border-color var(--t);
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,106,43,.26);}
.btn-primary:hover{background:var(--c-accent-hover);transform:translateY(-2px);box-shadow:0 12px 24px rgba(255,106,43,.32);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;border-color:rgba(20,98,214,.4);color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.26);transform:translateY(-2px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;}
.btn-text:hover{color:var(--c-primary-hover);text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px;}

/* ============ 说明条 ============ */
.intro-band{background:var(--c-surface);padding:28px 0 8px;}
.cat-intro{
  border-top:1px solid var(--c-line);
  padding-top:20px;
  max-width:780px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text);
}
.cat-intro strong{color:var(--c-title);}

/* ============ 纵向条目行 ============ */
.entry-list{border-top:1px solid var(--c-line);}
.entry-row{
  display:grid;
  grid-template-columns:4fr 6fr;
  gap:28px;
  align-items:center;
  padding:28px 16px;
  border-bottom:1px solid var(--c-line);
  border-radius:var(--r-md);
  transition:background-color var(--t);
}
.entry-row:hover{background:#F7FAFE;}
.entry-fig{
  display:block;
  aspect-ratio:4 / 3;
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--c-primary-soft);
  border:1px solid var(--c-line);
}
.entry-fig img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease-out;}
.entry-row:hover .entry-fig img{transform:scale(1.03);}
.entry-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.pill{
  display:inline-flex;align-items:center;
  height:25px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:13px;
  font-weight:600;
}
.pill-mint{background:rgba(18,179,155,.12);color:#0E8E7C;}
.entry-meta .dot{color:var(--c-muted);}
.entry-meta time{font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums;}
.entry-title{
  margin-top:12px;
  font-size:18px;
  line-height:26px;
  font-weight:600;
  color:var(--c-title);
}
.entry-title a:hover{color:var(--c-primary);text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px;}
.entry-sum{
  margin-top:10px;
  font-size:15px;
  line-height:26px;
  color:var(--c-text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;
  font-size:14px;font-weight:600;
  color:var(--c-primary);
}
.link-arrow svg{transition:transform var(--t);}
.link-arrow:hover{color:var(--c-primary-hover);text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ============ 卖点卡 ============ */
.point-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.point-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform var(--t), box-shadow var(--t), border-color var(--t);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,98,214,.16);}
.point-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:var(--c-primary-soft);color:var(--c-primary);
  margin-bottom:16px;
}
.point-card h3{font-size:17px;line-height:26px;font-weight:600;color:var(--c-title);}
.point-card p{margin-top:8px;font-size:14px;line-height:24px;color:var(--c-text);}

/* ============ 场景行 ============ */
.scene-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 24px;}
.scene-item{
  display:flex;gap:16px;
  padding:20px 22px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  transition:border-color var(--t), box-shadow var(--t), transform var(--t);
}
.scene-item:hover{border-color:rgba(20,98,214,.16);box-shadow:var(--sh-1);transform:translateY(-2px);}
.scene-num{
  flex:0 0 34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(18,179,155,.12);
  color:#0E8E7C;font-size:14px;font-weight:700;
}
.scene-item h3{font-size:16px;font-weight:600;color:var(--c-title);}
.scene-item p{margin-top:6px;font-size:14px;line-height:24px;color:var(--c-text);}

/* ============ 步骤 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-item{
  position:relative;
  padding:24px 22px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.step-item::after{
  content:"";position:absolute;top:42px;right:-12px;width:24px;height:1px;background:var(--c-line);
}
.step-item:last-child::after{display:none;}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;
  background:var(--c-primary);color:#fff;
  font-size:14px;font-weight:700;
  margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:17px;font-weight:600;color:var(--c-title);}
.step-item p{margin-top:8px;font-size:14px;line-height:24px;color:var(--c-text);}

/* ============ FAQ ============ */
.faq-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 24px;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:0 22px;
  transition:border-color var(--t);
}
.faq-item[open]{border-left:3px solid var(--c-primary);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;
  padding:14px 0;
  font-size:16px;font-weight:600;color:var(--c-title);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 22px;color:var(--c-primary);
  transition:transform var(--t);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-body{padding:2px 0 20px;font-size:15px;line-height:26px;color:var(--c-text);}

/* ============ CTA 通栏 ============ */
.cta-band{
  background:var(--c-primary-soft);
  border:1px solid rgba(20,98,214,.16);
  border-radius:var(--r-lg);
  padding:36px 32px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-band h2{font-size:24px;line-height:34px;font-weight:700;color:var(--c-title);}
.cta-band p{margin-top:8px;font-size:15px;color:var(--c-text);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-actions .btn{height:44px;}

