/* roulang page: index */
:root{
  --primary:#17624F;
  --primary-dark:#0C3A31;
  --primary-deep:#082A24;
  --primary-soft:rgba(23,98,79,.07);
  --primary-line:rgba(23,98,79,.22);
  --accent:#C0662F;
  --accent-soft:rgba(192,102,47,.12);
  --ink:#1A1F24;
  --ink-2:#5A646E;
  --ink-3:#8A9299;
  --line:#E4DED1;
  --line-2:#EFEAE0;
  --paper:#FBF7F0;
  --card:#FFFFFF;
  --radius-sm:6px;
  --radius:10px;
  --radius-lg:16px;
  --shadow:0 4px 16px rgba(23,98,79,.07);
  --shadow-hover:0 12px 28px rgba(23,98,79,.14);
  --t:200ms ease;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;font-family:var(--font);font-size:16px;line-height:1.75;color:var(--ink);
  background:var(--paper);
  background-image:linear-gradient(rgba(23,98,79,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(23,98,79,.035) 1px,transparent 1px);
  background-size:32px 32px;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:var(--accent)}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid rgba(23,98,79,.45);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section--tight{padding:56px 0}
.section--alt{background:#fff;border-top:1px dashed var(--line);border-bottom:1px dashed var(--line)}
.section-head{margin-bottom:40px;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-soft);border:1px dashed var(--primary-line);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;font-weight:600;
}
h1{font-size:38px;line-height:1.32;font-weight:700;letter-spacing:0}
h2{font-size:27px;line-height:1.4;font-weight:700}
h3{font-size:18px;line-height:1.5;font-weight:600}
.lead{color:var(--ink-2);font-size:16.5px}
.muted{color:var(--ink-2);font-size:14px}
.small{font-size:13px;color:var(--ink-3)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
  min-height:44px;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 3px 0 rgba(12,58,49,.35)}
.btn-primary:hover{background:#124F40;color:#fff;transform:translateY(-1px);box-shadow:0 5px 0 rgba(12,58,49,.35)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary)}
.btn-light{background:#fff;color:var(--primary);border-color:#fff}
.btn-light:hover{background:#F2EDE3;color:var(--primary-dark);transform:translateY(-1px)}
.btn-block{width:100%}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary);font-size:14.5px}
.link-arrow span{transition:transform var(--t)}
.link-arrow:hover span{transform:translateX(3px)}

/* 头图 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(23,98,79,.04),0 6px 18px rgba(23,98,79,.05);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:flex;align-items:center;gap:9px;font-size:17.5px;font-weight:700;color:var(--ink);white-space:nowrap}
.brand:hover{color:var(--primary)}
.brand .brand-mark{
  width:30px;height:30px;border-radius:8px;background:var(--primary);display:flex;align-items:center;justify-content:center;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.28);flex:none;
}
.brand .brand-mark svg{width:17px;height:17px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;padding:22px 14px;color:var(--ink-2);font-size:15px;font-weight:500;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{position:relative;display:flex;align-items:center}
.search-box svg{position:absolute;left:12px;width:16px;height:16px;stroke:var(--ink-3);fill:none;stroke-width:1.8;stroke-linecap:round}
.search-box input{
  width:222px;height:42px;padding:0 12px 0 36px;border-radius:999px;border:1px solid var(--line);
  background:#FCFAF6;color:var(--ink);font-size:14px;transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box input:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(23,98,79,.12)}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:8px;
  align-items:center;justify-content:center;
}
.menu-toggle svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:1.8;stroke-linecap:round}

/* Hero */
.hero{padding:64px 0 72px;border-bottom:1px dashed var(--line)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,1fr);gap:48px;align-items:center}
.hero h1{margin:16px 0 18px}
.hero .lead{max-width:560px;font-size:16.5px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 32px}
.hero-stats{display:flex;gap:0;flex-wrap:wrap}
.hero-stats .stat{padding:0 22px;border-left:1px solid var(--line)}
.hero-stats .stat:first-child{padding-left:0;border-left:0}
.stat-num{font-size:26px;font-weight:700;color:var(--primary);line-height:1.2}
.stat-label{font-size:13px;color:var(--ink-2);margin-top:2px}
.hero-figure{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background:#fff;box-shadow:var(--shadow);padding:10px;
}
.hero-figure::after{
  content:"";position:absolute;inset:10px;border-radius:10px;background:rgba(23,98,79,.04);pointer-events:none;
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:10px}

/* 价值主张带 */
.value-strip{background:var(--primary-soft);border-bottom:1px dashed var(--primary-line)}
.value-strip .inner{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:26px 0;align-items:center}
.value-item{display:flex;gap:12px;align-items:flex-start}
.value-item svg{width:22px;height:22px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none;margin-top:2px}
.value-item strong{display:block;font-size:15.5px;color:var(--ink)}
.value-item p{font-size:13.5px;color:var(--ink-2);line-height:1.7;margin-top:2px}

/* 功能分组 */
.feature-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:44px;align-items:start}
.feature-aside{position:sticky;top:96px}
.feature-aside h2{margin:12px 0 14px}
.feature-aside p{color:var(--ink-2);font-size:15px;margin-bottom:22px}
.feature-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.feature-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  box-shadow:var(--shadow);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--primary-line)}
.feature-card .fc-icon{
  width:42px;height:42px;border-radius:10px;background:var(--primary-soft);border:1px dashed var(--primary-line);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.feature-card .fc-icon svg{width:21px;height:21px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.feature-card h3{margin-bottom:8px}
.feature-card p{color:var(--ink-2);font-size:14.5px;line-height:1.75}
.feature-card.wide{grid-column:span 2;display:grid;grid-template-columns:auto minmax(0,1fr);gap:20px;align-items:start}
.feature-card.wide .fc-icon{margin-bottom:0}

