/* roulang page: index */
/* ---------- 设计变量 ---------- */
:root{
  --c-primary:#2B5D8C;
  --c-primary-dark:#1E4468;
  --c-primary-light:#E8F0F8;
  --c-accent:#E07B39;
  --c-accent-hover:#C9662A;
  --c-teal:#3E9E8F;
  --c-text:#17222E;
  --c-muted:#5A6B7B;
  --c-border:#E3E9F0;
  --c-input:#D8E1EA;
  --c-bg:#F5F8FB;
  --c-card:#FFFFFF;
  --c-footer:#1E4468;
  --c-footer-bottom:#0F1D2B;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:999px;
  --sh-1:0 1px 2px rgba(23,34,46,.04),0 8px 24px rgba(23,34,46,.06);
  --sh-2:0 12px 32px rgba(23,34,46,.10);
  --sh-3:0 20px 48px rgba(23,34,46,.14);
  --sect:88px;
}

/* ---------- 基础重置 ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0;}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;line-height:1.3;color:var(--c-text);font-weight:600;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}
strong,b{font-weight:700;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

/* ---------- 容器与栅格 ---------- */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.section{padding:var(--sect) 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin:0 auto 44px;text-align:center;}
.section-head h2{font-size:30px;font-weight:600;margin-bottom:14px;}
.section-head p{margin:0;color:var(--c-muted);font-size:16px;}
.section-head.left{margin-left:0;text-align:left;}

/* ---------- 顶部通栏 ---------- */
.topbar{background:var(--c-primary-dark);color:#DCE7F1;font-size:13px;line-height:36px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px;}
.topbar p{margin:0;}
.topbar-right{display:flex;align-items:center;gap:14px;}
.topbar a{color:#fff;text-decoration:none;}
.topbar a:hover{text-decoration:underline;text-underline-offset:3px;color:#fff;}
.topbar-close{
  width:24px;height:24px;line-height:1;border:0;border-radius:999px;
  background:rgba(255,255,255,.14);color:#fff;font-size:15px;display:flex;align-items:center;justify-content:center;
  transition:background .2s ease;
}
.topbar-close:hover{background:rgba(255,255,255,.28);}
.topbar.is-hidden{display:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:28px;height:64px;transition:height .25s ease;}
.site-header.is-scrolled .header-inner{height:56px;}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-main{font-size:17px;font-weight:700;color:var(--c-text);}
.brand-sub{font-size:12px;color:var(--c-muted);}

.main-nav{flex:1 1 auto;}
.main-nav ul{display:flex;align-items:center;gap:4px;margin:0;}
.main-nav a{
  display:block;padding:9px 14px;border-radius:10px;font-size:15px;color:var(--c-text);
  transition:background .2s ease,color .2s ease;
}
.main-nav a:hover{background:var(--c-primary-light);color:var(--c-primary-dark);text-decoration:none;}
.main-nav a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-light);}

.header-right{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.nav-search{display:flex;align-items:center;gap:0;position:relative;width:200px;}
.nav-search input{
  width:100%;height:40px;padding:0 38px 0 14px;border:1px solid var(--c-input);
  border-radius:var(--r-btn);background:#fff;font-size:14px;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:#93A3B2;}
.nav-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(43,93,140,.12);}
.nav-search button{
  position:absolute;right:4px;top:50%;transform:translateY(-50%);
  width:32px;height:32px;border:0;border-radius:8px;background:transparent;color:var(--c-muted);
  display:flex;align-items:center;justify-content:center;transition:background .2s ease,color .2s ease;
}
.nav-search button:hover{background:var(--c-primary-light);color:var(--c-primary);}
.nav-phone{font-size:14px;color:var(--c-muted);font-variant-numeric:tabular-nums;white-space:nowrap;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-border);border-radius:12px;
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;}

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:120;background:var(--c-primary-dark);
  display:none;flex-direction:column;padding:24px 20px 28px;
}
.mobile-drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-head .brand-main{color:#fff;}
.drawer-head .brand-sub{color:#B9CDE0;}
.drawer-head .brand-mark{background:var(--c-accent);}
.drawer-close{
  width:44px;height:44px;border:1px solid rgba(255,255,255,.35);border-radius:12px;background:transparent;
  color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center;
}
.drawer-search{display:flex;gap:10px;margin-bottom:22px;}
.drawer-search input{
  flex:1;height:46px;padding:0 14px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.08);color:#fff;font-size:15px;
}
.drawer-search input::placeholder{color:#A9C0D4;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  color:#fff;font-size:20px;font-weight:600;padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer-nav a:hover{text-decoration:none;color:#fff;opacity:.85;}
.drawer-cta{margin-top:auto;padding-top:24px;}
.drawer-cta .btn{width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:0;white-space:nowrap;text-decoration:none;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:rgba(43,93,140,.08);color:var(--c-primary-dark);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.link-more .arrow{transition:transform .22s ease;display:inline-block;}
.link-more:hover .arrow{transform:translateX(3px);}
.link-more:hover{text-decoration:none;}

