/* roulang page: index */
:root{
  --c-primary:#2A6BB0;
  --c-primary-dark:#1E548C;
  --c-primary-soft:#EAF1F9;
  --c-accent:#E2854B;
  --c-accent-soft:#FDF1E7;
  --c-secondary:#557A88;
  --c-bg:#F6F8FB;
  --c-surface:#FFFFFF;
  --c-border:#E3E9F0;
  --c-border-strong:#C9D6E3;
  --c-text:#16232F;
  --c-text-body:#40505F;
  --c-text-muted:#7A8A99;
  --r-card:12px;
  --r-lg:16px;
  --r-btn:8px;
  --r-input:8px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(22,35,47,.04),0 2px 8px rgba(22,35,47,.04);
  --sh-md:0 6px 20px rgba(22,35,47,.06);
  --sh-hover:0 12px 28px rgba(22,35,47,.10);
  --bs-primary:#2A6BB0;
  --bs-body-font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text-body);
  background:var(--c-bg);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:650;letter-spacing:0}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25}
h2{font-size:clamp(24px,2.6vw,31px);line-height:1.35}
h3{font-size:21px;line-height:1.45;font-weight:600}
p{margin:0 0 1.15em}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-dark)}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--c-surface)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:600;line-height:1;
  padding:7px 14px;border-radius:var(--r-pill);
}
.section-head{max-width:760px;margin-bottom:48px}
.section-head p{margin-top:14px;color:var(--c-text-muted);font-size:16px}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.head-row .section-head{margin-bottom:0}
.link-arrow{font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.link-arrow span{transition:transform .2s ease;display:inline-block}
.link-arrow:hover span{transform:translateX(4px)}

/* 按钮 */
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:12px 24px;font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;transition:all .18s ease;min-height:44px}
.btn-primary-x{background:var(--c-primary);color:#fff}
.btn-primary-x:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary-x:active{transform:translateY(0);box-shadow:var(--sh-sm)}
.btn-ghost-x{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost-x:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-sm-x{padding:9px 18px;font-size:14px;min-height:40px}
.btn-light-x{background:#fff;color:var(--c-primary)}
.btn-light-x:hover{background:var(--c-accent-soft);color:var(--c-primary-dark)}
.badge-x{display:inline-block;background:var(--c-primary-soft);color:var(--c-primary);
  border-radius:var(--r-pill);padding:4px 10px;font-size:12.5px;font-weight:600;line-height:1.6}
.badge-soft{background:#EFF4F6;color:var(--c-secondary)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1000;background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow .2s ease}
.site-header.scrolled{box-shadow:var(--sh-sm)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:24px;height:24px;border-radius:6px;background:var(--c-primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.brand-name{font-size:17px;font-weight:600;color:var(--c-text);line-height:1}
.brand-divider{width:1px;height:16px;background:var(--c-border-strong);margin-left:4px}
.brand-tag{font-size:12px;color:var(--c-text-muted);line-height:1}
.nav-list{display:flex;align-items:center;gap:30px}
.nav-list a{font-size:15px;font-weight:500;color:var(--c-text-body);position:relative;padding:8px 2px}
.nav-list a::after{content:"";position:absolute;left:50%;bottom:0;height:2px;width:0;background:var(--c-primary);border-radius:2px;transform:translateX(-50%);transition:width .18s ease}
.nav-list a:hover{color:var(--c-primary)}
.nav-list a:hover::after{width:60%}
.nav-list a.active{color:var(--c-primary);background:var(--c-primary-soft);border-radius:var(--r-pill);padding:8px 14px}
.nav-list a.active::after{display:none}
.nav-actions{display:flex;align-items:center;gap:16px}
.nav-toggle{display:none;width:44px;height:44px;background:transparent;border:0;padding:0;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}
.nav-toggle i{display:block;width:20px;height:2px;background:var(--c-text);border-radius:2px}
.mobile-panel{display:none;border-top:1px solid var(--c-border);background:var(--c-surface)}
.mobile-panel.show{display:block}
.mobile-panel a{display:flex;align-items:center;height:44px;padding:0 24px;font-size:15px;color:var(--c-text-body);border-bottom:1px solid var(--c-border)}
.mobile-panel a.active{color:var(--c-primary);border-left:3px solid var(--c-primary);background:#FBFDFF;padding-left:21px}
.mobile-panel .m-cta{margin:14px 24px;justify-content:center;border-bottom:0}

/* Hero */
.hero{padding:72px 0 80px;background:var(--c-surface);position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;max-height:none}
.hero h1{margin:20px 0 18px}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-text-body);max-width:560px;margin-bottom:30px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.trust-bar{display:flex;align-items:center;flex-wrap:wrap;gap:0}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-body);padding:0 18px;border-left:1px solid var(--c-border)}
.trust-item:first-child{padding-left:0;border-left:0}
.trust-item svg{flex-shrink:0}
.hero-visual{position:relative}
.hero-visual .img-box{border-radius:var(--r-lg);overflow:hidden;background:var(--c-primary-soft);position:relative;z-index:1}
.hero-visual .img-box img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-visual::after{content:"";position:absolute;right:-38px;bottom:-38px;width:150px;height:150px;background:var(--c-primary-soft);border-radius:var(--r-lg);transform:rotate(45deg);z-index:0}
.hero-visual::before{content:"";position:absolute;right:-10px;bottom:-56px;width:110px;height:110px;background:rgba(42,107,176,.10);border-radius:12px;transform:rotate(45deg);z-index:2}

/* 价值主张 */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.value-item{padding:0 36px;border-left:1px solid var(--c-border)}
.value-item:first-child{border-left:0;padding-left:0}
.value-num{font-size:14px;font-weight:650;color:var(--c-accent);letter-spacing:.02em}
.value-item h3{margin:12px 0 10px}
.value-item p{font-size:15px;color:var(--c-text-body);margin:0}

