/* roulang page: index */
:root{
  --primary:#14507A;
  --primary-dark:#0C3552;
  --primary-light:#E3EDF5;
  --accent:#E07B39;
  --accent-light:#FBEDE1;
  --ink:#0F1B2A;
  --text-2:#46586B;
  --text-3:#7A8A9B;
  --line:#E2E8EF;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 8px 24px rgba(15,27,42,.06);
  --sh-2:0 14px 32px rgba(15,27,42,.12);
  --sh-3:0 20px 48px rgba(15,27,42,.16);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--primary-dark);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid rgba(20,80,122,.35);outline-offset:2px;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:#FFFFFF;}
.section-head{margin-bottom:44px;}
.section-head--row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:500;
  color:var(--primary);
  background:var(--primary-light);
  border-radius:999px;
  padding:4px 14px;
  margin-bottom:14px;
}
h1{font-size:44px;line-height:1.25;font-weight:700;letter-spacing:-.4px;}
h2{font-size:32px;line-height:1.3;font-weight:700;}
h3{font-size:22px;line-height:1.4;font-weight:600;}
.lead{font-size:17px;line-height:1.9;color:var(--text-2);}
.muted{color:var(--text-3);font-size:14px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:500;
  color:var(--primary);
}
.text-link svg{transition:transform .18s ease;}
.text-link:hover svg{transform:translateX(4px);}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:#104468;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
.btn-accent:hover{background:#cc6b2c;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline{background:transparent;color:var(--primary);border-color:rgba(20,80,122,.45);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--primary);}
.btn-ghost:hover{background:var(--primary-light);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}

/* header */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(15,27,42,.04);
}
.brand-row{height:68px;display:flex;align-items:center;}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;}
.logo{display:flex;align-items:center;gap:12px;}
.logo-mark{
  width:42px;height:42px;border-radius:12px;
  background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.2px;}
.logo-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.5px;}
.brand-actions{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:46px;width:260px;
  padding:0 14px;
  background:var(--bg);
  border:1px solid #D8E1EA;
  border-radius:var(--r-btn);
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(20,80,122,.12);}
.search-box input{
  width:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);font-family:inherit;
}
.search-box input::placeholder{color:var(--text-3);}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.channel-row{border-top:1px solid var(--line);background:#FBFCFE;}
.channel-list{display:flex;align-items:center;gap:28px;padding:0;}
.channel-link{
  display:inline-block;
  padding:13px 0;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  border-bottom:2px solid transparent;
}
.channel-link:hover{color:var(--primary);}
.channel-link.is-active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600;}

/* mobile drawer */
.mobile-drawer{
  display:none;
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:16px 24px 24px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .search-box{width:100%;margin-bottom:14px;}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:16px;}
.drawer-links a{
  padding:12px 12px;border-radius:10px;font-size:15px;color:var(--text-2);
}
.drawer-links a:hover{background:var(--bg);color:var(--primary);}
.drawer-links a.is-active{background:var(--primary-light);color:var(--primary);font-weight:600;}
.drawer-cta{display:flex;gap:12px;}
.drawer-cta .btn{flex:1;}

/* hero */
.hero{padding:64px 0 72px;background:linear-gradient(180deg,#FFFFFF 0%,#F6F8FB 100%);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;min-height:520px;}
.hero h1{margin-bottom:18px;}
.hero .lead{max-width:560px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-block;
  font-size:13px;font-weight:500;
  color:var(--primary);
  background:var(--primary-light);
  border-radius:999px;
  padding:5px 14px;
}
.tag--accent{color:#B75F26;background:var(--accent-light);}
.hero-visual{position:relative;}
.hero-visual img{width:100%;height:380px;object-fit:cover;border-radius:16px;}
.hero-badge{
  position:absolute;left:-16px;bottom:24px;
  background:#fff;border-radius:12px;
  padding:14px 18px;box-shadow:var(--sh-2);
  display:flex;align-items:center;gap:12px;
}
.hero-badge strong{font-size:22px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;}
.hero-badge span{font-size:13px;color:var(--text-2);}

/* trust bar */
.trust-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.trust-item{padding:28px 24px;text-align:center;border-right:1px solid var(--line);}
.trust-item:last-child{border-right:0;}
.trust-item b{
  display:block;font-size:30px;font-weight:700;color:var(--primary-dark);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;line-height:1.2;
}
.trust-item span{font-size:14px;color:var(--text-2);}

/* value */
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.value-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.value-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,80,122,.3);}
.value-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.value-item h3{font-size:18px;margin-bottom:8px;}
.value-item p{font-size:14px;color:var(--text-2);line-height:1.75;}

/* feature matrix */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.fcard{
  grid-column:span 3;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.fcard:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,80,122,.3);}
.fcard--lg{grid-column:span 6;}
.fcard--md{grid-column:span 3;}
.fcard--sm{grid-column:span 4;}
.fcard h3{margin-bottom:10px;}
.fcard p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:16px;}
.fcard .text-link{margin-top:auto;}
.fcard-media{margin:-24px -24px 20px;border-radius:var(--r-card) var(--r-card) 0 0;overflow:hidden;}
.fcard-media img{width:100%;height:180px;object-fit:cover;border-radius:0;}
.fcard--lg .fcard-media img{height:230px;}
.fcard-icon{
  width:42px;height:42px;border-radius:12px;background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.fcard--lg .fcard-icon{background:var(--accent-light);}

/* zigzag */
.zigzag{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;margin-bottom:56px;}
.zigzag:last-child{margin-bottom:0;}
.zigzag.reverse .zigzag-media{order:2;}
.zigzag-media img{width:100%;height:300px;object-fit:cover;border-radius:14px;box-shadow:var(--sh-1);}
.zigzag-body h3{margin:12px 0 12px;}
.zigzag-body p{color:var(--text-2);margin-bottom:18px;}

/* cases */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,80,122,.3);}
.case-card h3{font-size:19px;margin-bottom:8px;}
.case-result{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:18px;}
.case-metrics{display:flex;gap:20px;padding-top:18px;border-top:1px solid var(--line);}
.case-metrics b{display:block;font-size:22px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2;}
.case-metrics span{font-size:12px;color:var(--text-3);}
.quote-band{
  margin-top:32px;background:var(--primary-light);border-radius:var(--r-card);
  padding:28px 32px;display:flex;gap:18px;align-items:flex-start;
}
.quote-band p{font-size:16px;color:var(--primary-dark);line-height:1.9;}
.quote-band span{display:block;margin-top:8px;font-size:13px;color:var(--text-2);}

/* price */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;position:relative;
  transition:transform .18s ease,box-shadow .18s ease;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.price-card--rec{border:1px solid var(--primary);box-shadow:var(--sh-2);}
.price-badge{
  position:absolute;top:-13px;left:26px;
  background:var(--accent);color:#fff;
  font-size:12px;font-weight:600;letter-spacing:.5px;
  border-radius:999px;padding:4px 14px;
}
.price-card h3{font-size:19px;margin-bottom:6px;}
.price-card .price-desc{font-size:14px;color:var(--text-3);margin-bottom:20px;}
.price-num{font-size:32px;font-weight:700;color:var(--primary-dark);line-height:1.2;margin-bottom:4px;}
.price-num small{font-size:14px;font-weight:500;color:var(--text-3);margin-left:4px;}
.price-list{margin:22px 0 26px;display:flex;flex-direction:column;gap:12px;}
.price-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;}
.price-list svg{flex:0 0 auto;margin-top:5px;}
.price-card .btn{margin-top:auto;width:100%;}

/* news / cms */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,80,122,.3);}
.post-cover{display:block;background:var(--primary-light);}
.post-cover img{width:100%;height:196px;object-fit:cover;border-radius:0;}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-cat{
  align-self:flex-start;
  font-size:12px;font-weight:500;color:var(--primary);
  background:var(--primary-light);border-radius:999px;padding:3px 12px;margin-bottom:12px;
}
.post-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:10px;
}
.post-title a{color:inherit;}
.post-title a:hover{color:var(--primary);}
.post-excerpt{
  font-size:14px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:18px;
}
.post-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--text-3);padding-top:14px;border-top:1px solid var(--line);
}
.post-foot .text-link{font-size:13px;}
.empty-state{
  grid-column:1/-1;
  background:#fff;border:1px dashed #C9D6E2;border-radius:var(--r-card);
  padding:56px 24px;text-align:center;
}
.empty-state svg{margin:0 auto 14px;}
.empty-state p{font-size:15px;color:var(--text-2);}
.empty-state span{display:block;font-size:13px;color:var(--text-3);margin-top:6px;}

