/* roulang page: index */
:root{
  --c-primary:#1A2E6E;
  --c-primary-600:#14245A;
  --c-primary-050:#EEF2FB;
  --c-accent:#F0772C;
  --c-accent-600:#D9641F;
  --c-teal:#2C8FA8;
  --c-teal-ink:#226F83;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E4E9F3;
  --c-ink:#1F2B45;
  --c-ink-2:#5F6E8C;
  --c-ok:#2E9A72;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(26,46,110,.05), 0 12px 28px rgba(26,46,110,.07);
  --sh-2:0 4px 10px rgba(26,46,110,.08), 0 18px 36px rgba(26,46,110,.10);
  --nav-w:236px;
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--c-accent);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-primary);font-weight:700;letter-spacing:.2px;}
h1{font-size:42px;line-height:1.28;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:21px;line-height:1.45;font-weight:600;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num,.time{font-variant-numeric:tabular-nums;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,.accordion-title:focus-visible{
  outline:2px solid var(--c-primary);outline-offset:2px;
}
::selection{background:var(--c-primary-050);color:var(--c-primary);}

.grid-container{max-width:1200px;margin:0 auto;padding:0 48px;width:100%;}
.grid-container.fluid{max-width:1200px;}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-x > .cell{min-width:0;}
.cell{flex:1 1 0;}

/* ---------- 左侧导航 / 顶部移动导航 ---------- */
.site-nav{
  background:var(--c-surface);
  z-index:70;
}
.nav-brand{display:flex;align-items:center;justify-content:space-between;}
.brand-link{display:flex;align-items:center;gap:10px;color:var(--c-primary);font-weight:700;font-size:16px;line-height:1.3;}
.brand-link:hover{color:var(--c-primary-600);}
.brand-mark{width:30px;height:30px;flex:none;}
.brand-text{white-space:nowrap;}
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--c-primary);border-radius:2px;transition:.22s ease;}
.site-nav.is-open .nav-toggle span:nth-child(1){transform:translateY(5.6px) rotate(45deg);}
.site-nav.is-open .nav-toggle span:nth-child(2){opacity:0;}
.site-nav.is-open .nav-toggle span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg);}
.nav-item{
  display:flex;align-items:center;
  height:44px;padding:0 16px;border-radius:8px;
  font-size:14.5px;font-weight:500;color:var(--c-ink);
  position:relative;transition:.22s ease;
}
.nav-item:hover{background:rgba(238,242,251,.6);color:var(--c-primary);}
.nav-item.is-active{background:var(--c-primary-050);color:var(--c-primary);font-weight:600;}
.nav-item.is-active::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:0 3px 3px 0;background:var(--c-primary);}
.nav-group-title{font-size:12.5px;font-weight:600;color:var(--c-ink-2);letter-spacing:1px;padding:18px 16px 8px;}
.nav-cta{margin-top:auto;padding-top:16px;}

@media screen and (min-width:1025px){
  .site-nav{position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);border-right:1px solid var(--c-line);display:flex;flex-direction:column;padding:0 14px 18px;}
  .nav-brand{height:72px;padding:0 4px;}
  .nav-toggle{display:none;}
  .nav-body{display:flex;flex-direction:column;flex:1;overflow-y:auto;}
  .page-wrap{margin-left:var(--nav-w);}
}
@media screen and (max-width:1024px){
  .site-nav{position:sticky;top:0;border-bottom:1px solid var(--c-line);box-shadow:0 2px 10px rgba(26,46,110,.05);}
  .nav-brand{height:64px;padding:0 20px;}
  .nav-body{
    position:fixed;top:64px;left:0;right:0;bottom:0;background:#fff;
    padding:10px 20px 28px;overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
    border-top:1px solid var(--c-line);
  }
  .site-nav.is-open .nav-body{opacity:1;visibility:visible;transform:none;}
  .nav-list li + li{border-top:1px solid var(--c-line);}
  .nav-item{height:48px;border-radius:0;padding:0 4px;font-size:15px;}
  .nav-item.is-active{background:transparent;padding-left:12px;}
  .nav-cta{padding-top:22px;}
}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sec) 0;}
.section.tight{padding:64px 0;}
.section.band{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.sec-head{margin-bottom:32px;}
.sec-title{display:flex;align-items:center;gap:12px;}
.sec-title::before{content:"";width:8px;height:8px;flex:none;background:var(--c-accent);border-radius:2px;transform:rotate(45deg);}
.sec-sub{margin-top:12px;color:var(--c-ink-2);font-size:16px;max-width:640px;}
.sec-head.split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- 按钮 / 徽章 / 表单 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;}
.btn-primary:hover{background:var(--c-accent-600);color:#fff;box-shadow:0 12px 24px rgba(240,119,44,.26);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border:1.5px solid var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-050);color:var(--c-primary);}
.btn-ghost:active{transform:translateY(1px);}
.btn-md{height:42px;padding:0 18px;font-size:15px;}
.btn-block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.link-more:hover{color:var(--c-accent);}
.link-more i{font-size:12px;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:1.5;}
.badge-teal{background:rgba(44,143,168,.12);color:var(--c-teal-ink);}
.badge-blue{background:var(--c-primary-050);color:var(--c-primary);}
.badge-ok{background:rgba(46,154,114,.12);color:#24785a;}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--c-surface);border-bottom:1px solid var(--c-line);overflow:hidden;padding:72px 0;min-height:520px;display:flex;align-items:center;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(26,46,110,.30) 1px,transparent 1.4px);
  background-size:26px 26px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85) 0%,rgba(0,0,0,.25) 62%,transparent 100%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85) 0%,rgba(0,0,0,.25) 62%,transparent 100%);
  opacity:.28;
}
.hero .grid-container{position:relative;z-index:1;}
.hero-grid{gap:48px;align-items:center;}
.hero-copy{flex:1 1 460px;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--c-teal-ink);background:rgba(44,143,168,.10);border-radius:999px;padding:5px 12px;margin-bottom:20px;}
.hero h1{font-size:43px;max-width:620px;}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:540px;}
.hero-actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-trust{margin-top:30px;display:flex;flex-wrap:wrap;gap:22px;}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-2);}
.trust-item svg{color:var(--c-primary);flex:none;}
.hero-media{flex:0 1 470px;margin-top:-24px;}
.hero-card{background:#fff;border:1px solid var(--c-line);border-radius:16px;overflow:hidden;box-shadow:var(--sh-2);}
.hero-card img{width:100%;aspect-ratio:4/3;object-fit:cover;object-position:center;}
.hero-card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;}
.hero-card-foot span{font-size:13.5px;color:var(--c-ink-2);}
@media screen and (max-width:1024px){
  .hero{padding:52px 0;min-height:0;}
  .hero h1{font-size:34px;}
  .hero-media{flex:1 1 100%;margin-top:8px;}
}
@media screen and (max-width:640px){
  .hero{padding:40px 0;}
  .hero h1{font-size:30px;line-height:1.32;}
  .hero-actions .btn{flex:1 1 auto;}
}

