/* roulang page: index */
:root{
  --ink:#1E3A3C;
  --ink-deep:#14272A;
  --orange:#D9782E;
  --orange-dark:#C2661F;
  --mist:#7C9492;
  --paper:#F6F3EC;
  --paper-2:#EEF2F0;
  --white:#FFFFFF;
  --line:#E4DED2;
  --line-2:#D9E0DE;
  --t1:#1B2422;
  --t2:#55605E;
  --t3:#8A9491;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:system-ui,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  --r-lg:14px;
  --r-sm:10px;
  --r-xl:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,39,42,.05);
  --sh-2:0 10px 26px rgba(20,39,42,.10);
  --maxw:1240px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:68px;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--t1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--orange)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px}
::selection{background:rgba(217,120,46,.22)}

/* Foundation 覆盖 */
.accordion{background:transparent;border:0;margin:0}
.accordion-title{border:0;padding:0}
.accordion-content{border:0;padding:0;background:transparent}
.orbit-bullets button{background-color:var(--line-2);width:9px;height:9px}
.orbit-bullets button:hover{background-color:var(--mist)}
.orbit-bullets button.is-active{background-color:var(--orange)}
.orbit-previous,.orbit-next{color:var(--ink)}
.orbit-previous:hover,.orbit-next:hover{background:rgba(217,120,46,.10)}
[type=text],[type=email],[type=tel],textarea{box-shadow:none;border-radius:var(--r-sm)}
.reveal{outline:0}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 30px}
.grid-x.grid-margin-x{margin-left:-10px;margin-right:-10px}
.grid-x.grid-margin-x>.cell{padding-left:10px;padding-right:10px}

/* 通用组件 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px rgba(217,120,46,.22)}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(217,120,46,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(217,120,46,.20)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:rgba(30,58,60,.08);color:var(--ink);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:#fff;color:var(--orange-dark);transform:translateY(-1px)}
.btn-outline-light{border-color:rgba(255,255,255,.62);color:#fff}
.btn-outline-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.10);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}

.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(30,58,60,.07);color:var(--ink);
  font-size:13px;font-weight:600;line-height:1.6;
}
.badge-dot{width:6px;height:6px;border-radius:50%;background:var(--orange);display:inline-block}

.pill{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(217,120,46,.12);color:var(--orange-dark);
  font-size:12.5px;font-weight:600;line-height:1.7;
}

.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

.section{padding:var(--sec) 0}
.section-tight{padding:72px 0}
.bg-soft{background:var(--paper-2)}
.section-head{max-width:680px;margin-bottom:24px}
.section-head h2{
  font-family:var(--font-serif);
  font-size:clamp(24px,2.4vw,30px);
  line-height:1.35;font-weight:700;color:var(--ink);
}
.section-head p{margin-top:16px;color:var(--t2);font-size:16px}
.eyebrow{font-size:13px;font-weight:700;color:var(--orange-dark);letter-spacing:.02em;margin-bottom:12px;display:block}

/* 顶部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;height:68px;z-index:120;
  background:var(--paper);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 4px 18px rgba(20,39,42,.07)}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-family:var(--font-serif);font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.brand-text span{font-size:11px;color:var(--t3);letter-spacing:.06em}
.site-nav{display:flex;align-items:center;gap:30px}
.nav-link{
  position:relative;font-size:15px;color:var(--t2);padding:6px 2px;font-weight:500;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;height:3px;width:0;
  background:var(--orange);border-radius:2px;transform:translateX(-50%);
  transition:width .25s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:100%;height:2px}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{width:20px;height:3px}
.header-cta{display:inline-flex}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--line-2);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:background .2s}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform .25s ease,top .25s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.drawer-open .nav-toggle span{background:transparent}
body.drawer-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
body.drawer-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;top:68px;left:0;right:0;z-index:110;
  background:var(--paper);border-bottom:1px solid var(--line);
  box-shadow:0 14px 30px rgba(20,39,42,.10);
  padding:8px 0 18px;
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
body.drawer-open .nav-drawer{transform:translateY(0);opacity:1;visibility:visible}
.nav-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 26px;font-size:16px;color:var(--t2);border-bottom:1px solid var(--line);
}
.nav-drawer a:last-child{border-bottom:0}
.nav-drawer a.is-active{color:var(--ink);font-weight:700;border-left:3px solid var(--orange);padding-left:23px}
.nav-drawer a::after{content:"→";color:var(--mist);font-size:14px}

/* HERO */
.hero{
  position:relative;
  padding:64px 0 84px;
  background:linear-gradient(180deg,var(--paper) 0%,var(--paper-2) 100%);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:auto -120px -160px auto;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,148,146,.18),rgba(124,148,146,0) 68%);
}
.hero-grid{position:relative;z-index:2}
.hero-copy{padding-top:6px}
.hero-copy h1{
  font-family:var(--font-serif);
  font-size:clamp(28px,3.2vw,42px);
  line-height:1.25;font-weight:700;color:var(--ink);
  margin:18px 0 0;
  max-width:13em;
}
.hero-sub{margin-top:18px;font-size:17px;color:var(--t2);max-width:32em;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:36px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.hero-metrics li{min-width:96px}
.hero-metrics b{
  display:block;font-size:26px;font-weight:800;color:var(--ink);line-height:1.3;
  font-family:var(--font-sans);letter-spacing:.01em;
}
.hero-metrics span{font-size:13px;color:var(--t3)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-xl);
  box-shadow:0 18px 40px rgba(20,39,42,.12);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-xl);
  background:linear-gradient(180deg,rgba(124,148,146,.16),rgba(30,58,60,.10));
  pointer-events:none;
}
.hero-visual figcaption{
  position:absolute;left:18px;bottom:18px;z-index:3;
  background:rgba(255,255,255,.94);border-radius:var(--r-sm);
  padding:10px 14px;font-size:13px;color:var(--t2);line-height:1.6;
  box-shadow:var(--sh-1);max-width:78%;
}

/* 方案卡 */
.plan-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(30,58,60,.20)}
.plan-card figure{margin:0;overflow:hidden}
.plan-card figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.plan-card:hover figure img{transform:scale(1.03)}
.plan-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.plan-body h3{font-size:19px;line-height:1.4;font-weight:700;color:var(--ink)}
.plan-body p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--t2)}
.plan-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.plan-price{font-size:13px;color:var(--t3)}
.plan-price b{display:block;font-size:17px;color:var(--orange-dark);font-weight:800;letter-spacing:.01em}
.link-more{
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1.5px solid transparent;padding-bottom:2px;
  transition:border-color .22s ease,color .22s ease;
}
.link-more::after{content:" →";transition:margin-left .22s ease}
.link-more:hover{color:var(--orange-dark);border-bottom-color:var(--orange)}
.link-more:hover::after{margin-left:4px}