/* faq */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--primary);}
.faq-arrow{flex:0 0 auto;transition:transform .18s ease;color:var(--text-3);}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);color:var(--primary);}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-item.is-open .faq-a{max-height:280px;}
.faq-a p{padding:0 26px 22px;font-size:15px;color:var(--text-2);line-height:1.85;}

/* CTA band */
.cta-band{background:var(--primary-dark);color:#fff;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:56px 0;
}
.cta-inner h2{color:#fff;font-size:30px;margin-bottom:10px;}
.cta-inner p{color:#B9CFDF;font-size:15px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-actions .btn-outline{color:#fff;border-color:rgba(255,255,255,.55);}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

/* footer */
.site-footer{background:var(--primary-dark);color:#B9CFDF;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}
.footer-brand strong{display:block;font-size:18px;color:#fff;margin-bottom:8px;}
.footer-brand em{font-style:normal;font-size:12px;color:#8FB0C7;letter-spacing:.5px;display:block;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.9;color:#B9CFDF;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#B9CFDF;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#8FB0C7;flex-wrap:wrap;
}

/* responsive */
@media (max-width:1280px){
  :root{--max:1140px;}
}
@media (max-width:1023px){
  .brand-row{height:60px;}
  .search-box{display:none;}
  .brand-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .channel-list{overflow-x:auto;white-space:nowrap;gap:22px;-ms-overflow-style:none;scrollbar-width:none;}
  .channel-list::-webkit-scrollbar{display:none;}
  .section{padding:72px 0;}
  .hero{padding:44px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;min-height:auto;}
  .hero-visual img{height:300px;}
  .hero-badge{left:16px;bottom:16px;}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .trust-item:nth-child(2){border-right:0;}
  .trust-item:nth-child(1),.trust-item:nth-child(2){border-bottom:1px solid var(--line);}
  .value-grid{grid-template-columns:repeat(2,1fr);}
  .fcard--lg{grid-column:span 12;}
  .fcard--md{grid-column:span 6;}
  .fcard--sm{grid-column:span 6;}
  .zigzag{grid-template-columns:1fr;gap:28px;}
  .zigzag.reverse .zigzag-media{order:0;}
  .case-grid{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;padding:48px 0;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  h1{font-size:28px;letter-spacing:0;}
  h2{font-size:23px;}
  h3{font-size:19px;}
  .section{padding:48px 0;}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:12px;}
  .logo-text strong{font-size:16px;}
  .logo-text em{font-size:11px;}
  .hero-visual img{height:220px;}
  .hero-badge strong{font-size:18px;}
  .trust-item{padding:20px 12px;}
  .trust-item b{font-size:24px;}
  .value-grid{grid-template-columns:1fr;}
  .fcard--md,.fcard--sm{grid-column:span 12;}
  .case-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .faq-q{padding:18px;font-size:16px;}
  .faq-a p{padding:0 18px 18px;}
  .quote-band{flex-direction:column;padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .case-metrics{flex-wrap:wrap;gap:16px;}
  .btn{width:100%;}
  .hero-cta .btn,.drawer-cta .btn{width:100%;}
}

/* roulang page: article */
:root{
  --primary:#14507A;
  --primary-dark:#0C3552;
  --primary-light:#E3EDF5;
  --accent:#E07B39;
  --accent-light:#FBEDE1;
  --ink:#0F1B2A;
  --text-2:#46586B;
  --text-3:#7A8A9B;
  --line:#E2E8EF;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --danger:#C0392B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 8px 24px rgba(15,27,42,.06);
  --shadow-2:0 14px 32px rgba(15,27,42,.12);
  --shadow-3:0 20px 48px rgba(15,27,42,.16);
  --container:1200px;
  --gap:24px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;height:auto;display:block;background:var(--primary-light);}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(20,80,122,.28);border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;box-shadow:0 1px 0 rgba(15,27,42,.04);}
.brand-row{height:68px;border-bottom:1px solid var(--line);background:#fff;}
.brand-inner{height:100%;display:flex;align-items:center;gap:20px;}
.brand-logo{display:flex;align-items:baseline;gap:6px;text-decoration:none;flex-shrink:0;}
.brand-main{font-size:21px;font-weight:700;color:var(--primary-dark);letter-spacing:.5px;}
.brand-sub{font-size:13px;font-weight:600;color:var(--accent);letter-spacing:1px;}
.brand-search{
  margin-left:auto;
  position:relative;
  width:320px;
  max-width:38vw;
  height:46px;
  border:1px solid #D8E1EA;
  border-radius:var(--radius-btn);
  background:#F9FBFD;
  display:flex;
  align-items:center;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.brand-search:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(20,80,122,.12);}
.brand-search input{
  flex:1;height:100%;border:0;background:transparent;padding:0 12px 0 40px;
  color:var(--ink);font-size:14px;outline:none;
}
.brand-search input::placeholder{color:var(--text-3);}
.brand-search .search-icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--text-3);}
.brand-search button{
  width:60px;height:38px;margin-right:4px;border:0;border-radius:8px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .18s ease,transform .18s ease;
}
.brand-search button:hover{background:#10425f;}
.brand-search button:active{transform:translateY(1px);}
.brand-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary-dark);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary-dark);border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* channel row */
.channel-row{height:48px;background:#fff;border-bottom:1px solid var(--line);}
.channel-list{display:flex;align-items:stretch;gap:30px;height:48px;}
.channel-list li{display:flex;}
.channel-link{
  display:flex;align-items:center;height:48px;
  color:var(--text-2);font-size:15px;font-weight:500;
  border-bottom:2px solid transparent;padding:0 2px;
  white-space:nowrap;
}
.channel-link:hover{color:var(--primary);}
.channel-link.is-active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600;}

/* drawer */
.mobile-drawer{
  position:fixed;inset:0;background:#fff;z-index:80;padding:22px;
  overflow-y:auto;transform:translateY(-102%);transition:transform .26s ease;
}
.mobile-drawer.is-open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:20px;color:var(--primary-dark);line-height:1;}
.drawer-search{width:100%;max-width:none;margin:0 0 22px;}
.drawer-nav{border-top:1px solid var(--line);}
.drawer-nav li{border-bottom:1px solid var(--line);}
.drawer-nav a{display:block;padding:15px 2px;font-size:16px;color:var(--ink);font-weight:500;}
.drawer-nav a.is-active{color:var(--primary);font-weight:600;}
.drawer-cta{margin-top:24px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:#10425f;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{border-color:var(--primary);color:var(--primary);background:#fff;}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-cta{background:var(--accent);color:#fff;}
.btn-cta:hover{background:#c96a2c;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-cta:active{transform:translateY(0);box-shadow:none;}
.btn-block{width:100%;}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(20,80,122,.28);}

/* ---------- Page shell ---------- */
.page-main{padding-bottom:96px;}
.breadcrumb{padding:22px 0 0;font-size:13px;color:var(--text-3);}
.breadcrumb ol{display:flex;align-items:center;flex-wrap:wrap;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;min-width:0;}
.breadcrumb li+li::before{content:"/";color:#C3CFDA;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .current{color:var(--text-3);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- Article head ---------- */
.article-head{padding:26px 0 0;max-width:820px;margin:0 auto;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary-light);color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:.4px;
  padding:6px 14px;border-radius:999px;
}
.article-title{
  font-size:36px;line-height:1.32;font-weight:700;color:var(--ink);
  margin-top:18px;letter-spacing:-.2px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:18px;font-size:13px;color:var(--text-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta span+span::before{content:"";width:1px;height:12px;background:var(--line);margin-right:14px;}
.article-meta svg{width:14px;height:14px;color:var(--text-3);}
.article-divider{height:1px;background:var(--line);border:0;margin:26px auto 0;max-width:820px;}

