/* roulang page: index */
:root{
  --primary:#B4451F;
  --primary-dark:#8C3214;
  --secondary:#2F4A42;
  --accent:#C08A2E;
  --ink:#241F1C;
  --muted:#6E645C;
  --bg:#FAF6F0;
  --surface:#FFFFFF;
  --line:#E8E0D6;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-badge:4px;
  --radius-input:8px;
  --shadow-1:0 1px 2px rgba(36,31,28,.05);
  --shadow-2:0 10px 28px rgba(36,31,28,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary-dark);text-decoration:none;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;font-weight:600;letter-spacing:.005em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}

/* ---------- 顶部信息条 ---------- */
.topbar{
  height:36px;
  background:var(--secondary);
  color:#F3EFE9;
  font-size:13px;
  line-height:36px;
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:36px;
  gap:16px;
}
.topbar__left{
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  letter-spacing:.02em;
}
.topbar__domain{color:#DCC9A8;letter-spacing:.02em;}
.topbar__right{display:flex;align-items:center;gap:18px;flex-shrink:0;}
.topbar__right a{color:#F3EFE9;font-size:13px;transition:color .2s ease;}
.topbar__right a:hover{color:#E9C98C;}

/* ---------- 主导航 ---------- */
.site-header{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:80;
  transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 6px 18px rgba(36,31,28,.08);}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:74px;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;}
.brand__mark{
  width:38px;height:38px;border-radius:10px;
  background:var(--primary);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
  box-shadow:0 2px 6px rgba(180,69,31,.28);
}
.brand__mark svg{width:24px;height:24px;display:block;}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__text strong{
  font-family:var(--serif);
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.04em;
}
.brand__text em{
  font-style:normal;
  font-size:11.5px;
  color:var(--muted);
  letter-spacing:.16em;
}
.nav-desktop{display:flex;align-items:center;gap:6px;}
.nav-desktop a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--ink);
  border-radius:6px;
  transition:color .2s ease,background .2s ease;
}
.nav-desktop a:hover{color:var(--primary);background:rgba(180,69,31,.05);}
.nav-desktop a.is-active{color:var(--primary);font-weight:600;}
.nav-desktop a.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:3px;
  background:var(--primary);
  border-radius:2px;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--surface);
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:19px;height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-mobile{
  display:none;
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:8px 0 16px;
}
.nav-mobile.is-open{display:block;}
.nav-mobile a{
  display:block;
  height:52px;
  line-height:52px;
  padding:0 24px;
  font-size:16px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.nav-mobile a.is-active{color:var(--primary);font-weight:600;}
body.nav-locked{overflow:hidden;}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(1100px 460px at 88% -12%, rgba(192,138,46,.12), transparent 62%),
    linear-gradient(180deg,#FDF9F3 0%, var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.hero__grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
  padding:72px 0 68px;
}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--primary);
  border-left:3px solid var(--accent);
  padding-left:9px;
  margin-bottom:16px;
  line-height:1.4;
}
.hero h1{
  font-size:38px;
  line-height:1.34;
  font-weight:600;
  margin:0 0 18px;
}
.hero__sub{
  font-size:17px;
  color:var(--muted);
  line-height:1.8;
  margin:0 0 30px;
  max-width:520px;
}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:15.5px;
  font-weight:600;
  letter-spacing:.02em;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
  text-decoration:none;
}
.btn--primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn--primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(140,50,20,.22);}
.btn--ghost{background:var(--surface);color:var(--primary);border-color:var(--primary);}
.btn--ghost:hover{background:rgba(180,69,31,.08);transform:translateY(-2px);}
.btn--light{background:#fff;color:var(--primary-dark);border-color:#fff;}
.btn--light:hover{background:#F6EBE3;color:var(--primary-dark);transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

.hero__media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  border:1px solid var(--line);
}
.hero__media img{width:100%;height:396px;object-fit:cover;}
.hero__media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(180,69,31,.14),rgba(250,246,240,.06) 58%);
  pointer-events:none;
}
.hero__tag{
  position:absolute;
  left:20px;bottom:20px;
  z-index:2;
  background:rgba(255,255,255,.94);
  color:var(--secondary);
  font-size:13px;
  letter-spacing:.08em;
  padding:7px 14px;
  border-radius:var(--radius-badge);
  border:1px solid rgba(47,74,66,.16);
}
.hero__stars{
  position:absolute;
  right:18px;top:18px;
  z-index:2;
  display:flex;gap:6px;
}
.hero__stars i{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--accent);
  opacity:.85;
  display:block;
}
.hero__stars i:nth-child(2){opacity:.55;}
.hero__stars i:nth-child(3){opacity:.35;}

/* ---------- 微信任条 ---------- */
.trustbar{border-top:1px solid var(--line);background:rgba(255,255,255,.62);}
.trustbar__list{display:grid;grid-template-columns:repeat(4,1fr);}
.trustbar__list li{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:20px 12px;
  font-size:14.5px;
  font-weight:600;
  color:var(--secondary);
  border-right:1px solid var(--line);
  text-align:center;
}
.trustbar__list li:last-child{border-right:0;}
.trustbar__ico{color:var(--primary);display:inline-flex;flex-shrink:0;}
.trustbar__ico svg{width:20px;height:20px;}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section--soft{background:#F6F0E8;}
.section--plain{background:var(--bg);}
.section-head{max-width:740px;margin-bottom:44px;}
.section-head h2{
  font-size:28px;
  line-height:1.4;
  margin:0 0 12px;
}
.section-head p{color:var(--muted);font-size:16px;margin:0;}

/* ---------- 卖点三连 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.adv-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;
  flex-direction:column;
}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--primary);}
.adv-card__num{
  font-family:var(--serif);
  font-size:24px;
  font-weight:600;
  color:var(--accent);
  letter-spacing:.04em;
  margin-bottom:14px;
  display:block;
}
.adv-card__ico{color:var(--primary);margin-bottom:16px;}
.adv-card__ico svg{width:30px;height:30px;}
.adv-card h3{font-size:20px;margin:0 0 10px;line-height:1.45;}
.adv-card p{font-size:15px;color:var(--muted);line-height:1.8;margin:0;}

/* ---------- 场景演示 ---------- */
.demo{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.demo + .demo{margin-top:72px;}
.demo--reverse .demo__media{order:2;}
.demo__media{
  border-left:4px solid var(--primary);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  background:var(--surface);
  position:relative;
}
.demo__media img{width:100%;height:330px;object-fit:cover;}
.demo__media span{
  position:absolute;
  left:0;top:0;
  background:var(--primary);
  color:#fff;
  font-size:12.5px;
  letter-spacing:.1em;
  padding:6px 13px;
  border-bottom-right-radius:var(--radius-badge);
}
.demo__body .tag{
  display:inline-block;
  font-size:13px;
  color:var(--secondary);
  background:rgba(47,74,66,.08);
  border:1px solid rgba(47,74,66,.18);
  border-radius:var(--radius-badge);
  padding:3px 10px;
  margin-bottom:14px;
  letter-spacing:.06em;
}
.demo__body h3{font-size:22px;line-height:1.45;margin:0 0 14px;}
.demo__list li{
  position:relative;
  padding-left:18px;
  margin-bottom:10px;
  font-size:15.5px;
  color:var(--muted);
  line-height:1.8;
}
.demo__list li::before{
  content:"";
  position:absolute;
  left:0;top:.78em;
  width:7px;height:2px;
  background:var(--primary);
  border-radius:2px;
}
.demo__link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:18px;
  font-size:15px;
  font-weight:600;
  color:var(--primary-dark);
  border-bottom:1px solid rgba(140,50,20,.35);
  padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.demo__link:hover{color:var(--primary);border-color:var(--primary);}

/* ---------- 社会认同 ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  margin-bottom:40px;
}
.stat{
  padding:30px 20px;
  text-align:center;
  border-right:1px solid var(--line);
}
.stat:last-child{border-right:0;}
.stat__num{
  display:block;
  font-family:var(--serif);
  font-size:32px;
  line-height:1.2;
  color:var(--primary);
  font-weight:600;
  letter-spacing:.02em;
}
.stat__label{display:block;font-size:13px;color:var(--muted);margin-top:6px;letter-spacing:.04em;}

.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--primary);}
.quote-card__mark{
  font-family:var(--serif);
  font-size:34px;
  line-height:1;
  color:var(--accent);
  margin-bottom:10px;
  display:block;
}
.quote-card__text{font-size:15px;line-height:1.85;color:var(--ink);margin:0 0 18px;}
.quote-card__who{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;}
.quote-card__who strong{color:var(--secondary);font-weight:600;margin-right:8px;}