/* 使用场景 步骤带 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;position:relative}
.steps::before{
  content:"";position:absolute;top:23px;left:6%;right:6%;height:1px;background:repeating-linear-gradient(90deg,var(--primary-line) 0 6px,transparent 6px 12px);
}
.step{position:relative;padding-top:0}
.step-num{
  width:46px;height:46px;border-radius:50%;border:1px solid var(--primary);background:var(--paper);
  display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--primary);font-size:15px;
  position:relative;z-index:1;margin-bottom:16px;
}
.step h3{margin-bottom:8px;font-size:16.5px}
.step p{color:var(--ink-2);font-size:14.5px;line-height:1.75}

/* 案例 */
.case-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:22px}
.case-col{display:grid;gap:22px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--primary-line)}
.case-card img{width:100%;aspect-ratio:3/2;object-fit:cover}
.case-body{padding:22px}
.case-body h3{margin-bottom:10px}
.case-body p{color:var(--ink-2);font-size:14.5px;line-height:1.75;margin-bottom:16px}
.case-metric{display:flex;align-items:baseline;gap:8px;margin-bottom:14px}
.case-metric b{font-size:31px;font-weight:700;color:var(--accent);line-height:1}
.case-metric span{font-size:13.5px;color:var(--ink-2)}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;align-items:stretch}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 24px;
  display:flex;flex-direction:column;position:relative;box-shadow:var(--shadow);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.price-card.is-featured{border-color:var(--primary);box-shadow:0 14px 32px rgba(23,98,79,.15)}
.price-card.is-featured::before{
  content:"推荐";position:absolute;top:-13px;left:24px;background:var(--accent);color:#fff;
  font-size:12.5px;font-weight:700;letter-spacing:.06em;padding:4px 12px;border-radius:999px;
}
.price-name{font-size:15px;font-weight:700;color:var(--ink)}
.price-desc{font-size:13.5px;color:var(--ink-2);margin-top:6px;min-height:42px}
.price-amount{margin:18px 0 6px;display:flex;align-items:baseline;gap:6px}
.price-amount b{font-size:34px;font-weight:700;color:var(--primary);line-height:1}
.price-amount span{font-size:13.5px;color:var(--ink-3)}
.price-list{margin:20px 0 26px;display:grid;gap:11px;flex:1}
.price-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.6}
.price-list svg{width:17px;height:17px;stroke:var(--primary);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none;margin-top:4px}

/* 资讯列表 */
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;margin-bottom:34px}
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  display:flex;flex-direction:column;gap:12px;box-shadow:var(--shadow);color:var(--ink);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--primary-line);color:var(--ink)}
.post-tag{
  align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--primary);background:var(--primary-soft);
  border:1px dashed var(--primary-line);padding:3px 10px;border-radius:999px;
}
.post-title{
  font-size:16.5px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover .post-title{color:var(--primary)}
.post-sum{
  color:var(--ink-2);font-size:14px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line-2);font-size:12.5px;color:var(--ink-3)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius);
  background:#fff;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state .circle{
  width:56px;height:56px;border-radius:50%;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;
}
.empty-state .circle svg{width:24px;height:24px;stroke:var(--primary);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* FAQ */
.faq-list{border-top:1px dashed var(--line)}
.faq-item{border-bottom:1px dashed var(--line)}
.faq-q{
  width:100%;background:transparent;border:0;padding:22px 0;display:flex;align-items:flex-start;gap:18px;
  text-align:left;color:var(--ink);font-size:16px;font-weight:600;line-height:1.6;
}
.faq-q:hover{color:var(--primary)}
.faq-q .faq-sign{
  margin-left:auto;flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--primary-line);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;line-height:1;
  transition:background var(--t),color var(--t);
}
.faq-q[aria-expanded="true"] .faq-sign{background:var(--primary);color:#fff;border-color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 200ms ease}
.faq-a p{color:var(--ink-2);font-size:14.8px;line-height:1.85;padding:0 46px 24px 0}
.faq-a.is-open{padding-top:0}
.faq-item.is-open .faq-a{padding-bottom:0}

/* CTA 带 */
.cta-band{
  background:var(--primary-dark);color:#fff;border-radius:var(--radius-lg);padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.035) 0 10px,transparent 10px 20px);
}
.cta-band h2{color:#fff;font-size:26px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin-top:10px;max-width:620px}

/* 页脚 */
.site-footer{background:var(--primary-deep);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(3,minmax(0,1fr));gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:9px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-brand .brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--primary);display:flex;align-items:center;justify-content:center;flex:none;
}
.footer-brand .brand-mark svg{width:16px;height:16px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.site-footer p{font-size:14px;line-height:1.85}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}

