/* roulang page: index */
:root{
  --c-primary:#1F5AE0;
  --c-primary-dark:#143E9E;
  --c-primary-soft:rgba(31,90,224,.08);
  --c-accent:#FF6A2B;
  --c-accent-dark:#E85718;
  --c-data:#12A171;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-line:#E3E9F2;
  --c-text:#0F1724;
  --c-text-2:#5A6679;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(15,23,36,.06);
  --shadow-hover:0 14px 34px rgba(15,23,36,.10);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-surface);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--font-cn);font-weight:700;letter-spacing:.01em;line-height:1.3;color:var(--c-text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:inherit;}
::selection{background:rgba(31,90,224,.16);}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:72px 0;}
.section--bg{background:var(--c-bg);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:700;letter-spacing:.06em;
  color:var(--c-primary);text-transform:uppercase;
  padding:5px 12px;border-radius:6px;background:var(--c-primary-soft);
  margin-bottom:18px;
}
.section-label::before{content:"";width:6px;height:6px;background:var(--c-primary);border-radius:1px;}
.section-head h2{font-size:30px;margin-bottom:14px;}
.section-head p{font-size:16.5px;color:var(--c-text-2);line-height:1.85;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(31,90,224,.20);}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(31,90,224,.26);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,106,43,.24);}
.btn-accent:hover,.btn-accent:focus{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,106,43,.30);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:rgba(31,90,224,.35);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary);transform:translateY(-1px);}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.45);}
.btn-light:hover,.btn-light:focus{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-1px);}
.btn-sm{padding:10px 20px;font-size:15px;}
.btn-lg{padding:16px 34px;font-size:17px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--c-primary);}
.link-arrow::after{content:"→";transition:transform .2s ease;}
.link-arrow:hover::after{transform:translateX(4px);}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--c-line);}
.header-inner{display:flex;align-items:center;gap:24px;min-height:70px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--c-text);font-weight:700;font-size:19px;letter-spacing:.01em;}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--c-primary);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;letter-spacing:0;
}
.primary-nav{flex:1;min-width:0;}
.primary-nav ul{display:flex;align-items:center;gap:2px;}
.primary-nav a{display:block;padding:9px 14px;border-radius:var(--radius-sm);font-size:15.5px;font-weight:500;color:var(--c-text-2);white-space:nowrap;}
.primary-nav a:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.primary-nav a.is-active{color:var(--c-primary);font-weight:700;background:var(--c-primary-soft);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.header-search{position:relative;display:flex;align-items:center;}
.header-search input{
  width:206px;height:42px;padding:0 44px 0 16px;
  border:1px solid var(--c-line);border-radius:21px;background:var(--c-bg);
  font-size:14.5px;color:var(--c-text);transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.header-search input::placeholder{color:#9AA6B8;}
.header-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(31,90,224,.12);}
.header-search button{
  position:absolute;right:5px;width:32px;height:32px;border:0;background:transparent;
  color:var(--c-text-2);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:color .2s ease,background-color .2s ease;
}
.header-search button:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);background:#fff;
  border-radius:var(--radius-sm);cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;top:70px;right:0;bottom:0;width:100%;max-width:420px;
  background:#fff;z-index:79;padding:24px 24px 110px;overflow-y:auto;
  border-left:1px solid var(--c-line);box-shadow:-10px 0 30px rgba(15,23,36,.08);
  transform:translateX(102%);transition:transform .26s ease;visibility:hidden;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible;}
.mobile-drawer .drawer-search{position:relative;margin-bottom:20px;}
.mobile-drawer .drawer-search input{
  width:100%;height:46px;border-radius:var(--radius-sm);border:1px solid var(--c-line);
  background:var(--c-bg);padding:0 16px;font-size:15px;
}
.mobile-drawer .drawer-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(31,90,224,.12);}
.mobile-drawer nav a{
  display:block;padding:14px 16px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;color:var(--c-text);border:1px solid var(--c-line);margin-bottom:10px;
}
.mobile-drawer nav a.is-active{color:var(--c-primary);border-color:rgba(31,90,224,.4);background:var(--c-primary-soft);}
.mobile-drawer nav a:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer-cta{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--c-bg);padding:92px 0 76px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.13;
}
.hero .container{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-line);
  border-radius:999px;padding:7px 16px;font-size:14px;font-weight:600;color:var(--c-primary);
  box-shadow:var(--shadow);margin-bottom:22px;
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--c-data);display:block;}
.hero h1{font-size:46px;line-height:1.24;margin-bottom:20px;letter-spacing:.005em;}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{font-size:18px;color:var(--c-text-2);line-height:1.8;max-width:520px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-hover);aspect-ratio:4/3;background:#fff;}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:56px;padding-top:28px;border-top:1px solid var(--c-line);
  position:relative;z-index:1;
}
.stat{padding-right:24px;display:flex;flex-direction:column;gap:2px;}
.stat + .stat{border-left:1px solid var(--c-line);padding-left:28px;}
.stat-num{font-size:30px;font-weight:700;color:var(--c-primary);line-height:1.25;letter-spacing:.01em;}
.stat-num small{font-size:17px;font-weight:600;margin-left:2px;}
.stat-label{font-size:14px;color:var(--c-text-2);}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;position:relative;}
.steps::before{content:"";position:absolute;top:27px;left:12%;right:12%;height:1px;background:var(--c-line);}
.step{position:relative;}
.step-badge{
  width:54px;height:54px;border-radius:50%;background:#fff;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;color:var(--c-accent);
  position:relative;z-index:1;box-shadow:var(--shadow);
}
.step h3{font-size:20px;margin:24px 0 8px;}
.step p{font-size:15.5px;color:var(--c-text-2);line-height:1.8;max-width:300px;}
.step-icon{margin-top:18px;color:var(--c-primary);opacity:.75;}

/* ---------- Service entries ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.entry-card{
  display:flex;flex-direction:column;justify-content:space-between;gap:22px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  padding:32px 30px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  position:relative;overflow:hidden;
}
.entry-card::after{content:"";position:absolute;left:0;top:0;height:3px;width:100%;background:var(--c-primary);opacity:0;transition:opacity .2s ease;}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(31,90,224,.2);}
.entry-card:hover::after{opacity:1;}
.entry-num{font-size:14px;font-weight:700;color:var(--c-primary);letter-spacing:.08em;}
.entry-card h3{font-size:21px;margin:14px 0 10px;}
.entry-card p{font-size:15.5px;color:var(--c-text-2);line-height:1.8;}