/* ============ 相关分类 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  display:block;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform var(--t), box-shadow var(--t), border-color var(--t);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,98,214,.16);}
.rel-card h3{font-size:17px;line-height:26px;font-weight:600;color:var(--c-title);}
.rel-card p{margin-top:10px;font-size:14px;line-height:24px;color:var(--c-text);}
.rel-card .link-arrow{margin-top:16px;}
.back-link{margin-top:28px;font-size:15px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-dark);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  margin-top:88px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-logo{
  display:inline-block;
  font-size:18px;font-weight:700;color:#fff;
  letter-spacing:.5px;
  margin-bottom:14px;
}
.footer-logo:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px;}
.footer-desc{font-size:14px;line-height:24px;color:rgba(255,255,255,.66);max-width:320px;}
.footer-social{display:flex;gap:12px;margin-top:18px;}
.footer-social span{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:rgba(255,255,255,.08);
  color:rgba(255,255,255,.78);
}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links li{line-height:40px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px;}
.footer-contact p{font-size:14px;line-height:26px;color:rgba(255,255,255,.72);}
.footer-sites{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;
  margin-top:44px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:14px;
}
.footer-sites span{color:rgba(255,255,255,.5);}
.footer-sites a{color:rgba(255,255,255,.72);}
.footer-sites a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;
  margin-top:20px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 浮动按钮 ============ */
.float-dock{
  position:fixed;right:16px;bottom:20px;z-index:70;
  display:none;flex-direction:column;gap:12px;
  opacity:0;pointer-events:none;
  transition:opacity var(--t);
}
.float-dock.show{opacity:1;pointer-events:auto;}
.float-btn{
  width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;
  border:1px solid rgba(255,255,255,.6);
  box-shadow:0 8px 20px rgba(20,98,214,.28);
}
.float-btn:hover{background:var(--c-primary-hover);transform:translateY(-2px);}
.toast{
  position:fixed;left:50%;bottom:90px;transform:translateX(-50%) translateY(8px);
  background:var(--c-dark);color:#fff;
  font-size:14px;padding:10px 20px;border-radius:var(--r-pill);
  opacity:0;pointer-events:none;transition:opacity var(--t), transform var(--t);
  z-index:90;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 24px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .point-grid,.step-grid{grid-template-columns:repeat(2,1fr);}
  .step-item::after{display:none;}
  .scene-list{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr 1fr;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:899px){
  .nav-group{display:none;}
  .menu-toggle,.icon-btn{display:inline-flex;}
  .header-inner{height:60px;justify-content:space-between;gap:12px;}
  .brand{width:auto;font-size:16px;flex:1 1 auto;text-align:center;}
  .cat-hero{min-height:260px;}
  .hero-title{font-size:30px;line-height:38px;}
  .faq-list{grid-template-columns:1fr;}
  .entry-row{grid-template-columns:1fr;gap:16px;padding:24px 12px;}
  .entry-fig{aspect-ratio:16 / 9;}
  .cta-band{padding:28px 22px;}
  .float-dock{display:flex;}
}
@media (max-width:639px){
  .container{padding:0 20px;}
  .section{padding:52px 0;}
  .section-title{font-size:22px;line-height:30px;}
  .section-title::before{top:4px;height:22px;}
  .hero-title{font-size:26px;line-height:34px;}
  .hero-sub{font-size:15px;line-height:26px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .point-grid,.step-grid,.rel-grid{grid-template-columns:1fr;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-top{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;}
  .grid-lines{background-image:none;}
}
@media print{
  .site-header,.float-dock,.cta-band,.site-footer{display:none !important;}
  body{background:#fff;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1462D6;
  --c-primary-hover:#0F4FAE;
  --c-primary-soft:#EAF2FE;
  --c-primary-line:rgba(20,98,214,.16);
  --c-accent:#FF6A2B;
  --c-mint:#12B39B;
  --c-bg:#F4F7FB;
  --c-surface:#FFFFFF;
  --c-ink:#0F1B2E;
  --c-title:#101C2E;
  --c-text:#45536A;
  --c-muted:#8593A8;
  --c-line:#E3E9F2;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,28,46,.04), 0 4px 12px rgba(16,28,46,.06);
  --sh-2:0 12px 28px rgba(20,98,214,.14);
  --t:200ms ease-out;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:3px solid rgba(20,98,214,.30);outline-offset:2px;border-radius:6px;}