/* 评价轮播 */
.testimonial-orbit{margin-top:8px}
.testimonial-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:30px 32px;max-width:760px;margin:0 auto;
}
.t-top{display:flex;align-items:center;gap:14px}
.t-avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(135deg,var(--ink),var(--mist));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;font-weight:700;
}
.t-name{font-size:15px;font-weight:700;color:var(--ink);line-height:1.5}
.t-role{font-size:13px;color:var(--t3);line-height:1.6}
.t-stars{display:flex;gap:3px;margin-left:auto}
.t-quote{margin-top:20px;font-size:16px;line-height:1.9;color:var(--t2)}
.orbit-container{background:transparent}
.orbit-slide{background:transparent}
.orbit-previous,.orbit-next{padding:12px 6px;font-size:20px}
.orbit-bullets{margin-top:22px}

/* 保障条 */
.assure-strip{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:26px 10px;
}
.assure-item{
  display:flex;align-items:center;gap:12px;justify-content:center;
  position:relative;font-size:14px;color:var(--t2);
}
.assure-item svg{width:28px;height:28px;flex:0 0 auto;stroke:var(--orange)}
.assure-item+.assure-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:32px;background:var(--line);
}

/* 资讯列表 */
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:22px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(217,120,46,.35)}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--t3)}
.news-card h3{margin-top:14px;font-size:18px;line-height:1.5;font-weight:700;color:var(--ink)}
.news-card h3 a:hover{color:var(--orange-dark)}
.news-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--t2)}
.news-card .link-more{margin-top:auto;padding-top:16px;align-self:flex-start}
.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;background:var(--white);border:1px dashed var(--line-2);border-radius:var(--r-lg);
  color:var(--t2);font-size:15px;
}
.empty-state svg{width:34px;height:34px;stroke:var(--mist)}

/* FAQ */
.faq-wrap{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:6px 26px}
.faq-wrap .accordion-item{border-bottom:1px solid var(--line)}
.faq-wrap .accordion-item:last-child{border-bottom:0}
.faq-wrap .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:18px 0;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-wrap .accordion-title:hover{color:var(--orange-dark)}
.faq-wrap .accordion-title::before{display:none}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--orange);border-radius:2px;transition:transform .25s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.is-active>.accordion-title .faq-icon::after{transform:rotate(90deg)}
.faq-wrap .accordion-content{padding-bottom:20px}
.faq-wrap .accordion-content p{font-size:15px;color:var(--t2);line-height:1.9}

/* CTA 带 */
.cta-band{
  position:relative;background:var(--ink-deep);color:#fff;overflow:hidden;
  border-radius:0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.20;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(20,39,42,.94) 0%,rgba(30,58,60,.86) 60%,rgba(30,58,60,.72) 100%);
}
.cta-band .container{position:relative;z-index:3}
.cta-band h2{font-family:var(--font-serif);font-size:clamp(24px,2.4vw,30px);line-height:1.4;color:#fff;font-weight:700}
.cta-band p{margin-top:16px;color:rgba(255,255,255,.80);font-size:16px;line-height:1.9;max-width:34em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-form{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-lg);padding:26px;
}
.cta-form .field{margin-bottom:16px}
.cta-form label{display:block;font-size:14px;color:rgba(255,255,255,.82);margin-bottom:8px}
.cta-form input,.cta-form textarea{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.10);color:#fff;
  font-size:15px;line-height:1.5;transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form textarea{height:96px;padding:12px 14px;resize:vertical}
.cta-form input::placeholder,.cta-form textarea::placeholder{color:rgba(255,255,255,.48)}
.cta-form input:focus,.cta-form textarea:focus{
  outline:0;border-color:var(--orange);box-shadow:0 0 0 4px rgba(217,120,46,.24);
}
.form-hint{font-size:13px;color:rgba(255,255,255,.62);margin-top:12px;line-height:1.7}
.cta-form .btn{width:100%}

/* 页脚 */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.80);padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.10)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{font-family:var(--font-serif);font-size:18px;color:#fff}
.footer-about{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.72);max-width:34em}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;font-family:var(--font-sans)}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.74)}
.footer-col a:hover{color:var(--orange)}
.footer-contact{font-size:14.5px;line-height:2;color:rgba(255,255,255,.74)}
.footer-contact b{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.58);
}
.footer-bottom a{color:rgba(255,255,255,.58)}
.footer-bottom a:hover{color:var(--orange)}

/* 移动底部 Tab */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:130;display:none;
  height:calc(58px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(246,243,236,.97);
  border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(20,39,42,.07);
}
.mobile-tabbar ul{display:flex;height:58px}
.mobile-tabbar li{flex:1}
.mobile-tabbar a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:100%;font-size:11.5px;color:var(--mist);line-height:1.2;
}
.mobile-tabbar svg{width:24px;height:24px;stroke:currentColor}
.mobile-tabbar a.is-active{color:var(--orange);font-weight:700}

/* 响应式 */
@media (max-width:1023px){
  :root{--sec:72px}
  .hero{padding:44px 0 64px}
  .hero-metrics{gap:26px}
  .hero-visual{margin-top:34px}
  .hero-visual img{aspect-ratio:16/9}
  .assure-strip{padding:20px 4px}
  .assure-item{font-size:13px;gap:9px}
}
@media (max-width:767px){
  :root{--sec:56px}
  body{padding-bottom:72px}
  .container{padding:0 26px}
  .site-nav,.header-cta{display:none}
  .nav-toggle{display:flex}
  .mobile-tabbar{display:block}
  .hero-copy h1{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-metrics{gap:20px;margin-top:30px}
  .hero-metrics b{font-size:22px}
  .hero-visual{margin-top:26px}
  .hero-visual figcaption{left:12px;bottom:12px;font-size:12px;padding:8px 12px}
  .section-head h2{font-size:24px}
  .testimonial-card{padding:24px 20px}
  .t-quote{font-size:15px}
  .cta-form{margin-top:28px;padding:22px 20px}
  .footer-bottom{flex-direction:column;gap:8px}
  .footer-col{margin-bottom:26px}
  .faq-wrap{padding:4px 18px}
}
@media (max-width:520px){
  .container{padding:0 22px}
  .hero-actions .btn{width:100%}
  .plan-body{padding:18px}
  .assure-item+.assure-item::before{display:none}
  .assure-item{justify-content:flex-start;padding:10px 8px}
}

/* roulang page: article */
:root{
  --ink:#1E3A3C;
  --ink-deep:#14272A;
  --accent:#D9782E;
  --accent-dark:#C2661F;
  --mist:#7C9492;
  --paper:#F6F3EC;
  --panel:#EEF2F0;
  --white:#FFFFFF;
  --line:#E4DED2;
  --line-2:#D9E0DE;
  --t1:#1B2422;
  --t2:#55605E;
  --t3:#8A9491;
  --r-lg:18px;
  --r:14px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(20,39,42,.05);
  --sh-2:0 10px 26px rgba(20,39,42,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:system-ui,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  color:var(--t1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--t1);}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(217,120,46,.22);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,243,236,.94);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease, box-shadow .25s ease, background .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 2px 14px rgba(20,39,42,.06);background:rgba(255,255,255,.96);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:34px;height:34px;flex:0 0 34px;}
.brand-name{font-family:var(--serif);font-size:20px;font-weight:700;color:var(--ink);}
.site-nav{display:flex;align-items:center;gap:6px;}
.nav-link{position:relative;padding:8px 12px;font-size:15px;color:var(--t2);font-weight:500;white-space:nowrap;}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;
  background:var(--accent);border-radius:2px;transition:left .24s ease,right .24s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{left:12px;right:12px;}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{left:12px;right:12px;height:3px;}
.header-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:var(--white);cursor:pointer;
  align-items:center;justify-content:center;transition:border-color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:var(--ink);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1.5px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .16s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(217,120,46,.22);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(217,120,46,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(217,120,46,.22);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:rgba(30,58,60,.08);color:var(--ink);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:#F1EDE3;color:var(--ink);transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent);
  border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease;
}
.text-link:hover{color:var(--accent-dark);border-bottom-color:var(--accent-dark);}