/* ---------- 最新信息 ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.chip{
  display:inline-block;
  font-size:14px;
  padding:7px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--muted);
  transition:all .2s ease;
}
.chip.is-active{
  border-color:var(--primary);
  background:var(--primary);
  color:#fff;
  box-shadow:0 2px 8px rgba(180,69,31,.22);
}
.chip:hover{border-color:var(--primary);color:var(--primary);}
.chip.is-active:hover{color:#fff;}

.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;
  flex-direction:column;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--primary);}
.post-card__media{display:block;overflow:hidden;background:#F1EAE1;}
.post-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-card__media img{transform:scale(1.04);}
.post-card__body{padding:24px;display:flex;flex-direction:column;flex:1;}
.badge{
  display:inline-block;
  align-self:flex-start;
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--secondary);
  border:1px solid rgba(47,74,66,.28);
  border-radius:var(--radius-badge);
  padding:2px 9px;
  margin-bottom:12px;
  background:rgba(47,74,66,.05);
}
.post-card__title{font-size:18px;line-height:1.5;margin:0 0 10px;}
.post-card__title a{
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .2s ease;
}
.post-card__title a:hover{color:var(--primary);}
.post-card__excerpt{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.75;
  margin:0 0 18px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card__foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.post-card__time{font-size:13px;color:var(--muted);letter-spacing:.02em;}
.post-card__more{font-size:13.5px;font-weight:600;color:var(--primary-dark);white-space:nowrap;}
.post-card__more:hover{color:var(--primary);}
.post-more-wrap{display:flex;justify-content:center;margin-top:44px;}

.empty-state{
  grid-column:1 / -1;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  padding:56px 24px;
  text-align:center;
  color:var(--muted);
  background:rgba(255,255,255,.6);
}
.empty-state svg{width:34px;height:34px;color:var(--line);margin:0 auto 14px;}
.empty-state p{font-size:15px;margin:0 0 18px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:12px;
  padding:0 24px;
  transition:border-color .2s ease;
}
.faq-item[open]{border-left-color:var(--primary);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 0;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  display:flex;
  align-items:baseline;
  gap:14px;
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.faq-item .q-index{
  font-family:var(--serif);
  font-size:14px;
  color:var(--muted);
  flex-shrink:0;
  letter-spacing:.04em;
}
.faq-item .faq-a{
  padding:0 0 20px 36px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}

/* ---------- 页底 CTA ---------- */
.cta-band{
  background:var(--primary);
  color:#fff;
  border-radius:var(--radius-card);
  padding:48px;
  display:grid;
  grid-template-columns:1fr auto;
  gap:32px;
  align-items:center;
  box-shadow:0 14px 36px rgba(140,50,20,.22);
}
.cta-band h2{color:#fff;font-size:26px;margin:0 0 10px;}
.cta-band p{color:rgba(255,255,255,.86);font-size:15.5px;margin:0;max-width:640px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#241F1C;
  color:#D8D0C8;
  padding-top:64px;
  margin-top:80px;
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand__mark{background:var(--primary);}
.footer-brand strong{
  font-family:var(--serif);
  font-size:19px;
  color:#fff;
  letter-spacing:.04em;
  display:block;
  line-height:1.3;
}
.footer-brand em{
  font-style:normal;
  font-size:11.5px;
  color:#9C9289;
  letter-spacing:.16em;
}
.footer-desc{font-size:14px;line-height:1.8;color:#9C9289;margin:0;max-width:320px;}
.footer-col h4{font-size:14px;color:#fff;margin:0 0 16px;font-weight:700;letter-spacing:.04em;font-family:var(--sans);}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:#B8AFA6;transition:color .2s ease;}
.footer-col ul li a:hover{color:var(--accent);}
.footer-col ul li span{font-size:14px;color:#B8AFA6;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8B8279;
}
.footer-bottom a{color:#8B8279;}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 移动端底部转化条 ---------- */
.mobile-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  height:60px;
  background:var(--surface);
  border-top:1px solid var(--line);
  box-shadow:0 -4px 18px rgba(36,31,28,.08);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:0 16px;
  z-index:90;
  transform:translateY(100%);
  transition:transform .26s ease;
}
.mobile-bar.is-visible{transform:translateY(0);}
.mobile-bar__text{font-size:14px;color:var(--secondary);font-weight:600;}
.mobile-bar .btn{height:40px;padding:0 18px;font-size:14px;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .hero__grid{grid-template-columns:1fr;gap:40px;padding:56px 0 52px;}
  .hero h1{font-size:33px;}
  .hero__media img{height:320px;}
  .adv-grid{grid-template-columns:1fr 1fr;}
  .demo{grid-template-columns:1fr;gap:28px;}
  .demo--reverse .demo__media{order:0;}
  .demo + .demo{margin-top:56px;}
  .post-grid{grid-template-columns:1fr 1fr;}
  .quote-grid{grid-template-columns:1fr 1fr;}
  .quote-grid .quote-card:last-child{grid-column:1 / -1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:60px 0;}
}
@media screen and (max-width:768px){
  body{font-size:16px;padding-bottom:60px;}
  .nav-desktop{display:none;}
  .nav-toggle{display:flex;}
  .header__inner{height:64px;}
  .topbar__right{display:none;}
  .hero__grid{padding:40px 0 40px;}
  .hero h1{font-size:28px;}
  .hero__sub{font-size:16px;}
  .hero__media img{height:250px;}
  .trustbar__list{grid-template-columns:1fr 1fr;}
  .trustbar__list li{border-bottom:1px solid var(--line);}
  .trustbar__list li:nth-child(2n){border-right:0;}
  .trustbar__list li:nth-child(n+3){border-bottom:0;}
  .adv-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat{border-bottom:1px solid var(--line);}
  .stat:nth-child(2n){border-right:0;}
  .stat:nth-child(n+3){border-bottom:0;}
  .quote-grid{grid-template-columns:1fr;display:flex;overflow-x:auto;gap:16px;padding-bottom:8px;scroll-snap-type:x mandatory;}
  .quote-grid .quote-card{min-width:78%;scroll-snap-align:start;}
  .quote-grid .quote-card:last-child{grid-column:auto;}
  .post-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:36px 24px;text-align:left;}
  .demo__media img{height:230px;}
  .section{padding:44px 0;}
  .section-head h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .mobile-bar{transform:translateY(0);}
  .mobile-bar.is-visible{transform:translateY(0);}
}
@media screen and (max-width:520px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .hero h1{font-size:25px;}
  .hero__actions .btn{flex:1 1 100%;}
  .hero__actions .btn--ghost{order:2;}
  .stats{grid-template-columns:1fr;}
  .stat{border-right:0;border-bottom:1px solid var(--line);}
  .stat:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band__actions .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --primary:#B4451F;
  --primary-dark:#8C3214;
  --secondary:#2F4A42;
  --accent:#C08A2E;
  --ink:#241F1C;
  --muted:#6E645C;
  --bg:#FAF6F0;
  --surface:#FFFFFF;
  --line:#E8E0D6;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-badge:4px;
  --shadow-1:0 1px 2px rgba(36,31,28,.05);
  --shadow-2:0 10px 28px rgba(36,31,28,.10);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-bottom:72px;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
a:hover{color:var(--primary);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
h1,h2,h3,h4{color:var(--ink);font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}

/* ---------- 顶部信息条 ---------- */
.info-bar{background:var(--secondary);color:rgba(250,246,240,.9);font-size:13px;}
.info-bar .grid-container{display:flex;align-items:center;justify-content:space-between;gap:24px;height:36px;overflow:hidden;}
.info-bar__left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.info-bar__dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto;}
.info-bar__right{display:flex;align-items:center;gap:22px;white-space:nowrap;}
.info-bar a{color:#FAF6F0;text-decoration:none;opacity:.88;}
.info-bar a:hover{opacity:1;color:#fff;text-decoration:underline;}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .22s ease;}
.site-header.is-stuck{box-shadow:var(--shadow-2);}
.site-header a{text-decoration:none;}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px;}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);}
.brand__mark{width:38px;height:38px;border-radius:10px;background:var(--secondary);display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.brand__mark svg{width:26px;height:26px;display:block;}
.brand__text strong{display:block;font-family:var(--font-serif);font-size:18px;line-height:1.2;letter-spacing:.02em;}
.brand__text em{display:block;font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.2em;margin-top:2px;}
.nav-desktop{display:flex;align-items:center;gap:30px;}
.nav-desktop a{position:relative;font-size:15px;color:var(--ink);padding:6px 0;transition:color .2s ease;}
.nav-desktop a::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;border-radius:2px;}
.nav-desktop a:hover{color:var(--primary);}
.nav-desktop a:hover::after{transform:scaleX(1);}
.nav-desktop a.is-active{color:var(--primary);font-weight:600;}
.nav-desktop a.is-active::after{transform:scaleX(1);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--surface);padding:0;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-mobile{display:none;flex-direction:column;background:var(--surface);border-top:1px solid var(--line);}
.nav-mobile.is-open{display:flex;}
.nav-mobile a{display:flex;align-items:center;height:52px;padding:0 24px;color:var(--ink);font-size:15px;border-bottom:1px solid var(--line);}
.nav-mobile a.is-active{color:var(--primary);font-weight:600;background:rgba(180,69,31,.05);}