/* ---------- 容器与板块 ---------- */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--c-surface);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-title{
  font-size:28px;
  line-height:1.3;
  font-weight:700;
  color:var(--c-title);
  display:flex;
  align-items:center;
}
.section-title::before{
  content:"";
  flex:0 0 auto;
  width:4px;
  height:24px;
  border-radius:2px;
  background:var(--c-primary);
  margin-right:14px;
}
.section-sub{
  margin-top:12px;
  font-size:15px;
  color:var(--c-muted);
  max-width:780px;
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t), border-color var(--t), background var(--t);
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--c-line);
  box-shadow:0 1px 2px rgba(16,28,46,.05), 0 6px 18px rgba(16,28,46,.06);
}
.header-inner{
  position:relative;
  display:flex;
  align-items:center;
  height:72px;
  gap:24px;
}
.nav-group{
  display:flex;
  align-items:center;
  gap:28px;
  flex:1 1 0%;
  min-width:0;
}
.nav-left{justify-content:flex-end;}
.nav-right{justify-content:flex-start;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--c-text);
  white-space:nowrap;
  padding:4px 0;
  transition:color var(--t);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.active{color:var(--c-title);font-weight:600;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-4px;
  height:2px;
  border-radius:2px;
  background:var(--c-accent);
}
.brand{
  flex:0 0 auto;
  width:224px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
}
.brand-mark{
  width:32px;
  height:32px;
  border-radius:9px;
  background:var(--c-primary);
  color:#fff;
  font-size:16px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  letter-spacing:0;
}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--c-title);
  letter-spacing:.2px;
  white-space:nowrap;
}
.menu-toggle{display:none;}
.icon-btn{
  display:none;
  width:40px;
  height:40px;
  border-radius:10px;
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-text);
  align-items:center;
  justify-content:center;
  transition:border-color var(--t),color var(--t);
}
.icon-btn:hover{border-color:var(--c-primary-line);color:var(--c-primary);}
.mobile-panel{
  display:none;
  position:absolute;
  top:100%;
  left:0;
  right:0;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 18px 32px rgba(16,28,46,.10);
  padding:16px 20px 24px;
  max-height:calc(100vh - 60px);
  overflow-y:auto;
}
.mobile-panel.open{display:block;}
.mobile-group{padding:8px 0;}
.mobile-group + .mobile-group{border-top:1px solid var(--c-line);}
.mobile-group-title{
  font-size:13px;
  color:var(--c-muted);
  padding:8px 4px;
}
.mobile-link{
  display:flex;
  align-items:center;
  height:48px;
  padding:0 12px;
  border-radius:10px;
  font-size:16px;
  color:var(--c-text);
  transition:background var(--t),color var(--t);
}
.mobile-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.mobile-link.active{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft);}
.mobile-cta{
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  height:48px;
  margin-top:16px;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  font-weight:600;
  font-size:16px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
}
.btn-primary{
  background:var(--c-primary);
  color:#fff;
  box-shadow:0 4px 12px rgba(20,98,214,.22);
}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-2px);box-shadow:0 10px 24px rgba(20,98,214,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{
  background:#fff;
  color:var(--c-primary);
  border:1px solid rgba(20,98,214,.4);
}
.btn-outline:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-outline:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn-ghost{
  background:#fff;
  color:var(--c-text);
  border:1px solid var(--c-line);
}
.btn-ghost:hover{border-color:var(--c-primary-line);color:var(--c-primary);transform:translateY(-2px);}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  transition:gap var(--t),color var(--t);
}
.link-more:hover{gap:10px;color:var(--c-primary-hover);}
.link-underline{
  color:var(--c-primary);
  font-size:15px;
  font-weight:600;
  border-bottom:1px solid transparent;
  transition:border-color var(--t),color var(--t);
}
.link-underline:hover{border-bottom-color:var(--c-accent);color:var(--c-primary-hover);}

/* ---------- 胶囊与徽章 ---------- */
.pill{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  line-height:1;
  white-space:nowrap;
}
.pill-primary{background:var(--c-primary-soft);color:var(--c-primary);}
.pill-mint{background:rgba(18,179,155,.12);color:#0E8E7C;}
.pill-outline{background:#fff;border:1px solid var(--c-primary-line);color:var(--c-text);}
.pill-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--c-muted);
  margin-bottom:16px;
}
.breadcrumb a{color:var(--c-muted);transition:color var(--t);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C7D2E1;}
.breadcrumb .current{color:var(--c-title);}

