/* roulang page: index */
:root{
  --c-primary:#1A5FA8;
  --c-primary-700:#134A85;
  --c-primary-50:#EAF2FB;
  --c-accent:#12A594;
  --c-cta:#FF6B35;
  --c-ink:#0E2233;
  --c-muted:#5C6E82;
  --c-line:#E2E9F1;
  --c-bg:#F4F7FA;
  --c-surface:#FFFFFF;
  --sh-1:0 2px 8px rgba(14,34,51,.05);
  --sh-2:0 8px 28px rgba(14,34,51,.08);
  --sh-3:0 18px 44px rgba(14,34,51,.12);
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --bs-primary:#1A5FA8;
  --bs-primary-rgb:26,95,168;
  --bs-body-color:#0E2233;
  --bs-body-font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
}
*{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,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--c-primary-700);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
button{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.wrap-wide{max-width:1320px;margin:0 auto;padding:0 24px;width:100%;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(26,95,168,.10);
  box-shadow:var(--sh-1);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{
  background:#FFFFFF;
  box-shadow:var(--sh-2);
  border-bottom-color:var(--c-line);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:76px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--c-primary),#2E7BC7);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;letter-spacing:-.5px;flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--c-ink);}
.brand-text span{font-size:12px;color:var(--c-muted);letter-spacing:.4px;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-links a{
  position:relative;display:inline-block;padding:8px 12px;
  font-size:14px;font-weight:500;color:var(--c-ink);border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-50);}
.nav-links a.is-active{color:var(--c-primary);}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:rgba(255,255,255,.6);color:var(--c-ink);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.icon-btn:hover{background:var(--c-primary-50);color:var(--c-primary);border-color:rgba(26,95,168,.25);}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  border:1px solid transparent;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-cta:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-cta:active{transform:translateY(0);}
.burger{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--c-line);background:rgba(255,255,255,.7);
  color:var(--c-ink);cursor:pointer;align-items:center;justify-content:center;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,34,51,.45);opacity:0;visibility:hidden;
  transition:opacity .25s ease;z-index:1050;
}
.drawer-mask.show{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;
  background:#fff;z-index:1060;border-radius:20px 0 0 20px;
  padding:24px 22px;transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.show{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-ink);}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);background:#fff;cursor:pointer;color:var(--c-ink);}
.drawer a.d-link{
  display:block;padding:12px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--c-ink);
  border:1px solid transparent;
}
.drawer a.d-link:hover{background:var(--c-primary-50);color:var(--c-primary);}
.drawer .d-divider{height:1px;background:var(--c-line);margin:10px 0;}
.drawer .btn-cta{justify-content:center;margin-top:8px;}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-white{background:var(--c-surface);}
.section-sub{background:var(--c-primary-50);}
.sec-head{max-width:760px;margin:0 auto 48px;text-align:center;}
.sec-head.left{margin-left:0;text-align:left;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;background:var(--c-primary-50);
  color:var(--c-primary);font-size:13px;font-weight:600;letter-spacing:.4px;
  margin-bottom:14px;
}
.eyebrow.is-accent{background:rgba(18,165,148,.12);color:#0B7C70;}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.5px;color:var(--c-ink);}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.3px;color:var(--c-ink);}
h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--c-ink);}
.sec-head p{margin-top:14px;color:var(--c-muted);font-size:16px;line-height:1.75;}
.lead{color:var(--c-muted);font-size:16px;line-height:1.8;}
.divider-line{height:1px;background:var(--c-line);border:0;margin:0;}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  cursor:pointer;border:1.5px solid transparent;
}
.btn-main{background:var(--c-primary);color:#fff;}
.btn-main:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-700);}
.btn-oncta{background:var(--c-cta);color:#fff;}
.btn-oncta:hover{background:#E85A26;color:#fff;transform:translateY(-1px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.btn-text:hover{gap:10px;color:var(--c-primary-700);}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:132px 0 88px;
  background:#fff;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;right:-160px;top:-120px;width:640px;height:640px;
  border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(18,165,148,.10),rgba(26,95,168,.06) 55%,transparent 70%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:180px;
  background-image:linear-gradient(90deg,rgba(26,95,168,.08) 1px,transparent 1px);
  background-size:44px 44px;opacity:.35;pointer-events:none;
  -webkit-mask-image:linear-gradient(to top,#000,transparent);
  mask-image:linear-gradient(to top,#000,transparent);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{margin:18px 0 18px;}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-muted);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-bar{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:34px;padding-top:24px;border-top:1px solid var(--c-line);}
.trust-bar span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);}
.trust-bar span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.hero-media{position:relative;}
.hero-media img{border-radius:18px;box-shadow:var(--sh-3);width:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-media::before{
  content:"";position:absolute;inset:0;border-radius:18px;
  background:linear-gradient(180deg,rgba(255,255,255,0) 55%,rgba(14,34,51,.10));
  pointer-events:none;
}
.hero-card{
  position:absolute;left:-24px;bottom:-26px;background:#fff;border-radius:var(--r-card);
  box-shadow:var(--sh-3);padding:18px 22px;border:1px solid var(--c-line);
  display:flex;gap:18px;align-items:center;
}
.hero-card .hc-num{font-size:32px;font-weight:700;color:var(--c-primary);line-height:1;}
.hero-card .hc-txt{font-size:13px;color:var(--c-muted);line-height:1.5;}

/* ---------- 痛点卡 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.pain-card{
  background:#fff;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,border-color .22s ease;
}
.pain-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(26,95,168,.18);}
.pain-ico{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(18,165,148,.10);color:var(--c-accent);font-size:19px;margin-bottom:18px;
}
.pain-card h3{font-size:16px;margin-bottom:10px;}
.pain-card p{font-size:14px;line-height:1.75;color:var(--c-muted);}

/* ---------- 解决方案交错 ---------- */
.solution-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0;border-bottom:1px solid var(--c-line);}
.solution-row:last-child{border-bottom:0;padding-bottom:0;}
.solution-row.reverse .sol-text{order:2;}
.solution-row.reverse .sol-media{order:1;}
.sol-num{
  width:56px;height:56px;border-radius:14px;background:var(--c-primary-50);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:700;color:var(--c-accent);margin-bottom:20px;
}
.sol-text h3{font-size:24px;margin-bottom:14px;letter-spacing:-.2px;}
.sol-text p{color:var(--c-muted);font-size:15px;line-height:1.8;margin-bottom:18px;}
.sol-list{display:flex;flex-direction:column;gap:12px;margin-bottom:22px;}
.sol-list li{display:flex;gap:10px;font-size:15px;color:var(--c-ink);line-height:1.7;}
.sol-list li i{color:var(--c-accent);font-size:14px;margin-top:6px;}
.sol-media img{border-radius:var(--r-img);box-shadow:var(--sh-2);width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ---------- 数据条 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:12px;}
.metric{padding:8px 28px;border-right:1px solid rgba(26,95,168,.16);}
.metric:last-child{border-right:0;}
.metric .m-num{font-size:clamp(34px,4vw,48px);font-weight:700;letter-spacing:-1px;color:var(--c-primary);line-height:1.1;font-variant-numeric:tabular-nums;}
.metric .m-lb{margin-top:10px;font-size:14px;color:var(--c-muted);line-height:1.6;}
.metrics-note{margin-top:36px;padding-top:26px;border-top:1px solid rgba(26,95,168,.16);display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center;}
.metrics-note p{font-size:15px;line-height:1.85;color:var(--c-muted);}
.bar-stack{display:flex;flex-direction:column;gap:14px;}
.bar-item{font-size:13px;color:var(--c-muted);}
.bar-track{height:8px;border-radius:999px;background:rgba(26,95,168,.14);margin-top:8px;overflow:hidden;}
.bar-fill{height:100%;border-radius:999px;background:var(--c-accent);}
.bar-fill.primary{background:var(--c-primary);}

/* ---------- 证言 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:18px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.quote-mark{font-size:34px;line-height:1;color:var(--c-accent);font-weight:700;}
.quote-card p{font-size:15px;line-height:1.85;color:var(--c-ink);}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--c-line);}
.avatar{
  width:44px;height:44px;border-radius:50%;background:var(--c-primary-50);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15px;flex-shrink:0;
}
.quote-person strong{display:block;font-size:15px;font-weight:600;color:var(--c-ink);}
.quote-person span{font-size:13px;color:var(--c-muted);}

