/* roulang page: index */
:root{
  --c-indigo:#241A5B;
  --c-indigo2:#3B2A8C;
  --c-deep:#16123A;
  --c-cyan:#17BFD0;
  --c-cyan-soft:#E6F7FA;
  --c-coral:#FF7A45;
  --c-gold:#FFC24B;
  --c-bg:#F5F4FB;
  --c-card:#FFFFFF;
  --c-line:#E7E5F2;
  --c-text:#15132B;
  --c-muted:#5A5776;
  --c-weak:#8B88A6;
  --c-ok:#16A34A;
  --c-warn:#E4572E;
  --grad-brand:linear-gradient(135deg,#241A5B 0%,#3B2A8C 54%,#17BFD0 100%);
  --grad-cta:linear-gradient(135deg,#FF7A45 0%,#FFC24B 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-xs:12px;
  --sh-1:0 8px 24px rgba(36,26,91,.08);
  --sh-2:0 16px 40px rgba(36,26,91,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:140px;}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.9;font-weight:400;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-indigo);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-coral);}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.25;font-weight:700;}
h2{font-size:34px;}
h3{font-size:22px;}
h4{font-size:18px;}
[hidden]{display:none !important;}
:focus-visible{outline:2px solid var(--c-cyan);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--white{background:#fff;}
.section--tight{padding:72px 0;}
.section__head{max-width:760px;margin-bottom:48px;}
.section__head h2{margin-bottom:14px;}
.section__head p{color:var(--c-muted);font-size:16px;}
.section__head--split{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.section__head--split .section__head-text{max-width:640px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.04em;color:#CFE9F0;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
  border-radius:999px;padding:5px 14px;margin-bottom:20px;
}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--c-cyan-soft);color:#0E6C79;
}
.tag--coral{background:#FFF1EB;color:#C24A1E;}
.tag--gold{background:#FFF7E3;color:#9A6B00;}
.grid-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-indigo);}
.grid-arrow::after{content:"→";transition:transform .25s var(--ease);}
.grid-arrow:hover{color:var(--c-coral);}
.grid-arrow:hover::after{transform:translateX(3px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:999px;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 .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{background:var(--grad-cta);color:#16123A;box-shadow:0 10px 24px rgba(255,122,69,.28);}
.btn--primary:hover{color:#16123A;transform:translateY(-1px);box-shadow:0 14px 30px rgba(255,122,69,.36);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(255,122,69,.28);}
.btn--secondary{background:#fff;color:var(--c-indigo);border-color:#CFCBE6;}
.btn--secondary:hover{color:var(--c-indigo);border-color:var(--c-cyan);background:var(--c-cyan-soft);transform:translateY(-1px);}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn--ghost:hover{color:#fff;background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.75);}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:200;background:#fff;box-shadow:0 2px 14px rgba(36,26,91,.06);}
.topbar{border-bottom:1px solid var(--c-line);}
.topbar__inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand__mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad-brand);position:relative;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
  box-shadow:0 8px 18px rgba(36,26,91,.24);
}
.brand__mark::before{
  content:"";width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(255,255,255,.9);border-top-color:var(--c-gold);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__name{font-size:17px;font-weight:700;color:var(--c-indigo);letter-spacing:.01em;}
.brand__sub{font-size:11px;color:var(--c-weak);letter-spacing:.08em;}
.brand:hover .brand__name{color:var(--c-indigo);}
.nav-search{flex:1 1 auto;max-width:420px;position:relative;display:flex;align-items:center;}
.nav-search input{
  width:100%;height:42px;padding:0 48px 0 18px;border-radius:999px;
  border:1px solid var(--c-line);background:#F8F7FD;font-size:14px;
  transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--c-weak);}
.nav-search input:focus{outline:none;background:#fff;border-color:var(--c-cyan);box-shadow:0 0 0 4px rgba(23,191,208,.14);}
.nav-search button{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:32px;height:32px;border-radius:50%;border:0;background:var(--c-cyan-soft);
  color:#0E6C79;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;
  transition:background .2s var(--ease);
}
.nav-search button:hover{background:#D2EFF4;}
.topbar__cta{flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-indigo);border-radius:2px;}
.mobile-panel{
  display:none;flex-direction:column;gap:12px;padding:16px 24px 20px;
  background:#fff;border-bottom:1px solid var(--c-line);
}
.channel-bar{background:#FBFAFF;border-bottom:1px solid var(--c-line);}
.channel-bar__inner{
  display:flex;align-items:center;gap:10px;height:56px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-bar__inner::-webkit-scrollbar{display:none;}
.channel-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;font-size:14px;font-weight:600;color:var(--c-muted);background:#F1EFFA;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.channel-pill:hover{background:var(--c-cyan-soft);color:var(--c-indigo);}
.channel-pill.is-active{background:var(--grad-brand);color:#fff;box-shadow:0 6px 16px rgba(36,26,91,.24);}

/* ---------- Hero ---------- */
.hero{padding:40px 0 0;}
.hero__card{
  position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
  background:var(--grad-brand);border-radius:var(--r-lg);padding:56px 48px 88px;color:#fff;overflow:hidden;
}
.hero__card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.85) 1px,transparent 1px);
  background-size:46px 46px;opacity:.07;
}
.hero__text{position:relative;z-index:2;}
.hero h1{font-size:44px;color:#fff;margin-bottom:18px;}
.hero__sub{font-size:17px;color:rgba(255,255,255,.84);max-width:32em;margin-bottom:30px;line-height:1.85;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero__media{position:relative;z-index:2;border-radius:var(--r-md);overflow:hidden;border:1px solid rgba(255,255,255,.16);}
.hero__media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.hero__badges{
  position:relative;z-index:3;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;margin-top:-46px;padding:0 8px;
}
.hero__badges li{
  background:rgba(255,255,255,.97);border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:16px 20px;box-shadow:var(--sh-1);
}
.hero__badges strong{display:block;font-size:26px;font-weight:700;color:var(--c-indigo);line-height:1.2;}
.hero__badges span{display:block;font-size:13px;color:var(--c-weak);margin-top:4px;}

/* ---------- 三步上手 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.step{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:32px 28px;box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#C9C3EC;}
.step:not(:last-child)::after{
  content:"";position:absolute;top:60px;right:-16px;width:32px;border-top:2px dashed #CFCBE6;
}
.step__no{
  display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;
  border-radius:18px;background:var(--grad-brand);color:#fff;font-size:20px;font-weight:700;
  letter-spacing:.02em;margin-bottom:20px;box-shadow:0 10px 22px rgba(36,26,91,.22);
}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{color:var(--c-muted);font-size:15px;}

/* ---------- 频道与数据展示 ---------- */
.channel-showcase{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch;}
.showcase-main{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.showcase-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.showcase-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.showcase-main__body{padding:26px 28px 30px;}
.showcase-main__body h3{font-size:22px;margin:12px 0 10px;}
.showcase-main__body p{color:var(--c-muted);font-size:15px;}
.showcase-list{display:grid;gap:16px;}
.showcase-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);padding:22px 24px;
  box-shadow:var(--sh-1);display:flex;gap:18px;align-items:flex-start;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.showcase-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#C9C3EC;}
.showcase-item__icon{
  flex:0 0 auto;width:46px;height:46px;border-radius:14px;background:var(--c-cyan-soft);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:#0E6C79;
}
.showcase-item h4{font-size:17px;margin-bottom:6px;}
.showcase-item p{color:var(--c-muted);font-size:14px;}

/* ---------- 案例证明 ---------- */
.cases{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;align-items:stretch;}
.case-main{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.case-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.case-main__media{position:relative;}
.case-main__media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.badge-float{
  position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.96);border-radius:14px;
  padding:10px 16px;box-shadow:var(--sh-1);display:flex;align-items:baseline;gap:8px;
}
.badge-float strong{font-size:20px;color:var(--c-coral);font-weight:700;}
.badge-float span{font-size:12px;color:var(--c-muted);}
.case-main__body{padding:28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.case-main__body h3{font-size:22px;}
.case-main__body p{color:var(--c-muted);font-size:15px;}
.case-side{display:grid;gap:24px;grid-auto-rows:1fr;}
.evidence{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);padding:24px 26px;
  box-shadow:var(--sh-1);display:flex;gap:18px;align-items:center;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.evidence:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#C9C3EC;}
.evidence__num{font-size:28px;font-weight:700;color:var(--c-indigo);line-height:1.1;flex:0 0 auto;}
.evidence__num em{font-style:normal;font-size:14px;color:var(--c-coral);margin-left:2px;}
.evidence__txt strong{display:block;font-size:15px;font-weight:600;margin-bottom:4px;}
.evidence__txt span{font-size:13px;color:var(--c-weak);}

/* ---------- 最新动态 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#C9C3EC;}
.post-card__media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--c-cyan-soft);}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.post-card:hover .post-card__media img{transform:scale(1.03);}
.post-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card__title{font-size:17px;font-weight:600;line-height:1.5;}
.post-card__title a{color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card__title a:hover{color:var(--c-indigo);}
.post-card__excerpt{color:var(--c-muted);font-size:14px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0;}
.post-card__meta{margin-top:auto;padding-top:12px;border-top:1px dashed var(--c-line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-weak);}
.empty-state{
  grid-column:1/-1;min-height:220px;border-radius:var(--r-md);border:1px dashed #CFCBE6;background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:40px 24px;
}
.empty-state__icon{
  width:56px;height:56px;border-radius:18px;background:var(--c-cyan-soft);
  display:flex;align-items:center;justify-content:center;font-size:24px;color:#0E6C79;
}
.empty-state p{color:var(--c-muted);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:start;}
.faq-intro h2{margin-bottom:14px;}
.faq-intro p{color:var(--c-muted);font-size:15px;margin-bottom:24px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);padding:0 24px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 0;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--c-cyan);line-height:1;flex:0 0 auto;
  transition:transform .25s var(--ease);
}
.faq-item[open]{border-color:#C9C3EC;box-shadow:var(--sh-1);}
.faq-item[open] summary::after{content:"−";}
.faq-item__body{
  border-top:1px dashed var(--c-line);padding:16px 0 22px;color:var(--c-muted);font-size:15px;line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;background:var(--grad-brand);border-radius:var(--r-lg);
  padding:48px;display:grid;grid-template-columns:1fr .9fr;gap:48px;align-items:center;color:#fff;
}
.cta-card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.85) 1px,transparent 1px);
  background-size:40px 40px;opacity:.07;
}
.cta-card__text{position:relative;z-index:2;}
.cta-card h2{color:#fff;font-size:34px;margin-bottom:16px;}
.cta-card p{color:rgba(255,255,255,.82);font-size:15px;margin-bottom:22px;}
.cta-points{display:grid;gap:12px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.9);}
.cta-points li::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--c-gold);
  flex:0 0 auto;margin-top:11px;
}
.cta-form{
  position:relative;z-index:2;background:rgba(255,255,255,.98);border-radius:var(--r-md);
  padding:28px;box-shadow:0 20px 48px rgba(11,8,36,.28);
}
.cta-form label{display:block;font-size:13px;font-weight:600;color:var(--c-muted);margin-bottom:8px;}
.field{margin-bottom:18px;}
.field input,.field select{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-xs);border:1px solid var(--c-line);
  background:#FBFAFF;font-size:15px;color:var(--c-text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field input:focus,.field select:focus{
  outline:none;background:#fff;border-color:var(--c-cyan);box-shadow:0 0 0 4px rgba(23,191,208,.16);
}
.field input::placeholder{color:var(--c-weak);}
.form-note{font-size:12px;color:var(--c-weak);margin-top:12px;text-align:center;}
.form-status{font-size:13px;color:var(--c-ok);margin-top:10px;text-align:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand__name{color:#fff;}
.footer-brand .brand__sub{color:rgba(255,255,255,.55);}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:18px;max-width:32em;color:rgba(255,255,255,.66);}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-col a:hover{color:var(--c-cyan);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.7);}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .post-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .hero h1{font-size:38px;}
  .cta-card h2{font-size:30px;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .section--tight{padding:56px 0;}
  h2{font-size:28px;}
  .hero__card{grid-template-columns:1fr;padding:40px 32px 80px;gap:32px;}
  .hero__media{order:-1;}
  .hero h1{font-size:32px;}
  .hero__badges{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:-40px;}
  .steps{grid-template-columns:1fr;}
  .step:not(:last-child)::after{display:none;}
  .channel-showcase{grid-template-columns:1fr;}
  .cases{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .cta-card{grid-template-columns:1fr;padding:36px 28px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .nav-search{display:none;}
  .topbar__cta{display:none;}
  .nav-toggle{display:flex;}
  .mobile-panel{display:flex;}
  .topbar__inner{justify-content:space-between;height:62px;}
  .channel-bar__inner{height:52px;}
  .hero{padding:24px 0 0;}
  .hero__card{padding:32px 22px 72px;border-radius:var(--r-md);}
  .hero h1{font-size:27px;}
  .hero__sub{font-size:15px;}
  .hero__badges{padding:0;}
  .hero__badges strong{font-size:22px;}
  .section__head{margin-bottom:32px;}
  .section__head--split{align-items:flex-start;}
  .cta-card h2{font-size:24px;}
  .post-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .btn{width:100%;}
  .hero__actions{flex-direction:column;}
  .hero__badges{gap:12px;}
  .case-main__body,.showcase-main__body{padding:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --ink-900:#16123A;
  --ink-800:#241A5B;
  --ink-700:#3B2A8C;
  --cyan:#17BFD0;
  --cyan-deep:#0F7C89;
  --cyan-soft:#E6F7FA;
  --orange:#FF7A45;
  --gold:#FFC24B;
  --bg:#F5F4FB;
  --card:#FFFFFF;
  --line:#E7E5F2;
  --text:#15132B;
  --text-2:#5A5776;
  --text-3:#8B88A6;
  --grad:linear-gradient(135deg,#241A5B 0%,#3B2A8C 52%,#17BFD0 100%);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh:0 8px 24px rgba(36,26,91,.08);
  --sh-h:0 16px 40px rgba(36,26,91,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:140px}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-700);text-decoration:none;transition:color .2s var(--ease),text-decoration-color .2s var(--ease)}
a:hover{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease)}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(36,26,91,.08)}
.top-row__inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand__mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);position:relative;flex:0 0 auto;
  box-shadow:0 8px 18px rgba(36,26,91,.22);
}
.brand__mark::after{
  content:"";position:absolute;left:50%;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--gold);transform:translate(-50%,-50%);box-shadow:0 0 0 6px rgba(255,194,75,.18);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-size:17px;font-weight:700;color:var(--ink-900)}
.brand__sub{font-size:11.5px;color:var(--text-3);letter-spacing:.5px}
.nav-search{
  flex:1 1 auto;max-width:420px;margin:0 auto;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 18px;border-radius:var(--r-pill);background:#F7F6FD;border:1px solid var(--line);
  transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--cyan);background:#fff;box-shadow:0 0 0 4px rgba(23,191,208,.12)}
.nav-search i{color:var(--text-3);font-size:14px}
.nav-search input{
  flex:1;border:0;background:transparent;outline:none;font-size:14.5px;color:var(--text);height:100%;
}
.nav-search input::placeholder{color:var(--text-3)}
.top-row__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);
  padding:0;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-800);border-radius:2px}