/* ---------- 页面标题区 ---------- */
.page-head{
  padding:56px 0 48px;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  position:relative;
  overflow:hidden;
}
.page-head::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(20,98,214,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(20,98,214,.04) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.page-head .container{position:relative;z-index:1;}
.page-title{
  font-size:40px;
  line-height:1.22;
  font-weight:700;
  color:var(--c-title);
  letter-spacing:-.4px;
  max-width:900px;
}
.page-desc{
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid var(--c-line);
  max-width:780px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text);
}
.page-head .pill-row{margin-top:22px;}

/* ---------- 瀑布错位卡 ---------- */
.stagger{
  display:flex;
  align-items:flex-start;
  gap:24px;
}
.stagger-col{
  flex:1 1 0%;
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:24px;
}
.stagger-col:nth-child(2){margin-top:40px;}
.stagger-col:nth-child(3){margin-top:16px;}

.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--c-primary-line);
  box-shadow:var(--sh-2);
}
.card-cover{
  display:block;
  background:var(--c-primary-soft);
  overflow:hidden;
}
.card-cover img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:0;
  transition:transform 320ms ease-out;
}
.card:hover .card-cover img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;}
.card-meta{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-muted);
  flex-wrap:wrap;
}
.card-title{
  margin-top:12px;
  font-size:17.5px;
  line-height:1.5;
  font-weight:600;
  color:var(--c-title);
}
.card-title a{transition:color var(--t);}
.card-title a:hover{color:var(--c-primary);}
.card-excerpt{
  margin-top:10px;
  font-size:14.5px;
  line-height:1.7;
  color:var(--c-text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  display:flex;
  align-items:center;
  justify-content:space-between;
}

/* ---------- 深色节奏板块 ---------- */
.rhythm{
  background:var(--c-ink);
  color:rgba(255,255,255,.78);
  border-radius:24px;
  padding:56px 48px;
}
.rhythm h2{
  font-size:28px;
  line-height:1.3;
  font-weight:700;
  color:#fff;
  display:flex;
  align-items:center;
}
.rhythm h2::before{
  content:"";
  width:4px;
  height:24px;
  border-radius:2px;
  background:var(--c-accent);
  margin-right:14px;
}
.rhythm-sub{
  margin-top:14px;
  font-size:15px;
  color:rgba(255,255,255,.62);
  max-width:720px;
}
.rhythm-grid{
  margin-top:36px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.rhythm-item{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-md);
  padding:22px 20px;
  transition:background var(--t),transform var(--t);
}
.rhythm-item:hover{background:rgba(255,255,255,.09);transform:translateY(-4px);}
.rhythm-num{
  font-size:13px;
  font-weight:700;
  color:var(--c-accent);
  letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
}
.rhythm-item h3{
  margin-top:10px;
  font-size:17px;
  font-weight:600;
  color:#fff;
}
.rhythm-item p{
  margin-top:8px;
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.62);
}

/* ---------- 要点卡 ---------- */
.point-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.point-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:26px 24px;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.point-card:hover{transform:translateY(-4px);border-color:var(--c-primary-line);box-shadow:var(--sh-2);}
.point-icon{
  width:44px;
  height:44px;
  border-radius:12px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
}
.point-card h3{
  margin-top:16px;
  font-size:18px;
  font-weight:600;
  color:var(--c-title);
}
.point-card p{
  margin-top:10px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--c-text);
}

/* ---------- 相关分类互链 ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.related-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.related-card:hover{transform:translateY(-4px);border-color:var(--c-primary-line);box-shadow:var(--sh-2);}
.related-card h3{
  font-size:18px;
  font-weight:600;
  color:var(--c-title);
}
.related-card p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--c-text);
  flex:1 1 auto;
}
.related-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:0 22px;
  transition:border-color var(--t);
}
.faq-item[open]{border-color:var(--c-primary-line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:15.5px;
  font-weight:600;
  color:var(--c-title);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;
  width:22px;
  height:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--c-primary);
  transition:transform var(--t);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-answer{
  padding:0 0 20px;
  margin-top:-2px;
  font-size:15px;
  line-height:1.75;
  color:var(--c-text);
  border-left:3px solid transparent;
  padding-left:0;
  transition:border-color var(--t),padding-left var(--t);
}
.faq-item[open] .faq-answer{
  border-left-color:var(--c-primary);
  padding-left:14px;
}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--c-primary-soft);
  border:1px solid var(--c-primary-line);
  border-radius:24px;
  padding:40px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band h2{
  font-size:24px;
  line-height:1.4;
  font-weight:700;
  color:var(--c-title);
}
.cta-band p{
  margin-top:10px;
  font-size:15px;
  color:var(--c-text);
  max-width:620px;
}
.cta-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  flex:0 0 auto;
}
.back-links{
  margin-top:28px;
  display:flex;
  gap:28px;
  flex-wrap:wrap;
  align-items:center;
  font-size:15px;
}