/* ---------- 最新信息列表 ---------- */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.list-head p{color:var(--c-muted);font-size:15px;margin-top:10px;}
.post-row{
  display:grid;grid-template-columns:200px 1fr 48px;gap:24px;align-items:center;
  padding:22px 18px;border-bottom:1px solid var(--c-line);
  transition:background .2s ease;border-radius:12px;
}
.post-row:first-of-type{border-top:1px solid var(--c-line);}
.post-row:hover{background:var(--c-primary-50);}
.post-thumb{width:200px;height:120px;border-radius:12px;overflow:hidden;background:var(--c-primary-50);}
.post-thumb img{width:100%;height:100%;object-fit:cover;}
.post-meta{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap;}
.badge-soft{display:inline-block;padding:4px 10px;border-radius:999px;background:var(--c-primary-50);color:var(--c-primary);font-size:13px;font-weight:500;}
.badge-accent{display:inline-block;padding:4px 10px;border-radius:999px;background:rgba(18,165,148,.12);color:#0B7C70;font-size:13px;font-weight:500;}
.post-time{font-size:13px;color:var(--c-muted);}
.post-body h3{font-size:17px;line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body h3 a{color:var(--c-ink);}
.post-body h3 a:hover{color:var(--c-primary);}
.post-body p{font-size:14px;color:var(--c-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-arrow{width:48px;height:48px;border-radius:50%;background:#fff;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);}
.post-row:hover .post-arrow{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.empty-state{
  background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px;
}
.empty-state i{font-size:30px;color:var(--c-primary);}
.empty-state p{color:var(--c-muted);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-col{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item.open{border-color:rgba(26,95,168,.35);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;cursor:pointer;
  padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:600;color:var(--c-ink);
}
.faq-q i{color:var(--c-primary);font-size:14px;transition:transform .25s ease;flex-shrink:0;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-muted);}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-primary);color:#fff;border-radius:20px;padding:48px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.07);
}
.cta-band h2{color:#fff;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.82);margin-top:10px;font-size:15px;position:relative;z-index:2;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}
.cta-band .btn-main{background:#fff;color:var(--c-primary);}
.cta-band .btn-main:hover{background:#F0F6FD;color:var(--c-primary-700);}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.65);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.10);color:#fff;}
.footer-brand strong{color:#fff;font-size:17px;display:block;margin-bottom:12px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:300px;}
.footer-brand .f-contact{margin-top:18px;font-size:14px;color:rgba(255,255,255,.72);}
.footer-brand .f-contact i{color:var(--c-accent);margin-right:8px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.site-footer li{margin-bottom:10px;}
.site-footer li a{color:rgba(255,255,255,.66);font-size:14px;}
.site-footer li a:hover{color:var(--c-accent);}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.52);
}
.to-top{display:inline-flex;align-items:center;gap:8px;color:rgba(255,255,255,.72);font-size:13px;background:transparent;border:0;cursor:pointer;}
.to-top:hover{color:var(--c-accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .wrap-wide{max-width:1200px;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-actions .btn-cta{display:none;}
  .burger{display:flex;}
  .hero{padding:112px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-card{left:16px;bottom:-20px;}
  .section{padding:72px 0;}
  .pain-grid{grid-template-columns:repeat(2,1fr);}
  .solution-row{grid-template-columns:1fr;gap:32px;}
  .solution-row.reverse .sol-text{order:1;}
  .solution-row.reverse .sol-media{order:2;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric{padding:20px 16px;border-right:0;border-bottom:1px solid rgba(26,95,168,.16);}
  .metric:nth-child(2n){border-right:0;}
  .metric:nth-last-child(-n+2){border-bottom:0;}
  .metrics-note{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:repeat(2,1fr);}
  .post-row{grid-template-columns:160px 1fr;}
  .post-arrow{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .wrap,.wrap-wide{padding:0 16px;}
  .nav-inner{height:64px;}
  .brand-text span{display:none;}
  .hero{padding:100px 0 56px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;min-height:48px;}
  .hero-card{position:static;margin-top:16px;left:auto;bottom:auto;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .sec-head{margin-bottom:32px;}
  .pain-grid{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-bottom:1px solid rgba(26,95,168,.16) !important;padding:18px 4px;border-right:0;}
  .metric:last-child{border-bottom:0 !important;}
  .quote-grid{grid-template-columns:1fr;display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;padding-bottom:8px;}
  .quote-card{min-width:82%;scroll-snap-align:start;}
  .post-row{grid-template-columns:1fr;gap:14px;padding:20px 12px;}
  .post-thumb{width:100%;height:170px;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn-main,.cta-band .cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:519.98px){
  h1{font-size:28px;}
  .hero-sub{font-size:15px;}
  .quote-card{min-width:90%;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1A5FA8;
  --c-primary-700:#134A85;
  --c-primary-50:#EAF2FB;
  --c-accent:#12A594;
  --c-accent-50:#E6F5F3;
  --c-cta:#FF6B35;
  --c-ink:#0E2233;
  --c-muted:#5C6E82;
  --c-line:#E2E9F1;
  --c-bg:#F4F7FA;
  --c-surface:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(14,34,51,.05);
  --sh-2:0 8px 28px rgba(14,34,51,.08);
  --sh-3:0 18px 44px rgba(14,34,51,.12);
  --bs-primary:#1A5FA8;
  --bs-primary-rgb:26,95,168;
  --bs-body-color:#0E2233;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-link-color:#1A5FA8;
  --bs-link-hover-color:#134A85;
  --bs-border-color:#E2E9F1;
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-700)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1320px}}
.section{padding:88px 0}
.section-sm{padding:64px 0}
.bg-surface{background:var(--c-surface)}
.bg-soft{background:var(--c-bg)}
.bg-primary-soft{background:var(--c-primary-50)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;margin-bottom:12px}
.sec-head .lead{font-size:16px;line-height:1.75;color:var(--c-muted)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--c-accent);text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px;display:inline-block}
.deco-line{width:44px;height:4px;border-radius:2px;background:var(--c-primary);margin-bottom:18px}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(26,95,168,.10);
  box-shadow:var(--sh-1);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{background:#FFFFFF;box-shadow:var(--sh-2);border-bottom-color:var(--c-line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-ink);flex-shrink:0}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:44px;height:44px;flex-shrink:0;border-radius:13px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#fff;font-weight:700;font-size:15px;letter-spacing:.04em;
  display:grid;place-items:center;box-shadow:var(--sh-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:-.01em}
.brand-text span{font-size:11px;color:var(--c-muted);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;font-size:14px;font-weight:500;color:var(--c-ink);
  padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--c-primary-700)}
.nav-links a:hover::after,
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:11px;border:1px solid var(--c-line);
  background:rgba(255,255,255,.7);color:var(--c-primary);font-size:15px;
  display:grid;place-items:center;cursor:pointer;transition:.22s ease;
}
.icon-btn:hover{background:var(--c-primary-50);border-color:rgba(26,95,168,.28);color:var(--c-primary-700)}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-btn);
  background:var(--c-primary-50);color:var(--c-primary);
  font-size:14px;font-weight:600;border:1px solid rgba(26,95,168,.18);
  transition:.22s ease;white-space:nowrap;
}
.btn-cta:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-1px);box-shadow:var(--sh-2)}
.site-header.is-stuck .btn-cta{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.site-header.is-stuck .btn-cta:hover{background:var(--c-primary-700);border-color:var(--c-primary-700)}
.burger{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);font-size:17px;place-items:center;cursor:pointer;
}
.burger:hover{color:var(--c-primary);border-color:rgba(26,95,168,.3)}

/* 移动抽屉 */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(14,34,51,.45);z-index:1100;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;
  background:#fff;z-index:1200;padding:24px 22px 32px;overflow-y:auto;
  border-radius:20px 0 0 20px;box-shadow:var(--sh-3);
  transform:translateX(105%);transition:transform .3s cubic-bezier(.4,0,.2,1);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-head strong{font-size:16px;font-weight:700}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);display:grid;place-items:center;cursor:pointer;
}
.drawer-close:hover{color:var(--c-primary);border-color:rgba(26,95,168,.3)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:12px;font-size:15px;font-weight:500;
  color:var(--c-ink);background:transparent;transition:.2s ease;
}
.drawer-nav a:hover{background:var(--c-primary-50);color:var(--c-primary)}
.drawer-nav a.is-active{background:var(--c-primary-50);color:var(--c-primary);font-weight:600}
.drawer-nav a i{font-size:12px;color:var(--c-muted)}
.drawer .btn-main{width:100%;justify-content:center}

/* ============ 按钮 ============ */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  border:1.5px solid var(--c-primary);cursor:pointer;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease,color .22s ease;
}
.btn-main:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);
  background:transparent;color:var(--c-primary);font-size:15px;font-weight:600;
  border:1.5px solid var(--c-primary);cursor:pointer;transition:.22s ease;
}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-700);border-color:var(--c-primary-700)}
.btn-on-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);
  background:#fff;color:var(--c-primary);font-size:15px;font-weight:600;
  border:1.5px solid #fff;cursor:pointer;transition:.22s ease;
}
.btn-on-dark:hover{background:rgba(255,255,255,.88);color:var(--c-primary-700);transform:translateY(-1px);box-shadow:0 8px 24px rgba(0,0,0,.16)}
.btn-outline-light2{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);
  background:transparent;color:#fff;font-size:15px;font-weight:600;
  border:1.5px solid rgba(255,255,255,.65);cursor:pointer;transition:.22s ease;
}
.btn-outline-light2:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 面包屑 ============ */
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:20px;flex-wrap:wrap}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:#B7C3D0}
.crumbs .current{color:var(--c-primary);font-weight:500}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;
  padding:calc(76px + 52px) 0 76px;
  background:
    radial-gradient(900px 420px at 88% -10%,rgba(18,165,148,.14),transparent 62%),
    linear-gradient(180deg,#FFFFFF 0%,#F2F7FC 100%);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:520px;height:520px;
  border:1px solid rgba(26,95,168,.10);border-radius:50%;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;position:relative;z-index:1}
.page-hero h1{
  font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;
  margin-bottom:18px;max-width:620px;
}
.page-hero .intro{font-size:16px;line-height:1.8;color:var(--c-muted);max-width:600px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;
  background:var(--c-primary-50);color:var(--c-primary);
}
.tag.accent{background:var(--c-accent-50);color:#0C7A6D}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;border-radius:18px;box-shadow:var(--sh-3);object-fit:cover;
  aspect-ratio:16/11;
}
.hero-figure .float-card{
  position:absolute;left:-22px;bottom:-24px;background:#fff;border:1px solid var(--c-line);
  border-radius:14px;padding:14px 18px;box-shadow:var(--sh-2);display:flex;align-items:center;gap:12px;
}
.hero-figure .float-card i{color:var(--c-accent);font-size:18px}
.hero-figure .float-card strong{display:block;font-size:14px;font-weight:600}
.hero-figure .float-card span{font-size:12px;color:var(--c-muted)}