.channel-bar{background:#F7F6FD;border-top:1px solid var(--line)}
.channel-bar__inner{
  display:flex;align-items:center;gap:10px;height:52px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--text-2);font-size:14px;font-weight:600;
  transition:all .22s var(--ease);white-space:nowrap;
}
.channel-pill:hover{color:var(--ink-800);border-color:#C9C3EC;text-decoration:none;transform:translateY(-1px)}
.channel-pill.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 18px rgba(36,26,91,.2)}
.channel-pill.is-active:hover{color:#fff}

.mobile-drawer{
  position:fixed;left:0;right:0;top:120px;bottom:0;background:#fff;z-index:70;
  padding:22px 16px 48px;overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:none}
.mobile-drawer h4{font-size:13px;color:var(--text-3);margin:18px 0 10px;font-weight:600}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 16px;margin-bottom:8px;
  border:1px solid var(--line);border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--ink-800);background:#FBFAFF;
}
.mobile-drawer a:hover{text-decoration:none;border-color:#C9C3EC;background:#fff}

/* ---------- buttons & pills ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;padding:12px 24px;min-height:46px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),filter .25s var(--ease);
  line-height:1.2;text-align:center;
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(36,26,91,.18)}
.btn--primary:hover{color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 14px 30px rgba(36,26,91,.26);filter:brightness(1.06)}
.btn--primary:active{transform:translateY(0)}
.btn--outline{background:#fff;color:var(--ink-800);border-color:#D9D6EE}
.btn--outline:hover{color:var(--ink-800);text-decoration:none;border-color:var(--ink-700);transform:translateY(-1px);box-shadow:var(--sh)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn--ghost:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none;transform:translateY(-1px)}
.btn--sm{padding:9px 18px;font-size:14px;min-height:40px}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;background:var(--cyan-soft);color:var(--cyan-deep);
  border:1px solid rgba(23,191,208,.28);
}
.pill--gold{background:rgba(255,194,75,.14);color:#9A6B05;border-color:rgba(255,194,75,.4)}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);padding:14px 0}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);white-space:nowrap;overflow:hidden}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--cyan)}
.crumb__sep{color:#C6C2DE}
.crumb__cur{
  color:var(--ink-800);font-weight:600;overflow:hidden;text-overflow:ellipsis;max-width:460px;display:inline-block;
}

/* ---------- article hero ---------- */
.article-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,#F7F6FE 100%);
  border-bottom:1px solid var(--line);padding:42px 0 34px;
}
.article-hero h1{
  font-size:40px;line-height:1.32;margin:16px 0 0;max-width:900px;color:var(--ink-900);
}
.article-hero__lead{
  margin-top:18px;font-size:16.5px;line-height:1.9;color:var(--text-2);max-width:820px;
}
.article-meta{
  margin-top:24px;display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px;
  font-size:13.5px;color:var(--text-2);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--cyan);font-size:13px}
.share-btn{
  margin-left:auto;display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink-800);font-size:13.5px;font-weight:600;cursor:pointer;
  transition:all .22s var(--ease);
}
.share-btn:hover{border-color:#C9C3EC;box-shadow:var(--sh);transform:translateY(-1px)}
.share-btn.is-done{border-color:var(--cyan);color:var(--cyan-deep);background:var(--cyan-soft)}

/* ---------- layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding:44px 0 8px;align-items:start}
.article-main{min-width:0}

/* ---------- article body ---------- */
.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:40px 44px;
  box-shadow:var(--sh);max-width:820px;
}
.article-body p{margin:0 0 1.2em;font-size:16.5px;line-height:1.9;color:#272343}
.article-body h2{
  position:relative;font-size:26px;line-height:1.42;margin:1.9em 0 .8em;padding-left:16px;color:var(--ink-900);
}
.article-body h2:first-child{margin-top:0}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:5px;border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:20px;line-height:1.5;margin:1.6em 0 .6em;color:var(--ink-900)}
.article-body h4{font-size:17px;margin:1.4em 0 .5em;color:var(--ink-800)}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.35em;color:#272343}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.45em 0;line-height:1.85}
.article-body blockquote{
  margin:1.6em 0;padding:18px 24px;background:var(--cyan-soft);border-left:4px solid var(--cyan);
  border-radius:0 var(--r-md) var(--r-md) 0;color:var(--ink-800);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:1.6em 0;width:100%;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figure img{margin:0}
.article-body figcaption{font-size:13px;color:var(--text-3);margin-top:10px;text-align:center}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;margin:1.6em 0;font-size:15px;
}
.article-body thead th{background:#F1EFFB;text-align:left;padding:12px 16px;font-weight:600;color:var(--ink-800)}
.article-body tbody td{padding:12px 16px;border-top:1px solid var(--line);color:var(--text-2)}
.article-body tbody tr:nth-child(even){background:#FBFAFF}
.article-body tbody tr:hover{background:var(--cyan-soft)}
.article-body a{color:var(--ink-700);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--cyan)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:#FBFAFF;border:1px dashed #D8D4EE;border-radius:var(--r-md);padding:40px 24px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--cyan)}
.empty-state p{font-size:15.5px;color:var(--text-2)}

/* ---------- tags & post nav ---------- */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px;padding:20px 24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh);
}
.article-tags__label{font-size:13.5px;color:var(--text-3);font-weight:600;margin-right:4px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:#F7F6FD;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-800);
  transition:all .22s var(--ease);
}
.tag:hover{background:var(--cyan-soft);border-color:rgba(23,191,208,.4);color:var(--cyan-deep);text-decoration:none;transform:translateY(-1px)}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:22px}
.post-nav__item{
  display:flex;flex-direction:column;gap:6px;padding:20px 22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh);transition:all .25s var(--ease);
}
.post-nav__item:hover{text-decoration:none;transform:translateY(-3px);box-shadow:var(--sh-h);border-color:#CFC9F0}
.post-nav__item--next{text-align:right;align-items:flex-end}
.post-nav__dir{font-size:12.5px;color:var(--text-3)}
.post-nav__label{font-size:16px;font-weight:700;color:var(--ink-800);transition:color .2s var(--ease)}
.post-nav__item:hover .post-nav__label{color:var(--cyan)}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:140px;display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh)}
.side-card__title{
  font-size:15px;font-weight:700;color:var(--ink-900);display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.side-card__title i{color:var(--cyan);font-size:14px}
.toc-list li{margin:2px 0}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--text-2);padding:7px 12px;border-left:2px solid var(--line);
  border-radius:0 var(--r-sm) var(--r-sm) 0;transition:all .2s var(--ease);
}
.toc-list a:hover{color:var(--ink-800);background:#F7F6FD;border-left-color:var(--cyan);text-decoration:none}
.toc-list__sub a{padding-left:24px;font-size:13.5px}
.side-card__empty{font-size:13.5px;color:var(--text-3);line-height:1.7}
.side-links li+li{margin-top:10px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;font-weight:600;
  color:var(--ink-800);padding:10px 12px;border-radius:var(--r-sm);background:#FBFAFF;border:1px solid transparent;
  transition:all .22s var(--ease);
}
.side-links a:hover{text-decoration:none;background:var(--cyan-soft);border-color:rgba(23,191,208,.3);color:var(--cyan-deep)}
.side-links i{font-size:11px;color:var(--text-3)}
.side-cta{
  background:var(--grad);color:#fff;border:0;position:relative;overflow:hidden;
  box-shadow:0 16px 36px rgba(36,26,91,.24);
}
.side-cta h4{color:#fff;font-size:17px;margin-bottom:8px}
.side-cta p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.82);margin-bottom:16px}
.side-cta .btn{width:100%}

/* ---------- related ---------- */
.related{padding:64px 0 8px}
.section-head{margin-bottom:26px}
.section-head h2{font-size:30px;line-height:1.3}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}
.related__grid{margin-left:-12px;margin-right:-12px}
.related__grid>.column{padding-left:12px;padding-right:12px;margin-bottom:24px}
.news-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:20px;overflow:hidden;box-shadow:var(--sh);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:#CFC9F0;text-decoration:none}
.news-card__thumb{aspect-ratio:16/9;overflow:hidden;background:#EDEBF8}
.news-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .news-card__thumb img{transform:scale(1.03)}
.news-card__body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card__title{font-size:17px;font-weight:700;line-height:1.5;color:var(--text)}
.news-card__desc{font-size:14px;line-height:1.7;color:var(--text-2)}
.news-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3)}
.news-card__foot i{font-size:11px;color:var(--cyan)}