/* ---------- 三步上手 ---------- */
.steps-flow{position:relative;display:flex;flex-wrap:wrap;gap:26px;}
.steps-flow::before{
  content:"";position:absolute;left:8%;right:8%;top:48px;height:0;
  border-top:2px dashed var(--c-line);z-index:0;
}
.step-card{
  position:relative;z-index:1;flex:1 1 300px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:30px 24px 22px;transition:transform .22s ease,box-shadow .22s ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.step-card:nth-child(3){transform:translateY(-16px);}
.step-card:nth-child(3):hover{transform:translateY(-19px);}
.step-index{
  width:40px;height:40px;border-radius:50%;background:#fff;
  border:2px solid var(--c-accent);color:var(--c-accent);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  margin-bottom:18px;
}
.step-card h3{font-size:20px;}
.step-card p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}
.step-card .link-more{margin-top:18px;}
@media screen and (max-width:1024px){
  .steps-flow::before{display:none;}
  .step-card:nth-child(3),.step-card:nth-child(3):hover{transform:none;}
  .step-card:nth-child(3):hover{transform:translateY(-3px);}
}

/* ---------- 准备清单 ---------- */
.prep-grid{gap:24px;}
.prep-grid > .cell{flex:1 1 240px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;transition:transform .22s ease,box-shadow .22s ease;}
.prep-grid > .cell:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.prep-ico{width:42px;height:42px;border-radius:12px;background:var(--c-primary-050);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:16px;}
.prep-grid h3{font-size:18px;}
.prep-grid p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--c-ink-2);}

/* ---------- 案例证明 ---------- */
.proof-row{display:flex;flex-wrap:wrap;gap:44px;align-items:center;margin-bottom:52px;}
.proof-row.reverse{flex-direction:row-reverse;}
.proof-media{flex:1 1 380px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-1);}
.proof-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.proof-body{flex:1 1 340px;}
.proof-quote{font-size:18px;line-height:1.8;color:var(--c-ink);border-left:3px solid var(--c-primary);padding-left:18px;}
.proof-from{margin-top:14px;font-size:14px;color:var(--c-ink-2);}
.metric-band{
  display:flex;flex-wrap:wrap;gap:20px;
  background:var(--c-primary-050);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:30px 32px;
}
.metric{flex:1 1 170px;}
.metric .val{font-size:32px;font-weight:700;color:var(--c-primary);line-height:1.2;font-variant-numeric:tabular-nums;}
.metric .val small{font-size:14px;font-weight:500;color:var(--c-ink-2);margin-left:4px;}
.metric .lb{margin-top:6px;font-size:14px;color:var(--c-ink-2);}

/* ---------- 最新信息 ---------- */
.cms-news-block{position:relative;}
.cms-news-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}
.cms-news-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);color:var(--c-ink);
  transition:transform .22s ease,box-shadow .22s ease;
}
.cms-news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);color:var(--c-ink);}
.cms-news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.cms-news-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;}
.cms-news-body h3{font-size:18px;line-height:1.5;transition:color .22s ease;}
.cms-news-card:hover h3{color:var(--c-primary-600);}
.cms-news-sum{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--c-ink-2);}
.cms-news-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;}
.cms-news-meta .time{font-size:13px;color:var(--c-ink-2);}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-news-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);
  color:var(--c-ink-2);text-align:center;padding:32px;
}
.cms-news-empty i{font-size:26px;color:var(--c-primary);opacity:.6;}
@media screen and (max-width:1024px){.cms-news-list{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media screen and (max-width:640px){.cms-news-list{grid-template-columns:1fr;}}

/* ---------- 服务支持 ---------- */
.serv-list{display:flex;flex-wrap:wrap;gap:24px;}
.serv-item{
  flex:1 1 260px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.serv-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.serv-item .badge{margin-bottom:14px;}
.serv-item h3{font-size:18px;}
.serv-item p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--c-ink-2);}
.serv-item ul{margin-top:14px;}
.serv-item li{position:relative;padding-left:18px;font-size:14.5px;color:var(--c-ink-2);line-height:2;}
.serv-item li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--c-primary);}