/* ---------- 首屏 ---------- */
.hero{padding:64px 0 var(--sect);background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:end;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:var(--r-badge);
  background:var(--c-primary-light);color:var(--c-primary);font-size:13px;font-weight:600;margin-bottom:18px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:999px;background:var(--c-teal);}
.hero h1{font-size:42px;line-height:1.25;font-weight:700;margin-bottom:18px;}
.hero-sub{font-size:17px;color:var(--c-muted);margin-bottom:28px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-stats{display:flex;gap:40px;border-top:1px solid var(--c-border);padding-top:24px;}
.hero-stats li{display:flex;flex-direction:column;}
.hero-stats strong{font-size:30px;font-weight:700;color:var(--c-primary);line-height:1.1;font-variant-numeric:tabular-nums;}
.hero-stats span{font-size:13px;color:var(--c-muted);margin-top:6px;}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);background:var(--c-primary-light);}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(43,93,140,.06);pointer-events:none;}

/* ---------- 服务卡片 ---------- */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.service-grid > .cell{width:auto;padding:0;}
.card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;height:100%;
  transition:transform .25s ease-out,box-shadow .25s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-light);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.card:hover .card-media img{transform:scale(1.03);}
.card-badge{
  position:absolute;left:12px;top:12px;padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:600;color:#fff;background:var(--c-accent);
}
.card-badge.is-teal{background:var(--c-teal);}
.card-badge.is-blue{background:var(--c-primary);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.card-body p{font-size:14px;color:var(--c-muted);margin-bottom:16px;}
.card-value{
  display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-primary);
  margin-bottom:18px;font-variant-numeric:tabular-nums;
}
.card-value::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--c-teal);}
.card-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--c-border);}

/* ---------- 评价 ---------- */
.review-wrap{position:relative;}
.review-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.review-track::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 calc((100% - 48px) / 3);scroll-snap-align:start;
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px;display:flex;flex-direction:column;
}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.review-avatar{
  width:48px;height:48px;flex:0 0 48px;border-radius:999px;background:var(--c-primary-light);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
}
.review-name{font-size:15px;font-weight:600;}
.review-src{font-size:13px;color:var(--c-muted);}
.stars{color:var(--c-accent);font-size:14px;margin-bottom:10px;}
.review-text{font-size:15px;color:#334252;margin-bottom:16px;}
.review-time{font-size:13px;color:var(--c-muted);margin-top:auto;}
.review-controls{display:flex;align-items:center;justify-content:center;gap:14px;margin-top:28px;}
.circle-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--c-border);background:#fff;
  color:var(--c-primary);font-size:18px;display:flex;align-items:center;justify-content:center;
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.circle-btn:hover{background:var(--c-primary-light);border-color:var(--c-primary);box-shadow:var(--sh-1);}
.review-dots{display:flex;gap:8px;}
.review-dots button{
  width:8px;height:8px;border-radius:999px;border:0;background:#C9D6E2;padding:0;transition:width .2s ease,background .2s ease;
}
.review-dots button.is-active{width:22px;background:var(--c-primary);}