/* ---------- cta band ---------- */
.cta-wrap{padding:64px 0 8px}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--grad);color:#fff;
  padding:48px;display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:center;
  box-shadow:0 24px 50px rgba(36,26,91,.26);
}
.cta-band::before{
  content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-band>*{position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:30px;line-height:1.35}
.cta-band p{margin-top:12px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.85);max-width:560px}
.cta-points{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px 18px}
.cta-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.9)}
.cta-points i{color:var(--gold);font-size:13px}
.cta-band__actions{display:flex;flex-direction:column;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:#B9B6D6;margin-top:72px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}
.footer-brand .brand__name{color:#fff}
.footer-brand .brand__sub{color:rgba(255,255,255,.5)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#A5A2C4;max-width:340px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#B9B6D6}
.footer-col a:hover{color:var(--cyan);text-decoration:none}
.footer-contact li{font-size:14px;color:#A5A2C4;line-height:1.7}
.footer-bottom{
  margin-top:40px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:13px;color:#8F8CB5;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:1fr;gap:32px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 300px}
  .article-body{max-width:none}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .nav-search{display:none}
  .article-hero h1{font-size:34px}
  .cta-band{grid-template-columns:1fr;padding:38px 30px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .article-body{padding:30px 26px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-hero{padding:30px 0 26px}
  .article-hero h1{font-size:27px}
  .article-hero__lead{font-size:15.5px}
  .article-body{padding:24px 20px;border-radius:20px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .article-body p{font-size:15.5px}
  .article-body table{font-size:14px}
  .share-btn{margin-left:0}
  .post-nav{grid-template-columns:1fr}
  .post-nav__item--next{text-align:left;align-items:flex-start}
  .related{padding-top:48px}
  .section-head h2{font-size:24px}
  .cta-band{padding:30px 22px}
  .cta-band h2{font-size:23px}
  .cta-wrap{padding-top:48px}
  .related__grid{margin-left:0;margin-right:0}
  .related__grid>.column{padding-left:0;padding-right:0}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .brand__sub{display:none}
  .channel-bar__inner{height:56px}
  .channel-pill{height:38px}
  .article-side .side-card{flex:1 1 100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --ink-900:#16123A;
  --ink-800:#241A5B;
  --indigo-600:#3B2A8C;
  --cyan:#17BFD0;
  --cyan-soft:#E6F7FA;
  --orange:#FF7A45;
  --gold:#FFC24B;
  --bg:#F5F4FB;
  --card:#FFFFFF;
  --line:#E7E5F2;
  --text:#15132B;
  --text-2:#5A5776;
  --text-3:#8B88A6;
  --ok:#16A34A;
  --warn:#E4572E;
  --grad:linear-gradient(135deg,#241A5B 0%,#3B2A8C 52%,#17BFD0 100%);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh:0 8px 24px rgba(36,26,91,.08);
  --sh-h:0 16px 40px rgba(36,26,91,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:140px}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-800);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--cyan)}
p{margin:0 0 16px}
h1,h2,h3,h4,h5,h6{margin:0 0 14px;font-weight:700;line-height:1.25;color:var(--ink-900)}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1248px;margin:0 auto;padding:0 24px}
.row{max-width:none;margin-left:-12px;margin-right:-12px}
.row .column,.row .columns{padding-left:12px;padding-right:12px}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:1px solid transparent;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;text-align:center;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(36,26,91,.22)}
.btn--primary:hover,.btn--primary:focus{color:#fff;transform:translateY(-1px);box-shadow:0 14px 32px rgba(36,26,91,.3);filter:brightness(1.07)}
.btn--primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(36,26,91,.22)}
.btn--outline{background:#fff;color:var(--ink-800);border-color:#CFC9EC}
.btn--outline:hover{border-color:var(--indigo-600);color:var(--indigo-600);transform:translateY(-1px)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn--ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.75)}
.btn--sm{height:40px;padding:0 20px;font-size:14px}
.btn--block{width:100%}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:0 1px 0 var(--line)}
.topbar{border-bottom:1px solid var(--line);background:#fff}
.topbar__inner{height:68px;display:flex;align-items:center;gap:22px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);position:relative;flex:0 0 38px;
  box-shadow:0 8px 18px rgba(36,26,91,.28);
}
.brand__mark::before{
  content:"";position:absolute;left:50%;top:50%;width:14px;height:14px;transform:translate(-50%,-50%) rotate(45deg);
  background:radial-gradient(circle at 30% 30%,#fff,rgba(255,255,255,.35));border-radius:3px;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-size:19px;font-weight:700;color:var(--ink-900);letter-spacing:.2px}
.brand__sub{font-size:12px;color:var(--text-3);font-weight:400}
.nav-search{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 18px;border-radius:999px;background:#F3F2FA;border:1px solid transparent;
  transition:background-color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-search i{color:var(--text-3);font-size:14px}
.nav-search input{
  flex:1 1 auto;border:0;background:transparent;height:100%;font-size:14px;outline:none;color:var(--text);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search:focus-within{background:#fff;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(23,191,208,.16)}
.topbar__actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  color:var(--ink-800);cursor:pointer;align-items:center;justify-content:center;font-size:16px;
}
.nav-toggle:hover{border-color:#CFC9EC;color:var(--indigo-600)}
.channel-bar{background:#F3F1FB;border-bottom:1px solid var(--line)}
.channel-bar__inner{
  display:flex;align-items:center;gap:10px;padding-top:9px;padding-bottom:9px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:14px;font-weight:500;color:var(--text-2);
  white-space:nowrap;transition:all .22s var(--ease);
}
.channel-pill:hover{color:var(--ink-800);border-color:#C9C4E8;transform:translateY(-1px)}
.channel-pill.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 16px rgba(36,26,91,.22)}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;opacity:0;pointer-events:none;transition:opacity .25s var(--ease),visibility .25s var(--ease)}
.drawer.is-open{visibility:visible;opacity:1;pointer-events:auto}
.drawer__backdrop{position:absolute;inset:0;background:rgba(22,18,58,.55)}
.drawer__panel{
  position:absolute;left:0;top:0;bottom:0;width:min(320px,86vw);background:#fff;padding:22px;
  display:flex;flex-direction:column;gap:18px;transform:translateX(-100%);transition:transform .28s var(--ease);
  overflow-y:auto;box-shadow:0 20px 60px rgba(22,18,58,.3);
}
.drawer.is-open .drawer__panel{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between}
.drawer__title{font-size:17px;font-weight:700;color:var(--ink-900)}
.drawer__close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--text-2)}
.drawer__close:hover{color:var(--ink-800);border-color:#CFC9EC}
.nav-search--drawer{max-width:none;background:#F3F2FA}
.drawer__nav{display:flex;flex-direction:column;gap:6px}
.drawer__nav a{
  padding:13px 14px;border-radius:12px;font-size:15px;font-weight:500;color:var(--text-2);background:#F7F6FC;
}
.drawer__nav a.is-active{background:var(--grad);color:#fff}
.drawer__nav a:hover{color:var(--ink-800);background:var(--cyan-soft)}
.drawer__nav a.is-active:hover{color:#fff;background:var(--grad)}

/* ---------- 频道头 ---------- */
.page-hero{position:relative;padding:40px 0 60px;background:linear-gradient(180deg,#EDEBF8 0%,#F5F4FB 100%);overflow:hidden}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(36,26,91,.12) 1px,transparent 1px);
  background-size:26px 26px;opacity:.55;
}
.breadcrumb{
  position:relative;z-index:1;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);
  margin-bottom:26px;white-space:nowrap;overflow:hidden;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--indigo-600)}
.breadcrumb .sep{color:#C6C2DC}
.breadcrumb .current{color:var(--indigo-600);font-weight:600}
.page-hero__grid{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:var(--cyan-soft);color:#0E8E9C;font-size:13px;font-weight:600;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan)}
.page-hero h1{font-size:44px;line-height:1.25;margin:16px 0 18px;color:var(--ink-900)}
.page-hero__lead{font-size:17px;color:var(--text-2);max-width:640px;margin-bottom:24px}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}
.badge{
  display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 15px;border-radius:999px;
  background:rgba(255,255,255,.85);border:1px solid #D8D3F0;font-size:13px;font-weight:500;color:var(--text-2);
}
.badge i{color:var(--indigo-600);font-size:12px}
.page-hero__media{margin:0}
.page-hero__media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-h);border:1px solid rgba(255,255,255,.6);
}

/* ---------- 板块 ---------- */
.section{padding:88px 0}
.section--tight{padding-top:64px}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:34px;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--text-2);margin:0}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- 频道总览 ---------- */
.overview{display:grid;grid-template-columns:248px minmax(0,1fr);gap:32px;align-items:start}
.side-nav{
  position:sticky;top:142px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 18px;box-shadow:var(--sh);
}
.side-nav__title{
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--text-3);margin:0 0 14px;padding-left:12px;
}
.side-nav ul{list-style:none;display:flex;flex-direction:column;gap:4px}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;padding:11px 12px;border-radius:12px;
  font-size:15px;font-weight:500;color:var(--text-2);transition:all .2s var(--ease);
}
.side-nav a i{font-size:11px;opacity:.55}
.side-nav a:hover{background:var(--cyan-soft);color:var(--ink-800)}
.side-nav a.is-active{background:var(--grad);color:#fff;box-shadow:0 8px 18px rgba(36,26,91,.2)}
.side-nav a.is-active i{opacity:.9}

.feature-card{
  display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:#CFC9EC}
.feature-card__icon{
  width:50px;height:50px;border-radius:14px;background:var(--grad);color:#fff;display:grid;place-items:center;
  font-size:19px;margin-bottom:18px;box-shadow:0 8px 18px rgba(36,26,91,.2);
}
.feature-card h3{font-size:19px;margin-bottom:10px}
.feature-card p{font-size:15px;color:var(--text-2);margin:0 0 18px}
.feature-card__more{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--indigo-600);
}
.feature-card__more i{transition:transform .22s var(--ease);font-size:12px}
.feature-card:hover .feature-card__more i{transform:translateX(4px)}
.card-gap{margin-bottom:24px}

/* ---------- 深色数据区 ---------- */
.section--dark{
  position:relative;color:#fff;background-color:var(--ink-900);
  background-image:linear-gradient(rgba(22,18,58,.9),rgba(22,18,58,.96)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.section--dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:28px 28px;opacity:.5;
}
.section--dark .container{position:relative;z-index:1}
.section--dark h2{color:#fff}
.section--dark .section-head p{color:rgba(255,255,255,.72)}
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stat{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:26px 24px;
  transition:background-color .25s var(--ease),transform .25s var(--ease);
}
.stat:hover{background:rgba(255,255,255,.1);transform:translateY(-3px)}
.stat__num{font-size:34px;font-weight:700;line-height:1.1;color:var(--gold);margin-bottom:8px}
.stat__label{font-size:15px;font-weight:600;color:#fff;margin-bottom:6px}
.stat__desc{font-size:13px;color:rgba(255,255,255,.66);line-height:1.7;margin:0}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;list-style:none;counter-reset:flow}
.flow__item{position:relative;padding-top:34px;counter-increment:flow}
.flow__item::before{
  content:"";position:absolute;top:17px;left:0;right:-26px;height:1px;
  background:repeating-linear-gradient(90deg,#CFC9EC 0 8px,transparent 8px 16px);
}
.flow__item:last-child::before{right:0;background:none}
.flow__num{
  position:absolute;top:0;left:0;width:36px;height:36px;border-radius:12px;background:var(--grad);
  color:#fff;font-size:13px;font-weight:700;display:grid;place-items:center;letter-spacing:.4px;
  box-shadow:0 8px 18px rgba(36,26,91,.2);
}
.flow__item h3{font-size:18px;margin:0 0 8px;padding-top:6px}
.flow__item p{font-size:15px;color:var(--text-2);margin:0}