/* 移动端抽屉 */
@media (max-width:1024px){
  .hero-grid{gap:32px}
  .feature-layout{grid-template-columns:1fr;gap:28px}
  .feature-aside{position:static}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .steps::before{display:none}
  .case-layout{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .search-box input{width:180px}
}
@media (max-width:840px){
  .menu-toggle{display:flex}
  .main-nav{
    position:fixed;top:68px;left:0;right:0;bottom:0;background:#fff;flex-direction:column;align-items:stretch;
    gap:0;padding:16px 20px 32px;margin:0;transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:opacity var(--t),transform var(--t),visibility var(--t);overflow-y:auto;border-top:1px solid var(--line);
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-link{padding:16px 4px;border-bottom:1px dashed var(--line-2);font-size:16px}
  .nav-link::after{display:none}
  .header-tools .search-box{display:none}
  .header-tools .btn{display:none}
  .main-nav .nav-mobile-extra{display:block;margin-top:22px}
  .main-nav .nav-mobile-extra .search-box{display:flex;margin-bottom:14px}
  .main-nav .nav-mobile-extra .search-box input{width:100%}
  .main-nav .nav-mobile-extra .btn{display:inline-flex;width:100%}
}
@media (min-width:841px){.nav-mobile-extra{display:none}}
@media (max-width:640px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
  h1{font-size:26px}
  h2{font-size:21px}
  .hero{padding:40px 0 48px}
  .hero-grid{grid-template-columns:1fr}
  .hero-figure{order:2}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-stats .stat{padding:0 14px}
  .stat-num{font-size:22px}
  .value-strip .inner{grid-template-columns:1fr;gap:18px;padding:22px 0}
  .feature-cards{grid-template-columns:1fr;gap:16px}
  .feature-card.wide{grid-column:span 1;grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .cta-band{padding:34px 24px;border-radius:14px}
  .cta-band h2{font-size:21px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .faq-a p{padding-right:0}
}

/* roulang page: article */
:root{
  --primary:#12695D;
  --primary-dark:#0C4A42;
  --primary-deep:#083A34;
  --primary-soft:#E7F1EF;
  --primary-soft-2:#F1F7F5;
  --accent:#E4813C;
  --text:#1A1F24;
  --text-2:#5A646E;
  --text-3:#8B949C;
  --border:#E6E9EC;
  --bg:#F7F9FA;
  --card:#FFFFFF;
  --radius-xs:6px;
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:18px;
  --shadow-sm:0 4px 16px rgba(18,105,93,.06);
  --shadow-md:0 10px 30px rgba(18,105,93,.10);
  --shadow-lg:0 18px 44px rgba(18,105,93,.14);
  --container:1200px;
  --gap:24px;
  --trans:200ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:linear-gradient(rgba(18,105,93,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(18,105,93,.028) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--trans),background-color var(--trans),border-color var(--trans);}
a:hover{color:var(--primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:600;line-height:1.35;color:var(--text);letter-spacing:0;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid rgba(18,105,93,.45);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:72px 0;}
.section-tight{padding:48px 0;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 10px rgba(16,32,44,.04);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  white-space:nowrap;
  flex-shrink:0;
}
.brand:hover{color:var(--primary);}
.brand-mark{
  width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--primary);
  flex-shrink:0;
}
.brand-mark svg{width:19px;height:19px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--radius-sm);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:8px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  transform:scaleX(0);
  transition:transform var(--trans);
}
.nav-link:hover{color:var(--text);background:var(--primary-soft-2);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-mobile-extra{display:none;}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;height:42px;
  padding:0 14px;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:22px;
  transition:border-color var(--trans),background-color var(--trans),box-shadow var(--trans);
}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(18,105,93,.10);}
.search-box svg{width:17px;height:17px;flex-shrink:0;fill:none;stroke:var(--text-3);stroke-width:1.8;stroke-linecap:round;}
.search-box input{
  flex:1;min-width:0;
  border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:var(--text-3);}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  color:var(--text-2);
}
.menu-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:11px 24px;
  font-size:15px;font-weight:600;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color var(--trans),color var(--trans),border-color var(--trans),transform var(--trans),box-shadow var(--trans);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(18,105,93,.20);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(18,105,93,.26);}
.btn-ghost{background:#fff;color:var(--primary);border-color:rgba(18,105,93,.35);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary);}
.btn-light{background:#fff;color:var(--primary-dark);}
.btn-light:hover{background:#EAF3F1;color:var(--primary-deep);transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- Breadcrumb ---------- */
.crumb-bar{padding:20px 0 0;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#C6CDD3;}
.crumb .current{color:var(--text-2);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- Article head ---------- */
.article-head{padding:26px 0 0;}
.article-head-inner{max-width:820px;margin:0 auto;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  font-size:13px;font-weight:600;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:999px;
  margin-bottom:18px;
}
.article-title{
  font-size:36px;
  line-height:1.32;
  font-weight:700;
  letter-spacing:0;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;
  font-size:13px;
  color:var(--text-3);
}
.article-meta .pill{
  display:inline-flex;align-items:center;
  padding:4px 12px;
  font-size:12px;font-weight:600;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:999px;
}
.article-meta .dot{color:#C6CDD3;}

/* ---------- Cover ---------- */
.cover-wrap{max-width:820px;margin:28px auto 0;}
.cover-figure{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  background:#EDF1F2;
  box-shadow:var(--shadow-sm);
}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.cover-caption{
  margin-top:10px;
  font-size:13px;
  color:var(--text-3);
  text-align:center;
}