/* 能力分组 */
.cap-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;margin-bottom:24px}
.cap-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);padding:34px;box-shadow:var(--sh-sm);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--c-primary-soft)}
.cap-icon{width:48px;height:48px;border-radius:var(--r-pill);background:var(--c-primary-soft);display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.cap-card h3{margin-bottom:12px}
.cap-card p.cap-desc{font-size:15px;color:var(--c-text-body)}
.check-list li{position:relative;padding-left:22px;font-size:15px;margin-bottom:10px;color:var(--c-text-body)}
.check-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--c-primary)}
.cap-wide{display:grid;grid-template-columns:1fr 340px;gap:40px;align-items:center;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);padding:40px;box-shadow:var(--sh-sm)}
.cap-wide .img-box{border-radius:var(--r-card);overflow:hidden;background:var(--c-primary-soft)}
.cap-wide .img-box img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* 场景 */
.scene-wrap{display:grid;grid-template-columns:280px 1fr;gap:40px;align-items:start}
.scene-tabs{display:flex;flex-direction:column;gap:6px}
.scene-tab{text-align:left;background:transparent;border:0;border-left:3px solid transparent;padding:14px 16px;border-radius:0 var(--r-card) var(--r-card) 0;font-size:15px;font-weight:600;color:var(--c-text-body);cursor:pointer;transition:all .18s ease;min-height:44px;line-height:1.5}
.scene-tab:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.scene-tab.is-active{background:var(--c-primary-soft);border-left-color:var(--c-primary);color:var(--c-primary)}
.scene-panel{display:none}
.scene-panel.is-active{display:grid;grid-template-columns:320px 1fr;gap:36px;align-items:start}
.scene-panel .img-box{border-radius:var(--r-card);overflow:hidden;background:var(--c-primary-soft)}
.scene-panel .img-box img{width:100%;aspect-ratio:4/3;object-fit:cover}
.scene-panel h3{margin-bottom:10px}
.scene-meta{font-size:13px;color:var(--c-secondary);margin-bottom:12px;font-weight:600}
.scene-panel p{font-size:15px;margin-bottom:18px}

/* 案例 */
.case-scroll{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding:8px 24px 24px;margin:0 -24px}
.case-card{flex:0 0 340px;scroll-snap-align:start;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-sm);transition:transform .24s ease,box-shadow .24s ease}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.case-quote{font-size:15.5px;color:var(--c-text-body);margin:18px 0 22px}
.case-num{font-size:36px;font-weight:650;color:var(--c-accent);font-variant-numeric:tabular-nums;line-height:1.1}
.case-num-cap{font-size:13px;color:var(--c-text-muted);margin-top:6px}

/* 价格 */
.seg-wrap{display:flex;justify-content:center;margin-bottom:44px}
.seg{display:inline-flex;background:var(--c-primary-soft);border-radius:var(--r-pill);padding:4px}
.seg button{border:0;background:transparent;border-radius:var(--r-pill);padding:9px 22px;font-size:14px;font-weight:600;color:var(--c-text-body);cursor:pointer;transition:all .18s ease;min-height:40px}
.seg button.is-active{background:var(--c-surface);color:var(--c-primary);box-shadow:var(--sh-sm)}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);padding:34px 30px;box-shadow:var(--sh-sm);display:flex;flex-direction:column;position:relative;transition:transform .24s ease,box-shadow .24s ease}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.price-card.is-featured{border-top:3px solid var(--c-primary);box-shadow:var(--sh-md)}
.price-flag{position:absolute;top:-1px;right:24px;background:var(--c-accent-soft);color:var(--c-accent);font-size:12.5px;font-weight:650;padding:5px 12px;border-radius:0 0 8px 8px}
.price-name{font-size:19px;font-weight:600;color:var(--c-text)}
.price-sub{font-size:13px;color:var(--c-text-muted);margin:8px 0 22px}
.price-amount{font-size:38px;font-weight:650;color:var(--c-text);font-variant-numeric:tabular-nums;line-height:1.1}
.price-amount small{font-size:15px;font-weight:500;color:var(--c-text-muted);margin-left:6px}
.price-cycle{font-size:13px;color:var(--c-text-muted);margin:8px 0 24px}
.price-list{margin-bottom:28px;flex:1}
.price-list li{position:relative;padding-left:24px;font-size:14.5px;margin-bottom:11px}
.price-list li::before{content:"";position:absolute;left:2px;top:9px;width:10px;height:6px;border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);transform:rotate(-45deg)}
.price-list li.muted{color:var(--c-text-muted);opacity:.4}
.price-list li.muted::before{border-color:var(--c-text-muted)}

/* 资讯 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--c-primary-soft)}
.news-thumb{background:var(--c-primary-soft);overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .24s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:24px;display:flex;flex-direction:column;flex:1}
.news-title{font-size:19px;font-weight:600;color:var(--c-text);line-height:1.5;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-title{color:var(--c-primary)}
.news-sum{font-size:14px;color:var(--c-text-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;flex:1}
.news-meta{font-size:13px;color:var(--c-text-muted);border-top:1px solid var(--c-border);padding-top:14px}
.empty-state{border:1px dashed var(--c-border-strong);border-radius:var(--r-card);padding:56px 24px;text-align:center;background:var(--c-surface)}
.empty-icon{width:56px;height:56px;border-radius:var(--r-pill);background:var(--c-primary-soft);display:flex;align-items:center;justify-content:center;margin:0 auto 18px}
.empty-state p{font-size:15px;color:var(--c-text-muted);margin-bottom:20px}

/* FAQ */
.faq-list{max-width:860px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;transition:border-color .2s ease}
.faq-item[open]{border-left:3px solid var(--c-primary)}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 26px;font-size:16px;font-weight:600;color:var(--c-text);display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:44px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:400;color:var(--c-primary);flex-shrink:0;transition:transform .2s ease}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:0 26px 22px;font-size:15px;color:var(--c-text-body);margin:0}

/* CTA */
.cta-bar{background:var(--c-primary);border-radius:var(--r-lg);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-bar h2{color:#fff;font-size:26px;margin-bottom:10px}
.cta-bar p{color:rgba(255,255,255,.86);margin:0;max-width:640px;font-size:15px}