/* ---------- FAQ ---------- */
.faq{display:grid;grid-template-columns:300px minmax(0,1fr);gap:44px;align-items:start}
.faq__intro h2{font-size:32px;margin-bottom:14px}
.faq__intro p{font-size:15px;color:var(--text-2);margin-bottom:22px}
.faq__list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;
  padding:22px 26px;background:transparent;border:0;cursor:pointer;font-size:16px;font-weight:600;color:var(--ink-900);
  transition:background-color .2s var(--ease);
}
.faq-item__q:hover{background:#FAF9FE}
.faq-item.is-open .faq-item__q{color:var(--indigo-600)}
.faq-item__icon{position:relative;width:24px;height:24px;flex:0 0 24px;border-radius:999px;border:1px solid var(--line);background:#fff}
.faq-item__icon::before,.faq-item__icon::after{content:"";position:absolute;background:var(--indigo-600);border-radius:2px}
.faq-item__icon::before{left:6px;right:6px;top:11px;height:2px}
.faq-item__icon::after{top:6px;bottom:6px;left:11px;width:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.faq-item.is-open .faq-item__icon::after{transform:scaleY(0);opacity:0}
.faq-item__a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-item__a{max-height:420px}
.faq-item__a p{margin:0;padding:0 26px 24px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:28px;padding:48px;
  background:var(--grad);color:#fff;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  box-shadow:0 24px 60px rgba(36,26,91,.28);
}
.cta-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.22) 1px,transparent 1px);
  background-size:24px 24px;opacity:.35;
}
.cta-card > *{position:relative;z-index:1}
.cta-card h2{color:#fff;font-size:32px;margin-bottom:16px}
.cta-card p{color:rgba(255,255,255,.82);font-size:15px;margin-bottom:22px}
.cta-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.94)}
.cta-list i{color:var(--gold);font-size:14px;margin-top:7px}
.cta-form{background:#fff;border-radius:20px;padding:26px;box-shadow:0 18px 44px rgba(22,18,58,.24)}
.cta-form__field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.cta-form__field label{font-size:13px;font-weight:600;color:var(--text-2)}
.cta-form input[type="text"],.cta-form select{
  width:100%;height:46px;margin:0;border-radius:var(--r-sm);border:1px solid #D8D3F0;background:#fff;
  padding:0 16px;font-size:15px;color:var(--text);outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.cta-form select{
  -webkit-appearance:none;appearance:none;padding-right:38px;
  background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' stroke='%235A5776' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:12px 8px;
}
.cta-form input[type="text"]:focus,.cta-form select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(23,191,208,.18);background:#FBFEFF}
.cta-form__note{font-size:12px;color:var(--text-3);margin:12px 0 0;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:38px}
.footer-brand .brand__name{color:#fff}
.footer-brand .brand__sub{color:rgba(255,255,255,.5)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:18px 0 0;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:var(--cyan)}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.72);line-height:1.8}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.5);margin:0}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .overview{grid-template-columns:220px minmax(0,1fr);gap:26px}
  .faq{grid-template-columns:260px minmax(0,1fr);gap:32px}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media screen and (max-width:991px){
  .nav-search{display:none}
  .nav-search--drawer{display:flex}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0}
  .page-hero{padding:30px 0 48px}
  .page-hero__grid{grid-template-columns:1fr;gap:30px}
  .page-hero h1{font-size:34px}
  .section-head h2{font-size:28px}
  .overview{grid-template-columns:1fr}
  .side-nav{position:static}
  .side-nav ul{flex-direction:row;flex-wrap:wrap;gap:8px}
  .side-nav__title{padding-left:0}
  .side-nav a{background:#F7F6FC;border:1px solid var(--line)}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .flow__item::before{right:-22px}
  .flow__item:nth-child(2n)::before{background:none}
  .faq{grid-template-columns:1fr;gap:26px}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
  .container{padding:0 16px}
  .topbar__inner{height:62px;gap:14px}
  .brand__name{font-size:17px}
  .brand__sub{display:none}
  .section{padding:52px 0}
  .page-hero h1{font-size:30px}
  .section-head h2{font-size:24px}
  .section-head{margin-bottom:32px}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .stat{padding:20px 18px}
  .stat__num{font-size:28px}
  .flow{grid-template-columns:1fr}
  .flow__item::before{display:none}
  .cta-card{padding:26px;border-radius:22px}
  .cta-card h2{font-size:24px}
  .cta-form{padding:20px}
  .faq-item__q{padding:18px 18px;font-size:15px}
  .faq-item__a p{padding:0 18px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .feature-card{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --indigo:#241A5B;
  --indigo-deep:#16123A;
  --indigo-mid:#3B2A8C;
  --cyan:#17BFD0;
  --cyan-soft:#E6F7FA;
  --orange:#FF7A45;
  --gold:#FFC24B;
  --bg:#F5F4FB;
  --card:#FFFFFF;
  --line:#E7E5F2;
  --text:#15132B;
  --text-2:#5A5776;
  --text-3:#8B88A6;
  --ok:#16A34A;
  --warn:#E4572E;
  --grad:linear-gradient(135deg,#241A5B 0%,#3B2A8C 55%,#17BFD0 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-pill:999px;
  --sh:0 8px 24px rgba(36,26,91,.08);
  --sh-hover:0 16px 40px rgba(36,26,91,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec-y:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-padding-top:140px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--indigo);text-decoration:none;transition:color .2s var(--ease);}
a:hover,a:focus{color:var(--cyan);}
h1,h2,h3,h4{font-family:inherit;color:var(--text);line-height:1.25;letter-spacing:0;margin:0;}
h1{font-size:44px;font-weight:700;}
h2{font-size:34px;font-weight:700;}
h3{font-size:22px;font-weight:700;}
h4{font-size:18px;font-weight:600;}
p{margin:0 0 1.1em;color:var(--text-2);}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-y) 0;}
.section--tint{background:#FFFFFF;}
.section--soft{background:linear-gradient(180deg,#F5F4FB 0%,#EFEDFA 100%);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--cyan);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}
.sec-title{margin-bottom:16px;}
.sec-desc{font-size:16px;color:var(--text-2);max-width:42ch;}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border:1px solid transparent;
  border-radius:var(--r-pill);font-size:15px;font-weight:600;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(36,26,91,.22);}
.btn--primary:hover,.btn--primary:focus{color:#fff;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 14px 30px rgba(36,26,91,.28);}
.btn--primary:active{transform:translateY(1px);}
.btn--outline{background:#fff;color:var(--indigo);border-color:rgba(36,26,91,.22);}
.btn--outline:hover,.btn--outline:focus{color:var(--indigo);border-color:var(--indigo);background:#F7F6FE;transform:translateY(-1px);}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn--ghost:hover,.btn--ghost:focus{color:#fff;border-color:#fff;background:rgba(255,255,255,.1);transform:translateY(-1px);}
.btn--sm{min-height:38px;padding:0 18px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--indigo);}
.text-link i{transition:transform .25s var(--ease);font-size:12px;}
.text-link:hover{color:var(--cyan);}
.text-link:hover i{transform:translateX(4px);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(36,26,91,.08);}
.topbar{background:#fff;}
.topbar__inner{
  display:flex;align-items:center;gap:20px;
  min-height:68px;height:68px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--indigo);}
.brand:hover{color:var(--indigo);}
.brand__mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  position:relative;flex:0 0 auto;
  box-shadow:0 6px 16px rgba(36,26,91,.24);
}
.brand__mark::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 68% 30%, rgba(255,255,255,.95) 0 1.8px, transparent 2px),
    radial-gradient(circle at 32% 62%, rgba(255,194,75,.95) 0 1.6px, transparent 2px),
    radial-gradient(circle at 72% 72%, rgba(255,255,255,.7) 0 1.2px, transparent 1.6px);
}
.brand__mark::after{
  content:"\f1e3";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.92);font-size:15px;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__name{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand__sub{font-size:12px;color:var(--text-3);font-weight:400;}

.site-search{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:8px;
  background:#F5F4FB;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 8px 0 16px;height:44px;transition:border-color .25s var(--ease),background .25s var(--ease);
}
.site-search:focus-within{border-color:var(--cyan);background:#fff;box-shadow:0 0 0 4px rgba(23,191,208,.12);}
.site-search i{color:var(--text-3);font-size:14px;}
.site-search input{
  flex:1;border:0;background:transparent;height:42px;color:var(--text);
  outline:none;font-size:14px;
}
.site-search input::placeholder{color:var(--text-3);}
.site-search button{
  border:0;background:var(--indigo);color:#fff;height:32px;padding:0 16px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;
}
.site-search button:hover{background:var(--indigo-mid);}
.top-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--indigo);font-size:17px;
}
.nav-toggle:hover{border-color:var(--indigo);}

.channel-bar{background:#FBFAFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.channel-bar__inner{
  display:flex;align-items:center;gap:8px;height:54px;
  overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.channel-bar__inner::-webkit-scrollbar{display:none;}
.channel-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:34px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--text-2);background:#F2F1FA;
  white-space:nowrap;transition:all .25s var(--ease);
}
.channel-pill:hover{background:var(--cyan-soft);color:var(--indigo);}
.channel-pill.is-active{background:var(--grad);color:#fff;box-shadow:0 6px 16px rgba(36,26,91,.2);}

/* 移动抽屉 */
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:min(84vw,340px);
  background:#fff;z-index:200;transform:translateX(-102%);
  transition:transform .3s var(--ease);padding:20px;overflow-y:auto;
  box-shadow:0 0 40px rgba(22,18,58,.25);
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer__close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--indigo);font-size:16px;}
.drawer__nav{display:flex;flex-direction:column;gap:8px;margin-top:18px;}
.drawer__link{
  padding:12px 16px;border-radius:12px;background:#F5F4FB;color:var(--text);
  font-size:15px;font-weight:600;
}
.drawer__link.is-active{background:var(--grad);color:#fff;}
.drawer__link:hover{color:var(--indigo);background:var(--cyan-soft);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,18,58,.45);z-index:190;
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ============ 面包屑 ============ */
.breadcrumb{padding:16px 0 0;font-size:13px;color:var(--text-3);}
.breadcrumb ol{display:flex;flex-wrap:nowrap;align-items:center;gap:8px;overflow:hidden;}
.breadcrumb li{white-space:nowrap;}
.breadcrumb li:not(:last-child)::after{content:"›";margin-left:8px;color:var(--text-3);}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb li:last-child{color:var(--indigo);font-weight:600;overflow:hidden;text-overflow:ellipsis;}

/* ============ 频道头 ============ */
.page-hero{
  position:relative;
  background:
    radial-gradient(circle at 88% 18%, rgba(23,191,208,.18) 0 1px, transparent 2px) 0 0/26px 26px,
    linear-gradient(135deg,#F1EFFB 0%,#E9F6F8 100%);
  border-bottom:1px solid var(--line);
  padding:40px 0 64px;
  overflow:hidden;
}
.page-hero__grid{display:flex;align-items:center;gap:48px;}
.page-hero__body{flex:1 1 58%;min-width:0;}
.page-hero h1{font-size:44px;margin-bottom:18px;color:var(--indigo);}
.page-hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.page-hero__lead{font-size:17px;line-height:1.9;color:var(--text-2);max-width:52ch;margin-bottom:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;}
.badge{
  display:inline-flex;align-items:baseline;gap:8px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);border:1px solid rgba(36,26,91,.12);
  backdrop-filter:blur(4px);
}
.badge b{font-size:18px;font-weight:700;color:var(--orange);line-height:1.2;}
.badge span{font-size:12.5px;color:var(--text-2);}
.hero-figure{
  flex:1 1 38%;min-width:0;position:relative;
}
.hero-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.8);
  box-shadow:0 18px 44px rgba(36,26,91,.16);
}
.hero-figure__tag{
  position:absolute;left:18px;bottom:-16px;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--indigo);
  box-shadow:var(--sh);
}
.hero-figure__tag i{color:var(--cyan);}

/* ============ 指标带 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:24px 22px;box-shadow:var(--sh);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(23,191,208,.45);}
.metric-card__num{font-size:30px;font-weight:700;color:var(--indigo);line-height:1.2;}
.metric-card__num em{font-style:normal;color:var(--orange);font-size:20px;margin-left:2px;}
.metric-card__label{font-size:15px;font-weight:600;color:var(--text);margin-top:6px;}
.metric-card__note{font-size:13px;color:var(--text-3);line-height:1.7;}

/* ============ Z 字图文流 ============ */
.zflow{display:flex;flex-direction:column;gap:72px;}
.zrow{display:flex;align-items:center;gap:56px;}
.zrow__media{flex:1 1 46%;min-width:0;}
.zrow__media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);
  border:1px solid var(--line);box-shadow:var(--sh);
}
.zrow__body{flex:1 1 54%;min-width:0;}
.zrow__kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--cyan);
  background:var(--cyan-soft);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:16px;
}
.zrow__body h3{margin-bottom:14px;}
.zrow__body p{margin-bottom:18px;}
.zrow--flip .zrow__media{order:2;}
.zrow--flip .zrow__body{order:1;}

.check-list{display:flex;flex-direction:column;gap:10px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--text-2);line-height:1.75;
}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--cyan);font-size:12px;margin-top:7px;flex:0 0 auto;
}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(36,26,91,.16);background:#fff;
  font-size:13px;font-weight:600;color:var(--indigo);
}
.pill i{color:var(--orange);font-size:11px;}

/* ============ 联赛覆盖 ============ */
.league-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.league-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.league-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(23,191,208,.45);}
.league-card__head{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.league-card__icon{
  width:44px;height:44px;border-radius:14px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;
  flex:0 0 auto;
}
.league-card__head h3{font-size:19px;}
.league-card__head span{display:block;font-size:13px;color:var(--text-3);font-weight:400;}
.chip-wall{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.chip{
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(36,26,91,.16);background:#FBFAFF;
  font-size:13px;font-weight:600;color:var(--text-2);
}
.chip.is-key{border-color:rgba(255,122,69,.4);color:var(--warn);background:rgba(255,122,69,.07);}

