/* roulang page: index */
:root{
  --brand:#1F4A3F;
  --brand-dark:#18392F;
  --brand-deep:#16211D;
  --amber:#C9873A;
  --amber-dark:#B87A2E;
  --brick:#A8452F;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --ink:#1B211F;
  --ink-2:#5A625E;
  --ink-3:#8A928E;
  --line:#E4DED2;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 2px 6px rgba(20,30,26,.06);
  --sh-2:0 10px 28px rgba(20,30,26,.12);
  --sec-y:72px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Helvetica Neue",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
a{color:inherit;text-decoration:none;transition:color .22s ease}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none;margin:0;padding:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sec-y) 0}
.section--tight{padding:54px 0}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:12px 0;
  background:rgba(247,244,238,.93);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(228,222,210,.7);
}
.nav-panel{
  display:flex;align-items:center;gap:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:11px 16px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(145deg,#275C4F,var(--brand-dark));
  color:#fff;font-weight:700;font-size:13px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:-.3px;flex:0 0 auto;
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:-.3px;line-height:1.2;white-space:nowrap}
.logo-sub{display:block;font-family:var(--font-num);font-size:10px;letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 12px;border-radius:10px;
  font-size:14px;color:var(--ink-2);
  background:#FAF8F4;border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.nav-item:hover{background:#EFF4F1;color:var(--brand);border-color:#DCE6E0}
.nav-item.is-active{background:var(--brand);color:#fff;border-color:var(--brand)}
.nav-item.is-active:hover{background:var(--brand-dark);color:#fff}
.nav-dot{width:6px;height:6px;border-radius:2px;background:var(--amber);flex:0 0 auto}
.nav-item.is-active .nav-dot{background:#E8C79A}
.nav-cta{margin-left:8px}
.nav-toggle{
  display:none;width:42px;height:42px;margin-left:auto;
  border-radius:11px;background:#F1EFE9;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-drawer{
  display:none;margin-top:12px;padding:14px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-2);
}
.nav-drawer.is-open{display:block}
.nav-drawer .nav-item{width:100%;justify-content:flex-start;padding:11px 14px;font-size:15px;background:#FAF8F4;margin-bottom:8px}
.nav-drawer .btn{width:100%;margin-top:6px}

/* ---------- 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
  white-space:nowrap;line-height:1.4;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(31,74,63,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);color:#fff}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.btn-amber{background:var(--amber);color:#231A0D;box-shadow:0 6px 16px rgba(201,135,58,.26)}
.btn-amber:hover{background:var(--amber-dark);transform:translateY(-1px);color:#231A0D}
.btn-light{background:#fff;color:var(--brand);border-color:rgba(255,255,255,.5)}
.btn-light:hover{background:#F2EFE8;color:var(--brand-dark);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:15px 30px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}
.tag{
  display:inline-block;padding:3px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;background:#EFF4F1;color:var(--brand);line-height:1.7;
}
.tag-brick{background:#F7ECE9;color:var(--brick)}
.tag-amber{background:#FBF1E3;color:#8C5D22}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-eyebrow{
  display:inline-block;font-family:var(--font-num);font-size:12px;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;color:var(--amber);margin-bottom:8px;
}
.sec-title{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.5px}
.sec-desc{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:660px;line-height:1.8}
.sec-more{font-size:14px;font-weight:600;color:var(--brand);border-bottom:1px solid transparent;white-space:nowrap}
.sec-more:hover{color:var(--amber);border-color:var(--amber)}

/* ---------- Hero ---------- */
.hero{padding:44px 0 0}
.hero-inner{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center}
.hero-copy{grid-column:span 6}
.hero-label{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  font-size:13px;color:var(--ink-2);margin-bottom:20px;
}
.hero-label i{width:7px;height:7px;border-radius:50%;background:var(--amber);display:inline-block}
.hero h1{
  font-size:40px;line-height:1.28;font-weight:700;letter-spacing:-1px;margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--brand);border-bottom:3px solid rgba(201,135,58,.4)}
.hero-sub{font-size:17px;color:var(--ink-2);line-height:1.85;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.trust-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  font-size:13px;color:var(--ink-2);
}
.trust-chip i{width:7px;height:7px;border-radius:50%;background:var(--amber);display:inline-block}
.hero-media{grid-column:span 6;position:relative}
.hero-media img{
  width:100%;height:430px;object-fit:cover;
  border-radius:16px;border:1px solid var(--line);box-shadow:var(--sh-2);
}
.hero-float{
  position:absolute;left:-14px;bottom:28px;min-width:250px;
  background:rgba(255,255,255,.97);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-2);padding:16px 18px;
}
.hero-float h4{font-size:13px;color:var(--brand);font-weight:700;margin-bottom:8px;letter-spacing:.04em}
.hero-float li{display:flex;gap:9px;font-size:13px;color:var(--ink-2);line-height:1.65;padding:3px 0}
.hero-float li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--amber);margin-top:9px;flex:0 0 auto}

/* ---------- 卖点卡片 ---------- */
.card-grid{margin:-12px}
.card-grid > .cell{padding:12px;display:flex}
.value-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;width:100%;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.value-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6E0DA}
.value-icon{
  width:46px;height:46px;border-radius:12px;background:#EFF4F1;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;
  margin-bottom:16px;font-family:var(--font-num);
}
.value-card h3{font-size:19px;font-weight:700;margin-bottom:9px;letter-spacing:-.2px}
.value-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8}

/* ---------- 演示区 ---------- */
.demo-inner{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.demo-points{display:grid;gap:14px;margin-top:26px}
.demo-point{
  display:flex;gap:14px;padding:16px 18px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.demo-point:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.demo-point b{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--brand);color:#fff;
  font-size:12px;font-family:var(--font-num);display:flex;align-items:center;justify-content:center;
}
.demo-point span{font-size:14.5px;color:var(--ink-2);line-height:1.75}
.demo-media{position:relative}
.demo-media img{width:100%;height:400px;object-fit:cover;border-radius:16px;border:1px solid var(--line);box-shadow:var(--sh-2)}
.demo-badge{
  position:absolute;top:20px;left:-16px;background:var(--brand);color:#fff;
  border-radius:var(--r-pill);padding:8px 16px;font-size:13px;font-weight:600;
  box-shadow:0 8px 20px rgba(31,74,63,.3);
}
.demo-cap{
  position:absolute;right:-10px;bottom:24px;background:rgba(255,255,255,.97);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);
  padding:12px 16px;font-size:13px;color:var(--ink-2);max-width:220px;line-height:1.7;
}

/* ---------- 证据区 ---------- */
.proof-band{
  background:#FBF9F5;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:60px 0;
}
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.proof-item{border-left:2px solid rgba(31,74,63,.16);padding-left:20px}
.proof-num{font-family:var(--font-num);font-size:40px;font-weight:700;color:var(--brand);line-height:1;letter-spacing:-1.5px}
.proof-num small{font-size:16px;font-weight:600;letter-spacing:0;margin-left:2px}
.proof-label{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.7}
.quote-card{
  margin-top:38px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--amber);
  border-radius:0 var(--r-card) var(--r-card) 0;padding:26px 30px;
  font-size:16px;color:var(--ink-2);line-height:1.9;
}
.quote-card cite{display:block;margin-top:12px;font-style:normal;font-size:13px;color:var(--ink-3)}

/* ---------- 最新信息 ---------- */
.news-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;width:100%;
  transition:transform .3s ease,box-shadow .3s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-thumb{display:block;overflow:hidden;aspect-ratio:16/9;background:#EFEBE2}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{
  font-size:18px;font-weight:700;line-height:1.5;letter-spacing:-.2px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title a:hover{color:var(--brand)}
.news-exc{
  font-size:14px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:12px;border-top:1px solid #F0ECE3;
  font-size:13px;color:var(--ink-3);font-family:var(--font-num);
}
.news-meta a{color:var(--brand);font-weight:600;font-family:var(--font-cn)}
.news-meta a:hover{color:var(--amber)}
.empty-box{
  border:1px dashed var(--line);border-radius:var(--r-card);background:#FDFCF9;
  padding:48px 24px;text-align:center;color:var(--ink-2);font-size:15px;
}
.empty-box .empty-line{
  width:120px;height:8px;border-radius:var(--r-pill);background:#EDE8DE;margin:0 auto 16px;
}

/* ---------- 价格 ---------- */
.price-card{
  display:flex;flex-direction:column;width:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.price-card.is-featured{border:2px solid var(--brand);box-shadow:var(--sh-2)}
.price-name{font-size:17px;font-weight:700;color:var(--ink)}
.price-note{font-size:13px;color:var(--ink-3);margin-top:6px}
.price-amount{
  font-family:var(--font-num);font-size:38px;font-weight:700;color:var(--brand);
  line-height:1.1;margin:18px 0 4px;letter-spacing:-1.5px;
}
.price-amount small{font-size:14px;font-weight:500;color:var(--ink-3);letter-spacing:0;margin-left:4px}
.price-list{margin:18px 0 24px;flex:1}
.price-list li{
  display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.7;
  padding:8px 0;border-bottom:1px dashed #EEE9E0;
}
.price-list li:last-child{border-bottom:0}
.price-list li::before{content:"✓";color:var(--amber);font-weight:700;flex:0 0 auto}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:box-shadow .3s ease}
.faq-item:hover{box-shadow:var(--sh-1)}
.faq-item.is-open{box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--brand)}
.faq-sign{position:relative;flex:0 0 auto;width:20px;height:20px}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s ease}
.faq-sign::before{left:0;top:9px;width:20px;height:2px}
.faq-sign::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-sign::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 8px}
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#1B2A25 0%,#16211D 100%);
  border-radius:20px;padding:58px 48px;text-align:center;color:#fff;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,135,58,.28),transparent 70%);
}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.35;letter-spacing:-.5px;margin-bottom:14px;position:relative}
.cta-band p{font-size:16px;color:#C3CEC9;max-width:640px;margin:0 auto;line-height:1.85;position:relative}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px;position:relative}
.cta-foot{margin-top:18px;font-size:13px;color:#8A9A93;position:relative}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#C3CEC9;margin-top:72px;padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-sub{color:#8A9A93}
.footer-brand p{margin-top:16px;font-size:14px;color:#9FB0A9;line-height:1.85;max-width:340px}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;letter-spacing:.02em}
.footer-links a{display:block;padding:6px 0;font-size:14px;color:#9FB0A9}
.footer-links a:hover{color:var(--amber)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A9A93;
}
.footer-bottom a{color:#B9C6C0}
.footer-bottom a:hover{color:var(--amber)}

