/* roulang page: index */
:root{
  --bg-base:#08131F;
  --bg-elev:#0E1D2E;
  --glass:rgba(255,255,255,.06);
  --brand:#1FB6A6;
  --brand-hi:#38D6C4;
  --accent:#F5A524;
  --text-1:#EAF2F8;
  --text-2:#A9BACB;
  --text-3:#6C8199;
  --line:rgba(255,255,255,.10);
  --ok:#35C46A;
  --warn:#F5A524;
  --danger:#E4573D;
  --r-hero:20px;
  --r-card:16px;
  --r-btn:10px;
  --shadow:0 0 0 1px rgba(255,255,255,.06) inset, 0 18px 40px -20px rgba(0,0,0,.8);
  --s-1:4px; --s-2:8px; --s-3:12px; --s-4:16px; --s-5:24px; --s-6:32px; --s-7:48px; --s-8:64px; --s-9:96px; --s-10:120px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(620px 350px at 10% -8%, rgba(31,182,166,.09), transparent 70%),
    radial-gradient(760px 420px at 92% 2%, rgba(245,165,36,.06), transparent 72%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,auto,52px 52px,52px 52px;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-hi);}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.3;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-hi);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  height:68px;
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .22s ease-out,border-color .22s ease-out,backdrop-filter .22s ease-out;
}
.site-header.is-scrolled{
  background:rgba(8,19,31,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--text-1);letter-spacing:.01em;}
.brand:hover{color:var(--text-1);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(150deg,var(--brand-hi),var(--brand));
  color:#04131a;font-size:13px;font-weight:800;letter-spacing:0;
  box-shadow:0 8px 20px -10px rgba(31,182,166,.75);
}
.brand-text{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;
  font-size:15px;color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand-hi);opacity:0;transform:scaleX(.4);transition:opacity .2s ease-out,transform .2s ease-out;
}
.nav-link:hover{color:var(--text-1);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{opacity:1;transform:scaleX(1);}
.nav-cta{margin-left:20px;padding:10px 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--glass);color:var(--text-1);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
}
.mobile-nav{
  display:none;
  position:fixed;left:0;right:0;top:56px;bottom:0;z-index:1029;
  background:rgba(9,21,34,.96);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  padding:16px 24px 40px;
  overflow-y:auto;
  border-top:1px solid var(--line);
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:block;line-height:48px;font-size:16px;color:var(--text-1);
  border-bottom:1px solid var(--line);
}
.mobile-nav a.active{color:var(--brand-hi);}
.mobile-nav .btn{display:flex;justify-content:center;margin-top:22px;}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  padding:13px 26px;
  border:0;
  cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,filter .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-glow{
  background:linear-gradient(180deg,var(--brand-hi),var(--brand));
  color:#04131a;
  box-shadow:0 10px 30px -10px rgba(31,182,166,.55);
}
.btn-glow:hover,.btn-glow:focus{
  color:#04131a;
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:0 16px 38px -12px rgba(31,182,166,.72);
}
.btn-glow:active{transform:translateY(0);box-shadow:0 8px 22px -12px rgba(31,182,166,.6);}
.btn-ghost{
  background:transparent;
  color:var(--text-1);
  border:1px solid rgba(255,255,255,.22);
  font-weight:500;
}
.btn-ghost:hover,.btn-ghost:focus{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.36);
  color:var(--text-1);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(0);background:rgba(255,255,255,.05);}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand-hi);}
.link-more i{transition:transform .2s ease-out;}
.link-more:hover i{transform:translateX(3px);}

/* ============ section 基础 ============ */
.section{padding:96px 0;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{font-size:clamp(22px,2.4vw,32px);line-height:1.35;}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--brand-hi);
  background:rgba(31,182,166,.10);
  border:1px solid rgba(31,182,166,.28);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:22px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-hi);}

/* ============ hero ============ */
.hero{padding:72px 0 88px;position:relative;}
.hero h1{font-size:clamp(28px,4vw,46px);line-height:1.25;}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:40px;
  margin-top:44px;padding-top:26px;
  border-top:1px solid var(--line);
}
.hero-stats .stat-num{font-size:28px;font-weight:700;line-height:1.2;color:var(--brand-hi);}
.hero-stats .stat-label{font-size:13px;color:var(--text-3);margin-top:4px;}
.hero-card{
  border-radius:var(--r-hero);
  padding:14px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.hero-card-img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px;
  background:linear-gradient(150deg,rgba(31,182,166,.25),rgba(14,29,46,.9));
}
.status-list{margin-top:16px;padding:0 6px 6px;}
.status-list li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--text-2);
  padding:8px 0;
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.status-list li:last-child{border-bottom:0;}
.dot{width:8px;height:8px;border-radius:50%;flex:0 0 8px;}
.dot-ok{background:var(--ok);box-shadow:0 0 0 4px rgba(53,196,106,.14);}
.dot-warn{background:var(--warn);box-shadow:0 0 0 4px rgba(245,165,36,.14);}

/* ============ 步骤时间轴 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.step{position:relative;padding-right:8px;}
.step::after{
  content:"";position:absolute;top:16px;left:46px;right:-18px;height:1px;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,.24) 0 6px,transparent 6px 12px);
}
.step:last-child::after{display:none;}
.step-num{
  width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--brand-hi);
  border:1px solid rgba(56,214,196,.5);
  background:rgba(31,182,166,.08);
  position:relative;z-index:1;
}
.step h3{margin:18px 0 10px;font-size:18px;}
.step p{font-size:14px;color:var(--text-2);}
.step-note{margin-top:12px;font-size:12px;color:var(--text-3);display:flex;align-items:center;gap:6px;}

/* ============ 卡片 ============ */
.card-x{
  position:relative;
  height:100%;
  border-radius:var(--r-card);
  padding:26px;
  background:linear-gradient(160deg,rgba(255,255,255,.045),rgba(255,255,255,.012)),var(--bg-elev);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .22s ease-out,border-color .22s ease-out;
}
.card-x:hover{transform:translateY(-2px);border-color:rgba(56,214,196,.4);}
.feature-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:rgba(31,182,166,.12);
  border:1px solid rgba(31,182,166,.28);
  color:var(--brand-hi);font-size:16px;
  margin-bottom:18px;
}
.card-x h3{font-size:18px;margin-bottom:10px;}
.card-x p{font-size:14px;color:var(--text-2);}

/* ============ 案例反色带 ============ */
.band-light{
  background:#EEF3F7;
  color:#0B1A28;
  padding:96px 0;
}
.band-light .section-head h2{color:#0B1A28;}
.band-light .section-head p{color:#4A5F72;}
.band-light .eyebrow{
  background:rgba(31,182,166,.14);border-color:rgba(14,124,114,.28);color:#0E7C72;
}
.band-light .eyebrow::before{background:#0E7C72;}
.case-card{
  border-radius:var(--r-card);
  overflow:hidden;
  background:#fff;
  border:1px solid rgba(11,26,40,.08);
  box-shadow:0 14px 30px -18px rgba(11,26,40,.35);
  transition:transform .22s ease-out,box-shadow .22s ease-out;
  height:100%;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-2px);box-shadow:0 20px 40px -20px rgba(11,26,40,.42);}
.case-media img{width:100%;object-fit:cover;background:linear-gradient(150deg,#cfe0e6,#eef3f7);}
.case-lg .case-media img{aspect-ratio:16/9;}
.case-sm .case-media img{aspect-ratio:4/3;}
.case-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;}
.case-tag{
  align-self:flex-start;
  font-size:12px;font-weight:600;
  color:#0E7C72;background:rgba(31,182,166,.14);
  border-radius:999px;padding:4px 12px;
}
.case-card h3{font-size:18px;color:#0B1A28;line-height:1.45;}
.case-data{font-size:13px;color:#42586B;}
.case-stack{display:flex;flex-direction:column;gap:24px;height:100%;}
.case-offset{margin-top:24px;}

/* ============ FAQ ============ */
.faq-wrap .section-head{margin-bottom:0;}
.faq-accordion .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq-accordion .accordion-item:first-child{border-top:1px solid var(--line);}
.faq-accordion .accordion-button{
  background:transparent;
  color:var(--text-1);
  font-size:16.5px;
  font-weight:600;
  padding:20px 44px 20px 0;
  box-shadow:none;
  border-radius:0;
  position:relative;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--text-1);
  background:transparent;
  box-shadow:none;
}
.faq-accordion .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:-16px;top:16px;bottom:16px;width:3px;border-radius:3px;background:var(--brand-hi);
}
.faq-accordion .accordion-button:hover{color:var(--brand-hi);}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:none;}
.faq-accordion .accordion-button:focus-visible{outline:2px solid var(--brand-hi);outline-offset:2px;}
.faq-accordion .accordion-button::after{
  content:"+";
  background-image:none;
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:400;color:var(--brand-hi);
  transform:none;
  position:absolute;right:6px;top:50%;margin-top:-12px;
  transition:transform .2s ease-out;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"−";transform:none;}
.faq-accordion .accordion-body{
  padding:0 40px 22px 0;
  font-size:14px;line-height:1.8;color:var(--text-2);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-hero);
  padding:56px;
  background:
    radial-gradient(520px 260px at 12% 0%, rgba(31,182,166,.22), transparent 68%),
    radial-gradient(400px 240px at 88% 100%, rgba(245,165,36,.14), transparent 70%),
    #0A1826;
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.4vw,32px);margin-bottom:14px;}
.cta-band p{color:var(--text-2);font-size:16px;max-width:560px;}
.cta-band .btn{margin-top:28px;}
.assure-list{display:flex;flex-direction:column;gap:14px;}
.assure-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--text-2);
}
.assure-list li i{color:var(--brand-hi);font-size:13px;margin-top:5px;}