/* ============ 图文交错 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split + .split{margin-top:80px}
.split.reverse .split-media{order:2}
.split.reverse .split-body{order:1}
.split-body h2{font-size:clamp(23px,2.4vw,30px);line-height:1.32;font-weight:700;margin-bottom:16px}
.split-body p{color:var(--c-muted);margin-bottom:18px}
.split-media img{width:100%;border-radius:var(--r-card);box-shadow:var(--sh-2);aspect-ratio:4/3;object-fit:cover}
.split-media{position:relative}
.split-media .num-badge{
  position:absolute;top:-14px;left:-14px;width:52px;height:52px;border-radius:14px;
  background:var(--c-primary-50);color:var(--c-accent);font-weight:700;font-size:18px;
  display:grid;place-items:center;border:1px solid rgba(26,95,168,.14);
}
.check-list{display:flex;flex-direction:column;gap:12px;margin:22px 0 24px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-ink)}
.check-list li i{
  color:#fff;background:var(--c-accent);width:20px;height:20px;border-radius:50%;
  font-size:10px;display:grid;place-items:center;flex-shrink:0;margin-top:5px;
}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-primary)}
.link-more i{transition:transform .22s ease}
.link-more:hover i{transform:translateX(4px)}

/* ============ 核对清单 ============ */
.check-panel{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:34px 34px 30px;
}
.check-panel .panel-head{display:flex;align-items:center;gap:14px;margin-bottom:24px}
.check-panel .panel-head .ic{
  width:46px;height:46px;border-radius:13px;background:var(--c-primary-50);
  color:var(--c-primary);display:grid;place-items:center;font-size:19px;flex-shrink:0;
}
.check-panel .panel-head h2{font-size:22px;font-weight:700}
.check-panel .panel-head p{font-size:14px;color:var(--c-muted)}
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 28px}
.check-grid li{
  display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.7;
  padding:14px 16px;border-radius:12px;background:#F8FAFD;border:1px solid #EDF2F8;
  transition:.22s ease;
}
.check-grid li:hover{background:var(--c-primary-50);border-color:rgba(26,95,168,.16);transform:translateY(-2px)}
.check-grid li i{color:var(--c-accent);font-size:15px;margin-top:4px;flex-shrink:0}

/* ============ 竖版卡片 ============ */
.card-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.card-v{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card-v:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(26,95,168,.2)}
.card-v .thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.card-v .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card-v:hover .thumb img{transform:scale(1.04)}
.card-v .thumb .badge-soft{
  position:absolute;top:12px;left:12px;background:rgba(255,255,255,.92);
  color:var(--c-primary);font-size:12px;font-weight:600;padding:4px 11px;border-radius:var(--r-pill);
}
.card-v .body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.card-v h3{font-size:19px;line-height:1.4;font-weight:600;margin-bottom:10px}
.card-v p{font-size:15px;line-height:1.75;color:var(--c-muted);flex:1;margin-bottom:16px}
.card-v .foot{display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:600;color:var(--c-primary);border-top:1px solid var(--c-line);padding-top:14px}
.card-v .foot i{transition:transform .22s ease}
.card-v:hover .foot i{transform:translateX(4px)}

/* ============ 数据条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:12px 0;
}
.metric{padding:26px 22px;text-align:center;position:relative}
.metric + .metric::before{
  content:"";position:absolute;left:0;top:22%;height:56%;width:1px;background:var(--c-line);
}
.metric .num{
  font-size:clamp(34px,3.4vw,46px);font-weight:700;line-height:1.1;
  color:var(--c-primary);font-variant-numeric:tabular-nums;margin-bottom:8px;
}
.metric .num small{font-size:16px;font-weight:600;margin-left:2px}
.metric .cap{font-size:14px;color:var(--c-muted)}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion-item{
  border:1px solid var(--c-line)!important;border-radius:var(--r-card)!important;
  background:#fff;margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);transition:border-color .22s ease,box-shadow .22s ease;
}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(26,95,168,.35)!important;box-shadow:var(--sh-2)}
.accordion-button{
  font-size:17px;font-weight:600;color:var(--c-ink);background:#fff;
  padding:20px 24px;box-shadow:none!important;border-radius:var(--r-card)!important;
  display:flex;align-items:center;gap:14px;
}
.accordion-button:not(.collapsed){color:var(--c-primary);background:var(--c-primary-50)}
.accordion-button::after{
  margin-left:auto;width:20px;height:20px;background-size:20px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 4v12M4 10h12' stroke='%231A5FA8' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
}
.accordion-button:not(.collapsed)::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M4 10h12' stroke='%23134A85' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
}
.accordion-body{padding:4px 24px 22px;font-size:15px;line-height:1.8;color:var(--c-muted);border-top:1px solid var(--c-line);margin-top:2px;padding-top:18px}

/* ============ CTA 条 ============ */
.cta-band{
  background:linear-gradient(120deg,#1A5FA8 0%,#134A85 62%,#0F5F62 100%);
  border-radius:20px;padding:48px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--sh-3);position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;
  border-radius:50%;border:1px solid rgba(255,255,255,.14);
}
.cta-band::after{
  content:"";position:absolute;right:40px;bottom:-120px;width:260px;height:260px;
  border-radius:50%;border:1px solid rgba(255,255,255,.10);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.3vw,28px);line-height:1.35;font-weight:700;margin-bottom:10px;position:relative;z-index:1}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;position:relative;z-index:1;max-width:640px}
.cta-band .btn-row{position:relative;z-index:1;flex-shrink:0}

/* 跨分类入口 */
.cross-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.cross-link{
  display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sh-1);transition:.22s ease;
}
.cross-link:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(26,95,168,.22);color:var(--c-ink)}
.cross-link .ic{width:44px;height:44px;border-radius:12px;background:var(--c-primary-50);color:var(--c-primary);display:grid;place-items:center;font-size:17px;flex-shrink:0}
.cross-link strong{display:block;font-size:15px;font-weight:600;margin-bottom:2px}
.cross-link span{font-size:13px;color:var(--c-muted)}
.cross-link .arrow{margin-left:auto;color:var(--c-primary);font-size:14px}

/* ============ 页脚 ============ */
.site-footer{background:#0E2233;color:#B9C7D4;padding:66px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px}
.footer-brand strong{display:block;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;color:#9FB0C0;margin-bottom:18px;max-width:360px}
.f-contact{display:flex;align-items:center;gap:9px;font-size:13px;color:#8FA3B5}
.f-contact i{color:#4FD1C5}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.site-footer ul{display:flex;flex-direction:column;gap:11px}
.site-footer ul a{font-size:14px;color:#B9C7D4}
.site-footer ul a:hover{color:#4FD1C5}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.10);margin-top:46px;padding:20px 0 24px;
  font-size:13px;color:#8FA3B5;
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  color:#D6E2EC;font-size:13px;padding:9px 16px;border-radius:var(--r-btn);cursor:pointer;transition:.22s ease;
}
.to-top:hover{background:rgba(18,165,148,.22);border-color:rgba(79,209,197,.5);color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-links{gap:18px}
  .nav-links a{font-size:13.5px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .nav-links{display:none}
  .burger{display:grid}
  .btn-cta{display:none}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .page-hero{padding:calc(64px + 44px) 0 60px}
  .page-hero h1{max-width:none}
  .hero-figure .float-card{left:12px;bottom:-18px}
  .split{grid-template-columns:1fr;gap:30px}
  .split.reverse .split-media{order:1}
  .split.reverse .split-body{order:2}
  .split + .split{margin-top:56px}
  .card-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric:nth-child(3)::before,
  .metric:nth-child(1)::before{display:none}
  .metric:nth-child(3),
  .metric:nth-child(4){border-top:1px solid var(--c-line)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 32px;gap:26px}
  .cross-links{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
}
@media (max-width:767.98px){
  body{font-size:15.5px}
  .section{padding:56px 0}
  .section-sm{padding:48px 0}
  .wrap{padding:0 16px}
  .nav-inner{min-height:64px}
  .brand-mark{width:40px;height:40px;border-radius:11px;font-size:14px}
  .brand-text strong{font-size:14px}
  .brand-text span{display:none}
  .page-hero{padding:calc(64px + 34px) 0 50px}
  .page-hero h1{font-size:clamp(26px,7vw,32px)}
  .hero-figure .float-card{padding:12px 14px}
  .check-panel{padding:24px 20px}
  .check-grid{grid-template-columns:1fr;gap:12px}
  .card-grid-3{grid-template-columns:1fr;gap:20px}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric{padding:20px 12px}
  .metric .num{font-size:30px}
  .metric .cap{font-size:13px}
  .cta-band{padding:30px 22px;border-radius:16px}
  .btn-row{width:100%}
  .btn-main,.btn-ghost,.btn-on-dark,.btn-outline-light2{width:100%;min-width:160px}
  .accordion-button{font-size:15.5px;padding:17px 18px}
  .accordion-body{padding:16px 18px 20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .sec-head{margin-bottom:32px}
  .hero-tags{gap:8px}
  .tag{font-size:12px;padding:4px 10px}
}