/* ============ 使用场景（非对称） ============ */
.scene{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch;}
.scene__main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--indigo-deep);color:#fff;min-height:380px;
  display:flex;flex-direction:column;justify-content:flex-end;
  border:1px solid rgba(255,255,255,.1);
}
.scene__main img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:.42;
}
.scene__main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(22,18,58,.25) 0%,rgba(22,18,58,.92) 76%);
}
.scene__main-body{position:relative;z-index:2;padding:36px;}
.scene__main-body h3{color:#fff;font-size:24px;margin-bottom:12px;}
.scene__main-body p{color:rgba(255,255,255,.8);font-size:15px;margin-bottom:18px;}
.scene__main-body .badge{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.25);}
.scene__main-body .badge span{color:rgba(255,255,255,.8);}
.scene__side{display:flex;flex-direction:column;gap:24px;}
.scene-card{
  flex:1;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh);display:flex;flex-direction:column;gap:12px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(23,191,208,.45);}
.scene-card__top{display:flex;align-items:center;gap:12px;}
.scene-card__top img{width:48px;height:48px;border-radius:14px;object-fit:cover;flex:0 0 auto;}
.scene-card h4{margin:0;}
.scene-card p{font-size:14.5px;line-height:1.8;margin:0;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:0.8fr 1.6fr;gap:48px;align-items:start;}
.faq-aside h2{margin-bottom:16px;}
.faq-aside p{font-size:15px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 48px 22px 20px;font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\2b";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-size:19px;font-weight:400;color:var(--text-3);line-height:1;
  transition:transform .25s var(--ease),color .25s var(--ease);
}
.faq-item summary:hover{color:var(--indigo);}
.faq-item[open] summary{color:var(--indigo);}
.faq-item[open] summary::after{content:"\2212";color:var(--cyan);}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:3px;
  background:var(--grad);opacity:0;transition:opacity .25s var(--ease);
}
.faq-item[open] summary::before{opacity:1;}
.faq-answer{padding:0 48px 24px 20px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ============ CTA ============ */
.cta-band{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background-image:linear-gradient(135deg,rgba(22,18,58,.94) 0%,rgba(36,26,91,.9) 48%,rgba(23,191,208,.78) 100%),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  padding:56px;color:#fff;
  display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:center;
  border:1px solid rgba(255,255,255,.12);
}
.cta-band h2{color:#fff;font-size:32px;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;margin-bottom:22px;}
.cta-list{display:flex;flex-direction:column;gap:12px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.88);}
.cta-list li i{color:var(--gold);margin-top:6px;font-size:12px;flex:0 0 auto;}
.form-card{
  background:rgba(255,255,255,.97);border-radius:var(--r-md);
  padding:28px;box-shadow:0 24px 60px rgba(0,0,0,.22);
}
.form-card h3{font-size:19px;margin-bottom:6px;color:var(--indigo);}
.form-card .form-tip{font-size:13px;color:var(--text-3);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text);margin-bottom:8px;}
.field input,.field select{
  width:100%;height:48px;padding:0 16px;border-radius:12px;
  border:1px solid var(--line);background:#FBFAFF;color:var(--text);
  outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field input:focus,.field select:focus{
  border-color:var(--cyan);background:#fff;box-shadow:0 0 0 4px rgba(23,191,208,.14);
}
.form-card .btn{width:100%;}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:14px;text-align:center;}
.form-ok{display:none;margin-top:14px;font-size:13.5px;color:var(--ok);text-align:center;font-weight:600;}
.form-ok.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--indigo-deep);color:rgba(255,255,255,.72);padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{color:#fff;margin-bottom:18px;}
.footer-brand .brand__name{color:#fff;}
.footer-brand .brand__sub{color:rgba(255,255,255,.55);}
.footer-brand p{color:rgba(255,255,255,.66);font-size:14px;line-height:1.9;max-width:36ch;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:var(--cyan);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66);line-height:1.7;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{color:rgba(255,255,255,.5);font-size:13px;margin:0;}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  :root{--sec-y:76px;}
  h1{font-size:40px;}
  h2{font-size:31px;}
  .page-hero h1{font-size:40px;}
  .cta-band{padding:44px;gap:40px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:991px){
  :root{--sec-y:64px;}
  h1{font-size:36px;}
  h2{font-size:28px;}
  .page-hero h1{font-size:36px;}
  .page-hero__grid{flex-direction:column;gap:32px;}
  .hero-figure{width:100%;}
  .zflow{gap:56px;}
  .zrow{flex-direction:column;gap:28px;}
  .zrow--flip .zrow__media{order:0;}
  .zrow--flip .zrow__body{order:0;}
  .zrow__media,.zrow__body{width:100%;}
  .scene{grid-template-columns:1fr;}
  .scene__main{min-height:320px;}
  .scene__side{flex-direction:row;}
  .scene-card{flex:1;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:767px){
  .container{padding:0 18px;}
  :root{--sec-y:56px;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  h3{font-size:20px;}
  .page-hero{padding:28px 0 48px;}
  .page-hero h1{font-size:32px;}
  .page-hero__lead{font-size:16px;}
  .site-search{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .topbar__inner{gap:12px;height:64px;}
  .brand__sub{display:none;}
  .metric-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .metric-card{padding:20px 18px;}
  .metric-card__num{font-size:25px;}
  .league-grid{grid-template-columns:1fr;}
  .scene__side{flex-direction:column;}
  .faq-item summary{padding:18px 44px 18px 16px;font-size:15.5px;}
  .faq-answer{padding:0 30px 20px 16px;}
  .cta-band{padding:28px 22px;border-radius:var(--r-md);}
  .cta-band h2{font-size:24px;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .section-head{margin-bottom:32px;}
}
@media screen and (max-width:520px){
  .metric-grid{grid-template-columns:1fr;}
  .hero-badges{gap:8px;}
  .badge{padding:7px 13px;}
  .badge b{font-size:16px;}
  .btn{padding:0 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category3 */
:root{
  --brand:#241A5B;
  --brand-2:#3B2A8C;
  --dark:#16123A;
  --cyan:#17BFD0;
  --cyan-ink:#0E8C99;
  --cyan-soft:#E6F7FA;
  --orange:#FF7A45;
  --gold:#FFC24B;
  --bg:#F5F4FB;
  --card:#FFFFFF;
  --line:#E7E5F2;
  --line-2:#D8D5EC;
  --ink:#15132B;
  --ink-2:#5A5776;
  --ink-3:#8B88A6;
  --ok:#16A34A;
  --warn:#E4572E;
  --grad:linear-gradient(135deg,#241A5B 0%,#3B2A8C 56%,#17BFD0 100%);
  --grad-soft:linear-gradient(160deg,#EFEDFB 0%,#E6F7FA 100%);
  --shadow:0 8px 24px rgba(36,26,91,.08);
  --shadow-hover:0 16px 40px rgba(36,26,91,.14);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --sect:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:132px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-2);text-decoration:none;transition:color .2s var(--ease),text-decoration-color .2s var(--ease);}
a:hover{color:var(--cyan-ink);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4,h5{font-family:inherit;color:var(--ink);margin:0 0 .6em;line-height:1.25;font-weight:700;letter-spacing:0;}
h1{font-size:44px;}
h2{font-size:34px;}
h3{font-size:22px;}
h4{font-size:18px;}
p{margin:0 0 1.1em;color:var(--ink-2);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.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;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(36,26,91,.22);}
.btn--primary:hover{color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 14px 30px rgba(36,26,91,.28);filter:brightness(1.06);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(36,26,91,.2);}
.btn--outline{background:#fff;color:var(--brand);border-color:var(--line-2);}
.btn--outline:hover{color:var(--brand);text-decoration:none;border-color:var(--cyan);transform:translateY(-1px);box-shadow:var(--shadow);}
.btn--ghost{background:rgba(255,255,255,.04);color:#fff;border-color:rgba(255,255,255,.4);}
.btn--ghost:hover{color:#fff;text-decoration:none;background:rgba(255,255,255,.12);transform:translateY(-1px);}
.btn--text{height:auto;padding:0;color:var(--brand-2);font-weight:600;}
.btn--text:hover{text-decoration:none;color:var(--cyan-ink);}
.btn--text i{transition:transform .25s var(--ease);}
.btn--text:hover i{transform:translateX(4px);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:0 1px 0 var(--line),0 10px 28px rgba(36,26,91,.06);}
.topbar__inner{display:flex;align-items:center;gap:26px;height:68px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand:hover{text-decoration:none;}
.brand__mark{
  position:relative;width:38px;height:38px;border-radius:12px;background:var(--grad);flex-shrink:0;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.2),0 6px 16px rgba(36,26,91,.22);
}
.brand__mark::before{
  content:"";position:absolute;left:50%;top:50%;width:11px;height:11px;border-radius:3px;
  transform:translate(-50%,-50%) rotate(45deg);background:#fff;
  box-shadow:0 0 14px rgba(255,255,255,.75);
}
.brand__mark::after{
  content:"";position:absolute;right:6px;top:6px;width:5px;height:5px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 8px rgba(255,194,75,.9);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__name{font-size:19px;font-weight:700;color:var(--ink);}
.brand__sub{font-size:12px;color:var(--ink-3);font-weight:400;letter-spacing:.4px;}
.topbar__search{position:relative;flex:1;max-width:400px;margin-left:auto;}
.topbar__search input[type="search"]{
  width:100%;height:44px;border-radius:var(--pill);border:1px solid var(--line);
  background:#F7F6FC;padding:0 48px 0 20px;color:var(--ink);outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.topbar__search input[type="search"]::placeholder{color:var(--ink-3);}
.topbar__search input[type="search"]:focus{border-color:var(--cyan);background:#fff;box-shadow:0 0 0 4px rgba(23,191,208,.14);}
.search-btn{
  position:absolute;right:5px;top:50%;transform:translateY(-50%);
  width:36px;height:36px;border-radius:50%;border:0;background:transparent;color:var(--ink-3);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;transition:color .2s var(--ease),background-color .2s var(--ease);
}
.search-btn:hover{color:var(--brand);background:#EFEDFB;}
.topbar__actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;color:var(--brand);cursor:pointer;align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{background:#F7F6FC;}

.channel-bar{background:#FBFBFE;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.channel-bar__inner{
  display:flex;align-items:center;gap:10px;height:54px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-bar__inner::-webkit-scrollbar{display:none;}
.channel-pill{
  flex:0 0 auto;height:34px;display:inline-flex;align-items:center;padding:0 16px;border-radius:var(--pill);
  font-size:14px;font-weight:600;color:var(--ink-2);background:#fff;border:1px solid var(--line);
  transition:all .25s var(--ease);white-space:nowrap;
}
.channel-pill:hover{color:var(--brand);border-color:var(--line-2);text-decoration:none;transform:translateY(-1px);}
.channel-pill.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 16px rgba(36,26,91,.2);}
.channel-pill.is-active:hover{color:#fff;}

.mobile-drawer{
  position:fixed;inset:0 0 0 auto;width:min(88vw,340px);background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .3s var(--ease);padding:22px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(36,26,91,.18);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-mask{position:fixed;inset:0;background:rgba(22,18,58,.5);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s;z-index:80;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;}
.drawer-link{
  display:block;padding:13px 16px;border-radius:var(--r-sm);color:var(--ink-2);font-weight:600;font-size:15px;
  margin-bottom:6px;border:1px solid transparent;
}
.drawer-link:hover{background:#F7F6FC;text-decoration:none;color:var(--brand);}
.drawer-link.is-active{background:var(--grad);color:#fff;}
.drawer-link.is-active:hover{color:#fff;}

/* ---------- 面包屑 ---------- */
.breadcrumb{background:#fff;border-bottom:1px solid var(--line);}
.breadcrumb__inner{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-3);height:48px;overflow:hidden;white-space:nowrap;}
.breadcrumb__inner a{color:var(--ink-3);}
.breadcrumb__inner a:hover{color:var(--brand);text-decoration:none;}
.breadcrumb__inner .sep{color:var(--line-2);}
.breadcrumb__inner .current{color:var(--brand);font-weight:600;}