/* ---------- Article body ---------- */
.article-main{padding:44px 0 0;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,820px);
  justify-content:center;
  gap:40px;
}
.article-body{
  max-width:820px;
  font-size:16.5px;
  line-height:1.9;
  color:#252B31;
}
.article-body > * + *{margin-top:20px;}
.article-body p{color:#252B31;}
.article-body h2{
  font-size:23px;
  line-height:1.45;
  margin-top:38px;
  margin-bottom:14px;
  padding-left:14px;
  border-left:4px solid var(--primary);
  color:var(--text);
}
.article-body h3{
  font-size:19px;
  margin-top:30px;
  margin-bottom:12px;
  color:var(--text);
}
.article-body h4{font-size:17px;margin-top:24px;margin-bottom:10px;color:var(--text-2);}
.article-body ul,.article-body ol{padding-left:22px;margin:18px 0;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:8px 0;padding-left:2px;}
.article-body li::marker{color:var(--primary);}
.article-body blockquote{
  margin:24px 0;
  padding:16px 20px;
  background:var(--primary-soft-2);
  border-left:3px solid var(--primary);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-2);
}
.article-body blockquote p{margin:0;color:var(--text-2);}
.article-body img{border-radius:10px;margin:22px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  overflow:hidden;
}
.article-body th,.article-body td{
  border:1px solid var(--border);
  padding:12px 14px;
  text-align:left;
}
.article-body th{background:var(--primary-soft-2);font-weight:600;color:var(--text);}
.article-body tbody tr:nth-child(even){background:#FAFCFC;}
.article-body pre{
  background:#F2F5F6;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:16px 18px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
.article-body code{
  background:#F2F5F6;
  border-radius:4px;
  padding:2px 6px;
  font-size:.92em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
.article-body pre code{background:none;padding:0;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0;}

.notice-card{
  max-width:820px;
  margin:0 auto;
  padding:44px 28px;
  background:#fff;
  border:1px dashed var(--border);
  border-radius:var(--radius);
  text-align:center;
  box-shadow:var(--shadow-sm);
}
.notice-icon{
  width:56px;height:56px;
  margin:0 auto 16px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:rgba(18,105,93,.10);
}
.notice-icon svg{width:26px;height:26px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.notice-card h2{font-size:20px;margin-bottom:10px;}
.notice-card p{font-size:15px;color:var(--text-2);margin-bottom:20px;}

/* ---------- Tags ---------- */
.tag-row{
  max-width:820px;
  margin:40px auto 0;
  padding-top:24px;
  border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
}
.tag-label{font-size:13px;color:var(--text-3);}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;
  font-size:13px;
  color:var(--primary);
  background:var(--primary-soft);
  border:1px solid rgba(18,105,93,.14);
  border-radius:999px;
  transition:background-color var(--trans),transform var(--trans);
}
.tag:hover{background:#D8E9E6;transform:translateY(-1px);color:var(--primary-dark);}

/* ---------- Prev / Next ---------- */
.pager{
  max-width:820px;
  margin:32px auto 0;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.pager-card{
  display:block;
  padding:20px 22px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform var(--trans),box-shadow var(--trans),border-color var(--trans);
}
.pager-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(18,105,93,.24);}
.pager-card .dir{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--text-3);
  display:block;
  margin-bottom:8px;
}
.pager-card .ttl{
  font-size:15.5px;
  font-weight:600;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.pager-card.is-next{text-align:right;}
.pager-card.is-next .ttl{margin-left:auto;}

.back-row{max-width:820px;margin:26px auto 0;display:flex;justify-content:center;}

/* ---------- Related ---------- */
.band{
  margin-top:72px;
  padding:56px 0;
  background:var(--primary-soft-2);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.band-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:26px;
}
.band-head h2{font-size:24px;}
.band-head p{font-size:14px;color:var(--text-2);margin-top:6px;}
.more-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
  white-space:nowrap;
}
.more-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--trans);}
.more-link:hover svg{transform:translateX(3px);}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.info-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:transform var(--trans),box-shadow var(--trans),border-color var(--trans);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(18,105,93,.22);}
.info-card .thumb{background:#EDF1F2;overflow:hidden;}
.info-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.info-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.info-card .kicker{font-size:12px;font-weight:600;color:var(--primary);}
.info-card h3{
  font-size:16.5px;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.info-card p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.info-card .foot{margin-top:auto;font-size:12.5px;color:var(--text-3);}