/* ---------- 内页 Hero ---------- */
.article-hero{
  position:relative;
  padding:52px 0 40px;
  background:
    linear-gradient(180deg, rgba(238,242,240,.94) 0%, rgba(246,243,236,.98) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--t3);margin-bottom:20px;}
.breadcrumb a{color:var(--t3);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--line-2);}
.breadcrumb .current{color:var(--t2);font-weight:600;}
.hero-label{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(217,120,46,.12);color:var(--accent-dark);margin-bottom:16px;
}
.hero-label .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.article-title{
  font-family:var(--serif);
  font-size:40px;line-height:1.3;font-weight:700;color:var(--ink);
  max-width:880px;min-height:104px;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:22px;font-size:14px;color:var(--t3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .meta-item svg{width:16px;height:16px;stroke:var(--mist);fill:none;stroke-width:1.6;}
.meta-tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  font-size:13px;font-weight:600;background:rgba(217,120,46,.12);color:var(--accent-dark);
}

/* ---------- 文章布局 ---------- */
.article-layout{padding:56px 0 96px;}
.article-main{max-width:760px;}
.article-figure{margin:0 0 32px;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--sh-1);}
.article-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-figure figcaption{padding:12px 18px;font-size:13px;color:var(--t3);border-top:1px solid var(--line);}

.entry-content{font-size:17px;line-height:1.9;color:var(--t1);}
.entry-content>*:first-child{margin-top:0;}
.entry-content p{margin:0 0 1.25em;}
.entry-content h2{
  font-family:var(--serif);font-size:27px;line-height:1.35;color:var(--ink);
  margin:2.2em 0 .7em;padding-left:14px;border-left:4px solid var(--accent);
}
.entry-content h3{font-size:19px;line-height:1.45;color:var(--ink);margin:1.8em 0 .55em;}
.entry-content h4{font-size:17px;color:var(--ink);margin:1.5em 0 .5em;}
.entry-content ul,.entry-content ol{margin:0 0 1.25em;padding-left:1.35em;}
.entry-content ul li{list-style:disc;margin-bottom:.5em;}
.entry-content ol li{list-style:decimal;margin-bottom:.5em;}
.entry-content blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:#FAF7F0;border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--t2);font-size:16px;
}
.entry-content blockquote p:last-child{margin-bottom:0;}
.entry-content img{border-radius:var(--r-sm);margin:1.4em 0;width:100%;}
.entry-content figure{margin:1.6em 0;}
.entry-content figure figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:8px;}
.entry-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;background:#fff;}
.entry-content th,.entry-content td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.entry-content th{background:var(--panel);font-weight:600;color:var(--ink);}
.entry-content pre{
  background:var(--ink-deep);color:#E6EEEC;padding:18px 20px;border-radius:var(--r-sm);
  overflow-x:auto;font-size:14px;line-height:1.7;margin:1.5em 0;
}
.entry-content code{background:rgba(30,58,60,.07);padding:2px 6px;border-radius:5px;font-size:.92em;}
.entry-content pre code{background:none;padding:0;color:inherit;}
.entry-content a{color:var(--accent-dark);border-bottom:1px solid rgba(217,120,46,.35);}
.entry-content a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.entry-content hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:180px;padding:32px 24px;text-align:center;
  background:#fff;border:1px dashed var(--line-2);border-radius:var(--r);
}
.empty-state svg{width:38px;height:38px;stroke:var(--mist);fill:none;stroke-width:1.5;}
.empty-state p{font-size:15px;color:var(--t2);}
.empty-state .btn{margin-top:4px;}

/* ---------- 文末区块 ---------- */
.article-foot{margin-top:52px;padding-top:32px;border-top:1px solid var(--line);}
.article-foot .foot-actions{display:flex;flex-wrap:wrap;gap:12px;}
.related-block{margin-top:44px;}
.block-head{display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.block-head h2{font-family:var(--serif);font-size:24px;color:var(--ink);line-height:1.35;}
.block-head .line{flex:1;height:1px;background:var(--line);}
.mini-card{
  display:flex;gap:14px;padding:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r);box-shadow:var(--sh-1);height:100%;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(30,58,60,.2);}
.mini-card .thumb{width:96px;height:72px;flex:0 0 96px;border-radius:var(--r-sm);overflow:hidden;background:var(--panel);}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;}
.mini-card .body{min-width:0;}
.mini-card h3{
  font-size:16px;line-height:1.45;font-weight:600;color:var(--t1);margin-bottom:6px;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.mini-card p{font-size:13px;color:var(--t3);}
.mini-card:hover h3{color:var(--accent-dark);}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:22px;box-shadow:var(--sh-1);
}
.side-title{
  font-family:var(--serif);font-size:18px;color:var(--ink);
  margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.side-nav li+li{margin-top:2px;}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:var(--r-sm);font-size:15px;color:var(--t2);
  transition:background .2s ease,color .2s ease,padding-left .2s ease;
}
.side-nav a:hover{background:var(--panel);color:var(--ink);padding-left:16px;}
.side-nav a svg{width:14px;height:14px;stroke:var(--mist);fill:none;stroke-width:2;}
.side-posts li+li{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);}
.side-posts a{display:flex;gap:12px;align-items:flex-start;}
.side-posts .thumb{width:70px;height:54px;flex:0 0 70px;border-radius:8px;overflow:hidden;background:var(--panel);}
.side-posts .thumb img{width:100%;height:100%;object-fit:cover;}
.side-posts strong{display:block;font-size:14px;font-weight:600;line-height:1.5;color:var(--t1);
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.side-posts a:hover strong{color:var(--accent-dark);}
.side-posts span{display:block;font-size:12px;color:var(--t3);margin-top:4px;}
.side-card--cta{background:var(--ink);border-color:var(--ink);color:rgba(255,255,255,.82);}
.side-card--cta .side-title{color:#fff;border-bottom-color:rgba(255,255,255,.16);}
.side-card--cta p{font-size:14px;line-height:1.8;margin-bottom:16px;color:rgba(255,255,255,.72);}