/* roulang page: article */
:root{
  --c-primary:#1A5FA8;
  --c-primary-700:#134A85;
  --c-primary-50:#EAF2FB;
  --c-accent:#12A594;
  --c-accent-50:#E6F6F4;
  --c-cta:#FF6B35;
  --c-ink:#0E2233;
  --c-muted:#5C6E82;
  --c-line:#E2E9F1;
  --c-bg:#F4F7FA;
  --c-surface:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --sh-1:0 2px 8px rgba(14,34,51,.05);
  --sh-2:0 8px 28px rgba(14,34,51,.08);
  --sh-3:0 18px 44px rgba(14,34,51,.12);
  --wrap:1200px;
}
*,*::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:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-700);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.2px;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
@media (min-width:1440px){:root{--wrap:1320px;}}
@media (max-width:575.98px){.wrap{padding:0 16px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(26,95,168,.10);
  box-shadow:var(--sh-1);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{background:#fff;box-shadow:var(--sh-2);border-bottom-color:var(--c-line);}
.nav-inner{display:flex;align-items:center;gap:20px;height:76px;}
.brand{display:flex;align-items:center;gap:12px;flex:none;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--c-primary),#2C7BC9);
  color:#fff;font-size:14px;font-weight:700;letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(26,95,168,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:-.3px;color:var(--c-ink);}
.brand-text span{font-size:12px;color:var(--c-muted);}
.nav-links{display:flex;align-items:center;gap:22px;margin:0 auto;}
.nav-links a{
  position:relative;font-size:14px;font-weight:500;
  color:var(--c-ink);opacity:.82;padding:6px 0;white-space:nowrap;
  transition:color .2s ease,opacity .2s ease;
}
.nav-links a:hover{opacity:1;color:var(--c-primary);}
.nav-links a.is-active{color:var(--c-primary);opacity:1;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-50);}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;
  background:var(--c-primary-50);color:var(--c-primary);
  border:1px solid rgba(26,95,168,.16);
  transition:all .22s ease;white-space:nowrap;
}
.btn-cta:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-1px);}
.is-stuck .btn-cta{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.is-stuck .btn-cta:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);}
.burger{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  align-items:center;justify-content:center;cursor:pointer;font-size:17px;
}
.burger:hover{border-color:var(--c-primary);color:var(--c-primary);}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-inner{height:64px;}
  .burger{display:flex;}
  .nav-actions .btn-cta{display:none;}
  .brand-text span{display:none;}
}
/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,34,51,.45);
  opacity:0;visibility:hidden;transition:all .25s ease;z-index:1040;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;
  background:#fff;border-radius:20px 0 0 20px;z-index:1050;
  transform:translateX(100%);transition:transform .28s ease;
  padding:24px 22px;display:flex;flex-direction:column;
  box-shadow:var(--sh-3);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-head strong{font-size:15px;font-weight:700;color:var(--c-ink);}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-muted);cursor:pointer;font-size:16px;
}
.drawer-close:hover{color:var(--c-primary);border-color:var(--c-primary);}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:26px;}
.drawer-links a{
  padding:13px 12px;border-radius:10px;font-size:15px;font-weight:500;color:var(--c-ink);
  border:1px solid transparent;
}
.drawer-links a:hover{background:var(--c-primary-50);color:var(--c-primary);}
.drawer-links a.is-active{background:var(--c-primary-50);color:var(--c-primary);border-color:rgba(26,95,168,.16);}
.drawer-cta{width:100%;justify-content:center;padding:14px 20px;}

/* ============ 页头 ============ */
.page-head{
  position:relative;overflow:hidden;
  padding:136px 0 48px;
  background:linear-gradient(180deg,#F8FBFE 0%,#F1F6FB 100%);
  border-bottom:1px solid var(--c-line);
}
.page-head::after{
  content:"";position:absolute;right:-80px;top:-60px;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(18,165,148,.10),rgba(18,165,148,0) 68%);
  pointer-events:none;
}
.page-head::before{
  content:"";position:absolute;left:-40px;bottom:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(26,95,168,.10),rgba(26,95,168,0) 70%);
  pointer-events:none;
}
.crumbs{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);margin-bottom:20px;line-height:1.5;
}
.crumbs a{color:var(--c-muted);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{color:#B9C6D4;}
.crumbs .current{color:var(--c-primary);font-weight:500;}
.article-h1{
  position:relative;z-index:1;
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.32;font-weight:700;letter-spacing:-.4px;
  max-width:900px;color:var(--c-ink);
}
.article-meta{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:22px;font-size:13.5px;color:var(--c-muted);
}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--c-primary-50);color:var(--c-primary);
  font-size:13px;font-weight:500;line-height:1.6;
}
.meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-item i{color:var(--c-accent);font-size:13px;}
@media (max-width:767.98px){
  .page-head{padding:108px 0 34px;}
  .article-meta{gap:8px 14px;font-size:13px;margin-top:18px;}
}

/* ============ 文章主体 ============ */
.article-section{padding:60px 0 24px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;justify-content:center;}
@media (min-width:1200px){
  .article-layout{grid-template-columns:220px minmax(0,820px);}
  .article-layout:has(.toc-col:not([hidden])){justify-content:center;}
}
.toc-col{display:none;}
@media (min-width:1200px){
  .toc-col:not([hidden]){display:block;}
}
.toc-card{
  position:sticky;top:104px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:14px;padding:18px 16px;box-shadow:var(--sh-1);
}
.toc-title{
  font-size:12.5px;font-weight:600;color:var(--c-muted);
  letter-spacing:.08em;margin-bottom:12px;
}
.toc-list li{margin-bottom:8px;}
.toc-list li:last-child{margin-bottom:0;}
.toc-list a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--c-muted);
  padding-left:12px;border-left:2px solid transparent;
  transition:all .2s ease;
}
.toc-list a:hover{color:var(--c-primary);border-left-color:var(--c-primary);}
.article-main{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:40px;
  min-width:0;
}
@media (max-width:767.98px){
  .article-main{padding:22px 18px;border-radius:14px;}
  .article-section{padding:36px 0 16px;}
}
.article-cover{margin:0 0 28px;}
.article-cover img{
  width:100%;border-radius:var(--r-img);object-fit:cover;
  box-shadow:var(--sh-1);aspect-ratio:16/8;
}
.article-body{font-size:16px;line-height:1.85;color:var(--c-ink);overflow-wrap:break-word;}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.4;
  margin:40px 0 18px;padding-left:16px;scroll-margin-top:104px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:20px;font-weight:600;margin:30px 0 12px;scroll-margin-top:104px;}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;line-height:1.8;}
.article-body li::marker{color:var(--c-primary);}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(26,95,168,.28);}
.article-body a:hover{color:var(--c-primary-700);border-bottom-color:var(--c-primary-700);}
.article-body strong{font-weight:600;}
.article-body blockquote{
  margin:0 0 22px;padding:16px 20px;
  background:var(--c-primary-50);
  border-left:3px solid var(--c-accent);
  border-radius:0 12px 12px 0;
  color:#17364F;font-size:15.5px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);box-shadow:var(--sh-1);margin:6px 0 22px;height:auto;}
.article-body figure{margin:0 0 24px;}
.article-body figcaption{
  font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;line-height:1.6;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:0 0 24px;font-size:15px;
  border:1px solid var(--c-line);border-radius:12px;overflow:hidden;
}
.article-body th{
  background:var(--c-primary-50);color:var(--c-ink);font-weight:600;text-align:left;
}
.article-body th,.article-body td{
  padding:12px 14px;border-bottom:1px solid var(--c-line);vertical-align:top;
}
.article-body tbody tr:nth-child(even){background:#FAFCFE;}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body pre{
  background:#F5F7FA;border:1px solid var(--c-line);border-radius:12px;
  padding:16px;overflow:auto;font-size:14px;line-height:1.7;margin:0 0 24px;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;background:#F1F5F9;color:var(--c-primary-700);
  padding:2px 6px;border-radius:6px;
}
.article-body pre code{background:none;padding:0;color:var(--c-ink);}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:32px 0;}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state i{font-size:42px;color:var(--c-primary);opacity:.85;}
.empty-state p{margin:0;font-size:16px;color:var(--c-muted);}
.empty-state a{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:14.5px;font-weight:600;
  transition:all .22s ease;
}
.empty-state a:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);}

/* 文末模块 */
.article-foot{margin-top:40px;padding-top:28px;border-top:1px solid var(--c-line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;
  background:var(--c-primary-50);color:var(--c-primary);
  font-size:13px;font-weight:500;line-height:1.6;
}
.tag.is-accent{background:var(--c-accent-50);color:#0B7A6D;}
.back-row{display:flex;flex-wrap:wrap;gap:12px;}
.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:all .22s ease;border:1px solid transparent;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-700);}

/* ============ 推荐阅读 ============ */
.related-section{padding:24px 0 80px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:26px;
}
.section-head h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);
  padding-left:16px;line-height:1.35;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;
  border-radius:2px;background:var(--c-primary);
}
.section-head .more{font-size:14px;font-weight:500;color:var(--c-primary);white-space:nowrap;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
@media (max-width:991.98px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:575.98px){.related-grid{grid-template-columns:1fr;}}
.card-item{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.card-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.card-thumb{aspect-ratio:16/9;background:var(--c-primary-50);overflow:hidden;}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card-item:hover .card-thumb img{transform:scale(1.04);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;}
.card-body p{
  margin:0;font-size:14px;line-height:1.72;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-link{
  margin-top:auto;padding-top:6px;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--c-primary);
}
.card-link i{transition:transform .22s ease;}
.card-item:hover .card-link i{transform:translateX(3px);}

/* ============ CTA 条 ============ */
.cta-band{padding:0 0 88px;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:44px;border-radius:20px;
  background:linear-gradient(120deg,var(--c-primary-50) 0%,#F7FBFE 100%);
  border:1px solid #D8E6F5;
}
.cta-inner h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:10px;line-height:1.4;}
.cta-inner p{margin:0;font-size:15px;color:var(--c-muted);line-height:1.75;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex:none;}
@media (max-width:767.98px){
  .cta-inner{flex-direction:column;align-items:stretch;padding:28px 20px;gap:20px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn-primary,.cta-actions .btn-ghost{width:100%;}
  .related-section{padding:12px 0 56px;}
  .cta-band{padding:0 0 56px;}
}