/* ---------- FAQ ---------- */
.faq-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;overflow:hidden;box-shadow:var(--sh-1);}
.faq-wrap .accordion{border:0;background:transparent;margin:0;}
.faq-wrap .accordion-item{border-bottom:1px solid var(--c-line);}
.faq-wrap .accordion-item:last-child{border-bottom:0;}
.faq-wrap .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;border:0;background:transparent;
  font-size:16px;font-weight:600;color:var(--c-primary);line-height:1.6;
}
.faq-wrap .accordion-title:hover{background:rgba(238,242,251,.5);color:var(--c-primary);}
.faq-wrap .accordion-title::before{
  content:"+";order:2;float:none;position:static;margin:0;
  font-size:20px;font-weight:500;color:var(--c-accent);line-height:1;
}
.faq-wrap .accordion-title[aria-expanded="true"]::before{content:"−";}
.faq-wrap .accordion-content{padding:0 22px 22px;border:0;background:transparent;color:var(--c-ink-2);font-size:14.5px;line-height:1.85;}
.faq-wrap .accordion-content p + p{margin-top:10px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-primary-050);border:1px solid var(--c-line);border-radius:16px;
  padding:40px;display:flex;flex-wrap:wrap;gap:36px;align-items:flex-start;
}
.cta-copy{flex:1 1 320px;}
.cta-copy h2{font-size:28px;}
.cta-copy p{margin-top:12px;font-size:15px;color:var(--c-ink-2);}
.cta-points{margin-top:20px;}
.cta-points li{position:relative;padding-left:20px;font-size:14.5px;color:var(--c-ink-2);line-height:2;}
.cta-points li::before{content:"";position:absolute;left:0;top:13px;width:7px;height:7px;border-radius:2px;background:var(--c-accent);transform:rotate(45deg);}
.cta-form{flex:1 1 380px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;padding:26px;box-shadow:var(--sh-1);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink-2);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;height:48px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:0 14px;background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#9AA7BF;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(26,46,110,.10);}
.form-note{margin-top:12px;font-size:13px;color:var(--c-ink-2);}
@media screen and (max-width:640px){
  .cta-band{padding:26px 20px;gap:24px;}
  .cta-form{flex:1 1 100%;padding:20px;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-surface);margin-top:0;}
.site-footer::before{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,var(--c-primary),transparent);opacity:.45;}
.footer-grid{display:flex;flex-wrap:wrap;gap:36px;padding:56px 0 34px;}
.f-col{flex:1 1 200px;}
.f-col.brand-col{flex:1 1 260px;}
.f-col h4{font-size:14px;font-weight:600;color:var(--c-primary);margin-bottom:16px;letter-spacing:.5px;}
.f-col p{font-size:14px;line-height:1.9;color:var(--c-ink-2);}
.f-col li{font-size:14px;line-height:2.2;}
.f-col li a{color:var(--c-ink-2);}
.f-col li a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{border-top:1px solid var(--c-line);padding:18px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--c-ink-2);}
@media screen and (max-width:640px){
  .grid-container{padding:0 20px;}
  .section{padding:56px 0;}
  h1{font-size:30px;}
  h2,.sec-title{font-size:25px;}
  .cta-copy h2{font-size:24px;}
  .footer-grid{padding:40px 0 26px;gap:28px;}
}
@media screen and (min-width:641px) and (max-width:1024px){
  .grid-container{padding:0 32px;}
  .section{padding:64px 0;}
  h1{font-size:34px;}
  h2,.sec-title{font-size:27px;}
}

/* roulang page: article */
:root{
  --c-primary:#1A2E6E;
  --c-primary-600:#14245A;
  --c-primary-050:#EEF2FB;
  --c-accent:#F0772C;
  --c-accent-600:#D9641C;
  --c-teal:#2C8FA8;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E4E9F3;
  --c-ink:#1F2B45;
  --c-ink-2:#5F6E8C;
  --c-ok:#2E9A72;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(26,46,110,.05),0 12px 28px rgba(26,46,110,.07);
  --sh-2:0 4px 10px rgba(26,46,110,.08),0 18px 36px rgba(26,46,110,.10);
  --nav-w:236px;
  --font-cn:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",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:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--c-primary);line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
::selection{background:var(--c-primary-050);color:var(--c-primary-600)}

/* ============ 布局骨架 ============ */
.page-wrap{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.grid-container{max-width:1200px;padding-left:48px;padding-right:48px;margin-left:auto;margin-right:auto;width:100%}
main{flex:1 0 auto}

/* ============ 左侧导航 ============ */
.site-nav{
  position:fixed;top:0;left:0;width:var(--nav-w);height:100vh;
  background:var(--c-surface);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;padding:0 14px 18px;z-index:60;overflow-y:auto;
}
.nav-brand{display:flex;align-items:center;justify-content:space-between;height:72px;flex:0 0 72px;padding:0 4px;gap:10px}
.brand-link{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{width:32px;height:32px;flex:0 0 32px}
.brand-text{font-size:15px;font-weight:700;color:var(--c-primary);letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-link:hover .brand-text{color:var(--c-primary-600)}
.nav-toggle{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:10px}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-primary);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle:hover{background:var(--c-primary-050)}
.nav-body{display:flex;flex-direction:column;gap:16px;flex:1 1 auto;padding-top:6px}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-item{
  display:block;height:44px;line-height:44px;padding:0 14px 0 13px;border-radius:8px;
  font-size:14.5px;font-weight:500;color:var(--c-ink);border-left:3px solid transparent;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.nav-item:hover{background:rgba(238,242,251,.65);color:var(--c-primary)}
.nav-item.is-active{background:var(--c-primary-050);color:var(--c-primary);border-left-color:var(--c-primary);font-weight:600}
.nav-group-title{font-size:12px;font-weight:600;letter-spacing:1.4px;color:var(--c-ink-2);padding:0 16px;text-transform:uppercase}
.nav-cta{margin-top:auto;padding:18px 4px 0}
.nav-cta .btn{width:100%}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:background-color .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary:hover{background:var(--c-accent-600);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-050);color:var(--c-primary-600);border-color:var(--c-primary-600)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}
.btn-md{height:42px;padding:0 18px;font-size:14.5px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap}
.badge-cat{background:rgba(44,143,168,.12);color:#1E6B80}
.badge-time{background:var(--c-primary-050);color:var(--c-primary)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.link-arrow:hover{color:var(--c-accent)}

/* ============ 板块标题 ============ */
.sec-head{margin-bottom:30px}
.sec-head h2{position:relative;padding-left:20px;font-size:31px;line-height:1.35}
.sec-head h2::before{content:"";position:absolute;left:0;top:14px;width:8px;height:8px;background:var(--c-accent);border-radius:2px;transform:rotate(45deg)}
.sec-head p{margin-top:10px;font-size:15px;color:var(--c-ink-2)}

/* ============ 面包屑 ============ */
.article-shell{padding:30px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);margin-bottom:24px}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:#C3CCDD}
.breadcrumb .cur{color:var(--c-ink-2);max-width:min(560px,60%);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-head{padding-bottom:24px;border-bottom:1px solid var(--c-line)}
.article-head h1{font-size:38px;line-height:1.3;letter-spacing:-.2px;margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--c-ink-2);line-height:1.6}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3CCDD}