/* ---------- 文末 CTA ---------- */
.cta-band{
  position:relative;padding:72px 0;overflow:hidden;
  background:linear-gradient(135deg,var(--ink-deep) 0%,var(--ink) 100%);
  color:#fff;
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.16;pointer-events:none;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.cta-band .container{position:relative;z-index:2;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;}
.cta-copy{max-width:620px;}
.cta-copy h2{font-family:var(--serif);font-size:30px;line-height:1.35;color:#fff;margin-bottom:12px;}
.cta-copy p{font-size:16px;line-height:1.85;color:rgba(255,255,255,.74);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- FAQ ---------- */
.faq-block{padding:88px 0;background:var(--panel);}
.faq-head{max-width:640px;margin-bottom:32px;}
.faq-head h2{font-family:var(--serif);font-size:30px;line-height:1.35;color:var(--ink);margin-bottom:12px;}
.faq-head p{font-size:15px;color:var(--t2);line-height:1.85;}
.custom-accordion{border:0;background:transparent;}
.custom-accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--r);background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.custom-accordion .accordion-title{
  border:0;background:transparent;padding:19px 52px 19px 22px;position:relative;
  font-size:16px;font-weight:600;color:var(--t1);line-height:1.5;
}
.custom-accordion .accordion-title::before{display:none;}
.custom-accordion .accordion-title::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--accent);line-height:1;
}
.custom-accordion .accordion-item.is-active{border-color:rgba(30,58,60,.22);}
.custom-accordion .accordion-item.is-active .accordion-title{color:var(--ink);}
.custom-accordion .accordion-item.is-active .accordion-title::after{content:"−";}
.custom-accordion .accordion-content{
  border:0;background:#FAF8F3;padding:4px 22px 20px;font-size:15px;
  line-height:1.85;color:var(--t2);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-deep);color:rgba(255,255,255,.8);
  padding:64px 0 26px;font-size:14px;line-height:1.85;
}
.site-footer h4{
  font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:0;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-family:var(--serif);font-size:19px;color:#fff;}
.footer-about{color:rgba(255,255,255,.68);max-width:460px;}
.footer-col ul li+li{margin-top:10px;}
.footer-col a{color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--accent);}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:46px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.56);
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:rgba(255,255,255,.98);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -2px 14px rgba(20,39,42,.06);
}
.mobile-tab a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:58px;font-size:11px;color:var(--mist);font-weight:500;
}
.mobile-tab a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.mobile-tab a.is-active{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-title{font-size:34px;min-height:0;}
}
@media (max-width:1023px){
  .section,.faq-block{padding:72px 0;}
  .article-layout{padding:40px 0 72px;}
  .article-side{margin-top:36px;}
  .cta-copy h2{font-size:26px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .site-nav{
    position:fixed;top:68px;left:0;right:0;z-index:85;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:10px 16px 18px;
    box-shadow:0 12px 26px rgba(20,39,42,.1);
    transform:translateY(-10px);opacity:0;visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
  }
  .site-nav.is-open{transform:none;opacity:1;visibility:visible;}
  .nav-link{padding:13px 8px;border-bottom:1px solid var(--line);}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--accent);}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn{display:none;}
  .mobile-tab{display:grid;grid-template-columns:repeat(4,1fr);}
  body{padding-bottom:72px;}
  .article-hero{padding:32px 0 28px;}
  .article-title{font-size:27px;line-height:1.35;}
  .article-meta{gap:8px 16px;font-size:13px;}
  .entry-content{font-size:16px;line-height:1.9;}
  .entry-content h2{font-size:22px;}
  .entry-content h3{font-size:18px;}
  .cta-band{padding:52px 0;}
  .cta-copy h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .site-footer{padding:48px 0 22px;}
  .footer-about{margin-bottom:8px;}
  .footer-col{margin-top:26px;}
  .footer-bottom{margin-top:32px;flex-direction:column;align-items:flex-start;}
  .mini-card .thumb{width:82px;height:64px;flex:0 0 82px;}
}
@media (max-width:519px){
  .article-title{font-size:24px;}
  .faq-head h2{font-size:23px;}
  .block-head h2{font-size:20px;}
}

/* roulang page: category1 */
:root{
  --ink:#1E3A3C;
  --ink-deep:#14272A;
  --orange:#D9782E;
  --orange-dark:#C2661F;
  --cloud:#7C9492;
  --paper:#F6F3EC;
  --mist:#EEF2F0;
  --card:#FFFFFF;
  --line:#E4DED2;
  --line-2:#D9E0DE;
  --t1:#1B2422;
  --t2:#55605E;
  --t3:#8A9491;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(20,39,42,.05);
  --shadow-hover:0 10px 26px rgba(20,39,42,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  color:var(--t2);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--serif);color:var(--t1);margin:0;font-weight:700;}
h1{font-size:40px;line-height:1.25;}
h2{font-size:29px;line-height:1.35;}
h3{font-size:20px;line-height:1.4;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
a{color:var(--ink);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--orange);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;}
::selection{background:rgba(217,120,46,.22);}

.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}
.section{padding:96px 0;}
.section--mist{background:var(--mist);}
.section--paper{background:var(--paper);}
.section--deep{background:linear-gradient(160deg,#14272A 0%,#1E3A3C 100%);color:rgba(255,255,255,.82);}
.section--deep h2,.section--deep h3{color:#FFFFFF;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{margin-bottom:16px;}
.section-head p{font-size:16px;color:var(--t2);}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,243,236,.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 18px rgba(20,39,42,.06);background:rgba(246,243,236,.99);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand .brand-mark{width:34px;height:34px;flex:0 0 auto;}
.brand-text strong{font-family:var(--serif);font-size:18px;color:var(--ink);letter-spacing:0;display:block;line-height:1.2;}
.brand-text span{font-size:11px;color:var(--t3);display:block;line-height:1.4;}
.site-nav{display:flex;align-items:center;gap:30px;}
.nav-link{position:relative;font-size:15px;color:var(--t2);font-weight:500;padding:6px 0;}
.nav-link::after{content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:2px;background:var(--orange);transition:left .22s ease,right .22s ease;}
.nav-link:hover::after{left:0;right:0;}
.nav-link:hover{color:var(--t1);}
.nav-link.is-active{color:var(--t1);font-weight:600;}
.nav-link.is-active::after{left:0;right:0;height:3px;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line-2);border-radius:12px;
  background:#fff;align-items:center;justify-content:center;color:var(--ink);
}
.nav-toggle svg{width:20px;height:20px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px rgba(217,120,46,.22);}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:none;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:rgba(30,58,60,.08);color:var(--ink);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}

/* 移动抽屉 */
.nav-drawer{
  display:none;position:fixed;top:68px;left:0;right:0;z-index:55;
  background:#fff;border-bottom:1px solid var(--line);padding:14px 20px 20px;
  box-shadow:0 16px 30px rgba(20,39,42,.10);
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{display:block;padding:12px 4px;font-size:16px;color:var(--t1);border-bottom:1px solid var(--mist);}
.nav-drawer a:last-of-type{border-bottom:0;}
.nav-drawer a.is-active{color:var(--orange);font-weight:600;}
.nav-drawer .btn{margin-top:12px;}