/* ---------- 浮动按钮 ---------- */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:60;
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 20px;border-radius:var(--r-pill);
  background:var(--amber);color:#231A0D;font-size:14px;font-weight:700;
  box-shadow:0 12px 26px rgba(201,135,58,.36);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background .22s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--amber-dark);transform:translateY(-2px);color:#231A0D}
.float-cta svg{width:16px;height:16px;flex:0 0 auto}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  :root{--sec-y:60px}
  .hero h1{font-size:34px}
  .sec-title{font-size:26px}
  .nav-item{padding:8px 10px;font-size:13.5px}
  .hero-media img{height:380px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-copy,.hero-media{grid-column:span 12}
  .hero-media img{height:320px}
  .hero-float{left:12px;bottom:16px;min-width:220px}
  .demo-inner{grid-template-columns:1fr;gap:28px}
  .proof-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:44px 28px}
}
@media (max-width:767px){
  :root{--sec-y:48px}
  .container{padding:0 16px}
  body{font-size:16px}
  .hero{padding:26px 0 0}
  .hero h1{font-size:28px;line-height:1.35}
  .hero-sub{font-size:16px}
  .hero-media img{height:250px}
  .hero-float{position:static;margin-top:14px;left:auto;bottom:auto;min-width:0;width:100%}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .sec-title{font-size:22px}
  .proof-grid{grid-template-columns:1fr 1fr;gap:20px}
  .proof-num{font-size:32px}
  .demo-media img{height:260px}
  .demo-cap{position:static;margin-top:12px;max-width:none;right:auto;bottom:auto}
  .demo-badge{left:12px;top:12px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .cta-band{border-radius:16px;padding:36px 20px}
  .cta-band h2{font-size:22px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .float-cta{
    right:16px;bottom:16px;width:52px;height:52px;padding:0;border-radius:50%;
    justify-content:center;
  }
  .float-cta span{display:none}
  .quote-card{padding:20px 22px}
}
@media (max-width:519px){
  .hero h1{font-size:25px}
  .trust-chip{font-size:12.5px;padding:6px 12px}
  .proof-grid{grid-template-columns:1fr;gap:18px}
  .proof-item{border-left:0;border-top:2px solid rgba(31,74,63,.16);padding-left:0;padding-top:14px}
  .price-amount{font-size:32px}
}

/* roulang page: article */
:root{
  --brand:#1F4A3F;
  --brand-dark:#18392F;
  --brand-soft:#E8EFEA;
  --accent:#C9873A;
  --clay:#A8452F;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --ink:#1B211F;
  --muted:#5A625E;
  --soft:#8A928E;
  --line:#E4DED2;
  --deep:#16211D;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-sm:0 2px 6px rgba(20,30,26,.06);
  --sh-lg:0 10px 28px rgba(20,30,26,.12);
  --sp-sec:72px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .25s ease,background-color .25s ease,border-color .25s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.005em;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.2em;padding-left:1.4em;}
li{line-height:1.85;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:inline-block;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:10px 0;
  background:rgba(247,244,238,.92);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid rgba(228,222,210,.7);
}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
  padding:12px 16px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:14px;letter-spacing:.04em;
}
.logo-text{display:flex;flex-direction:column;font-size:16px;font-weight:700;color:var(--ink);line-height:1.25;}
.logo-text .logo-sub{
  font-family:var(--font-num);font-size:10px;
  letter-spacing:.16em;text-transform:uppercase;color:var(--soft);font-weight:600;
}
.nav-links{display:flex;flex-wrap:wrap;gap:8px;margin-left:auto;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 13px;border-radius:var(--r-btn);
  font-size:14px;color:var(--muted);background:#FBF9F5;
  border:1px solid transparent;white-space:nowrap;
}
.nav-item .nav-dot{width:6px;height:6px;border-radius:50%;background:var(--line);transition:background-color .25s ease;}
.nav-item:hover{background:var(--brand-soft);color:var(--brand);border-color:#D6E2DA;}
.nav-item:hover .nav-dot{background:var(--accent);}
.nav-item.is-active{background:var(--brand);color:#fff;border-color:var(--brand);}
.nav-item.is-active .nav-dot{background:var(--accent);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:38px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#FBF9F5;cursor:pointer;
  padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;transition:all .25s ease;text-align:center;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-sm);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-lg);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-light:hover{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn:focus-visible,a:focus-visible,button:focus-visible{
  outline:2px solid var(--accent);outline-offset:3px;
}
.btn[disabled]{opacity:.4;cursor:not-allowed;}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.03em;
  background:var(--brand-soft);color:var(--brand);
}
.tag-clay{background:rgba(168,69,47,.1);color:var(--clay);}
.tag-amber{background:rgba(201,135,58,.14);color:#95601F;}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:26px 0 6px;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--soft);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:var(--line);}
.crumb .crumb-cat{
  padding:3px 11px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-weight:600;
}
.crumb .current{color:var(--ink);font-weight:600;}

/* ---------- 文章头 ---------- */
.article-head{padding:14px 0 30px;}
.article-head .head-inner{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);overflow:hidden;}
.head-cover{position:relative;aspect-ratio:21/9;overflow:hidden;}
.head-cover img{width:100%;height:100%;object-fit:cover;}
.head-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(22,33,29,.05),rgba(22,33,29,.55));}
.head-body{padding:30px 34px 32px;}
.article-title{
  font-size:40px;line-height:1.28;margin-bottom:16px;color:var(--ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13px;color:var(--muted);font-family:var(--font-num);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--accent);}

/* ---------- 主体排版 ---------- */
.wrap-main{padding:12px 0 var(--sp-sec);}
.layout{display:flex;gap:34px;align-items:flex-start;}
.layout .main-col{flex:1 1 auto;min-width:0;}
.layout .side-col{flex:0 0 312px;max-width:312px;display:flex;flex-direction:column;gap:22px;position:sticky;top:96px;}
.paper{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:30px 34px;
}
.article-body{max-width:820px;font-size:17px;line-height:1.9;color:#242B28;}
.article-body h2{
  position:relative;padding-left:15px;font-size:24px;
  margin:2em 0 .8em;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;
  background:var(--brand);border-radius:2px;
}
.article-body h3{font-size:19px;font-weight:700;margin:1.7em 0 .7em;color:var(--ink);}
.article-body p{margin:0 0 1.1em;}
.article-body ul,.article-body ol{padding-left:1.4em;}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:#FBF8F2;border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--muted);font-style:italic;
}
.article-body img{border-radius:var(--r-img);margin:1.4em 0 .6em;}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body thead th{background:var(--brand-soft);color:var(--brand);font-weight:700;}
.article-body tbody tr:nth-child(even){background:#FBF9F5;}
.article-body code{
  background:#F1EEE7;padding:2px 6px;border-radius:6px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;
}
.article-body pre{
  background:#F1EEE7;padding:16px 18px;border-radius:var(--r-card);
  overflow:auto;font-size:14px;line-height:1.7;
}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(31,74,63,.28);}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{font-size:13px;color:var(--soft);text-align:right;margin-top:6px;}

.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);
  border-radius:var(--r-card);background:#FBF9F5;
}
.empty-state i{font-size:30px;color:var(--soft);}
.empty-state h3{font-size:20px;margin:14px 0 8px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}

/* ---------- 文末 ---------- */
.article-foot{padding-top:28px;margin-top:34px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px;}
.tag-row .label{
  font-size:13px;color:var(--soft);font-family:var(--font-num);
  align-self:center;margin-right:4px;
}
.related-title{font-size:20px;margin-bottom:18px;}
.card-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-sm);
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-lg);border-color:#D6E2DA;}
.card-media{aspect-ratio:16/10;overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:17px;line-height:1.5;}
.card-title a{color:var(--ink);}
.card-title a:hover{color:var(--brand);}
.card-text{font-size:14px;color:var(--muted);line-height:1.7;margin:0;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--soft);font-family:var(--font-num);
  margin-top:auto;padding-top:6px;
}
.back-row{margin-top:26px;}

/* ---------- 侧栏 ---------- */
.side-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:22px 22px 24px;
}
.side-title{
  font-size:15px;font-weight:700;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-title i{color:var(--accent);}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 10px;border-radius:var(--r-btn);font-size:14px;color:var(--muted);
}
.side-list a:hover{background:var(--brand-soft);color:var(--brand);}
.side-list a i{font-size:11px;color:var(--soft);}
.side-cta{background:var(--deep);border-color:var(--deep);color:rgba(255,255,255,.82);}
.side-cta .side-title{color:#fff;}
.side-cta p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.72);}
.side-cta .btn{margin-top:6px;width:100%;}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--deep);color:#fff;padding:64px 0;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-band h2{font-size:28px;margin-bottom:10px;}
.cta-band p{margin:0;color:rgba(255,255,255,.72);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.5);}