/* ---------- Cases ---------- */
.cases{display:grid;grid-template-columns:1.22fr 1fr;gap:28px;align-items:stretch;}
.case-stack{display:grid;gap:28px;}
.case-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(31,90,224,.2);}
.case-cover{aspect-ratio:16/9;overflow:hidden;background:var(--c-bg);}
.case-card--main .case-cover{aspect-ratio:16/8.4;}
.case-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.case-card:hover .case-cover img{transform:scale(1.03);}
.case-body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:6px;padding:4px 10px;align-self:flex-start;
}
.case-body h3{font-size:20px;line-height:1.5;}
.case-result{
  font-size:15px;font-weight:600;color:var(--c-data);
  padding-left:14px;border-left:3px solid var(--c-data);line-height:1.6;
}
.case-card--compact{flex-direction:row;}
.case-card--compact .case-cover{flex:0 0 42%;aspect-ratio:auto;min-height:170px;}
.case-card--compact .case-body{padding:24px 24px 24px 22px;}

/* ---------- News / CMS list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.news-card{
  display:flex;flex-direction:column;gap:14px;height:100%;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  padding:26px 26px 24px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(31,90,224,.2);}
.news-title{font-size:18.5px;line-height:1.55;color:var(--c-text);}
.news-card:hover .news-title{color:var(--c-primary);}
.news-title a{color:inherit;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--c-primary);}
.news-summary{
  font-size:15px;color:var(--c-text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:16px;border-top:1px solid var(--c-line);font-size:13.5px;color:var(--c-text-2);
}
.pill{display:inline-block;font-size:13px;font-weight:600;color:var(--c-accent);background:rgba(255,106,43,.10);border-radius:6px;padding:3px 10px;}
.news-meta .go{color:var(--c-primary);font-weight:600;transition:transform .2s ease;}
.news-card:hover .news-meta .go{transform:translateX(3px);}
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--radius);background:#fff;
  padding:56px 24px;text-align:center;color:var(--c-text-2);
}
.empty-state strong{display:block;font-size:17px;color:var(--c-text);margin-bottom:8px;}
.empty-bars{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:28px;}
.empty-bar{height:14px;border-radius:7px;background:var(--c-bg);}
.empty-bar.is-short{width:60%;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:16px;max-width:920px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);transition:border-color .2s ease;}
.faq-item.is-open{border-color:rgba(31,90,224,.28);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:22px 26px;cursor:pointer;text-align:left;
  font-size:17.5px;font-weight:600;color:var(--c-text);line-height:1.6;border-radius:var(--radius);
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{position:relative;flex:0 0 24px;width:24px;height:24px;border-radius:50%;border:1px solid var(--c-line);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;background:var(--c-primary);border-radius:2px;transition:transform .2s ease;}
.faq-icon::before{width:10px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:10px;transform:translate(-50%,-50%);}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{padding:0 26px 24px;font-size:15.5px;color:var(--c-text-2);line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-primary-dark);color:#fff;}
.cta-inner{padding:80px 0;display:grid;grid-template-columns:1.3fr 1fr;gap:48px;align-items:center;}
.cta-band h2{font-size:32px;color:#fff;margin-bottom:16px;}
.cta-band p{font-size:17px;color:rgba(255,255,255,.86);line-height:1.85;max-width:600px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-actions .btn{width:100%;}
.cta-points{display:grid;gap:10px;margin-top:22px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.9);}
.cta-points li::before{content:"";width:7px;height:7px;background:var(--c-accent);border-radius:2px;margin-top:9px;flex:0 0 7px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-text);margin-bottom:16px;}
.footer-brand:hover{color:var(--c-primary);}
.footer-desc{font-size:15px;color:var(--c-text-2);line-height:1.85;max-width:330px;}
.footer-col h4{font-size:16px;margin-bottom:18px;color:var(--c-text);}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:15px;color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-primary);}
.footer-contact p{font-size:15px;color:var(--c-text-2);line-height:1.9;}
.footer-contact strong{color:var(--c-text);font-weight:600;}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;font-size:14px;color:var(--c-text-2);
}
.footer-bottom span{line-height:1.7;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .hero h1{font-size:40px;}
  .header-search input{width:170px;}
  .primary-nav a{padding:9px 11px;font-size:15px;}
}
@media (max-width:991px){
  .section{padding:68px 0;}
  .section--tight{padding:56px 0;}
  .primary-nav,.header-search{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn{display:none;}
  .hero{padding:66px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:-1;aspect-ratio:16/9;}
  .hero h1{font-size:34px;}
  .hero-sub{font-size:17px;}
  .steps{grid-template-columns:1fr;gap:0;}
  .steps::before{left:26px;right:auto;top:0;bottom:0;width:1px;height:auto;}
  .step{display:grid;grid-template-columns:54px 1fr;column-gap:22px;padding-bottom:32px;}
  .step:last-child{padding-bottom:0;}
  .step-badge{grid-row:1 / span 3;}
  .step h3{margin:12px 0 6px;font-size:19px;}
  .step p{max-width:none;}
  .step-icon{margin-top:10px;}
  .entry-grid,.news-grid{grid-template-columns:repeat(2,1fr);}
  .cases{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:64px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:23px;}
  .section-head p{font-size:15.5px;}
  .hero{padding:52px 0 44px;}
  .hero h1{font-size:29px;}
  .hero-sub{font-size:16px;margin-bottom:26px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr;gap:0;margin-top:38px;padding-top:0;border-top:0;}
  .stat{padding:16px 0;border-top:1px solid var(--c-line);padding-right:0;}
  .stat + .stat{border-left:0;padding-left:0;}
  .stat-num{font-size:26px;}
  .entry-grid,.news-grid{grid-template-columns:1fr;}
  .case-card--compact{flex-direction:column;}
  .case-card--compact .case-cover{flex:none;aspect-ratio:16/9;min-height:0;}
  .case-body{padding:22px;}
  .faq-q{padding:18px 20px;font-size:16.5px;}
  .faq-a{padding:0 20px 20px;font-size:15px;}
  .cta-band h2{font-size:24px;}
  .cta-band p{font-size:15.5px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand-text{font-size:17px;}
  .hero h1{font-size:26px;}
  .section-label{font-size:12.5px;}
  .empty-bars{grid-template-columns:1fr;}
}