/* 分类 Hero */
.cat-hero{
  position:relative;
  padding:58px 0 64px;
  background-image:linear-gradient(180deg,rgba(238,242,240,.90) 0%,rgba(246,243,236,.96) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{font-size:14px;color:var(--t3);margin-bottom:22px;display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb a{color:var(--t3);}
.breadcrumb a:hover{color:var(--orange);}
.breadcrumb .sep{color:var(--line-2);}
.breadcrumb .is-current{color:var(--t1);}
.cat-hero h1{max-width:860px;margin-bottom:18px;}
.hero-sub{font-size:17px;color:var(--t2);max-width:680px;margin-bottom:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;}
.hero-stats li{display:flex;flex-direction:column;}
.hero-stats strong{font-family:var(--sans);font-size:28px;font-weight:700;color:var(--ink);line-height:1.2;letter-spacing:.01em;}
.hero-stats span{font-size:13px;color:var(--t3);margin-top:4px;}

/* 说明 */
.intro-grid p{font-size:16px;color:var(--t2);}
.intro-lead{font-family:var(--serif);font-size:22px;line-height:1.6;color:var(--t1);}
.intro-note{
  margin-top:26px;padding:20px 22px;background:#fff;border:1px solid var(--line);
  border-left:3px solid var(--orange);border-radius:var(--radius-sm);font-size:15px;color:var(--t2);
}

/* 保障条 */
.assure-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:30px 0;}
.assure-list{display:flex;flex-wrap:wrap;}
.assure-item{flex:1 1 25%;display:flex;align-items:center;gap:12px;padding:8px 20px;border-right:1px solid var(--line);}
.assure-item:last-child{border-right:0;}
.assure-item svg{width:28px;height:28px;color:var(--cloud);flex:0 0 auto;}
.assure-item span{font-size:14px;color:var(--t2);}

/* 图文交替 */
.split-row{align-items:center;margin-bottom:72px;}
.split-row:last-child{margin-bottom:0;}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);}
.split-body{padding:8px 0;}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--sans);font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--orange);background:rgba(217,120,46,.12);
  padding:5px 12px;border-radius:999px;margin-bottom:16px;
}
.split-body h3{margin-bottom:14px;}
.split-body p{font-size:16px;color:var(--t2);}
.split-points{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.split-points li{position:relative;padding-left:20px;font-size:15px;color:var(--t2);}
.split-points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--orange);opacity:.75;
}
@media (min-width:640px){
  .split-row.is-reversed .split-media{order:2;}
  .split-row.is-reversed .split-body{order:1;}
}

/* 注意事项 */
.note-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);height:100%;
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.note-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(30,58,60,.2);}
.note-card h3{font-size:18px;margin-bottom:10px;}
.note-card p{font-size:15px;color:var(--t2);}
.note-icon{width:34px;height:34px;color:var(--orange);margin-bottom:14px;}

/* FAQ */
.accordion{border:0;background:transparent;}
.accordion-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow);}
.accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-family:var(--sans);font-size:16px;font-weight:600;color:var(--t1);
  padding:18px 22px;min-height:56px;border:0;background:#fff;line-height:1.6;
}
.accordion-title:hover,.accordion-title:focus{background:#FBF9F4;color:var(--t1);}
.accordion-title::before{
  content:"";order:2;width:14px;height:14px;flex:0 0 auto;position:relative;
  background:
    linear-gradient(var(--orange),var(--orange)) center/14px 2px no-repeat,
    linear-gradient(var(--orange),var(--orange)) center/2px 14px no-repeat;
  transition:transform .25s ease;
}
.accordion-item.is-active .accordion-title::before{transform:rotate(135deg);}
.accordion-content{border:0;padding:0 22px 20px;background:#fff;color:var(--t2);font-size:15px;line-height:1.85;}
.accordion-content p{font-size:15px;}

/* CTA 表单 */
.cta-grid{align-items:center;}
.cta-copy h2{margin-bottom:14px;}
.cta-copy p{color:rgba(255,255,255,.78);font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.section--deep .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5);}
.section--deep .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.quote-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:26px;}
.quote-card h3{font-size:18px;margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;height:46px;padding:0 14px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.94);
  color:var(--t1);transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;min-height:92px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--orange);box-shadow:0 0 0 4px rgba(217,120,46,.22);
}
.field input::placeholder,.field textarea::placeholder{color:#9AA3A0;}
.form-note{margin-top:12px;font-size:13px;color:rgba(255,255,255,.7);}
.form-note.is-ok{color:#F0B37E;}

/* 页脚 */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.8);padding:64px 0 0;border-top:1px solid rgba(255,255,255,.12);}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{width:36px;height:36px;}
.footer-brand strong{font-family:var(--serif);font-size:19px;color:#fff;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:420px;}
.footer-col h4{font-family:var(--sans);font-size:14px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--orange);}
.footer-contact{font-size:14px;line-height:2;color:rgba(255,255,255,.72);}
.footer-contact b{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* 移动底部 Tab */
.mobile-tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.98);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(20,39,42,.07);
}
.mobile-tabbar ul{display:flex;}
.mobile-tabbar li{flex:1 1 0;}
.mobile-tabbar a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:58px;font-size:11px;color:var(--cloud);
}
.mobile-tabbar a svg{width:24px;height:24px;}
.mobile-tabbar a.is-active{color:var(--orange);}