/* ---------- 页脚 ---------- */
.site-footer{background:#111917;color:rgba(255,255,255,.72);padding:58px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.42);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);margin:0;max-width:330px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62);}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.45);font-family:var(--font-num);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:26px;z-index:50;
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 20px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  box-shadow:var(--sh-lg);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .35s ease,transform .35s ease,visibility .35s ease,background-color .25s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--accent);color:#fff;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .layout .side-col{flex:0 0 280px;max-width:280px;}
  .article-title{font-size:34px;}
}
@media screen and (max-width:991px){
  :root{--sp-sec:56px;}
  .container{padding:0 24px;}
  .nav-panel{flex-wrap:wrap;}
  .nav-toggle{display:flex;}
  .nav-links{
    display:none;width:100%;margin:12px 0 0;flex-direction:column;gap:6px;
    border-top:1px solid var(--line);padding-top:12px;
  }
  .nav-links.is-open{display:flex;}
  .nav-item{width:100%;justify-content:flex-start;font-size:15px;padding:11px 13px;}
  .nav-actions .btn-sm{display:none;}
  .layout{flex-direction:column;}
  .layout .side-col{position:static;flex:1 1 auto;max-width:100%;width:100%;}
  .article-title{font-size:30px;}
  .head-cover{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .card-grid-3{grid-template-columns:repeat(2,1fr);}
  .cta-band h2{font-size:24px;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .site-header{padding:8px 0;}
  .nav-panel{padding:10px 12px;gap:10px;}
  .logo-text{font-size:14px;}
  .article-title{font-size:25px;}
  .head-body{padding:22px 20px 24px;}
  .head-cover{aspect-ratio:4/3;}
  .paper{padding:22px 18px;}
  .article-body{font-size:16px;line-height:1.88;}
  .article-body h2{font-size:21px;}
  .card-grid-3{grid-template-columns:1fr;}
  .crumb{font-size:12px;}
  .cta-band{padding:48px 0;}
  .cta-band h2{font-size:21px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:22px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .float-cta{
    right:16px;bottom:18px;width:52px;height:52px;padding:0;gap:0;
    justify-content:center;font-size:0;border-radius:50%;
  }
  .float-cta i{font-size:20px;}
}
@media screen and (max-width:519px){
  .article-title{font-size:22px;}
  .article-meta{font-size:12px;gap:8px 12px;}
  .footer-grid{grid-template-columns:1fr;}
}

/* roulang page: category1 */
:root{
  --brand:#1F4A3F;
  --brand-dark:#18392F;
  --brand-deep:#16211D;
  --amber:#C9873A;
  --brick:#A8452F;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --text:#1B211F;
  --text-2:#5A625E;
  --text-3:#8A928E;
  --line:#E4DED2;
  --shadow-s:0 2px 6px rgba(20,30,26,.06);
  --shadow-l:0 10px 28px rgba(20,30,26,.12);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 32px;}
.section{padding:72px 0;}
.section-tight{padding:48px 0;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:14px 0;
  background:rgba(247,244,238,.92);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid rgba(228,222,210,.7);
}
.nav-card{
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-s);
  padding:12px 16px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:#fff;border-radius:12px;
  font-weight:800;letter-spacing:.5px;font-size:15px;
  font-family:"Inter","Helvetica Neue",Arial,sans-serif;
}
.logo-text{display:flex;flex-direction:column;font-weight:800;font-size:16px;line-height:1.25;letter-spacing:.2px;}
.logo-sub{font-size:11px;font-weight:600;color:var(--text-3);letter-spacing:1.4px;text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-left:auto;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--text-2);
  background:#FAF8F3;border:1px solid transparent;
  transition:all .25s ease;
}
.nav-dot{width:6px;height:6px;border-radius:50%;background:var(--line);transition:background .25s ease;}
.nav-item:hover{background:#EDF3F0;color:var(--brand);border-color:#D8E5DF;}
.nav-item:hover .nav-dot{background:var(--amber);}
.nav-item.is-active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 6px 16px rgba(31,74,63,.24);}
.nav-item.is-active .nav-dot{background:var(--amber);}
.nav-cta{
  flex:0 0 auto;margin-left:14px;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;
  padding:11px 18px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:700;
  transition:all .25s ease;
}
.nav-cta:hover{background:var(--brand-dark);transform:translateY(-1px);}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#FAF8F3;color:var(--brand);font-size:17px;cursor:pointer;
  transition:all .25s ease;
}
.nav-toggle:hover{background:#EDF3F0;}
.mobile-panel{display:none;padding-top:12px;}
.mobile-panel.is-open{display:block;}
.mobile-panel .nav-links{flex-direction:column;align-items:stretch;margin:0;}
.mobile-panel .nav-item{justify-content:flex-start;padding:12px 14px;background:#fff;border-color:var(--line);}
.mobile-panel .nav-cta{margin:12px 0 0;justify-content:center;}

/* ===== 面包屑 ===== */
.breadcrumb{padding:22px 0 0;font-size:13.5px;color:var(--text-3);}
.breadcrumb a{color:var(--text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{margin:0 8px;color:var(--line);}
.breadcrumb .now{color:var(--brand);font-weight:600;}

/* ===== Hero ===== */
.hero{padding:26px 0 0;}
.hero-inner{
  position:relative;overflow:hidden;
  border-radius:20px;
  background-image:linear-gradient(105deg,rgba(15,28,24,.94) 0%,rgba(22,33,29,.78) 48%,rgba(22,33,29,.42) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  color:#fff;
  padding:64px 56px 56px;
  box-shadow:var(--shadow-l);
}
.hero-inner::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:260px;height:260px;
  border:1px solid rgba(201,135,58,.32);border-radius:28px;transform:rotate(12deg);
  pointer-events:none;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  background:rgba(201,135,58,.18);border:1px solid rgba(201,135,58,.5);
  color:#F0D4A8;font-size:12.5px;font-weight:700;letter-spacing:1.6px;
  padding:7px 14px;border-radius:var(--r-pill);margin-bottom:22px;
}
.eyebrow i{font-size:12px;}
.hero h1{font-size:40px;letter-spacing:.5px;max-width:820px;}
.hero h1 em{font-style:normal;color:#F0C177;}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);max-width:660px;}
.btn-group{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:all .25s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(31,74,63,.28);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);}
.hero .btn-primary{background:var(--amber);color:#231708;box-shadow:0 10px 24px rgba(201,135,58,.3);}
.hero .btn-primary:hover{background:#D9973F;}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-ghost:hover{background:#fff;color:var(--brand);border-color:#fff;}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand);color:#fff;}
.btn:focus-visible{outline:2px solid var(--amber);outline-offset:3px;}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14);}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:600;letter-spacing:.4px;
  padding:7px 13px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.9);
}
.badge i{color:var(--amber);font-size:11px;}

/* ===== 通用板块标题 ===== */
.section-head{max-width:760px;margin-bottom:40px;}
.section-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:1.8px;
  color:var(--brick);background:rgba(168,69,47,.09);
  padding:6px 12px;border-radius:var(--r-pill);margin-bottom:14px;
}
.section-title{font-size:28px;letter-spacing:.3px;}
.section-desc{margin-top:14px;color:var(--text-2);font-size:16px;}

/* ===== 图文交错 ===== */
.zz-row{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  padding:36px 0;
  border-top:1px solid var(--line);
}
.zz-row:first-of-type{border-top:none;padding-top:0;}
.zz-media{position:relative;overflow:hidden;border-radius:var(--r-card);box-shadow:var(--shadow-s);}
.zz-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.zz-media:hover img{transform:scale(1.03);}
.zz-index{
  position:absolute;left:16px;top:16px;
  background:rgba(22,33,29,.82);color:#fff;
  font-family:"Inter","Helvetica Neue",Arial,sans-serif;
  font-size:12.5px;font-weight:700;letter-spacing:1.5px;
  padding:6px 12px;border-radius:var(--r-pill);
}
.zz-row.reverse .zz-media{order:2;}
.zz-row.reverse .zz-body{order:1;}
.zz-body h3{font-size:22px;margin-bottom:14px;}
.zz-body p{color:var(--text-2);font-size:16px;}
.zz-points{margin-top:20px;display:grid;gap:10px;}
.zz-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--text);background:#fff;
  border:1px solid var(--line);border-radius:10px;padding:11px 14px;
  transition:all .25s ease;
}
.zz-points li:hover{border-color:#CFE0D8;box-shadow:var(--shadow-s);transform:translateX(2px);}
.zz-points i{color:var(--amber);margin-top:5px;font-size:12px;}

/* ===== 数据条带 ===== */
.stats-band{background:var(--brand-deep);color:#fff;border-radius:20px;padding:44px 40px;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;}
.stat-item{border-left:2px solid rgba(201,135,58,.55);padding-left:20px;}
.stat-num{
  font-family:"Inter","Helvetica Neue",Arial,sans-serif;
  font-size:36px;font-weight:800;letter-spacing:-.5px;color:#F0C177;line-height:1.1;
}
.stat-label{display:block;margin-top:8px;font-size:15px;font-weight:600;}
.stat-note{display:block;margin-top:4px;font-size:13px;color:rgba(255,255,255,.6);line-height:1.7;}
.stats-quote{
  margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14);
  font-size:15.5px;color:rgba(255,255,255,.78);font-style:italic;line-height:1.85;
}
.stats-quote span{display:block;margin-top:10px;font-style:normal;font-size:13px;color:rgba(255,255,255,.5);}

/* ===== 步骤流程 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--shadow-s);
  transition:all .3s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-l);border-color:#CFE0D8;}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:rgba(31,74,63,.09);color:var(--brand);
  font-family:"Inter","Helvetica Neue",Arial,sans-serif;font-weight:800;font-size:14px;
  margin-bottom:16px;
}
.step-card h4{font-size:17px;margin-bottom:10px;}
.step-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ===== 适用场景卡 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.scene-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--shadow-s);transition:all .3s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-l);}
.scene-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(201,135,58,.12);color:var(--amber);font-size:17px;margin-bottom:16px;
}
.scene-card h4{font-size:17px;margin-bottom:10px;}
.scene-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ===== FAQ ===== */
.faq-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-s);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:none;cursor:pointer;text-align:left;
  padding:20px 24px;font-size:16.5px;font-weight:700;color:var(--text);
  transition:background .2s ease;
}
.faq-q:hover{background:#FAF8F3;}
.faq-q:focus-visible{outline:2px solid var(--amber);outline-offset:-3px;}
.faq-q i{color:var(--amber);font-size:14px;transition:transform .25s ease;flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
.faq-a p{padding:0 24px 22px;color:var(--text-2);font-size:15.5px;line-height:1.85;}
.faq-item.is-open .faq-a{max-height:340px;}