/* ---------- CTA ---------- */
.cta-band{
  margin:72px 0 0;
  background:linear-gradient(120deg,var(--primary-dark),var(--primary-deep));
  border-radius:var(--radius-lg);
  padding:52px 44px;
  color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{color:#fff;font-size:26px;line-height:1.4;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin-top:10px;max-width:56ch;}
.cta-band .btn-light{flex-shrink:0;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:80px;
  background:var(--primary-deep);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:600;color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:34ch;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a{color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .search-box{width:180px;}
  .nav-link{padding:0 10px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-title{font-size:31px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .header-inner{min-height:64px;gap:14px;}
  .menu-toggle{display:inline-flex;}
  .header-tools .search-box{display:none;}
  .header-tools .btn-primary{display:none;}
  .main-nav{
    position:fixed;
    top:64px;left:0;right:0;bottom:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:20px;
    background:#fff;
    overflow-y:auto;
    z-index:90;
    border-top:1px solid var(--border);
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:var(--radius-sm);}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--primary-soft);}
  .nav-mobile-extra{display:flex;flex-direction:column;gap:12px;margin-top:18px;padding-top:20px;border-top:1px solid var(--border);}
  .nav-mobile-extra .search-box{width:100%;}
  .article-title{font-size:27px;line-height:1.36;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .section{padding:52px 0;}
  .pager{grid-template-columns:1fr;}
  .pager-card.is-next{text-align:left;}
  .card-grid{grid-template-columns:1fr;gap:16px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 24px;margin-top:52px;}
  .cta-band h2{font-size:22px;}
  .cta-band .btn-light{width:100%;}
  .band{margin-top:52px;padding:44px 0;}
  .band-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .site-footer{margin-top:56px;padding-top:48px;}
}
@media (max-width:520px){
  .article-title{font-size:24px;}
  .crumb .current{max-width:32ch;}
  .footer-grid{grid-template-columns:1fr;}
  .tag-row{gap:8px;}
  .tag{font-size:12.5px;padding:5px 12px;}
  .cta-band h2{font-size:20px;}
  .back-row .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --primary:#12695D;
  --primary-light:#1F7A6A;
  --primary-dark:#0C4A42;
  --primary-deep:#08302B;
  --accent:#E4813C;
  --accent-soft:#FBEBDD;
  --text:#1A1F24;
  --muted:#5A646E;
  --faint:#8B949C;
  --border:#E6E9EC;
  --border-strong:#D8DDE1;
  --paper:#F1EDE4;
  --line-warm:#DCD5C9;
  --bg:#F7F9FA;
  --card:#FFFFFF;
  --radius:14px;
  --radius-sm:8px;
  --radius-lg:18px;
  --shadow:0 4px 16px rgba(18,105,93,.06);
  --shadow-hover:0 10px 26px rgba(18,105,93,.12);
  --shadow-hard:4px 4px 0 rgba(12,74,66,.10);
  --ease:200ms cubic-bezier(.4,0,.2,1);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:0;}
p{margin:0;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid rgba(18,105,93,.45);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(18,105,93,.18);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--primary);border-color:rgba(18,105,93,.35);}
.btn-ghost:hover{background:rgba(18,105,93,.07);color:var(--primary-dark);}
.btn-light{background:#fff;color:var(--primary-dark);}
.btn-light:hover{background:#F2F7F6;color:var(--primary-deep);transform:translateY(-1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;color:var(--primary);
}
.link-arrow svg{width:16px;height:16px;transition:transform var(--ease);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 徽标 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  font-size:13px;font-weight:600;
  color:var(--primary-dark);
  background:rgba(18,105,93,.09);
  border-radius:999px;
  letter-spacing:.2px;
}
.tag{
  display:inline-block;
  padding:3px 10px;
  font-size:12px;
  font-weight:600;
  color:var(--primary-dark);
  background:rgba(18,105,93,.09);
  border-radius:6px;
}
.tag-warm{color:#8A4B1C;background:var(--accent-soft);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 3px rgba(16,40,36,.05);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:68px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:600;color:var(--text);
  flex:0 0 auto;
}
.brand:hover{color:var(--primary-dark);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;flex:0 0 32px;
  border-radius:9px;
  background:var(--primary);
  color:#fff;
}
.brand-mark svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:22px 14px;
  font-size:15px;font-weight:500;color:var(--text);
  transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;
  height:2px;border-radius:2px;background:transparent;
  transition:background var(--ease);
}
.nav-link:hover{color:var(--primary);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{background:var(--primary);}
.nav-mobile-extra{display:none;}
.header-tools{display:flex;align-items:center;gap:12px;}
.search-box{
  position:relative;
  display:flex;align-items:center;
  width:220px;
  background:#F4F6F7;
  border:1px solid var(--border);
  border-radius:999px;
  padding:0 14px;
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.search-box svg{
  width:16px;height:16px;flex:0 0 16px;
  fill:none;stroke:var(--faint);stroke-width:1.9;stroke-linecap:round;
}
.search-box input{
  width:100%;height:42px;
  border:0;background:transparent;outline:none;
  padding-left:9px;font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:var(--faint);}
.search-box:focus-within{border-color:rgba(18,105,93,.5);background:#fff;box-shadow:0 0 0 3px rgba(18,105,93,.10);}
.menu-toggle{
  display:none;
  width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:10px;background:#fff;
}
.menu-toggle svg{width:22px;height:22px;fill:none;stroke:var(--text);stroke-width:1.9;stroke-linecap:round;}

/* ---------- 面包屑 ---------- */
.crumbs{
  padding:18px 0 0;
  font-size:13px;color:var(--muted);
}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs li{display:inline-flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:var(--faint);}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs .current{color:var(--text);font-weight:600;}

/* ---------- 内页头部 ---------- */
.page-hero{padding:26px 0 0;}
.page-hero-inner{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
  padding:34px 0 40px;
}
.page-hero h1{
  font-size:38px;line-height:1.3;margin-bottom:16px;
}
.page-hero h1 .hl{
  color:var(--primary-dark);
  background:linear-gradient(transparent 62%,rgba(18,105,93,.16) 62%);
  padding:0 2px;
}
.page-hero .lede{
  font-size:16px;color:var(--muted);max-width:620px;
}
.hero-points{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;
}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;
  font-size:13.5px;font-weight:500;
  background:#fff;border:1px solid var(--border);border-radius:999px;
  color:var(--text);
}
.hero-points li::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--accent);flex:0 0 7px;
}
.hero-figure{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--border-strong);
  background:var(--paper);
  box-shadow:var(--shadow-hard);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-figure figcaption{
  padding:11px 16px;font-size:13px;color:var(--muted);
  background:#fff;border-top:1px dashed var(--line-warm);
}

/* ---------- 横幅 ---------- */
.banner-strip{
  margin:6px 0 0;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border-strong);
  background:var(--paper);
}
.banner-strip img{width:100%;height:210px;object-fit:cover;}

/* ---------- 板块通用 ---------- */
.section{padding:74px 0;}
.section-tight{padding:56px 0;}
.section-paper{background:var(--paper);border-top:1px solid var(--line-warm);border-bottom:1px solid var(--line-warm);}
.section-dark{
  background:var(--primary-deep);
  color:#EAEFEE;
}
.section-dark .section-head h2,.section-dark h2{color:#fff;}
.section-dark p{color:#C4D3D0;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head h2{font-size:27px;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;}
.section-head .kicker{
  display:inline-block;margin-bottom:12px;
  font-size:12.5px;font-weight:700;letter-spacing:1.5px;
  color:var(--primary);
  text-transform:uppercase;
}
.section-dark .kicker{color:#7FBBAF;}