/* ============ 文章主体网格 ============ */
.article-grid{margin-top:32px}
.article-main{min-width:0}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--c-ink)}
.article-body p{margin:0 0 18px}
.article-body h2{font-size:28px;line-height:1.4;margin:40px 0 14px;padding-left:16px;position:relative}
.article-body h2::before{content:"";position:absolute;left:0;top:10px;width:6px;height:20px;border-radius:3px;background:var(--c-accent)}
.article-body h3{font-size:22px;line-height:1.45;margin:28px 0 12px;color:var(--c-primary-600)}
.article-body h4{font-size:18px;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body ul li{list-style:disc;margin-bottom:10px}
.article-body ol li{list-style:decimal;margin-bottom:10px}
.article-body li::marker{color:var(--c-primary)}
.article-body strong{color:var(--c-primary);font-weight:600}
.article-body em{font-style:normal;background:var(--c-primary-050);padding:1px 6px;border-radius:6px}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-accent)}
.article-body blockquote{
  margin:24px 0;padding:18px 20px;background:var(--c-primary-050);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--c-ink)
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px auto;box-shadow:var(--sh-1)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--c-ink-2);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-img);overflow:hidden}
.article-body thead th{background:var(--c-primary-050);color:var(--c-primary);font-weight:600}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--c-line)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}
.article-body code{background:var(--c-primary-050);color:var(--c-primary-600);padding:2px 6px;border-radius:6px;font-size:15px}
.article-body .tip-strip{background:var(--c-primary-050);border:1px solid var(--c-line);border-radius:var(--r-img);padding:16px 18px;margin:22px 0}

/* 文章空态 */
.article-empty{
  min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:48px 26px;text-align:center;
}
.article-empty svg{width:44px;height:44px}
.article-empty .empty-title{font-size:20px;font-weight:600;color:var(--c-primary)}
.article-empty .empty-sub{font-size:14.5px;color:var(--c-ink-2);max-width:460px;line-height:1.85}
.article-empty .btn{margin-top:8px}

/* ============ 侧栏 ============ */
.article-side{margin-top:40px}
.side-inner{display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;transition:box-shadow .22s ease,transform .22s ease}
.side-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.side-card h3{font-size:16px;font-weight:600;margin-bottom:14px;padding-left:14px;position:relative}
.side-card h3::before{content:"";position:absolute;left:0;top:6px;width:6px;height:6px;background:var(--c-accent);border-radius:2px;transform:rotate(45deg)}
.side-thumb{margin:-22px -22px 16px;border-radius:var(--r-card) var(--r-card) 0 0;overflow:hidden}
.side-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.side-list li{border-bottom:1px dashed var(--c-line)}
.side-list li:last-child{border-bottom:0}
.side-list a{display:flex;align-items:center;gap:10px;padding:11px 0;font-size:14.5px;color:var(--c-ink)}
.side-list a:hover{color:var(--c-primary)}
.side-list .idx{width:22px;height:22px;flex:0 0 22px;border-radius:999px;background:var(--c-accent);color:#fff;font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:center}
.side-note{font-size:14px;color:var(--c-ink-2);line-height:1.85}
.side-cta{background:var(--c-primary-050);border-color:var(--c-line)}
.side-cta h3{padding-left:0;margin-bottom:10px}
.side-cta h3::before{display:none}
.side-cta p{font-size:14px;color:var(--c-ink-2);margin-bottom:16px}

/* ============ 相关推荐 ============ */
.article-relate{margin-top:52px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:26px 24px}
.article-relate h2{font-size:20px;margin-bottom:8px}
.relate-list li a{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 0;border-bottom:1px solid var(--c-line)}
.relate-list li:last-child a{border-bottom:0}
.relate-title{font-size:15px;font-weight:600;color:var(--c-ink);transition:color .22s ease}
.relate-list li a:hover .relate-title{color:var(--c-primary)}
.relate-time{font-size:13px;color:var(--c-ink-2);white-space:nowrap}
.relate-foot{margin-top:20px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.relate-empty{font-size:14px;color:var(--c-ink-2);padding:14px 0 4px}