/* ============ 页脚 ============ */
.site-footer{background:#0E2233;color:#C6D3E0;padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;
}
.footer-brand strong{display:block;color:#fff;font-size:18px;margin-bottom:14px;letter-spacing:-.3px;}
.footer-brand p{margin:0 0 16px;font-size:14px;line-height:1.8;color:#9FB0C2;max-width:360px;}
.f-contact{display:flex;align-items:center;gap:8px;font-size:13.5px;color:#9FB0C2;}
.f-contact i{color:var(--c-accent);}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul li:last-child{margin-bottom:0;}
.site-footer ul a{color:#9FB0C2;font-size:14px;}
.site-footer ul a:hover{color:#7FD8CD;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;color:#8A9CAD;line-height:1.7;
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:10px;cursor:pointer;
  background:transparent;border:1px solid rgba(255,255,255,.22);
  color:#C6D3E0;font-size:13px;transition:all .22s ease;white-space:nowrap;
}
.to-top:hover{border-color:var(--c-accent);color:#7FD8CD;}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{padding-top:48px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1A5FA8;
  --c-primary-700:#134A85;
  --c-primary-50:#EAF2FB;
  --c-accent:#12A594;
  --c-accent-700:#0F8578;
  --c-accent-50:#E6F6F4;
  --c-cta:#FF6B35;
  --c-ink:#0E2233;
  --c-muted:#5C6E82;
  --c-line:#E2E9F1;
  --c-bg:#F4F7FA;
  --c-surface:#FFFFFF;
  --sh-1:0 2px 8px rgba(14,34,51,.05);
  --sh-2:0 8px 28px rgba(14,34,51,.08);
  --sh-3:0 18px 44px rgba(14,34,51,.12);
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --bs-primary:#1A5FA8;
  --bs-primary-rgb:26,95,168;
  --bs-body-color:#0E2233;
  --bs-border-color:#E2E9F1;
  --bs-link-color:#1A5FA8;
  --bs-link-hover-color:#134A85;
}
*,*::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:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.75;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-700);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;}
p{margin:0;}
button{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tint{background:var(--c-primary-50);}
.section-white{background:var(--c-surface);}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(26,95,168,.10);
  box-shadow:var(--sh-1);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{background:#FFFFFF;box-shadow:var(--sh-2);border-bottom-color:var(--c-line);}
.nav-inner{display:flex;align-items:center;gap:22px;height:76px;}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,#1A5FA8,#2E7FC9);
  color:#fff;font-size:15px;font-weight:700;letter-spacing:.5px;
  display:grid;place-items:center;box-shadow:0 6px 16px rgba(26,95,168,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:-.3px;}
.brand-text span{font-size:11px;color:var(--c-muted);letter-spacing:.6px;margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:14px;}
.nav-links a{
  position:relative;font-size:14px;font-weight:500;color:#2A445C;
  padding:6px 0;transition:color .2s ease;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-muted);display:grid;place-items:center;
  cursor:pointer;transition:.2s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(26,95,168,.35);background:var(--c-primary-50);}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);font-size:14px;font-weight:600;
  background:var(--c-primary);color:#fff;border:1px solid var(--c-primary);
  transition:.2s ease;white-space:nowrap;
}
.btn-cta:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);color:#fff;transform:translateY(-1px);}
.btn-cta:active{transform:translateY(0);}
.burger{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);cursor:pointer;font-size:17px;
}
.mobile-panel{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;
  background:#fff;z-index:1050;padding:24px 22px 32px;overflow-y:auto;
  border-radius:20px 0 0 20px;box-shadow:var(--sh-3);
  transform:translateX(103%);transition:transform .3s ease;
}
.mobile-panel.is-open{transform:translateX(0);}
.mp-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--c-line);}
.mp-head strong{font-size:15px;color:var(--c-ink);}
.mp-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);background:#fff;color:var(--c-muted);cursor:pointer;}
.mp-links{display:flex;flex-direction:column;margin:16px 0 22px;}
.mp-links a{
  font-size:15px;font-weight:500;color:#2A445C;padding:14px 4px;border-bottom:1px solid var(--c-line);
}
.mp-links a.is-active{color:var(--c-primary);font-weight:600;}
.mp-cta{width:100%;justify-content:center;}
.scrim{
  position:fixed;inset:0;background:rgba(14,34,51,.45);z-index:1040;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.scrim.is-open{opacity:1;visibility:visible;}

/* ---------- buttons ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  background:var(--c-primary);color:#fff;border:1px solid var(--c-primary);
  transition:.22s ease;
}
.btn-main:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,95,168,.24);}
.btn-main:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 25px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary);
  transition:.22s ease;
}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-700);border-color:var(--c-primary-700);}
.btn-cta-orange{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  background:var(--c-cta);color:#fff;border:1px solid var(--c-cta);transition:.22s ease;
}
.btn-cta-orange:hover{background:#EA5A24;border-color:#EA5A24;color:#fff;transform:translateY(-1px);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:152px 0 78px;
  background:linear-gradient(180deg,#E8F1FB 0%,#F4F7FA 100%);
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-90px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(26,95,168,.10);opacity:.9;pointer-events:none;
}
.page-hero::before{
  content:"";position:absolute;left:-80px;bottom:-140px;width:340px;height:340px;border-radius:50%;
  border:1px dashed rgba(18,165,148,.16);pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:22px;}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb em{font-style:normal;color:var(--c-primary);font-weight:500;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:rgba(255,255,255,.9);border:1px solid rgba(26,95,168,.16);
  border-radius:999px;padding:5px 14px;margin-bottom:18px;
}
.page-hero h1{font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.6px;}
.hero-lead{font-size:17px;line-height:1.8;color:var(--c-muted);margin-top:18px;max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;}
.hero-tags li{
  position:relative;font-size:13px;color:#3D5771;font-weight:500;padding-left:16px;
}
.hero-tags li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--c-accent);
}
.hero-visual{
  border-radius:18px;overflow:hidden;box-shadow:var(--sh-3);position:relative;
  background:var(--c-primary-50);border:1px solid rgba(26,95,168,.12);
}
.hero-visual img{width:100%;height:340px;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(234,242,251,.06),rgba(14,34,51,.10));
}

/* ---------- section head ---------- */
.sec-head{max-width:780px;margin-bottom:46px;}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;}
.sec-head p{font-size:16px;color:var(--c-muted);margin-top:14px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.tag-line{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-accent-700);background:var(--c-accent-50);
  border-radius:999px;padding:5px 13px;margin-bottom:14px;
}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-top:6px;}
.timeline::before{
  content:"";position:absolute;left:25px;top:16px;bottom:34px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(26,95,168,.55),rgba(26,95,168,.08));
}
.tl-item{position:relative;padding:0 0 26px 76px;}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  position:absolute;left:0;top:0;width:52px;height:52px;border-radius:16px;
  background:var(--c-primary-50);border:1px solid rgba(26,95,168,.18);
  color:var(--c-accent-700);font-size:16px;font-weight:700;
  display:grid;place-items:center;font-variant-numeric:tabular-nums;
}
.tl-body{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tl-body:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(26,95,168,.25);}
.tl-body h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.tl-body p{font-size:15px;color:var(--c-muted);line-height:1.8;}
.tl-meta{
  display:inline-flex;align-items:center;gap:7px;margin-top:14px;
  font-size:13px;color:var(--c-accent-700);background:var(--c-accent-50);
  border-radius:999px;padding:4px 12px;
}
.side-box{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);position:sticky;top:104px;
}
.side-box h3{font-size:19px;margin-bottom:6px;}
.side-box .sb-sub{font-size:14px;color:var(--c-muted);margin-bottom:16px;}
.side-box ul li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:#3D5771;padding:11px 0;border-bottom:1px dashed var(--c-line);line-height:1.7;
}
.side-box ul li:last-child{border-bottom:none;}
.side-box ul li i{color:var(--c-accent);font-size:14px;margin-top:5px;flex:none;}
.side-note{
  margin-top:18px;background:var(--c-primary-50);border-radius:12px;
  padding:14px 16px;font-size:13px;color:var(--c-primary-700);line-height:1.7;
}

/* ---------- stat band ---------- */
.stat-band{
  background:#fff;border:1px solid var(--c-line);border-radius:20px;
  box-shadow:var(--sh-1);padding:38px 12px;
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-item{text-align:center;padding:0 18px;position:relative;}
.stat-item + .stat-item::before{
  content:"";position:absolute;left:0;top:14%;height:72%;width:1px;background:var(--c-line);
}
.stat-num{font-size:clamp(32px,4vw,48px);font-weight:700;line-height:1.1;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.stat-num em{font-style:normal;font-size:.52em;font-weight:600;margin-left:4px;color:var(--c-muted);}
.stat-label{font-size:14px;color:var(--c-muted);margin-top:10px;}
.band-note{
  max-width:820px;margin:26px auto 0;text-align:center;
  font-size:15px;color:#3D5771;line-height:1.85;
}

/* ---------- risk cards ---------- */
.risk-card{
  height:100%;background:#fff;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,border-color .22s ease;
}
.risk-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(26,95,168,.22);}
.risk-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--c-accent-50);color:var(--c-accent-700);font-size:18px;margin-bottom:16px;
}
.risk-card h3{font-size:17px;font-weight:600;margin-bottom:9px;}
.risk-card p{font-size:14.5px;color:var(--c-muted);line-height:1.8;}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-acc .accordion-item{
  border:1px solid var(--c-line);border-radius:var(--r-card);background:#fff;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(26,95,168,.3);box-shadow:var(--sh-2);}
.faq-acc .accordion-button{
  position:relative;width:100%;background:#fff;border:0;box-shadow:none;
  font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.6;
  padding:20px 62px 20px 22px;text-align:left;transition:background .2s ease,color .2s ease;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary);background:var(--c-primary-50);}
.faq-acc .accordion-button:focus{box-shadow:none;outline:none;}
.faq-acc .accordion-button:focus-visible{outline:2px solid var(--c-primary);outline-offset:-3px;}
.faq-acc .accordion-button::before,
.faq-acc .accordion-button::after{
  content:"";position:absolute;right:24px;top:50%;background:var(--c-primary);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease,background .25s ease;
}
.faq-acc .accordion-button::before{width:14px;height:2px;transform:translateY(-50%);}
.faq-acc .accordion-button::after{width:2px;height:14px;transform:translateY(-50%);}
.faq-acc .accordion-button:not(.collapsed)::after{opacity:0;transform:translateY(-50%) rotate(90deg);}
.faq-acc .accordion-body{padding:4px 22px 22px;font-size:15px;line-height:1.85;color:var(--c-muted);background:var(--c-primary-50);}