/* ---------- 左图右文 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:46px;align-items:center;
}
.split-figure{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border-strong);
  background:var(--paper);
  box-shadow:var(--shadow-hard);
}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.split-body h2{font-size:26px;margin-bottom:16px;}
.split-body p{color:var(--muted);margin-bottom:16px;}
.check-list li{
  position:relative;
  padding:12px 0 12px 34px;
  border-bottom:1px dashed var(--line-warm);
  font-size:15.5px;
}
.check-list li:last-child{border-bottom:0;}
.check-list li::before{
  content:"";position:absolute;left:4px;top:20px;
  width:14px;height:8px;
  border-left:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:rotate(-45deg);
}
.check-list strong{display:block;font-weight:600;margin-bottom:2px;}
.check-list span{font-size:14px;color:var(--muted);}

/* ---------- 信息卡 2 列 ---------- */
.info-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.info-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(18,105,93,.22);}
.info-card .icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;margin-bottom:16px;
  border-radius:11px;
  background:rgba(18,105,93,.09);
  color:var(--primary);
}
.info-card .icon svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.info-card h3{font-size:17.5px;margin-bottom:10px;}
.info-card p{font-size:14.5px;color:var(--muted);}
.info-card .meta{
  margin-top:16px;padding-top:14px;
  border-top:1px dashed var(--line-warm);
  font-size:13px;color:var(--faint);
}

/* ---------- 步骤流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step;}
.step{
  position:relative;
  padding:26px 22px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);
}
.step::after{
  content:"";position:absolute;top:44px;right:-14px;width:24px;height:1px;
  background:rgba(255,255,255,.22);
}
.step:last-child::after{display:none;}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;margin-bottom:16px;
  border-radius:50%;border:1.5px solid rgba(127,187,175,.7);
  color:#9FD3C7;font-size:14px;font-weight:700;
}
.step h3{font-size:16.5px;color:#fff;margin-bottom:10px;}
.step p{font-size:14px;color:#B6C9C5;}

/* ---------- 要点双列清单 ---------- */
.notes{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px 40px;
}
.note{
  display:flex;gap:16px;
  padding:22px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.note:hover{border-color:rgba(18,105,93,.22);box-shadow:var(--shadow);}
.note-index{
  flex:0 0 30px;width:30px;height:30px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  background:var(--primary-deep);color:#fff;
  font-size:13px;font-weight:700;
}
.note h3{font-size:16px;margin-bottom:6px;}
.note p{font-size:14.5px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{
  max-width:880px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
}
.faq-item+.faq-item{border-top:1px solid var(--border);}
.faq-q{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  width:100%;
  padding:20px 24px;
  text-align:left;
  font-size:15.5px;font-weight:600;color:var(--text);
  transition:background var(--ease),color var(--ease);
}
.faq-q:hover{background:#F5F9F8;color:var(--primary-dark);}
.faq-q .sign{
  flex:0 0 26px;width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border-strong);border-radius:50%;
  font-size:16px;font-weight:500;color:var(--primary);
  transition:transform var(--ease),background var(--ease),border-color var(--ease);
}
.faq-item.open .faq-q{color:var(--primary-dark);background:#F5F9F8;}
.faq-item.open .faq-q .sign{background:var(--primary);border-color:var(--primary);color:#fff;transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 220ms cubic-bezier(.4,0,.2,1);
}
.faq-a-inner{
  padding:0 24px 22px;
  font-size:14.5px;color:var(--muted);
  max-width:720px;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--primary-dark);
  color:#fff;
  border-radius:var(--radius-lg);
  padding:48px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 18px 40px rgba(12,74,66,.18);
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:auto -60px -80px auto;
  width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.05);
}
.cta-band h2{font-size:25px;color:#fff;margin-bottom:10px;}
.cta-band p{font-size:15px;color:#BCD2CE;max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:80px;
  background:var(--primary-deep);
  color:#B9C9C6;
  padding:62px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.15fr;
  gap:40px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:16.5px;font-weight:600;color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.site-footer p{font-size:14px;line-height:1.85;color:#9FB4B1;}
.footer-col h4{
  font-size:14.5px;color:#fff;margin-bottom:16px;font-weight:600;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:#B9C9C6;}
.footer-col a:hover{color:#fff;}
.footer-col span{font-size:14px;color:#9FB4B1;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13px;color:#8AA09D;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .page-hero-inner{grid-template-columns:1fr;gap:26px;padding-bottom:30px;}
  .page-hero h1{font-size:31px;}
  .hero-figure img{aspect-ratio:16/9;}
  .split{grid-template-columns:1fr;gap:30px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step::after{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .section{padding:60px 0;}
}
@media (max-width:860px){
  .main-nav{
    position:fixed;
    inset:68px 0 0 auto;
    width:min(86vw,360px);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:18px 20px 26px;
    background:#fff;
    border-left:1px solid var(--border);
    box-shadow:-14px 0 34px rgba(16,40,36,.12);
    transform:translateX(102%);
    transition:transform 240ms cubic-bezier(.4,0,.2,1);
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{
    padding:15px 6px;border-bottom:1px solid var(--border);
    font-size:16px;
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--primary);}
  .nav-mobile-extra{
    display:flex;flex-direction:column;gap:12px;
    margin-top:22px;
  }
  .nav-mobile-extra .search-box{width:100%;}
  .menu-toggle{display:inline-flex;}
  .header-tools .search-box,.header-tools .btn{display:none;}
  .info-grid,.notes{grid-template-columns:1fr;}
  .banner-strip img{height:170px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  body{font-size:15.5px;}
  .page-hero h1{font-size:25px;}
  .section-head h2{font-size:22px;}
  .split-body h2{font-size:21px;}
  .section{padding:48px 0;}
  .section-tight{padding:42px 0;}
  .hero-figure img{aspect-ratio:4/3;}
  .steps{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 24px;}
  .cta-band h2{font-size:21px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{padding:17px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 20px;}
  .brand span:last-child{font-size:16px;}
  .crumbs{padding-top:14px;}
}