/* ===== CTA ===== */
.cta-band{
  background:linear-gradient(115deg,#16211D 0%,#1F4A3F 100%);
  border-radius:20px;padding:56px 48px;color:#fff;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border-radius:50%;background:rgba(201,135,58,.12);
}
.cta-band h2{font-size:28px;max-width:620px;}
.cta-band p{margin-top:16px;color:rgba(255,255,255,.78);font-size:16px;max-width:640px;}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;position:relative;z-index:2;}
.cta-form input{
  flex:1 1 280px;min-width:0;
  padding:14px 16px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);
  color:#fff;font-size:15px;transition:all .25s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.5);}
.cta-form input:focus{outline:none;border-color:var(--amber);background:rgba(255,255,255,.14);}
.cta-form .btn-primary{background:var(--amber);color:#231708;}
.cta-form .btn-primary:hover{background:#D9973F;}
.cta-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.55);}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  background:var(--brand);color:#fff;
  padding:13px 20px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:700;
  box-shadow:0 12px 30px rgba(20,30,26,.28);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .3s ease;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--brand-dark);transform:translateY(-2px);}
.float-cta i{color:var(--amber);}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;}
.site-footer .logo-text{color:#fff;}
.site-footer .logo-sub{color:rgba(255,255,255,.45);}
.site-footer .logo-mark{background:var(--amber);color:#231708;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.68);transition:color .2s ease;}
.footer-links a:hover{color:var(--amber);}
.footer-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.68);}
.footer-bottom a:hover{color:var(--amber);}

/* ===== 响应式 ===== */
@media screen and (max-width:1199px){
  .container{padding:0 24px;}
  .hero h1{font-size:34px;}
  .hero-inner{padding:52px 40px 46px;}
  .nav-links{gap:6px;}
  .nav-item{padding:8px 11px;font-size:13.5px;}
}
@media screen and (max-width:991px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .mobile-panel .nav-links,.mobile-panel .nav-cta{display:flex;}
  .mobile-panel .nav-cta{display:inline-flex;}
  .section{padding:56px 0;}
  .hero h1{font-size:30px;}
  .hero-inner{padding:44px 30px 38px;border-radius:16px;}
  .zz-row{grid-template-columns:1fr;gap:24px;padding:28px 0;}
  .zz-row.reverse .zz-media{order:1;}
  .zz-row.reverse .zz-body{order:2;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:22px;}
  .stats-band{padding:36px 28px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-title{font-size:22px;}
  .hero{padding:18px 0 0;}
  .hero h1{font-size:25px;letter-spacing:0;}
  .hero-sub{font-size:15.5px;}
  .hero-inner{padding:34px 20px 30px;}
  .logo-text{font-size:14px;}
  .logo-sub{letter-spacing:1px;}
  .btn{width:100%;justify-content:center;}
  .btn-group{gap:10px;}
  .badges{margin-top:26px;padding-top:20px;}
  .zz-body h3{font-size:19px;}
  .stats-grid{grid-template-columns:1fr;}
  .stat-item{border-left:none;border-top:2px solid rgba(201,135,58,.45);padding:14px 0 0;}
  .stat-num{font-size:30px;}
  .steps{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .cta-band{padding:38px 22px;border-radius:16px;}
  .cta-band h2{font-size:22px;}
  .faq-q{padding:17px 18px;font-size:15.5px;}
  .faq-a p{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .float-cta{padding:0;width:52px;height:52px;justify-content:center;right:16px;bottom:16px;gap:0;}
  .float-cta span{display:none;}
  .float-cta i{font-size:18px;}
}
@media screen and (max-width:519px){
  .footer-grid{grid-template-columns:1fr;}
  .hero h1{font-size:23px;}
}

/* roulang page: category2 */
:root{
  --brand:#1F4A3F;
  --brand-dark:#18392F;
  --brand-soft:#EDF3F0;
  --accent:#C9873A;
  --brick:#A8452F;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --dark:#16211D;
  --text:#1B211F;
  --muted:#5A625E;
  --weak:#8A928E;
  --line:#E4DED2;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 2px 6px rgba(20,30,26,.06);
  --shadow-lg:0 10px 28px rgba(20,30,26,.12);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease}
a:hover{color:var(--accent)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:72px 0}
.section--tight{padding:52px 0}
.section--paper{background:var(--paper)}
.section--white{background:#FCFAF6}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:14px 0 10px;
  background:rgba(247,244,238,.93);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(228,222,210,.7);
}
.nav-shell{
  position:relative;
  display:flex;align-items:center;gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:11px 16px;
}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.logo-mark{
  width:40px;height:40px;border-radius:11px;
  background:linear-gradient(150deg,var(--brand),#2C6353);
  color:#fff;display:grid;place-items:center;
  font:700 14px/1 var(--font-num);letter-spacing:.6px;
  box-shadow:0 4px 12px rgba(31,74,63,.26);
}
.logo-text{display:flex;flex-direction:column;font-size:15px;font-weight:700;line-height:1.25}
.logo-sub{font:500 10.5px/1.4 var(--font-num);letter-spacing:.16em;text-transform:uppercase;color:var(--weak)}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;flex-wrap:wrap;justify-content:center}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 12px;border-radius:9px;
  font-size:14px;color:var(--muted);
  background:#FBF9F5;border:1px solid transparent;
  transition:transform .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.nav-dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.45;flex:0 0 auto}
.nav-item:hover{background:var(--brand-soft);color:var(--brand);border-color:#D6E3DE;transform:translateY(-1px)}
.nav-item.is-active{background:var(--brand);color:#fff;box-shadow:0 5px 14px rgba(31,74,63,.24)}
.nav-item.is-active .nav-dot{opacity:.85}
.nav-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:9px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.nav-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(31,74,63,.26)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:#FBF9F5;color:var(--brand);font-size:16px;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .22s ease,background-color .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(31,74,63,.2)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(31,74,63,.28)}
.btn-outline{border-color:#CBD8D3;color:#fff;background:rgba(255,255,255,.08)}
.btn-outline:hover{border-color:#fff;background:#fff;color:var(--brand);transform:translateY(-1px)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.btn-amber{background:var(--accent);color:#fff}
.btn-amber:hover{background:#B4782F;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(201,135,58,.3)}
.btn[disabled],.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.btn-group{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- tags & badges ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.2px;
  background:var(--brand-soft);color:var(--brand);border:1px solid #DCE7E2;
}
.tag-amber{background:#FBF1E3;color:#96632A;border-color:#EFDDC4}
.tag-brick{background:#FAEDEA;color:var(--brick);border-color:#EFD6D0}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 13px;border-radius:999px;
  font-size:12.5px;color:rgba(255,255,255,.9);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(4px);
}
.badge i{color:var(--accent);font-size:12px}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;font-size:13.5px;color:var(--weak)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"›";color:#C4CBC7}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb strong{color:var(--text);font-weight:600}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;margin-top:16px;
  min-height:450px;border-radius:18px;overflow:hidden;
  display:flex;align-items:flex-end;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-lg);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(18,29,25,.92) 0%,rgba(20,33,28,.7) 48%,rgba(22,33,29,.22) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:52px 48px;max-width:760px;color:#fff}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font:600 12px/1 var(--font-num);letter-spacing:.22em;text-transform:uppercase;
  color:var(--accent);margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:2px}
.hero-title{font-size:40px;color:#fff;margin-bottom:16px}
.hero-brand{display:block;font-size:15px;font-weight:600;letter-spacing:.14em;color:var(--accent);margin-bottom:10px}
.hero-lead{font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.86);max-width:600px}
.hero-lead + .btn-group{margin-top:28px}

/* ---------- section head ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.sec-kicker{font:600 12px/1 var(--font-num);letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.sec-title{font-size:28px}
.sec-desc{margin-top:12px;color:var(--muted);max-width:640px;font-size:16px}
.sec-more{flex:0 0 auto;font-size:14.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:8px}
.sec-more:hover{color:var(--accent);gap:12px}

/* ---------- row list (顶图下的横向行卡) ---------- */
.row-list{display:grid;gap:20px}
.row-card{
  display:grid;grid-template-columns:290px minmax(0,1fr) 150px;
  gap:26px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.row-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#D8D0C0}
.row-thumb{border-radius:12px;overflow:hidden;aspect-ratio:16/10;background:#EDE9E0}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.row-card:hover .row-thumb img{transform:scale(1.03)}
.row-body{min-width:0}
.row-title{font-size:19px;margin:12px 0 8px}
.row-text{color:var(--muted);font-size:15.5px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-meta{display:flex;flex-wrap:wrap;gap:16px;margin-top:14px;font-size:13px;color:var(--weak)}
.row-meta span{display:inline-flex;align-items:center;gap:6px}
.row-side{text-align:right;border-left:1px dashed var(--line);padding-left:22px}
.row-date{font:700 20px/1 var(--font-num);color:var(--brand);letter-spacing:.5px}
.row-date small{display:block;font:500 12px/1.5 var(--font-num);color:var(--weak);letter-spacing:.08em;margin-top:6px}
.row-go{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:13.5px;font-weight:600;color:var(--brand)}
.row-card:hover .row-go{color:var(--accent)}