/* ---------- 频道头 ---------- */
.channel-hero{background:var(--grad-soft);border-bottom:1px solid var(--line);position:relative;overflow:hidden;}
.channel-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(36,26,91,.16) 1px,transparent 1px);
  background-size:22px 22px;
  mask-image:linear-gradient(120deg,rgba(0,0,0,.55),transparent 62%);
  -webkit-mask-image:linear-gradient(120deg,rgba(0,0,0,.55),transparent 62%);
}
.channel-hero__inner{position:relative;display:flex;gap:48px;align-items:center;padding:56px 0 52px;}
.channel-hero__text{flex:1 1 58%;max-width:620px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--pill);
  background:rgba(255,255,255,.75);border:1px solid var(--line-2);color:var(--brand-2);
  font-size:13px;font-weight:600;margin-bottom:16px;
}
.eyebrow i{color:var(--orange);}
.channel-hero h1{font-size:44px;margin-bottom:16px;}
.channel-hero p{font-size:16.5px;max-width:610px;margin-bottom:22px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--pill);
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-2);font-weight:600;
}
.meta-chip i{color:var(--cyan-ink);}
.channel-hero__visual{flex:0 0 360px;position:relative;}
.channel-hero__visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:0 20px 44px rgba(36,26,91,.18);border:1px solid rgba(255,255,255,.7);
}
.visual-tag{
  position:absolute;left:-14px;bottom:24px;background:#fff;border-radius:var(--r-md);padding:12px 18px;
  box-shadow:var(--shadow);border:1px solid var(--line);display:flex;align-items:center;gap:10px;
}
.visual-tag b{font-size:20px;color:var(--brand);font-weight:700;}
.visual-tag span{font-size:12.5px;color:var(--ink-3);line-height:1.3;}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sect) 0;}
.section--tight{padding-top:0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{margin-bottom:14px;}
.section-lede{font-size:16.5px;color:var(--ink-2);margin:0;}
.section-head--between{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none;}
.section-head--between .section-head__text{max-width:680px;}
.bg-white{background:#fff;}
.bg-soft{background:var(--bg);}
.divider-dot{color:var(--gold);}

/* ---------- 表格 ---------- */
.table-scroll{overflow-x:auto;border-radius:var(--r-lg);box-shadow:var(--shadow);background:#fff;}
.spec-table{width:100%;min-width:840px;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff;}
.spec-table thead th{
  background:#F1EFFB;color:var(--brand);font-size:13.5px;font-weight:600;text-align:left;
  padding:16px 20px;border-bottom:1px solid var(--line-2);white-space:nowrap;letter-spacing:.3px;
}
.spec-table tbody td{
  padding:17px 20px;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--ink-2);vertical-align:top;line-height:1.7;
}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table tbody tr{transition:background-color .2s var(--ease);}
.spec-table tbody tr:hover{background:#FAF9FF;}
.spec-table td strong{display:block;color:var(--ink);font-weight:600;font-size:15px;margin-bottom:2px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--pill);
  font-size:12.5px;font-weight:600;background:var(--cyan-soft);color:var(--cyan-ink);border:1px solid rgba(23,191,208,.22);
}
.tag--gold{background:rgba(255,194,75,.16);color:#9A6A00;border-color:rgba(255,194,75,.4);}
.tag--purple{background:#EFEDFB;color:var(--brand-2);border-color:var(--line-2);}

/* ---------- 对比卡 ---------- */
.compare-grid > .cell{display:flex;}
.compare-card{
  display:flex;flex-direction:column;width:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:32px;box-shadow:var(--shadow);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(23,191,208,.4);}
.compare-card--deep{border-color:rgba(23,191,208,.35);}
.compare-card__head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:8px;}
.compare-card h3{margin:0;font-size:22px;}
.compare-card__price{font-size:13px;color:var(--ink-3);margin-bottom:22px;}
.compare-list{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;flex:1;}
.compare-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.7;}
.compare-list li i{color:var(--cyan);font-size:14px;margin-top:7px;flex-shrink:0;}
.compare-list li.is-muted{color:var(--ink-3);}
.compare-list li.is-muted i{color:var(--line-2);}
.icon-badge{
  width:44px;height:44px;border-radius:14px;background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0;
  box-shadow:0 8px 18px rgba(36,26,91,.2);
}
.icon-badge--soft{background:var(--cyan-soft);color:var(--cyan-ink);box-shadow:none;}

/* ---------- 深色覆盖区 ---------- */
.section--dark{background:var(--dark);color:#fff;position:relative;overflow:hidden;}
.section--dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.28) 1px,transparent 1px);
  background-size:26px 26px;opacity:.09;
}
.section--dark h2,.section--dark h3{color:#fff;}
.section--dark p{color:rgba(255,255,255,.72);}
.section--dark .container{position:relative;}
.badge-wall{display:flex;flex-wrap:wrap;gap:14px;margin:34px 0 30px;}
.badge-pill{
  display:inline-flex;align-items:baseline;gap:10px;padding:14px 24px;border-radius:var(--pill);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.05);
  transition:border-color .25s var(--ease),background-color .25s var(--ease),transform .25s var(--ease);
}
.badge-pill:hover{border-color:rgba(23,191,208,.6);background:rgba(23,191,208,.1);transform:translateY(-2px);}
.badge-pill b{font-size:21px;font-weight:700;color:var(--gold);letter-spacing:.5px;}
.badge-pill span{font-size:13px;color:rgba(255,255,255,.76);}
.cover-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px;}
.cover-note{border-left:2px solid rgba(23,191,208,.6);padding-left:16px;}
.cover-note h4{color:#fff;font-size:16px;margin-bottom:6px;}
.cover-note p{font-size:14px;margin:0;line-height:1.8;}
.dark-footnote{font-size:13px;color:rgba(255,255,255,.55);margin:26px 0 0;}

/* ---------- 数据使用方式列表 ---------- */
.usage-list{display:flex;flex-direction:column;gap:14px;}
.usage-row{
  display:flex;align-items:center;gap:24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px 26px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.usage-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(23,191,208,.4);}
.usage-num{
  flex:0 0 46px;height:46px;border-radius:14px;background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  box-shadow:0 8px 18px rgba(36,26,91,.2);
}
.usage-body{flex:1;min-width:0;}
.usage-body h3{font-size:18px;margin:0 0 4px;}
.usage-body p{margin:0;font-size:14.5px;}
.usage-tags{display:flex;gap:8px;flex-wrap:wrap;flex-shrink:0;}

/* ---------- FAQ ---------- */
.faq-layout{display:flex;gap:56px;align-items:flex-start;}
.faq-aside{flex:0 0 300px;position:sticky;top:150px;}
.faq-aside h2{font-size:30px;margin-bottom:12px;}
.faq-aside p{font-size:15px;margin-bottom:18px;}
.faq-list{flex:1;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item:last-child{border-bottom:0;}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad);
  transform:scaleY(0);transform-origin:top;transition:transform .3s var(--ease);
}
.faq-item[open]::before{transform:scaleY(1);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;
  padding:20px 28px;font-size:16px;font-weight:600;color:var(--ink);list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-2);}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:600;color:var(--cyan-ink);flex-shrink:0;line-height:1;
  transition:transform .25s var(--ease);
}
.faq-item[open] summary::after{content:"–";}
.faq-body{padding:0 28px 22px;font-size:15px;color:var(--ink-2);line-height:1.9;}
.faq-body p{margin:0;font-size:15px;}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 var(--sect);}
.cta-card{
  background:var(--grad);border-radius:var(--r-lg);padding:52px;color:#fff;position:relative;overflow:hidden;
  display:flex;gap:56px;align-items:center;box-shadow:0 24px 56px rgba(36,26,91,.28);
}
.cta-card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:24px 24px;opacity:.08;
}
.cta-card__text{flex:1 1 50%;position:relative;}
.cta-card__text h2{color:#fff;font-size:32px;margin-bottom:14px;}
.cta-card__text p{color:rgba(255,255,255,.78);font-size:15.5px;margin-bottom:22px;}
.cta-points{display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:rgba(255,255,255,.85);}
.cta-points i{color:var(--gold);}
.cta-form-card{
  flex:0 0 400px;background:#fff;border-radius:var(--r-md);padding:28px;position:relative;
  box-shadow:0 18px 40px rgba(22,18,58,.24);
}
.cta-form{display:flex;flex-direction:column;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13px;font-weight:600;color:var(--ink-2);}
.field select,.field input{
  width:100%;height:48px;border-radius:var(--r-sm);border:1px solid var(--line);background:#FBFBFE;
  padding:0 16px;color:var(--ink);outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.field select:focus,.field input:focus{border-color:var(--cyan);background:#fff;box-shadow:0 0 0 4px rgba(23,191,208,.16);}
.form-note{margin:0;font-size:13px;color:var(--ok);}
.form-hint{margin:0;font-size:12.5px;color:var(--ink-3);line-height:1.6;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 28px;position:relative;}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.3) 1px,transparent 1px);
  background-size:30px 30px;opacity:.06;
}
.site-footer .container{position:relative;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand__name{color:#fff;}
.footer-brand .brand__sub{color:rgba(255,255,255,.5);}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.62);line-height:1.85;margin:0;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(255,255,255,.68);font-size:14px;}
.footer-col a:hover{color:var(--cyan);text-decoration:none;}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.62);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:rgba(255,255,255,.5);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  h1{font-size:40px;}
  .channel-hero h1{font-size:40px;}
  .channel-hero__visual{flex:0 0 300px;}
  .cta-card{padding:44px;gap:40px;}
  .cta-form-card{flex:0 0 360px;}
}
@media screen and (max-width:991px){
  :root{--sect:64px;}
  h1{font-size:36px;}
  h2{font-size:28px;}
  .channel-hero__inner{flex-direction:column;align-items:flex-start;gap:32px;padding:44px 0 44px;}
  .channel-hero__text{max-width:none;}
  .channel-hero__visual{flex:none;width:100%;max-width:520px;}
  .cover-notes{grid-template-columns:1fr;gap:18px;}
  .faq-layout{flex-direction:column;gap:28px;}
  .faq-aside{position:static;flex:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-card{flex-direction:column;align-items:stretch;padding:36px;}
  .cta-form-card{flex:none;width:100%;}
}
@media screen and (max-width:767px){
  :root{--sect:56px;}
  .container{padding:0 16px;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  h3{font-size:20px;}
  .channel-hero h1{font-size:32px;}
  .channel-hero p{font-size:15.5px;}
  .topbar__inner{height:62px;gap:12px;}
  .brand__sub{display:none;}
  .topbar__search{display:none;}
  .nav-toggle{display:inline-flex;}
  .topbar__actions .btn--primary{display:none;}
  .section-head--between{flex-direction:column;align-items:flex-start;gap:18px;}
  .usage-row{flex-direction:column;align-items:flex-start;gap:14px;padding:20px;}
  .usage-tags{flex-wrap:wrap;}
  .faq-item summary{padding:18px 20px;font-size:15px;}
  .faq-body{padding:0 20px 20px;}
  .cta-card{padding:28px 22px;border-radius:var(--r-md);}
  .cta-card__text h2{font-size:25px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:10px;}
  .breadcrumb__inner{height:42px;}
}
@media screen and (max-width:519px){
  h1{font-size:28px;}
  .channel-hero h1{font-size:28px;}
  .compare-card{padding:24px;}
  .badge-pill{padding:12px 18px;}
  .badge-pill b{font-size:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --ink:#241A5B;
  --ink-deep:#16123A;
  --ink-mid:#3B2A8C;
  --cyan:#17BFD0;
  --cyan-soft:#E6F7FA;
  --orange:#FF7A45;
  --gold:#FFC24B;
  --bg:#F5F4FB;
  --card:#FFFFFF;
  --line:#E7E5F2;
  --t1:#15132B;
  --t2:#5A5776;
  --t3:#8B88A6;
  --ok:#16A34A;
  --warn:#E4572E;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh1:0 8px 24px rgba(36,26,91,.08);
  --sh2:0 16px 40px rgba(36,26,91,.14);
  --grad:linear-gradient(135deg,#241A5B 0%,#3B2A8C 55%,#17BFD0 100%);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:140px;-webkit-text-size-adjust:100%}
body{margin:0;font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.9;color:var(--t1);background:var(--bg);}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--cyan)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--t1);letter-spacing:0}
p{margin:0}
h1{font-size:40px}
h2{font-size:32px}
h3{font-size:22px}
h4{font-size:18px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container>.row{margin-left:-0.9375rem;margin-right:-0.9375rem;max-width:none}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--white{background:#fff}
.section--dark{background:var(--ink-deep);color:#fff;position:relative;overflow:hidden}
.section--dark h2,.section--dark h3{color:#fff}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:var(--cyan-soft);color:#0E8B99;font-size:13px;font-weight:600;margin-bottom:16px}
.section--dark .eyebrow{background:rgba(23,191,208,.16);color:#7FE3EC}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head p{margin-top:14px;color:var(--t2);font-size:16px}
.section--dark .sec-head p{color:rgba(255,255,255,.72)}