/* roulang page: category2 */
:root{
  --primary:#12695D;
  --primary-600:#0F5A50;
  --primary-dark:#0C4A42;
  --primary-soft:#E8F2F0;
  --accent:#E4813C;
  --accent-soft:#FBEEE3;
  --ink:#1A1F24;
  --ink-2:#5A646E;
  --ink-3:#8A939C;
  --line:#E6E9EC;
  --line-soft:#EDE7DA;
  --bg:#F7F9FA;
  --paper:#FBF8F2;
  --card:#FFFFFF;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --shadow-sm:0 4px 16px rgba(18,105,93,.06);
  --shadow-md:0 10px 28px rgba(18,105,93,.10);
  --shadow-hard:4px 4px 0 rgba(18,105,93,.14);
  --container:1200px;
  --sp:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-600);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);line-height:1.3;letter-spacing:0;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(18,105,93,.4);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 3px rgba(26,31,36,.04);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:17px;font-weight:600;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;border-radius:8px;
  background:var(--primary);display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2;stroke-linejoin:round;stroke-linecap:round;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--ink-2);border-radius:var(--r-sm);transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;background:var(--primary);border-radius:2px;
}
.nav-mobile-extra{display:none;}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:7px;width:220px;height:40px;padding:0 12px;
  border:1px solid var(--line);border-radius:999px;background:#FBFCFC;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,105,93,.12);}
.search-box svg{width:16px;height:16px;flex:0 0 16px;fill:none;stroke:var(--ink-3);stroke-width:2;stroke-linecap:round;}
.search-box input{
  border:none;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-sm);border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-sm);}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary);}
.btn-light{background:#fff;color:var(--primary);}
.btn-light:hover{background:#F2F7F6;color:var(--primary-dark);transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.menu-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);cursor:pointer;
}
.menu-toggle svg{width:20px;height:20px;fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;}

/* ---------- 页面头部 ---------- */
.page-head{padding:36px 0 28px;background:#fff;border-bottom:1px solid var(--line);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:16px;}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#CBD2D6;}
.breadcrumb .current{color:var(--ink-2);}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;
  border:1px dashed rgba(18,105,93,.35);
}
.page-head h1{font-size:38px;margin:14px 0 14px;max-width:900px;}
.page-desc{font-size:16px;color:var(--ink-2);max-width:820px;}

/* ---------- 窄横幅 ---------- */
.page-banner{padding:28px 0 0;}
.banner-figure{margin:0;border-radius:var(--r-lg);overflow:hidden;border:2px solid var(--line-soft);box-shadow:var(--shadow-hard);}
.banner-figure img{width:100%;height:220px;object-fit:cover;background:#EDE7DA;}
.banner-caption{font-size:13px;color:var(--ink-3);padding:10px 4px 0;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp) 0;}
.section-tight{padding:56px 0;}
.section-paper{background:var(--paper);}
.section-white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:26px;margin-bottom:12px;}
.section-intro{color:var(--ink-2);font-size:15.5px;}

/* ---------- 密集列表 ---------- */
.dense-block{margin-bottom:8px;}
.dense-block > h2{font-size:24px;margin-bottom:10px;}
.dense-block > .section-intro{margin-bottom:24px;}
.dense-list{border-top:2px solid var(--line-soft);}
.dense-item{
  display:flex;gap:18px;padding:20px 18px;border-bottom:1px dashed var(--line-soft);
  background:#fff;transition:background .2s ease,transform .2s ease;
}
.dense-item:hover{background:#FCFAF6;transform:translateX(2px);}
.dense-index{
  flex:0 0 44px;height:34px;border-radius:var(--r-sm);border:2px solid var(--primary);
  color:var(--primary);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
  background:#fff;
}
.dense-body h3{font-size:16.5px;margin-bottom:6px;}
.dense-body p{font-size:14.5px;color:var(--ink-2);}
.dense-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12.5px;
  background:var(--primary-soft);color:var(--primary);border:1px solid rgba(18,105,93,.16);
}
.tag-warm{background:var(--accent-soft);color:#B4611F;border-color:rgba(228,129,60,.28);}

/* ---------- 右侧要点栏 ---------- */
.side-sticky{position:sticky;top:92px;}
.side-panel{
  background:#fff;border:2px solid var(--line-soft);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow-hard);margin-bottom:20px;
}
.side-panel h3{font-size:17px;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--line-soft);}
.check-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);padding:7px 0;}
.check-list svg{width:18px;height:18px;flex:0 0 18px;margin-top:3px;fill:none;stroke:var(--primary);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}
.side-panel-dark{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;box-shadow:0 10px 24px rgba(12,74,66,.28);}
.side-panel-dark h3{color:#fff;border-bottom-color:rgba(255,255,255,.2);}
.side-panel-dark p{color:rgba(255,255,255,.82);font-size:14.5px;margin-bottom:16px;}
.side-items li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.18);font-size:14px;}
.side-items li:last-child{border-bottom:none;}
.side-items span:first-child{color:rgba(255,255,255,.68);}
.side-items span:last-child{color:#fff;font-weight:600;text-align:right;}