/* ---------- Article body ---------- */
.article-body{
  max-width:820px;margin:0 auto;padding-top:30px;
  font-size:16px;line-height:1.9;color:#1B2938;word-wrap:break-word;
}
.article-body>*+*{margin-top:18px;}
.article-body p{margin:0;}
.article-body h2{
  font-size:24px;font-weight:700;line-height:1.4;color:var(--ink);
  border-left:3px solid var(--primary);padding-left:14px;
  margin-top:38px;margin-bottom:4px;
}
.article-body h3{font-size:20px;font-weight:600;line-height:1.5;color:var(--ink);margin-top:28px;margin-bottom:2px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin-top:22px;}
.article-body a{color:var(--primary);text-decoration:none;border-bottom:1px solid rgba(20,80,122,.3);}
.article-body a:hover{color:var(--primary-dark);border-bottom-color:var(--primary-dark);}
.article-body strong{font-weight:700;color:var(--ink);}
.article-body ul,.article-body ol{padding-left:22px;margin-top:18px;}
.article-body ul>li{list-style:none;position:relative;padding-left:16px;margin-top:10px;}
.article-body ul>li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--primary);}
.article-body ol{counter-reset:olist;}
.article-body ol>li{list-style:none;position:relative;padding-left:30px;margin-top:12px;counter-increment:olist;}
.article-body ol>li::before{
  content:counter(olist);position:absolute;left:0;top:4px;
  width:20px;height:20px;border-radius:50%;background:var(--primary-light);color:var(--primary);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;line-height:1;
}
.article-body blockquote{
  background:var(--primary-light);border-left:4px solid var(--primary);
  border-radius:0 12px 12px 0;padding:18px 22px;color:var(--text-2);font-size:15px;
}
.article-body blockquote p{margin:0;}
.article-body img{border-radius:var(--radius-img);margin:26px auto;box-shadow:var(--shadow-1);}
.article-body figure{margin:26px 0;}
.article-body figure img{margin:0 auto;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin-top:22px;border:1px solid var(--line);border-radius:12px;overflow:hidden;}
.article-body thead th{background:#F1F5F9;color:var(--ink);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body tbody tr:hover{background:#FAFCFE;}
.article-body hr{border:0;height:1px;background:var(--line);margin:30px 0;}
.article-body code{background:#F1F5F9;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--primary-dark);}

.empty-state{
  text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:56px 24px;box-shadow:var(--shadow-1);
}
.empty-state svg{width:52px;height:52px;color:#B7C7D6;margin:0 auto 16px;}
.empty-state h2{font-size:22px;border:0;padding:0;margin:0;}
.empty-state p{color:var(--text-2);margin-top:10px;font-size:15px;}
.empty-state .btn{margin-top:22px;}

/* ---------- Tags ---------- */
.tag-block{max-width:820px;margin:44px auto 0;padding-top:26px;border-top:1px solid var(--line);}
.tag-block h2{font-size:15px;font-weight:600;color:var(--text-2);margin-bottom:14px;letter-spacing:.3px;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:500;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.tag-pill:hover{background:var(--primary);color:#fff;transform:translateY(-1px);}

/* ---------- Related ---------- */
.section{padding:96px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;}
.section-head h2{font-size:28px;font-weight:700;color:var(--ink);letter-spacing:-.2px;}
.section-head p{color:var(--text-2);font-size:15px;margin-top:8px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);white-space:nowrap;}
.text-link svg{width:15px;height:15px;transition:transform .18s ease;}
.text-link:hover svg{transform:translateX(3px);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(20,80,122,.3);}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--primary-light);}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-badge{
  position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);
  color:var(--primary);font-size:12px;font-weight:600;padding:4px 12px;border-radius:12px;
  box-shadow:0 4px 12px rgba(15,27,42,.1);
}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-title{font-size:17px;font-weight:600;line-height:1.55;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card:hover .card-title{color:var(--primary);}
.card-text{font-size:14px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);padding-top:12px;border-top:1px solid var(--line);}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--primary-dark);border-radius:16px;padding:42px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;font-weight:700;color:#fff;line-height:1.4;}
.cta-band p{color:#A9C4DA;font-size:15px;margin-top:10px;max-width:640px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-actions .btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- Footer ---------- */
.site-footer{background:var(--primary-dark);color:#B9CFDF;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;}
.footer-brand strong{color:#fff;font-size:20px;display:block;letter-spacing:.4px;}
.footer-brand em{display:block;font-style:normal;font-size:13px;color:#8FB4CE;margin-top:8px;letter-spacing:1px;}
.footer-brand p{font-size:14px;line-height:1.85;color:#9FBBD1;margin-top:16px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#B9CFDF;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8FAEC6;
}

/* ---------- Responsive ---------- */
@media (max-width:1280px){
  .brand-search{width:280px;}
}
@media (max-width:1024px){
  .section{padding:64px 0;}
  .page-main{padding-bottom:64px;}
  .brand-search{display:none;}
  .brand-actions .btn-ghost{display:none;}
  .nav-toggle{display:flex;}
  .channel-list{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;gap:22px;}
  .channel-list::-webkit-scrollbar{display:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  .section{padding:48px 0;}
  .page-main{padding-bottom:48px;}
  .container{padding:0 18px;}
  .brand-row{height:56px;}
  .brand-main{font-size:18px;}
  .brand-sub{font-size:12px;}
  .article-title{font-size:27px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin-top:30px;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:23px;}
  .cta-band{padding:30px 24px;flex-direction:column;align-items:flex-start;}
  .cta-band h2{font-size:21px;}
  .breadcrumb .current{max-width:180px;}
  .article-meta span+span::before{display:none;}
  .article-meta{gap:10px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .card-grid{grid-template-columns:1fr;}
  .card-body{padding:18px;}
  .btn{height:42px;padding:0 16px;font-size:14px;}
  .article-title{font-size:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
}

/* roulang page: category1 */
:root{
  --primary:#14507A;
  --primary-dark:#0C3552;
  --primary-light:#E3EDF5;
  --accent:#E07B39;
  --accent-light:#FBEDE1;
  --ink:#0F1B2A;
  --text-2:#46586B;
  --text-3:#7A8A9B;
  --line:#E2E8EF;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --danger:#C0392B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 8px 24px rgba(15,27,42,.06);
  --shadow-2:0 14px 32px rgba(15,27,42,.12);
  --shadow-3:0 20px 48px rgba(15,27,42,.16);
  --space:96px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Segoe UI",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;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color 180ms ease}
a:hover,a:focus{color:var(--primary-dark);text-decoration:underline}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:none;box-shadow:0 0 0 2px rgba(20,80,122,.30);border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ============ 通用排版 ============ */
h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.4px}
h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.2px}
h3{font-size:22px;line-height:1.4;font-weight:600}
p{color:var(--text-2)}
.section{padding:var(--space) 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{margin-bottom:12px}
.section-head p{font-size:16px;color:var(--text-2)}
.section-label{
  display:inline-block;
  font-size:13px;font-weight:500;letter-spacing:.4px;
  color:var(--primary);
  background:var(--primary-light);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:14px;
}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}

/* ============ 顶部品牌行 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.brand-row{height:68px;display:flex;align-items:center}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.brand-logo{display:flex;align-items:baseline;gap:6px;line-height:1;text-decoration:none}
.brand-logo:hover{text-decoration:none}
.brand-mark{font-size:21px;font-weight:700;color:var(--primary-dark);letter-spacing:.5px}
.brand-sub{
  font-size:13px;font-weight:600;color:var(--primary);
  background:var(--primary-light);
  border-radius:6px;
  padding:3px 8px;
  letter-spacing:.5px;
}
.brand-actions{display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:46px;width:260px;
  padding:0 14px;
  background:var(--bg);
  border:1px solid #D8E1EA;
  border-radius:var(--radius-btn);
  transition:border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}
.search-box svg{flex:none;color:var(--text-3)}
.search-box input{
  border:0;background:transparent;width:100%;height:100%;
  font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{
  background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(20,80,122,.12);
}

/* ============ 频道行 ============ */
.channel-row{background:#F6F8FB;border-bottom:1px solid var(--line)}
.channel-list{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:48px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--text-2);
  white-space:nowrap;
  text-decoration:none;
  transition:color 180ms ease;
}
.channel-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:transparent;border-radius:2px;transition:background 180ms ease;
}
.channel-link:hover{color:var(--primary);text-decoration:none}
.channel-link:hover::after{background:rgba(20,80,122,.30)}
.channel-link.is-active{color:var(--primary);font-weight:600}
.channel-link.is-active::after{background:var(--primary)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  text-decoration:none;white-space:nowrap;
  transition:background 180ms ease, color 180ms ease, border-color 180ms ease,
             box-shadow 180ms ease, transform 180ms ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0);box-shadow:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#113F61;color:#fff;box-shadow:var(--shadow-2)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#C9682B;color:#fff;box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);box-shadow:var(--shadow-1)}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--primary);
}
.btn-link svg{transition:transform 180ms ease}
.btn-link:hover{color:var(--primary-dark)}
.btn-link:hover svg{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ============ 移动抽屉 ============ */
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  color:var(--primary);background:#fff;
  transition:border-color 180ms ease,background 180ms ease;
}
.nav-toggle:hover{border-color:var(--primary);background:var(--primary-light)}
.drawer{
  position:fixed;inset:0;z-index:80;
  background:#fff;
  padding:20px 24px 32px;
  transform:translateX(100%);
  transition:transform 220ms ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;color:var(--primary);
}
.drawer-title{font-size:13px;font-weight:600;color:var(--text-3);letter-spacing:.5px;margin:20px 0 10px}
.drawer-nav a{
  display:block;padding:14px 4px;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:500;color:var(--ink);text-decoration:none;
}
.drawer-nav a.is-active{color:var(--primary);font-weight:600}
.drawer-cta{display:grid;gap:12px;margin-top:24px}