/* roulang page: article */
:root{
  --c-primary:#1F5AE0;
  --c-primary-dark:#143E9E;
  --c-primary-soft:rgba(31,90,224,.08);
  --c-primary-line:rgba(31,90,224,.20);
  --c-accent:#FF6A2B;
  --c-accent-dark:#E85618;
  --c-data:#12A171;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-line:#E3E9F2;
  --c-text:#0F1724;
  --c-text-2:#5A6679;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(15,23,36,.06);
  --shadow-hover:0 14px 34px rgba(15,23,36,.10);
  --container:1220px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:.01em;line-height:1.3;font-weight:700;color:var(--c-text);}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--c-primary);text-transform:uppercase;
  margin-bottom:14px;
}
.section-eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:inline-block;}
h2.section-title{font-size:30px;margin-bottom:14px;}
.section-sub{color:var(--c-text-2);font-size:16px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(31,90,224,.22);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(31,90,224,.28);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,106,43,.24);}
.btn-accent:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary-line);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary);transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14.5px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--c-line);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:70px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;letter-spacing:.02em;
}
.brand-text{font-size:18px;font-weight:700;color:var(--c-text);letter-spacing:.01em;}
.brand:hover .brand-text{color:var(--c-primary);}
.primary-nav{flex:1 1 auto;}
.primary-nav ul{display:flex;align-items:center;gap:6px;}
.primary-nav a{
  display:inline-block;padding:9px 14px;border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:500;color:var(--c-text-2);
}
.primary-nav a:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.primary-nav a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft);}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.header-search{position:relative;}
.header-search input{
  width:210px;height:42px;
  padding:0 16px 0 38px;
  border:1px solid var(--c-line);border-radius:999px;
  background:var(--c-bg);color:var(--c-text);font-size:14.5px;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.header-search input::placeholder{color:#93A0B4;}
.header-search input:focus{
  outline:none;border-color:var(--c-primary);background:#fff;
  box-shadow:0 0 0 3px var(--c-primary-soft);
}
.header-search i{
  position:absolute;left:15px;top:50%;transform:translateY(-50%);
  color:#93A0B4;font-size:14px;
}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-sm);cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--c-text);border-radius:2px;}
.mobile-drawer{display:none;background:#fff;border-top:1px solid var(--c-line);}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-inner{padding:18px 24px 26px;}
.mobile-drawer ul{display:flex;flex-direction:column;gap:4px;margin-bottom:18px;}
.mobile-drawer ul a{
  display:block;padding:12px 14px;border-radius:var(--radius-sm);
  font-size:16px;color:var(--c-text);font-weight:500;
}
.mobile-drawer ul a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.mobile-drawer .drawer-search{margin-bottom:14px;position:relative;}
.mobile-drawer .drawer-search input{
  width:100%;height:46px;border:1px solid var(--c-line);border-radius:var(--radius-sm);
  padding:0 16px 0 40px;background:var(--c-bg);font-size:15px;
}
.mobile-drawer .drawer-search i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:#93A0B4;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--c-line);}
.crumb-inner{padding:16px 0;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);}
.crumb-inner a{color:var(--c-text-2);}
.crumb-inner a:hover{color:var(--c-primary);}
.crumb-inner .sep{color:#C4CDDC;}
.crumb-inner .current{color:var(--c-text);font-weight:600;max-width:clamp(180px,42vw,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章主体 ---------- */
.article-main{padding:52px 0 80px;}
.article-shell{max-width:800px;margin:0 auto;}
.article-head{margin-bottom:32px;}
.article-head h1{font-size:38px;line-height:1.28;margin-bottom:18px;overflow-wrap:anywhere;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--c-text-2);}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:600;
}
.pill-accent{background:rgba(255,106,43,.10);color:var(--c-accent-dark);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C4CDDC;}
.article-figure{
  margin:0 0 36px;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--c-line);background:#fff;box-shadow:var(--shadow);
}
.article-figure img{width:100%;height:320px;object-fit:cover;}
.article-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:44px 48px;
}
.article-body{overflow-x:auto;font-size:17px;line-height:1.92;color:var(--c-text);}
.article-body > * + *{margin-top:1em;}
.article-body h2{font-size:26px;line-height:1.35;margin-top:2em;margin-bottom:.6em;padding-left:14px;border-left:4px solid var(--c-primary);}
.article-body h3{font-size:20.5px;line-height:1.4;margin-top:1.7em;margin-bottom:.55em;}
.article-body p{overflow-wrap:anywhere;}
.article-body strong{font-weight:700;color:var(--c-text);}
.article-body a{text-decoration:underline;text-underline-offset:3px;}
.article-body ul,
.article-body ol{margin:1em 0;padding-left:0;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.5em;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;
  width:7px;height:7px;border-radius:2px;background:var(--c-primary);
}
.article-body ol{counter-reset:artol;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:.5em;counter-increment:artol;}
.article-body ol li::before{
  content:counter(artol);
  position:absolute;left:0;top:.18em;
  width:21px;height:21px;border-radius:6px;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:12.5px;font-weight:700;line-height:21px;text-align:center;
}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;
  border-left:4px solid var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--c-text);
}
.article-body blockquote p{margin:0;}
.article-body img{max-width:100%;height:auto;border-radius:var(--radius);margin:26px auto;}
.article-body figure{margin:28px 0;}
.article-body figcaption{font-size:14px;color:var(--c-text-2);text-align:center;margin-top:10px;}
.article-body table{width:100%;min-width:560px;border-collapse:collapse;font-size:15.5px;margin:24px 0;}
.article-body th,
.article-body td{border:1px solid var(--c-line);padding:12px 14px;text-align:left;}
.article-body th{background:var(--c-bg);font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0;}
.empty-state{
  text-align:center;padding:56px 24px;
  border:1px dashed var(--c-line);border-radius:var(--radius);background:var(--c-bg);
}
.empty-state h2{font-size:22px;margin-bottom:12px;}
.empty-state p{color:var(--c-text-2);margin-bottom:22px;}