/* 页脚 */
.site-footer{background:var(--c-text);color:#B9C5D0;padding:72px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-tag{color:#8C9BA8}
.footer-grid p{font-size:14px;line-height:1.9;color:#96A5B2;margin:0}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14px;color:#B9C5D0;line-height:2}
.footer-links a:hover{color:#fff}
.footer-contact li{font-size:14px;line-height:2;color:#B9C5D0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:22px 0;font-size:13px;color:#8996A3;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* 响应式 */
@media (max-width:1199px){
  .section{padding:80px 0}
  .hero-grid{gap:36px}
  .scene-wrap{grid-template-columns:240px 1fr;gap:28px}
  .scene-panel.is-active{grid-template-columns:280px 1fr;gap:28px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .nav-list,.nav-actions .btn-primary-x{display:none}
  .nav-toggle{display:flex}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .value-grid{grid-template-columns:1fr;gap:28px}
  .value-item{border-left:0;padding:0 0 0 18px;border-left:3px solid var(--c-primary-soft)}
  .value-item:first-child{padding-left:18px;border-left:3px solid var(--c-primary-soft)}
  .cap-grid{grid-template-columns:1fr}
  .cap-wide{grid-template-columns:1fr;gap:28px}
  .scene-wrap{grid-template-columns:1fr}
  .scene-tabs{flex-direction:row;overflow-x:auto;gap:10px;padding-bottom:8px}
  .scene-tab{border-left:0;border-bottom:3px solid transparent;border-radius:var(--r-card) var(--r-card) 0 0;white-space:nowrap}
  .scene-tab.is-active{border-left:0;border-bottom-color:var(--c-primary)}
  .scene-panel.is-active{grid-template-columns:1fr;gap:24px}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-bar{padding:36px 32px}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .container-x{padding:0 16px}
  .nav-wrap{height:60px}
  .brand-divider,.brand-tag{display:none}
  .hero h1{font-size:29px}
  .hero-sub{font-size:16px}
  .hero-btns{flex-direction:column;align-items:stretch}
  .hero-btns .btn-x{width:100%}
  .trust-bar{gap:12px}
  .trust-item{border-left:0;padding:0;width:48%}
  .hero-visual::after,.hero-visual::before{display:none}
  .news-grid{grid-template-columns:1fr}
  .cap-card,.cap-wide,.price-card,.case-card{padding:24px}
  .case-scroll{padding:8px 16px 20px;margin:0 -16px}
  .case-card{flex:0 0 82%}
  .cta-bar{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-bar .btn-x{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .price-card,.cap-card,.news-card,.case-card,.faq-item{box-shadow:var(--sh-sm)}
}

/* roulang page: article */
:root{
  --c-primary:#2A6BB0;
  --c-primary-dark:#1E548C;
  --c-primary-soft:#EAF1F9;
  --c-accent:#E2854B;
  --c-accent-soft:#FDF1E7;
  --c-secondary:#557A88;
  --c-bg:#F6F8FB;
  --c-surface:#FFFFFF;
  --c-border:#E3E9F0;
  --c-border-strong:#C9D6E3;
  --c-text:#16232F;
  --c-text-body:#40505F;
  --c-text-muted:#7A8A99;
  --r-card:12px;
  --r-lg:16px;
  --r-btn:8px;
  --sh-sm:0 1px 2px rgba(22,35,47,.04),0 2px 8px rgba(22,35,47,.04);
  --sh-md:0 6px 20px rgba(22,35,47,.06);
  --sh-hover:0 12px 28px rgba(22,35,47,.10);
  --bs-primary:#2A6BB0;
  --bs-primary-rgb:42,107,176;
  --bs-body-color:#40505F;
  --bs-border-radius:12px;
  --bs-link-color:#2A6BB0;
  --bs-link-hover-color:#1E548C;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text-body);
  background:var(--c-bg);
  letter-spacing:0;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-dark)}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:650;line-height:1.35}
p{margin:0 0 1.15em}
ul,ol{margin:0 0 1.15em;padding-left:1.3em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-sm)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.brand-mark{
  width:24px;height:24px;border-radius:6px;background:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 24px;
}
.brand-name{font-size:17px;font-weight:600;color:var(--c-text);letter-spacing:0}
.brand-divider{width:1px;height:14px;background:var(--c-border-strong);display:inline-block}
.brand-tag{font-size:12px;color:var(--c-text-muted)}
.nav-list{display:flex;align-items:center;gap:30px;margin:0;padding:0;list-style:none}
.nav-list a{
  position:relative;display:inline-block;
  font-size:15px;font-weight:500;color:var(--c-text-body);
  padding:8px 2px;transition:color .18s ease;
}
.nav-list a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:translateX(-50%);transition:width .18s ease;
}
.nav-list a:hover{color:var(--c-primary)}
.nav-list a:hover::after{width:60%}
.nav-list a.active{
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:8px 14px;border-radius:999px;
}
.nav-list a.active::after{display:none}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  padding:10px 20px;border-radius:var(--r-btn);border:1px solid var(--c-primary);
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.header-cta:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;
  align-items:center;justify-content:center;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--c-text);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{display:none;background:var(--c-surface);border-top:1px solid var(--c-border)}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:flex;align-items:center;height:44px;padding:0 24px;
  font-size:15px;color:var(--c-text-body);border-bottom:1px solid var(--c-border);
}
.mobile-panel a.active{color:var(--c-primary);box-shadow:inset 3px 0 0 var(--c-primary);background:var(--c-primary-soft)}

/* ---------- buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;padding:11px 22px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;transition:all .18s ease;text-align:center;
}
.btn-x.primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn-x.primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-x.ghost{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary)}
.btn-x.ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.btn-x.text-only{padding:0;border:0;background:transparent;color:var(--c-primary)}
.btn-x.text-only .arrow{transition:transform .18s ease}
.btn-x.text-only:hover .arrow{transform:translateX(4px)}