/* ============ CMS 列表 ============ */
.post-card{
  display:flex;flex-direction:column;
  height:100%;
  border-radius:var(--r-card);
  overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.045),rgba(255,255,255,.012)),var(--bg-elev);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .22s ease-out,border-color .22s ease-out;
  color:var(--text-1);
}
.post-card:hover{transform:translateY(-2px);border-color:rgba(56,214,196,.4);color:var(--text-1);}
.post-media{position:relative;}
.post-media img{width:100%;aspect-ratio:16/9;object-fit:cover;background:linear-gradient(150deg,rgba(31,182,166,.22),rgba(14,29,46,.9));}
.badge-cat{
  position:absolute;left:14px;top:14px;
  font-size:12px;font-weight:600;
  color:#04131a;
  background:linear-gradient(180deg,var(--brand-hi),var(--brand));
  border-radius:999px;padding:4px 12px;
}
.post-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-body h3{
  font-size:17px;
  line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-sum{
  font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--text-3);
}
.post-meta .arrow{color:var(--brand-hi);transition:transform .2s ease-out;}
.post-card:hover .arrow{transform:translateX(3px);}
.empty-state{
  border:1px dashed rgba(255,255,255,.22);
  border-radius:var(--r-card);
  padding:56px 24px;
  text-align:center;
  background:rgba(255,255,255,.02);
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:14px;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--glass);color:var(--text-3);font-size:20px;
}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:20px;}

/* ============ footer ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(6,15,24,.72);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2fr 3fr 3fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;margin-bottom:16px;}
.footer-about{font-size:14px;color:var(--text-3);max-width:320px;line-height:1.8;}
.footer-col h4{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--text-1);margin-bottom:18px;}
.footer-col li{margin-bottom:12px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--brand-hi);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--brand-hi);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .section{padding:80px 0;}
  .band-light{padding:80px 0;}
  .footer-grid{grid-template-columns:2fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:48px 0 64px;}
  .hero-card{margin-top:36px;}
  .steps{grid-template-columns:1fr;gap:24px;}
  .step::after{
    top:auto;bottom:-14px;left:16px;right:auto;width:1px;height:14px;
    background:repeating-linear-gradient(180deg,rgba(255,255,255,.24) 0 5px,transparent 5px 10px);
  }
  .case-offset{margin-top:0;}
  .cta-band{padding:40px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .site-header{height:56px;}
  .mobile-nav{top:56px;}
  .section{padding:56px 0;}
  .band-light{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .hero-stats{gap:26px;}
  .hero-stats .stat-num{font-size:24px;}
  .card-x{padding:22px;}
  .faq-accordion .accordion-button{font-size:16px;padding-right:36px;}
  .faq-accordion .accordion-button:not(.collapsed)::before{left:-10px;}
  .faq-accordion .accordion-body{padding-right:16px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  .hero-actions .btn{width:100%;}
  .brand-text{font-size:15px;}
  .cta-band{padding:32px 22px;}
}

/* roulang page: article */
:root{
  --bg-base:#08131F;
  --bg-elev:#0E1D2E;
  --bg-deep:#060F19;
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.09);
  --brand:#1FB6A6;
  --brand-hi:#38D6C4;
  --accent:#F5A524;
  --text-1:#EAF2F8;
  --text-2:#A9BACB;
  --text-3:#6C8199;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --ok:#35C46A;
  --warn:#F5A524;
  --danger:#E4573D;
  --radius-hero:20px;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 0 0 1px rgba(255,255,255,.06) inset, 0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-glow:0 10px 30px -10px rgba(31,182,166,.55);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px; --sp-10:120px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  font-weight:400;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg-base);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(880px 600px at 10% -6%, rgba(31,182,166,.08), transparent 62%),
    radial-gradient(760px 520px at 90% 6%, rgba(245,165,36,.06), transparent 64%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,auto,100% 64px,64px 100%;
}
img{max-width:100%;display:block;}
a{color:var(--brand-hi);text-decoration:none;}
a:hover{color:var(--brand-hi);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-hi);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(31,182,166,.35);color:#fff;}

.container{
  width:100%;
  max-width:1200px;
  margin-inline:auto;
  padding-inline:24px;
}
.site-header,main,.site-footer{position:relative;z-index:1;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .22s ease-out, border-color .22s ease-out, backdrop-filter .22s ease-out;
}
.site-header.scrolled{
  background:rgba(8,19,31,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:68px;
  gap:var(--sp-5);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-1);
  text-decoration:none;
  flex-shrink:0;
}
.brand:hover{color:var(--text-1);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:34px;
  padding:0 11px;
  border-radius:10px;
  background:linear-gradient(180deg,var(--brand-hi),var(--brand));
  color:#04231F;
  font-family:var(--font-num);
  font-size:15px;
  font-weight:800;
  letter-spacing:.05em;
  box-shadow:0 8px 22px -12px rgba(31,182,166,.9);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  color:var(--text-2);
  text-decoration:none;
  white-space:nowrap;
  transition:color .18s ease-out;
}
.nav-link:hover{color:var(--text-1);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--brand-hi);
}
.nav-cta{margin-left:6px;padding:10px 20px;font-size:14px;}
.nav-toggle{
  display:none;
  width:44px;height:40px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--glass);
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Buttons ---------- */
.btn-glow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(56,214,196,.55);
  background:linear-gradient(180deg,#38D6C4,#1FB6A6);
  color:#04231F;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  text-decoration:none;
  box-shadow:var(--shadow-glow);
  transition:transform .18s ease-out, box-shadow .18s ease-out, filter .18s ease-out;
}
.btn-glow:hover,.btn-glow:focus{
  color:#04231F;
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:0 16px 38px -12px rgba(31,182,166,.7);
}
.btn-glow:active{transform:translateY(0);filter:brightness(.98);}
.btn-glow.btn-lg{padding:15px 32px;font-size:16px;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line-strong);
  background:transparent;
  color:var(--text-1);
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  transition:background .18s ease-out, border-color .18s ease-out, transform .18s ease-out;
}
.btn-ghost:hover{
  color:var(--text-1);
  background:rgba(255,255,255,.08);
  border-color:rgba(56,214,196,.45);
  transform:translateY(-1px);
}

/* ---------- Article head ---------- */
.article-hero{padding:44px 0 8px;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.crumb a{color:var(--text-3);text-decoration:none;transition:color .18s ease-out;}
.crumb a:hover{color:var(--brand-hi);}
.crumb .sep{color:rgba(255,255,255,.22);}
.crumb .current{color:var(--text-2);}
.article-title{
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.28;
  max-width:900px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  margin-top:20px;
  font-size:13px;
  color:var(--text-3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--brand);font-size:13px;}
.meta-chip{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  background:rgba(31,182,166,.14);
  border:1px solid rgba(31,182,166,.35);
  color:var(--brand-hi);
  font-size:12px;
  letter-spacing:.02em;
}
.lead-block{
  max-width:800px;
  margin:28px 0 0;
  padding:16px 22px;
  border-left:3px solid var(--brand);
  border-radius:0 14px 14px 0;
  background:var(--glass);
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}
.article-cover{
  margin:36px 0 0;
  border-radius:var(--radius-hero);
  overflow:hidden;
  aspect-ratio:21/9;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:linear-gradient(135deg,#0E1D2E,#0A1B2A 55%,#123044);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}

/* ---------- Article body ---------- */
.article-section{padding:48px 0 8px;}
.article-body{
  max-width:760px;
  margin:0 auto;
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:clamp(20px,2vw,26px);
  color:var(--text-1);
  margin:2em 0 .6em;
}
.article-body h3{
  font-size:18px;
  color:var(--text-1);
  margin:1.8em 0 .5em;
}
.article-body strong{color:var(--text-1);font-weight:600;}
.article-body a{color:var(--brand-hi);border-bottom:1px solid rgba(56,214,196,.35);}
.article-body a:hover{border-bottom-color:var(--brand-hi);}
.article-body img{border-radius:12px;margin:1.5em auto;box-shadow:var(--shadow-card);}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.3em;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.45em 0;}
.article-body blockquote{
  margin:1.6em 0;
  padding:16px 22px;
  background:var(--glass);
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
  color:var(--text-1);
  font-size:15px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  display:block;
  overflow-x:auto;
  font-size:14px;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
  white-space:nowrap;
}
.article-body th{background:rgba(255,255,255,.05);color:var(--text-1);}
.article-body pre{
  background:var(--bg-deep);
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px 18px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  color:var(--text-1);
  margin:1.6em 0;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:rgba(255,255,255,.08);
  border-radius:6px;
  padding:2px 6px;
  font-size:14px;
}
.article-body pre code{background:transparent;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{
  text-align:center;
  font-size:13px;
  color:var(--text-3);
  margin-top:10px;
}
.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-card);
  padding:56px 24px;
  text-align:center;
  background:rgba(255,255,255,.02);
}
.empty-state i{font-size:30px;color:var(--text-3);}
.empty-state p{margin:16px 0 22px;font-size:15px;color:var(--text-2);}