/* 响应式 */
@media (max-width:1023px){
  .section{padding:72px 0;}
  h1{font-size:34px;}
  h2{font-size:26px;}
  .site-nav{gap:20px;}
  .assure-item{flex:1 1 50%;border-right:0;padding:10px 12px;}
  .split-row{margin-bottom:56px;}
}
@media (max-width:767px){
  .site-nav,.header-actions{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:56px 0;}
  .container{padding:0 16px;}
  body{padding-bottom:72px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  .cat-hero{padding:38px 0 44px;}
  .hero-sub{font-size:16px;}
  .hero-stats{gap:24px;}
  .hero-stats strong{font-size:24px;}
  .assure-list{gap:0;}
  .assure-item{flex:1 1 50%;}
  .split-media{margin-bottom:22px;}
  .mobile-tabbar{display:block;}
  .footer-bottom{justify-content:flex-start;}
  .quote-card{padding:20px;margin-top:26px;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --ink:#1E3A3C;
  --ink-deep:#14272A;
  --orange:#D9782E;
  --orange-deep:#C2661F;
  --mist:#7C9492;
  --paper:#F6F3EC;
  --panel:#EEF2F0;
  --white:#FFFFFF;
  --line:#E4DED2;
  --line-cool:#D9E0DE;
  --t1:#1B2422;
  --t2:#55605E;
  --t3:#8A9491;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(20,39,42,.05);
  --sh-2:0 10px 26px rgba(20,39,42,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:system-ui,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:68px;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--t1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0}
p{margin:0}
img{display:block;max-width:100%;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,opacity .2s ease}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:4px}
::selection{background:rgba(217,120,46,.22)}
/* ============ 容器与板块 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:96px 0}
.section--panel{background:var(--panel)}
.section--paper{background:var(--paper)}
.section--dark{background:linear-gradient(160deg,#14272A 0%,#1E3A3C 100%);color:rgba(255,255,255,.86);position:relative;overflow:hidden}
.section-head{max-width:760px;margin-bottom:48px}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:700;color:var(--orange-deep);margin-bottom:10px}
.section-head h2{font-family:var(--serif);font-size:clamp(24px,2.6vw,32px);line-height:1.35;color:var(--ink);margin-bottom:14px}
.section-head p{font-size:16px;color:var(--t2);line-height:1.9}
.section--dark .section-head h2{color:#fff}
.section--dark .section-head p{color:rgba(255,255,255,.72)}
.section--dark .section-head .eyebrow{color:#E9A268}
/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:var(--paper);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 4px 18px rgba(20,39,42,.07)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:34px;height:34px;flex:0 0 34px}
.brand-name{font-family:var(--serif);font-size:20px;font-weight:700;color:var(--ink);line-height:1}
.site-nav{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;color:var(--t2);padding:6px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:50%;bottom:-3px;width:0;height:2px;background:var(--mist);transform:translateX(-50%);transition:width .25s ease}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:62%}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::before{content:"";position:absolute;left:50%;bottom:-3px;width:22px;height:3px;border-radius:2px;background:var(--orange);transform:translateX(-50%)}
.nav-link.is-active::after{display:none}
.header-actions{display:flex;align-items:center;gap:12px}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px rgba(217,120,46,.22)}
.btn-primary:hover{background:var(--orange-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(217,120,46,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(217,120,46,.2)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:rgba(30,58,60,.08);color:var(--ink);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--ink);border-color:rgba(255,255,255,.6)}
.btn-light:hover{background:#F1EDE3;color:var(--ink);transform:translateY(-1px)}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-block{width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:52px 0 76px;
  background-color:#E6EEEC;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(246,243,236,.96) 0%,rgba(238,242,240,.90) 46%,rgba(206,228,224,.74) 100%);
}
.hero .container{position:relative;z-index:1}
.breadcrumb{font-size:14px;color:var(--t3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px}
.breadcrumb a{color:var(--t3)}
.breadcrumb a:hover{color:var(--orange-deep)}
.breadcrumb .sep{color:var(--line-cool)}
.breadcrumb .current{color:var(--t2);font-weight:600}
.badge{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;background:rgba(217,120,46,.13);color:var(--orange-deep);font-size:13px;font-weight:600}
.hero h1{font-family:var(--serif);font-size:clamp(28px,3.6vw,44px);line-height:1.25;color:var(--ink);margin:16px 0 14px}
.hero-lead{font-size:17px;color:var(--t2);max-width:600px}
.hero-copy{margin-top:22px;max-width:620px}
.hero-copy p{font-size:16px;line-height:1.9;color:var(--t2);margin-bottom:12px}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);border:1px solid rgba(255,255,255,.7);margin-top:32px}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,39,42,0) 42%,rgba(20,39,42,.48))}
.hero-media .media-tag{position:absolute;left:20px;bottom:16px;z-index:2;color:#fff;font-size:13.5px}
/* ============ 三栏信息卡 ============ */
.info-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(30,58,60,.2)}
.info-card .idx{font-family:var(--serif);font-size:15px;font-weight:700;color:var(--mist);margin-bottom:16px}
.info-icon{width:46px;height:46px;border-radius:13px;background:rgba(217,120,46,.1);color:var(--orange-deep);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.info-icon svg{width:24px;height:24px}
.info-card h3{font-size:20px;line-height:1.4;color:var(--ink);margin-bottom:12px}
.info-card p{font-size:15.5px;color:var(--t2);margin-bottom:18px}
.info-list li{position:relative;padding-left:20px;font-size:15px;line-height:1.85;color:var(--t2);margin-bottom:9px}
.info-list li:last-child{margin-bottom:0}
.info-list li::before{content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;border-radius:50%;background:var(--mist)}
/* ============ 横向时间轴 ============ */
.timeline{position:relative;display:flex}
.timeline::before{content:"";position:absolute;left:0;right:0;top:7px;height:2px;background:var(--line-cool)}
.tl-item{position:relative;flex:1 1 0;padding:44px 20px 0 0}
.tl-item::before{content:"";position:absolute;top:0;left:0;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--orange);z-index:1}
.tl-num{display:block;font-family:var(--serif);font-size:14px;font-weight:700;color:var(--orange-deep);margin-bottom:6px}
.tl-item h3{font-size:17.5px;line-height:1.4;color:var(--ink);margin-bottom:10px}
.tl-item p{font-size:14.5px;line-height:1.85;color:var(--t2);padding-right:14px}
/* ============ 深色交付区 ============ */
.dark-card-title{font-size:20px;color:#fff;margin-bottom:6px}
.dark-card-sub{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:20px}
.check-list li{display:flex;gap:14px;align-items:flex-start;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.82)}
.check-list li:last-child{border-bottom:none}
.check-list svg{flex:0 0 20px;width:20px;height:20px;margin-top:6px;color:var(--orange)}
.dark-note{font-size:14px;color:rgba(255,255,255,.6);margin-top:22px;padding-left:16px;border-left:2px solid rgba(217,120,46,.6)}
/* ============ FAQ Accordion ============ */
.faq-accordion{background:transparent;border:none;max-width:900px}
.faq-accordion .accordion-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:12px;overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease}
.faq-accordion .accordion-item:hover{box-shadow:var(--sh-1);border-color:rgba(30,58,60,.16)}
.faq-accordion .accordion-title{
  position:relative;display:flex;align-items:center;min-height:56px;
  padding:18px 56px 18px 22px;background:#fff;border:none;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
}
.faq-accordion .accordion-title:hover{background:#F6F3EC;color:var(--ink)}
.faq-accordion .accordion-title::before{content:"";position:absolute;right:24px;top:50%;width:14px;height:2px;background:var(--orange);transform:translateY(-50%);transition:transform .25s ease}
.faq-accordion .accordion-title::after{content:"";position:absolute;right:29.5px;top:50%;width:2px;height:14px;background:var(--orange);transform:translateY(-50%);transition:transform .25s ease,opacity .25s ease}
.faq-accordion .accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(90deg);opacity:0}
.faq-accordion .accordion-content{padding:0 22px 22px;border:none;background:#fff;font-size:15px;line-height:1.9;color:var(--t2)}
/* ============ CTA 表单带 ============ */
.cta-deco{position:absolute;right:-60px;bottom:-40px;width:420px;opacity:.16;pointer-events:none}
.cta-title{font-family:var(--serif);font-size:clamp(24px,2.6vw,32px);line-height:1.35;color:#fff;margin-bottom:16px}
.cta-text{font-size:16px;line-height:1.9;color:rgba(255,255,255,.76);max-width:520px}
.cta-list{margin-top:26px}
.cta-list li{position:relative;padding-left:20px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.74);margin-bottom:9px}
.cta-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--orange)}
.cta-form{background:#fff;border-radius:var(--r-md);padding:28px 26px;box-shadow:0 18px 40px rgba(0,0,0,.2)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;color:var(--t2);margin-bottom:8px}
.field input,.field textarea{
  width:100%;border:1px solid var(--line-cool);border-radius:var(--r-sm);
  background:#fff;font-size:15px;color:var(--t1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input{height:46px;padding:0 14px}
.field textarea{min-height:96px;padding:12px 14px;line-height:1.8;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--t3)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 4px rgba(217,120,46,.15)}
.form-hint{font-size:13px;color:var(--t3);margin-top:12px;line-height:1.7}
/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.8);padding:64px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:32px;height:32px;flex:0 0 32px}
.footer-brand strong{font-family:var(--serif);font-size:19px;color:#fff}
.footer-about{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.68);max-width:430px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer-col ul li{margin-bottom:11px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff}
.footer-contact{font-size:14.5px;line-height:2.1;color:rgba(255,255,255,.72)}
.footer-contact b{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:48px;padding:20px 0 30px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13.5px;color:rgba(255,255,255,.58);
}
/* ============ 移动底部 Tab ============ */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;
  background:#fff;border-top:1px solid var(--line);
  padding:6px 0 calc(6px + env(safe-area-inset-bottom));
  box-shadow:0 -4px 16px rgba(20,39,42,.06);
}
.mobile-tabbar .tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  font-size:11.5px;line-height:1.4;color:var(--mist);padding:4px 2px;
}
.mobile-tabbar .tab-item svg{width:24px;height:24px}
.mobile-tabbar .tab-item.is-active{color:var(--orange);font-weight:600}
/* ============ 响应式 ============ */
@media (max-width:1199px){
  .tl-item{padding-right:14px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .section-head{margin-bottom:36px}
  .hero{padding:44px 0 64px}
  .timeline{flex-direction:column}
  .timeline::before{left:7px;right:auto;top:8px;bottom:8px;width:2px;height:auto}
  .tl-item{flex:none;padding:0 0 26px 30px}
  .tl-item::before{left:0;top:4px}
  .tl-item p{padding-right:0}
  .tl-item:last-child{padding-bottom:0}
}
@media (max-width:767px){
  body{padding-bottom:72px}
  .site-nav{display:none}
  .header-actions .btn{display:none}
  .mobile-tabbar{display:flex}
  .hero-media{margin-top:26px}
  .hero-media img{aspect-ratio:16/9}
  .form-row{grid-template-columns:1fr}
  .cta-form{padding:24px 20px;margin-top:28px}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hero h1{font-size:28px}
  .hero-lead{font-size:16px}
  .hero-copy p{font-size:15.5px}
  .info-card{padding:24px 20px}
  .btn{padding:12px 22px;font-size:14.5px}
  .btn-row{gap:10px}
  .footer-bottom{font-size:13px}
}