/* ---------- stat band ---------- */
.stat-band{
  background:var(--dark);border-radius:18px;padding:44px 40px;color:#fff;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;
  box-shadow:var(--shadow-lg);
}
.stat-item{padding-right:20px;border-right:1px solid rgba(255,255,255,.1)}
.stat-item:last-child{border-right:0;padding-right:0}
.stat-num{font:700 38px/1 var(--font-num);color:var(--accent);letter-spacing:.5px}
.stat-num span{font-size:18px;margin-left:2px}
.stat-label{margin-top:10px;font-size:14px;color:rgba(255,255,255,.78);line-height:1.7}
.stat-note{margin-top:36px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12);display:flex;gap:18px;align-items:flex-start}
.stat-note i{color:var(--accent);font-size:18px;margin-top:4px}
.stat-note p{font-size:15px;color:rgba(255,255,255,.74);line-height:1.8}
.stat-note strong{color:#fff}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.step-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px 28px;box-shadow:var(--shadow);
  transition:transform .28s ease,box-shadow .28s ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.step-num{font:700 34px/1 var(--font-num);color:#E6DFD1}
.step-card h3{font-size:18px;margin:16px 0 10px}
.step-card p{color:var(--muted);font-size:15.5px;line-height:1.8}
.step-card .step-fig{
  position:absolute;top:24px;right:24px;width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);font-size:17px;
}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.split-media{border-radius:16px;overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:4/3}
.split-media img{width:100%;height:100%;object-fit:cover}
.check-list{margin-top:22px;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--muted);line-height:1.8}
.check-list i{color:var(--brand);margin-top:6px;font-size:13px}
.check-list strong{color:var(--text)}

/* ---------- faq ---------- */
.faq-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px 26px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 2px;font-size:16.5px;font-weight:700;text-align:left;color:var(--text);
  transition:color .22s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);
  font-size:12px;transition:transform .22s ease,background-color .22s ease,color .22s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a p{padding:0 2px 22px;color:var(--muted);font-size:15.5px;line-height:1.85;max-width:860px}
.faq-item.is-open .faq-a{max-height:340px}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--brand) 0%,var(--dark) 100%);
  border-radius:18px;padding:54px 48px;color:#fff;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:36px;align-items:center;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:28px;color:#fff}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.82);max-width:620px;font-size:16px}
.cta-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#fff;margin-top:72px;padding:60px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-mark{background:linear-gradient(150deg,var(--accent),#A9682A)}
.footer-brand p{color:rgba(255,255,255,.66);font-size:14.5px;line-height:1.85;max-width:340px}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.06em;margin-bottom:16px;color:#fff}
.footer-links{display:grid;gap:11px}
.footer-links a{color:rgba(255,255,255,.68);font-size:14.5px}
.footer-links a:hover{color:var(--accent)}
.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,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:55;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 21px;border-radius:999px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 14px 30px rgba(20,30,26,.3);
  opacity:0;pointer-events:none;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,background-color .22s ease;
}
.float-cta:hover{background:var(--brand-dark);color:#fff}
.float-cta.is-show{opacity:1;pointer-events:auto;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .row-card{grid-template-columns:250px minmax(0,1fr) 130px;gap:22px}
  .hero-title{font-size:34px}
  .stat-band{padding:38px 30px;gap:22px}
  .stat-num{font-size:32px}
}
@media (max-width:991px){
  body{font-size:16px}
  .section{padding:54px 0}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-links{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:none;flex-direction:column;align-items:stretch;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    box-shadow:var(--shadow-lg);padding:12px;
  }
  .site-header.is-open .nav-links{display:flex}
  .nav-item{width:100%;justify-content:flex-start;font-size:15px;padding:11px 13px}
  .cat-hero{min-height:380px}
  .cat-hero-inner{padding:40px 32px}
  .hero-title{font-size:30px}
  .row-card{grid-template-columns:230px minmax(0,1fr)}
  .row-side{display:none}
  .split{grid-template-columns:1fr;gap:28px}
  .steps{grid-template-columns:1fr}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .stat-item{border-right:0;padding-right:0}
  .cta-band{grid-template-columns:1fr;padding:40px 30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:44px 0}
  .logo-text{font-size:14px}
  .cat-hero{border-radius:14px;min-height:340px;margin-top:12px}
  .cat-hero-inner{padding:30px 22px}
  .hero-title{font-size:26px}
  .hero-lead{font-size:15px}
  .sec-title{font-size:22px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:24px}
  .row-card{grid-template-columns:1fr;gap:16px;padding:16px}
  .row-thumb{aspect-ratio:16/9}
  .btn{width:100%}
  .stat-band{padding:30px 22px;grid-template-columns:1fr}
  .stat-num{font-size:30px}
  .stat-note{flex-direction:column;gap:10px}
  .faq-wrap{padding:4px 18px}
  .faq-q{font-size:15.5px;padding:17px 0}
  .faq-item.is-open .faq-a{max-height:460px}
  .cta-band{border-radius:14px;padding:32px 22px}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .float-cta{right:16px;bottom:16px;width:52px;height:52px;padding:0;justify-content:center;border-radius:50%}
  .float-cta span{display:none}
}
@media (max-width:519px){
  .breadcrumbs{font-size:12.5px}
  .hero-title{font-size:23px}
  .badge{font-size:12px;padding:6px 11px}
  .row-title{font-size:17px}
}

/* roulang page: category3 */
:root{
  --brand:#1F4A3F;
  --brand-deep:#18392F;
  --brand-ink:#16211D;
  --amber:#C9873A;
  --brick:#A8452F;
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --soft:#FBFAF7;
  --text:#1B211F;
  --text-2:#5A625E;
  --text-3:#8A928E;
  --line:#E4DED2;
  --radius:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow:0 2px 6px rgba(20,30,26,.06);
  --shadow-hi:0 10px 28px rgba(20,30,26,.12);
  --container:1200px;
  --gap:24px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:104px;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--amber);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text);letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
  width:100%;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:12px 0;
  background:rgba(247,244,238,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.header-card{
  position:relative;
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:12px 16px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text);
}
.logo:hover{color:var(--text);}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:11px;
  background:var(--brand);
  color:#fff;
  font-family:"Inter","Helvetica Neue",Arial,sans-serif;
  font-size:14px;
  font-weight:700;
  letter-spacing:.5px;
  flex:0 0 auto;
}
.logo-text{
  display:flex;
  flex-direction:column;
  font-size:15px;
  font-weight:700;
  line-height:1.25;
  color:var(--text);
  white-space:nowrap;
}
.logo-sub{
  font-family:"Inter","Helvetica Neue",Arial,sans-serif;
  font-size:11px;
  font-weight:500;
  color:var(--text-3);
  letter-spacing:1.4px;
  text-transform:uppercase;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
  flex-wrap:wrap;
}
.nav-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 12px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  background:var(--soft);
  font-size:14px;
  font-weight:500;
  color:var(--text-2);
  white-space:nowrap;
  transition:all .22s ease;
}
.nav-item .nav-dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:#C9CFC9;
  transition:background-color .22s ease;
}
.nav-item:hover{
  background:#EAF1ED;
  color:var(--brand);
  border-color:#D5E2DB;
  transform:translateY(-1px);
}
.nav-item:hover .nav-dot{background:var(--brand);}
.nav-item.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.nav-item.is-active .nav-dot{background:var(--amber);}
.header-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:var(--soft);
  color:var(--brand);
  font-size:16px;
  align-items:center;
  justify-content:center;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:all .24s ease;
  cursor:pointer;
}
.btn-primary{
  background:var(--brand);
  color:#fff;
}
.btn-primary:hover{
  background:var(--brand-deep);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-hi);
}
.btn-outline{
  background:transparent;
  border-color:var(--brand);
  color:var(--brand);
}
.btn-outline:hover{
  background:var(--brand);
  color:#fff;
  transform:translateY(-1px);
}
.btn-amber{
  background:var(--amber);
  color:#fff;
}
.btn-amber:hover{
  background:#B77930;
  color:#fff;
  transform:translateY(-1px);
}
.btn-light{
  background:#fff;
  color:var(--brand);
}
.btn-light:hover{
  background:#F0EBE1;
  color:var(--brand-deep);
  transform:translateY(-1px);
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed;}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  border-bottom:1px solid rgba(31,74,63,.28);
  padding-bottom:2px;
}
.text-link:hover{color:var(--amber);border-color:rgba(201,135,58,.5);}

/* ---------- 面包屑 ---------- */
.crumb-bar{
  background:var(--paper);
  padding:18px 0 0;
}
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:#C4CCC7;}
.crumbs .current{color:var(--brand);font-weight:600;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  margin-top:18px;
  border-radius:18px;
  overflow:hidden;
  background-image:linear-gradient(115deg,rgba(22,33,29,.92) 0%,rgba(31,74,63,.86) 46%,rgba(31,74,63,.55) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  box-shadow:var(--shadow-hi);
}
.page-hero .container{
  position:relative;
  z-index:2;
  padding-top:64px;
  padding-bottom:60px;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:20px;
}
.hero-badges span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 13px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.1);
  font-size:12px;
  color:#EDEFEA;
  letter-spacing:.3px;
}
.page-hero h1{
  color:#fff;
  font-size:40px;
  line-height:1.22;
  max-width:820px;
}
.page-hero .hero-sub{
  margin-top:16px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
  max-width:660px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:36px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.18);
}
.hero-facts .fact-strong{
  font-family:"Inter","Helvetica Neue",Arial,sans-serif;
  font-size:24px;
  font-weight:700;
  color:#fff;
  line-height:1.2;
}
.hero-facts .fact-label{
  font-size:13px;
  color:rgba(255,255,255,.7);
  margin-top:2px;
}

/* ---------- 板块 ---------- */
.section{padding:72px 0;}
.section.tight{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:34px;
}
.section-head h2{font-size:28px;}
.section-desc{
  margin-top:10px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  max-width:720px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:1.6px;
  text-transform:uppercase;
  color:var(--amber);
  margin-bottom:12px;
}