/* ============ 分类页首屏 ============ */
.cat-hero{
  position:relative;
  min-height:320px;
  display:flex;align-items:center;
  padding:56px 0;
  background-image:linear-gradient(100deg,rgba(227,237,245,.96) 0%,rgba(255,255,255,.88) 52%,rgba(246,248,251,.72) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-hero-inner{max-width:820px}
.cat-hero h1{margin:16px 0 14px;font-size:38px}
.cat-hero p{font-size:17px;color:var(--text-2);max-width:660px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ============ 步骤流 ============ */
.step-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative}
.step-item{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 24px 24px;
  box-shadow:var(--shadow-1);
  transition:box-shadow 180ms ease,border-color 180ms ease,transform 180ms ease;
}
.step-item:hover{
  transform:translateY(-4px);
  border-color:rgba(20,80,122,.30);
  box-shadow:var(--shadow-2);
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:var(--primary-light);color:var(--primary-dark);
  font-size:15px;font-weight:700;letter-spacing:.5px;
  margin-bottom:16px;
}
.step-item h3{font-size:19px;margin-bottom:8px}
.step-item p{font-size:14.5px;line-height:1.75}
.step-item::after{
  content:"";position:absolute;top:50px;right:-24px;width:24px;height:1px;
  background:var(--line);
}
.step-item:last-child::after{display:none}

/* ============ 卡片 ============ */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:box-shadow 180ms ease,border-color 180ms ease,transform 180ms ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(20,80,122,.30);
  box-shadow:var(--shadow-2);
}
.card-media{
  margin:-24px -24px 20px;
  border-radius:var(--radius-card) var(--radius-card) 0 0;
  overflow:hidden;
  background:var(--primary-light);
  aspect-ratio:16/9;
}
.card-media img{width:100%;height:100%;object-fit:cover}
.card h3{margin-bottom:10px}
.card p{font-size:15px}
.info-card h3{font-size:20px}

/* 勾选列表 */
.check-list{display:grid;gap:12px;margin-top:6px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.7}
.check-list svg{flex:none;margin-top:5px;color:var(--accent)}

/* 处理办法卡 */
.tip-card{display:flex;flex-direction:column;gap:12px;padding:26px 24px}
.tip-icon{
  width:46px;height:46px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);
}
.tip-card h3{font-size:18px}
.tip-card p{font-size:14.5px}
.tag{
  display:inline-block;
  font-size:13px;font-weight:500;
  padding:4px 12px;border-radius:999px;
  background:var(--primary-light);color:var(--primary-dark);
}
.tag-accent{background:var(--accent-light);color:#B65F22}

/* ============ 数据条 ============ */
.stat-row{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:28px 0;
}
.stat-cell{padding:0 20px;border-right:1px solid var(--line)}
.stat-cell:last-child{border-right:0}
.stat-num{
  font-family:"Inter","SFMono-Regular",Consolas,var(--font);
  font-size:32px;font-weight:700;color:var(--primary-dark);
  letter-spacing:-.5px;line-height:1.2;
}
.stat-label{font-size:14px;color:var(--text-3);margin-top:6px}

/* ============ 图文说明块 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.split-media{border-radius:var(--radius-img);overflow:hidden;background:var(--primary-light);box-shadow:var(--shadow-1)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.split-text h3{margin-bottom:12px}
.split-text p{font-size:15.5px}
.split-list{display:grid;gap:10px;margin:18px 0 22px}
.split-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--text-2);
}
.split-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:50%;background:var(--accent);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);
  transition:color 180ms ease;
}
.faq-q:hover{color:var(--primary)}
.faq-q svg{flex:none;color:var(--primary);transition:transform 180ms ease}
.faq-item.is-open .faq-q svg{transform:rotate(180deg)}
.faq-a{
  display:none;
  padding:0 4px 20px;
  font-size:15px;line-height:1.8;color:var(--text-2);
  max-width:760px;
}
.faq-item.is-open .faq-a{display:block}

/* ============ 尾部 CTA ============ */
.cta-band{
  background:var(--primary-dark);
  border-radius:18px;
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px}
.cta-band p{color:#B9CFDF;font-size:15.5px;max-width:560px}
.cta-band .btn-accent{flex:none;height:48px;padding:0 28px;font-size:16px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--primary-dark);
  color:#B9CFDF;
  padding:64px 0 0;
  margin-top:var(--space);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand strong{display:block;font-size:19px;color:#fff;font-weight:700;letter-spacing:.5px}
.footer-brand em{display:inline-block;font-style:normal;font-size:13px;color:#9FBBD0;margin-top:6px}
.footer-brand p{font-size:14px;line-height:1.8;color:#9FBBD0;margin-top:14px;max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:#B9CFDF;text-decoration:none;transition:color 180ms ease}
.footer-col a:hover{color:#fff;text-decoration:none}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#9FBBD0;
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  h1{font-size:36px}
  .cat-hero h1{font-size:34px}
}
@media (max-width:1024px){
  :root{--space:64px}
  .search-box{width:200px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-item::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px}
}
@media (max-width:860px){
  .brand-actions .search-box,
  .brand-actions .btn-ghost,
  .brand-actions .btn-accent{display:none}
  .nav-toggle{display:inline-flex}
  .split{grid-template-columns:1fr;gap:24px}
}
@media (max-width:640px){
  :root{--space:48px}
  body{font-size:15.5px}
  h1{font-size:28px}
  h2{font-size:24px}
  h3{font-size:19px}
  .container{padding:0 18px}
  .brand-row{height:56px}
  .brand-mark{font-size:18px}
  .cat-hero{min-height:auto;padding:40px 0}
  .cat-hero h1{font-size:26px}
  .cat-hero p{font-size:15.5px}
  .hero-cta .btn{width:100%}
  .grid-2,.grid-3,.grid-4,.step-flow{grid-template-columns:1fr}
  .card{padding:18px}
  .card-media{margin:-18px -18px 16px}
  .stat-row{grid-template-columns:1fr 1fr;gap:20px 0;padding:22px 0}
  .stat-cell{border-right:0;padding:0 8px}
  .stat-num{font-size:26px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-band .btn-accent{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category2 */
:root{
  --primary:#14507A;
  --primary-dark:#0C3552;
  --primary-light:#E3EDF5;
  --accent:#E07B39;
  --accent-light:#FBEDE1;
  --ink:#0F1B2A;
  --ink-2:#46586B;
  --ink-3:#7A8A9B;
  --line:#E2E8EF;
  --page:#F6F8FB;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 8px 24px rgba(15,27,42,.06);
  --shadow-2:0 14px 32px rgba(15,27,42,.12);
  --shadow-3:0 20px 48px rgba(15,27,42,.16);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color 180ms ease;}
a:hover,a:focus{color:var(--primary-dark);text-decoration:underline;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid rgba(20,80,122,.35);outline-offset:2px;}

.grid-container{max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px;}
@media (min-width:1440px){.grid-container{max-width:1280px;}}

/* ============ 顶部品牌行 ============ */
.site-header{position:relative;z-index:40;background:#fff;}
.topbar{border-bottom:1px solid var(--line);background:#fff;}
.topbar-inner{display:flex;align-items:center;min-height:68px;gap:20px;}
.logo{display:inline-flex;flex-direction:column;justify-content:center;line-height:1.1;color:var(--primary-dark);}
.logo:hover{text-decoration:none;color:var(--primary-dark);}
.logo-main{font-size:20px;font-weight:700;letter-spacing:.5px;}
.logo-sub{font-size:12px;letter-spacing:3px;color:var(--ink-3);font-weight:500;margin-top:2px;}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-form{position:relative;}
.search-icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--ink-3);pointer-events:none;}
.search-input{
  height:46px;width:232px;padding:0 14px 0 40px;
  border:1px solid #D8E1EA;border-radius:var(--radius-btn);
  background:#fff;font-size:14px;color:var(--ink);
  transition:border-color 180ms ease,box-shadow 180ms ease;
}
.search-input::placeholder{color:var(--ink-3);}
.search-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,80,122,.12);}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  border-radius:var(--radius-btn);align-items:center;justify-content:center;color:var(--primary-dark);
}
.menu-toggle:hover{background:var(--primary-light);}