/* ---------- 页头横幅 ---------- */
.page-banner{position:relative;min-height:268px;display:flex;align-items:center;background-image:url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center 38%;background-repeat:no-repeat;color:#fff;overflow:hidden;}
.page-banner::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(36,31,28,.80) 0%,rgba(47,74,66,.58) 62%,rgba(47,74,66,.34) 100%);}
.page-banner .grid-container{position:relative;z-index:2;padding-top:52px;padding-bottom:52px;}
.banner-tag{display:inline-block;font-size:12.5px;letter-spacing:.2em;color:#FAF6F0;border:1px solid rgba(250,246,240,.48);border-radius:var(--radius-badge);padding:4px 11px;}
.page-banner h1{font-size:38px;line-height:1.3;color:#fff;margin:18px 0 12px;max-width:820px;}
.banner-sub{max-width:700px;margin:0;font-size:16px;color:rgba(250,246,240,.86);}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;color:var(--muted);padding:20px 0 0;}
.breadcrumb a{color:var(--muted);text-decoration:none;}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;}
.breadcrumb .sep{margin:0 8px;opacity:.55;}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0;}
.section--tight{padding:44px 0 36px;}
.section--alt{background:#F4EDE4;}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.22em;color:var(--accent);margin-bottom:12px;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:27px;line-height:1.4;margin:0 0 12px;}
.section-head p{color:var(--muted);font-size:15.5px;margin:0;}
.lead{font-size:17px;max-width:820px;}

/* ---------- 编号时间轴 ---------- */
.timeline{position:relative;padding:8px 0 0;}
.timeline::before{content:"";position:absolute;left:27px;top:24px;bottom:36px;width:1px;background:var(--line);}
.tl-item{position:relative;padding-left:78px;margin-bottom:30px;}
.tl-num{position:absolute;left:0;top:2px;width:56px;height:56px;border-radius:50%;background:var(--surface);border:1px solid var(--line);color:var(--accent);font-family:var(--font-serif);font-size:20px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-1);}
.tl-item h3{font-size:20px;margin:0 0 8px;padding-top:12px;}
.tl-item p{margin:0 0 12px;color:var(--ink);}
.tl-points{display:flex;flex-wrap:wrap;gap:10px;}
.tl-points span{display:inline-block;font-size:13px;color:var(--secondary);background:rgba(47,74,66,.07);border:1px solid rgba(47,74,66,.16);border-radius:var(--radius-badge);padding:4px 10px;}

/* ---------- 图文块 ---------- */
.media-row{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center;}
.media-row__figure{position:relative;}
.media-row__figure img{width:100%;border-radius:var(--radius-card);border:1px solid var(--line);box-shadow:var(--shadow-1);}
.figure-badge{position:absolute;left:14px;top:14px;background:var(--primary);color:#fff;font-size:12.5px;letter-spacing:.08em;border-radius:var(--radius-badge);padding:5px 10px;}
.media-row__body h2{font-size:27px;line-height:1.4;margin:0 0 14px;}
.media-list li{position:relative;padding-left:22px;margin-bottom:16px;font-size:16px;}
.media-list li::before{content:"";position:absolute;left:4px;top:12px;width:8px;height:2px;background:var(--primary);border-radius:2px;}
.media-list strong{display:block;font-weight:600;margin-bottom:2px;}
.media-list span{color:var(--muted);font-size:15px;}

/* ---------- 栏目对照（不等宽两栏） ---------- */
.compare-grid{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start;}
.compare-intro h2{font-size:26px;line-height:1.4;margin:0 0 12px;}
.compare-intro p{color:var(--muted);font-size:15px;margin:0;}
.compare-list{border-top:1px solid var(--line);}
.compare-item{display:grid;grid-template-columns:180px 1fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--line);}
.compare-item h3{font-size:18px;margin:0;padding-top:2px;}
.compare-item h3 a{text-decoration:none;}
.compare-item h3 a:hover{text-decoration:underline;}
.compare-item p{margin:0;color:var(--muted);font-size:15px;}

/* ---------- 排查步骤 + 提示 ---------- */
.trouble-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:44px;align-items:start;}
.step-list{counter-reset:step;}
.step-list li{position:relative;padding-left:44px;margin-bottom:18px;}
.step-list li::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:2px;width:26px;height:26px;border-radius:50%;border:1px solid var(--primary);color:var(--primary);font-size:13px;display:flex;align-items:center;justify-content:center;font-weight:600;}
.note-card{background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);padding:26px;}
.note-card h3{font-size:18px;margin:0 0 10px;}
.note-card p{font-size:15px;color:var(--muted);margin:0 0 14px;}
.note-card .note-line{font-size:14px;color:var(--secondary);padding-top:12px;border-top:1px solid var(--line);margin:0;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);margin-bottom:12px;overflow:hidden;}
.faq-item summary{cursor:pointer;list-style:none;display:flex;gap:14px;align-items:flex-start;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{content:attr(data-index);font-family:var(--font-serif);color:var(--muted);font-weight:400;flex:0 0 auto;}
.faq-item[open]{border-left:3px solid var(--primary);}
.faq-item[open] summary{color:var(--primary-dark);}
.faq-body{padding:0 24px 20px 58px;font-size:15px;line-height:1.85;color:#4A423C;}
.faq-body p:last-child{margin-bottom:0;}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--primary);color:#fff;border-radius:var(--radius-card);padding:42px 44px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:26px;line-height:1.4;margin:0 0 8px;}
.cta-band p{margin:0;color:rgba(255,255,255,.88);font-size:15px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);font-size:15px;line-height:1;padding:14px 24px;text-decoration:none;border:1.5px solid transparent;transition:background-color .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;cursor:pointer;white-space:nowrap;}
.btn--primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn--primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn--ghost{background:var(--surface);color:var(--primary);border-color:var(--primary);}
.btn--ghost:hover{background:rgba(180,69,31,.08);color:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px);}
.btn--onband{background:var(--surface);color:var(--primary-dark);border-color:var(--surface);}
.btn--onband:hover{background:#FAF6F0;color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 28px rgba(36,31,28,.18);}
.btn:focus-visible{outline:2px solid var(--secondary);outline-offset:3px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:#221D1A;color:rgba(250,246,240,.78);margin-top:20px;}
.site-footer .grid-container{padding-top:56px;padding-bottom:20px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(250,246,240,.14);}
.footer-brand{display:flex;align-items:center;gap:11px;color:#FAF6F0;margin-bottom:14px;}
.footer-brand .brand__mark{background:var(--primary);}
.footer-brand strong{display:block;font-family:var(--font-serif);font-size:18px;line-height:1.2;}
.footer-brand em{display:block;font-style:normal;font-size:11px;letter-spacing:.2em;color:rgba(250,246,240,.6);margin-top:2px;}
.footer-desc{font-size:14px;color:rgba(250,246,240,.66);margin:0;max-width:320px;}
.footer-col h4{color:#FAF6F0;font-size:14px;margin:0 0 16px;letter-spacing:.06em;}
.footer-col ul li{margin-bottom:11px;font-size:14px;}
.footer-col a{color:rgba(250,246,240,.72);text-decoration:none;}
.footer-col a:hover{color:var(--accent);text-decoration:underline;}
.footer-col span{color:rgba(250,246,240,.66);font-size:14px;word-break:break-all;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:18px;font-size:13px;color:rgba(250,246,240,.58);}
.footer-bottom a{color:rgba(250,246,240,.58);text-decoration:none;}
.footer-bottom a:hover{color:var(--accent);text-decoration:underline;}