/* ============ CTA 带 ============ */
.cta-band{
  margin:76px 0 88px;background:var(--c-primary-050);border:1px solid var(--c-line);border-radius:16px;
  padding:38px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;line-height:1.4;margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--c-ink-2)}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-surface);border-top:1px solid var(--c-line);padding:56px 0 26px;position:relative;flex:0 0 auto}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(240,119,44,0),rgba(240,119,44,.65),rgba(240,119,44,0))}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:34px}
.f-col h4{font-size:14px;font-weight:600;color:var(--c-primary);margin-bottom:14px}
.f-col p{font-size:14px;color:var(--c-ink-2);line-height:1.9}
.f-col ul li{font-size:14px;line-height:2.2;color:var(--c-ink-2)}
.f-col a{color:var(--c-ink-2)}
.f-col a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{margin-top:38px;padding-top:18px;border-top:1px solid var(--c-line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:var(--c-ink-2)}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .page-wrap{margin-left:0;padding-top:64px}
  .site-nav{
    position:fixed;top:0;left:0;right:0;width:100%;height:64px;flex-direction:row;align-items:center;
    padding:0 16px;border-right:0;border-bottom:1px solid var(--c-line);
    box-shadow:0 2px 12px rgba(26,46,110,.07);overflow:visible;
  }
  .nav-brand{height:64px;flex:0 0 auto;width:100%;padding:0}
  .nav-toggle{display:flex}
  .nav-body{
    display:none;position:fixed;top:64px;left:0;right:0;bottom:0;background:var(--c-surface);
    padding:14px 18px 30px;overflow-y:auto;flex-direction:column;gap:16px;z-index:55;
  }
  .site-nav.nav-open .nav-body{display:flex}
  .nav-item{height:48px;line-height:48px;font-size:15px}
  .nav-cta{margin-top:14px;padding:0}
  .grid-container{padding-left:32px;padding-right:32px}
  .article-head h1{font-size:32px}
  .article-body{max-width:100%;font-size:16.5px}
  .article-side{margin-top:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:30px 28px;margin:60px 0 70px}
}
@media screen and (max-width:640px){
  body{font-size:15.5px}
  .grid-container{padding-left:20px;padding-right:20px}
  .article-shell{padding-top:20px}
  .breadcrumb{margin-bottom:18px}
  .breadcrumb .cur{max-width:100%;white-space:normal}
  .article-head h1{font-size:26px;line-height:1.35}
  .article-meta{font-size:13px;gap:9px}
  .article-body{font-size:16px;line-height:1.88}
  .article-body h2{font-size:23px;margin:32px 0 12px}
  .article-body h3{font-size:19px;margin:24px 0 10px}
  .article-relate{padding:22px 18px;margin-top:40px}
  .relate-list li a{flex-direction:column;align-items:flex-start;gap:6px}
  .cta-band{padding:26px 20px;border-radius:14px;margin:52px 0 60px}
  .cta-band h2{font-size:22px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:6px}
  .side-card{padding:18px}
  .side-thumb{margin:-18px -18px 14px}
}
@media screen and (max-width:400px){
  .brand-text{font-size:13.5px}
  .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --c-primary:#1A2E6E;
  --c-primary-600:#14245A;
  --c-primary-050:#EEF2FB;
  --c-accent:#F0772C;
  --c-accent-600:#D9661F;
  --c-teal:#2C8FA8;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E4E9F3;
  --c-ink:#1F2B45;
  --c-ink-2:#5F6E8C;
  --c-ok:#2E9A72;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(26,46,110,.05), 0 12px 28px rgba(26,46,110,.07);
  --sh-2:0 4px 10px rgba(26,46,110,.08), 0 18px 36px rgba(26,46,110,.10);
  --nav-w:236px;
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto 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:1.85;color:var(--c-ink);
  background:var(--c-bg);font-weight:400;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-primary);font-weight:700;}
h1{font-size:42px;line-height:1.28;}
h2{font-size:31px;line-height:1.35;}
h3{font-size:21px;line-height:1.45;font-weight:600;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
strong{color:var(--c-primary);font-weight:600;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

/* 容器 */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 48px;}
.grid-container{max-width:1200px;padding-left:48px;padding-right:48px;}
.grid-x{margin-left:-14px;margin-right:-14px;}
.grid-x>.cell{padding-left:14px;padding-right:14px;}

/* 左侧竖向导航 */
.site-nav{
  position:fixed;left:0;top:0;width:var(--nav-w);height:100vh;background:var(--c-surface);
  border-right:1px solid var(--c-line);display:flex;flex-direction:column;z-index:70;
}
.nav-brand{
  height:72px;flex:0 0 72px;display:flex;align-items:center;justify-content:space-between;
  padding:0 18px;border-bottom:1px solid var(--c-line);
}
.brand-link{display:flex;align-items:center;gap:10px;}
.brand-mark{width:32px;height:32px;flex:0 0 32px;}
.brand-text{font-size:15px;font-weight:700;color:var(--c-primary);letter-spacing:.01em;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:10px;
  padding:0;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px;transition:transform .22s ease,opacity .22s ease;}
.nav-body{flex:1 1 auto;display:flex;flex-direction:column;padding:18px 14px 0;overflow-y:auto;}
.nav-list{padding:0;margin:0 0 4px;}
.nav-item{
  position:relative;display:flex;align-items:center;height:44px;padding:0 12px 0 16px;border-radius:8px;
  font-size:14.5px;font-weight:500;color:var(--c-ink);transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:rgba(238,242,251,.65);color:var(--c-primary);}
.nav-item.is-active{background:var(--c-primary-050);color:var(--c-primary);font-weight:600;}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:2px;background:var(--c-primary);
}
.nav-group-title{padding:16px 16px 8px;font-size:12px;letter-spacing:.08em;color:var(--c-ink-2);}
.nav-cta{margin-top:auto;padding:16px 14px 22px;}
.nav-cta .btn{width:100%;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1.5px solid transparent;cursor:pointer;transition:all .22s ease;line-height:1;text-align:center;
}
.btn-primary{background:var(--c-accent);color:#fff;}
.btn-primary:hover{background:var(--c-accent-600);color:#fff;box-shadow:0 8px 20px rgba(240,119,44,.28);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-050);color:var(--c-primary);}
.btn-ghost:active{transform:translateY(1px);}
.btn-md{height:42px;padding:0 18px;font-size:14.5px;}
.btn-block{width:100%;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary);
  border-bottom:1px solid rgba(26,46,110,.35);padding-bottom:2px;border-radius:0;
}
.btn-link:hover{color:var(--c-accent);border-bottom-color:rgba(240,119,44,.5);}
.btn-link i{font-size:12px;transition:transform .2s ease;}
.btn-link:hover i{transform:translateX(3px);}

/* 主内容区 */
.page-main{margin-left:var(--nav-w);padding-bottom:0;}

/* 紧凑页头 */
.page-hero{
  position:relative;min-height:258px;display:flex;align-items:center;overflow:hidden;
  background:var(--c-primary) url('/assets/images/backpic/back-2.webp') center 32%/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg, rgba(20,36,90,.94) 0%, rgba(26,46,110,.86) 52%, rgba(26,46,110,.62) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:44px;padding-bottom:44px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px;
}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:rgba(255,255,255,.66);}
.page-hero h1{color:#fff;max-width:760px;font-size:38px;}
.page-hero .hero-sub{
  margin-top:14px;max-width:640px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);
}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;}
.page-hero .btn-ghost{border-color:rgba(255,255,255,.7);color:#fff;}
.page-hero .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}

/* 板块 */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.band{background:var(--c-primary-050);}
.band-white{background:var(--c-surface);}
.sec-head{max-width:760px;margin-bottom:34px;}
.sec-head h2{position:relative;padding-left:20px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:8px;height:8px;background:var(--c-accent);border-radius:2px;
}
.sec-head p{margin-top:12px;color:var(--c-ink-2);font-size:16px;line-height:1.85;}