/* ---------- Tags ---------- */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  max-width:760px;
  margin:44px auto 0;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.tag-label{font-size:13px;color:var(--text-3);margin-right:4px;}
.tag{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  font-size:13px;
  text-decoration:none;
  transition:color .18s ease-out, border-color .18s ease-out, background .18s ease-out;
}
.tag:hover{color:var(--brand-hi);border-color:rgba(56,214,196,.45);background:rgba(31,182,166,.10);}

/* ---------- Related ---------- */
.relate-section{padding:72px 0 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{font-size:clamp(20px,2.2vw,28px);}
.section-head .more-link{
  font-size:14px;
  color:var(--text-2);
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:color .18s ease-out, gap .18s ease-out;
}
.section-head .more-link:hover{color:var(--brand-hi);gap:10px;}
.relate-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.relate-card{
  display:flex;
  flex-direction:column;
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  text-decoration:none;
  color:var(--text-1);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease-out, border-color .2s ease-out;
}
.relate-card:hover{transform:translateY(-2px);border-color:rgba(56,214,196,.45);color:var(--text-1);}
.relate-thumb{
  aspect-ratio:16/9;
  background:linear-gradient(135deg,#0E1D2E,#123044);
  overflow:hidden;
}
.relate-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.relate-card:hover .relate-thumb img{transform:scale(1.04);}
.relate-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.relate-body h3{font-size:17px;line-height:1.5;}
.relate-body p{font-size:14px;line-height:1.75;color:var(--text-2);}
.relate-more{
  margin-top:auto;
  font-size:13px;
  color:var(--brand-hi);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:gap .18s ease-out;
}
.relate-card:hover .relate-more{gap:10px;}

/* ---------- CTA band ---------- */
.cta-band{padding:80px 0 0;}
.cta-inner{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.35fr .95fr;
  gap:36px;
  align-items:center;
  padding:44px 48px;
  border-radius:var(--radius-hero);
  border:1px solid var(--line);
  background:radial-gradient(620px 320px at 12% 0%, rgba(31,182,166,.22), transparent 62%), linear-gradient(140deg,#0C1C2C,#0A1523 70%,#102A3A);
  box-shadow:var(--shadow-card);
}
.cta-inner h2{font-size:clamp(20px,2.2vw,28px);margin-bottom:12px;}
.cta-inner p{font-size:15px;color:var(--text-2);max-width:520px;}
.cta-side{display:flex;flex-direction:column;align-items:flex-start;gap:18px;}
.cta-notes{display:flex;flex-direction:column;gap:8px;}
.cta-notes li{
  display:flex;
  align-items:flex-start;
  gap:9px;
  font-size:13px;
  color:var(--text-2);
}
.cta-notes li::before{
  content:"";
  width:6px;height:6px;
  margin-top:8px;
  border-radius:50%;
  background:var(--brand-hi);
  flex-shrink:0;
}
.back-row{display:flex;justify-content:center;padding:36px 0 0;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,29,46,.55),rgba(6,15,25,.9));
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2fr 3fr 3fr;
  gap:32px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--text-1);
  margin-bottom:16px;
}
.footer-brand .brand-mark{height:30px;font-size:14px;padding:0 9px;}
.footer-about{font-size:14px;line-height:1.8;color:var(--text-2);max-width:340px;}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--text-1);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li a,.footer-col li span{font-size:14px;color:var(--text-2);text-decoration:none;transition:color .18s ease-out;}
.footer-col li a:hover{color:var(--brand-hi);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .relate-grid{gap:20px;}
  .cta-inner{padding:38px 34px;}
}
@media (max-width:991px){
  .header-inner{height:56px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;
    top:56px;
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 20px 22px;
    background:rgba(14,29,46,.98);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    max-height:0;
    overflow:hidden;
    opacity:0;
    pointer-events:none;
    transition:max-height .24s ease-out, opacity .2s ease-out;
  }
  .main-nav.open{max-height:520px;opacity:1;pointer-events:auto;}
  .nav-link{padding:0;line-height:48px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.05);}
  .nav-link.active::after{display:none;}
  .nav-link.active{color:var(--brand-hi);}
  .nav-cta{margin:16px 0 0;justify-content:center;line-height:1.4;}
  .article-hero{padding:32px 0 4px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .relate-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:1fr;gap:26px;padding:34px 28px;}
  .cta-side{align-items:stretch;}
}
@media (max-width:767px){
  .container{padding-inline:18px;}
  .article-cover{aspect-ratio:16/9;border-radius:16px;}
  .article-body{font-size:16px;}
  .relate-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .cta-band{padding-top:56px;}
  .relate-section{padding-top:56px;}
  .site-footer{margin-top:64px;padding-top:48px;}
}
@media (max-width:575px){
  .brand-text{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;}
  .article-title{font-size:24px;}
  .lead-block{padding:14px 16px;font-size:14px;}
  .btn-glow,.btn-ghost{width:100%;}
  .cta-side .btn-glow{width:100%;}
}

/* roulang page: category1 */
:root{
  --bg-base:#08131F;
  --bg-elev:#0E1D2E;
  --glass:rgba(255,255,255,.06);
  --brand:#1FB6A6;
  --brand-hi:#38D6C4;
  --accent:#F5A524;
  --text-1:#EAF2F8;
  --text-2:#A9BACB;
  --text-3:#6C8199;
  --line:rgba(255,255,255,.10);
  --ok:#35C46A;
  --warn:#F5A524;
  --danger:#E4573D;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 0 0 1px rgba(255,255,255,.06) inset, 0 18px 40px -20px rgba(0,0,0,.8);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(900px 520px at 10% -6%, rgba(31,182,166,.08), transparent 62%),
    radial-gradient(820px 480px at 94% 4%, rgba(245,165,36,.06), transparent 64%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,auto,100% 44px,44px 100%;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit}
::selection{background:rgba(31,182,166,.35);color:#fff}
.container{width:100%;max-width:1200px !important;margin:0 auto;padding-left:24px;padding-right:24px}
h1,h2,h3{font-weight:700;letter-spacing:.01em;line-height:1.35;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

/* ---------- 按钮 ---------- */
.btn{
  border-radius:var(--radius-sm);
  font-weight:600;
  font-size:15px;
  padding:12px 24px;
  border:1px solid transparent;
  transition:transform .18s ease-out, box-shadow .18s ease-out, background-color .18s ease-out, color .18s ease-out, border-color .18s ease-out;
}
.btn-glow{
  background-image:linear-gradient(180deg,var(--brand-hi),var(--brand));
  color:#04231F;
  box-shadow:0 10px 30px -10px rgba(31,182,166,.55);
}
.btn-glow:hover,.btn-glow:focus{
  color:#04231F;
  transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:0 16px 38px -10px rgba(31,182,166,.7);
}
.btn-glow:active{transform:translateY(0);box-shadow:0 8px 20px -10px rgba(31,182,166,.55)}
.btn-ghost{
  background-color:transparent;
  border-color:rgba(255,255,255,.22);
  color:var(--text-1);
}
.btn-ghost:hover{background-color:rgba(255,255,255,.08);border-color:rgba(255,255,255,.36);color:var(--text-1)}
.btn:focus-visible{outline:2px solid var(--brand-hi);outline-offset:2px;box-shadow:none}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  border-bottom:1px solid transparent;
  transition:background-color .24s ease-out, border-color .24s ease-out, backdrop-filter .24s ease-out;
}
.site-header.scrolled{
  background-color:rgba(8,19,31,.80);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.01em}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  padding:4px 10px;border-radius:999px;
  background-image:linear-gradient(135deg,var(--brand),var(--brand-hi));
  color:#04201C;font-size:14px;font-weight:800;letter-spacing:.06em;
}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;white-space:nowrap}
.nav-link:hover{color:var(--text-1)}
.nav-link.active{color:var(--text-1);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:999px;background:var(--brand-hi);
}
.nav-cta{padding:9px 18px;font-size:14.5px;margin-left:-8px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background-color:rgba(255,255,255,.04);color:var(--text-1);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;padding:0;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background-color:currentColor}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:132px 0 68px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg, rgba(8,19,31,.86) 0%, rgba(8,19,31,.93) 58%, var(--bg-base) 100%);
}
.page-hero .container{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand-hi)}
.crumb .sep{color:rgba(255,255,255,.22)}
.crumb .now{color:var(--text-2)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-hi);
  border:1px solid rgba(31,182,166,.35);background-color:rgba(31,182,166,.08);
  border-radius:999px;padding:5px 14px;margin-bottom:18px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background-color:var(--brand-hi);display:inline-block}
.page-hero h1{font-size:clamp(28px,4vw,46px);line-height:1.25;max-width:900px}
.hero-sub{font-size:clamp(16px,1.6vw,19px);color:var(--text-2);max-width:760px;margin-top:20px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:52px;padding-top:26px;border-top:1px solid var(--line);
}
.hero-stats .num{font-size:28px;font-weight:700;color:var(--text-1);letter-spacing:.01em}
.hero-stats .num em{font-style:normal;color:var(--brand-hi);font-size:16px;margin-left:4px;font-weight:600}
.hero-stats .cap{font-size:13px;color:var(--text-3);margin-top:4px}

/* ---------- 板块通用 ---------- */
.section{padding:92px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.16em;color:var(--brand-hi);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.section-title{font-size:clamp(22px,2.4vw,32px);line-height:1.35}
.section-desc{color:var(--text-2);font-size:16px;margin-top:14px}