/* ============ 频道行 ============ */
.channel-row{background:#fff;border-bottom:1px solid var(--line);}
.channel-list{display:flex;align-items:stretch;gap:30px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;height:48px;white-space:nowrap;
  font-size:15px;color:var(--ink-2);border-bottom:2px solid transparent;
  transition:color 180ms ease,border-color 180ms ease;
}
.channel-link:hover{color:var(--primary);text-decoration:none;}
.channel-link.is-active{color:var(--primary);font-weight:600;border-bottom-color:var(--primary);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:background-color 180ms ease,color 180ms ease,transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:#0F4162;color:#fff;box-shadow:var(--shadow-2);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-accent:hover{background:#C96A2C;color:#fff;box-shadow:var(--shadow-2);}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);}
.btn-ghost{background:transparent;color:var(--primary);padding:0 6px;height:auto;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.text-link:hover{color:var(--primary-dark);}
.text-link svg{transition:transform 180ms ease;}
.text-link:hover svg{transform:translateX(3px);}

/* ============ 首屏 ============ */
.hero-band{
  background:linear-gradient(180deg,#E3EDF5 0%,#F6F8FB 100%);
  padding:52px 0 48px;min-height:320px;display:flex;align-items:center;
  border-bottom:1px solid var(--line);
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:999px;background:#fff;color:var(--primary);font-size:13px;font-weight:600;
  border:1px solid rgba(20,80,122,.18);margin-bottom:18px;
}
.hero-title{font-size:38px;line-height:1.25;font-weight:700;color:var(--primary-dark);letter-spacing:-.5px;}
.hero-sub{margin-top:14px;font-size:17px;line-height:1.75;color:var(--ink-2);max-width:560px;}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-media img{
  width:100%;border-radius:var(--radius-card);background:var(--primary-light);
  box-shadow:var(--shadow-1);aspect-ratio:16/10;object-fit:cover;
}

/* ============ 状态条 ============ */
.status-strip{background:#fff;border-bottom:1px solid var(--line);}
.status-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.status-cell{padding:20px 4px;border-right:1px solid var(--line);}
.status-cell:last-child{border-right:0;}
.status-label{font-size:13px;color:var(--ink-3);letter-spacing:.5px;}
.status-value{
  font-size:20px;font-weight:700;color:var(--primary-dark);margin-top:4px;
  font-variant-numeric:tabular-nums;letter-spacing:.2px;
}
.status-value em{font-style:normal;font-size:13px;color:var(--ink-3);font-weight:500;margin-left:6px;}
.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#2E9E6B;margin-right:6px;vertical-align:middle;}

/* ============ 板块 ============ */
.section{padding:96px 0;}
.section--alt{background:var(--page);}
.section--white{background:#fff;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--primary-dark);}
.section-head h2::after{
  content:"";display:block;width:48px;height:3px;border-radius:2px;
  background:var(--primary);margin-top:16px;
}
.section-head p{margin-top:16px;font-size:15px;color:var(--ink-2);}

/* ============ 功能卡片矩阵 ============ */
.feature-grid{margin-top:-12px;}
.feature-card{
  height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(20,80,122,.3);}
.feature-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;color:var(--primary);
}
.feature-card h3{font-size:18px;line-height:1.4;font-weight:600;margin:16px 0 8px;color:var(--ink);}
.feature-card p{font-size:14px;line-height:1.75;color:var(--ink-2);margin-bottom:16px;}
.feature-card .text-link{margin-top:auto;}

/* ============ 对比表 ============ */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table th,.compare-table td{
  padding:16px 22px;text-align:left;font-size:15px;
  border-bottom:1px solid var(--line);vertical-align:top;
}
.compare-table thead th{
  background:#F2F6FA;font-size:14px;font-weight:600;color:var(--primary-dark);letter-spacing:.3px;
}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr{transition:background-color 180ms ease;}
.compare-table tbody tr:hover{background:#FAFCFE;}
.compare-table td.is-highlight{background:var(--primary-light);color:var(--primary-dark);font-weight:600;}
.compare-table th.is-highlight{background:#D6E6F2;color:var(--primary-dark);}
.compare-table td:first-child{color:var(--ink-2);font-weight:600;white-space:nowrap;}
.table-note{margin-top:14px;font-size:13px;color:var(--ink-3);}

/* ============ 双栏说明卡 ============ */
.panel-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:transform 180ms ease,box-shadow 180ms ease;
}
.panel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.panel-card h3{font-size:20px;font-weight:600;color:var(--primary-dark);}
.panel-card > p{margin-top:10px;font-size:15px;color:var(--ink-2);}
.panel-list{margin-top:20px;}
.panel-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:12px 0;border-top:1px solid var(--line);font-size:14px;color:var(--ink-2);line-height:1.7;
}
.panel-list li svg{flex:0 0 auto;margin-top:4px;color:var(--primary);}
.panel-list li strong{color:var(--ink);font-weight:600;}
.panel-media{margin-top:22px;border-radius:var(--radius-img);overflow:hidden;background:var(--primary-light);}
.panel-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ============ FAQ ============ */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:6px 24px;box-shadow:var(--shadow-1);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;text-align:left;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--primary);}
.faq-q svg{flex:0 0 auto;color:var(--ink-3);transition:transform 180ms ease;}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-item.is-open .faq-q svg{transform:rotate(180deg);color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease;}
.faq-a p{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:820px;}
.faq-item.is-open .faq-a{max-height:260px;}

/* ============ 尾部 CTA ============ */
.cta-band{
  background:var(--primary);border-radius:20px;padding:48px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow-2);
}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff;}
.cta-band p{margin-top:10px;font-size:15px;color:#C9DDEB;max-width:640px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}
.cta-actions .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-dark);color:#B9CFDF;padding:64px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand strong{display:block;font-size:19px;font-weight:700;color:#fff;letter-spacing:.5px;}
.footer-brand em{display:block;font-style:normal;font-size:13px;letter-spacing:2px;color:#8FB0C7;margin-top:4px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#B9CFDF;max-width:360px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:#B9CFDF;}
.footer-col ul li a:hover{color:#fff;text-decoration:none;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:#8FB0C7;flex-wrap:wrap;
}