/* ---------- 保障条 ---------- */
.guarantee-band{background:rgba(43,93,140,.06);padding:44px 0;}
.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.guarantee-item{display:flex;gap:14px;align-items:flex-start;}
.guarantee-icon{
  width:46px;height:46px;flex:0 0 46px;border-radius:12px;background:#fff;color:var(--c-teal);
  display:flex;align-items:center;justify-content:center;border:1px solid var(--c-border);
}
.guarantee-icon svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.guarantee-item h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.guarantee-item p{font-size:13px;color:var(--c-muted);margin:0;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-left:0;margin-right:0;}
.news-grid > .cell{width:auto;padding-left:0;padding-right:0;}
.news-card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px;height:100%;display:flex;flex-direction:column;
  transition:transform .25s ease-out,box-shadow .25s ease-out;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-card .badge{
  display:inline-flex;align-self:flex-start;padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:600;background:var(--c-primary-light);color:var(--c-primary);margin-bottom:14px;
}
.news-card .badge.is-teal{background:rgba(62,158,143,.12);color:#2E7F72;}
.news-card h3{font-size:18px;font-weight:600;margin-bottom:10px;line-height:1.5;}
.news-card h3 a{color:var(--c-text);}
.news-card h3 a:hover{color:var(--c-primary);text-decoration:none;}
.news-card p{font-size:14px;color:var(--c-muted);margin-bottom:16px;}
.news-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-border);font-size:13px;color:var(--c-muted);}
.news-empty{
  min-height:220px;background:var(--c-card);border:1px dashed var(--c-border);border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:32px;
}
.news-empty p{margin:0;color:var(--c-muted);font-size:15px;}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--c-primary-dark);padding:56px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta-inner h2{color:#fff;font-size:28px;font-weight:600;margin-bottom:8px;}
.cta-inner p{color:#C8D6E3;margin:0;font-size:15px;}
.cta-actions{display:flex;gap:14px;flex:0 0 auto;}

/* ---------- FAQ ---------- */
.faq-list{max-width:960px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:17px;font-weight:600;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::-moz-list-bullet{list-style:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:400;color:var(--c-primary);transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:hover{background:#FAFCFE;}
.faq-body{padding:0 24px 22px;border-top:1px solid var(--c-border);color:#334252;font-size:15px;}
.faq-body p{margin:16px 0 0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);color:#C8D6E3;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 48px;}
.footer-col h3{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px;}
.footer-col p{font-size:14px;color:#C8D6E3;line-height:1.8;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#C8D6E3;font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.brand-footer .brand-main{color:#fff;}
.brand-footer .brand-sub{color:#9FB6CC;}
.brand-footer .brand-mark{background:var(--c-accent);}
.footer-brand p{margin-top:16px;}
.footer-subscribe{display:flex;gap:10px;margin-top:16px;}
.footer-subscribe input{
  flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.07);color:#fff;font-size:14px;
}
.footer-subscribe input::placeholder{color:#93A9BF;}
.footer-subscribe input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(224,123,57,.24);}
.footer-subscribe .btn{height:44px;}
.footer-bottom{background:var(--c-footer-bottom);border-top:1px solid rgba(255,255,255,.08);}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;font-size:13px;color:#93A9BF;}
.footer-bottom-inner p{margin:0;}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .container{padding-left:24px;padding-right:24px;}
  .hero h1{font-size:36px;}
}
@media (max-width:1024px){
  :root{--sect:64px;}
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .nav-search{display:none;}
  .header-inner{height:60px;gap:16px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;align-items:start;}
  .hero h1{font-size:32px;}
  .hero-media img{aspect-ratio:16/10;}
  .service-grid{grid-template-columns:repeat(2,1fr);}
  .guarantee-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .review-card{flex:0 0 calc((100% - 24px) / 2);}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .topbar{font-size:12px;}
  .topbar-inner{gap:10px;}
  .hero{padding:40px 0 var(--sect);}
  .hero h1{font-size:30px;}
  .hero-stats{gap:24px;}
  .hero-stats strong{font-size:24px;}
  .grid-3,.grid-4{grid-template-columns:1fr;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:640px){
  :root{--sect:52px;}
  .container{padding-left:16px;padding-right:16px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .section-head h2{font-size:24px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .hero-stats{flex-direction:column;gap:16px;}
  .service-grid,.guarantee-grid,.news-grid{grid-template-columns:1fr;}
  .review-card{flex:0 0 100%;}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 32px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:8px;}
  .footer-subscribe{flex-direction:column;}
  .footer-subscribe .btn{width:100%;}
  .faq-item summary{font-size:16px;padding:16px 18px;}
  .faq-body{padding:0 18px 18px;font-size:14px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#2B5D8C;
  --c-primary-dark:#1E4468;
  --c-primary-light:#E8F0F8;
  --c-accent:#E07B39;
  --c-accent-hover:#C9662A;
  --c-teal:#3E9E8F;
  --c-text:#17222E;
  --c-text-soft:#5A6B7B;
  --c-border:#E3E9F0;
  --c-border-input:#D8E1EA;
  --c-bg:#F5F8FB;
  --c-white:#FFFFFF;
  --c-footer:#0F1D2B;
  --c-warn:#D9A62E;
  --c-error:#C5524A;