/* ---------- 浮动按钮 ---------- */
.float-actions{
  position:fixed;
  right:20px;
  bottom:24px;
  display:flex;
  flex-direction:column;
  gap:12px;
  z-index:50;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.float-actions.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-btn{
  width:48px;
  height:48px;
  border-radius:50%;
  background:var(--c-primary);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 8px 20px rgba(20,98,214,.28);
  transition:transform var(--t),background var(--t);
}
.float-btn:hover{transform:translateY(-2px);background:var(--c-primary-hover);}
.float-btn.outline{
  background:#fff;
  color:var(--c-primary);
  border:1px solid var(--c-primary-line);
  box-shadow:var(--sh-1);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:rgba(255,255,255,.72);
  padding:72px 0 32px;
}
.footer-top{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:#fff;
}
.footer-logo::before{
  content:"爱";
  width:30px;
  height:30px;
  border-radius:8px;
  background:var(--c-primary);
  color:#fff;
  font-size:15px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.75;
  color:rgba(255,255,255,.62);
  max-width:340px;
}
.footer-social{
  margin-top:20px;
  display:flex;
  gap:12px;
}
.footer-social span{
  width:36px;
  height:36px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.14);
  display:flex;
  align-items:center;
  justify-content:center;
  color:rgba(255,255,255,.72);
  transition:border-color var(--t),color var(--t);
}
.footer-social span:hover{border-color:var(--c-accent);color:#fff;}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links li{margin-bottom:14px;}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  border-bottom:1px solid transparent;
  transition:color var(--t),border-color var(--t);
}
.footer-links a:hover{color:#fff;border-bottom-color:var(--c-accent);}
.footer-contact p{font-size:14px;margin-bottom:14px;color:rgba(255,255,255,.72);}
.footer-sites{
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:20px;
  font-size:13.5px;
}
.footer-sites span{color:rgba(255,255,255,.45);}
.footer-sites a{
  color:rgba(255,255,255,.72);
  border-bottom:1px solid transparent;
  transition:color var(--t),border-color var(--t);
}
.footer-sites a:hover{color:#fff;border-bottom-color:var(--c-accent);}
.footer-bottom{
  margin-top:24px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.48);
  font-variant-numeric:tabular-nums;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
}
@media (max-width:1023px){
  .nav-group{display:none;}
  .header-inner{height:60px;justify-content:space-between;}
  .site-header .brand{
    position:absolute;
    left:50%;
    top:50%;
    transform:translate(-50%,-50%);
    width:auto;
  }
  .brand-text{font-size:15px;}
  .brand-mark{width:28px;height:28px;font-size:14px;}
  .menu-toggle{
    display:flex;
    width:40px;
    height:40px;
    border-radius:10px;
    border:1px solid var(--c-line);
    background:#fff;
    color:var(--c-text);
    align-items:center;
    justify-content:center;
  }
  .icon-btn{display:flex;}
  .page-title{font-size:32px;}
  .section{padding:64px 0;}
  .stagger{flex-wrap:wrap;}
  .stagger-col{flex:1 1 calc(50% - 12px);}
  .stagger-col:nth-child(2){margin-top:32px;}
  .stagger-col:nth-child(3){margin-top:0;}
  .rhythm{padding:44px 32px;}
  .rhythm-grid{grid-template-columns:repeat(2,1fr);}
  .point-grid{grid-template-columns:repeat(2,1fr);}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .footer-top{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .nav-link{font-size:14px;}
  .page-head{padding:36px 0 32px;}
  .page-title{font-size:30px;line-height:1.3;}
  .section{padding:48px 0;}
  .section-title{font-size:22px;}
  .section-title::before{height:20px;margin-right:10px;}
  .stagger{flex-direction:column;}
  .stagger-col{width:100%;flex:1 1 auto;margin-top:0 !important;}
  .rhythm{padding:32px 22px;border-radius:18px;}
  .rhythm-grid{grid-template-columns:1fr;gap:16px;}
  .point-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-top{grid-template-columns:1fr;gap:32px;}
  .footer-desc{max-width:none;}
  .footer-links a{display:inline-block;line-height:40px;}
  .float-actions{right:16px;bottom:16px;}
  .btn{height:48px;}
}
@media (max-width:520px){
  .page-title{font-size:26px;}
  .card-body{padding:18px;}
  .cta-band h2{font-size:20px;}
}
@media print{
  .site-header,.float-actions,.cta-band,.footer-sites{display:none;}
  body{background:#fff;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1462D6;
  --c-primary-dark:#0F4FAE;
  --c-primary-soft:#EAF2FE;
  --c-primary-line:rgba(20,98,214,.16);
  --c-accent:#FF6A2B;
  --c-mint:#12B39B;
  --c-bg:#F4F7FB;
  --c-surface:#FFFFFF;
  --c-dark:#0F1B2E;
  --t-title:#101C2E;
  --t-body:#45536A;
  --t-muted:#8593A8;
  --line:#E3E9F2;
  --shadow-sm:0 1px 2px rgba(16,28,46,.04), 0 4px 12px rgba(16,28,46,.06);
  --shadow-hover:0 12px 28px rgba(20,98,214,.14);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--c-bg);
  color:var(--t-body);
  font-size:16px;
  line-height:1.75;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
time{font-variant-numeric:tabular-nums;}