/* ---------- crumbs ---------- */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-border)}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:14px 0;font-size:13px;color:var(--c-text-muted);
}
.crumb a{color:var(--c-text-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:var(--c-border-strong)}
.crumb .current{color:var(--c-text-muted);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article head ---------- */
.article-head{padding:48px 0 40px}
.article-head .inner{max-width:820px}
.badge-x{
  display:inline-block;background:var(--c-primary-soft);color:var(--c-primary);
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;line-height:1.6;
}
.badge-x.grey{background:#EEF2F6;color:var(--c-secondary)}
.article-head h1{
  font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:650;
  margin:18px 0 16px;letter-spacing:0;
}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--c-text-muted)}
.meta-row .dot{color:var(--c-border-strong)}

/* ---------- layout ---------- */
.article-wrap{padding:0 0 96px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article-panel{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-sm);padding:40px 44px;
}
.article-body{max-width:820px;font-size:16px;line-height:1.85;color:var(--c-text-body)}
.article-body h2{
  position:relative;font-size:23px;line-height:1.4;margin:44px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:19px;margin:30px 0 12px}
.article-body p{margin-bottom:1.2em}
.article-body ul{padding-left:0;list-style:none}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:2px;background:var(--c-primary);
}
.article-body ol{padding-left:1.4em}
.article-body ol li{margin-bottom:8px}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;background:var(--c-primary-soft);
  border-left:3px solid var(--c-accent);border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--c-text);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-card);margin:22px auto;box-shadow:var(--sh-sm)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--c-text-muted);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body table th,.article-body table td{border:1px solid var(--c-border);padding:10px 14px;text-align:left}
.article-body table th{background:var(--c-primary-soft);color:var(--c-text);font-weight:600}
.article-body table tbody tr:nth-child(even){background:#F6F8FB}
.article-body pre{
  background:#F2F5F9;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:18px;overflow:auto;font-size:14px;line-height:1.7;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body code{
  background:#F2F5F9;border-radius:4px;padding:2px 5px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre code{background:transparent;padding:0}
.article-body a{border-bottom:1px dashed var(--c-primary)}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:32px 0}

.article-foot{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:24px;border-top:1px solid var(--c-border);
}
.article-foot .tag-line{font-size:13px;color:var(--c-text-muted)}

.notfound{
  border:1px dashed var(--c-border-strong);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;background:var(--c-surface);
}
.notfound .icon{
  width:48px;height:48px;border-radius:999px;background:var(--c-primary-soft);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.notfound h2{font-size:20px;margin-bottom:8px}
.notfound p{font-size:14px;color:var(--c-text-muted);margin-bottom:18px}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:22px;
}
.side-title{font-size:15px;font-weight:650;color:var(--c-text);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--c-primary)}
.side-list{list-style:none;margin:0;padding:0}
.side-list li + li{border-top:1px solid var(--c-border)}
.side-list a{
  display:block;padding:12px 0;font-size:14px;line-height:1.6;color:var(--c-text-body);
  overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.side-list a:hover{color:var(--c-primary)}
.side-list .side-date{display:block;font-size:12px;color:var(--c-text-muted);margin-top:4px}
.side-cta{
  background:var(--c-primary);color:#fff;border-radius:var(--r-card);padding:22px;
}
.side-cta h3{color:#fff;font-size:16px;margin-bottom:8px}
.side-cta p{color:rgba(255,255,255,.85);font-size:13px;line-height:1.7;margin-bottom:14px}
.side-cta .btn-x{background:#fff;color:var(--c-primary);border-color:#fff;width:100%}
.side-cta .btn-x:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary-soft)}

/* ---------- related ---------- */
.section{padding:0 0 96px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:28px;line-height:1.35}
.section-head .sub{font-size:14px;color:var(--c-text-muted);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-x{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-border);border-radius:var(--r-card);box-shadow:var(--sh-sm);
  overflow:hidden;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  height:100%;
}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--c-primary-soft)}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out}
.card-x:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{
  font-size:20px;line-height:1.45;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body .excerpt{
  font-size:14px;color:var(--c-text-muted);line-height:1.75;margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{font-size:13px;color:var(--c-text-muted);margin-top:auto}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-primary);border-radius:var(--r-lg);padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  box-shadow:var(--sh-md);
}
.cta-band h2{color:#fff;font-size:24px;line-height:1.4}
.cta-band p{color:rgba(255,255,255,.85);font-size:14px;margin:8px 0 0}
.cta-band .btn-x{background:#fff;color:var(--c-primary);border-color:#fff}
.cta-band .btn-x:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary-soft);transform:translateY(-1px)}

/* ---------- footer ---------- */
.site-footer{background:#16232F;color:#B9C6D2;padding:64px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-divider{background:rgba(255,255,255,.24)}
.footer-brand .brand-tag{color:#8FA3B5}
.site-footer p{font-size:14px;line-height:2;color:#B9C6D2;margin:0}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#B9C6D2}
.footer-links a:hover{color:#fff}
.footer-contact li{font-size:14px;line-height:2;color:#B9C6D2}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8FA3B5;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-head{padding:40px 0 32px}
  .article-panel{padding:36px}
  .section{padding-bottom:80px}
}
@media (max-width:991px){
  .nav-list,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:60px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static;top:auto}
  .article-panel{padding:28px 24px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .section{padding-bottom:64px}
  .article-head h1{font-size:clamp(26px,5.4vw,36px)}
}
@media (max-width:575px){
  .container-x{padding:0 16px}
  .article-head{padding:28px 0 24px}
  .article-panel{padding:22px 18px;box-shadow:var(--sh-sm)}
  .article-body h2{font-size:20px;margin-top:34px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .card-x{box-shadow:var(--sh-sm)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:26px 22px}
  .cta-band h2{font-size:20px}
  .crumb .current{max-width:180px}
  .section{padding-bottom:48px}
  .site-footer{padding-top:48px}
}

/* roulang page: category1 */
:root{
  --c-primary:#2A6BB0;
  --c-primary-dark:#1E548C;
  --c-primary-soft:#EAF1F9;
  --c-accent:#E2854B;
  --c-accent-soft:#FDF1E7;
  --c-secondary:#557A88;
  --c-bg:#F6F8FB;
  --c-surface:#FFFFFF;
  --c-border:#E3E9F0;
  --c-border-strong:#C9D6E3;
  --c-text:#16232F;
  --c-text-body:#40505F;
  --c-text-muted:#7A8A99;
  --r-card:12px;
  --r-lg:16px;
  --r-btn:8px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(22,35,47,.04),0 2px 8px rgba(22,35,47,.04);
  --sh-md:0 6px 20px rgba(22,35,47,.06);
  --sh-hover:0 12px 28px rgba(22,35,47,.10);
  --gutter:24px;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text-body);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color 180ms ease}
a:hover{color:var(--c-primary-dark)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:650;line-height:1.35}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}