/* ============ 移动端抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,27,42,.45);z-index:70;
  opacity:0;visibility:hidden;transition:opacity 200ms ease,visibility 200ms ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);background:#fff;z-index:80;
  transform:translateX(105%);transition:transform 240ms ease;
  box-shadow:var(--shadow-3);padding:22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:40px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--primary-dark);}
.drawer-close:hover{background:var(--primary-light);}
.drawer .search-input{width:100%;}
.drawer-nav{margin:22px 0;border-top:1px solid var(--line);}
.drawer-nav a{
  display:block;padding:14px 0;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink-2);
}
.drawer-nav a:hover{color:var(--primary);text-decoration:none;}
.drawer-nav a.is-active{color:var(--primary);font-weight:600;}
.drawer-cta{display:flex;flex-direction:column;gap:12px;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero-title{font-size:34px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .topbar-inner{min-height:60px;}
  .search-form,.topbar-actions .btn-outline{display:none;}
  .menu-toggle{display:inline-flex;}
  .channel-list{gap:22px;}
  .hero-band{padding:40px 0 36px;min-height:0;}
  .hero-title{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-media{margin-top:28px;}
  .status-grid{grid-template-columns:repeat(2,1fr);}
  .status-cell:nth-child(2){border-right:0;}
  .status-cell:nth-child(1),.status-cell:nth-child(2){border-bottom:1px solid var(--line);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{padding-top:48px;margin-top:64px;}
}
@media (max-width:767px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .hero-title{font-size:27px;}
  .section-head h2{font-size:25px;}
  .section-head{margin-bottom:32px;}
  .feature-card,.panel-card{padding:20px;}
  .faq-list{padding:2px 18px;}
  .faq-q{font-size:16px;padding:16px 0;}
  .cta-band h2{font-size:23px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:639px){
  .section{padding:48px 0;}
  .hero-title{font-size:25px;letter-spacing:0;}
  .hero-actions .btn{width:100%;}
  .status-grid{grid-template-columns:1fr;}
  .status-cell{border-right:0;border-bottom:1px solid var(--line);}
  .status-cell:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
  .compare-table thead{display:none;}
  .compare-table tbody tr{display:block;border-bottom:1px solid var(--line);padding:10px 0;}
  .compare-table tbody tr:last-child{border-bottom:0;}
  .compare-table td{display:block;border:0;padding:8px 18px;background:transparent !important;}
  .compare-table td::before{
    content:attr(data-label);display:block;font-size:12px;color:var(--ink-3);
    font-weight:500;margin-bottom:4px;letter-spacing:.3px;
  }
  .compare-table td:first-child{white-space:normal;color:var(--primary-dark);font-size:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --brand:#14507A;
  --brand-hover:#0F4368;
  --brand-dark:#0C3552;
  --brand-light:#E3EDF5;
  --accent:#E07B39;
  --accent-hover:#C96A2C;
  --accent-light:#FBEDE1;
  --ink:#0F1B2A;
  --text-2:#46586B;
  --text-3:#7A8A9B;
  --line:#E2E8EF;
  --page:#F6F8FB;
  --card:#FFFFFF;
  --input-line:#D8E1EA;
  --danger:#C0392B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 8px 24px rgba(15,27,42,.06);
  --shadow-2:0 14px 32px rgba(15,27,42,.12);
  --shadow-3:0 20px 48px rgba(15,27,42,.16);
  --container:1200px;
  --gap:24px;
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover,a:focus{color:var(--brand-dark);text-decoration:underline}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{background:none;border:0;cursor:pointer;padding:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid rgba(20,80,122,.45);outline-offset:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0;color:#fff;text-decoration:none}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sec-y) 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--ink);position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand)}
.section-head p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:680px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;white-space:nowrap}
.text-link::after{content:"→";font-size:15px;transition:transform .18s ease}
.text-link:hover{text-decoration:none}
.text-link:hover::after{transform:translateX(4px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  cursor:pointer;white-space:nowrap;
}
.btn:hover,.btn:focus{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(20,80,122,.18)}
.btn-primary:hover,.btn-primary:focus{background:var(--brand-hover);color:#fff;box-shadow:0 10px 22px rgba(20,80,122,.26)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(224,123,57,.22)}
.btn-accent:hover,.btn-accent:focus{background:var(--accent-hover);color:#fff;box-shadow:0 10px 22px rgba(224,123,57,.3)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand-dark)}
.btn-light{background:#fff;color:var(--brand-dark);border-color:#fff}
.btn-light:hover,.btn-light:focus{background:#fff;color:var(--brand);border-color:#fff}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.2px}
.badge-accent{background:var(--accent-light);color:var(--accent-hover)}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--text-2)}
.pill-row{display:flex;flex-wrap:wrap;gap:10px}
.pill{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--text-2);font-size:14px;font-weight:500;transition:all .18s ease}
.pill:hover{border-color:var(--brand);color:var(--brand);text-decoration:none}
.pill.is-current{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- 头部 ---------- */
.site-header{position:relative;z-index:60}
.brand-row{background:#fff;border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand-logo{display:flex;flex-direction:column;justify-content:center;line-height:1.15;flex-shrink:0}
.brand-logo:hover{text-decoration:none}
.logo-main{font-size:20px;font-weight:700;color:var(--brand-dark);letter-spacing:.5px}
.logo-sub{font-size:12px;color:var(--text-3);letter-spacing:1px;margin-top:2px}
.brand-tools{display:flex;align-items:center;gap:12px}
.site-search{position:relative;display:flex;align-items:center}
.site-search .search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-3);display:flex}
.site-search input[type="search"]{
  width:270px;height:46px;padding:0 16px 0 40px;
  border:1px solid var(--input-line);border-radius:var(--radius-btn);
  background:#fff;font-size:14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.site-search input[type="search"]::placeholder{color:var(--text-3)}
.site-search input[type="search"]:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,80,122,.12)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--radius-btn);border:1px solid var(--line);flex-direction:column;align-items:center;justify-content:center;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-dark);transition:transform .2s ease,opacity .2s ease}
.nav-toggle:hover{border-color:var(--brand)}

.channel-row{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;box-shadow:0 2px 10px rgba(15,27,42,.04)}
.channel-list{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-link{display:inline-flex;align-items:center;height:48px;padding:0 14px;font-size:15px;color:var(--text-2);border-bottom:2px solid transparent;white-space:nowrap}
.channel-link:hover{color:var(--brand);text-decoration:none}
.channel-link.is-active{color:var(--brand);font-weight:600;border-bottom-color:var(--brand)}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(15,27,42,.42);opacity:0;visibility:hidden;transition:opacity .22s ease;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:88vw;background:#fff;z-index:90;
  transform:translateX(100%);transition:transform .24s ease;display:flex;flex-direction:column;box-shadow:var(--shadow-3);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--line)}
.drawer-head strong{font-size:16px;color:var(--brand-dark)}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-2)}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-body{padding:22px;overflow-y:auto;display:flex;flex-direction:column;gap:20px}
.drawer-body .site-search input[type="search"]{width:100%}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{display:flex;align-items:center;height:44px;padding:0 12px;border-radius:10px;color:var(--text-2);font-size:15px}
.drawer-nav a:hover{background:var(--brand-light);color:var(--brand);text-decoration:none}
.drawer-nav a.is-active{background:var(--brand-light);color:var(--brand);font-weight:600}
.drawer-cta{display:flex;flex-direction:column;gap:10px}
.drawer-cta .btn{width:100%}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:18px 0 0;font-size:13px;color:var(--text-3)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li::after{content:"/";margin-left:8px;color:var(--line)}
.breadcrumb li:last-child::after{display:none}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{color:var(--text-2)}

/* ---------- 首屏 ---------- */
.cat-hero{background:#fff;padding:32px 0 56px;border-bottom:1px solid var(--line)}
.cat-hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;background:var(--brand-light);color:var(--brand);font-size:13px;font-weight:600}
.cat-hero h1{font-size:44px;line-height:1.25;font-weight:700;margin:20px 0 16px;color:var(--ink);letter-spacing:-.3px}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:16px;background:var(--brand-light)}
.hero-float{
  position:absolute;left:-16px;bottom:22px;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:14px 18px;box-shadow:var(--shadow-2);max-width:250px;
}
.hero-float strong{display:block;font-size:22px;color:var(--brand);line-height:1.2}
.hero-float span{font-size:13px;color:var(--text-3)}

/* ---------- 场景速览 ---------- */
.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.scenario-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;flex-direction:column;
}
.scenario-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(20,80,122,.3)}
.scenario-icon{width:44px;height:44px;border-radius:12px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.scenario-card h3{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:10px}
.scenario-card p{font-size:14px;color:var(--text-2);line-height:1.75;flex:1}
.scenario-card .text-link{margin-top:18px;font-size:14px}

/* ---------- zigzag ---------- */
.zigzag{display:flex;flex-direction:column;gap:64px}
.zigzag-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.zigzag-row.reverse .zigzag-media{order:2}
.zigzag-row.reverse .zigzag-body{order:1}
.zigzag-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);background:var(--brand-light);box-shadow:var(--shadow-1)}
.zigzag-body h3{font-size:22px;font-weight:600;line-height:1.45;margin:14px 0 12px}
.zigzag-body p{color:var(--text-2);font-size:15.5px;max-width:520px}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text-2)}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:50%;
  background:var(--brand-light);
  box-shadow:inset 0 0 0 1px rgba(20,80,122,.25);
}
.check-list li::after{
  content:"";position:absolute;left:4px;top:13px;width:6px;height:3px;border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(-45deg);
}
.zigzag-body .text-link{margin-top:22px}

/* ---------- 指标条 ---------- */
.metric-bar{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metric-cell{padding:34px 24px;border-right:1px solid var(--line);text-align:center}
.metric-cell:last-child{border-right:0}
.metric-value{font-size:38px;font-weight:700;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.metric-value em{font-style:normal;font-size:18px;color:var(--text-2);margin-left:4px}
.metric-label{display:block;margin-top:10px;font-size:14px;color:var(--text-3)}

/* ---------- 状态条 ---------- */
.status-band{
  background:var(--brand-dark);color:#fff;border-radius:var(--radius-card);padding:22px 28px;
  display:flex;flex-wrap:wrap;align-items:center;gap:20px;justify-content:space-between;margin-bottom:40px;
}
.status-band .status-live{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600}
.status-dot{width:9px;height:9px;border-radius:50%;background:#4CC38A;box-shadow:0 0 0 4px rgba(76,195,138,.22)}
.status-band p{font-size:14px;color:#B9CFDF;margin:0}
.status-metrics{display:flex;gap:28px;flex-wrap:wrap}
.status-metrics span{font-size:13px;color:#B9CFDF}
.status-metrics b{display:block;font-size:18px;color:#fff;font-weight:700;font-variant-numeric:tabular-nums}