/* ---------- 筛选 + 卡片 ---------- */
.layout-split{display:grid;grid-template-columns:262px 1fr;gap:40px;align-items:start}
.filter-panel{
  position:sticky;top:92px;
  background-color:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 20px;
  box-shadow:var(--shadow);
}
.filter-panel h2{font-size:16px;margin-bottom:6px}
.filter-panel .hint{font-size:13px;color:var(--text-3);margin-bottom:16px}
.filter-btn{
  display:block;width:100%;text-align:left;cursor:pointer;
  background-color:transparent;border:1px solid transparent;border-radius:var(--radius-sm);
  color:var(--text-2);font-size:14.5px;padding:10px 14px;margin-bottom:6px;
  transition:background-color .18s ease-out, color .18s ease-out, border-color .18s ease-out;
}
.filter-btn:hover{background-color:rgba(255,255,255,.06);color:var(--text-1)}
.filter-btn.active{
  background-color:rgba(31,182,166,.12);
  border-color:rgba(31,182,166,.42);
  color:var(--brand-hi);font-weight:600;
}
.filter-btn:focus-visible{outline:2px solid var(--brand-hi);outline-offset:2px}
.filter-note{font-size:13px;color:var(--text-3);margin-top:14px;padding-top:14px;border-top:1px solid var(--line);line-height:1.7}

.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.entry-card{
  display:flex;flex-direction:column;height:100%;
  border:1px solid transparent;border-radius:var(--radius);
  padding:16px;
  background-image:linear-gradient(var(--bg-elev),var(--bg-elev)),
    linear-gradient(150deg, rgba(31,182,166,.38), rgba(255,255,255,.06) 42%, rgba(245,165,36,.24));
  background-origin:border-box;
  background-clip:padding-box,border-box;
  transition:transform .2s ease-out, background-image .2s ease-out, box-shadow .2s ease-out;
}
.entry-card:hover{
  transform:translateY(-2px);
  background-image:linear-gradient(var(--bg-elev),var(--bg-elev)),
    linear-gradient(150deg, rgba(56,214,196,.62), rgba(255,255,255,.10) 45%, rgba(245,165,36,.40));
  box-shadow:0 20px 42px -24px rgba(0,0,0,.9);
}
.card-media{
  position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;border-radius:12px;
  background-image:linear-gradient(140deg, rgba(31,182,166,.22), rgba(10,24,38,.9));
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.entry-card:hover .card-media img{transform:scale(1.03)}
.card-body{display:flex;flex-direction:column;flex:1;padding:18px 4px 4px}
.badge-tag{
  display:inline-block;font-size:12px;line-height:1;
  padding:6px 11px;border-radius:999px;
  border:1px solid rgba(31,182,166,.36);
  background-color:rgba(31,182,166,.10);
  color:var(--brand-hi);margin-bottom:12px;
}
.badge-tag.warm{border-color:rgba(245,165,36,.38);background-color:rgba(245,165,36,.10);color:var(--accent)}
.badge-tag.cool{border-color:rgba(255,255,255,.20);background-color:rgba(255,255,255,.06);color:var(--text-2)}
.card-body h3{font-size:18px;line-height:1.5;margin-bottom:10px}
.card-body p{font-size:14px;color:var(--text-2);line-height:1.8}
.point-list{margin-top:14px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.14)}
.point-list li{position:relative;font-size:13.5px;color:var(--text-3);padding-left:16px;margin-bottom:6px}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background-color:rgba(31,182,166,.75);
}
.card-foot{margin-top:auto;padding-top:16px;font-size:13.5px;color:var(--brand-hi);font-weight:600;display:flex;align-items:center;gap:6px}
.card-foot svg{transition:transform .2s ease-out}
.entry-card:hover .card-foot svg{transform:translateX(3px)}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-step{position:relative;padding-right:8px}
.flow-step::after{
  content:"";position:absolute;top:16px;left:48px;right:-20px;height:1px;
  background-image:repeating-linear-gradient(90deg, rgba(255,255,255,.22) 0 6px, transparent 6px 12px);
}
.flow-step:last-child::after{display:none}
.step-num{
  width:32px;height:32px;border-radius:50%;
  border:1px solid rgba(31,182,166,.6);background-color:rgba(31,182,166,.09);
  color:var(--brand-hi);font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.flow-step h3{font-size:18px;margin-bottom:10px}
.flow-step p{font-size:14px;color:var(--text-2);line-height:1.8}
.flow-step .tip{font-size:12.5px;color:var(--text-3);margin-top:10px;display:block}

/* ---------- 图文两栏 ---------- */
.split-media{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.media-frame{
  position:relative;width:100%;aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius);
  border:1px solid var(--line);
  background-image:linear-gradient(140deg, rgba(31,182,166,.20), rgba(10,24,38,.92));
  box-shadow:var(--shadow);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.check-list li{
  display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);
}
.check-list li:first-child{padding-top:0}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-idx{
  flex:0 0 26px;height:26px;border-radius:8px;
  border:1px solid rgba(255,255,255,.18);background-color:rgba(255,255,255,.05);
  color:var(--brand-hi);font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-top:4px;
}
.check-list h3{font-size:16px;margin-bottom:6px}
.check-list p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- 三列说明条（无卡片边框） ---------- */
.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.audience-grid .item{padding-left:20px;border-left:1px solid var(--line)}
.audience-grid h3{font-size:17px;margin-bottom:10px;color:var(--text-1)}
.audience-grid p{font-size:14px;color:var(--text-2);line-height:1.82}
.audience-grid .mark{display:block;font-size:12.5px;color:var(--brand-hi);letter-spacing:.12em;margin-bottom:10px;font-weight:600}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-aside p{color:var(--text-2);font-size:15px;margin-top:14px}
.faq-aside .btn{margin-top:24px}
.accordion-item{
  background-color:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:14px;overflow:hidden;margin-bottom:12px;
}
.accordion-button{
  background-color:transparent;color:var(--text-1);
  font-size:16.5px;font-weight:600;line-height:1.6;
  padding:18px 20px;display:flex;align-items:center;gap:16px;
  border-left:3px solid transparent;
}
.accordion-button:not(.collapsed){
  background-color:var(--glass);
  color:var(--brand-hi);
  border-left-color:var(--brand);
  box-shadow:none;
}
.accordion-button:focus{box-shadow:none;border-color:transparent;border-left-color:var(--brand)}
.accordion-button:focus-visible{outline:2px solid var(--brand-hi);outline-offset:-2px}
.accordion-button::after{display:none}
.pm{margin-left:auto;width:24px;text-align:center;font-size:22px;line-height:1;color:var(--brand-hi);flex:0 0 24px}
.pm::before{content:"+"}
.accordion-button:not(.collapsed) .pm::before{content:"−"}
.accordion-body{
  padding:4px 20px 22px 39px;
  font-size:14px;line-height:1.85;color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line);
  padding:48px;
  background-image:
    radial-gradient(620px 320px at 10% 0%, rgba(31,182,166,.22), transparent 62%),
    radial-gradient(520px 300px at 96% 100%, rgba(245,165,36,.10), transparent 60%),
    linear-gradient(160deg,#0C1C2C,#0A1826);
  display:grid;grid-template-columns:8fr 4fr;gap:40px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px)}
.cta-band p{color:var(--text-2);font-size:15px;margin-top:14px;max-width:620px}
.cta-band .btn{margin-top:28px}
.assure li{font-size:14px;color:var(--text-2);padding:12px 0;border-bottom:1px solid var(--line);display:flex;gap:10px;align-items:flex-start}
.assure li:last-child{border-bottom:0}
.assure li i{width:6px;height:6px;border-radius:50%;background-color:var(--brand-hi);margin-top:10px;flex:0 0 6px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;padding-top:72px;
  border-top:1px solid var(--line);
  background-image:linear-gradient(180deg, rgba(14,29,46,.6), rgba(8,19,31,0));
}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;margin-bottom:16px}
.footer-about{font-size:14px;color:var(--text-2);line-height:1.85;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--text-1);margin-bottom:16px}
.footer-col ul li{margin-bottom:11px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand-hi)}
.footer-bottom{
  margin-top:56px;padding:22px 0 32px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .layout-split{grid-template-columns:1fr;gap:32px}
  .filter-panel{position:static}
  .filter-panel .filter-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
  .filter-btn{width:auto;margin-bottom:0;padding:9px 16px;border-color:var(--line)}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .split-media{gap:36px}
}
@media (max-width:991.98px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;left:0;right:0;top:68px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:16px 24px 40px;
    background-color:rgba(14,29,46,.97);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-top:1px solid var(--line);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .2s ease-out, transform .2s ease-out, visibility .2s;
    overflow-y:auto;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:translateY(0)}
  .main-nav .nav-link{width:100%;line-height:48px;font-size:16px;border-bottom:1px solid var(--line)}
  .main-nav .nav-link.active::after{display:none}
  .nav-cta{width:100%;justify-content:center;margin:20px 0 0;padding:13px 18px;font-size:15px}
  body.nav-locked{overflow:hidden}
  .page-hero{padding:112px 0 56px}
  .section{padding:72px 0}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .flow-step::after{display:none}
  .split-media{grid-template-columns:1fr;gap:32px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:36px 28px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px}
  .hero-stats{grid-template-columns:1fr;gap:16px;padding-top:22px}
  .hero-stats .num{font-size:24px}
  .card-grid{grid-template-columns:1fr}
  .audience-grid{grid-template-columns:1fr;gap:24px}
  .flow-grid{grid-template-columns:1fr}
  .section{padding:60px 0}
  .section-head{margin-bottom:32px}
  .site-footer{margin-top:64px;padding-top:56px}
}
@media (max-width:575.98px){
  .header-inner{height:56px}
  .brand{font-size:16px}
  .brand-mark{font-size:13px;padding:3px 8px}
  .main-nav{top:56px}
  .hero-actions .btn{width:100%;justify-content:center;text-align:center}
  .page-hero{padding:100px 0 48px}
  .cta-band{padding:30px 20px}
  .footer-grid{grid-template-columns:1fr}
  .accordion-button{font-size:15.5px;padding:16px 16px}
  .accordion-body{padding:2px 16px 20px 35px}
}