/* ---------- 容器 ---------- */
.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow 200ms ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-sm)}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:var(--nav-h);
  gap:20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--c-text);
  flex:0 0 auto;
}
.brand:hover{color:var(--c-text)}
.brand-mark{
  width:24px;
  height:24px;
  border-radius:6px;
  background:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  flex:0 0 24px;
}
.brand-name{
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  letter-spacing:0;
}
.brand-divider{
  width:1px;
  height:14px;
  background:var(--c-border-strong);
  display:inline-block;
}
.brand-tag{
  font-size:12px;
  color:var(--c-text-muted);
  line-height:1;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-list a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--c-text-body);
  padding:8px 2px;
  line-height:1.4;
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  transform:translateX(-50%) scaleX(0);
  width:60%;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transition:transform 180ms ease;
}
.nav-list a:hover{color:var(--c-primary)}
.nav-list a:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-list a.active{
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:var(--r-pill);
  padding:8px 14px;
}
.nav-list a.active::after{display:none}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--c-primary);
  color:#fff;
  font-size:15px;
  font-weight:600;
  padding:10px 20px;
  border-radius:var(--r-btn);
  border:1px solid var(--c-primary);
  transition:all 180ms ease;
  white-space:nowrap;
}
.nav-cta:hover{
  background:var(--c-primary-dark);
  border-color:var(--c-primary-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-md);
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:1px solid var(--c-border);
  border-radius:var(--r-btn);
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--c-text);
  border-radius:2px;
  position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--c-text);
  border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-panel{
  display:none;
  border-top:1px solid var(--c-border);
  background:var(--c-surface);
}
.nav-panel.open{display:block}
.nav-panel a{
  display:block;
  padding:0 24px;
  height:44px;
  line-height:44px;
  color:var(--c-text-body);
  font-size:15px;
  border-bottom:1px solid var(--c-border);
}
.nav-panel a:last-child{border-bottom:0}
.nav-panel a.active{
  color:var(--c-primary);
  font-weight:600;
  box-shadow:inset 3px 0 0 var(--c-primary);
  background:var(--c-primary-soft);
}

/* ---------- 通用按钮 ---------- */
.btn-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  padding:12px 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:all 180ms ease;
  min-height:44px;
  line-height:1.3;
}
.btn-x.primary{
  background:var(--c-primary);
  border-color:var(--c-primary);
  color:#fff;
}
.btn-x.primary:hover{
  background:var(--c-primary-dark);
  border-color:var(--c-primary-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-md);
}
.btn-x.ghost{
  background:var(--c-surface);
  border-color:var(--c-primary);
  color:var(--c-primary);
}
.btn-x.ghost:hover{
  background:var(--c-primary-soft);
  color:var(--c-primary-dark);
}
.btn-x.white{
  background:#fff;
  color:var(--c-primary);
  border-color:#fff;
}
.btn-x.white:hover{
  background:#f2f7fd;
  color:var(--c-primary-dark);
}
.link-x{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary);
}
.link-x .arrow{transition:transform 180ms ease;display:inline-block}
.link-x:hover .arrow{transform:translateX(4px)}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  padding:40px 0 44px;
  position:relative;
  overflow:hidden;
}
.cat-hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.breadcrumb-x{
  font-size:13px;
  color:var(--c-text-muted);
  margin-bottom:16px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
}
.breadcrumb-x a{color:var(--c-text-muted)}
.breadcrumb-x a:hover{color:var(--c-primary)}
.breadcrumb-x .sep{color:var(--c-border-strong)}
.breadcrumb-x .current{color:var(--c-text-muted)}
.eyebrow{
  display:inline-block;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:13px;
  font-weight:600;
  padding:5px 12px;
  border-radius:var(--r-pill);
  margin-bottom:14px;
  letter-spacing:0;
}
.cat-hero h1{
  font-size:clamp(30px,4vw,46px);
  line-height:1.25;
  font-weight:650;
  margin-bottom:14px;
}
.cat-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--c-text-body);
  max-width:560px;
  margin:0;
}
.cat-hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-md);
  aspect-ratio:16/10;
  background:var(--c-primary-soft);
}
.cat-hero-media img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.cat-hero-media::after{
  content:"";
  position:absolute;
  right:0;
  bottom:0;
  width:96px;
  height:96px;
  background:rgba(42,107,176,.16);
  clip-path:polygon(100% 0,100% 100%,0 100%);
}

/* ---------- 分类主体布局 ---------- */
.cat-main{padding:64px 0 0}
.cat-layout{
  display:grid;
  grid-template-columns:200px 1fr;
  gap:48px;
  align-items:start;
}
.anchor-nav{
  position:sticky;
  top:96px;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  padding:16px 12px;
  box-shadow:var(--sh-sm);
}
.anchor-title{
  font-size:13px;
  color:var(--c-text-muted);
  padding:4px 10px 10px;
  border-bottom:1px solid var(--c-border);
  margin-bottom:8px;
}
.anchor-link{
  display:block;
  font-size:14px;
  color:var(--c-text-body);
  padding:9px 10px;
  border-radius:8px;
  line-height:1.5;
  transition:all 180ms ease;
  border-left:3px solid transparent;
}
.anchor-link:hover{
  color:var(--c-primary);
  background:var(--c-bg);
}
.anchor-link.active{
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-weight:600;
  border-left-color:var(--c-primary);
}
.cat-content{
  min-width:0;
  max-width:860px;
}
.section-block{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-lg);
  padding:40px;
  margin-bottom:28px;
  box-shadow:var(--sh-sm);
  scroll-margin-top:96px;
}
.section-block:last-child{margin-bottom:0}
.sec-head{margin-bottom:22px}
.sec-kicker{
  font-size:13px;
  font-weight:600;
  color:var(--c-accent);
  margin-bottom:8px;
  font-variant-numeric:tabular-nums;
}
.section-block h2{
  font-size:28px;
  line-height:1.35;
  font-weight:650;
  margin-bottom:12px;
}
.section-block h2::after{
  content:"";
  display:block;
  width:44px;
  height:3px;
  border-radius:2px;
  background:var(--c-primary);
  margin-top:12px;
}
.section-block h3{
  font-size:21px;
  line-height:1.45;
  font-weight:600;
  margin-bottom:8px;
}
.sec-text p{color:var(--c-text-body)}
.sec-text p + p{margin-top:0}
.lead-num{
  display:flex;
  align-items:baseline;
  gap:10px;
  margin-bottom:10px;
}
.lead-num .n{
  font-size:13px;
  font-weight:600;
  color:var(--c-accent);
  font-variant-numeric:tabular-nums;
}
.lead-num .t{
  font-size:20px;
  font-weight:650;
  color:var(--c-text);
  line-height:1.45;
}