/* 导语 + 速览指标 */
.lead-box{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:16px;
  padding:34px 38px;box-shadow:var(--sh-1);
}
.lead-box p{font-size:17px;line-height:1.9;color:var(--c-ink);}
.fact-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px;
  border-top:1px solid var(--c-line);padding-top:24px;
}
.fact{display:flex;align-items:baseline;gap:10px;}
.fact .fact-num{font-size:32px;font-weight:700;color:var(--c-primary);line-height:1.1;font-variant-numeric:tabular-nums;}
.fact .fact-unit{font-size:13px;color:var(--c-ink-2);}
.fact .fact-label{margin-left:auto;font-size:13.5px;color:var(--c-ink-2);}

/* 卡片 */
.card{
  height:100%;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6DEEC;}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-050);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{font-size:19px;margin-bottom:10px;}
.card-body p{
  font-size:14.5px;line-height:1.8;color:var(--c-ink-2);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;}
.badge{
  display:inline-block;font-size:12px;line-height:1;padding:5px 10px;border-radius:999px;
  background:rgba(44,143,168,.12);color:#1D6E84;font-weight:600;
}
.badge-soft{background:var(--c-primary-050);color:var(--c-primary);}
.card-tag{margin-bottom:12px;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:22px;position:relative;margin-top:8px;}
.step{position:relative;padding-top:8px;}
.step .step-no{
  width:42px;height:42px;border-radius:50%;border:1.5px solid var(--c-accent);color:var(--c-accent);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;background:#fff;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:16.5px;margin:16px 0 8px;}
.step p{font-size:14px;line-height:1.8;color:var(--c-ink-2);}
.step::after{
  content:"";position:absolute;left:56px;right:-16px;top:29px;border-top:1.5px dashed #C9D4E8;
}
.step:last-child::after{display:none;}

/* 对照表 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:16px;overflow:hidden;box-shadow:var(--sh-1);}
.compare-col{padding:8px 0;}
.compare-col+.compare-col{border-left:1px solid var(--c-line);}
.compare-head{
  padding:18px 26px;font-size:15px;font-weight:600;border-bottom:1px solid var(--c-line);
  display:flex;align-items:center;gap:10px;
}
.compare-head i{color:var(--c-accent);font-size:14px;}
.compare-col.right .compare-head i{color:var(--c-ok);}
.compare-item{padding:16px 26px;border-bottom:1px solid var(--c-line);font-size:14.5px;line-height:1.8;color:var(--c-ink-2);}
.compare-item:last-child{border-bottom:0;}
.compare-item b{display:block;color:var(--c-ink);font-weight:600;margin-bottom:4px;}

/* FAQ */
.faq-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;overflow:hidden;box-shadow:var(--sh-1);}
.faq-item+.faq-item{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 24px;background:transparent;border:0;text-align:left;font-size:16px;font-weight:600;
  color:var(--c-ink);cursor:pointer;transition:background .2s ease,color .2s ease;
}
.faq-q:hover{background:var(--c-primary-050);color:var(--c-primary);}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;}
.faq-icon::before{left:2px;right:2px;top:9px;height:2px;}
.faq-icon::after{top:2px;bottom:2px;left:9px;width:2px;transition:transform .2s ease,opacity .2s ease;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{display:none;padding:0 24px 22px;font-size:14.5px;line-height:1.85;color:var(--c-ink-2);}
.faq-item.is-open .faq-a{display:block;}

/* CTA 带 */
.cta-band{
  background:var(--c-primary-050);border:1px solid var(--c-line);border-radius:16px;
  padding:40px 44px;display:flex;align-items:center;gap:36px;justify-content:space-between;
}
.cta-band h2{font-size:28px;}
.cta-band p{margin-top:12px;color:var(--c-ink-2);font-size:15.5px;max-width:620px;line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

/* 页脚 */
.site-footer{
  background:var(--c-surface);border-top:1px solid var(--c-line);margin-top:0;position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,rgba(26,46,110,0) 0%,rgba(26,46,110,.45) 40%,rgba(240,119,44,.55) 70%,rgba(26,46,110,0) 100%);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px;
}
.f-col h4{font-size:14px;font-weight:600;color:var(--c-primary);margin-bottom:16px;}
.f-col p{font-size:14px;line-height:1.9;color:var(--c-ink-2);max-width:330px;}
.f-col ul li{font-size:14px;line-height:2.2;color:var(--c-ink-2);}
.f-col ul li a{color:var(--c-ink-2);}
.f-col ul li a:hover{color:var(--c-primary);text-decoration:underline;}
.brand-col .brand-line{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.brand-col .brand-line svg{width:28px;height:28px;flex:0 0 28px;}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:var(--c-ink-2);
}