/* roulang page: category2 */
:root{
  --bg-base:#08131F;
  --bg-elev:#0E1D2E;
  --bg-deep:#050D16;
  --glass:rgba(255,255,255,.06);
  --brand:#1FB6A6;
  --brand-hi:#38D6C4;
  --accent:#F5A524;
  --text-1:#EAF2F8;
  --text-2:#A9BACB;
  --text-3:#6C8199;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --ok:#35C46A;
  --warn:#F5A524;
  --danger:#E4573D;
  --r-hero:20px;
  --r-card:16px;
  --r-btn:10px;
  --shadow-card:0 0 0 1px rgba(255,255,255,.06) inset, 0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-glow:0 10px 30px -10px rgba(31,182,166,.55);
  --s-1:4px; --s-2:8px; --s-3:12px; --s-4:16px; --s-5:24px; --s-6:32px; --s-7:48px; --s-8:64px; --s-9:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(circle at 12% 4%, rgba(31,182,166,.08), transparent 42%),
    radial-gradient(circle at 88% 22%, rgba(245,165,36,.06), transparent 40%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto, auto, 64px 64px, 64px 64px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-hi);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:#fff;}
ul{list-style:none;padding:0;margin:0;}
h1,h2,h3,h4{font-weight:700;letter-spacing:.01em;margin:0;line-height:1.3;}
h1{font-size:clamp(28px,4vw,46px);line-height:1.25;}
h2{font-size:clamp(22px,2.4vw,32px);line-height:1.35;}
h3{font-size:19px;}
p{margin:0 0 1em;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-head{margin-bottom:48px;max-width:760px;}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--brand-hi);text-transform:uppercase;margin-bottom:12px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;margin:0;}
.muted{color:var(--text-2);}
.tiny{font-size:13px;color:var(--text-3);}
hr.sep{border:0;border-top:1px solid var(--line);margin:0;}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  border-bottom:1px solid transparent;
  transition:background-color .22s ease-out, border-color .22s ease-out, backdrop-filter .22s ease-out;
}
.site-header.scrolled{
  background:rgba(8,19,31,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--text-1);letter-spacing:.01em;}
.brand:hover{color:var(--text-1);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:46px;height:30px;padding:0 10px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand),#13857a);
  color:#04140f;font-size:13px;font-weight:800;letter-spacing:.06em;
  box-shadow:0 8px 20px -12px rgba(31,182,166,.9);
}
.brand-text{font-size:18px;}
.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav .nav-link{
  position:relative;padding:6px 0;font-size:15px;color:var(--text-2);
  background:none;border:0;border-radius:0;transition:color .18s ease-out;
}
.main-nav .nav-link:hover{color:var(--text-1);}
.main-nav .nav-link.active{color:#fff;}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-hi),rgba(31,182,166,.2));
}
.nav-cta{margin-left:20px;padding:9px 20px;font-size:14px;}
.nav-toggle{
  display:none;width:42px;height:38px;border-radius:10px;
  border:1px solid var(--line);background:var(--glass);color:var(--text-1);
  align-items:center;justify-content:center;font-size:16px;cursor:pointer;
}
.nav-toggle:focus-visible{outline:2px solid var(--brand-hi);outline-offset:2px;}

/* ===== Buttons ===== */
.btn{border-radius:var(--r-btn);font-weight:600;letter-spacing:.01em;transition:transform .18s ease-out, box-shadow .18s ease-out, background-color .18s ease-out, color .18s ease-out, border-color .18s ease-out;}
.btn-glow{
  background:linear-gradient(180deg,var(--brand-hi),var(--brand));
  color:#04140f;border:0;padding:13px 28px;font-size:15px;
  box-shadow:var(--shadow-glow);
}
.btn-glow:hover,.btn-glow:focus{background:linear-gradient(180deg,#4ae2d0,#25c2b1);color:#04140f;transform:translateY(-1px);box-shadow:0 16px 36px -12px rgba(31,182,166,.75);}
.btn-glow:active{transform:translateY(0);box-shadow:0 6px 18px -10px rgba(31,182,166,.6);}
.btn-ghost{
  background:transparent;color:var(--text-1);border:1px solid var(--line-strong);
  padding:12px 26px;font-size:15px;
}
.btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff;border-color:var(--line-strong);transform:translateY(-1px);}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;}
.btn:focus-visible,.nav-toggle:focus-visible,a:focus-visible{outline:2px solid var(--brand-hi);outline-offset:2px;}

/* ===== Hero ===== */
.page-hero{position:relative;overflow:hidden;padding:96px 0 64px;isolation:isolate;}
.page-hero .hero-bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:.30;z-index:-2;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(8,19,31,.55) 0%,rgba(8,19,31,.86) 62%,var(--bg-base) 100%);
}
.hero-inner{max-width:860px;}
.breadcrumb-line{font-size:13px;color:var(--text-3);margin-bottom:22px;}
.breadcrumb-line a{color:var(--text-3);}
.breadcrumb-line a:hover{color:var(--brand-hi);}
.breadcrumb-line span.sep{margin:0 8px;color:var(--line-strong);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(31,182,166,.12);color:var(--brand-hi);
  border:1px solid rgba(31,182,166,.32);margin-bottom:20px;
}
.hero-badge i{font-size:11px;}
.page-hero h1{margin-bottom:18px;}
.page-hero h1 .hl{
  background:linear-gradient(180deg,transparent 62%,rgba(31,182,166,.35) 62%);
  padding:0 2px;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:660px;margin-bottom:32px;}

/* ===== Stat bar ===== */
.stat-bar{margin-top:-28px;padding-bottom:8px;}
.stat-bar-inner{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:linear-gradient(180deg,rgba(14,29,46,.96),rgba(11,24,38,.96));
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.stat-item{padding:26px 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-num{font-size:28px;font-weight:800;color:var(--brand-hi);line-height:1.1;letter-spacing:.01em;}
.stat-num small{font-size:15px;color:var(--text-2);font-weight:600;margin-left:6px;}
.stat-desc{font-size:13px;color:var(--text-3);margin-top:6px;}

/* ===== Big two-column cards ===== */
.card-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.flow-card{
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(16,32,50,.9),rgba(10,22,36,.96));
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .2s ease-out, border-color .2s ease-out;
}
.flow-card:hover{transform:translateY(-2px);border-color:rgba(31,182,166,.4);}
.flow-media{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,#122b40,#0b1a2b);overflow:hidden;}
.flow-media img{width:100%;height:100%;object-fit:cover;opacity:.88;transition:transform .3s ease-out;}
.flow-card:hover .flow-media img{transform:scale(1.03);}
.flow-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,19,31,0) 40%,rgba(8,19,31,.85) 100%);}
.flow-tag{
  position:absolute;left:18px;bottom:16px;z-index:2;
  font-size:12px;padding:5px 12px;border-radius:999px;
  background:rgba(8,19,31,.72);border:1px solid rgba(31,182,166,.4);color:var(--brand-hi);
}
.flow-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1;}
.flow-body h3{margin-bottom:12px;}
.flow-body > p{color:var(--text-2);font-size:15px;margin-bottom:18px;}
.flow-points{display:grid;gap:10px;margin-bottom:22px;}
.flow-points li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;}
.flow-points li i{color:var(--brand);font-size:13px;margin-top:5px;flex:0 0 auto;}
.flow-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px solid var(--line);}
.flow-foot .meta{font-size:13px;color:var(--text-3);}
.flow-link{font-size:14px;font-weight:600;color:var(--brand-hi);display:inline-flex;align-items:center;gap:8px;}
.flow-link i{transition:transform .18s ease-out;}
.flow-link:hover i{transform:translateX(3px);}

/* ===== Checklist section ===== */
.check-wrap{display:grid;grid-template-columns:6fr 5fr;gap:48px;align-items:start;}
.check-copy p{color:var(--text-2);}
.check-list{display:grid;gap:16px;}
.check-item{
  display:flex;gap:16px;padding:20px 22px;
  background:linear-gradient(180deg,rgba(16,32,50,.86),rgba(10,22,36,.92));
  border:1px solid var(--line);border-radius:var(--r-card);
}
.check-item .ico{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(31,182,166,.14);color:var(--brand-hi);font-size:14px;
}
.check-item h4{font-size:15px;margin-bottom:6px;}
.check-item p{font-size:14px;color:var(--text-2);margin:0;}