/* ---------- 底部固定转化条 ---------- */
.bottom-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;height:60px;background:var(--surface);border-top:1px solid var(--line);box-shadow:0 -8px 22px rgba(36,31,28,.08);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 20px;transform:translateY(110%);transition:transform .28s ease;}
.bottom-bar.is-visible{transform:translateY(0);}
.bottom-bar__text{font-size:14px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bottom-bar .btn{padding:11px 18px;font-size:14px;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .page-banner h1{font-size:32px;}
  .media-row{grid-template-columns:1fr;gap:32px;}
  .media-row__figure{order:-1;}
  .compare-grid{grid-template-columns:1fr;gap:28px;}
  .trouble-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:56px 0;}
}
@media (max-width:900px){
  .nav-desktop{display:none;}
  .nav-toggle{display:flex;}
}
@media (max-width:768px){
  body{font-size:16px;padding-bottom:76px;}
  .info-bar .grid-container{height:34px;}
  .info-bar__right{display:none;}
  .header__inner{min-height:64px;}
  .page-banner{min-height:240px;background-position:center 30%;}
  .page-banner .grid-container{padding-top:40px;padding-bottom:40px;}
  .page-banner h1{font-size:27px;}
  .banner-sub{font-size:15px;}
  .section{padding:44px 0;}
  .section-head h2,.media-row__body h2,.compare-intro h2,.cta-band h2{font-size:22px;}
  .tl-item{padding-left:64px;margin-bottom:26px;}
  .tl-num{width:46px;height:46px;font-size:18px;}
  .timeline::before{left:22px;}
  .compare-item{grid-template-columns:1fr;gap:6px;}
  .cta-band{padding:32px 24px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .bottom-bar{transform:translateY(0);}
}
@media (max-width:480px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .page-banner h1{font-size:24px;}
  .faq-item summary{padding:18px 18px;font-size:15.5px;}
  .faq-body{padding:0 18px 18px 46px;}
  .bottom-bar__text{font-size:13px;}
  .bottom-bar .btn{padding:10px 14px;font-size:13px;}
  .brand__text em{display:none;}
}

/* roulang page: article */
:root{
  --primary:#B4451F;
  --primary-dark:#8C3214;
  --secondary:#2F4A42;
  --accent:#C08A2E;
  --ink:#241F1C;
  --muted:#6E645C;
  --bg:#FAF6F0;
  --surface:#FFFFFF;
  --line:#E8E0D6;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-badge:4px;
  --shadow-1:0 1px 2px rgba(36,31,28,.05);
  --shadow-2:0 10px 28px rgba(36,31,28,.10);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --font-sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --section-y:80px;
  --header-h:72px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  padding-bottom:60px;
}

img{ max-width:100%; height:auto; display:block; border:0; }
a{ color:var(--primary-dark); text-decoration:none; }
a:hover{ color:var(--primary); }
h1,h2,h3,h4{ font-family:var(--font-serif); color:var(--ink); margin:0; font-weight:600; }
ul,ol{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; }

:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}

.grid-container{
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.grid-container.full{ max-width:none; }

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--secondary);
  color:#F3EDE4;
  font-size:13px;
  line-height:36px;
  height:36px;
  overflow:hidden;
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:36px;
}
.topbar__note{
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  opacity:.9;
}
.topbar__links{ display:flex; gap:20px; flex:0 0 auto; }
.topbar__links a{ color:#F3EDE4; opacity:.88; transition:opacity .2s ease; }
.topbar__links a:hover{ opacity:1; color:#FFFFFF; text-decoration:underline; text-underline-offset:3px; }

/* ---------- 主导航 ---------- */
.site-header{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:60;
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{ box-shadow:0 4px 18px rgba(36,31,28,.08); }
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:var(--header-h);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand:hover{ color:var(--ink); }
.brand__mark{
  width:38px;
  height:38px;
  border-radius:10px;
  background:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.brand__mark svg{ width:26px; height:26px; display:block; }
.brand__text{ display:flex; flex-direction:column; line-height:1.15; }
.brand__text strong{
  font-family:var(--font-serif);
  font-size:19px;
  font-weight:600;
  letter-spacing:.04em;
}
.brand__text em{
  font-style:normal;
  font-size:11px;
  letter-spacing:.28em;
  color:var(--muted);
}

.nav-desktop{ display:flex; align-items:center; gap:6px; }
.nav-desktop a{
  position:relative;
  display:inline-block;
  padding:0 14px;
  height:var(--header-h);
  line-height:var(--header-h);
  font-size:15px;
  color:var(--ink);
  transition:color .2s ease;
}
.nav-desktop a::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:16px;
  height:3px;
  border-radius:2px;
  background:transparent;
  transition:background .2s ease;
}
.nav-desktop a:hover{ color:var(--primary); }
.nav-desktop a:hover::after{ background:rgba(180,69,31,.28); }
.nav-desktop a.is-active{ color:var(--primary); }
.nav-desktop a.is-active::after{ background:var(--primary); }

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  padding:0;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--surface);
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .22s ease,opacity .22s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

.nav-mobile{
  display:none;
  border-top:1px solid var(--line);
  background:var(--surface);
}
.nav-mobile.is-open{ display:block; }
.nav-mobile a{
  display:flex;
  align-items:center;
  height:52px;
  padding:0 24px;
  font-size:16px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.nav-mobile a:hover{ background:#FBF6EF; color:var(--primary); }
.nav-mobile a.is-active{ color:var(--primary); font-weight:600; }

/* ---------- 面包屑 ---------- */
.breadcrumb{
  background:#F4EDE4;
  border-bottom:1px solid var(--line);
  font-size:13px;
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:14px 0;
  color:var(--muted);
}
.breadcrumb li{ display:inline-flex; align-items:center; gap:8px; }
.breadcrumb li + li::before{ content:"/"; color:#BFB3A6; }
.breadcrumb a{ color:var(--muted); }
.breadcrumb a:hover{ color:var(--primary); }
.breadcrumb li[aria-current] span,
.breadcrumb li[aria-current]{
  color:var(--ink);
  max-width:52ch;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- 文章布局 ---------- */
.article-main{ padding:56px 0 72px; }
.article-layout{
  display:flex;
  gap:48px;
  justify-content:center;
  align-items:flex-start;
}

.article-card{
  flex:0 1 820px;
  max-width:820px;
  min-width:0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:48px 56px 40px;
}

.article-head{ border-bottom:1px solid var(--line); padding-bottom:26px; margin-bottom:32px; }
.badge{
  display:inline-block;
  font-size:12px;
  line-height:1;
  padding:6px 10px;
  border-radius:var(--radius-badge);
  border:1px solid rgba(180,69,31,.35);
  color:var(--primary-dark);
  background:rgba(180,69,31,.07);
  letter-spacing:.06em;
  margin-bottom:18px;
}
.article-head h1{
  font-size:36px;
  line-height:1.32;
  letter-spacing:.01em;
  margin-bottom:16px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px 22px;
  font-size:13px;
  color:var(--muted);
}
.article-meta span{ display:inline-flex; align-items:center; gap:6px; }
.article-meta span::before{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--accent);
  flex:0 0 auto;
}

/* ---------- 正文排版 ---------- */
.article-body{ font-size:17px; line-height:1.85; color:var(--ink); }
.article-body > *:first-child{ margin-top:0; }
.article-body p{ margin:0 0 1.1em; }
.article-body h2{
  font-size:27px;
  line-height:1.42;
  margin:2em 0 .7em;
  padding-left:16px;
  border-left:4px solid var(--primary);
  scroll-margin-top:100px;
}
.article-body h3{
  font-size:20px;
  line-height:1.5;
  margin:1.7em 0 .6em;
  color:var(--secondary);
  scroll-margin-top:100px;
}
.article-body h4{
  font-size:17px;
  margin:1.4em 0 .5em;
  color:var(--secondary);
}
.article-body ul,
.article-body ol{ margin:0 0 1.2em; padding-left:0; }
.article-body ul li,
.article-body ol li{
  position:relative;
  padding-left:22px;
  margin-bottom:.55em;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:4px;
  top:.72em;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--primary);
  opacity:.75;
}
.article-body ol{ counter-reset:artol; }
.article-body ol li{ counter-increment:artol; padding-left:30px; }
.article-body ol li::before{
  content:counter(artol);
  position:absolute;
  left:0;
  top:.28em;
  font-family:var(--font-serif);
  font-size:14px;
  color:var(--accent);
  font-weight:600;
}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:#FBF6EF;
  border-left:3px solid var(--accent);
  border-radius:0 var(--radius-btn) var(--radius-btn) 0;
  color:#4A423C;
  font-size:16px;
}
.article-body blockquote p:last-child{ margin-bottom:0; }
.article-body img{
  border-radius:var(--radius-card);
  margin:1.6em auto;
  box-shadow:var(--shadow-1);
}
.article-body a{
  color:var(--primary-dark);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.article-body a:hover{ color:var(--primary); }
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
}
.article-body th,
.article-body td{
  border:1px solid var(--line);
  padding:12px 14px;
  text-align:left;
}
.article-body th{ background:#FBF6EF; font-weight:600; }
.article-body hr{ border:0; border-top:1px solid var(--line); margin:2em 0; }
.article-body strong{ font-weight:600; }