/* 响应式 */
@media screen and (max-width:1024px){
  h1{font-size:32px;}
  h2{font-size:26px;}
  .container{padding:0 32px;}
  .grid-container{padding-left:32px;padding-right:32px;}
  .site-nav{
    position:sticky;top:0;width:100%;height:64px;flex-direction:row;align-items:center;
    padding:0 18px;border-right:0;border-bottom:1px solid var(--c-line);
    box-shadow:0 4px 14px rgba(26,46,110,.06);
  }
  .nav-brand{height:auto;flex:1 1 auto;border-bottom:0;padding:0;}
  .nav-toggle{display:flex;}
  .nav-body{
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:var(--c-surface);
    transform:translateX(102%);transition:transform .28s ease;padding:80px 18px 24px;
    box-shadow:-14px 0 40px rgba(26,46,110,.14);overflow-y:auto;z-index:80;
  }
  .nav-body.is-open{transform:translateX(0);}
  .nav-item{height:48px;border-bottom:1px solid var(--c-line);border-radius:0;}
  .nav-item.is-active::before{top:14px;bottom:14px;}
  .page-main{margin-left:0;}
  .page-hero{min-height:230px;}
  .page-hero h1{font-size:30px;}
  .section{padding:56px 0;}
  .steps{grid-template-columns:repeat(2,1fr);gap:26px;}
  .step::after{display:none;}
  .compare{grid-template-columns:1fr;}
  .compare-col+.compare-col{border-left:0;border-top:1px solid var(--c-line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
}
@media screen and (max-width:640px){
  body{font-size:15.5px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  .container{padding:0 20px;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .grid-x{margin-left:-8px;margin-right:-8px;}
  .grid-x>.cell{padding-left:8px;padding-right:8px;}
  .page-hero h1{font-size:25px;line-height:1.35;}
  .page-hero .hero-sub{font-size:14.5px;}
  .hero-actions .btn{width:100%;}
  .section{padding:48px 0;}
  .lead-box{padding:24px 20px;}
  .fact-row{grid-template-columns:1fr;gap:14px;}
  .fact .fact-label{margin-left:0;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:44px 0 30px;}
  .footer-bottom{flex-direction:column;}
  .compare-head,.compare-item{padding-left:18px;padding-right:18px;}
  .faq-q{padding-left:18px;padding-right:18px;font-size:15.5px;}
  .faq-a{padding-left:18px;padding-right:18px;}
  .cta-band{padding:26px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1A2E6E;
  --c-primary-600:#14245A;
  --c-primary-050:#EEF2FB;
  --c-accent:#F0772C;
  --c-teal:#2C8FA8;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E4E9F3;
  --c-ink:#1F2B45;
  --c-ink-2:#5F6E8C;
  --c-ok:#2E9A72;
  --c-dark:#0F1B40;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(26,46,110,.05),0 12px 28px rgba(26,46,110,.07);
  --shadow-2:0 4px 10px rgba(26,46,110,.08),0 18px 36px rgba(26,46,110,.10);
  --maxw:1200px;
  --gap-side:48px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none;margin:0;padding:0}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit;font-size:inherit}
table{border-collapse:collapse;width:100%}
.num,.stat-num,.row-index,.row-meta{font-variant-numeric:tabular-nums}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gap-side)}

/* ============ 左侧竖向导航 ============ */
.site-nav{
  position:fixed;top:0;left:0;bottom:0;width:236px;z-index:90;
  background:var(--c-surface);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
}
.nav-brand{display:flex;align-items:center;justify-content:space-between}
.brand-link{display:flex;align-items:center;gap:10px;height:72px;padding:0 18px;flex:1}
.brand-mark{width:32px;height:32px;flex:0 0 32px}
.brand-text{font-size:15px;font-weight:700;color:var(--c-primary);letter-spacing:.2px;line-height:1.2}
.nav-toggle{
  display:none;width:44px;height:44px;margin-right:10px;border:none;background:transparent;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;border-radius:8px;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-primary);transition:transform .22s ease,opacity .22s ease}
.site-nav.is-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-nav.is-open .nav-toggle span:nth-child(2){opacity:0}
.site-nav.is-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-body{flex:1;overflow-y:auto;padding:16px 12px 22px;display:flex;flex-direction:column}
.nav-list li+li{margin-top:4px}
.nav-item{
  position:relative;display:block;height:44px;line-height:44px;padding:0 14px 0 18px;
  border-radius:8px;font-size:14.5px;font-weight:500;color:var(--c-ink);
  transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:rgba(238,242,251,.65);color:var(--c-primary)}
.nav-item.is-active{background:var(--c-primary-050);color:var(--c-primary);font-weight:600}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:0 3px 3px 0;background:var(--c-primary);
}
.nav-group-title{font-size:12px;color:var(--c-ink-2);letter-spacing:.08em;margin:22px 16px 8px;font-weight:500}
.nav-cta{margin-top:auto;padding:18px 16px 0;border-top:1px solid var(--c-line)}
.page-shell{margin-left:236px;min-height:100vh;display:flex;flex-direction:column}
.page-shell main{flex:1 0 auto}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;border-radius:var(--r-btn);font-weight:600;font-size:15px;cursor:pointer;
  text-align:center;white-space:nowrap;
  transition:background .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-lg{height:48px;padding:0 24px}
.btn-md{height:42px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(240,119,44,.24)}
.btn-primary:hover{background:#DC661C;color:#fff;box-shadow:0 10px 22px rgba(240,119,44,.30);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(240,119,44,.24)}
.btn-ghost{background:transparent;border:1.5px solid var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-050);color:var(--c-primary)}
.btn-block{width:100%}
.link-more{font-size:14px;font-weight:600;color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.link-more:hover{color:var(--c-accent)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;line-height:1;white-space:nowrap}
.badge-teal{background:rgba(44,143,168,.12);color:#1F6E82}
.badge-primary{background:var(--c-primary-050);color:var(--c-primary)}

/* ============ 页头 ============ */
.page-hero{position:relative;overflow:hidden;background:var(--c-dark);display:flex;align-items:center;min-height:238px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:80% 20%;
}
.hero-stars{
  position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.06;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1.3px);
  background-size:26px 26px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:2;
  background:linear-gradient(100deg,rgba(13,22,54,.94) 0%,rgba(13,22,54,.82) 46%,rgba(13,22,54,.42) 100%);
}
.page-hero .wrap{position:relative;z-index:3;padding-top:38px;padding-bottom:38px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.74);margin-bottom:14px}
.crumb a{color:rgba(255,255,255,.86)}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumb .sep{opacity:.5}
.crumb .cur{color:rgba(255,255,255,.62)}
.page-hero h1{
  font-size:36px;line-height:1.3;font-weight:700;color:#fff;letter-spacing:.4px;max-width:760px;
}
.page-hero .hero-sub{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.82);max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.hero-tags span{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;color:#E7EDFB;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);
}

/* ============ 板块 ============ */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-white{background:var(--c-surface)}
.section-head{margin-bottom:34px}
.section-head h2{position:relative;font-size:30px;line-height:1.35;font-weight:700;padding-left:18px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:8px;height:8px;border-radius:2px;background:var(--c-accent);
}
.section-head .lead{margin-top:12px;max-width:760px;color:var(--c-ink-2);font-size:15.5px}
.prose{max-width:840px}
.prose p{font-size:17px;line-height:1.9;color:var(--c-ink)}
.prose p+p{margin-top:18px}
.prose strong{color:var(--c-primary);font-weight:600}