/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  padding-left:30px;
  margin-top:26px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:7px;
  top:8px;
  bottom:8px;
  width:1px;
  background:var(--c-border);
}
.tl-item{
  position:relative;
  padding-bottom:30px;
}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:-30px;
  top:6px;
  width:15px;
  height:15px;
  border-radius:50%;
  background:var(--c-surface);
  border:3px solid var(--c-primary);
  box-sizing:border-box;
}
.tl-item h3{font-size:20px;margin-bottom:8px}
.tl-item p{font-size:15.5px;line-height:1.85;color:var(--c-text-body);margin:0}
.tl-item .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.badge-x{
  display:inline-block;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
  padding:4px 10px;
  border-radius:var(--r-pill);
  line-height:1.6;
}
.badge-x.secondary{
  background:#EDF2F4;
  color:var(--c-secondary);
}

/* ---------- 场景区 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:32px;
  align-items:start;
  margin-top:24px;
}
.scene-list li{
  position:relative;
  padding:0 0 20px 18px;
  border-left:3px solid var(--c-primary-soft);
  margin-bottom:18px;
}
.scene-list li:last-child{margin-bottom:0;padding-bottom:0}
.scene-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:3px;
  height:22px;
  background:var(--c-primary);
  border-radius:2px;
}
.scene-list .s-title{
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  margin-bottom:6px;
}
.scene-list .s-desc{
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-body);
  margin:0;
}
.scene-media{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--c-border);
  box-shadow:var(--sh-sm);
  background:var(--c-primary-soft);
  aspect-ratio:4/3;
}
.scene-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 流程步骤 ---------- */
.step-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:26px;
}
.step-card{
  background:var(--c-bg);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  padding:20px 18px;
  transition:all 240ms ease;
}
.step-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-hover);
  border-color:var(--c-primary-soft);
}
.step-card .step-n{
  font-size:22px;
  font-weight:650;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  margin-bottom:10px;
  display:block;
}
.step-card h3{font-size:16px;margin-bottom:6px}
.step-card p{font-size:14px;line-height:1.75;color:var(--c-text-muted);margin:0}

/* ---------- FAQ ---------- */
.faq-list{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-left:3px solid transparent;
  border-radius:var(--r-card);
  transition:all 200ms ease;
}
.faq-item[open]{
  border-left-color:var(--c-primary);
  box-shadow:var(--sh-sm);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:16px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";
  width:9px;
  height:9px;
  border-right:2px solid var(--c-text-muted);
  border-bottom:2px solid var(--c-text-muted);
  transform:rotate(45deg);
  transition:transform 200ms ease;
  flex:0 0 9px;
  margin-top:-4px;
}
.faq-item[open] summary::after{
  transform:rotate(-135deg);
  border-color:var(--c-primary);
  margin-top:4px;
}
.faq-body{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-body);
  border-top:1px solid var(--c-border);
  padding-top:16px;
  margin:0 20px 20px;
  padding-left:0;
  padding-right:0;
}

/* ---------- CTA ---------- */
.cta-bar{
  background:var(--c-primary);
  border-radius:var(--r-lg);
  padding:40px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  box-shadow:var(--sh-md);
  margin-top:32px;
  position:relative;
  overflow:hidden;
}
.cta-bar::after{
  content:"";
  position:absolute;
  right:-40px;
  top:-40px;
  width:180px;
  height:180px;
  border-radius:50%;
  background:rgba(255,255,255,.06);
}
.cta-bar h2{
  color:#fff;
  font-size:26px;
  line-height:1.4;
  margin-bottom:8px;
}
.cta-bar p{
  color:rgba(255,255,255,.86);
  font-size:15px;
  margin:0;
  max-width:560px;
}
.cta-bar .btn-x{flex:0 0 auto;position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#16232F;
  color:#B7C4D1;
  margin-top:80px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.10);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-tag{color:#8DA0B1}
.footer-brand .brand-divider{background:rgba(255,255,255,.18)}
.site-footer p{
  font-size:14px;
  line-height:2;
  color:#B7C4D1;
  margin:0;
}
.footer-title{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-links li{margin-bottom:10px}
.footer-links a{
  font-size:14px;
  color:#B7C4D1;
  line-height:2;
}
.footer-links a:hover{color:#fff}
.footer-contact li{
  font-size:14px;
  line-height:2;
  color:#B7C4D1;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 0 26px;
  font-size:13px;
  color:#8DA0B1;
  flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .cat-main{padding-top:56px}
  .cat-layout{gap:32px}
  .section-block{padding:32px}
  .scene-grid{gap:24px}
}
@media (max-width:991px){
  :root{--nav-h:72px}
  .nav-list,.nav-actions{display:none}
  .nav-toggle{display:flex}
  .cat-hero{padding:32px 0 36px}
  .cat-hero-grid{grid-template-columns:1fr;gap:28px}
  .cat-hero-media{aspect-ratio:16/9}
  .cat-layout{grid-template-columns:1fr;gap:0}
  .anchor-nav{
    position:sticky;
    top:72px;
    display:flex;
    gap:8px;
    overflow-x:auto;
    padding:10px;
    border-radius:var(--r-card);
    margin-bottom:24px;
    scrollbar-width:none;
  }
  .anchor-nav::-webkit-scrollbar{display:none}
  .anchor-title{display:none}
  .anchor-link{
    flex:0 0 auto;
    white-space:nowrap;
    border-left:0;
    border-bottom:3px solid transparent;
    border-radius:8px;
    padding:8px 14px;
  }
  .anchor-link.active{
    border-left:0;
    border-bottom-color:var(--c-primary);
  }
  .cat-content{max-width:100%}
  .scene-grid{grid-template-columns:1fr}
  .scene-media{aspect-ratio:16/9}
  .step-row{grid-template-columns:repeat(2,1fr)}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .section-block{padding:24px;border-radius:var(--r-card)}
  .section-block h2{font-size:24px}
  .section-block h3{font-size:19px}
  .cat-hero h1{font-size:29px}
  .cat-sub{font-size:16px}
  .cta-bar h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:56px;padding-top:48px}
}
@media (max-width:575px){
  .container-x{padding-left:16px;padding-right:16px}
  .cat-main{padding-top:40px}
  .section-block{padding:20px;box-shadow:var(--sh-sm)}
  .step-row{grid-template-columns:1fr}
  .timeline{padding-left:26px}
  .cta-bar{padding:26px 20px}
  .btn-x{width:100%}
  .cta-bar .btn-x{width:100%}
  .brand-tag{display:none}
  .brand-divider{display:none}
}