/* ---------- 相关推荐 ---------- */
.related{margin-top:56px;}
.related h2{font-size:22px;margin-bottom:18px;}
.related-list{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
}
.related-list li + li{border-top:1px solid var(--c-line);}
.related-list a{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 24px;color:var(--c-text);font-size:16px;font-weight:500;
  transition:background .2s ease,padding .2s ease;
}
.related-list a:hover{background:var(--c-primary-soft);color:var(--c-primary);padding-left:28px;}
.related-list span.tag{
  flex:0 0 auto;font-size:12.5px;font-weight:600;color:var(--c-text-2);
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:999px;padding:4px 12px;
}
.back-home{margin-top:26px;display:flex;justify-content:center;}

/* ---------- 文章页内 CTA ---------- */
.article-cta{
  margin-top:56px;
  background:linear-gradient(180deg,#EFF4FE 0%,#E7EEFC 100%);
  border:1px solid var(--c-primary-line);
  border-radius:var(--radius);
  padding:38px 40px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
}
.article-cta h3{font-size:21px;margin-bottom:8px;}
.article-cta p{color:var(--c-text-2);font-size:15px;}
.article-cta .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);margin-top:8px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;padding:64px 0 40px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand span:last-child{font-size:17px;font-weight:700;color:var(--c-text);}
.footer-desc{color:var(--c-text-2);font-size:14.5px;line-height:1.8;max-width:320px;}
.footer-col h4{font-size:15.5px;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:var(--c-text-2);font-size:14.5px;}
.footer-col a:hover{color:var(--c-primary);}
.footer-contact p{color:var(--c-text-2);font-size:14.5px;margin-bottom:10px;line-height:1.7;}
.footer-contact strong{color:var(--c-text);font-weight:600;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0 30px;border-top:1px solid var(--c-line);
  color:var(--c-text-2);font-size:13.5px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .header-search input{width:170px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .primary-nav a{padding:8px 10px;font-size:15px;}
  .header-search{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-panel{padding:34px 30px;}
  .article-head h1{font-size:32px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .primary-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{gap:14px;justify-content:space-between;}
  .header-actions{gap:10px;}
  .article-main{padding:36px 0 64px;}
  .article-head h1{font-size:27px;line-height:1.35;}
  .article-panel{padding:26px 20px;}
  .article-body{font-size:16.5px;line-height:1.88;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:19px;}
  .article-figure img{height:210px;}
  .article-cta{padding:28px 22px;}
  .article-cta .cta-actions{width:100%;}
  .article-cta .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 28px;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  h2.section-title{font-size:24px;}
}
@media (max-width:520px){
  .brand-text{font-size:16px;}
  .article-head h1{font-size:24px;}
  .pill{font-size:12px;padding:4px 10px;}
  .related-list a{padding:16px 16px;font-size:15px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1F5AE0;
  --c-primary-dark:#143E9E;
  --c-primary-soft:#EAF0FE;
  --c-accent:#FF6A2B;
  --c-accent-dark:#E4531A;
  --c-data:#12A171;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-line:#E3E9F2;
  --c-text:#0F1724;
  --c-text-2:#5A6679;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(15,23,36,.06);
  --shadow-hover:0 14px 34px rgba(15,23,36,.10);
  --space-section:88px;
  --space-section-m:52px;
  --container:1220px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB","Source Han Sans SC",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-weight:400;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;display:block;}
button,input,textarea{font:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{font-weight:700;letter-spacing:.01em;line-height:1.3;color:var(--c-text);}
h1{font-size:44px;}
h2{font-size:30px;}
h3{font-size:21px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--space-section) 0;}
.section--tight{padding:64px 0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(31,90,224,.18);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(31,90,224,.24);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 18px rgba(255,106,43,.26);}
.btn-accent:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:#C9D8F8;}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px);}
.btn-link{display:inline-flex;align-items:center;gap:6px;padding:0;color:var(--c-primary);font-weight:600;}
.btn-link i{transition:transform .2s ease;font-size:14px;}
.btn-link:hover i{transform:translateX(4px);}
.btn-block{width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--c-line);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;font-size:18.5px;font-weight:700;color:var(--c-text);letter-spacing:.01em;flex:0 0 auto;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;letter-spacing:0;
  box-shadow:0 6px 14px rgba(31,90,224,.24);
}
.primary-nav{flex:1 1 auto;min-width:0;}
.primary-nav ul{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;}
.primary-nav a{
  display:inline-block;padding:8px 15px;border-radius:999px;
  font-size:15.5px;color:var(--c-text-2);font-weight:500;
}
.primary-nav a:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.primary-nav a.is-active{color:var(--c-primary);background:var(--c-primary-soft);font-weight:700;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search i{position:absolute;left:14px;color:#9AA6B8;font-size:14px;pointer-events:none;}
.nav-search input{
  width:206px;height:42px;
  padding:0 14px 0 36px;
  border:1px solid var(--c-line);border-radius:999px;
  background:#F8FAFD;font-size:14.5px;color:var(--c-text);
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:#9AA6B8;}
.nav-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(31,90,224,.10);}
.nav-cta{padding:12px 22px;font-size:15.5px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--c-line);background:#fff;color:var(--c-text);
  align-items:center;justify-content:center;font-size:18px;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.nav-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:#fff;
  padding:18px 0 26px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer ul{display:flex;flex-direction:column;gap:6px;margin-bottom:16px;}
.nav-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 16px;border-radius:var(--radius-sm);
  font-size:16px;color:var(--c-text);background:#F8FAFD;
}
.nav-drawer a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:700;}
.nav-drawer .drawer-search{margin-bottom:14px;}
.nav-drawer .drawer-search input{width:100%;height:46px;padding:0 16px;border:1px solid var(--c-line);border-radius:var(--radius-sm);background:#F8FAFD;}
.nav-drawer .drawer-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;}