/* ===== Stage rows ===== */
.stage-list{border-top:1px solid var(--line);}
.stage-row{
  display:grid;grid-template-columns:180px 1fr 200px;gap:24px;align-items:center;
  padding:24px 8px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease-out;
}
.stage-row:hover{background:rgba(255,255,255,.03);}
.stage-key{display:flex;align-items:center;gap:12px;font-size:15px;font-weight:600;}
.stage-key .dot{width:9px;height:9px;border-radius:50%;background:var(--brand-hi);box-shadow:0 0 0 4px rgba(31,182,166,.14);}
.stage-desc{font-size:14px;color:var(--text-2);}
.stage-state{font-size:13px;color:var(--text-3);text-align:right;}
.stage-state b{color:var(--ok);font-weight:600;}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion-item{
  background:linear-gradient(180deg,rgba(16,32,50,.86),rgba(10,22,36,.92));
  border:1px solid var(--line);border-radius:var(--r-card) !important;
  margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  background:transparent;color:var(--text-1);font-size:16px;font-weight:600;
  padding:20px 22px;box-shadow:none !important;
}
.accordion-button:not(.collapsed){color:var(--brand-hi);background:var(--glass);}
.accordion-button::after{
  content:"+";font-family:var(--font-cn);font-size:20px;font-weight:400;
  background-image:none !important;width:24px;height:24px;line-height:20px;text-align:center;
  color:var(--brand-hi);transform:none;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:none;}
.accordion-button:focus{outline:2px solid var(--brand-hi);outline-offset:-2px;}
.accordion-body{
  padding:0 22px 22px 22px;font-size:14px;line-height:1.8;color:var(--text-2);
  border-left:3px solid transparent;
}
.accordion-collapse.show .accordion-body{border-left-color:var(--brand);}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  background:linear-gradient(120deg,#0B1D2E 0%,#0A2434 55%,#0C2E33 100%);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  padding:56px 48px;
}
.cta-band::before{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,182,166,.22),transparent 66%);
}
.cta-band-inner{position:relative;display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;}
.cta-band h2{margin-bottom:14px;}
.cta-band p{color:var(--text-2);margin-bottom:26px;max-width:560px;}
.cta-assure{display:grid;gap:12px;}
.cta-assure li{display:flex;gap:10px;font-size:14px;color:var(--text-2);}
.cta-assure i{color:var(--brand-hi);font-size:13px;margin-top:5px;}

/* ===== Footer ===== */
.site-footer{border-top:1px solid var(--line);background:rgba(5,13,22,.72);padding:64px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text-1);margin-bottom:14px;}
.footer-about{font-size:14px;color:var(--text-2);max-width:320px;line-height:1.8;}
.footer-col h4{font-size:14px;font-weight:600;letter-spacing:.08em;color:var(--text-1);margin-bottom:16px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--brand-hi);}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ===== Responsive ===== */
@media (max-width:1199.98px){
  .stage-row{grid-template-columns:160px 1fr 170px;}
  .cta-band{padding:48px 36px;}
}
@media (max-width:991.98px){
  .nav-toggle{display:inline-flex;}
  .nav-collapse{
    position:fixed;left:0;right:0;top:56px;bottom:0;
    background:rgba(14,29,46,.97);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    border-top:1px solid var(--line);
    padding:20px 24px 40px;overflow-y:auto;
    transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:opacity .2s ease-out, transform .2s ease-out, visibility .2s;
  }
  .nav-collapse.open{transform:translateY(0);opacity:1;visibility:visible;}
  .main-nav{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav .nav-link{line-height:48px;font-size:16px;border-bottom:1px solid var(--line);}
  .main-nav .nav-link.active::after{display:none;}
  .main-nav .nav-link.active{color:var(--brand-hi);}
  .nav-cta{margin:20px 0 0;justify-content:center;display:inline-flex;}
  .header-inner{height:56px;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:36px;}
  .card-grid-2{grid-template-columns:1fr;gap:22px;}
  .check-wrap{grid-template-columns:1fr;gap:30px;}
  .stat-bar-inner{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .cta-band-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stage-row{grid-template-columns:1fr;gap:8px;padding:20px 4px;}
  .stage-state{text-align:left;}
  .page-hero{padding:64px 0 48px;}
  .site-footer{margin-top:64px;}
}
@media (max-width:575.98px){
  .container{padding:0 18px;}
  .stat-bar-inner{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:0;}
  .cta-band{padding:34px 22px;border-radius:16px;}
  .btn-glow,.btn-ghost{width:100%;justify-content:center;text-align:center;}
  .footer-grid{grid-template-columns:1fr;}
  .flow-body{padding:22px 20px 24px;}
}

/* roulang page: category3 */
:root{
  --bg-base:#08131F;
  --bg-elev:#0E1D2E;
  --bg-soft:#0B1725;
  --glass:rgba(255,255,255,.06);
  --brand:#1FB6A6;
  --brand-hi:#38D6C4;
  --accent:#F5A524;
  --text-1:#EAF2F8;
  --text-2:#A9BACB;
  --text-3:#6C8199;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --ok:#35C46A;
  --warn:#F5A524;
  --danger:#E4573D;
  --r-hero:20px;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px; --sp-10:120px;
  --shadow-card:0 0 0 1px rgba(255,255,255,.06) inset, 0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-glow:0 10px 30px -10px rgba(31,182,166,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(560px 360px at 12% -6%, rgba(31,182,166,.08), transparent 68%),
    radial-gradient(620px 420px at 92% 8%, rgba(245,165,36,.06), transparent 70%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed,fixed,scroll,scroll;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.menu-open{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--text-1);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-hi);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.sec-head{margin-bottom:40px;max-width:760px;}
.sec-head h2{font-size:clamp(22px,2.4vw,32px);line-height:1.35;}
.sec-head p{color:var(--text-2);font-size:15px;margin-top:12px;margin-bottom:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-hi);font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand-hi);border-radius:2px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  height:68px;display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,19,31,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:inline-flex;align-items:baseline;gap:8px;font-weight:700;font-size:18px;letter-spacing:.01em;white-space:nowrap;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  padding:3px 9px;border-radius:8px;font-size:15px;font-weight:800;letter-spacing:.06em;
  color:#04201C;background:linear-gradient(180deg,var(--brand-hi),var(--brand));
  box-shadow:var(--shadow-glow);
}
.brand-text{color:var(--text-1);}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--brand-hi);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{transform:scaleX(1);}
.nav-cta{margin-left:-8px;font-size:14px;padding:9px 18px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .2s var(--ease),opacity .2s var(--ease);}
body.menu-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.menu-open .nav-toggle span:nth-child(2){opacity:0;}
body.menu-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Buttons ---------- */
.btn{border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:13px 26px;border:1px solid transparent;transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);}
.btn:focus-visible{outline:2px solid var(--brand-hi);outline-offset:3px;box-shadow:none;}
.btn-glow{
  color:#04201C;
  background:linear-gradient(180deg,var(--brand-hi),var(--brand));
  box-shadow:var(--shadow-glow);
}
.btn-glow:hover{background:linear-gradient(180deg,#48e2cf,#25c4b2);color:#04201C;transform:translateY(-1px);box-shadow:0 14px 36px -10px rgba(31,182,166,.7);}
.btn-glow:active{transform:translateY(0);box-shadow:0 8px 20px -12px rgba(31,182,166,.6);}
.btn-ghost{
  color:var(--text-1);background:transparent;border-color:var(--line-strong);
}
.btn-ghost:hover{background:rgba(255,255,255,.08);color:var(--text-1);border-color:rgba(255,255,255,.3);transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.link-arrow{color:var(--brand-hi);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-arrow::after{content:"→";transition:transform .18s var(--ease);}
.link-arrow:hover{color:#5ee8d6;}
.link-arrow:hover::after{transform:translateX(4px);}

/* ---------- Breadcrumb ---------- */
.crumb{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:22px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand-hi);}
.crumb span.sep{color:rgba(255,255,255,.2);}
.crumb .now{color:var(--text-2);}

/* ---------- Category hero ---------- */
.cat-hero{padding:56px 0 64px;position:relative;}
.cat-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.cat-hero h1{font-size:clamp(28px,4vw,46px);line-height:1.25;margin-bottom:18px;}
.cat-hero .lede{font-size:17px;color:var(--text-2);max-width:600px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--text-2);padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-hi);}
.hero-visual{
  position:relative;border-radius:var(--r-hero);overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(31,182,166,.16),rgba(8,19,31,.9)),
             url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  aspect-ratio:21/13;
  box-shadow:var(--shadow-card);
  display:flex;align-items:flex-end;
}
.hero-visual .glass-panel{
  width:100%;padding:20px 22px;
  background:rgba(8,19,31,.55);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:10px;
}
.status-line{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);}
.status-line .dot{width:7px;height:7px;border-radius:50%;flex:0 0 auto;}
.dot-ok{background:var(--ok);box-shadow:0 0 0 4px rgba(53,196,106,.16);}
.dot-warn{background:var(--warn);box-shadow:0 0 0 4px rgba(245,165,36,.16);}
.dot-soft{background:var(--brand-hi);box-shadow:0 0 0 4px rgba(31,182,166,.16);}

/* ---------- Metric strip ---------- */
.metric-strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-top:56px;padding:26px 0;
}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.metric{padding:0 24px;border-left:1px solid var(--line);}
.metric:first-child{border-left:none;padding-left:0;}
.metric b{display:block;font-size:28px;font-weight:700;letter-spacing:.01em;line-height:1.15;color:var(--text-1);}
.metric b em{font-style:normal;font-size:15px;color:var(--text-3);margin-left:4px;font-weight:500;}
.metric span{display:block;font-size:13px;color:var(--text-3);margin-top:6px;}