/* ============ 准备清单条 ============ */
.check-band{
  margin-top:32px;background:var(--c-primary-050);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 28px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.check-item{display:flex;gap:14px}
.check-icon{
  flex:0 0 40px;width:40px;height:40px;border-radius:10px;background:#fff;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:16px;
}
.check-item h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:4px}
.check-item p{font-size:14px;color:var(--c-ink-2);line-height:1.8}

/* ============ 长条列表 ============ */
.row-list{display:flex;flex-direction:column;gap:16px}
.row-item{
  display:grid;grid-template-columns:120px 1fr 52px;gap:22px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:16px 20px 16px 16px;
  transition:box-shadow .24s ease,transform .24s ease,border-color .24s ease;
}
.row-item:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:#D5DEF0}
.row-thumb{
  width:120px;height:86px;border-radius:var(--r-img);overflow:hidden;background:var(--c-primary-050);
}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease}
.row-item:hover .row-thumb img{transform:scale(1.04)}
.row-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.row-title{font-size:19px;line-height:1.45;font-weight:600;color:var(--c-ink)}
.row-desc{margin-top:8px;font-size:15px;line-height:1.8;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-meta{display:flex;align-items:center;gap:12px;margin-top:10px;font-size:13px;color:var(--c-ink-2)}
.row-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line)}
.row-index{
  font-size:22px;font-weight:700;text-align:right;color:rgba(26,46,110,.18);letter-spacing:.04em;
  transition:color .24s ease;
}
.row-item:hover .row-index{color:var(--c-accent)}

/* ============ 深色流程带 ============ */
.flow-band{background:var(--c-dark);color:#fff;position:relative;overflow:hidden}
.flow-band::before{
  content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1.3px);background-size:28px 28px;
}
.flow-band .wrap{position:relative;z-index:1}
.flow-band .section-head h2{color:#fff}
.flow-band .section-head .lead{color:rgba(255,255,255,.72)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.flow-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);
  padding:22px 20px 24px;transition:background .24s ease,transform .24s ease,border-color .24s ease;
}
.flow-card:hover{background:rgba(255,255,255,.10);transform:translateY(-3px);border-color:rgba(240,119,44,.5)}
.flow-no{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;
  background:rgba(240,119,44,.16);border:1px solid rgba(240,119,44,.55);color:#FFC79A;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.flow-card h3{margin-top:16px;font-size:17px;font-weight:600;color:#fff}
.flow-card p{margin-top:8px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72)}

/* ============ FAQ ============ */
.faq-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item+.faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;
  min-height:56px;padding:14px 22px;background:transparent;border:none;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
  transition:background .2s ease,color .2s ease;
}
.faq-q:hover{background:rgba(238,242,251,.6);color:var(--c-primary)}
.faq-item.is-open .faq-q{color:var(--c-primary)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .24s ease,opacity .24s ease;
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--c-ink-2);max-width:900px}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--c-primary-050);border:1px solid var(--c-line);border-radius:16px;
  padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow-1);
}
.cta-band h2{font-size:26px;line-height:1.4;font-weight:700}
.cta-band p{margin-top:8px;font-size:15px;color:var(--c-ink-2)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--c-dark);color:#C3CCE2;padding:56px 0 24px;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(240,119,44,0),rgba(240,119,44,.85),rgba(44,143,168,.65),rgba(240,119,44,0));
}
.site-footer .grid-container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gap-side)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px}
.f-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.f-col p{font-size:14px;line-height:1.9;color:#98A5C4;max-width:320px}
.f-col ul li{font-size:14px;line-height:2.2;color:#A9B5D2}
.f-col ul li a{color:#C3CCE2}
.f-col ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:38px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8D9AB9;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--gap-side:32px}
  .site-nav{
    position:sticky;top:0;left:auto;right:auto;bottom:auto;width:100%;height:64px;
    flex-direction:row;align-items:center;border-right:none;border-bottom:1px solid var(--c-line);
    box-shadow:0 1px 2px rgba(26,46,110,.05);
  }
  .nav-brand{width:100%}
  .brand-link{height:64px;padding:0 18px}
  .brand-mark{width:28px;height:28px;flex:0 0 28px}
  .brand-text{font-size:14.5px}
  .nav-toggle{display:flex}
  .nav-body{
    position:fixed;top:64px;left:0;right:0;bottom:0;background:#fff;padding:12px 16px 28px;
    transform:translateX(-100%);visibility:hidden;transition:transform .28s ease,visibility .28s ease;
    overflow-y:auto;box-shadow:0 18px 36px rgba(26,46,110,.12);
  }
  .site-nav.is-open .nav-body{transform:translateX(0);visibility:visible}
  .nav-item{height:48px;line-height:48px}
  .nav-group-title{margin:20px 14px 8px}
  .page-shell{margin-left:0}
  body.nav-locked{overflow:hidden}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .page-hero h1{font-size:30px}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .check-band{grid-template-columns:1fr;gap:20px;padding:24px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
}
@media (max-width:640px){
  :root{--gap-side:20px}
  body{font-size:15.5px}
  .section{padding:44px 0}
  .section-head h2{font-size:23px}
  .page-hero{min-height:0}
  .page-hero .wrap{padding-top:28px;padding-bottom:30px}
  .page-hero h1{font-size:25px}
  .page-hero .hero-sub{font-size:14.5px}
  .prose p{font-size:16px}
  .row-item{grid-template-columns:88px 1fr;gap:14px;padding:14px}
  .row-thumb{width:88px;height:74px}
  .row-index{display:none}
  .row-title{font-size:16.5px}
  .row-desc{font-size:14px;-webkit-line-clamp:3}
  .flow-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px;gap:18px}
  .cta-band h2{font-size:21px}
  .cta-band .btn{width:100%}
  .faq-q{font-size:15px;padding:14px 16px}
  .faq-a p{padding:0 16px 18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}