/* ---------- 页头 ---------- */
.page-hero{
  background:var(--c-bg);
  background-image:linear-gradient(180deg,rgba(255,255,255,.92),rgba(245,247,251,.92)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  padding:60px 0 66px;
  border-bottom:1px solid var(--c-line);
}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-text-2);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb i{font-size:10px;color:#A9B4C5;}
.page-hero h1{max-width:880px;margin-bottom:18px;}
.page-hero .lede{max-width:720px;font-size:18px;color:var(--c-text-2);line-height:1.85;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);
  font-size:13.5px;color:var(--c-text-2);
}
.tag--accent{background:rgba(255,106,43,.10);border-color:rgba(255,106,43,.28);color:#C64A12;font-weight:600;}
.tag--data{background:rgba(18,161,113,.10);border-color:rgba(18,161,113,.26);color:#0C7C56;font-weight:600;}

/* ---------- 通用标题 ---------- */
.section-head{max-width:760px;margin-bottom:46px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:700;color:var(--c-primary);
  letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--c-text-2);font-size:17px;}

/* ---------- 交替图文行 ---------- */
.feature-rows{background:#fff;}
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;
  gap:64px;align-items:center;
  padding:66px 0;
  border-bottom:1px solid var(--c-line);
}
.feature-row:last-child{border-bottom:0;}
.feature-row.is-reverse .feature-media{order:2;}
.feature-media{position:relative;}
.feature-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  border:1px solid var(--c-line);
}
.feature-media::after{
  content:"";position:absolute;left:-12px;bottom:-12px;
  width:78px;height:78px;border-radius:12px;
  background:var(--c-primary-soft);z-index:-1;
}
.feature-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:10px;
  background:var(--c-accent);color:#fff;font-weight:700;font-size:15px;
  margin-bottom:20px;
}
.feature-copy h3{font-size:26px;margin-bottom:14px;}
.feature-copy p{color:var(--c-text-2);margin-bottom:20px;}
.feature-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px;}
.feature-list li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--c-text);}
.feature-list li i{color:var(--c-data);font-size:15px;margin-top:5px;flex:0 0 auto;}

/* ---------- 指标带 ---------- */
.metric-band{background:var(--c-bg);}
.metric-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.metric-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  padding:30px 26px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(31,90,224,.2);}
.metric-value{font-size:36px;font-weight:700;color:var(--c-data);line-height:1.1;margin-bottom:8px;letter-spacing:-.01em;}
.metric-label{font-size:15.5px;font-weight:600;color:var(--c-text);margin-bottom:6px;}
.metric-desc{font-size:14px;color:var(--c-text-2);line-height:1.7;}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative;}
.step{
  position:relative;padding:0 32px;
  border-left:1px solid var(--c-line);
}
.step:first-child{border-left:0;padding-left:0;}
.step:last-child{padding-right:0;}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:50%;
  background:var(--c-accent);color:#fff;font-weight:700;font-size:15px;
  margin-bottom:20px;
}
.step h3{font-size:20px;margin-bottom:10px;}
.step p{color:var(--c-text-2);font-size:15.5px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--c-primary);
  color:#fff;
  border-radius:var(--radius);
  padding:56px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  box-shadow:0 18px 40px rgba(31,90,224,.22);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;
  width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.86);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* ---------- 表单 ---------- */
.apply-wrap{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);padding:44px;margin-top:34px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px 26px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:14.5px;font-weight:600;color:var(--c-text);}
.field input,.field textarea{
  width:100%;height:48px;padding:0 16px;
  border:1px solid var(--c-line);border-radius:var(--radius-sm);
  background:#F8FAFD;font-size:15.5px;
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:118px;padding:14px 16px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(31,90,224,.10);}
.field .hint{font-size:13.5px;color:var(--c-text-2);}
.form-foot{display:flex;align-items:center;gap:18px;margin-top:26px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-text);margin-bottom:16px;}
.footer-brand:hover{color:var(--c-text);}
.footer-desc{font-size:14.5px;color:var(--c-text-2);line-height:1.85;max-width:340px;}
.footer-col h4{font-size:15.5px;margin-bottom:16px;color:var(--c-text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14.5px;color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-primary);}
.footer-contact p{font-size:14.5px;color:var(--c-text-2);line-height:1.85;margin-bottom:9px;}
.footer-contact strong{color:var(--c-text);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--c-text-2);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--space-section:76px;}
  h1{font-size:40px;}
  h2{font-size:27px;}
  .feature-row{gap:44px;}
  .nav-search input{width:170px;}
}
@media (max-width:991px){
  :root{--space-section:64px;}
  h1{font-size:35px;}
  h2{font-size:25px;}
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .primary-nav{display:none;}
  .feature-row{grid-template-columns:1fr;gap:32px;padding:52px 0;}
  .feature-row.is-reverse .feature-media{order:0;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;gap:34px;}
  .step{border-left:0;padding:0 0 0 0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 36px;}
  .apply-wrap{padding:32px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  h1{font-size:29px;}
  h2{font-size:23px;}
  h3{font-size:19px;}
  .container{padding:0 18px;}
  .page-hero{padding:44px 0 48px;}
  .page-hero .lede{font-size:16.5px;}
  .feature-copy h3{font-size:22px;}
  .metric-grid{grid-template-columns:1fr;gap:18px;}
  .metric-value{font-size:32px;}
  .section{padding:var(--space-section-m) 0;}
  .cta-band{padding:36px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .apply-wrap{padding:24px;}
  .form-foot .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1F5AE0;
  --c-primary-dark:#143E9E;
  --c-accent:#FF6A2B;
  --c-data:#12A171;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-line:#E3E9F2;
  --c-text:#0F1724;
  --c-text-2:#5A6679;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(15,23,36,.06);
  --shadow-hover:0 14px 34px rgba(15,23,36,.10);
  --container:1220px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;line-height:1.3;letter-spacing:.01em;color:var(--c-text);}
h1{font-size:44px;}
h2{font-size:30px;}
h3{font-size:21px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