/* ---------- 侧栏目录 ---------- */
.article-aside{
  flex:0 0 216px;
  position:sticky;
  top:calc(var(--header-h) + 24px);
  display:none;
}
.article-aside:not([hidden]){ display:none; }
@media (min-width:1200px){
  .article-aside:not([hidden]){ display:block; }
}
.aside-inner{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:20px 20px 16px;
}
.aside-title{
  font-size:14px;
  letter-spacing:.12em;
  color:var(--secondary);
  padding-bottom:12px;
  margin-bottom:12px;
  border-bottom:1px solid var(--line);
  font-weight:600;
}
#tocList li{ margin-bottom:8px; }
#tocList a{
  display:block;
  font-size:13.5px;
  line-height:1.6;
  color:var(--muted);
  padding-left:10px;
  border-left:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
#tocList a:hover{
  color:var(--primary);
  border-left-color:var(--primary);
}

/* ---------- 空状态 ---------- */
.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  padding:56px 28px;
  text-align:center;
  background:#FDFAF6;
}
.empty-state h2{ font-size:22px; margin-bottom:10px; }
.empty-state p{ color:var(--muted); font-size:15px; margin-bottom:22px; }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  font-size:15px;
  font-family:var(--font-sans);
  border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn--primary{
  background:var(--primary);
  color:#FFFFFF;
  border-color:var(--primary);
}
.btn--primary:hover{
  background:var(--primary-dark);
  border-color:var(--primary-dark);
  color:#FFFFFF;
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.btn--ghost{
  background:var(--surface);
  color:var(--primary-dark);
  border-color:rgba(180,69,31,.5);
}
.btn--ghost:hover{
  background:rgba(180,69,31,.08);
  color:var(--primary-dark);
  border-color:var(--primary);
  transform:translateY(-2px);
}
.btn--sm{ height:40px; padding:0 18px; font-size:14px; }
.btn:disabled,
.btn[aria-disabled="true"]{ opacity:.4; pointer-events:none; }

/* ---------- 文末操作条 ---------- */
.article-foot{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  justify-content:space-between;
  margin-top:40px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.article-foot__note{
  font-size:13px;
  color:var(--muted);
}
.article-foot__actions{ display:flex; flex-wrap:wrap; gap:12px; }

/* ---------- 相关推荐 ---------- */
.related{
  padding:var(--section-y) 0 0;
  max-width:1120px;
  margin:0 auto;
}
.section-head{ margin-bottom:32px; }
.section-head h2{
  font-size:28px;
  line-height:1.4;
  margin-bottom:10px;
}
.section-head p{
  color:var(--muted);
  font-size:15px;
  margin:0;
  max-width:640px;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:var(--primary);
}
.rel-card__media{
  aspect-ratio:16/9;
  background:var(--secondary);
  overflow:hidden;
}
.rel-card__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.rel-card:hover .rel-card__media img{ transform:scale(1.04); }
.rel-card__body{ padding:22px 24px 24px; display:flex; flex-direction:column; flex:1 1 auto; }
.rel-card__tag{
  display:inline-block;
  font-size:12px;
  color:var(--primary-dark);
  background:rgba(180,69,31,.08);
  border:1px solid rgba(180,69,31,.28);
  border-radius:var(--radius-badge);
  padding:4px 9px;
  margin-bottom:12px;
  align-self:flex-start;
  letter-spacing:.05em;
}
.rel-card h3{
  font-size:19px;
  line-height:1.5;
  margin-bottom:10px;
}
.rel-card p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--muted);
  margin:0 0 18px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-card__more{
  margin-top:auto;
  font-size:14px;
  color:var(--primary-dark);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.rel-card__more::after{
  content:"→";
  transition:transform .22s ease;
}
.rel-card:hover .rel-card__more::after{ transform:translateX(4px); }

/* ---------- 底部 CTA ---------- */
.cta-band{
  margin-top:var(--section-y);
  background:var(--primary);
  color:#FFFFFF;
}
.cta-band__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:48px 0;
}
.cta-band h2{
  color:#FFFFFF;
  font-size:26px;
  line-height:1.4;
  margin-bottom:8px;
}
.cta-band p{
  margin:0;
  font-size:15px;
  color:rgba(255,255,255,.86);
  max-width:560px;
}
.cta-band .btn--ghost{
  background:transparent;
  color:#FFFFFF;
  border-color:rgba(255,255,255,.7);
}
.cta-band .btn--ghost:hover{
  background:rgba(255,255,255,.14);
  color:#FFFFFF;
  border-color:#FFFFFF;
}
.cta-band .btn--primary{
  background:#FFFFFF;
  color:var(--primary-dark);
  border-color:#FFFFFF;
}
.cta-band .btn--primary:hover{
  background:#F6ECE2;
  color:var(--primary-dark);
  border-color:#F6ECE2;
}
.cta-band__actions{ display:flex; flex-wrap:wrap; gap:12px; }

/* ---------- 页脚 ---------- */
.site-footer{
  background:#201B18;
  color:#CFC6BC;
  margin-top:0;
  padding-top:60px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand span:last-child{ display:flex; flex-direction:column; line-height:1.15; }
.footer-brand strong{
  font-family:var(--font-serif);
  font-size:18px;
  color:#FFFFFF;
  letter-spacing:.04em;
}
.footer-brand em{
  font-style:normal;
  font-size:11px;
  letter-spacing:.28em;
  color:#9C9188;
}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:#A99F95;
  margin:0;
  max-width:300px;
}
.footer-col h4{
  color:#FFFFFF;
  font-size:14px;
  letter-spacing:.08em;
  margin-bottom:16px;
  font-weight:600;
}
.footer-col ul li{ margin-bottom:10px; }
.footer-col a,
.footer-col span{
  font-size:14px;
  color:#B7ADA3;
  transition:color .2s ease;
}
.footer-col a:hover{ color:#E8A97E; }
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  align-items:center;
  justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 24px;
  font-size:13px;
  color:#8E857C;
}
.footer-bottom a{ color:#8E857C; }
.footer-bottom a:hover{ color:#E8A97E; }

/* ---------- 移动端底部转化条 ---------- */
.mobile-cta{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:80;
  height:60px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:0 16px;
  background:var(--surface);
  border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(36,31,28,.10);
}
.mobile-cta span{
  font-size:14px;
  color:var(--ink);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.mobile-cta .btn{ flex:0 0 auto; }

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{ --section-y:60px; }
  .article-card{ padding:40px 36px 34px; }
  .article-head h1{ font-size:31px; }
  .article-body{ font-size:16.5px; }
  .article-body h2{ font-size:24px; }
  .related-grid{ grid-template-columns:repeat(2,1fr); }
  .footer-grid{ grid-template-columns:1.4fr 1fr 1fr; gap:32px; }
}

@media (max-width:768px){
  :root{ --section-y:44px; --header-h:64px; }
  .topbar{ font-size:12.5px; }
  .topbar__note{ max-width:62%; }
  .nav-desktop{ display:none; }
  .nav-toggle{ display:flex; }
  .article-main{ padding:32px 0 48px; }
  .article-layout{ gap:0; }
  .article-card{
    padding:28px 20px 26px;
    border-radius:var(--radius-card);
  }
  .article-head h1{ font-size:26px; line-height:1.36; }
  .article-body{ font-size:16px; }
  .article-body h2{ font-size:21px; padding-left:12px; border-left-width:3px; }
  .article-body h3{ font-size:18px; }
  .article-foot{ flex-direction:column; align-items:stretch; }
  .article-foot__actions .btn{ flex:1 1 auto; }
  .related-grid{ grid-template-columns:1fr; }
  .cta-band__inner{ padding:38px 0; flex-direction:column; align-items:flex-start; }
  .cta-band h2{ font-size:22px; }
  .cta-band__actions{ width:100%; }
  .cta-band__actions .btn{ flex:1 1 auto; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:28px; padding-bottom:32px; }
  .footer-brand{ margin-bottom:12px; }
}