/* ---------- 横向场景分区 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.scene-card{
  background:#fff;border:2px solid var(--line-soft);border-radius:var(--r-lg);padding:22px;
  box-shadow:var(--shadow-hard);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(18,105,93,.14);border-color:rgba(18,105,93,.24);}
.scene-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.scene-icon svg{width:22px;height:22px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.scene-card h3{font-size:17px;margin-bottom:8px;}
.scene-card p{font-size:14.5px;color:var(--ink-2);}
.scene-card ol{margin-top:14px;counter-reset:s;}
.scene-card ol li{
  position:relative;padding-left:22px;font-size:14px;color:var(--ink-2);margin-bottom:8px;counter-increment:s;
}
.scene-card ol li::before{
  content:counter(s);position:absolute;left:0;top:2px;width:16px;height:16px;border-radius:50%;
  border:1.5px solid var(--primary);color:var(--primary);font-size:10.5px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
}

/* ---------- 图文区 ---------- */
.split-figure{margin:0;border-radius:var(--r-lg);overflow:hidden;border:2px solid var(--line-soft);box-shadow:var(--shadow-hard);}
.split-figure img{width:100%;height:300px;object-fit:cover;background:#EDE7DA;}

/* ---------- 两列对比 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.compare-card{background:#fff;border:2px solid var(--line-soft);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-hard);}
.compare-card h3{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.dot{width:9px;height:9px;border-radius:50%;background:var(--primary);display:inline-block;}
.dot-warm{background:var(--accent);}
.compare-card ul li{position:relative;padding-left:18px;font-size:14.5px;color:var(--ink-2);margin-bottom:10px;}
.compare-card ul li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;background:var(--primary);}
.compare-card.warm ul li::before{background:var(--accent);}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;background:var(--paper);
  border:2px solid var(--line-soft);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-hard);
}
.stat-item{text-align:center;border-right:1px dashed var(--line-soft);}
.stat-item:last-child{border-right:none;}
.stat-num{font-size:30px;font-weight:700;color:var(--primary);line-height:1.1;}
.stat-label{font-size:13.5px;color:var(--ink-2);margin-top:6px;}

/* ---------- FAQ ---------- */
.faq-list{border-top:2px solid var(--line-soft);max-width:900px;}
.faq-item{border-bottom:1px dashed var(--line-soft);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:none;padding:20px 4px;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1.5px solid var(--primary);
  display:flex;align-items:center;justify-content:center;position:relative;
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;}
.faq-icon::before{width:11px;height:1.6px;}
.faq-icon::after{width:1.6px;height:11px;transition:transform .2s ease,opacity .2s ease;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 44px 22px 4px;font-size:15px;color:var(--ink-2);}
.faq-item.is-open .faq-a{max-height:420px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--primary-dark);border-radius:var(--r-lg);padding:48px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:24px;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.8);font-size:15px;max-width:640px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F1518;color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:var(--sp);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{width:28px;height:28px;flex:0 0 28px;border-radius:8px;background:var(--primary);display:inline-flex;align-items:center;justify-content:center;}
.footer-brand .brand-mark svg{width:17px;height:17px;fill:none;stroke:#fff;stroke-width:2;stroke-linejoin:round;stroke-linecap:round;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;font-size:14px;}
.footer-col ul li a{color:rgba(255,255,255,.68);}
.footer-col ul li a:hover{color:#fff;}
.footer-col ul li span{color:rgba(255,255,255,.68);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sp:56px;}
  .main-nav{
    position:fixed;top:68px;left:0;right:0;bottom:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:4px;padding:20px 24px 32px;
    transform:translateX(100%);transition:transform .26s ease;overflow-y:auto;margin-left:0;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{height:50px;padding:0 12px;font-size:16px;justify-content:flex-start;border-radius:var(--r-sm);}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{background:var(--primary-soft);}
  .nav-mobile-extra{display:flex;flex-direction:column;gap:14px;margin-top:20px;padding-top:20px;border-top:1px solid var(--line);}
  .nav-mobile-extra .search-box{width:100%;}
  .header-tools .search-box,.header-tools .btn{display:none;}
  .menu-toggle{display:inline-flex;}
  .page-head h1{font-size:30px;}
  .scene-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  :root{--sp:48px;}
  .container{padding:0 20px;}
  .page-head h1{font-size:26px;}
  .page-desc{font-size:15px;}
  .banner-figure img{height:180px;}
  .scene-grid{grid-template-columns:1fr;}
  .compare-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr;gap:14px;}
  .stat-item{border-right:none;border-bottom:1px dashed var(--line-soft);padding-bottom:14px;}
  .stat-item:last-child{border-bottom:none;padding-bottom:0;}
  .side-sticky{position:static;}
  .cta-band{padding:32px 22px;}
  .cta-band h2{font-size:20px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .dense-item{padding:18px 12px;gap:12px;}
  .dense-index{flex:0 0 38px;height:30px;font-size:13px;}
  .section-head h2,.dense-block > h2{font-size:21px;}
}
@media (max-width:520px){
  .page-head h1{font-size:24px;}
  .faq-q{font-size:15px;padding:16px 2px;}
  .faq-a-inner{padding:0 8px 18px 2px;}
  .split-figure img{height:220px;}
}