/* ---------- 容器与栅格修正 ---------- */
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
.row{max-width:var(--container);margin-left:auto;margin-right:auto;}
.row .row{max-width:none;margin-left:-14px;margin-right:-14px;}
.columns{padding-left:14px;padding-right:14px;}
[class*="column"]+[class*="column"]:last-child{float:none;}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;font-size:16px;font-weight:600;line-height:1;
  border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(31,90,224,.20);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,106,43,.24);}
.btn-accent:hover{background:#F05A18;color:#fff;transform:translateY(-1px);}
.btn-ghost{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-line);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-dark);transform:translateY(-1px);}
.btn-sm{padding:11px 20px;font-size:15px;}
.btn-block{width:100%;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary);
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-link i{transition:transform .2s ease;}
.btn-link:hover i{transform:translateX(4px);}
.eyebrow{
  display:inline-block;padding:5px 12px;font-size:13.5px;font-weight:600;letter-spacing:.06em;
  color:var(--c-primary);background:#EAF0FE;border-radius:4px;margin-bottom:16px;
}
.eyebrow-accent{color:#B4441A;background:#FFF0E8;}
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head p{color:var(--c-text-2);font-size:17px;margin-bottom:0;}
.section-head h2{margin-bottom:14px;}
.text-muted{color:var(--c-text-2);}

/* ---------- 页头导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
}
.header-inner{
  display:flex;align-items:center;gap:28px;min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--c-text);flex-shrink:0;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;
}
.brand-text{letter-spacing:.02em;}
.primary-nav{flex:1;}
.primary-nav ul{display:flex;align-items:center;gap:6px;}
.primary-nav a{
  display:block;padding:10px 14px;font-size:15.5px;font-weight:500;color:var(--c-text-2);
  border-radius:8px;position:relative;
}
.primary-nav a:hover{color:var(--c-primary);background:#F2F6FF;}
.primary-nav a.is-active{color:var(--c-primary);font-weight:600;}
.primary-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.search-box{position:relative;}
.search-box input{
  width:196px;height:42px;padding:0 38px 0 16px;font-size:14.5px;color:var(--c-text);
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:21px;
  transition:border-color .2s ease,background-color .2s ease,width .25s ease;
}
.search-box input::placeholder{color:#97A2B4;}
.search-box input:focus{outline:none;border-color:var(--c-primary);background:#fff;width:230px;}
.search-box i{
  position:absolute;right:14px;top:50%;transform:translateY(-50%);
  color:#98A3B6;font-size:14px;pointer-events:none;
}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;color:var(--c-text);font-size:17px;cursor:pointer;
}
.mobile-drawer{
  display:none;border-top:1px solid var(--c-line);background:#fff;padding:16px 24px 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer ul{margin-bottom:14px;}
.mobile-drawer ul li a{
  display:block;padding:13px 4px;font-size:16px;font-weight:500;color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
.mobile-drawer ul li a.is-active{color:var(--c-primary);font-weight:600;}
.mobile-drawer .search-box{margin-bottom:14px;}
.mobile-drawer .search-box input{width:100%;border-radius:12px;}
.mobile-drawer .btn{width:100%;}

/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;padding:74px 0 68px;background:var(--c-surface);overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;background:rgba(255,255,255,.92);
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);margin-bottom:22px;}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{color:#B9C2D0;}
.page-hero h1{max-width:820px;margin-bottom:18px;}
.page-hero .lede{max-width:660px;font-size:18px;color:var(--c-text-2);margin-bottom:34px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:14px;
}
.fact-pill{
  display:inline-flex;align-items:center;gap:9px;padding:10px 18px;background:#fff;
  border:1px solid var(--c-line);border-radius:99px;font-size:14.5px;color:var(--c-text-2);
  box-shadow:var(--shadow);
}
.fact-pill i{color:var(--c-primary);font-size:14px;}
.fact-pill strong{color:var(--c-text);font-weight:600;}

/* ---------- 编号清单 ---------- */
.main-grid{padding-top:84px;}
.flow-list{counter-reset:step;}
.flow-item{
  display:flex;gap:22px;padding:0 0 34px;position:relative;
}
.flow-item::before{
  content:"";position:absolute;left:23px;top:52px;bottom:6px;width:1px;background:var(--c-line);
}
.flow-item:last-child{padding-bottom:0;}
.flow-item:last-child::before{display:none;}
.step-num{
  flex-shrink:0;width:48px;height:48px;border-radius:50%;background:#FFF0E8;color:#B4441A;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  border:1px solid #FFD9C6;
}
.flow-body{
  flex:1;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:26px 28px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.flow-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(31,90,224,.2);}
.flow-body h3{margin-bottom:10px;font-size:20px;}
.flow-body p{margin-bottom:0;color:var(--c-text-2);font-size:16px;}
.flow-meta{
  display:inline-flex;align-items:center;gap:7px;margin-top:14px;padding:5px 12px;
  background:#EEF7F3;color:#0C7A56;border-radius:6px;font-size:13.5px;font-weight:600;
}
.flow-meta i{font-size:12px;}

/* ---------- 侧栏 ---------- */
.side-stack{display:flex;flex-direction:column;gap:24px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:28px 26px;
}
.side-card h3{font-size:18.5px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--c-line);}
.side-list li{
  display:flex;gap:12px;padding:11px 0;font-size:15.5px;color:var(--c-text-2);
  border-bottom:1px dashed var(--c-line);
}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list i{color:var(--c-primary);font-size:13px;margin-top:7px;}
.side-list strong{color:var(--c-text);font-weight:600;display:block;font-size:15.5px;}
.side-media{margin:22px 0 20px;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--c-line);}
.side-media img{width:100%;height:170px;object-fit:cover;}
.side-note{font-size:13.5px;color:#8A96A8;margin:14px 0 0;text-align:center;}
.side-card-accent{background:#F2F6FF;border-color:#D6E2FF;}

/* ---------- 合作类型标签组 ---------- */
.type-strip{
  margin-top:8px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 28px;
}
.type-strip h3{font-size:18px;margin-bottom:16px;}
.type-chips{display:flex;flex-wrap:wrap;gap:12px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:99px;
  background:var(--c-bg);border:1px solid var(--c-line);font-size:14.5px;color:var(--c-text-2);
  transition:all .2s ease;
}
.chip i{color:var(--c-primary);font-size:13px;}
.chip:hover{border-color:rgba(31,90,224,.35);color:var(--c-primary);background:#F2F6FF;}