@media (max-width:520px){
  .grid-container{ padding-left:18px; padding-right:18px; }
  .article-card{ padding:24px 16px 22px; }
  .article-head h1{ font-size:23px; }
  .article-meta{ gap:6px 14px; }
  .rel-card__body{ padding:18px 18px 20px; }
  .cta-band__actions .btn:last-child{ display:none; }
  .footer-grid{ grid-template-columns:1fr; }
  .mobile-cta span{ font-size:13px; }
}

/* roulang page: category2 */
:root{
  --primary:#B4451F;
  --primary-dark:#8C3214;
  --secondary:#2F4A42;
  --accent:#C08A2E;
  --ink:#241F1C;
  --muted:#6E645C;
  --bg:#FAF6F0;
  --surface:#FFFFFF;
  --line:#E8E0D6;
  --warm-bg:#F3ECE2;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-badge:4px;
  --shadow-1:0 1px 2px rgba(36,31,28,.05);
  --shadow-2:0 10px 28px rgba(36,31,28,.10);
  --font-serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
  --font-sans:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-serif);
  font-weight:600;
  color:var(--ink);
  line-height:1.32;
  margin:0;
}
h1{font-size:38px;letter-spacing:.01em;}
h2{font-size:28px;}
h3{font-size:20px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{
  color:var(--primary-dark);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
  transition:color .2s ease;
}
a:hover,a:focus{color:var(--primary);}
img{max-width:100%;height:auto;display:block;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.grid-container{
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:80px 0;}
.section--paper{background:var(--bg);}
.section--white{background:var(--surface);}
.section--warm{background:var(--warm-bg);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head--center .eyebrow{justify-content:center;}
.section-sub{font-size:16px;color:var(--muted);margin-top:12px;line-height:1.85;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--primary);
  margin-bottom:12px;
  font-weight:600;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  background:var(--accent);
  display:inline-block;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  text-decoration:none;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--primary);color:#fff;}
.btn--primary:hover,.btn--primary:focus{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn--ghost{background:var(--surface);color:var(--primary);border-color:var(--primary);}
.btn--ghost:hover,.btn--ghost:focus{background:rgba(180,69,31,.08);color:var(--primary-dark);transform:translateY(-2px);}
.btn--light{background:#fff;color:var(--primary-dark);}
.btn--light:hover,.btn--light:focus{background:#FFF3EC;color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.72);}
.btn--outline-light:hover,.btn--outline-light:focus{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 徽章 ============ */
.badge{
  display:inline-block;
  padding:3px 10px;
  border-radius:var(--radius-badge);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--secondary);
  font-size:12.5px;
  letter-spacing:.02em;
  line-height:1.7;
}
.badge--accent{border-color:rgba(192,138,46,.5);color:#8A6116;background:rgba(192,138,46,.08);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(36,31,28,.08);}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--ink);
}
.brand__mark{
  width:40px;
  height:40px;
  flex:0 0 40px;
  border-radius:10px;
  background:var(--secondary);
  display:flex;
  align-items:center;
  justify-content:center;
}
.brand__mark svg{width:24px;height:24px;display:block;}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__text strong{
  font-family:var(--font-serif);
  font-size:18px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--ink);
}
.brand__text em{
  font-style:normal;
  font-size:12px;
  color:var(--muted);
  letter-spacing:.16em;
  margin-top:2px;
}
.nav-desktop{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-desktop a{
  position:relative;
  font-size:15px;
  color:var(--ink);
  text-decoration:none;
  padding:6px 0;
  transition:color .2s ease;
}
.nav-desktop a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-6px;
  height:3px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-desktop a:hover{color:var(--primary);}
.nav-desktop a:hover::after{transform:scaleX(1);}
.nav-desktop a.is-active{color:var(--primary);font-weight:600;}
.nav-desktop a.is-active::after{transform:scaleX(1);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--surface);
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-mobile{
  display:none;
  flex-direction:column;
  border-top:1px solid var(--line);
  background:var(--surface);
}
.nav-mobile a{
  display:flex;
  align-items:center;
  height:52px;
  padding:0 24px;
  border-bottom:1px solid var(--line);
  font-size:15px;
  color:var(--ink);
  text-decoration:none;
}
.nav-mobile a:hover{background:rgba(180,69,31,.06);color:var(--primary);}
.nav-mobile a.is-active{color:var(--primary);font-weight:600;border-left:3px solid var(--primary);}

/* ============ 页面横幅 ============ */
.page-banner{
  position:relative;
  min-height:268px;
  display:flex;
  align-items:center;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center 32%;
  background-repeat:no-repeat;
  overflow:hidden;
}
.page-banner::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(102deg,rgba(36,31,28,.88) 0%,rgba(36,31,28,.66) 46%,rgba(47,74,66,.34) 100%);
}
.page-banner .grid-container{
  position:relative;
  z-index:2;
  padding-top:46px;
  padding-bottom:46px;
  width:100%;
}
.breadcrumb{
  font-size:13.5px;
  color:rgba(255,255,255,.72);
  margin-bottom:16px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.breadcrumb a{color:rgba(255,255,255,.88);text-decoration:none;}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb span.sep{opacity:.55;}
.page-banner h1{
  color:#fff;
  font-size:36px;
  max-width:760px;
  margin-bottom:14px;
}
.page-banner .banner-sub{
  color:rgba(255,255,255,.82);
  font-size:16px;
  max-width:620px;
  margin-bottom:24px;
}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 简介区 ============ */
.intro-copy h2{margin-bottom:18px;}
.intro-copy p{color:var(--muted);font-size:16px;}
.intro-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.info-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-1);
  height:100%;
  transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.info-card:hover{border-color:var(--primary);box-shadow:var(--shadow-2);transform:translateY(-4px);}
.info-card h3{font-size:19px;margin-bottom:6px;}
.info-card p{font-size:14.5px;color:var(--muted);}
.info-card ul{list-style:none;margin-top:16px;}
.info-card li{
  display:flex;
  gap:12px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:var(--muted);
  line-height:1.8;
}
.info-card li:last-child{border-bottom:0;padding-bottom:0;}
.info-card li .dot{
  flex:0 0 7px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--primary);
  margin-top:11px;
}

/* ============ 编号纵列 ============ */
.timeline{
  list-style:none;
  position:relative;
  margin-top:8px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:27px;
  top:18px;
  bottom:18px;
  width:1px;
  background:var(--line);
}
.timeline__item{
  position:relative;
  display:flex;
  gap:28px;
  padding-bottom:34px;
}
.timeline__item:last-child{padding-bottom:0;}
.timeline__index{
  position:relative;
  z-index:2;
  flex:0 0 56px;
  width:56px;
  height:56px;
  border-radius:50%;
  border:1.5px solid var(--primary);
  background:var(--bg);
  color:var(--primary);
  font-family:var(--font-serif);
  font-size:19px;
  display:flex;
  align-items:center;
  justify-content:center;
  letter-spacing:.02em;
}
.timeline__body{
  flex:1 1 auto;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 28px;
  box-shadow:var(--shadow-1);
  transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.timeline__item:hover .timeline__body{
  border-color:var(--primary);
  box-shadow:var(--shadow-2);
  transform:translateY(-4px);
}
.timeline__body h3{margin-bottom:10px;}
.timeline__body > p{font-size:15.5px;color:var(--muted);}
.point-list{list-style:none;margin-top:14px;}
.point-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--muted);
  line-height:1.8;
  margin-bottom:8px;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  width:9px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
}
.timeline__meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:13.5px;
  color:var(--muted);
}
.timeline__meta strong{color:var(--secondary);font-weight:600;}

/* ============ 适用场景 ============ */
.audience-figure img{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  border-left:4px solid var(--primary);
  width:100%;
  object-fit:cover;
}
.audience-list{list-style:none;}
.audience-list li{
  display:flex;
  gap:16px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.audience-list li:last-child{border-bottom:0;}
.audience-list .num{
  font-family:var(--font-serif);
  font-size:16px;
  color:var(--accent);
  flex:0 0 34px;
  letter-spacing:.04em;
  padding-top:1px;
}
.audience-list h3{font-size:17px;margin-bottom:4px;}
.audience-list p{font-size:14.5px;color:var(--muted);margin:0;}