/* roulang page: category2 */
:root{
  --c-primary:#2A6BB0;
  --c-primary-dark:#1E548C;
  --c-primary-soft:#EAF1F9;
  --c-accent:#E2854B;
  --c-accent-soft:#FDF1E7;
  --c-secondary:#557A88;
  --c-bg:#F6F8FB;
  --c-surface:#FFFFFF;
  --c-border:#E3E9F0;
  --c-border-strong:#C9D6E3;
  --c-text:#16232F;
  --c-text-body:#40505F;
  --c-text-muted:#7A8A99;
  --r-card:12px;
  --r-lg:16px;
  --r-btn:8px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(22,35,47,.04),0 2px 8px rgba(22,35,47,.04);
  --sh-md:0 6px 20px rgba(22,35,47,.06);
  --sh-hover:0 12px 28px rgba(22,35,47,.10);
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --bs-primary:#2A6BB0;
  --bs-primary-rgb:42,107,176;
  --bs-body-font-family:var(--font);
  --bs-body-color:#40505F;
  --bs-border-color:#E3E9F0;
  --bs-border-radius:12px;
  --bs-link-color:#2A6BB0;
  --bs-link-hover-color:#1E548C;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text-body);
  background:var(--c-bg);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-dark)}
h1,h2,h3,h4,h5{margin:0;color:var(--c-text);font-weight:650;line-height:1.35}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-sm)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text)}
.brand-mark{
  width:24px;height:24px;border-radius:6px;background:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-name{font-size:17px;font-weight:600;color:var(--c-text);letter-spacing:0}
.brand-divider{width:1px;height:14px;background:var(--c-border-strong);display:inline-block}
.brand-tag{font-size:12px;color:var(--c-text-muted)}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-list a{
  position:relative;display:inline-flex;align-items:center;
  font-size:15px;font-weight:500;color:var(--c-text-body);
  padding:8px 2px;transition:color .18s ease;
}
.nav-list a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;
  border-radius:2px;background:var(--c-primary);transform:translateX(-50%);
  transition:width .18s ease;
}
.nav-list a:hover{color:var(--c-primary)}
.nav-list a:hover::after{width:60%}
.nav-list a.active{
  color:var(--c-primary);background:var(--c-primary-soft);
  border-radius:var(--r-pill);padding:8px 14px;font-weight:600;
}
.nav-list a.active::after{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:0;border-radius:8px;color:var(--c-text);
}
.nav-toggle:hover{background:var(--c-primary-soft)}

/* ---------- Buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-x.primary{background:var(--c-primary);color:#fff}
.btn-x.primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-x.ghost{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary)}
.btn-x.ghost:hover{background:var(--c-primary-soft);transform:translateY(-1px)}
.btn-x.on-dark{background:#fff;color:var(--c-primary)}
.btn-x.on-dark:hover{background:var(--c-primary-soft);transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-x:active{transform:translateY(0)}

/* ---------- Badges / eyebrow ---------- */
.badge-x{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-primary-soft);color:var(--c-primary);
  border-radius:var(--r-pill);padding:4px 10px;font-size:12px;font-weight:600;
}
.badge-x.secondary{background:#EDF3F5;color:var(--c-secondary)}

/* ---------- Page hero ---------- */
.page-hero{background:var(--c-surface);border-bottom:1px solid var(--c-border);padding:48px 0 64px}
.crumb{font-size:13px;color:var(--c-text-muted);margin-bottom:18px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:var(--c-text-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:var(--c-border-strong)}
.crumb .current{color:var(--c-text-muted)}
.page-hero-grid{display:grid;grid-template-columns:1fr 420px;gap:56px;align-items:center}
.page-hero h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:650;margin-bottom:18px}
.page-hero .lede{font-size:17px;line-height:1.85;color:var(--c-text-body);max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-figure{
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-md);
  background:var(--c-primary-soft);aspect-ratio:4/3;position:relative;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;right:0;bottom:0;width:96px;height:96px;
  background:var(--c-primary);opacity:.16;
  clip-path:polygon(100% 0,100% 100%,0 100%);
}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section.tight{padding-top:72px}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:clamp(26px,3vw,32px);line-height:1.35;margin-bottom:14px}
.section-head p{color:var(--c-text-body);font-size:16px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- Steps strip ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding-top:4px}
.steps::before{
  content:"";position:absolute;left:22px;right:calc(25% - 22px);top:25px;height:2px;
  background:var(--c-border-strong);
}
.step{position:relative;padding-right:28px}
.step-num{
  position:relative;z-index:1;width:44px;height:44px;border-radius:var(--r-pill);
  background:var(--c-surface);border:2px solid var(--c-primary);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:650;font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;line-height:1.8;color:var(--c-text-muted);margin:0}