/* ---------- 案例卡 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.case-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(20,80,122,.3)}
.case-cover{position:relative;background:var(--brand-light)}
.case-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.case-cover .badge{position:absolute;left:14px;top:14px;background:#fff}
.case-body{padding:24px;display:flex;flex-direction:column;flex:1}
.case-body strong{font-size:15px;color:var(--brand-dark)}
.case-body h3{font-size:18px;font-weight:600;line-height:1.5;margin:10px 0 10px}
.case-body p{font-size:14.5px;color:var(--text-2);flex:1}
.case-stats{display:flex;gap:22px;margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}
.case-stats div span{display:block;font-size:12px;color:var(--text-3)}
.case-stats div b{font-size:17px;color:var(--brand);font-variant-numeric:tabular-nums}
.quote-band{
  margin-top:40px;background:var(--brand-light);border-radius:var(--radius-card);padding:30px 34px;
  display:flex;gap:20px;align-items:flex-start;
}
.quote-band .quote-mark{font-size:34px;line-height:1;color:var(--brand);font-weight:700}
.quote-band p{color:var(--text-2);font-size:15.5px;max-width:860px}
.quote-band cite{display:block;margin-top:10px;font-style:normal;font-size:13.5px;color:var(--text-3)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;display:flex;flex-direction:column;gap:0;margin-top:8px}
.timeline-item{display:grid;grid-template-columns:120px 40px 1fr;gap:18px;align-items:flex-start;padding:22px 0;border-bottom:1px solid var(--line)}
.timeline-item:last-child{border-bottom:0}
.timeline-time{font-size:16px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.timeline-dot{position:relative;display:flex;justify-content:center;height:100%}
.timeline-dot::before{content:"";position:absolute;top:10px;bottom:-24px;width:2px;background:var(--line)}
.timeline-item:last-child .timeline-dot::before{display:none}
.timeline-dot i{position:relative;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--brand);margin-top:6px;z-index:1}
.timeline-item:first-child .timeline-dot i{background:var(--accent);border-color:var(--accent)}
.timeline-body h3{font-size:17px;font-weight:600;margin-bottom:6px}
.timeline-body p{font-size:14.5px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:flex-start}
.faq-aside h2{font-size:32px;line-height:1.3;font-weight:700;margin-bottom:16px}
.faq-aside p{color:var(--text-2);font-size:15px}
.faq-aside .btn{margin-top:24px}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  transition:background-color .18s ease,color .18s ease;
}
.faq-question:hover{background:var(--brand-light);color:var(--brand-dark)}
.faq-arrow{flex-shrink:0;color:var(--brand);transition:transform .18s ease}
.faq-item.is-open .faq-arrow{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.is-open .faq-answer{max-height:360px}
.faq-answer p{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-dark);color:#fff;border-radius:16px;padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff}
.cta-band p{margin-top:10px;color:#B9CFDF;font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:#B9CFDF;margin-top:96px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand strong{display:block;color:#fff;font-size:19px;letter-spacing:.5px}
.footer-brand em{display:block;font-style:normal;font-size:12.5px;color:#8FB0C8;margin-top:6px;letter-spacing:.5px}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:16px;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#B9CFDF;font-size:14px}
.footer-col a:hover{color:#fff;text-decoration:none}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 0 26px;font-size:13px;color:#8FB0C8}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  :root{--container:1280px}
}
@media (max-width:1280px){
  .cat-hero h1{font-size:40px}
}
@media (max-width:1024px){
  :root{--sec-y:64px}
  .site-search{display:none}
  .brand-tools .btn{display:none}
  .nav-toggle{display:flex}
  .scenario-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .cat-hero-grid{grid-template-columns:1fr;gap:36px}
  .cat-hero h1{font-size:34px}
  .hero-media img{aspect-ratio:16/9}
  .zigzag-row{gap:36px}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  :root{--sec-y:56px}
  .container{padding:0 18px}
  .brand-inner{height:56px}
  .logo-main{font-size:18px}
  .cat-hero{padding:20px 0 40px}
  .cat-hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .section-head h2{font-size:26px}
  .zigzag-row{grid-template-columns:1fr;gap:24px}
  .zigzag-row.reverse .zigzag-media{order:1}
  .zigzag-row.reverse .zigzag-body{order:2}
  .zigzag-body h3{font-size:20px}
  .metric-bar{grid-template-columns:1fr 1fr}
  .metric-cell{border-bottom:1px solid var(--line)}
  .metric-cell:nth-child(2n){border-right:0}
  .metric-cell:nth-child(n+3){border-bottom:0}
  .metric-value{font-size:30px}
  .quote-band{padding:22px;flex-direction:column;gap:10px}
  .timeline-item{grid-template-columns:76px 24px 1fr;gap:12px}
  .timeline-time{font-size:15px}
  .cta-band{padding:30px 24px;flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:22px}
  .faq-question{font-size:16px;padding:18px}
  .faq-answer p{padding:0 18px 18px}
  .site-footer{margin-top:64px;padding-top:48px}
}
@media (max-width:520px){
  .scenario-grid{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .metric-bar{grid-template-columns:1fr}
  .metric-cell{border-right:0;border-bottom:1px solid var(--line);padding:24px 16px}
  .metric-cell:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
  .cat-hero h1{font-size:25px}
  .hero-float{position:static;margin-top:16px;max-width:none}
  .status-band{padding:18px 20px}
}

/* roulang page: category4 */
:root{
  --primary:#14507A;
  --primary-dark:#0C3552;
  --primary-light:#E3EDF5;
  --accent:#E07B39;
  --accent-light:#FBEDE1;
  --ink:#0F1B2A;
  --ink-2:#46586B;
  --ink-3:#7A8A9B;
  --line:#E2E8EF;
  --page:#F6F8FB;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 8px 24px rgba(15,27,42,.06);
  --shadow-2:0 14px 32px rgba(15,27,42,.12);
  --shadow-3:0 20px 48px rgba(15,27,42,.16);
  --transition:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color var(--transition),background-color var(--transition),border-color var(--transition);}
a:hover{color:var(--primary-dark);text-decoration:underline;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--ink);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid rgba(20,80,122,.35);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--light{background:var(--card);}
.section--tint{background:var(--primary-light);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;}
.section-head p{margin-top:10px;color:var(--ink-2);font-size:15px;max-width:640px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:500;
  letter-spacing:.04em;
  color:var(--primary);
  background:var(--primary-light);
  border-radius:999px;
  padding:4px 14px;
  margin-bottom:16px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:background-color var(--transition),color var(--transition),border-color var(--transition),transform var(--transition),box-shadow var(--transition);
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn:focus-visible{outline:2px solid rgba(20,80,122,.3);outline-offset:2px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:#0F4267;color:#fff;box-shadow:var(--shadow-2);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-accent:hover{background:#C96A2E;color:#fff;box-shadow:var(--shadow-2);}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary-dark);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--line);}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  background:none;
  border:0;
  padding:0;
}
.btn-text::after{content:"→";font-size:14px;transition:transform var(--transition);}
.btn-text:hover{color:var(--primary-dark);text-decoration:none;}
.btn-text:hover::after{transform:translateX(4px);}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.brand-row{
  min-height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.logo{
  display:flex;
  flex-direction:column;
  line-height:1.15;
  flex-shrink:0;
}
.logo:hover{text-decoration:none;}
.logo-main{font-size:19px;font-weight:700;color:var(--primary);letter-spacing:.02em;}
.logo-sub{font-size:12px;color:var(--ink-3);letter-spacing:.16em;}
.brand-actions{display:flex;align-items:center;gap:12px;}
.search-form{position:relative;display:flex;align-items:center;}
.search-form input[type="search"]{
  width:220px;
  height:46px;
  border:1px solid #D8E1EA;
  border-radius:var(--radius-btn);
  padding:0 42px 0 14px;
  background:#fff;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.search-form input[type="search"]::placeholder{color:var(--ink-3);}
.search-form input[type="search"]:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(20,80,122,.12);
}
.search-form button{
  position:absolute;
  right:6px;
  top:50%;
  transform:translateY(-50%);
  width:34px;
  height:34px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:0;
  background:transparent;
  color:var(--primary);
  border-radius:8px;
}
.search-form button:hover{background:var(--primary-light);}
.nav-toggle{
  display:none;
  width:46px;
  height:46px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  color:var(--primary);
}
.nav-toggle:hover{background:var(--primary-light);}

.channel-row{
  background:var(--page);
  border-bottom:1px solid var(--line);
}
.channel-list{
  display:flex;
  align-items:center;
  gap:28px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-list::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  display:inline-block;
  height:48px;
  line-height:48px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  white-space:nowrap;
  border-bottom:2px solid transparent;
}
.channel-link:hover{color:var(--primary);text-decoration:none;}
.channel-link.is-active{color:var(--primary);font-weight:600;border-bottom-color:var(--primary);}

.mobile-drawer{
  display:none;
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:18px 0 24px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-logo{margin-bottom:16px;}
.mobile-drawer .drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:16px;}
.mobile-drawer .drawer-links a{
  padding:11px 12px;
  border-radius:10px;
  color:var(--ink-2);
  font-size:15px;
}
.mobile-drawer .drawer-links a:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none;}
.mobile-drawer .drawer-links a.is-active{background:var(--primary-light);color:var(--primary);font-weight:600;}
.mobile-drawer .search-form input[type="search"]{width:100%;}
.mobile-drawer .drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:14px;}