/* Header */
.site-header{position:sticky;top:0;z-index:80;background:#fff;box-shadow:0 1px 0 var(--line),0 4px 18px rgba(36,26,91,.05)}
.header-top__inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__mark{width:34px;height:34px;border-radius:11px;background:var(--grad);position:relative;box-shadow:0 6px 16px rgba(36,26,91,.25);flex:0 0 auto}
.brand__mark::after{content:'';position:absolute;inset:0;border-radius:11px;background:radial-gradient(circle at 72% 28%,rgba(255,255,255,.95) 0 1.8px,transparent 1.9px),radial-gradient(circle at 30% 72%,rgba(255,194,75,.95) 0 1.5px,transparent 1.6px)}
.brand__name{display:block;font-size:17px;font-weight:700;color:var(--ink);line-height:1.2;white-space:nowrap}
.brand__sub{display:block;font-size:11px;color:var(--t3);line-height:1.5;white-space:nowrap}
.header-search{flex:1 1 auto;max-width:420px;position:relative;margin-left:auto}
.header-search input{width:100%;height:40px;border-radius:999px;border:1px solid var(--line);background:var(--bg);padding:0 46px 0 18px;font-size:14px;color:var(--t1);transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease)}
.header-search input::placeholder{color:var(--t3)}
.header-search input:focus{outline:none;border-color:var(--cyan);background:#fff;box-shadow:0 0 0 4px rgba(23,191,208,.13)}
.header-search button{position:absolute;right:4px;top:4px;width:32px;height:32px;border-radius:50%;border:0;background:var(--grad);color:#fff;cursor:pointer;font-size:13px}
.header-cta{flex:0 0 auto;height:42px;padding:0 22px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:17px;cursor:pointer;flex:0 0 auto}
.header-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 20px}
.header-drawer.is-open{display:block}
.header-drawer .header-search{max-width:none;margin:0 0 14px}
.header-drawer .btn{width:100%}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:999px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease)}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(36,26,91,.22)}
.btn--primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 14px 30px rgba(36,26,91,.3);filter:brightness(1.06)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(36,26,91,.24)}
.btn--outline{background:#fff;color:var(--ink);border-color:var(--line)}
.btn--outline:hover{color:var(--ink);border-color:var(--ink);box-shadow:var(--sh1)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn--ghost:hover{color:#fff;background:rgba(255,255,255,.12);border-color:#fff}
.btn[disabled]{opacity:.6;cursor:not-allowed}
.btn--sm{height:38px;padding:0 18px;font-size:14px}

/* Channel bar */
.channel-bar{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.channel-bar__inner{display:flex;gap:10px;align-items:center;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel-pill{flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--t2);background:var(--bg);border:1px solid transparent;white-space:nowrap;transition:all .22s var(--ease)}
.channel-pill:hover{color:var(--ink);background:#fff;border-color:var(--line);box-shadow:var(--sh1)}
.channel-pill.is-active{background:var(--grad);color:#fff;box-shadow:0 8px 18px rgba(36,26,91,.22)}
.channel-pill.is-active:hover{color:#fff}

/* Breadcrumb */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--t3);padding:20px 0 0;white-space:nowrap;overflow:hidden}
.breadcrumb a{color:var(--t3)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{color:#C9C6DD}
.breadcrumb .current{color:var(--ink);font-weight:600;overflow:hidden;text-overflow:ellipsis}

/* Channel head */
.channel-head{position:relative;background:linear-gradient(180deg,#FFFFFF 0%,#F8F7FD 55%,var(--bg) 100%);border-bottom:1px solid var(--line);overflow:hidden}
.channel-head::before{content:'';position:absolute;inset:0;background-image:radial-gradient(circle,rgba(36,26,91,.10) 1px,transparent 1px);background-size:26px 26px;opacity:.5;pointer-events:none}
.channel-head__inner{position:relative;padding:34px 0 52px}
.channel-head h1{max-width:720px}
.channel-head__lead{max-width:660px;margin-top:16px;color:var(--t2);font-size:16.5px}
.channel-head__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.badge-stack{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-start;margin-top:28px}
.badge{display:inline-flex;flex-direction:column;gap:2px;min-width:118px;padding:12px 16px;border-radius:var(--r-sm);background:#fff;border:1px solid var(--line);box-shadow:var(--sh1)}
.badge b{font-size:22px;font-weight:700;color:var(--ink);line-height:1.2}
.badge span{font-size:12.5px;color:var(--t3);line-height:1.5}

/* Timeline */
.timeline{position:relative;margin-top:8px}
.timeline::before{content:'';position:absolute;left:27px;top:14px;bottom:14px;width:2px;background:linear-gradient(180deg,#241A5B 0%,#3B2A8C 55%,#17BFD0 100%);border-radius:2px;opacity:.9}
.timeline__item{display:grid;grid-template-columns:56px 1fr;gap:28px;padding-bottom:38px;position:relative}
.timeline__item:last-child{padding-bottom:0}
.timeline__node{width:56px;height:56px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;box-shadow:0 0 0 8px var(--bg),0 10px 22px rgba(36,26,91,.22);position:relative;z-index:1}
.timeline__panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 28px;box-shadow:var(--sh1);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease)}
.timeline__panel:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#D6D1EC}
.timeline__stage{display:inline-block;font-size:12.5px;font-weight:600;color:#0E8B99;background:var(--cyan-soft);border-radius:999px;padding:3px 12px;margin-bottom:12px}
.timeline__panel h3{margin-bottom:10px}
.timeline__panel>p{color:var(--t2);font-size:15.5px}
.timeline__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.chip{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:var(--bg);font-size:12.5px;color:var(--t2)}
.chip i{color:var(--cyan);font-size:11px}
.chip--gold b{color:var(--orange);font-weight:700}
.fold{margin-top:18px;border-top:1px dashed var(--line);padding-top:14px}
.fold summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink)}
.fold summary::-webkit-details-marker{display:none}
.fold summary::after{content:'+';display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:var(--cyan-soft);color:#0E8B99;font-size:14px;line-height:1;font-weight:600}
.fold[open] summary::after{content:'−'}
.fold summary:hover{color:var(--cyan)}
.fold__body{padding-top:12px}
.fold__body li{position:relative;padding-left:18px;font-size:14.5px;color:var(--t2);line-height:1.85;margin-bottom:6px}
.fold__body li:last-child{margin-bottom:0}
.fold__body li::before{content:'';position:absolute;left:0;top:.75em;width:6px;height:6px;border-radius:50%;background:var(--cyan);opacity:.85}
.fold__body li b{color:var(--t1);font-weight:600}

/* Rights */
.rights-wrap{display:grid;grid-template-columns:300px 1fr;gap:56px;align-items:start}
.rights-aside{position:sticky;top:148px}
.rights-aside h2{margin-bottom:14px}
.rights-aside p{color:var(--t2);font-size:15px}
.rights-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.rights-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--sh1);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease)}
.rights-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#D6D1EC}
.rights-card__icon{width:44px;height:44px;border-radius:14px;background:var(--cyan-soft);color:#0E8B99;display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:14px}
.rights-card h3{font-size:18px;margin-bottom:8px}
.rights-card p{color:var(--t2);font-size:14.8px}

/* Prepare strip */
.prepare{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:34px 36px;display:grid;grid-template-columns:1.1fr 1.6fr;gap:40px;align-items:center}
.prepare__list{display:grid;gap:14px}
.prepare__item{display:flex;gap:14px;align-items:flex-start}
.prepare__num{flex:0 0 auto;width:28px;height:28px;border-radius:50%;background:var(--grad);color:#fff;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:4px}
.prepare__item h4{font-size:16px;margin-bottom:2px}
.prepare__item p{color:var(--t2);font-size:14.5px}

/* FAQ */
.faq{display:grid;grid-template-columns:320px 1fr;gap:56px;align-items:start}
.faq__aside{position:sticky;top:148px}
.faq__aside p{color:var(--t2);margin-top:14px;font-size:15px}
.faq-acc{background:transparent;border:0;margin:0}
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-acc .accordion-title{background:transparent;border:0;padding:20px 52px 20px 0;font-size:16px;font-weight:600;color:var(--t1);transition:color .2s var(--ease)}
.faq-acc .accordion-title::before{content:'+';position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:20px;font-weight:400;color:var(--ink);line-height:1}
.faq-acc .accordion-title:hover,.faq-acc .accordion-title:focus{background:transparent;color:var(--ink)}
.faq-acc .accordion-item.is-active .accordion-title::before{content:'−'}
.faq-acc .accordion-item.is-active .accordion-title{color:var(--ink)}
.faq-acc .accordion-item.is-active{border-left:3px solid var(--cyan);padding-left:16px;margin-left:-19px}
.faq-acc .accordion-content{display:block;background:transparent;border:0;padding:0 40px 22px 0;color:var(--t2);font-size:15px;line-height:1.95}

/* CTA */
.cta-card{background:var(--grad);border-radius:var(--r-lg);padding:52px;display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center;position:relative;overflow:hidden;box-shadow:0 24px 60px rgba(36,26,91,.28)}
.cta-card::before{content:'';position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,255,255,.5) 1px,transparent 1px);background-size:34px 34px;opacity:.16;pointer-events:none}
.cta-card__text{position:relative;color:#fff}
.cta-card__text h2{color:#fff;margin-bottom:14px}
.cta-card__text p{color:rgba(255,255,255,.82);font-size:15.5px}
.cta-points{margin-top:22px;display:grid;gap:10px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.92);font-size:14.8px}
.cta-points i{color:var(--gold);margin-top:6px;font-size:13px}
.form-card{position:relative;background:#fff;border-radius:var(--r-md);padding:28px;box-shadow:var(--sh2)}
.form-card h3{font-size:18px;margin-bottom:6px}
.form-card>p{color:var(--t3);font-size:13.5px;margin-bottom:18px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--t1);margin-bottom:7px}
.field input,.field select{width:100%;height:46px;border-radius:var(--r-sm);border:1px solid var(--line);background:#FCFCFE;padding:0 14px;font-size:15px;color:var(--t1);transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease)}
.field input::placeholder{color:var(--t3)}
.field input:focus,.field select:focus{outline:none;border-color:var(--ink-mid);background:#fff;box-shadow:0 0 0 4px rgba(23,191,208,.13)}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--t2) 50%),linear-gradient(135deg,var(--t2) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.form-card .btn{width:100%;margin-top:6px}
.form-note{margin-top:12px;font-size:12.5px;color:var(--t3);text-align:center}
.form-tip{margin-top:12px;font-size:13px;color:var(--ok);display:none}
.form-tip.is-show{display:block}

/* Footer */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:66px 0 26px;position:relative}
.site-footer::before{content:'';position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,255,255,.4) 1px,transparent 1px);background-size:36px 36px;opacity:.07;pointer-events:none}
.footer-grid{position:relative;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand__name{color:#fff}
.footer-brand .brand__sub{color:rgba(255,255,255,.55)}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:var(--cyan)}
.footer-contact li{color:rgba(255,255,255,.72);font-size:14px}
.footer-bottom{position:relative;margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.5)}