/* ---------- 主体布局 ---------- */
.layout-grid{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.side-col{
  position:sticky;
  top:104px;
  display:grid;
  gap:20px;
}
.toc-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:22px 20px;
}
.toc-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:1.2px;
  color:var(--text-3);
  text-transform:uppercase;
  margin-bottom:14px;
}
.toc-link{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:500;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:all .2s ease;
}
.toc-link i{
  font-size:11px;
  color:#C0C8C3;
}
.toc-link:hover{
  background:var(--soft);
  color:var(--brand);
  border-left-color:var(--amber);
}
.toc-link:hover i{color:var(--amber);}
.side-card{
  background:var(--brand-ink);
  color:#fff;
  border-radius:var(--radius);
  padding:24px 20px;
  box-shadow:var(--shadow-hi);
}
.side-card h3{
  color:#fff;
  font-size:17px;
  margin-bottom:10px;
}
.side-card p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.74);
  margin-bottom:18px;
}
.side-card .btn{width:100%;}

.lead-text{
  font-size:16px;
  line-height:1.95;
  color:var(--text-2);
  background:var(--card);
  border:1px solid var(--line);
  border-left:3px solid var(--amber);
  border-radius:var(--radius);
  padding:22px 24px;
  box-shadow:var(--shadow);
  margin-bottom:30px;
}

/* ---------- 功能卡（双列） ---------- */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.feature-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .32s ease,box-shadow .32s ease,border-color .32s ease;
}
.feature-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hi);
  border-color:#D6DFD9;
}
.feature-thumb{
  display:block;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#EDEAE3;
}
.feature-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.feature-card:hover .feature-thumb img{transform:scale(1.03);}
.feature-body{
  padding:22px 22px 24px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.feature-body h3{font-size:18px;line-height:1.45;}
.feature-body p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--text-2);
  flex:1;
}
.feature-body .text-link{align-self:flex-start;margin-top:4px;}

.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.3px;
  background:#EEF3F0;
  color:var(--brand);
  align-self:flex-start;
}
.tag.amber{background:#FBF1E3;color:#8A5A1D;}
.tag.brick{background:#F8EBE7;color:var(--brick);}

/* ---------- 场景条带 ---------- */
.scene-strip{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.scene-item{
  display:grid;
  grid-template-columns:56px minmax(0,1fr);
  gap:18px;
  padding:24px 26px;
  border-bottom:1px solid var(--line);
  transition:background-color .24s ease;
}
.scene-item:last-child{border-bottom:none;}
.scene-item:hover{background:var(--soft);}
.scene-icon{
  width:48px;
  height:48px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#EEF3F0;
  color:var(--brand);
  font-size:18px;
}
.scene-item h3{font-size:17px;margin-bottom:6px;}
.scene-item p{font-size:14.5px;line-height:1.75;color:var(--text-2);}

/* ---------- 流程步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  counter-reset:step;
}
.step-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:26px 22px 24px;
  transition:transform .3s ease,box-shadow .3s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hi);}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-family:"Inter","Helvetica Neue",Arial,sans-serif;
  font-size:14px;
  font-weight:700;
  margin-bottom:14px;
}
.step-card h3{font-size:16.5px;margin-bottom:8px;}
.step-card p{font-size:14px;line-height:1.75;color:var(--text-2);}
.step-line{
  height:2px;
  background:linear-gradient(90deg,var(--amber),rgba(201,135,58,0));
  border-radius:2px;
  margin-top:16px;
}

/* ---------- FAQ ---------- */
.faq-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  text-align:left;
  padding:20px 24px;
  font-size:16.5px;
  font-weight:700;
  color:var(--text);
  transition:background-color .22s ease,color .22s ease;
}
.faq-q:hover{background:var(--soft);color:var(--brand);}
.faq-q i{
  flex:0 0 auto;
  color:var(--amber);
  font-size:14px;
  transition:transform .2s ease;
}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-item.is-open .faq-q i{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .22s ease;
}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#16211D 0%,#1F4A3F 62%,#24564A 100%);
  border-radius:18px;
  padding:56px 48px;
  color:#fff;
  box-shadow:var(--shadow-hi);
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:36px;
  align-items:center;
}
.cta-band h2{color:#fff;font-size:28px;}
.cta-band p{
  margin-top:14px;
  font-size:15.5px;
  line-height:1.85;
  color:rgba(255,255,255,.76);
  max-width:560px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:26px;
}
.cta-note{
  margin-top:16px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.cta-panel{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);
  padding:24px;
}
.cta-panel .panel-row{
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 0;
  border-bottom:1px dashed rgba(255,255,255,.16);
  font-size:14px;
  color:rgba(255,255,255,.84);
}
.cta-panel .panel-row:last-child{border-bottom:none;}
.cta-panel .panel-row i{color:var(--amber);font-size:13px;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:28px;
  bottom:28px;
  z-index:50;
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:13px 22px;
  border-radius:999px;
  background:var(--brand);
  color:#fff;
  font-size:14px;
  font-weight:600;
  box-shadow:0 12px 26px rgba(20,30,26,.24);
  opacity:0;
  transform:translateY(10px);
  pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,background-color .22s ease;
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--brand-deep);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;
  background:var(--brand-ink);
  color:rgba(255,255,255,.72);
  padding:60px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand .logo{margin-bottom:16px;color:#fff;}
.footer-brand .logo:hover{color:#fff;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.45);}
.footer-brand .logo-mark{background:var(--amber);color:#fff;}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.6);
  max-width:340px;
}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.4px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.66);
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:var(--amber);transform:translateX(2px);}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:var(--amber);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .container{padding:0 24px;}
  .page-hero h1{font-size:32px;}
  .section{padding:60px 0;}
  .layout-grid{grid-template-columns:220px minmax(0,1fr);gap:24px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{padding:48px 36px;}
}

@media screen and (max-width:991px){
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .header-cta{display:none;}
  .nav-links{
    display:none;
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:12px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow-hi);
    margin-left:0;
    z-index:70;
  }
  .nav-links.is-open{display:flex;}
  .nav-item{justify-content:flex-start;white-space:normal;}
  .layout-grid{grid-template-columns:minmax(0,1fr);}
  .side-col{position:static;}
  .toc-card .toc-body{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;}
  .page-hero h1{font-size:30px;}
  .page-hero .container{padding-top:52px;padding-bottom:48px;}
  .cta-band{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
}

@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .logo-text{font-size:13.5px;white-space:normal;}
  .logo-sub{font-size:10px;}
  .page-hero{border-radius:14px;}
  .page-hero .container{padding-top:42px;padding-bottom:40px;}
  .page-hero h1{font-size:26px;}
  .page-hero .hero-sub{font-size:15px;}
  .hero-facts{gap:20px;margin-top:26px;padding-top:20px;}
  .hero-facts .fact-strong{font-size:20px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:22px;}
  .feature-grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .scene-item{grid-template-columns:44px minmax(0,1fr);padding:20px 18px;gap:14px;}
  .scene-icon{width:40px;height:40px;font-size:16px;}
  .steps{grid-template-columns:minmax(0,1fr);gap:16px;}
  .faq-q{padding:16px 18px;font-size:15.5px;}
  .faq-a p{padding:0 18px 18px;font-size:14.5px;}
  .cta-band{padding:36px 20px;border-radius:14px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .footer-brand{grid-column:1 / -1;}
  .float-cta{
    right:16px;
    bottom:16px;
    width:52px;
    height:52px;
    padding:0;
    border-radius:50%;
    justify-content:center;
  }
  .float-cta span{display:none;}
  .float-cta i{font-size:18px;}
  .toc-card .toc-body{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

@media screen and (max-width:520px){
  .page-hero h1{font-size:23px;}
  .hero-badges span{font-size:11px;padding:5px 10px;}
  .feature-body{padding:18px 18px 20px;}
  .side-card{padding:20px 18px;}
}

/* roulang page: category4 */
:root{
  --paper:#F7F4EE;
  --card:#FFFFFF;
  --dark:#16211D;
  --brand:#1F4A3F;
  --brand-deep:#18392F;
  --brand-soft:rgba(31,74,63,.08);
  --amber:#C9873A;
  --brick:#A8452F;
  --ink:#1B211F;
  --muted:#5A625E;
  --weak:#8A928E;
  --line:#E4DED2;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 2px 6px rgba(20,30,26,.06);
  --shadow-hover:0 10px 28px rgba(20,30,26,.12);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--amber);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--ink);}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section-head .eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--amber);
  font-family:var(--font-num);
  font-weight:600;
  margin-bottom:10px;
}
.section-head h2{font-size:28px;}
.section-head p{color:var(--muted);font-size:15px;max-width:640px;margin:10px 0 0;}
.link-more{font-size:14px;font-weight:600;white-space:nowrap;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:14px 0;
  background:rgba(247,244,238,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(228,222,210,.7);
}
.nav-shell{
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:12px 16px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--ink);
}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:40px;height:40px;
  border-radius:12px;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);
  font-weight:700;
  font-size:15px;
  letter-spacing:.02em;
  flex-shrink:0;
}
.logo-text{
  display:flex;
  flex-direction:column;
  font-size:15px;
  font-weight:700;
  line-height:1.25;
  color:var(--ink);
}
.logo-sub{
  font-size:11px;
  font-weight:500;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--weak);
  font-family:var(--font-num);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
  overflow-x:auto;
  scrollbar-width:none;
  padding:2px;
}
.nav-links::-webkit-scrollbar{display:none;}
.nav-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 12px;
  border-radius:var(--r-btn);
  font-size:14px;
  font-weight:500;
  color:var(--muted);
  background:var(--paper);
  border:1px solid transparent;
  white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.nav-item:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px);}
.nav-item.is-active{
  background:var(--brand);
  color:#fff;
  border-color:var(--brand);
}
.nav-item.is-active .nav-dot{background:var(--amber);}
.nav-dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--line);
  flex-shrink:0;
  transition:background .22s ease;
}
.nav-item:hover .nav-dot{background:var(--amber);}
.nav-cta{flex-shrink:0;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:var(--paper);
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
  text-align:center;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 14px rgba(31,74,63,.22);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(31,74,63,.28);}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-outline:hover{background:var(--brand);color:#fff;transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand);}
.btn-light:hover{background:var(--amber);color:#fff;transform:translateY(-1px);}
.btn-amber{background:var(--amber);color:#fff;}
.btn-amber:hover{background:#b0722c;color:#fff;transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{
  background:var(--card);
  border-bottom:1px solid var(--line);
  padding:12px 0;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--weak);
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line);font-size:12px;}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--dark);
  padding:78px 0 68px;
}
.page-hero .hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.34;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(22,33,29,.94) 0%,rgba(22,33,29,.78) 46%,rgba(31,74,63,.5) 100%);
}
.hero-inner{position:relative;z-index:2;}
.hero-inner .hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(201,135,58,.18);
  border:1px solid rgba(201,135,58,.45);
  color:#F0D3AC;
  font-size:12px;
  letter-spacing:.06em;
  font-family:var(--font-num);
  font-weight:600;
  margin-bottom:18px;
}
.hero-inner h1{
  color:#fff;
  font-size:40px;
  max-width:880px;
  margin-bottom:16px;
}
.hero-lead{
  color:rgba(255,255,255,.82);
  font-size:17px;
  line-height:1.85;
  max-width:720px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.hero-facts li{
  padding:8px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);
  color:#E8E4DA;
  font-size:13px;
}