/* ---------- 保障带 ---------- */
.assurance{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.assurance-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.assurance-item{padding:8px 0 8px 22px;border-left:2px solid var(--c-primary);}
.assurance-item h3{font-size:18px;margin-bottom:8px;}
.assurance-item p{color:var(--c-text-2);font-size:15.5px;margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  background:#0F1724;color:#fff;border-radius:0;padding:76px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:48px;flex-wrap:wrap;}
.cta-copy{max-width:640px;}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.72);font-size:17px;margin-bottom:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff;border-color:#fff;}
.cta-note{margin-top:18px;font-size:14px;color:rgba(255,255,255,.55);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:70px 0 30px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:42px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--c-text);margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;font-size:16px;border-radius:9px;}
.footer-desc{color:var(--c-text-2);font-size:15px;max-width:330px;margin-bottom:0;}
.footer-col h4{font-size:16px;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{color:var(--c-text-2);font-size:15px;}
.footer-col ul li a:hover{color:var(--c-primary);}
.footer-contact p{color:var(--c-text-2);font-size:14.5px;margin-bottom:10px;line-height:1.7;}
.footer-contact strong{color:var(--c-text);font-weight:600;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:14px;color:var(--c-text-2);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  h1{font-size:40px;}
  .search-box input{width:160px;}
}
@media screen and (max-width:991px){
  .section{padding:64px 0;}
  .main-grid{padding-top:60px;}
  .primary-nav{display:none;}
  .header-actions .search-box,.header-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-inner{justify-content:space-between;}
  .assurance-grid{grid-template-columns:1fr;gap:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-inner{gap:28px;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  h1{font-size:30px;}
  h2{font-size:23px;}
  .section{padding:52px 0;}
  .section-sm{padding:44px 0;}
  .page-hero{padding:48px 0 46px;}
  .page-hero .lede{font-size:16.5px;margin-bottom:26px;}
  .hero-facts{gap:10px;}
  .fact-pill{font-size:13.5px;padding:9px 14px;}
  .main-grid{padding-top:48px;}
  .flow-item{gap:16px;padding-bottom:26px;}
  .step-num{width:42px;height:42px;font-size:15px;}
  .flow-item::before{left:20px;top:46px;}
  .flow-body{padding:22px 20px;}
  .side-card{padding:24px 20px;}
  .type-strip{padding:22px 20px;}
  .cta-band{padding:56px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media screen and (max-width:519px){
  .container{padding:0 18px;}
  .brand-text{font-size:17px;}
  .flow-body h3{font-size:18.5px;}
  .chip{font-size:13.5px;padding:8px 13px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1F5AE0;
  --c-primary-dark:#143E9E;
  --c-primary-soft:#EEF3FF;
  --c-accent:#FF6A2B;
  --c-accent-dark:#E4551A;
  --c-data:#12A171;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-line:#E3E9F2;
  --c-text:#0F1724;
  --c-text-2:#5A6679;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(15,23,36,.06);
  --shadow-hover:0 14px 34px rgba(15,23,36,.10);
  --container:1220px;
  --gap:28px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{line-height:1.3;letter-spacing:.01em;margin:0 0 .6em;font-weight:700;color:var(--c-text);}
h1{font-size:44px;}
h2{font-size:30px;}
h3{font-size:21px;}
h4{font-size:17px;}
p{margin:0 0 1em;color:var(--c-text-2);}
ul,ol{margin:0 0 1em;padding-left:1.25em;}
li{margin-bottom:.4em;color:var(--c-text-2);}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;line-height:1;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;}
.btn-accent{background:var(--c-accent);color:#fff;border-color:var(--c-accent);box-shadow:0 6px 18px rgba(255,106,43,.25);}
.btn-accent:hover{background:var(--c-accent-dark);border-color:var(--c-accent-dark);color:#fff;}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:rgba(31,90,224,.35);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary);}
.btn-light{background:#fff;color:var(--c-primary-dark);border-color:#fff;}
.btn-light:hover{background:#fff;color:var(--c-primary);}
.btn-sm{padding:10px 20px;font-size:15px;}
.btn-block{width:100%;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary);padding:0;
}
.btn-link .arrow{transition:transform .2s ease;display:inline-block;}
.btn-link:hover .arrow{transform:translateX(4px);}

/* 标签与徽章 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1.5;
  background:var(--c-primary-soft);color:var(--c-primary-dark);border:1px solid rgba(31,90,224,.14);
}
.tag-accent{background:rgba(255,106,43,.1);color:var(--c-accent-dark);border-color:rgba(255,106,43,.2);}
.tag-data{background:rgba(18,161,113,.1);color:var(--c-data);border-color:rgba(18,161,113,.2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:14px;font-weight:700;color:var(--c-primary-dark);letter-spacing:.08em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:inline-block;}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:70px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--c-text);}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:34px;height:34px;border-radius:9px;flex-shrink:0;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;letter-spacing:0;
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.primary-nav{margin-left:8px;}
.primary-nav ul{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.primary-nav li{margin:0;}
.primary-nav a{
  display:block;padding:10px 14px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:500;color:var(--c-text-2);position:relative;white-space:nowrap;
}
.primary-nav a:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.primary-nav a.is-active{color:var(--c-primary);font-weight:700;background:var(--c-primary-soft);}
.primary-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.header-search input{
  height:42px;width:190px;margin:0;padding:0 16px;
  border:1px solid var(--c-line);border-radius:999px;background:var(--c-bg);
  font-size:15px;color:var(--c-text);transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.header-search input::placeholder{color:#94A0B3;}
.header-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(31,90,224,.12);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--radius-sm);
  background:#fff;padding:0;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;transition:.2s ease;}
.mobile-drawer{display:none;border-top:1px solid var(--c-line);background:#fff;padding:16px 0 20px;}
.mobile-drawer.is-open{display:block;}
.mobile-drawer ul{list-style:none;margin:0 0 16px;padding:0;}
.mobile-drawer li{margin:0;border-bottom:1px solid var(--c-line);}
.mobile-drawer li:last-child{border-bottom:0;}
.mobile-drawer a{display:block;padding:14px 24px;font-size:16px;font-weight:600;color:var(--c-text);}
.mobile-drawer a.is-active{color:var(--c-primary);background:var(--c-primary-soft);}
.mobile-drawer .drawer-foot{padding:0 24px;display:flex;flex-direction:column;gap:12px;}
.mobile-drawer .header-search{display:block;}
.mobile-drawer .header-search input{width:100%;}