/* roulang page: category3 */
:root{
  --ink:#1E3A3C;
  --ink-deep:#14272A;
  --orange:#D9782E;
  --orange-dark:#C2661F;
  --mist:#7C9492;
  --paper:#F6F3EC;
  --paper-soft:#EEF2F0;
  --white:#FFFFFF;
  --line:#E4DED2;
  --line-cool:#D9E0DE;
  --t1:#1B2422;
  --t2:#55605E;
  --t3:#8A9491;
  --r-lg:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,39,42,.05);
  --sh-2:0 10px 26px rgba(20,39,42,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:system-ui,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  --gap-lg:96px;
  --gap-md:72px;
  --gap-sm:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--t1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--orange-dark)}
h1,h2,h3,h4{margin:0;font-family:var(--serif);color:var(--ink);font-weight:700;line-height:1.3}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px}
::selection{background:rgba(217,120,46,.22)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--gap-lg) 0}
.section-tight{padding:var(--gap-md) 0}
.bg-paper-soft{background:var(--paper-soft)}
.bg-dark{background:linear-gradient(158deg,#14272A 0%,#1E3A3C 100%);color:rgba(255,255,255,.86)}
.bg-dark h2,.bg-dark h3{color:#fff}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1;color:var(--orange);
  background:rgba(217,120,46,.12);
  padding:8px 14px;border-radius:var(--r-pill);font-weight:600;
}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head h2{font-size:30px;letter-spacing:0}
.sec-head p{margin-top:16px;color:var(--t2);font-size:16.5px}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:68px;
  background:rgba(246,243,236,.94);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 2px 14px rgba(20,39,42,.07)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:19px;font-weight:700;color:var(--ink)}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.site-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-block;padding:9px 13px;font-size:15px;
  color:var(--t2);border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;
  background:var(--orange);border-radius:2px;transform:translateX(-50%);
  transition:width .25s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:50%}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{width:26px;height:3px}
.header-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:10px;background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .25s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  display:none;position:fixed;top:68px;left:0;right:0;z-index:79;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 12px 24px rgba(20,39,42,.08);padding:8px 20px 18px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:block;padding:14px 4px;font-size:16px;color:var(--t2);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a:last-of-type{border-bottom:0}
.mobile-drawer a.is-active{color:var(--ink);font-weight:600}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:13px 26px;font-size:15px;font-weight:600;
  line-height:1.2;border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px rgba(217,120,46,.22)}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:rgba(30,58,60,.08);color:var(--ink)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:#F6F3EC;color:var(--ink);transform:translateY(-1px)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--orange);
  border-bottom:1px solid rgba(217,120,46,.35);padding-bottom:2px;
}
.btn-link:hover{color:var(--orange-dark);border-bottom-color:var(--orange-dark)}
.btn-link svg{width:16px;height:16px;transition:transform .2s ease}
.btn-link:hover svg{transform:translateX(3px)}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;
  padding:calc(68px + 60px) 0 64px;
  background-image:linear-gradient(110deg,rgba(238,242,240,.96) 8%,rgba(238,242,240,.82) 46%,rgba(246,243,236,.72) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;
  border:1.5px solid rgba(124,148,146,.35);border-radius:50%;pointer-events:none;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--t3);margin-bottom:22px}
.breadcrumb a{color:var(--t3)}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb .sep{color:var(--line-cool)}
.breadcrumb .current{color:var(--t2);font-weight:600}
.page-hero h1{
  font-size:41px;line-height:1.25;max-width:820px;margin:18px 0 0;
}
.hero-sub{margin-top:18px;font-size:18px;color:var(--t2);max-width:660px}
.hero-copy{margin-top:26px;max-width:720px;color:var(--t2);font-size:16.5px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-strip{
  display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:28px;border-top:1px solid rgba(124,148,146,.3);
}
.metric-item strong{
  display:block;font-size:26px;font-weight:700;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.metric-item span{font-size:13px;color:var(--t3)}

/* ============ 行式检查项 ============ */
.check-list{display:flex;flex-direction:column;gap:16px}
.row-card{
  display:grid;grid-template-columns:196px minmax(0,1fr) 132px;gap:26px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.row-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(217,120,46,.28)}
.row-thumb{aspect-ratio:16/10;border-radius:var(--r-sm);overflow:hidden;background:var(--paper-soft)}
.row-thumb img{width:100%;height:100%;object-fit:cover}
.row-body h3{font-size:20px;margin:12px 0 10px}
.row-body p{color:var(--t2);font-size:15.5px;margin-bottom:12px}
.row-points{display:flex;flex-wrap:wrap;gap:8px 20px}
.row-points li{
  position:relative;padding-left:16px;font-size:14.5px;color:var(--t2);
}
.row-points li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--orange);
}
.row-metric{
  text-align:right;border-left:1px solid var(--line);padding-left:20px;
}
.row-metric strong{
  display:block;font-size:19px;color:var(--ink);font-variant-numeric:tabular-nums;
}
.row-metric span{font-size:13px;color:var(--t3)}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--orange);
  background:rgba(217,120,46,.12);padding:5px 12px;border-radius:var(--r-pill);
  line-height:1.2;
}