/* ---------- 首屏 ---------- */
.hero-banner{
  position:relative;
  min-height:360px;
  display:flex;
  align-items:center;
  background-image:linear-gradient(100deg,rgba(12,53,82,.94) 0%,rgba(12,53,82,.78) 45%,rgba(12,53,82,.42) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
}
.hero-banner .container{position:relative;z-index:1;padding-top:56px;padding-bottom:56px;}
.hero-banner .eyebrow{background:rgba(255,255,255,.14);color:#EAF3FA;}
.hero-banner h1{
  font-size:40px;
  line-height:1.28;
  font-weight:700;
  color:#fff;
  max-width:820px;
}
.hero-banner p{
  margin-top:16px;
  font-size:17px;
  color:#D5E5F0;
  max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ---------- 状态条 ---------- */
.status-bar{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.status-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.status-cell{
  padding:20px 24px;
  border-right:1px solid var(--line);
}
.status-cell:first-child{padding-left:0;}
.status-cell:last-child{border-right:0;}
.status-cell .status-label{font-size:13px;color:var(--ink-3);}
.status-cell .status-value{
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  margin-top:4px;
  font-variant-numeric:tabular-nums;
}
.status-cell .status-value .dot{
  display:inline-block;
  width:8px;height:8px;border-radius:50%;
  background:#2E9E6B;
  margin-right:8px;
  vertical-align:middle;
}
.status-cell .status-value em{font-style:normal;color:var(--accent);}

/* ---------- 筛选标签 ---------- */
.chip-bar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  margin-bottom:32px;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
  transition:all var(--transition);
}
.chip:hover{border-color:var(--primary);color:var(--primary);text-decoration:none;}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;}

/* ---------- 资讯列表 ---------- */
.news-list{display:grid;gap:20px;}
.news-item{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
  box-shadow:var(--shadow-1);
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.news-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(20,80,122,.3);
}
.news-thumb{
  border-radius:var(--radius-img);
  overflow:hidden;
  background:var(--primary-light);
  aspect-ratio:16/9;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{display:flex;flex-direction:column;gap:10px;min-width:0;}
.news-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:var(--ink-3);
}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--primary-light);
  color:var(--primary);
}
.badge-accent{background:var(--accent-light);color:#B65F22;}
.news-title{font-size:20px;line-height:1.45;font-weight:600;}
.news-title a{color:var(--ink);}
.news-title a:hover{color:var(--primary);text-decoration:none;}
.news-summary{
  font-size:15px;
  color:var(--ink-2);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:auto;
  padding-top:8px;
  font-size:13px;
  color:var(--ink-3);
}
.empty-state{
  display:none;
  text-align:center;
  padding:56px 24px;
  background:#fff;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  color:var(--ink-2);
}
.empty-state.is-visible{display:block;}
.empty-state svg{margin:0 auto 14px;color:var(--ink-3);}
.empty-state p{font-size:15px;}
.empty-state span{display:block;font-size:13px;color:var(--ink-3);margin-top:6px;}

/* ---------- 分页 ---------- */
.pagination{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  margin-top:40px;
  flex-wrap:wrap;
}
.page-link{
  min-width:42px;
  height:42px;
  padding:0 12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
}
.page-link:hover{border-color:var(--primary);color:var(--primary);text-decoration:none;}
.page-link.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;}
.page-link.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- 活动时间表 ---------- */
.activity-band{background:var(--primary-light);}
.activity-table{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.activity-row{
  display:grid;
  grid-template-columns:170px 1fr 160px 130px;
  align-items:center;
  gap:16px;
  padding:20px 24px;
  border-bottom:1px solid var(--line);
}
.activity-row:last-child{border-bottom:0;}
.activity-row.head{
  background:#F9FBFD;
  font-size:13px;
  font-weight:600;
  color:var(--ink-3);
  padding-top:14px;
  padding-bottom:14px;
}
.activity-row .act-time{
  font-size:15px;
  font-weight:600;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.activity-row .act-title{font-size:16px;font-weight:600;color:var(--ink);}
.activity-row .act-title small{display:block;font-weight:400;font-size:13px;color:var(--ink-3);margin-top:2px;}
.activity-row .act-type{font-size:14px;color:var(--ink-2);}
.tag-state{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  background:var(--primary-light);
  color:var(--primary);
  justify-self:start;
}
.tag-state.warm{background:var(--accent-light);color:#B65F22;}
.tag-state.mute{background:#EEF2F6;color:var(--ink-3);}

/* ---------- FAQ ---------- */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 24px;
  background:none;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
}
.faq-q:hover{color:var(--primary);}
.faq-q .arrow{
  flex-shrink:0;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--primary-light);
  color:var(--primary);
  transition:transform var(--transition),background-color var(--transition);
}
.faq-item.is-open .faq-q .arrow{transform:rotate(180deg);background:var(--primary);color:#fff;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 220ms ease,padding var(--transition);
  padding:0 24px;
}
.faq-item.is-open .faq-a{max-height:260px;padding:0 24px 24px;}
.faq-a p{font-size:15px;color:var(--ink-2);line-height:1.8;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--primary-dark);
  color:#fff;
  border-radius:0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:56px 0;
}
.cta-inner h2{color:#fff;font-size:28px;line-height:1.35;}
.cta-inner p{color:#B9CFDF;font-size:15px;margin-top:10px;max-width:560px;}
.subscribe-form{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.subscribe-form input[type="email"]{
  width:250px;
  height:46px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);
  color:#fff;
  padding:0 14px;
  transition:border-color var(--transition),box-shadow var(--transition),background-color var(--transition);
}
.subscribe-form input[type="email"]::placeholder{color:#93AEC3;}
.subscribe-form input[type="email"]:focus{
  outline:none;
  border-color:#fff;
  background:rgba(255,255,255,.14);
  box-shadow:0 0 0 3px rgba(255,255,255,.16);
}
.subscribe-form input[type="email"].is-error{border-color:#F0A6A0;}
.form-note{
  font-size:13px;
  color:#B9CFDF;
  margin-top:12px;
  min-height:20px;
}
.form-note.is-error{color:#F3B7B0;}
.form-note.is-ok{color:#9FD8BC;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-dark);color:#B9CFDF;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding:64px 0 40px;
}
.footer-brand strong{display:block;font-size:18px;color:#fff;letter-spacing:.02em;}
.footer-brand em{display:block;font-size:12px;color:#8FAEC4;font-style:normal;letter-spacing:.16em;margin-top:4px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#A9C3D6;max-width:340px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#B9CFDF;font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:none;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 32px;
  font-size:13px;
  color:#8FAEC4;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .section{padding:80px 0;}
}
@media (max-width:1023px){
  .search-form input[type="search"]{width:180px;}
  .brand-actions .btn-ghost{display:none;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:27px;}
  .hero-banner h1{font-size:32px;}
  .news-item{grid-template-columns:220px 1fr;gap:20px;}
  .status-grid{grid-template-columns:repeat(2,1fr);}
  .status-cell:nth-child(2){border-right:0;}
  .status-cell:nth-child(-n+2){border-bottom:1px solid var(--line);}
  .status-cell:nth-child(odd){padding-left:0;}
  .activity-row{grid-template-columns:140px 1fr 120px;}
  .activity-row .act-type{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .nav-toggle{display:flex;}
  .brand-actions .btn-primary{display:none;}
  .search-form{display:none;}
  .channel-row{display:none;}
  .brand-row{min-height:56px;}
  .logo-main{font-size:17px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .section-head h2{font-size:23px;}
  .hero-banner{min-height:auto;}
  .hero-banner h1{font-size:26px;}
  .hero-banner p{font-size:15px;}
  .status-grid{grid-template-columns:1fr;}
  .status-cell{border-right:0;border-bottom:1px solid var(--line);padding:16px 0;}
  .status-cell:last-child{border-bottom:0;}
  .news-item{grid-template-columns:1fr;padding:16px;}
  .news-thumb{aspect-ratio:16/9;}
  .news-title{font-size:18px;}
  .activity-row{grid-template-columns:1fr;gap:8px;padding:18px;}
  .activity-row.head{display:none;}
  .activity-row .act-type{display:block;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0;}
  .cta-inner h2{font-size:22px;}
  .subscribe-form{flex-direction:column;align-items:stretch;width:100%;}
  .subscribe-form input[type="email"]{width:100%;}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px;}
  .footer-brand p{max-width:none;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .btn{height:44px;padding:0 16px;font-size:14px;}
  .hero-actions .btn{width:100%;}
  .chip{height:34px;padding:0 14px;font-size:13px;}
  .news-foot{flex-direction:column;align-items:flex-start;gap:8px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}