.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease-out, border-color .2s ease-out, background .2s ease-out;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 6px 18px rgba(16,28,46,.07);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:72px;
}
.nav-group{
  display:flex;
  align-items:center;
  gap:24px;
  flex:1 1 0;
  min-width:0;
}
.nav-left{justify-content:flex-end;}
.nav-right{justify-content:flex-start;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--t-body);
  padding:6px 0;
  white-space:nowrap;
  transition:color .18s ease-out;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.active{color:var(--t-title);font-weight:600;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;right:0;
  bottom:-6px;
  height:2px;
  border-radius:2px;
  background:var(--c-accent);
}
.brand-logo{
  flex:0 0 auto;
  width:222px;
  text-align:center;
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--t-title);
}
.brand-logo span{color:var(--c-primary);}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  border-radius:10px;
}
.nav-toggle span{
  display:block;
  width:20px;height:2px;
  border-radius:2px;
  background:var(--t-title);
  transition:transform .2s ease-out, opacity .2s ease-out;
}
.icon-btn{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--t-body);
  background:#fff;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform .2s ease-out, box-shadow .2s ease-out, background .2s ease-out, border-color .2s ease-out, color .2s ease-out;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(20,98,214,.24);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--c-primary);border:1px solid rgba(20,98,214,.4);}
.btn-outline:hover{background:var(--c-primary-soft);border-color:var(--c-primary);transform:translateY(-2px);}
.btn:focus-visible,.nav-link:focus-visible,.text-link:focus-visible,.chip:focus-visible,.faq-item summary:focus-visible{
  outline:3px solid rgba(20,98,214,.30);
  outline-offset:2px;
  border-radius:10px;
}
.nav-cta{height:42px;padding:0 20px;font-size:14px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  transition:color .18s ease-out;
}
.text-link svg{transition:transform .2s ease-out;}
.text-link:hover{color:var(--c-primary-dark);text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px;text-decoration-thickness:1px;}
.text-link:hover svg{transform:translateX(3px);}

/* ---------- Mobile panel ---------- */
.mobile-panel{
  position:fixed;
  top:60px;left:0;right:0;bottom:0;
  background:#fff;
  border-top:1px solid var(--line);
  z-index:55;
  padding:24px 0 40px;
  overflow-y:auto;
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity .2s ease-out, transform .2s ease-out, visibility .2s ease-out;
}
.mobile-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-group + .mobile-group{margin-top:24px;}
.mobile-group h3{
  font-size:13px;
  font-weight:600;
  color:var(--t-muted);
  letter-spacing:.08em;
  margin-bottom:4px;
}
.mobile-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  font-size:16px;
  color:var(--t-title);
  border-bottom:1px solid var(--line);
}
.mobile-link.active{color:var(--c-primary);font-weight:600;}
.mobile-link svg{color:var(--t-muted);}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t-muted);
  margin-bottom:16px;
}
.breadcrumb a{color:var(--t-muted);transition:color .18s ease-out;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C3CDDC;}
.breadcrumb .current{color:var(--t-title);}