/* Responsive */
@media (max-width:1199px){
  .rights-wrap{grid-template-columns:1fr;gap:32px}
  .rights-aside{position:static}
  .faq{grid-template-columns:1fr;gap:28px}
  .faq__aside{position:static}
}
@media (max-width:991px){
  h1{font-size:34px}
  h2{font-size:27px}
  .section{padding:64px 0}
  .header-search{display:none}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto}
  .prepare{grid-template-columns:1fr;gap:26px;padding:28px}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:640px){
  h1{font-size:28px}
  h2{font-size:23px}
  h3{font-size:19px}
  body{font-size:15.5px}
  .container{padding:0 16px}
  .container>.row{margin-left:-0.9375rem;margin-right:-0.9375rem}
  .section{padding:52px 0}
  .channel-head__inner{padding:24px 0 40px}
  .badge{min-width:calc(50% - 6px);flex:1 1 calc(50% - 6px)}
  .timeline::before{left:21px}
  .timeline__item{grid-template-columns:44px 1fr;gap:16px;padding-bottom:26px}
  .timeline__node{width:44px;height:44px;font-size:14px;box-shadow:0 0 0 6px var(--bg),0 8px 18px rgba(36,26,91,.2)}
  .timeline__panel{padding:20px}
  .rights-grid{grid-template-columns:1fr}
  .cta-card{padding:26px 20px}
  .form-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .faq-acc .accordion-item.is-active{padding-left:12px;margin-left:-12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category5 */
:root{
  --ink:#241A5B;
  --ink-deep:#16123A;
  --ink-mid:#3B2A8C;
  --cyan:#17BFD0;
  --cyan-soft:#E6F7FA;
  --orange:#FF7A45;
  --gold:#FFC24B;
  --bg:#F5F4FB;
  --card:#FFFFFF;
  --line:#E7E5F2;
  --t1:#15132B;
  --t2:#5A5776;
  --t3:#8B88A6;
  --ok:#16A34A;
  --warn:#E4572E;
  --grad:linear-gradient(135deg,#241A5B 0%,#3B2A8C 55%,#17BFD0 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(36,26,91,.08);
  --sh-2:0 16px 40px rgba(36,26,91,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:130px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;color:var(--t1);letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--cyan);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:200;}
.skip-link:focus{left:0;color:#fff;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.no-scroll{overflow:hidden;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:0 1px 0 var(--line);}
.header-top__inner{display:flex;align-items:center;gap:18px;height:68px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand__mark{
  position:relative;width:38px;height:38px;border-radius:12px;background:var(--grad);
  box-shadow:0 6px 16px rgba(36,26,91,.25);flex:0 0 auto;overflow:hidden;
}
.brand__mark::after{
  content:"";position:absolute;inset:0;opacity:.9;
  background:
    radial-gradient(circle at 26% 30%,#fff 0 1.4px,transparent 2px),
    radial-gradient(circle at 72% 58%,#FFC24B 0 1.5px,transparent 2.2px),
    radial-gradient(circle at 44% 76%,#fff 0 1px,transparent 1.6px),
    radial-gradient(circle at 82% 22%,#E6F7FA 0 1px,transparent 1.6px);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__name{font-size:18px;font-weight:700;color:var(--ink);}
.brand__sub{font-size:12px;color:var(--t3);}
.search-box{position:relative;flex:1 1 auto;max-width:400px;margin-left:12px;}
.search-box input{
  width:100%;height:42px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--bg);padding:0 46px 0 18px;font-size:14px;color:var(--t1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-box input::placeholder{color:var(--t3);}
.search-box input:focus{outline:none;border-color:var(--cyan);background:#fff;box-shadow:0 0 0 4px rgba(23,191,208,.14);}
.search-box button{
  position:absolute;right:5px;top:50%;transform:translateY(-50%);
  width:32px;height:32px;border-radius:50%;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:background .2s var(--ease);
}
.search-box button:hover{background:var(--ink-mid);}
.header-cta{margin-left:auto;}
.menu-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);}

.channel-bar{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.channel-bar__inner{display:flex;gap:10px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none;}
.channel-bar__inner::-webkit-scrollbar{display:none;}
.channel-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--r-pill);background:#F1F0F9;color:var(--t2);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease);
}
.channel-pill:hover{background:var(--cyan-soft);color:var(--ink);}
.channel-pill.is-active{background:var(--grad);color:#fff;box-shadow:0 6px 16px rgba(36,26,91,.22);}
.channel-pill.is-active:hover{color:#fff;}

/* ---------- mobile drawer ---------- */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(21,19,43,.5);opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:80;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;left:0;bottom:0;width:84%;max-width:330px;background:#fff;z-index:90;
  transform:translateX(-102%);transition:transform .3s var(--ease);
  padding:22px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.mobile-drawer__close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--ink);}
.mobile-drawer__title{font-size:13px;color:var(--t3);font-weight:600;letter-spacing:.06em;margin:10px 0 10px;}
.mobile-drawer nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;border-bottom:1px solid var(--line);font-size:15px;font-weight:600;color:var(--t1);
}
.mobile-drawer nav a.is-active{color:var(--ink);}
.mobile-drawer nav a.is-active::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--cyan);}
.mobile-drawer .btn{width:100%;justify-content:center;margin-top:20px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
}
.btn i{font-size:13px;}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(36,26,91,.22);}
.btn--primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(36,26,91,.3);filter:brightness(1.06);}
.btn--outline{background:#fff;border-color:var(--line);color:var(--ink);}
.btn--outline:hover{border-color:var(--cyan);color:var(--ink);box-shadow:var(--sh-1);transform:translateY(-1px);}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn:active{transform:translateY(0);}
.btn--block{width:100%;}

/* ---------- page banner ---------- */
.page-banner{
  position:relative;border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(118deg,rgba(245,244,251,.95) 0%,rgba(230,247,250,.92) 58%,rgba(237,235,250,.9) 100%),
    url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13.5px;color:var(--t3);padding-top:26px;}
.breadcrumb a{color:var(--t3);}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{color:#C4C1DA;}
.breadcrumb .current{color:var(--ink);font-weight:600;}
.page-banner__grid{display:grid;grid-template-columns:1.25fr .85fr;gap:44px;align-items:center;padding:34px 0 54px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--cyan);text-transform:none;margin-bottom:14px;
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--cyan);}
.eyebrow--light{color:#8FE7EF;}
.eyebrow--light::before{background:#8FE7EF;}
.page-banner h1{font-size:44px;line-height:1.22;}
.page-banner__lead{margin-top:18px;font-size:17px;color:var(--t2);max-width:34em;}
.page-banner__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.banner-badges{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.stat-badge{
  background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:16px 18px;backdrop-filter:blur(4px);box-shadow:0 6px 18px rgba(36,26,91,.06);
}
.stat-badge b{display:block;font-size:22px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.stat-badge span{display:block;font-size:12.5px;color:var(--t3);margin-top:2px;}

/* ---------- sections ---------- */
.section{padding:84px 0;}
.section--soft{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:34px;}
.section-head p{margin-top:14px;color:var(--t2);font-size:16px;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.section-head--row .text-link{flex:0 0 auto;margin-bottom:6px;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--ink);}
.text-link i{transition:transform .2s var(--ease);font-size:13px;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- resource layout ---------- */
.resource-layout{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:36px;align-items:stretch;}
.resource-visual{position:relative;margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);min-height:520px;background:var(--ink-deep);}
.resource-visual img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.resource-visual figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:20px 24px;color:#fff;font-size:14px;
  background:linear-gradient(180deg,rgba(22,18,58,0) 0%,rgba(22,18,58,.82) 100%);
}
.resource-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.resource-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:20px;
  display:flex;flex-direction:column;gap:8px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.resource-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFEAF0;}
.resource-item__no{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--orange);}
.resource-item__title{font-size:17px;}
.resource-item__text{font-size:14.5px;color:var(--t2);line-height:1.75;}
.tag{
  display:inline-block;align-self:flex-start;padding:3px 11px;border-radius:var(--r-pill);
  background:var(--cyan-soft);color:#0E7C88;font-size:12px;font-weight:600;
}

/* ---------- device grid ---------- */
.device-row{max-width:none;margin:0 -10px;display:flex;flex-wrap:wrap;}
.device-row::before,.device-row::after{display:none;}
.device-row > .columns{padding-left:10px;padding-right:10px;margin-bottom:20px;float:none;}
.device-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFEAF0;}
.device-card__icon{
  width:46px;height:46px;border-radius:14px;background:var(--cyan-soft);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.device-card h3{font-size:18px;margin-bottom:10px;}
.device-card p{font-size:14.5px;color:var(--t2);line-height:1.75;}
.device-card__meta{margin-top:14px;font-size:13px;color:var(--t3);display:flex;align-items:center;gap:6px;}
.badge-strip{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid #D6D3E8;background:transparent;color:var(--t2);font-size:13.5px;font-weight:600;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.badge i{color:var(--cyan);font-size:12px;}
.badge:hover{border-color:var(--cyan);color:var(--ink);background:var(--cyan-soft);}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:48px;align-items:start;}
.faq-aside h2{font-size:30px;}
.faq-aside p{margin:14px 0 24px;color:var(--t2);font-size:15px;}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 18px 20px 20px;font-size:16px;font-weight:600;color:var(--t1);line-height:1.6;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--t3);font-size:15px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.faq-item summary:hover{color:var(--ink);background:#FBFAFF;}
.faq-item summary:hover::after{border-color:var(--cyan);color:var(--cyan);}
.faq-item[open] summary{color:var(--ink);}
.faq-item[open] summary::after{content:"−";background:var(--grad);border-color:transparent;color:#fff;}
.faq-item[open] summary::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;background:var(--grad);}
.faq-answer{padding:0 24px 22px 20px;color:var(--t2);font-size:15px;line-height:1.85;}
.faq-answer p + p{margin-top:10px;}
.faq-answer ul{margin-top:10px;}
.faq-answer li{position:relative;padding-left:16px;margin-bottom:6px;font-size:14.5px;}
.faq-answer li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--cyan);}

/* ---------- rail ---------- */
.section--rail{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--rail .section-head{margin-bottom:32px;}
.rail-viewport{overflow-x:auto;overflow-y:hidden;padding:6px 6px 20px;scroll-snap-type:x mandatory;}
.rail-viewport::-webkit-scrollbar{height:6px;}
.rail-viewport::-webkit-scrollbar-thumb{background:rgba(36,26,91,.18);border-radius:99px;}
.rail-track{display:flex;gap:20px;width:max-content;}
.rail-card{
  width:280px;flex:0 0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;scroll-snap-align:start;display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFEAF0;color:inherit;}
.rail-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.rail-card__body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rail-card__body h3{font-size:17px;}
.rail-card__body p{font-size:14px;color:var(--t2);line-height:1.75;}
.rail-card__more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.rail-card__more i{font-size:12px;transition:transform .2s var(--ease);}
.rail-card:hover .rail-card__more{color:var(--cyan);}
.rail-card:hover .rail-card__more i{transform:translateX(4px);}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--grad);color:#fff;
  padding:48px;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start;
  box-shadow:0 20px 48px rgba(36,26,91,.22);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background:
    radial-gradient(circle at 12% 22%,rgba(255,255,255,.7) 0 1.4px,transparent 2px),
    radial-gradient(circle at 68% 16%,rgba(255,194,75,.8) 0 1.6px,transparent 2.4px),
    radial-gradient(circle at 84% 62%,rgba(255,255,255,.5) 0 1.2px,transparent 2px),
    radial-gradient(circle at 38% 84%,rgba(230,247,250,.6) 0 1.4px,transparent 2px);
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:32px;color:#fff;}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.cta-points li{display:flex;gap:12px;font-size:15px;color:rgba(255,255,255,.9);line-height:1.75;}
.cta-points i{color:#8FE7EF;font-size:16px;margin-top:4px;}
.cta-form{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:var(--r-md);padding:26px;backdrop-filter:blur(6px);}
.field{display:block;margin-bottom:16px;}
.field > span{display:block;font-size:13.5px;font-weight:600;color:rgba(255,255,255,.86);margin-bottom:8px;}
.field input,.field select{
  width:100%;height:46px;border-radius:12px;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.94);padding:0 14px;font-size:14.5px;color:var(--t1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:var(--t3);}
.field input:focus,.field select:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(23,191,208,.22);}
.form-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.72);line-height:1.7;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.site-footer .brand__name{color:#fff;}
.site-footer .brand__sub{color:rgba(255,255,255,.55);}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:32em;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--cyan);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.62);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.5);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .page-banner h1{font-size:38px;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .section-head h2{font-size:28px;}
  .page-banner__grid{grid-template-columns:1fr;gap:32px;padding:30px 0 44px;}
  .page-banner h1{font-size:34px;}
  .resource-layout{grid-template-columns:1fr;}
  .resource-visual{min-height:300px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .search-box{display:none;}
  .menu-toggle{display:flex;}
  .header-cta{height:40px;padding:0 16px;font-size:14px;}
  .brand__sub{display:none;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:30px;}
  .section-head h2{font-size:24px;}
  .page-banner h1{font-size:28px;}
  .page-banner__lead{font-size:15.5px;}
  .banner-badges{grid-template-columns:1fr 1fr;gap:10px;}
  .stat-badge{padding:13px 14px;}
  .stat-badge b{font-size:19px;}
  .resource-list{grid-template-columns:1fr;}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:14px;}
  .rail-card{width:250px;}
  .cta-band{padding:28px 22px;}
  .cta-band h2{font-size:24px;}
  .cta-form{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:519px){
  .page-banner h1{font-size:25px;}
  .banner-badges{grid-template-columns:1fr;}
  .rail-card{width:230px;}
  .btn{height:42px;padding:0 18px;font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}