/* ---------- Zigzag rows ---------- */
.zig-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;
  border-bottom:1px solid var(--line);
}
.zig-row:last-child{border-bottom:none;padding-bottom:0;}
.zig-row:first-child{padding-top:0;}
.zig-row.reverse .zig-media{order:2;}
.zig-media{
  border-radius:var(--r-card);overflow:hidden;position:relative;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:16/10;background:linear-gradient(140deg,rgba(31,182,166,.22),rgba(14,29,46,.9));
}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.zig-row:hover .zig-media img{transform:scale(1.03);}
.zig-body .tag{
  display:inline-block;font-size:12px;letter-spacing:.08em;font-weight:600;
  color:var(--brand-hi);background:rgba(31,182,166,.12);
  border:1px solid rgba(31,182,166,.28);
  padding:5px 12px;border-radius:var(--r-pill);margin-bottom:16px;
}
.zig-body h3{font-size:20px;margin-bottom:14px;line-height:1.4;}
.zig-body p{color:var(--text-2);font-size:15px;margin-bottom:18px;}
.tick-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px;}
.tick-list li{position:relative;padding-left:26px;font-size:14px;color:var(--text-2);}
.tick-list li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:50%;
  background:rgba(31,182,166,.14);border:1px solid rgba(31,182,166,.45);
}
.tick-list li::after{
  content:"";position:absolute;left:4px;top:12px;width:6px;height:3px;
  border-left:1.6px solid var(--brand-hi);border-bottom:1.6px solid var(--brand-hi);
  transform:rotate(-45deg);
}

/* ---------- Steps ---------- */
.steps-wrap{position:relative;}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.step{
  position:relative;background:var(--bg-soft);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-2px);border-color:rgba(31,182,166,.4);}
.step-num{
  width:32px;height:32px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--brand-hi);
  border:1px solid rgba(31,182,166,.5);background:rgba(31,182,166,.1);margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:10px;}
.step p{font-size:14px;color:var(--text-2);margin-bottom:10px;}
.step .note{font-size:12px;color:var(--text-3);margin-bottom:0;}

/* ---------- Tag cloud band ---------- */
.band{
  background:var(--bg-elev);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.band-inner{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.band h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:12px;}
.band p{color:var(--text-2);font-size:15px;margin-bottom:0;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.tag-cloud span{
  font-size:14px;color:var(--text-2);padding:10px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.tag-cloud span:hover{border-color:rgba(31,182,166,.5);color:var(--text-1);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-grid h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:14px;}
.faq-grid .faq-note{color:var(--text-2);font-size:15px;}
.faq-acc .accordion-item{
  background:var(--bg-soft);border:1px solid var(--line);
  border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;
}
.faq-acc .accordion-button{
  background:transparent;color:var(--text-1);font-size:16px;font-weight:600;
  padding:20px 22px;box-shadow:none;border:0;line-height:1.6;
  transition:box-shadow .2s var(--ease),color .2s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--text-1);background:rgba(31,182,166,.06);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-acc .accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand);outline:none;}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .accordion-button::before{
  content:"+";display:inline-flex;align-items:center;justify-content:center;
  width:24px;height:24px;flex:0 0 24px;margin-right:14px;
  font-size:18px;font-weight:400;color:var(--brand-hi);line-height:1;
}
.faq-acc .accordion-button:not(.collapsed)::before{content:"−";}
.faq-acc .accordion-body{
  padding:4px 22px 22px 60px;font-size:14px;line-height:1.85;color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  border:1px solid var(--line);
  background:linear-gradient(140deg,#0B1A2A,#0E2436 60%,#0B1F2C);
  padding:56px;box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(420px 280px at 12% 20%, rgba(31,182,166,.28), transparent 70%),
             radial-gradient(360px 240px at 82% 90%, rgba(245,165,36,.16), transparent 72%);
  pointer-events:none;
}
.cta-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;line-height:1.35;}
.cta-band p{color:var(--text-2);font-size:15px;margin-bottom:24px;max-width:520px;}
.cta-list{display:flex;flex-direction:column;gap:12px;}
.cta-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);align-items:flex-start;}
.cta-list li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand-hi);margin-top:9px;flex:0 0 7px;}

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(8,19,31,.75);
  padding:64px 0 0;margin-top:96px;
}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:32px;}
.footer-brand{display:inline-flex;align-items:baseline;gap:8px;font-size:17px;font-weight:700;margin-bottom:14px;}
.footer-about{font-size:14px;color:var(--text-3);line-height:1.85;max-width:320px;margin:0;}
.footer-col h4{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--text-1);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--brand-hi);}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .cat-hero-grid{gap:36px;}
  .zig-row{gap:40px;}
  .cta-band{padding:48px 40px;}
}
@media (max-width:991.98px){
  .site-header{height:56px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;top:56px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;padding:16px 24px 40px;
    background:rgba(14,29,46,.96);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-top:1px solid var(--line);
    transform:translateY(-8px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
    overflow-y:auto;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}
  .nav-link{height:48px;display:flex;align-items:center;font-size:16px;border-bottom:1px solid var(--line);}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--brand-hi);}
  .nav-cta{margin:20px 0 0;justify-content:center;text-align:center;display:flex;}
  .section{padding:72px 0;}
  .cat-hero{padding:32px 0 48px;}
  .cat-hero-grid{grid-template-columns:1fr;}
  .hero-visual{aspect-ratio:16/9;max-width:560px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);row-gap:28px;}
  .metric{padding:0 20px;}
  .metric:nth-child(3){border-left:none;padding-left:0;}
  .zig-row{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .zig-row.reverse .zig-media{order:0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .band-inner{grid-template-columns:1fr;gap:28px;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .cta-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .site-footer{padding-top:48px;margin-top:72px;}
}
@media (max-width:575.98px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .cat-hero h1{font-size:26px;}
  .cat-hero .lede{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;text-align:center;justify-content:center;}
  .metric-grid{grid-template-columns:1fr;}
  .metric{border-left:none;padding-left:0;border-top:1px solid var(--line);padding-top:20px;}
  .metric:first-child{border-top:none;padding-top:0;}
  .steps{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;}
  .cta-band .btn{width:100%;text-align:center;justify-content:center;display:flex;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-acc .accordion-button{font-size:15px;padding:16px 16px;}
  .faq-acc .accordion-body{padding:2px 16px 18px 52px;}
  .zig-media{aspect-ratio:16/11;}
}

/* roulang page: category4 */
:root{
  --bg-base:#08131F;
  --bg-elev:#0E1D2E;
  --bg-elev-2:#122438;
  --glass:rgba(255,255,255,.06);
  --brand:#1FB6A6;
  --brand-hi:#38D6C4;
  --accent:#F5A524;
  --text-1:#EAF2F8;
  --text-2:#A9BACB;
  --text-3:#6C8199;
  --line:rgba(255,255,255,.10);
  --ok:#35C46A;
  --warn:#F5A524;
  --danger:#E4573D;
  --r-hero:20px;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-card:0 0 0 1px rgba(255,255,255,.06) inset, 0 18px 40px -20px rgba(0,0,0,.8);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg-base);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 620px at 10% -6%, rgba(31,182,166,.09), transparent 62%),
    radial-gradient(820px 540px at 94% 6%, rgba(245,165,36,.07), transparent 64%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:64px 64px;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-hi);outline-offset:2px;border-radius:6px}
::selection{background:rgba(31,182,166,.35);color:#fff}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;height:68px;display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .22s ease,border-color .22s ease,backdrop-filter .22s ease;
}
.site-header.scrolled{
  background:rgba(8,19,31,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--text-1);white-space:nowrap}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;height:34px;padding:0 11px;
  border-radius:10px;background:linear-gradient(180deg,var(--brand-hi),var(--brand));
  color:#04211D;font-size:15px;font-weight:800;letter-spacing:.05em;
  box-shadow:0 8px 22px -10px rgba(31,182,166,.75);
}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav .nav-link{
  position:relative;display:inline-block;padding:6px 0;font-size:15px;color:var(--text-2);
  transition:color .18s ease;
}
.main-nav .nav-link:hover{color:var(--text-1)}
.main-nav .nav-link.active{color:#fff}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-hi),var(--brand));
}
.main-nav .nav-cta{margin-left:20px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);align-items:center;justify-content:center;cursor:pointer;
  color:var(--text-1);font-size:18px;
}
.nav-toggle:hover{background:rgba(255,255,255,.08)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;border:1px solid transparent;
  cursor:pointer;text-decoration:none;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease,filter .18s ease;
}
.btn-glow{
  background:linear-gradient(180deg,var(--brand-hi),var(--brand));color:#04211D;
  box-shadow:0 10px 30px -10px rgba(31,182,166,.55);
}
.btn-glow:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 40px -12px rgba(31,182,166,.8);color:#04211D}
.btn-glow:active{transform:translateY(0);box-shadow:0 8px 20px -12px rgba(31,182,166,.6)}
.btn-ghost{
  background:transparent;border-color:rgba(255,255,255,.18);color:var(--text-1);
}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.32);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;z-index:1;padding:64px 0 56px;
  background-image:
    linear-gradient(100deg,rgba(8,19,31,.97) 0%,rgba(8,19,31,.86) 46%,rgba(8,19,31,.62) 100%),
    url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-3);transition:color .18s ease}
.crumb a:hover{color:var(--brand-hi)}
.crumb .sep{color:var(--text-3);opacity:.6}
.hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:center}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;color:var(--brand-hi);background:rgba(31,182,166,.1);
  border:1px solid rgba(31,182,166,.28);
}
.tag.warm{color:var(--accent);background:rgba(245,165,36,.1);border-color:rgba(245,165,36,.3)}
.cat-hero h1{
  font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;color:#fff;margin-bottom:18px;
}
.cat-hero h1 .hl{color:var(--brand-hi)}
.hero-sub{font-size:17px;color:var(--text-2);max-width:600px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-card{
  position:relative;border-radius:var(--r-hero);overflow:hidden;
  background:rgba(255,255,255,.06);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 30px 70px -30px rgba(0,0,0,.85);
}
.hero-card-media{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#123245,#0B1B2A)}
.hero-card-media img{width:100%;height:100%;object-fit:cover}
.status-list{padding:18px 20px 20px;display:grid;gap:10px}
.status-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--brand-hi);box-shadow:0 0 0 4px rgba(31,182,166,.16);flex:0 0 auto}
.dot.warm{background:var(--accent);box-shadow:0 0 0 4px rgba(245,165,36,.16)}
.dot.ok{background:var(--ok);box-shadow:0 0 0 4px rgba(53,196,106,.16)}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,1fr);margin-top:52px;padding-top:26px;
  border-top:1px solid var(--line);
}
.hero-metrics .m{padding-right:26px;border-right:1px solid var(--line)}
.hero-metrics .m:last-child{border-right:0;padding-right:0}
.hero-metrics .num{font-size:28px;font-weight:700;color:#fff;letter-spacing:.01em}
.hero-metrics .lbl{font-size:13px;color:var(--text-2)}