/* ---------- cross links ---------- */
.cross-card{
  display:flex;align-items:center;gap:16px;height:100%;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);transition:.22s ease;
}
.cross-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(26,95,168,.25);}
.cross-card .cc-ic{
  width:44px;height:44px;flex:none;border-radius:12px;background:var(--c-primary-50);
  color:var(--c-primary);display:grid;place-items:center;font-size:17px;
}
.cross-card strong{display:block;font-size:16px;font-weight:600;color:var(--c-ink);}
.cross-card span{display:block;font-size:13.5px;color:var(--c-muted);margin-top:4px;}
.cross-card .cc-arrow{margin-left:auto;color:var(--c-primary);font-size:14px;flex:none;}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(120deg,#1A5FA8 0%,#14497F 100%);
  border-radius:22px;padding:46px 44px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--sh-3);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-80px;width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);line-height:1.35;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin-top:10px;max-width:560px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}
.cta-band .btn-main{background:#fff;color:var(--c-primary);border-color:#fff;}
.cta-band .btn-main:hover{background:#EAF2FB;color:var(--c-primary-700);border-color:#EAF2FB;}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* ---------- contact panel ---------- */
.contact-panel{
  background:#fff;border:1px solid var(--c-line);border-radius:20px;
  padding:32px;box-shadow:var(--sh-1);
}
.contact-panel h3{font-size:20px;margin-bottom:8px;}
.contact-panel .cp-sub{font-size:14.5px;color:var(--c-muted);margin-bottom:22px;}
.form-label{font-size:14px;font-weight:500;color:#2A445C;margin-bottom:7px;}
.form-control,.form-select{
  height:48px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  font-size:15px;color:var(--c-ink);background:#fff;box-shadow:none;
}
textarea.form-control{height:auto;min-height:118px;padding-top:12px;line-height:1.7;}
.form-control:focus,.form-select:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(26,95,168,.14);
}
.form-check-input{width:18px;height:18px;margin-top:3px;border-color:#C7D5E3;}
.form-check-input:checked{background-color:var(--c-primary);border-color:var(--c-primary);}
.form-check-label{font-size:13.5px;color:var(--c-muted);line-height:1.7;}
.form-hint{font-size:12.5px;color:var(--c-muted);margin-top:10px;}

/* ---------- footer ---------- */
.site-footer{background:#0E2233;color:#B7C8D9;padding:64px 0 0;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.10);
}
.footer-brand strong{display:block;font-size:17px;color:#fff;font-weight:700;margin-bottom:14px;letter-spacing:-.3px;}
.footer-brand p{font-size:14px;line-height:1.85;color:#9DB2C6;margin-bottom:16px;}
.f-contact{display:flex;align-items:center;gap:9px;font-size:13.5px;color:#8FA6BC;}
.f-contact i{color:var(--c-accent);}
.site-footer h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
.site-footer ul li{margin-bottom:11px;}
.site-footer ul a{font-size:14px;color:#9DB2C6;transition:color .2s ease;}
.site-footer ul a:hover{color:#4FD3C1;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:22px 0 26px;font-size:13px;color:#7E93A8;
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  color:#C9D8E6;font-size:13px;padding:9px 16px;border-radius:999px;cursor:pointer;transition:.2s ease;
}
.to-top:hover{background:rgba(18,165,148,.18);border-color:rgba(18,165,148,.5);color:#fff;}

/* ---------- responsive ---------- */
@media (min-width:1400px){
  .wrap{max-width:1320px;}
}
@media (max-width:1199.98px){
  .section{padding:76px 0;}
  .nav-links{gap:20px;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .burger{display:grid;place-items:center;}
  .nav-actions .btn-cta{display:none;}
  .nav-inner{height:66px;}
  .brand-mark{width:38px;height:38px;font-size:14px;}
  .brand-text strong{font-size:15px;}
  .page-hero{padding:116px 0 60px;}
  .page-hero h1{font-size:clamp(26px,5.6vw,34px);}
  .hero-visual{margin-top:34px;}
  .hero-visual img{height:260px;}
  .side-box{position:static;margin-top:8px;}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:26px 0;padding:30px 8px;}
  .stat-item + .stat-item::before{display:none;}
  .stat-item:nth-child(n+3)::before{display:block;}
  .stat-item:nth-child(odd)::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-band{padding:34px 26px;}
}
@media (max-width:767.98px){
  .wrap{padding:0 16px;}
  .section{padding:56px 0;}
  .page-hero{padding:100px 0 48px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;max-width:none;}
  .timeline::before{left:21px;}
  .tl-item{padding-left:64px;padding-bottom:22px;}
  .tl-num{width:44px;height:44px;border-radius:13px;font-size:14px;}
  .tl-body{padding:18px 18px;}
  .sec-head{margin-bottom:32px;}
  .cta-band{border-radius:18px;padding:28px 20px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn-main,
  .cta-band .cta-actions .btn-ghost{width:100%;}
  .contact-panel{padding:24px 20px;}
  .contact-panel .btn-main{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .risk-card{padding:22px 20px;}
}
@media (max-width:575.98px){
  .stat-band{grid-template-columns:1fr;gap:22px;}
  .stat-item::before{display:none !important;}
  .faq-acc .accordion-button{font-size:15.5px;padding:17px 54px 17px 18px;}
  .faq-acc .accordion-body{padding:2px 18px 20px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1A5FA8;
  --c-primary-700:#134A85;
  --c-primary-50:#EAF2FB;
  --c-accent:#12A594;
  --c-accent-50:#E5F6F3;
  --c-cta:#FF6B35;
  --c-ink:#0E2233;
  --c-muted:#5C6E82;
  --c-line:#E2E9F1;
  --c-bg:#F4F7FA;
  --c-surface:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --sh-1:0 2px 8px rgba(14,34,51,.05);
  --sh-2:0 8px 28px rgba(14,34,51,.08);
  --sh-3:0 18px 44px rgba(14,34,51,.12);
  --bs-primary:#1A5FA8;
  --bs-body-color:#0E2233;
  --bs-body-bg:#F4F7FA;
  --bs-link-color:#1A5FA8;
  --bs-link-hover-color:#134A85;
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  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 .2s ease;}
a:hover{color:var(--c-primary-700);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
@media (min-width:1400px){.wrap{max-width:1320px;}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:76px;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(26,95,168,.10);
  box-shadow:var(--sh-1);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{background:#FFFFFF;box-shadow:var(--sh-2);border-bottom-color:var(--c-line);}
.nav-inner{display:flex;align-items:center;gap:24px;height:76px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#fff;font-weight:700;font-size:15px;letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;white-space:nowrap;}
.brand-text span{font-size:12px;color:var(--c-muted);letter-spacing:.3px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:14px;font-weight:500;color:var(--c-ink);
  padding:8px 12px;border-radius:8px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--c-primary-700);background:rgba(26,95,168,.06);}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-muted);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(26,95,168,.35);background:var(--c-primary-50);}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:42px;padding:0 20px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-50);border:1.5px solid rgba(26,95,168,.25);
  transition:all .22s ease;white-space:nowrap;
}
.site-header.is-stuck .btn-cta{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-cta:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-1px);}
.burger{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);cursor:pointer;align-items:center;justify-content:center;font-size:16px;
}
.mobile-panel{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:1050;
  background:#fff;border-radius:20px 0 0 20px;box-shadow:var(--sh-3);
  padding:24px 20px;transform:translateX(105%);transition:transform .28s ease;
  overflow-y:auto;
}
.mobile-panel.is-open{transform:translateX(0);}
.mobile-panel .mp-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.mobile-panel .mp-head strong{font-size:16px;font-weight:700;}
.mp-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink);cursor:pointer;}
.mobile-panel nav{display:flex;flex-direction:column;gap:4px;}
.mobile-panel nav a{
  padding:13px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.mobile-panel nav a.is-active{color:var(--c-primary);background:var(--c-primary-50);font-weight:600;}
.mobile-panel .mp-cta{display:block;margin-top:20px;text-align:center;}
.nav-mask{
  position:fixed;inset:0;background:rgba(14,34,51,.45);z-index:1045;
  opacity:0;visibility:hidden;transition:opacity .25s ease;
}
.nav-mask.is-open{opacity:1;visibility:visible;}

@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-actions .btn-cta{display:none;}
  .burger{display:inline-flex;}
  .nav-inner{justify-content:space-between;}
}
@media (max-width:575.98px){
  .site-header{height:64px;}
  .nav-inner{height:64px;gap:12px;}
  .brand-text strong{font-size:15px;}
  .brand-text span{display:none;}
  .wrap{padding:0 16px;}
}

/* ---------- 通用按钮 ---------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;transition:all .22s ease;
  border:1.5px solid transparent;
}
.btn-main{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-main:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-700);}
.btn-warm{background:var(--c-cta);color:#fff;box-shadow:var(--sh-1);}
.btn-warm:hover{background:#E85C29;color:#fff;transform:translateY(-1px);}
.btn-line-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-line-light:hover{background:rgba(255,255,255,.14);color:#fff;}
@media (max-width:767.98px){
  .btn-main,.btn-ghost,.btn-warm{width:100%;min-width:160px;}
}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-muted);}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#B9C6D4;}
.crumb .now{color:var(--c-primary);font-weight:500;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;margin-top:76px;
  padding:56px 0 64px;
  background:
    linear-gradient(180deg,rgba(244,247,250,.94),rgba(244,247,250,.98)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:320px;height:320px;
  border:1px solid rgba(26,95,168,.10);border-radius:50%;opacity:.7;pointer-events:none;
}
.page-hero .crumb{margin-bottom:24px;}
.hero-grid{display:grid;grid-template-columns:1fr 380px;gap:48px;align-items:center;position:relative;z-index:2;}
.page-hero h1{
  font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;
  letter-spacing:-.5px;margin-bottom:16px;max-width:760px;
}
.page-hero h1 .hl{color:var(--c-primary);}
.hero-lead{font-size:17px;line-height:1.8;color:var(--c-muted);max-width:640px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;font-weight:500;
  background:var(--c-primary-50);color:var(--c-primary);
}
.tag.accent{background:var(--c-accent-50);color:#0B7A6D;}
.hero-figure{
  border-radius:18px;overflow:hidden;box-shadow:var(--sh-3);
  border:1px solid rgba(255,255,255,.7);background:#fff;
}
.hero-figure img{border-radius:18px;aspect-ratio:4/3;object-fit:cover;width:100%;}
@media (max-width:991.98px){
  .page-hero{margin-top:76px;padding:40px 0 48px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{max-width:520px;}
}
@media (max-width:575.98px){
  .page-hero{margin-top:64px;padding:28px 0 40px;}
  .hero-lead{font-size:15.5px;}
}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section.alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section.sky{background:var(--c-primary-50);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-accent);letter-spacing:.6px;margin-bottom:12px;
}
.sec-kicker::before{content:"";width:20px;height:2px;background:var(--c-accent);border-radius:2px;}
.sec-head.center .sec-kicker::before{display:none;}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;margin-bottom:12px;letter-spacing:-.3px;}
.sec-head p{font-size:16px;color:var(--c-muted);line-height:1.8;max-width:720px;}
.sec-head.center p{margin:0 auto;}
@media (max-width:991.98px){.section{padding:72px 0;}.section.tight{padding:56px 0;}}
@media (max-width:575.98px){.section{padding:56px 0;}.section.tight{padding:44px 0;}.sec-head{margin-bottom:32px;}}