/* ---------- Page head ---------- */
.page-head{
  padding:40px 0 0;
  background:
    linear-gradient(rgba(20,98,214,.04) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, rgba(20,98,214,.04) 1px, transparent 1px) 0 0 / 24px 24px,
    var(--c-bg);
}
.page-title{
  font-size:40px;
  line-height:1.2;
  font-weight:700;
  color:var(--t-title);
  letter-spacing:-.01em;
}
.page-desc{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--line);
  max-width:780px;
  font-size:15px;
  line-height:1.8;
  color:var(--t-body);
}
.filter-bar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.filter-bar .label{
  font-size:13px;
  color:var(--t-muted);
  margin-right:2px;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 16px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  font-size:13px;
  color:var(--t-body);
  transition:background .18s ease-out, color .18s ease-out, border-color .18s ease-out, transform .18s ease-out;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;}

/* ---------- Sections ---------- */
.section{padding:80px 0 0;}
.section-head{margin-bottom:28px;}
.section-head h2{
  position:relative;
  padding-left:14px;
  font-size:28px;
  line-height:1.3;
  font-weight:700;
  color:var(--t-title);
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;
  border-radius:2px;
  background:var(--c-primary);
}
.section-head p{
  margin-top:10px;
  padding-left:14px;
  font-size:15px;
  color:var(--t-muted);
}

/* ---------- Layout with side col ---------- */
.layout-main{display:grid;gap:32px;}
@media (min-width:1024px){
  .layout-main{grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;}
}

/* ---------- Entry cards ---------- */
.card-grid{display:grid;gap:24px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
.entry-card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
}
.entry-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:var(--c-primary-line);
}
.entry-cover{
  position:relative;
  display:block;
  aspect-ratio:4 / 3;
  background:var(--c-primary-soft);
  overflow:hidden;
}
.entry-cover::before{
  content:attr(data-fallback);
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:30px;
  font-weight:700;
  color:rgba(20,98,214,.35);
}
.entry-cover img{
  position:relative;
  z-index:1;
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .25s ease-out;
}
.entry-card:hover .entry-cover img{transform:scale(1.03);}
.entry-body{
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
  padding:22px;
}
.entry-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--t-muted);
}
.pill{
  display:inline-flex;
  align-items:center;
  height:25px;
  padding:0 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
}
.pill-primary{background:var(--c-primary-soft);color:var(--c-primary);}
.pill-mint{background:rgba(18,179,155,.12);color:#0E8C7A;}
.entry-title{
  margin-top:12px;
  font-size:17px;
  line-height:1.55;
  font-weight:600;
  color:var(--t-title);
}
.entry-title a:hover{color:var(--c-primary);}
.entry-summary{
  margin-top:8px;
  font-size:14px;
  line-height:1.75;
  color:var(--t-body);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.entry-foot{
  margin-top:auto;
  padding-top:16px;
}

/* ---------- Side column ---------- */
.side-col{display:flex;flex-direction:column;gap:24px;}
@media (min-width:1024px){
  .side-col{position:sticky;top:96px;}
}
.side-card{
  background:var(--c-surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--shadow-sm);
}
.side-card h3{
  font-size:16px;
  font-weight:700;
  color:var(--t-title);
  margin-bottom:14px;
}
.side-list li + li{border-top:1px solid var(--line);}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  min-height:48px;
  font-size:15px;
  color:var(--t-body);
  transition:color .18s ease-out, padding .18s ease-out;
}
.side-list a:hover{color:var(--c-primary);padding-left:4px;}
.side-list a svg{color:var(--t-muted);flex:0 0 auto;}
.side-note{
  font-size:14px;
  line-height:1.8;
  color:var(--t-body);
}
.side-note + .side-note{margin-top:8px;}
.side-back{margin-top:16px;}

/* ---------- Steps ---------- */
.step-list{display:grid;gap:20px;}
@media (min-width:640px){.step-list{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.step-list{grid-template-columns:repeat(4,minmax(0,1fr));}}
.step-item{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--c-primary-line);}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:12px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:15px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step-item h3{
  margin-top:16px;
  font-size:17px;
  line-height:1.5;
  font-weight:600;
  color:var(--t-title);
}
.step-item p{
  margin-top:8px;
  font-size:14px;
  line-height:1.75;
  color:var(--t-body);
}