/* ---------- cards ---------- */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:24px;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.card-hover:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:#D8D0C1;
}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--muted);line-height:1.75;}
.card-icon{
  width:44px;height:44px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);
  font-weight:700;
  font-size:15px;
  margin-bottom:16px;
}
.card-media{
  border-radius:var(--r-img);
  overflow:hidden;
  aspect-ratio:16/10;
  margin-bottom:18px;
  background:var(--paper);
}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.card-hover:hover .card-media img{transform:scale(1.03);}
.tag{
  display:inline-block;
  padding:4px 11px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  background:var(--brand-soft);
  color:var(--brand);
  line-height:1.6;
}
.tag-amber{background:rgba(201,135,58,.14);color:#9A6524;}
.tag-brick{background:rgba(168,69,47,.12);color:var(--brick);}
.card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--weak);
}
.card-foot .more{color:var(--brand);font-weight:600;}

/* ---------- pillar grid ---------- */
.pillar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}

/* ---------- timeline layout ---------- */
.split-grid{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.timeline{position:relative;}
.tl-item{
  position:relative;
  padding-left:66px;
  padding-bottom:26px;
}
.tl-item::before{
  content:"";
  position:absolute;
  left:20px;
  top:44px;
  bottom:-4px;
  width:2px;
  background:var(--line);
}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-num{
  position:absolute;
  left:0;
  top:0;
  width:42px;height:42px;
  border-radius:50%;
  background:var(--card);
  border:2px solid var(--brand);
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);
  font-weight:700;
  font-size:15px;
  box-shadow:var(--shadow);
}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:22px 24px;
  transition:transform .3s ease,box-shadow .3s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.tl-card h3{font-size:18px;margin-bottom:8px;}
.tl-card p{font-size:14.5px;color:var(--muted);line-height:1.78;}
.tl-points{
  display:grid;
  gap:8px;
  margin-top:14px;
  padding-top:14px;
  border-top:1px dashed var(--line);
}
.tl-points li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}
.tl-points li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--amber);
}
.side-stack{display:grid;gap:20px;position:sticky;top:96px;}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:22px;
}
.side-card h4{font-size:16px;margin-bottom:14px;}
.side-links{display:grid;gap:8px;}
.side-links a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:11px 13px;
  border-radius:var(--r-btn);
  background:var(--paper);
  color:var(--muted);
  font-size:14px;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.side-links a:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px);}
.side-links a .dot{width:6px;height:6px;border-radius:50%;background:var(--amber);flex-shrink:0;}
.side-cta{
  background:linear-gradient(150deg,var(--brand),var(--brand-deep));
  border:none;
  color:#fff;
}
.side-cta h4{color:#fff;}
.side-cta p{font-size:14px;color:rgba(255,255,255,.78);line-height:1.75;margin-bottom:16px;}

/* ---------- scene cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.scene-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .3s ease,box-shadow .3s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.scene-card .card-media{border-radius:0;margin-bottom:0;aspect-ratio:16/9;}
.scene-body{padding:22px 24px 24px;}
.scene-body h3{font-size:18px;margin-bottom:10px;}
.scene-body p{font-size:14.5px;color:var(--muted);line-height:1.75;}

/* ---------- stat band ---------- */
.stat-band{
  background:var(--dark);
  color:#fff;
  padding:64px 0;
}
.stat-band h2{color:#fff;font-size:26px;margin-bottom:12px;}
.stat-band .band-lead{color:rgba(255,255,255,.72);font-size:15px;max-width:620px;margin-bottom:36px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.stat-item{
  padding:22px;
  border-radius:var(--r-card);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
}
.stat-num{
  font-family:var(--font-num);
  font-size:34px;
  font-weight:700;
  color:var(--amber);
  line-height:1.2;
  margin-bottom:6px;
}
.stat-label{font-size:14px;color:rgba(255,255,255,.74);}

/* ---------- faq ---------- */
.faq-list{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:transparent;
  border:none;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  transition:background .22s ease,color .22s ease;
}
.faq-q:hover{background:var(--paper);color:var(--brand);}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-icon{
  position:relative;
  width:18px;height:18px;
  flex-shrink:0;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.faq-a-inner{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-deep) 62%,#12261F 100%);
  color:#fff;
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:340px;height:340px;
  border-radius:50%;
  background:rgba(201,135,58,.14);
}
.cta-inner{position:relative;z-index:2;max-width:760px;}
.cta-inner h2{color:#fff;font-size:30px;margin-bottom:14px;}
.cta-inner p{color:rgba(255,255,255,.8);font-size:16px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:16px;}
.cta-note{font-size:13px;color:rgba(255,255,255,.6);}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;
  right:24px;
  bottom:28px;
  z-index:60;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 22px;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:#fff;
  font-size:14px;
  font-weight:600;
  box-shadow:0 10px 28px rgba(20,30,26,.28);
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background .25s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--brand-deep);color:#fff;}
.float-cta .float-cta-icon{
  width:20px;height:20px;
  border-radius:50%;
  background:var(--amber);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;
  line-height:1;
  flex-shrink:0;
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.45);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px;}
.footer-title{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-links{display:grid;gap:10px;}
.footer-links a{
  color:rgba(255,255,255,.7);
  font-size:14px;
  transition:color .22s ease,transform .22s ease;
  display:inline-block;
}
.footer-links a:hover{color:var(--amber);transform:translateX(2px);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding-top:24px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.66);}
.footer-bottom a:hover{color:var(--amber);}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .container{padding:0 24px;}
  .nav-item{font-size:13px;padding:7px 10px;}
  .hero-inner h1{font-size:32px;}
  .section{padding:60px 0;}
  .pillar-grid{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:991px){
  .nav-toggle{display:flex;}
  .nav-shell{flex-wrap:wrap;}
  .nav-links{
    display:none;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:12px 0 4px;
    border-top:1px solid var(--line);
    margin-top:10px;
    overflow:visible;
  }
  .nav-links.is-open{display:flex;}
  .nav-item{width:100%;justify-content:flex-start;font-size:14.5px;padding:11px 14px;}
  .nav-cta{display:none;}
  .split-grid{grid-template-columns:1fr;gap:28px;}
  .side-stack{position:static;}
  .scene-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .page-hero{padding:60px 0 54px;}
  .hero-inner h1{font-size:28px;}
  .section{padding:52px 0;}
  .section-head h2{font-size:24px;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .nav-shell{padding:10px 12px;}
  .logo-text{font-size:14px;}
  .logo-sub{font-size:10px;}
  .page-hero{padding:48px 0 44px;}
  .hero-inner h1{font-size:24px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .section{padding:44px 0;}
  .section-head{margin-bottom:24px;}
  .section-head h2{font-size:21px;}
  .pillar-grid,.scene-grid,.stat-grid{grid-template-columns:1fr;}
  .tl-item{padding-left:48px;padding-bottom:20px;}
  .tl-item::before{left:15px;top:38px;}
  .tl-num{width:32px;height:32px;font-size:13px;}
  .tl-card,.card{padding:20px;}
  .faq-q{padding:17px 18px;font-size:15.5px;}
  .faq-a-inner{padding:0 18px 18px;}
  .cta-inner h2{font-size:23px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{
    right:16px;bottom:20px;
    padding:0;
    width:52px;height:52px;
    justify-content:center;
    border-radius:50%;
  }
  .float-cta .float-cta-text{display:none;}
  .stat-num{font-size:28px;}
}
@media screen and (max-width:520px){
  .hero-inner h1{font-size:22px;}
  .scene-body{padding:18px;}
  .card h3{font-size:17px;}
}