/* ---------- 对照表 ---------- */
.table-shell{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:8px;overflow:hidden;
}
.cmp-table{width:100%;border-collapse:separate;border-spacing:0;margin:0;}
.cmp-table caption{
  caption-side:top;text-align:left;font-size:14px;color:var(--c-muted);
  padding:16px 20px 12px;
}
.cmp-table thead th{
  background:var(--c-primary-50);color:var(--c-primary-700);
  font-size:14px;font-weight:600;text-align:left;
  padding:14px 20px;border-bottom:1px solid var(--c-line);white-space:nowrap;
}
.cmp-table thead th:first-child{border-radius:10px 0 0 0;}
.cmp-table thead th:last-child{border-radius:0 10px 0 0;}
.cmp-table tbody td{
  padding:16px 20px;font-size:15px;color:var(--c-ink);line-height:1.7;
  border-bottom:1px solid var(--c-line);vertical-align:top;
}
.cmp-table tbody tr:nth-child(even) td{background:#FAFCFE;}
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table tbody th{
  padding:16px 20px;font-size:15px;font-weight:600;color:var(--c-ink);
  text-align:left;vertical-align:top;border-bottom:1px solid var(--c-line);
  background:#FCFDFF;white-space:nowrap;
}
.cmp-table tbody tr:nth-child(even) th{background:#F5F9FD;}
.cmp-table tbody tr:last-child th{border-bottom:0;}
.cell-note{display:block;font-size:13px;color:var(--c-muted);margin-top:4px;}
.pill-time{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:13px;font-weight:500;
  background:var(--c-accent-50);color:#0B7A6D;white-space:nowrap;
}
.table-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px 18px;border-top:1px dashed var(--c-line);margin-top:8px;
  font-size:14px;color:var(--c-muted);
}
@media (max-width:991.98px){
  .table-shell{background:transparent;border:0;box-shadow:none;padding:0;}
  .cmp-table caption{padding-left:0;}
  .cmp-table thead{display:none;}
  .cmp-table,.cmp-table tbody,.cmp-table tr,.cmp-table td,.cmp-table th{display:block;width:100%;}
  .cmp-table tbody tr{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--sh-1);padding:6px 0;margin-bottom:16px;
  }
  .cmp-table tbody th{
    background:transparent!important;border-bottom:1px solid var(--c-line);
    padding:14px 18px;font-size:16px;white-space:normal;
  }
  .cmp-table tbody td{
    background:transparent!important;border-bottom:0;padding:10px 18px;
    display:flex;gap:14px;align-items:flex-start;
  }
  .cmp-table tbody td::before{
    content:attr(data-th);flex:0 0 92px;font-size:13px;color:var(--c-muted);
    font-weight:500;line-height:1.7;
  }
  .cmp-table tbody td:last-child{padding-bottom:16px;}
  .table-foot{padding:0 0 8px;}
}

/* ---------- 图文说明 ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.split+.split{margin-top:72px;}
.split.rev .split-media{order:2;}
.split-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);
  box-shadow:var(--sh-2);background:var(--c-primary-50);
}
.split-media img{aspect-ratio:4/3;object-fit:cover;width:100%;border-radius:var(--r-img);}
.split h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:14px;}
.split p{font-size:16px;line-height:1.85;color:var(--c-muted);margin-bottom:18px;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:10px;font-size:15px;line-height:1.75;color:var(--c-ink);}
.check-list li i{color:var(--c-accent);margin-top:5px;font-size:14px;flex:0 0 auto;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);}
.text-link:hover{gap:10px;color:var(--c-primary-700);}
@media (max-width:991.98px){
  .split{grid-template-columns:1fr;gap:28px;}
  .split.rev .split-media{order:0;}
  .split+.split{margin-top:52px;}
}

/* ---------- 双 CTA 条 ---------- */
.dual-cta{
  background:var(--c-primary-50);border:1px solid rgba(26,95,168,.14);
  border-radius:20px;padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.dual-cta::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:240px;height:240px;
  border:18px solid rgba(26,95,168,.05);border-radius:50%;pointer-events:none;
}
.dual-cta h2{font-size:clamp(20px,2.2vw,26px);line-height:1.4;margin-bottom:8px;}
.dual-cta p{font-size:15px;color:var(--c-muted);max-width:520px;}
.dual-cta .actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}
@media (max-width:767.98px){
  .dual-cta{padding:28px 22px;flex-direction:column;align-items:stretch;}
  .dual-cta .actions{flex-direction:column;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line)!important;
  border-radius:var(--r-card)!important;margin-bottom:14px;overflow:hidden;
  box-shadow:var(--sh-1);transition:border-color .22s ease,box-shadow .22s ease;
}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(26,95,168,.35)!important;box-shadow:var(--sh-2);}
.accordion-button{
  background:var(--c-surface)!important;color:var(--c-ink)!important;
  font-size:17px;font-weight:600;line-height:1.5;
  padding:20px 54px 20px 22px;box-shadow:none!important;border-radius:var(--r-card)!important;
}
.accordion-button:not(.collapsed){color:var(--c-primary)!important;}
.accordion-button::after{
  content:"\002B";display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:500;color:var(--c-primary);
  width:28px;height:28px;border-radius:8px;background:var(--c-primary-50);
  background-image:none!important;transform:none!important;
  position:absolute;right:20px;top:50%;margin-top:-14px;
}
.accordion-button:not(.collapsed)::after{content:"\2212";}
.accordion-body{
  padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--c-muted);
}
.accordion-body a{font-weight:600;}

/* ---------- 跨分类入口 ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cross-card{
  display:block;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,border-color .22s ease;
}
.cross-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(26,95,168,.3);}
.cross-card .ico{
  width:44px;height:44px;border-radius:12px;background:var(--c-accent-50);color:#0B7A6D;
  display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:16px;
}
.cross-card h3{font-size:17px;font-weight:600;margin-bottom:8px;color:var(--c-ink);}
.cross-card p{font-size:14px;line-height:1.7;color:var(--c-muted);margin-bottom:14px;}
.cross-card .go{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
@media (max-width:991.98px){.cross-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:575.98px){.cross-grid{grid-template-columns:1fr;gap:16px;}}