/* ---------- Issue cards ---------- */
.issue-grid{display:grid;gap:20px;}
@media (min-width:768px){.issue-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
.issue-card{
  display:flex;
  gap:16px;
  background:var(--c-primary-soft);
  border:1px solid rgba(20,98,214,.10);
  border-radius:var(--r-md);
  padding:22px;
}
.issue-icon{
  flex:0 0 auto;
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:#fff;
  color:var(--c-primary);
}
.issue-card h3{
  font-size:16px;
  font-weight:600;
  color:var(--t-title);
  line-height:1.5;
}
.issue-card p{
  margin-top:6px;
  font-size:14px;
  line-height:1.75;
  color:var(--t-body);
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;}
@media (min-width:768px){.faq-list{grid-template-columns:repeat(2,minmax(0,1fr));}}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid transparent;
  border-radius:var(--r-md);
  transition:border-color .2s ease-out, background .2s ease-out;
}
.faq-item[open]{border-left-color:var(--c-primary);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:12px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--t-title);
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:20px;height:20px;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--c-primary);
  border-radius:2px;
  transition:transform .2s ease-out, opacity .2s ease-out;
}
.faq-icon::before{left:3px;right:3px;top:9px;height:2px;}
.faq-icon::after{top:3px;bottom:3px;left:9px;width:2px;}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-answer{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--t-body);
}

/* ---------- CTA band ---------- */
.cta-band{
  margin-top:80px;
  background:var(--c-primary-soft);
  border:1px solid rgba(20,98,214,.12);
  border-radius:var(--r-lg);
  padding:40px;
  display:grid;
  gap:24px;
}
@media (min-width:1024px){
  .cta-band{grid-template-columns:minmax(0,1fr) auto;align-items:center;padding:44px 48px;}
}
.cta-band h2{
  font-size:24px;
  line-height:1.4;
  font-weight:700;
  color:var(--t-title);
}
.cta-band p{
  margin-top:10px;
  font-size:15px;
  color:var(--t-body);
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-back{margin-top:18px;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:96px;
  background:var(--c-dark);
  color:rgba(255,255,255,.72);
  padding-top:64px;
}
.footer-top{
  display:grid;
  gap:32px;
  grid-template-columns:1fr;
}
@media (min-width:768px){
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (min-width:1024px){
  .footer-top{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
}
.footer-logo{
  display:inline-block;
  font-size:18px;
  font-weight:700;
  color:#fff;
}
.footer-desc{
  margin-top:14px;
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
  max-width:320px;
}
.footer-social{
  display:flex;
  gap:10px;
  margin-top:18px;
}
.footer-social span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.72);
  transition:background .2s ease-out, color .2s ease-out, border-color .2s ease-out;
}
.footer-social span:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.3);}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:10px;
}
.footer-links li{line-height:40px;}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .18s ease-out;
}
.footer-links a:hover{
  color:#fff;
  text-decoration:underline;
  text-decoration-color:var(--c-accent);
  text-decoration-thickness:1px;
  text-underline-offset:4px;
}
.footer-contact p{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.6);
}
.footer-sites{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:40px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-sites a{color:rgba(255,255,255,.72);transition:color .18s ease-out;}
.footer-sites a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- Floating tools ---------- */
.float-tools{
  position:fixed;
  right:16px;
  bottom:20px;
  display:flex;
  flex-direction:column;
  gap:10px;
  z-index:50;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .2s ease-out, transform .2s ease-out, visibility .2s ease-out;
}
.float-tools.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-btn{
  width:48px;height:48px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:var(--c-primary);
  color:#fff;
  border:1px solid rgba(255,255,255,.5);
  box-shadow:0 10px 22px rgba(20,98,214,.28);
  transition:transform .2s ease-out, background .2s ease-out;
}
.float-btn:hover{transform:translateY(-2px);background:var(--c-primary-dark);}
@media (min-width:768px){.float-tools{display:none;}}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .nav-group,.nav-cta,.header-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .icon-btn{display:inline-flex;}
  .header-inner{
    display:grid;
    grid-template-columns:44px 1fr 44px;
    gap:0;
    height:60px;
  }
  .brand-logo{width:auto;font-size:15px;}
  .icon-btn{justify-self:end;}
}
@media (min-width:1024px){
  .mobile-panel{display:none;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding-top:48px;}
  .page-head{padding-top:24px;background:var(--c-bg);}
  .page-title{font-size:30px;line-height:1.28;}
  .section-head h2{font-size:22px;}
  .cta-band{margin-top:48px;padding:28px 22px;}
  .cta-actions .btn{width:100%;}
  .site-footer{margin-top:56px;padding-top:48px;}
  .step-num{width:36px;height:36px;}
}
@media (max-width:519px){
  .entry-body{padding:18px;}
  .side-card{padding:20px;}
  .issue-card{padding:18px;gap:12px;}
  .faq-item summary{font-size:15px;padding:12px 16px;}
  .faq-answer{padding:0 16px 18px;}
}