/* ============ FAQ ============ */
.faq-list{max-width:860px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:10px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease;
}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:18px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  margin-left:auto;
  font-family:var(--font-serif);
  font-size:20px;
  color:var(--muted);
  line-height:1;
  transition:transform .2s ease,color .2s ease;
}
.faq-item[open] summary::after{content:"–";color:var(--primary);}
.faq-item[open]{border-left:3px solid var(--primary);}
.faq-num{
  font-family:var(--font-serif);
  color:var(--muted);
  font-size:15px;
  flex:0 0 auto;
  letter-spacing:.04em;
}
.faq-answer{
  padding:0 24px 20px 62px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--primary);
  color:#fff;
  padding:56px 0;
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.88);font-size:15.5px;max-width:640px;margin-bottom:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--secondary);
  color:rgba(255,255,255,.78);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand__mark{background:rgba(255,255,255,.12);}
.footer-brand strong{
  display:block;
  font-family:var(--font-serif);
  font-size:17px;
  color:#fff;
  letter-spacing:.04em;
}
.footer-brand em{
  font-style:normal;
  display:block;
  font-size:12px;
  letter-spacing:.16em;
  color:rgba(255,255,255,.6);
  margin-top:2px;
}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:320px;}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:10px;font-size:14px;color:rgba(255,255,255,.7);}
.footer-col a{
  color:rgba(255,255,255,.72);
  text-decoration:none;
}
.footer-col a:hover{color:#EFA98A;text-decoration:underline;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  align-items:center;
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.72);text-decoration:none;}
.footer-bottom a:hover{color:#EFA98A;}

/* ============ 底部固定转化条 ============ */
.sticky-cta{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  height:60px;
  z-index:70;
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(36,31,28,.08);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:0 24px;
  transform:translateY(100%);
  opacity:0;
  pointer-events:none;
  transition:transform .3s ease,opacity .3s ease;
}
.sticky-cta.is-visible{transform:translateY(0);opacity:1;pointer-events:auto;}
.sticky-cta__text{font-size:14px;color:var(--ink);}
.sticky-cta .btn{height:42px;padding:0 20px;font-size:14.5px;}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  h1{font-size:33px;}
  .page-banner h1{font-size:31px;}
  h2{font-size:25px;}
  .section{padding:60px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .timeline__item{gap:22px;}
  .timeline::before{left:23px;}
  .timeline__index{flex:0 0 46px;width:46px;height:46px;font-size:17px;}
}
@media screen and (max-width:768px){
  body{font-size:16px;padding-bottom:60px;}
  h1{font-size:27px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  .section{padding:44px 0;}
  .grid-container{padding-left:18px;padding-right:18px;}
  .nav-desktop{display:none;}
  .nav-toggle{display:flex;}
  .nav-mobile.is-open{display:flex;}
  .page-banner{min-height:240px;background-position:center 40%;}
  .page-banner h1{font-size:24px;}
  .page-banner .banner-sub{font-size:15px;margin-bottom:20px;}
  .page-banner .grid-container{padding-top:34px;padding-bottom:34px;}
  .banner-actions .btn{height:44px;padding:0 18px;font-size:14.5px;}
  .timeline__item{flex-direction:column;gap:14px;padding-bottom:28px;}
  .timeline::before{display:none;}
  .timeline__index{width:44px;height:44px;flex:0 0 44px;font-size:16px;}
  .timeline__body{padding:22px 20px;}
  .info-card{padding:22px 20px;}
  .audience-list li{padding:16px 0;}
  .faq-item summary{padding:16px 18px;font-size:15.5px;}
  .faq-answer{padding:0 18px 18px 18px;}
  .cta-band{padding:44px 0;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .sticky-cta{
    transform:translateY(0);
    opacity:1;
    pointer-events:auto;
    padding:0 16px;
    height:58px;
  }
  .sticky-cta__text{font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
}
@media screen and (max-width:480px){
  .page-banner h1{font-size:22px;}
  .banner-actions .btn{width:100%;}
  .sticky-cta__text{max-width:52%;}
  .sticky-cta .btn{height:40px;padding:0 16px;font-size:14px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
  --primary:#B4451F;
  --primary-dark:#8C3214;
  --secondary:#2F4A42;
  --accent:#C08A2E;
  --ink:#241F1C;
  --muted:#6E645C;
  --bg:#FAF6F0;
  --surface:#FFFFFF;
  --line:#E8E0D6;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-badge:4px;
  --shadow-1:0 1px 2px rgba(36,31,28,.05);
  --shadow-2:0 10px 28px rgba(36,31,28,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",STSong,"SimSun",serif;
  --sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  transition:padding-bottom .25s ease;
}
body.has-bar{padding-bottom:72px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.32;color:var(--secondary);margin:0 0 16px}
p{margin:0 0 1em}
a{color:var(--primary-dark);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;transition:color .2s ease}
a:hover{color:var(--primary)}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0 0 1em;padding-left:1.15em}
li{margin-bottom:.35em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:rgba(180,69,31,.16)}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
.section{padding:80px 0}
.section--tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:28px;margin-bottom:12px}
.section-head p{color:var(--muted);margin:0}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.16em;color:var(--accent);margin-bottom:10px}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--accent)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--radius-btn);border:1.5px solid transparent;letter-spacing:.02em;
  text-decoration:none;cursor:pointer;transition:background .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.btn--primary{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 1px 2px rgba(36,31,28,.08)}
.btn--primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(140,50,20,.22)}
.btn--ghost{background:#fff;border-color:var(--primary);color:var(--primary-dark)}
.btn--ghost:hover{background:rgba(180,69,31,.08);color:var(--primary-dark);transform:translateY(-2px)}
.btn--light{background:#fff;border-color:#fff;color:var(--primary-dark)}
.btn--light:hover{background:#F6E7DE;border-color:#F6E7DE;color:var(--primary-dark);transform:translateY(-2px)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.btn[disabled]{opacity:.4;pointer-events:none}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(250,246,240,.96);
  border-bottom:1px solid var(--line);transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-stuck{box-shadow:0 8px 22px rgba(36,31,28,.08);background:#FAF6F0}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--secondary)}
.brand__mark{width:38px;height:38px;border-radius:10px;background:var(--primary);display:flex;align-items:center;justify-content:center;flex:none}
.brand__mark svg{width:24px;height:24px;display:block}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__text strong{font-family:var(--serif);font-size:19px;letter-spacing:.06em;color:var(--secondary)}
.brand__text em{font-style:normal;font-size:12px;letter-spacing:.18em;color:var(--muted)}
.nav-desktop{display:flex;align-items:center;gap:4px}
.nav-desktop a{
  position:relative;padding:10px 14px;font-size:15px;color:var(--ink);
  text-decoration:none;border-radius:var(--radius-btn);transition:color .2s ease,background .2s ease;
}
.nav-desktop a:hover{color:var(--primary);background:rgba(180,69,31,.06)}
.nav-desktop a.is-active{color:var(--primary-dark);font-weight:600}
.nav-desktop a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:2px;background:var(--primary)}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--surface);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--secondary);transition:transform .22s ease,opacity .22s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mobile{display:none;flex-direction:column;background:var(--surface);border-top:1px solid var(--line);padding:4px 24px 14px}
.nav-mobile a{display:flex;align-items:center;min-height:52px;font-size:16px;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line)}
.nav-mobile a:last-child{border-bottom:0}
.nav-mobile a.is-active{color:var(--primary-dark);font-weight:600}
.nav-mobile.is-open{display:flex}

/* 页头横幅 */
.page-banner{position:relative;height:268px;overflow:hidden;background:var(--secondary);display:flex;align-items:flex-end}
.page-banner__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center 26%}
.page-banner__veil{position:absolute;inset:0;background:linear-gradient(96deg,rgba(26,22,20,.86) 0%,rgba(26,22,20,.62) 46%,rgba(140,50,20,.44) 100%)}
.page-banner__inner{position:relative;z-index:2;width:100%;padding-bottom:30px;color:#F7F1E8}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(247,241,232,.72);margin-bottom:14px}
.crumb a{color:rgba(247,241,232,.85);text-decoration:none}
.crumb a:hover{color:#fff;text-decoration:underline}
.crumb .sep{opacity:.5}
.banner-kicker{display:inline-flex;align-items:center;gap:9px;font-size:13px;letter-spacing:.2em;color:#E7BE94;margin-bottom:12px}
.banner-kicker::before{content:"";width:24px;height:1px;background:var(--accent)}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px}
.banner-tags span{font-size:12.5px;color:#F7F1E8;border:1px solid rgba(247,241,232,.34);border-radius:var(--radius-badge);padding:3px 10px}