/* ---------- Stats band ---------- */
.stats-band{
  background-color:var(--c-text);
  background-image:linear-gradient(rgba(22,35,47,.93),rgba(22,35,47,.93)),url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
  padding:64px 0;color:#C6D4E0;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat{border-left:1px solid rgba(255,255,255,.14);padding-left:24px}
.stat:first-child{border-left:0;padding-left:0}
.stat .num{
  font-size:38px;font-weight:650;line-height:1.15;color:var(--c-accent);
  font-variant-numeric:tabular-nums;letter-spacing:0;
}
.stat .num span{font-size:15px;font-weight:600;color:#C6D4E0;margin-left:4px}
.stat .cap{font-size:13px;line-height:1.7;color:#93A6B5;margin-top:10px}

/* ---------- Split (alternating) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center;margin-bottom:88px}
.split:last-child{margin-bottom:0}
.split.reverse .split-media{order:2}
.split-media{border-radius:var(--r-card);overflow:hidden;background:var(--c-primary-soft);box-shadow:var(--sh-md);aspect-ratio:4/3}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out}
.split-media:hover img{transform:scale(1.03)}
.split-body .step-tag{
  font-size:14px;font-weight:650;color:var(--c-accent);
  font-variant-numeric:tabular-nums;margin-bottom:12px;display:block;
}
.split-body h2{font-size:clamp(22px,2.4vw,28px);line-height:1.4;margin-bottom:16px}
.split-body p{font-size:16px;line-height:1.85;margin-bottom:18px}
.mark-list li{
  position:relative;padding-left:20px;font-size:15px;line-height:1.85;
  color:var(--c-text-body);margin-bottom:8px;
}
.mark-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;
  border-radius:2px;background:var(--c-primary);
}

/* ---------- Facts ---------- */
.facts{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:12px 32px;box-shadow:var(--sh-sm)}
.fact{display:grid;grid-template-columns:132px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--c-border);align-items:start}
.fact-label{font-size:13px;color:var(--c-secondary);letter-spacing:.02em;line-height:1.9}
.fact-val{font-size:15px;line-height:1.8;color:var(--c-text-body)}
.facts .fact:nth-last-child(-n+2){border-bottom:0}

/* ---------- FAQ two columns ---------- */
.qa-list{border-top:1px solid var(--c-border)}
.qa-row{
  display:grid;grid-template-columns:320px 1fr;gap:40px;
  padding:26px 0;border-bottom:1px solid var(--c-border);
}
.qa-q{font-size:16px;font-weight:600;color:var(--c-text);line-height:1.7;position:relative;padding-left:16px}
.qa-q::before{
  content:"";position:absolute;left:0;top:9px;width:3px;height:18px;
  border-radius:2px;background:var(--c-primary);
}
.qa-a{font-size:15px;line-height:1.85;color:var(--c-text-body)}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--c-primary);border-radius:var(--r-lg);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;color:#fff;box-shadow:var(--sh-md);
}
.cta-band h2{color:#fff;font-size:24px;line-height:1.4;margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;margin:0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- Footer ---------- */
.site-footer{background:#16232F;color:#9FB0BE;padding:72px 0 28px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-divider{background:rgba(255,255,255,.2)}
.footer-brand .brand-tag{color:#8A9AA9}
.site-footer p{font-size:14px;line-height:1.9;color:#9FB0BE}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#9FB0BE;font-size:14px}
.footer-links a:hover{color:#fff}
.footer-contact li{font-size:14px;line-height:2;color:#9FB0BE}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#7A8A99;
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .section{padding:80px 0}
  .page-hero-grid{grid-template-columns:1fr 360px;gap:40px}
  .split{gap:56px;margin-bottom:72px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .nav-toggle{display:inline-flex}
  .nav-wrap{height:60px}
  .nav-list{
    position:absolute;top:60px;left:0;right:0;display:none;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--c-surface);border-bottom:1px solid var(--c-border);
    box-shadow:var(--sh-md);padding:6px 0;max-height:calc(100vh - 60px);overflow-y:auto;
  }
  .nav-list.open{display:flex}
  .nav-list a{
    min-height:44px;padding:12px 20px;font-size:15px;
    border-bottom:1px solid var(--c-border);border-radius:0;justify-content:flex-start;
  }
  .nav-list a::after{display:none}
  .nav-list a.active{
    background:var(--c-primary-soft);border-left:3px solid var(--c-primary);
    padding-left:17px;border-radius:0;
  }
  .page-hero{padding:36px 0 48px}
  .page-hero-grid{grid-template-columns:1fr;gap:32px}
  .page-hero .lede{font-size:16px}
  .steps{grid-template-columns:1fr 1fr;gap:28px 24px}
  .steps::before{display:none}
  .step{padding-right:0}
  .stats-grid{grid-template-columns:1fr 1fr;gap:28px}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .split{grid-template-columns:1fr;gap:32px;margin-bottom:56px}
  .split.reverse .split-media{order:0}
  .facts{grid-template-columns:1fr;padding:8px 24px}
  .facts .fact:nth-last-child(-n+2){border-bottom:1px solid var(--c-border)}
  .facts .fact:last-child{border-bottom:0}
  .qa-row{grid-template-columns:1fr;gap:12px;padding:22px 0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{margin-top:64px}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .container-x{padding:0 16px}
  .brand-tag,.brand-divider{display:none}
  .btn-x{width:100%;padding:0 18px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .cta-actions{width:100%;flex-direction:column}
  .steps{grid-template-columns:1fr}
  .stat{padding-left:18px}
  .stat .num{font-size:32px}
  .facts{padding:4px 18px}
  .fact{grid-template-columns:1fr;gap:6px;padding:16px 0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:575px){
  .page-hero h1{font-size:28px}
  .hero-figure{aspect-ratio:16/10}
  .split-media{aspect-ratio:16/10;box-shadow:var(--sh-sm)}
}