/* ---------- 底部 CTA ---------- */
.end-cta{
  background:var(--c-ink);border-radius:20px;padding:48px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.end-cta::before{
  content:"";position:absolute;left:-60px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,165,148,.22),transparent 68%);pointer-events:none;
}
.end-cta h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:10px;position:relative;}
.end-cta p{color:rgba(255,255,255,.72);font-size:15px;max-width:560px;position:relative;}
.end-cta .actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}
@media (max-width:767.98px){
  .end-cta{padding:32px 22px;flex-direction:column;align-items:stretch;}
  .end-cta .actions{flex-direction:column;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand strong{color:#fff;font-size:18px;font-weight:700;display:block;margin-bottom:14px;letter-spacing:-.2px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px;}
.f-contact{
  display:flex;align-items:center;gap:8px;margin-top:18px;font-size:13.5px;color:rgba(255,255,255,.72);
}
.f-contact i{color:var(--c-accent);}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.site-footer ul{display:flex;flex-direction:column;gap:11px;}
.site-footer ul a{color:rgba(255,255,255,.68);font-size:14px;transition:color .2s ease;}
.site-footer ul a:hover{color:#7FE0D3;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.18);
  border-radius:999px;padding:8px 16px;font-size:13px;cursor:pointer;transition:all .22s ease;
}
.to-top:hover{background:var(--c-primary);border-color:var(--c-primary);}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1A5FA8;
  --c-primary-700:#134A85;
  --c-primary-50:#EAF2FB;
  --c-accent:#12A594;
  --c-accent-50:#E6F6F4;
  --c-cta:#FF6B35;
  --c-ink:#0E2233;
  --c-muted:#5C6E82;
  --c-line:#E2E9F1;
  --c-bg:#F4F7FA;
  --c-surface:#FFFFFF;
  --sh-1:0 2px 8px rgba(14,34,51,.05);
  --sh-2:0 8px 28px rgba(14,34,51,.08);
  --sh-3:0 18px 44px rgba(14,34,51,.12);
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --bs-primary:#1A5FA8;
  --bs-primary-rgb:26,95,168;
  --bs-body-color:#0E2233;
  --bs-body-bg:#F4F7FA;
  --bs-border-radius:10px;
  --bs-border-color:#E2E9F1;
  --bs-link-color:#1A5FA8;
  --bs-link-hover-color:#134A85;
  --bs-font-sans-serif:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-ink);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
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-700);text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
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;color:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;height:76px;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(26,95,168,.10);
  box-shadow:var(--sh-1);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{background:#FFFFFF;box-shadow:var(--sh-2);border-bottom-color:transparent}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:0 0 42px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;letter-spacing:.5px;
  box-shadow:0 6px 16px rgba(26,95,168,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.22}
.brand-text strong{font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;white-space:nowrap}
.brand-text span{font-size:11px;color:var(--c-muted);letter-spacing:.5px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  position:relative;display:inline-block;padding:8px 12px;border-radius:8px;
  font-size:14.5px;font-weight:500;color:var(--c-ink);white-space:nowrap;transition:.2s ease;
}
.nav-links a:hover{color:var(--c-primary);background:rgba(26,95,168,.06)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  color:var(--c-ink);background:rgba(255,255,255,.6);border:1px solid var(--c-line);transition:.2s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:#bcd6ef;background:#fff}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 18px;
  border-radius:var(--r-btn);background:var(--c-primary-50);color:var(--c-primary);
  font-size:14px;font-weight:600;white-space:nowrap;transition:.22s ease;
}
.btn-cta:hover{background:var(--c-primary);color:#fff;transform:translateY(-1px)}
.site-header.is-stuck .btn-cta{background:var(--c-primary);color:#fff}
.site-header.is-stuck .btn-cta:hover{background:var(--c-primary-700)}
.burger{
  display:none;width:42px;height:42px;border-radius:10px;place-items:center;
  color:var(--c-ink);border:1px solid var(--c-line);background:#fff;font-size:17px;
}
.burger:hover{color:var(--c-primary)}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,34,51,.45);z-index:1050;
  opacity:0;visibility:hidden;transition:.25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;z-index:1060;
  background:#fff;border-radius:20px 0 0 20px;padding:24px 22px 32px;
  transform:translateX(105%);transition:transform .28s ease;
  overflow-y:auto;box-shadow:-10px 0 40px rgba(14,34,51,.16);
}
.drawer.is-open{transform:translateX(0)}
.drawer-close{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--c-line);color:var(--c-ink);margin-left:auto;font-size:16px;
}
.drawer-close:hover{color:var(--c-primary);border-color:#bcd6ef}
.drawer-brand{display:block;font-size:17px;font-weight:700;color:var(--c-ink);margin:20px 0 18px}
.drawer-links{display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--c-line);padding-top:16px}
.drawer-links a{
  padding:12px 10px;border-radius:10px;font-size:15px;font-weight:500;color:var(--c-ink);transition:.2s ease;
}
.drawer-links a:hover{background:var(--c-primary-50);color:var(--c-primary)}
.drawer-links a.is-active{color:var(--c-primary);background:var(--c-primary-50);font-weight:600}
.drawer-cta{width:100%;margin-top:22px;height:48px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1.5px solid transparent;transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease;
}
.btn-solid{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(26,95,168,.22)}
.btn-solid:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px)}
.btn-solid:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-700)}
.btn-white{background:#fff;color:var(--c-primary)}
.btn-white:hover{background:#EAF2FB;color:var(--c-primary-700);transform:translateY(-1px)}
.btn-outline-white{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-outline-white:hover{background:rgba(255,255,255,.15);color:#fff}
.btn-sm{height:42px;padding:0 20px;font-size:14px}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;
  padding:136px 0 76px;
  background-image:linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(244,247,250,.98) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:#B6C4D3}
.crumbs .current{color:var(--c-primary);font-weight:500}
.page-hero h1{font-size:clamp(28px,3.4vw,40px);line-height:1.28;letter-spacing:-.4px}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.8;color:var(--c-muted);max-width:620px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:var(--c-primary-50);color:var(--c-primary);font-size:13px;font-weight:500;
}
.pill--accent{background:var(--c-accent-50);color:#0B7C6E}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:18px;
  box-shadow:var(--sh-3);border:1px solid rgba(255,255,255,.8);
}
.hero-media::after{
  content:"";position:absolute;left:-18px;bottom:-18px;width:120px;height:120px;border-radius:24px;
  background-image:radial-gradient(rgba(26,95,168,.16) 1.2px,transparent 1.2px);
  background-size:12px 12px;z-index:-1;
}

/* ============ 板块通用 ============ */
.section{padding:88px 0}
.section--white{background:var(--c-surface)}
.section--tint{background:var(--c-primary-50)}
.section--last{padding-bottom:0}
.sec-head{max-width:780px;margin:0 auto 48px;text-align:center}
.sec-head.is-left{margin-left:0;text-align:left}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:600;
  color:var(--c-accent);letter-spacing:.08em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-accent)}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);letter-spacing:-.3px}
.sec-head p{margin-top:14px;font-size:16px;line-height:1.8;color:var(--c-muted)}

/* ============ 图标卡网格 ============ */
.icon-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.icon-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:30px 26px;box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.icon-card::after{
  content:attr(data-idx);position:absolute;right:18px;top:10px;
  font-size:46px;font-weight:700;line-height:1;color:rgba(26,95,168,.06);
}
.icon-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#cfe0f2}
.icon-badge{
  width:52px;height:52px;border-radius:14px;background:var(--c-primary-50);
  color:var(--c-accent);display:grid;place-items:center;font-size:21px;margin-bottom:20px;
}
.icon-card h3{font-size:19px;margin-bottom:10px;position:relative;z-index:1}
.icon-card p{font-size:15px;line-height:1.78;color:var(--c-muted);position:relative;z-index:1}
.icon-card .card-tag{
  display:inline-block;margin-top:18px;padding:4px 12px;border-radius:999px;
  background:var(--c-primary-50);color:var(--c-primary);font-size:13px;font-weight:500;
}

/* ============ 指标条 ============ */
.metrics-band{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:76px 0}
.metrics{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:0 22px;text-align:center;border-right:1px solid var(--c-line)}
.metric:last-child{border-right:0}
.metric strong{
  display:block;font-size:clamp(34px,4vw,46px);font-weight:700;line-height:1.1;
  color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:-1px;
}
.metric strong em{font-style:normal;font-size:18px;font-weight:600;margin-left:4px;color:var(--c-muted)}
.metric span{display:block;margin-top:10px;font-size:14px;color:var(--c-muted);line-height:1.6}
.metrics-note{
  max-width:760px;margin:44px auto 0;text-align:center;font-size:15px;line-height:1.9;color:var(--c-muted);
}

/* ============ FAQ ============ */
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:#bcd6ef;box-shadow:var(--sh-2)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--c-ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-ico{position:relative;width:18px;height:18px;flex:0 0 18px}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:.22s ease;
}
.faq-ico::before{left:0;top:8px;width:18px;height:2px}
.faq-ico::after{left:8px;top:0;width:2px;height:18px}
.faq-item[open] .faq-ico::after{transform:rotate(90deg);opacity:0}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.88;color:var(--c-muted)}

/* ============ CTA 条 ============ */
.cta-band{padding:88px 0 96px;background:var(--c-bg)}
.cta-inner{
  position:relative;overflow:hidden;border-radius:20px;padding:52px 48px;
  background:linear-gradient(120deg,#1A5FA8 0%,#1F6FBF 100%);
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:0 20px 46px rgba(26,95,168,.22);
}
.cta-inner::before{
  content:"";position:absolute;right:-40px;top:-40px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(rgba(255,255,255,.16) 1.4px,transparent 1.4px);
  background-size:14px 14px;opacity:.9;pointer-events:none;
}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);color:#fff;position:relative;z-index:1}
.cta-inner p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.86);max-width:520px;position:relative;z-index:1}
.cta-actions{display:flex;gap:14px;flex-shrink:0;position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{background:#0E2233;color:#B9C7D6;padding:72px 0 0;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand strong{display:block;font-size:18px;color:#fff;margin-bottom:14px;letter-spacing:-.2px}
.footer-brand p{font-size:14px;line-height:1.85;color:#9FB1C4;max-width:350px}
.f-contact{margin-top:18px;font-size:13px;color:#8FA4B8;display:flex;align-items:center;gap:8px}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.site-footer ul li{margin-bottom:11px}
.site-footer ul a{font-size:14px;color:#B9C7D6}
.site-footer ul a:hover{color:#5FD3C4}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA4B8;
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:8px;
  border:1px solid rgba(255,255,255,.16);color:#B9C7D6;font-size:13px;transition:.2s ease;
}
.to-top:hover{color:#fff;border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.06)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-links a{padding:8px 9px;font-size:14px}
  .hero-grid{gap:40px}
}
@media (max-width:991.98px){
  .nav-links,.nav-actions .icon-btn,.nav-actions .btn-cta{display:none}
  .burger{display:grid}
  .site-header{height:64px}
  .nav-inner{height:64px}
  .page-hero{padding:110px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media{order:-1}
  .hero-media img{aspect-ratio:16/9}
  .section{padding:72px 0}
  .metrics-band{padding:60px 0}
  .icon-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{padding:40px 32px;gap:26px}
}
@media (max-width:767.98px){
  .wrap{padding:0 16px}
  .page-hero{padding:96px 0 52px}
  .page-hero h1{font-size:clamp(24px,6.4vw,30px)}
  .hero-lead{font-size:15.5px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .icon-grid{grid-template-columns:1fr;gap:16px}
  .icon-card{padding:24px 20px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric{padding:22px 12px;border-right:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
  .metric:nth-child(2n){border-right:0}
  .metric:nth-child(n+3){border-bottom:0}
  .metric strong{font-size:32px}
  .metrics-note{margin-top:32px;text-align:left;font-size:14.5px}
  .faq-item summary{padding:18px;font-size:16px}
  .faq-body{padding:0 18px 20px}
  .cta-band{padding:56px 0 64px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:24px}
  .cta-actions{width:100%;flex-direction:column;gap:12px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:36px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
}
@media (max-width:575.98px){
  .brand-text span{display:none}
  .brand-text strong{font-size:15px}
  .hero-tags{gap:8px}
  .pill{font-size:12.5px;padding:5px 12px}
  .btn{height:46px;padding:0 20px;font-size:14.5px}
  .icon-card h3{font-size:17.5px}
  .footer-grid{grid-template-columns:1fr}
}