/* 页面简介 */
.page-intro{padding:56px 0 10px}
.page-intro h1{font-size:40px;letter-spacing:.01em;margin-bottom:18px;max-width:960px}
.page-intro .lede{font-size:17px;line-height:1.9;color:#403833;max-width:860px;margin-bottom:24px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.tag{display:inline-flex;align-items:center;font-size:13px;color:var(--secondary);background:#fff;border:1px solid var(--line);border-radius:var(--radius-badge);padding:5px 12px}
.tag--accent{color:var(--primary-dark);border-color:rgba(180,69,31,.35);background:rgba(180,69,31,.06)}
.intro-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0}
.intro-facts > div{padding-left:18px;border-left:1px solid var(--line)}
.intro-facts > div:first-child{border-left:0;padding-left:0}
.intro-facts strong{display:block;font-family:var(--serif);font-size:19px;color:var(--primary-dark);letter-spacing:.02em}
.intro-facts span{font-size:13px;color:var(--muted)}

/* 两栏不等宽卡片墙 */
.wall{padding-top:6px}
.wall__main > * + *{margin-top:24px}
.wall__side > * + *{margin-top:20px}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:30px;transition:border-color .22s ease,box-shadow .22s ease;
}
.panel:hover{border-color:rgba(180,69,31,.45);box-shadow:var(--shadow-2)}
.panel__kicker{display:block;font-size:12.5px;letter-spacing:.16em;color:var(--accent);margin-bottom:10px}
.panel h3{font-size:21px;margin-bottom:12px}
.panel p{color:#453D37}
.panel__media{margin:0 0 20px}
.panel__media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:8px;border-left:4px solid var(--primary)}
.dir-list{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.dir-list li{border-top:1px solid var(--line);padding-top:16px;margin:0}
.dir-list li:first-child{border-top:0;padding-top:0}
.dir-list h4{font-family:var(--sans);font-size:15px;font-weight:700;color:var(--secondary);margin:0 0 6px;display:flex;align-items:center;gap:9px}
.dir-list h4::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);flex:none}
.dir-list p{margin:0;font-size:15px;color:var(--muted);line-height:1.8}
.checklist{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.checklist li{position:relative;padding-left:28px;font-size:15px;color:#453D37;margin:0}
.checklist li::before{content:"";position:absolute;left:2px;top:9px;width:13px;height:7px;border-left:1.8px solid var(--primary);border-bottom:1.8px solid var(--primary);transform:rotate(-45deg)}
.scene-list{list-style:none;margin:0;padding:0}
.scene-list li{display:grid;grid-template-columns:150px 1fr;gap:16px;padding:16px 0;border-top:1px solid var(--line);margin:0}
.scene-list li:first-child{border-top:0;padding-top:0}
.scene-list b{font-size:14px;color:var(--secondary);font-weight:700}
.scene-list span{font-size:15px;color:var(--muted);line-height:1.8}
.mini-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px;transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.mini-card:hover{border-color:var(--primary);box-shadow:var(--shadow-2);transform:translateY(-4px)}
.mini-card h3{font-size:19px;margin-bottom:16px}
.mini-card__thumb{border-radius:8px;overflow:hidden;margin-bottom:16px;background:#EFE6DA}
.mini-card__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.meta-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.meta-list li{display:flex;justify-content:space-between;gap:12px;font-size:14px;border-bottom:1px dashed var(--line);padding-bottom:10px;margin:0}
.meta-list li:last-child{border-bottom:0;padding-bottom:0}
.meta-list b{font-family:var(--serif);color:var(--primary-dark);font-size:15px;font-weight:600}
.meta-list span{color:var(--muted);text-align:right}
.step-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.step-list li{position:relative;padding-left:38px;font-size:15px;color:#453D37;margin:0;line-height:1.7}
.step-list li::before{
  counter-increment:st;content:counter(st);
  position:absolute;left:0;top:1px;width:26px;height:26px;border-radius:50%;
  background:rgba(180,69,31,.08);border:1px solid rgba(180,69,31,.35);color:var(--primary-dark);
  font-family:var(--serif);font-size:13px;display:flex;align-items:center;justify-content:center;
}
.step-list{counter-reset:st}
.note-line{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin:0}

/* FAQ */
.faq{display:grid;gap:12px;max-width:920px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:0 22px;transition:border-color .2s ease}
.faq details[open]{border-color:rgba(180,69,31,.5)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;padding:18px 0;font-size:16px;font-weight:700;color:var(--secondary)}
.faq summary::-webkit-details-marker{display:none}
.faq summary .num{font-family:var(--serif);font-size:14px;color:var(--muted);line-height:1.9;flex:none}
.faq summary .ico{margin-left:auto;flex:none;width:18px;height:18px;position:relative;margin-top:7px}
.faq summary .ico::before,.faq summary .ico::after{content:"";position:absolute;background:var(--muted);border-radius:2px;transition:transform .2s ease}
.faq summary .ico::before{left:0;top:8px;width:18px;height:1.6px}
.faq summary .ico::after{left:8px;top:0;width:1.6px;height:18px}
.faq details[open] summary .ico::after{transform:scaleY(0)}
.faq__answer{margin:0 0 20px 32px;padding:2px 0 2px 16px;border-left:3px solid var(--primary);font-size:15px;line-height:1.85;color:var(--muted)}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;background:var(--primary);color:#fff;border-radius:var(--radius-card);
  padding:44px;display:grid;grid-template-columns:1.5fr auto;gap:28px;align-items:center;
  box-shadow:0 10px 28px rgba(140,50,20,.18);
}
.cta-band::after{content:"";position:absolute;right:-46px;top:-56px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.07)}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.84);margin:0;font-size:15px;max-width:640px}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}

/* 页脚 */
.site-footer{background:#26211E;color:rgba(250,246,240,.72);padding:64px 0 0;font-size:14px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand .brand__mark{background:var(--primary)}
.footer-brand strong{display:block;font-family:var(--serif);font-size:18px;letter-spacing:.06em;color:#FAF6F0}
.footer-brand em{font-style:normal;font-size:12px;letter-spacing:.18em;color:rgba(250,246,240,.55)}
.footer-desc{max-width:320px;line-height:1.8;color:rgba(250,246,240,.62);margin:0}
.footer-col h4{font-family:var(--sans);font-size:14px;font-weight:700;color:#FAF6F0;margin:0 0 14px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col li{margin:0}
.footer-col a{color:rgba(250,246,240,.72);text-decoration:none;transition:color .2s ease}
.footer-col a:hover{color:#E8A17D;text-decoration:underline}
.footer-col span{color:rgba(250,246,240,.66)}
.footer-bottom{
  border-top:1px solid rgba(250,246,240,.14);display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;padding:18px 0 26px;font-size:13px;color:rgba(250,246,240,.5);
}
.footer-bottom a{color:rgba(250,246,240,.62);text-decoration:none}
.footer-bottom a:hover{color:#E8A17D;text-decoration:underline}

/* 底部转化条 */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;height:60px;background:var(--surface);
  border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(36,31,28,.09);
  display:flex;align-items:center;opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .28s ease,transform .28s ease;
}
.sticky-bar.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.sticky-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.sticky-bar__text{font-size:14px;color:var(--ink)}
.sticky-bar .btn{height:40px;padding:0 18px;font-size:14px}

@media (max-width:1024px){
  .section{padding:60px 0}
  .page-intro h1{font-size:34px}
  .wall__side{margin-top:4px}
}
@media (max-width:900px){
  .nav-desktop{display:none}
  .nav-toggle{display:flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:34px}
}
@media (max-width:768px){
  .section{padding:44px 0}
  .section-head{margin-bottom:28px}
  .grid-container{padding-left:20px;padding-right:20px}
  .page-banner{height:240px}
  .page-intro{padding:40px 0 6px}
  .page-intro h1{font-size:28px}
  .page-intro .lede{font-size:16px}
  .intro-facts{grid-template-columns:1fr 1fr;gap:16px}
  .intro-facts > div{border-left:0;padding-left:0}
  .panel{padding:24px}
  .scene-list li{grid-template-columns:1fr;gap:6px}
  .cta-band h2{font-size:22px}
  .sticky-bar{opacity:1;transform:none;pointer-events:auto}
  .sticky-bar__text{font-size:13px}
}
@media (max-width:520px){
  .page-intro h1{font-size:25px}
  .intro-facts{grid-template-columns:1fr}
  .btn{width:100%}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .sticky-bar .btn{width:auto}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}