/* roulang page: category5 */
:root{
  --brand:#1F4A3F;
  --brand-dark:#18392F;
  --brand-deep:#16211D;
  --accent:#C9873A;
  --accent-soft:#F3E7D6;
  --brick:#A8452F;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --text:#1B211F;
  --text-2:#5A625E;
  --text-3:#8A928E;
  --border:#E4DED2;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 2px 6px rgba(20,30,26,.06);
  --shadow-lg:0 10px 28px rgba(20,30,26,.12);
  --container:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .25s ease,background-color .25s ease,border-color .25s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:28px;line-height:1.32;letter-spacing:.2px;}
.section-head p{color:var(--text-2);font-size:15px;margin-top:8px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--brand);background:var(--accent-soft);border-radius:999px;padding:6px 14px;font-weight:600;
}
.eyebrow i{font-size:12px;color:var(--accent);}
.tag{
  display:inline-block;font-size:12px;line-height:1.6;padding:3px 11px;border-radius:999px;
  background:rgba(168,69,47,.09);color:var(--brick);border:1px solid rgba(168,69,47,.18);font-weight:600;
}
.tag-green{background:rgba(31,74,63,.08);color:var(--brand);border-color:rgba(31,74,63,.18);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;transition:all .25s ease;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-lg);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand);border-color:var(--border);}
.btn-light:hover{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;pointer-events:none;}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:14px 0;background:rgba(247,244,238,.92);backdrop-filter:blur(8px);}
.nav-panel{
  display:flex;align-items:center;gap:20px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:12px 16px;box-shadow:var(--shadow-sm);
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(140deg,var(--brand),#2C6755);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:14px;letter-spacing:.5px;
}
.logo-text{font-size:16px;font-weight:700;color:var(--text);line-height:1.25;display:flex;flex-direction:column;}
.logo-text .logo-sub{font-family:var(--font-num);font-size:10px;letter-spacing:1.6px;text-transform:uppercase;color:var(--text-3);font-weight:500;}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;flex-wrap:wrap;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 13px;border-radius:10px;font-size:14px;font-weight:500;
  color:var(--text-2);background:transparent;border:1px solid transparent;
}
.nav-dot{width:5px;height:5px;border-radius:50%;background:var(--border);transition:background-color .25s ease;}
.nav-item:hover{background:rgba(31,74,63,.06);color:var(--brand);border-color:rgba(31,74,63,.12);}
.nav-item:hover .nav-dot{background:var(--brand);}
.nav-item.is-active{background:var(--brand);color:#fff;border-color:var(--brand);}
.nav-item.is-active .nav-dot{background:var(--accent);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--border);color:var(--brand);background:#fff;font-size:16px;
}
.nav-toggle:hover{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-color:#16211D;
  background-image:linear-gradient(105deg,rgba(22,33,29,.94) 0%,rgba(22,33,29,.78) 48%,rgba(22,33,29,.42) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:#fff;
}
.page-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;}
.crumb{font-size:13px;color:rgba(255,255,255,.66);display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:20px;}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:var(--accent);}
.crumb span.sep{color:rgba(255,255,255,.35);}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
.hero-copy h1{font-size:38px;line-height:1.28;letter-spacing:.4px;margin:18px 0 16px;color:#fff;}
.hero-copy .lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:560px;}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px;}
.hero-btns .btn-light{background:rgba(255,255,255,.96);}
.hero-btns .btn-ghost{color:#fff;border-color:rgba(255,255,255,.45);}
.hero-btns .btn-ghost:hover{background:#fff;color:var(--brand-dark);border-color:#fff;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.badge{
  font-size:13px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.9);display:inline-flex;align-items:center;gap:7px;
}
.badge i{color:var(--accent);font-size:12px;}
.hero-visual{position:relative;}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;border:1px solid rgba(255,255,255,.18);box-shadow:0 22px 48px rgba(0,0,0,.34);}
.hero-note{
  position:absolute;left:-14px;bottom:-22px;background:#fff;color:var(--text);
  border:1px solid var(--border);border-radius:var(--radius-card);
  padding:16px 18px;box-shadow:var(--shadow-lg);max-width:270px;
}
.hero-note strong{display:block;font-size:15px;margin-bottom:4px;}
.hero-note span{font-size:13px;color:var(--text-2);line-height:1.7;display:block;}

/* ---------- Cards ---------- */
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
  overflow:hidden;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#D6CEBF;}
.card-media{overflow:hidden;background:#EFEBE2;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:20px;line-height:1.4;}
.card-body p{font-size:15px;line-height:1.75;color:var(--text-2);}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px;font-size:13px;color:var(--text-3);}
.card-foot .more{font-weight:600;color:var(--brand);}
.card:hover .card-foot .more{color:var(--accent);}
.card-index{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--accent);letter-spacing:1px;}

/* ---------- Big cards (分类5 版式) ---------- */
.big-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.big-card{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--border);background:var(--card);box-shadow:var(--shadow-sm);transition:transform .35s ease,box-shadow .35s ease;}
.big-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.big-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.big-card:hover img{transform:scale(1.03);}
.big-card-body{padding:22px 24px 26px;}
.big-card-body h3{font-size:20px;margin-bottom:10px;line-height:1.4;}
.big-card-body p{font-size:15px;color:var(--text-2);line-height:1.78;}
.big-card .ribbon{
  position:absolute;top:14px;left:14px;z-index:2;
  background:rgba(22,33,29,.82);color:#fff;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:999px;backdrop-filter:blur(4px);
}

/* ---------- Accordion ---------- */
.acc-wrap{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.acc-item + .acc-item{border-top:1px solid var(--border);}
.acc-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--text);line-height:1.6;
  transition:background-color .25s ease,color .25s ease;
}
.acc-item summary::-webkit-details-marker{display:none;}
.acc-item summary::after{
  content:"+";font-family:var(--font-num);font-size:22px;font-weight:400;color:var(--accent);
  transition:transform .22s ease;flex-shrink:0;line-height:1;
}
.acc-item[open] summary{background:rgba(31,74,63,.045);color:var(--brand);}
.acc-item[open] summary::after{content:"−";}
.acc-item summary:hover{background:rgba(31,74,63,.06);}
.acc-body{padding:2px 24px 24px;font-size:16px;line-height:1.85;color:var(--text-2);}
.acc-body ul{margin-top:10px;display:flex;flex-direction:column;gap:8px;}
.acc-body li{position:relative;padding-left:18px;font-size:15px;}
.acc-body li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;background:var(--accent);}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-sm);position:relative;transition:transform .3s ease,box-shadow .3s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.step-num{
  font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--accent);border:1px solid rgba(201,135,58,.4);border-radius:999px;
  padding:4px 12px;display:inline-block;margin-bottom:14px;background:rgba(201,135,58,.08);
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:15px;color:var(--text-2);line-height:1.75;}

/* ---------- Stats ---------- */
.stats-band{background:var(--brand-deep);color:#fff;border-radius:var(--radius-card);padding:40px 32px;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;}
.stat-num{font-family:var(--font-num);font-size:38px;font-weight:700;line-height:1.1;color:#fff;}
.stat-num em{font-style:normal;font-size:17px;font-weight:600;color:var(--accent);margin-left:3px;}
.stat-label{font-size:14px;color:rgba(255,255,255,.72);margin-top:8px;}
.stats-divider{height:1px;background:rgba(255,255,255,.14);margin:32px 0 26px;}
.quote-card{display:flex;gap:16px;align-items:flex-start;}
.quote-card .qmark{font-family:var(--font-num);font-size:40px;line-height:1;color:var(--accent);}
.quote-card p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.86);}
.quote-card .qfrom{font-size:13px;color:rgba(255,255,255,.55);margin-top:8px;}

/* ---------- Channel links ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.channel-card{
  display:flex;align-items:center;gap:14px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:18px 20px;box-shadow:var(--shadow-sm);transition:all .3s ease;color:var(--text);
}
.channel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:rgba(31,74,63,.3);color:var(--brand);}
.channel-ico{
  width:42px;height:42px;border-radius:11px;flex-shrink:0;
  background:rgba(31,74,63,.08);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.channel-card:hover .channel-ico{background:var(--brand);color:#fff;}
.channel-card strong{display:block;font-size:15px;font-weight:600;}
.channel-card span{font-size:13px;color:var(--text-3);}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--brand) 0%,#16362D 100%);
  border-radius:var(--radius-card);padding:52px 40px;color:#fff;text-align:center;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:28px;line-height:1.35;margin-bottom:14px;color:#fff;}
.cta-band p{font-size:16px;line-height:1.85;color:rgba(255,255,255,.82);max-width:660px;margin:0 auto;}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px;}
.cta-band .btn-light:hover{background:var(--accent);color:#fff;border-color:var(--accent);}
.cta-band .btn-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5);}
.cta-band .btn-outline:hover{background:#fff;color:var(--brand-dark);border-color:#fff;}
.cta-note{font-size:13px;color:rgba(255,255,255,.6);margin-top:20px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.5);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- Floating CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:60;
  display:inline-flex;align-items:center;gap:9px;
  background:var(--brand);color:#fff;border-radius:999px;padding:13px 22px;
  font-size:14px;font-weight:600;box-shadow:0 12px 30px rgba(20,30,26,.26);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .35s ease,transform .35s ease,background-color .25s ease,visibility .35s;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--accent);color:#fff;}

/* ---------- Responsive ---------- */
@media screen and (max-width:1199px){
  .container{padding:0 24px;}
  .hero-copy h1{font-size:33px;}
  .nav-links{gap:4px;}
  .nav-item{padding:7px 11px;font-size:13px;}
}
@media screen and (max-width:991px){
  .section{padding:56px 0;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:8px;
    background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
    padding:14px;box-shadow:var(--shadow-lg);
  }
  .nav-panel{position:relative;flex-wrap:wrap;}
  .nav-panel.is-open .nav-links{display:flex;}
  .nav-links .nav-item{padding:11px 14px;font-size:14px;}
  .nav-actions{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-copy h1{font-size:30px;}
  .hero-note{position:static;margin-top:18px;max-width:none;}
  .big-card-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .channel-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:44px 0;}
  .page-hero .container{padding-top:44px;padding-bottom:44px;}
  .hero-copy h1{font-size:26px;}
  .hero-copy .lead{font-size:15px;}
  .section-head h2{font-size:22px;}
  .section-head{margin-bottom:24px;}
  .card-body{padding:20px;}
  .big-card-body{padding:18px 20px 22px;}
  .acc-item summary{padding:17px 18px;font-size:16px;}
  .acc-body{padding:2px 18px 20px;}
  .stats-band{padding:30px 20px;}
  .stats-grid{grid-template-columns:1fr;}
  .stat-num{font-size:32px;}
  .channel-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 20px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .float-cta{right:16px;bottom:20px;padding:0;width:52px;height:52px;justify-content:center;font-size:18px;}
  .float-cta span{display:none;}
}