/* ============ 参数表 ============ */
.table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.spec-table{width:100%;border-collapse:collapse;min-width:640px;margin:0}
.spec-table thead th{
  background:var(--paper-soft);color:var(--ink);font-size:14px;font-weight:600;
  text-align:left;padding:16px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.spec-table tbody td{
  padding:17px 22px;font-size:15px;color:var(--t2);border-bottom:1px solid var(--line);
}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr:hover{background:rgba(238,242,240,.6)}
.spec-table tbody td:first-child{color:var(--t1);font-weight:600}
.spec-table .num{font-variant-numeric:tabular-nums;color:var(--ink);font-weight:600}
.table-note{margin-top:14px;font-size:13.5px;color:var(--t3)}

/* ============ 节奏卡 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--sh-1);position:relative;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(217,120,46,.28)}
.step-num{
  font-family:var(--serif);font-size:15px;font-weight:700;color:var(--orange);
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;border:1.5px solid rgba(217,120,46,.4);
  margin-bottom:16px;
}
.step-card h3{font-size:19px;margin-bottom:10px}
.step-card p{font-size:15px;color:var(--t2);margin:0}

/* ============ FAQ ============ */
.faq-accordion{
  margin:0;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;background:#fff;box-shadow:var(--sh-1);
}
.faq-accordion .accordion-item + .accordion-item{border-top:1px solid var(--line)}
.faq-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:17px 24px;font-size:16px;font-weight:500;color:var(--t1);
  background:transparent;border:0;line-height:1.6;
}
.faq-accordion .accordion-title::before{display:none}
.faq-accordion .accordion-title::after{
  content:"";flex:0 0 auto;width:16px;height:16px;
  background-image:linear-gradient(var(--orange),var(--orange)),linear-gradient(var(--orange),var(--orange));
  background-position:center,center;
  background-size:16px 2px,2px 16px;
  background-repeat:no-repeat;
  transition:transform .28s ease;
}
.faq-accordion .accordion-title[aria-expanded="true"]::after{transform:rotate(135deg)}
.faq-accordion .accordion-title:hover{color:var(--orange-dark);background:rgba(238,242,240,.5)}
.faq-accordion .accordion-content{
  padding:0 24px 22px;font-size:15px;color:var(--t2);border:0;background:#fff;
}
.faq-accordion .accordion-content p{margin-bottom:.9em}
.faq-accordion .accordion-content p:last-child{margin-bottom:0}

/* ============ CTA 带 ============ */
.cta-band{padding:var(--gap-lg) 0}
.cta-band .cta-inner{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);
  border-radius:18px;padding:48px;
}
.cta-band h2{font-size:30px;line-height:1.35}
.cta-band .cta-lead{margin-top:16px;color:rgba(255,255,255,.78);font-size:16px;max-width:520px}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{position:relative;padding-left:22px;font-size:15px;color:rgba(255,255,255,.8)}
.cta-points li::before{
  content:"";position:absolute;left:0;top:.6em;width:10px;height:10px;border-radius:50%;
  border:1.5px solid var(--orange);
}
.inquiry-form{background:#fff;border-radius:var(--r-lg);padding:28px;box-shadow:0 18px 40px rgba(0,0,0,.18)}
.inquiry-form h3{font-size:19px;margin-bottom:18px;color:var(--ink)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;color:var(--t2);margin-bottom:7px}
.field input,.field textarea{
  width:100%;height:46px;padding:0 14px;font-family:inherit;font-size:15px;color:var(--t1);
  border:1px solid var(--line-cool);border-radius:var(--r-sm);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:92px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:0;border-color:var(--orange);box-shadow:0 0 0 4px rgba(217,120,46,.14);
}
.form-hint{font-size:13px;color:var(--t3);margin-top:12px}
.form-msg{
  display:none;margin-top:14px;font-size:14px;color:var(--orange-dark);
  background:rgba(217,120,46,.1);border-radius:var(--r-sm);padding:10px 14px;
}
.form-msg.is-visible{display:block}

/* ============ 页脚 ============ */
.site-footer{
  background:linear-gradient(160deg,#14272A 0%,#1E3A3C 100%);
  color:rgba(255,255,255,.8);padding:72px 0 0;border-top:1px solid rgba(255,255,255,.08);
}
.footer-brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-size:20px;color:#fff}
.footer-brand .brand-mark{width:36px;height:36px}
.footer-about{margin-top:18px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.72);max-width:420px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;font-family:var(--sans);font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:15px}
.footer-col a:hover{color:var(--orange)}
.footer-contact{font-size:15px;line-height:2;color:rgba(255,255,255,.72)}
.footer-contact b{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.58);
}

/* ============ 移动底部 Tab ============ */
.mobile-tabs{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -4px 18px rgba(20,39,42,.07);
}
.mobile-tabs .tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:58px;font-size:11px;color:var(--mist);
}
.mobile-tabs .tab-item svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.mobile-tabs .tab-item.is-active{color:var(--orange)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .page-hero h1{font-size:36px}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1023px){
  .section{padding:var(--gap-md) 0}
  .cta-band{padding:var(--gap-md) 0}
  .sec-head h2{font-size:27px}
  .row-card{grid-template-columns:168px minmax(0,1fr)}
  .row-metric{
    grid-column:1 / -1;border-left:0;border-top:1px solid var(--line);
    padding:14px 0 0;text-align:left;display:flex;align-items:baseline;gap:10px;
  }
  .cta-band .cta-inner{padding:36px}
}
@media (max-width:767px){
  .site-nav,.header-cta .btn{display:none}
  .nav-toggle{display:flex}
  .mobile-tabs{display:flex}
  body{padding-bottom:72px}
  .page-hero{padding:calc(68px + 40px) 0 48px}
  .page-hero h1{font-size:28px}
  .hero-sub{font-size:16.5px}
  .hero-strip{gap:22px 32px;margin-top:34px}
  .metric-item strong{font-size:22px}
  .row-card{grid-template-columns:1fr;gap:16px}
  .row-thumb{aspect-ratio:16/9}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:639px){
  .section{padding:var(--gap-sm) 0}
  .cta-band{padding:var(--gap-sm) 0}
  .container{padding:0 16px}
  .sec-head h2{font-size:24px}
  .step-grid{grid-template-columns:1fr}
  .cta-band .cta-inner{padding:26px 20px}
  .inquiry-form{padding:22px}
  .faq-accordion .accordion-title{padding:15px 18px;font-size:15.5px}
  .faq-accordion .accordion-content{padding:0 18px 20px}
}