/* ---------- Sections ---------- */
.section{padding:96px 0;position:relative;z-index:1}
.section.tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.1em;
  color:var(--brand-hi);margin-bottom:14px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand-hi);opacity:.7}
.section-head h2{font-size:clamp(22px,2.4vw,32px);color:#fff;margin-bottom:14px}
.section-head p{font-size:15px;color:var(--text-2)}

/* ---------- Steps / timeline ---------- */
.cols-2{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.path{position:relative;padding-left:34px}
.path::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(31,182,166,.7),rgba(255,255,255,.07));
}
.path-item{position:relative;padding-bottom:30px}
.path-item:last-child{padding-bottom:0}
.path-item::before{
  content:"";position:absolute;left:-28px;top:8px;width:10px;height:10px;border-radius:50%;
  background:var(--bg-base);border:2px solid var(--brand-hi);
}
.path-item h3{font-size:18px;color:#fff;margin-bottom:8px}
.path-item p{font-size:14.5px;color:var(--text-2)}
.path-item .hint{display:block;margin-top:8px;font-size:12.5px;color:var(--text-3)}

/* ---------- Checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.check-item{
  display:flex;gap:12px;align-items:flex-start;padding:16px 18px;border-radius:14px;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--line);transition:border-color .18s ease,transform .18s ease;
}
.check-item:hover{border-color:rgba(31,182,166,.4);transform:translateY(-2px)}
.check-item i{color:var(--brand-hi);margin-top:4px;font-size:14px}
.check-item strong{display:block;font-size:15px;color:#fff;font-weight:600;margin-bottom:4px}
.check-item span{font-size:13.5px;color:var(--text-2);line-height:1.75}

/* ---------- Metrics ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric{
  padding:26px 22px;border-radius:var(--r-card);background:var(--bg-elev);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .18s ease,border-color .18s ease;
}
.metric:hover{transform:translateY(-2px);border-color:rgba(31,182,166,.35)}
.metric .num{display:block;font-size:28px;font-weight:700;color:#fff;margin-bottom:6px}
.metric .lbl{font-size:13px;color:var(--text-2);line-height:1.7}

/* ---------- FAQ rows ---------- */
.q-list{border-top:1px solid var(--line)}
.q-row{border-bottom:1px solid var(--line);transition:background .18s ease;position:relative}
.q-row:hover{background:rgba(255,255,255,.03)}
.q-row.is-open{background:linear-gradient(90deg,rgba(31,182,166,.08),rgba(255,255,255,0) 60%)}
.q-row.is-open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--brand-hi),var(--brand));
}
.q-head{
  width:100%;display:flex;align-items:center;gap:18px;padding:22px 22px 22px 20px;
  background:none;border:0;text-align:left;cursor:pointer;color:var(--text-1);
}
.q-index{font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--brand-hi);min-width:30px}
.q-title{flex:1;font-size:17px;font-weight:600;line-height:1.55}
.q-icon{
  flex:0 0 30px;height:30px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
  color:var(--brand-hi);transition:background .18s ease,transform .18s ease;
}
.q-head:hover .q-icon{background:rgba(31,182,166,.14)}
.q-body{padding:0 76px 26px 68px;font-size:15px;color:var(--text-2)}
.q-body p+p{margin-top:10px}
.q-row.is-open .q-title{color:#fff}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-hero);padding:52px 48px;
  background-image:
    linear-gradient(120deg,rgba(10,24,38,.94),rgba(10,24,38,.78) 60%,rgba(10,24,38,.62)),
    url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  border:1px solid rgba(255,255,255,.12);
}
.cta-band::before{
  content:"";position:absolute;width:560px;height:560px;right:-160px;top:-240px;
  background:radial-gradient(circle,rgba(31,182,166,.2),transparent 62%);pointer-events:none;
}
.cta-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);color:#fff;margin-bottom:16px}
.cta-copy p{font-size:15px;color:var(--text-2);max-width:520px}
.assurance{margin-top:26px;display:grid;gap:12px}
.assurance li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2)}
.assurance i{color:var(--brand-hi);margin-top:5px;font-size:13px}
.form-card{
  border-radius:var(--r-card);padding:28px;
  background:rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.12);
}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.form-control,.form-select{
  width:100%;min-height:46px;padding:10px 14px;border-radius:var(--r-btn);
  background:rgba(8,19,31,.72);border:1px solid var(--line);color:var(--text-1);
  font-size:14.5px;transition:border-color .18s ease,box-shadow .18s ease;
}
textarea.form-control{min-height:110px;resize:vertical;line-height:1.7}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,182,166,.16);
  background:rgba(8,19,31,.9);
}
.form-control::placeholder{color:var(--text-3)}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:12px}
.form-msg{
  display:none;margin-top:14px;padding:12px 14px;border-radius:10px;font-size:13.5px;
  color:var(--brand-hi);background:rgba(31,182,166,.1);border:1px solid rgba(31,182,166,.3);
}
.form-msg.show{display:block}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;z-index:1;margin-top:96px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,29,46,.55),rgba(8,19,31,.95));
}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;padding:64px 0 40px}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:#fff}
.footer-about{margin-top:14px;font-size:14px;color:var(--text-2);max-width:320px;line-height:1.8}
.footer-col h4{font-size:14px;font-weight:600;letter-spacing:.08em;color:var(--text-3);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2);transition:color .18s ease}
.footer-col a:hover{color:var(--brand-hi)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .section{padding:80px 0}
  .hero-grid{gap:36px}
}
@media (max-width:991.98px){
  .site-header{height:56px}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;left:0;right:0;top:56px;bottom:0;flex-direction:column;align-items:stretch;gap:0;
    padding:20px 24px 48px;background:rgba(12,26,42,.98);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    transform:translateY(-10px);opacity:0;pointer-events:none;overflow-y:auto;
    transition:opacity .2s ease,transform .2s ease;border-top:1px solid var(--line);
  }
  .main-nav.open{opacity:1;transform:none;pointer-events:auto}
  .main-nav .nav-link{padding:16px 4px;font-size:17px;border-bottom:1px solid var(--line);color:var(--text-1)}
  .main-nav .nav-link.active::after{display:none}
  .main-nav .nav-link.active{color:var(--brand-hi)}
  .main-nav .nav-cta{margin:24px 0 0;min-height:50px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-card{max-width:560px}
  .cols-2{grid-template-columns:1fr;gap:40px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:52px 0 32px}
  .footer-about{max-width:none}
  .q-body{padding:0 24px 24px 68px}
  .cta-band{padding:40px 28px}
}
@media (max-width:767.98px){
  .section{padding:60px 0}
  .cat-hero{padding:44px 0 40px}
  .hero-sub{font-size:16px}
  .hero-metrics{grid-template-columns:1fr;gap:18px;margin-top:38px;padding-top:22px}
  .hero-metrics .m{border-right:0;border-bottom:1px solid var(--line);padding:0 0 14px}
  .hero-metrics .m:last-child{border-bottom:0;padding-bottom:0}
  .check-grid{grid-template-columns:1fr}
  .q-head{padding:18px 16px;gap:12px}
  .q-title{font-size:15.5px}
  .q-body{padding:0 18px 22px 46px;font-size:14.5px}
  .q-index{min-width:24px}
  .cta-band{padding:32px 20px}
  .form-card{padding:22px 18px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575.98px){
  .shell{padding:0 18px}
  .brand{font-size:17px}
  .brand-mark{height:30px;font-size:14px;padding:0 9px}
  .hero-actions .btn{width:100%}
  .metric-grid{grid-template-columns:1fr}
  .section-head{margin-bottom:32px}
}