/* 页头 */
.page-hero{
  position:relative;background-color:var(--c-bg);
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:72px 0 68px;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.88) 60%,rgba(245,247,251,.96) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);margin-bottom:20px;list-style:none;padding:0;}
.breadcrumb li{margin:0;color:var(--c-text-2);}
.breadcrumb .sep{color:#AEB8C7;}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.page-hero h1{max-width:860px;margin-bottom:20px;font-size:46px;}
.hero-lead{max-width:720px;font-size:18px;line-height:1.85;color:var(--c-text-2);margin-bottom:26px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;}

/* 板块 */
.section{padding:88px 0;}
.section-alt{background:var(--c-surface);}
.section-bg{background:var(--c-bg);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:17px;margin-bottom:0;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* 保障能力 */
.capability-top{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;margin-bottom:56px;}
.capability-figure{border-radius:var(--radius);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow);background:#fff;}
.capability-figure img{width:100%;height:340px;object-fit:cover;}
.capability-copy h2{margin-bottom:16px;}
.capability-copy ul{list-style:none;padding:0;margin:0;}
.capability-copy li{position:relative;padding-left:26px;margin-bottom:12px;font-size:16px;}
.capability-copy li::before{
  content:"";position:absolute;left:0;top:11px;width:10px;height:10px;border-radius:3px;
  background:rgba(31,90,224,.18);border:2px solid var(--c-primary);
}
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.cap-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cap-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(31,90,224,.28);}
.cap-icon{
  width:46px;height:46px;border-radius:12px;margin-bottom:18px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.cap-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.cap-card h3{font-size:19px;margin-bottom:10px;}
.cap-card p{font-size:15px;margin-bottom:0;line-height:1.75;}

/* 对比表 */
.table-wrap{
  overflow-x:auto;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius);box-shadow:var(--shadow);-webkit-overflow-scrolling:touch;
}
.compare-table{width:100%;min-width:820px;border-collapse:collapse;font-size:16px;}
.compare-table thead th{
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  font-size:16px;font-weight:700;text-align:left;padding:20px 22px;border-bottom:1px solid rgba(31,90,224,.16);
  white-space:nowrap;
}
.compare-table thead th:first-child{color:var(--c-text);background:#F0F3F9;}
.compare-table tbody td{
  padding:18px 22px;border-bottom:1px solid var(--c-line);vertical-align:top;color:var(--c-text-2);line-height:1.7;
}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr:hover td{background:#FAFBFE;}
.compare-table tbody th{
  text-align:left;font-weight:600;color:var(--c-text);padding:18px 22px;
  border-bottom:1px solid var(--c-line);background:#FBFCFE;white-space:nowrap;
}
.compare-table .cell-strong{color:var(--c-text);font-weight:600;}
.compare-table .cell-data{color:var(--c-data);font-weight:600;}
.table-note{margin:16px 0 0;font-size:14px;color:var(--c-text-2);}
.plan-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}

/* FAQ */
.faq-list{max-width:920px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);
  margin-bottom:14px;box-shadow:var(--shadow);overflow:hidden;transition:border-color .2s ease;
}
.faq-item:hover{border-color:rgba(31,90,224,.28);}
.faq-item.is-open{border-color:rgba(31,90,224,.4);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:18px;font-weight:600;color:var(--c-text);line-height:1.5;
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  position:relative;width:22px;height:22px;flex-shrink:0;border-radius:50%;
  background:var(--c-primary-soft);transition:background-color .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .2s ease,background-color .2s ease;
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;}
.faq-item.is-open .faq-icon{background:var(--c-accent);}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:#fff;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 24px 22px;font-size:16px;line-height:1.85;color:var(--c-text-2);}
.faq-a-inner p:last-child{margin-bottom:0;}

/* 页内 CTA 带 */
.cta-band{
  background:var(--c-primary);
  color:#fff;padding:72px 0;
}
.cta-band h2{color:#fff;margin-bottom:14px;font-size:32px;}
.cta-band p{color:rgba(255,255,255,.88);font-size:17px;max-width:640px;margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.cta-points{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px;padding-top:26px;border-top:1px solid rgba(255,255,255,.22);}
.cta-points span{font-size:15px;color:rgba(255,255,255,.9);display:inline-flex;align-items:center;gap:8px;}
.cta-points span::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--c-accent);display:inline-block;}

/* 页脚 */
.site-footer{background:var(--c-surface);border-top:1px solid var(--c-line);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);margin-bottom:16px;}
.footer-brand:hover{color:var(--c-text);}
.footer-brand span:last-child{font-size:19px;font-weight:700;}
.footer-desc{font-size:15px;line-height:1.8;color:var(--c-text-2);margin-bottom:0;max-width:340px;}
.footer-col h4{font-size:16px;margin-bottom:18px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:15px;color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-primary);}
.footer-contact p{font-size:15px;color:var(--c-text-2);margin-bottom:10px;line-height:1.7;}
.footer-contact strong{color:var(--c-text);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:14px;color:var(--c-text-2);
}

/* 响应式 */
@media (max-width:1199px){
  h1{font-size:40px;}
  .page-hero h1{font-size:40px;}
  .header-search input{width:150px;}
  .cap-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .primary-nav{display:none;}
  .header-search{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-accent{display:none;}
  .section{padding:72px 0;}
  .capability-top{grid-template-columns:1fr;gap:32px;}
  .capability-figure img{height:280px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-desc{max-width:none;}
}
@media (max-width:767px){
  body{font-size:16px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .header-inner{height:64px;gap:12px;}
  .brand-text{font-size:17px;}
  .page-hero{padding:48px 0 52px;}
  .page-hero h1{font-size:29px;}
  .hero-lead{font-size:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .cap-grid{grid-template-columns:1fr;gap:20px;}
  .capability-figure img{height:220px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 20px;font-size:15px;}
  .cta-band{padding:54px 0;}
  .cta-band h2{font-size:24px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .compare-table{min-width:720px;font-size:15px;}
  .compare-table thead th,.compare-table tbody th,.compare-table tbody td{padding:14px 16px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .page-hero h1{font-size:26px;}
  .hero-meta .tag{font-size:12px;}
}