  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(23,34,46,.04), 0 8px 24px rgba(23,34,46,.06);
  --sh-2:0 12px 32px rgba(23,34,46,.10);
  --sh-3:0 20px 48px rgba(23,34,46,.14);

  --sp-section:88px;
  --header-h:64px;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

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

/* ============ 顶部通栏 ============ */
.topbar{
  background:var(--c-primary-light);
  border-bottom:1px solid var(--c-border);
  font-size:13.5px;
  color:var(--c-primary-dark);
}
.topbar-inner{
  height:36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-inner p{margin:0;display:flex;align-items:center;gap:8px;}
.topbar-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--c-teal);
  display:inline-block;
  flex:0 0 auto;
}
.topbar a{color:var(--c-primary-dark);font-weight:600;}
.topbar a:hover{text-decoration:underline;text-underline-offset:3px;}
.topbar-close{
  border:0;background:transparent;color:var(--c-text-soft);
  font-size:16px;line-height:1;cursor:pointer;padding:6px 8px;border-radius:8px;
}
.topbar-close:hover{background:rgba(43,93,140,.10);color:var(--c-primary-dark);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-white);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease, height .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header-inner{
  height:var(--header-h);
  display:flex;
  align-items:center;
  gap:28px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:56px;}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--c-primary-dark);
  color:#fff;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-main{font-size:16.5px;font-weight:700;color:var(--c-text);}
.brand-sub{font-size:12px;color:var(--c-text-soft);}

.main-nav{margin-left:8px;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav a{
  display:inline-flex;align-items:center;
  height:38px;padding:0 14px;border-radius:10px;
  font-size:15px;color:var(--c-text);font-weight:500;
  transition:background .2s ease,color .2s ease;
}
.main-nav a:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.main-nav a.is-active{color:var(--c-primary-dark);font-weight:700;background:var(--c-primary-light);}

.header-right{
  margin-left:auto;
  display:flex;align-items:center;gap:14px;
}
.nav-search{
  display:flex;align-items:center;
  width:220px;height:40px;
  background:var(--c-bg);
  border:1px solid var(--c-border);
  border-radius:var(--r-input);
  padding:0 6px 0 12px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(43,93,140,.12);}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;height:100%;
  font-size:14px;color:var(--c-text);outline:none;
}
.nav-search button{
  width:30px;height:30px;border:0;border-radius:8px;
  background:transparent;color:var(--c-primary);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.nav-search button:hover{background:var(--c-primary-light);}
.nav-phone{
  font-size:14px;color:var(--c-text-soft);
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;border:1px solid var(--c-border);
  border-radius:10px;background:var(--c-white);
  cursor:pointer;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:80;
  background:var(--c-primary-dark);
  display:none;
  padding:22px 24px 28px;
  overflow-y:auto;
}
.nav-drawer.is-open{display:block;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-head .brand-main{color:#fff;}
.drawer-head .brand-sub{color:#A9C1D6;}
.drawer-head .brand-mark{background:rgba(255,255,255,.14);}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
  background:transparent;color:#fff;font-size:22px;line-height:1;cursor:pointer;
}
.drawer-close:hover{background:rgba(255,255,255,.12);}
.drawer-nav li + li{border-top:1px solid rgba(255,255,255,.12);}
.drawer-nav a{
  display:block;padding:18px 4px;font-size:19px;font-weight:600;color:#EAF2F9;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:#fff;}
.drawer-foot{margin-top:28px;display:flex;flex-direction:column;gap:12px;}
.drawer-foot .btn{width:100%;justify-content:center;}
.drawer-foot p{color:#A9C1D6;font-size:13.5px;margin:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;cursor:pointer;
  border:1px solid transparent;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  text-align:center;
}
.btn-sm{height:40px;padding:0 16px;font-size:14.5px;}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:rgba(43,93,140,.08);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;cursor:not-allowed;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--c-primary);
}
.link-arrow svg{transition:transform .2s ease;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ============ 面包屑 ============ */
.breadcrumb-bar{padding:18px 0 0;}
.breadcrumb{
  font-size:13px;color:var(--c-text-soft);
  display:flex;align-items:center;flex-wrap:wrap;gap:6px;
}
.breadcrumb a{color:var(--c-text-soft);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{color:#B9C6D3;}
.breadcrumb .current{color:var(--c-primary);font-weight:600;}

/* ============ 分类 Hero ============ */
.cat-hero{padding:26px 0 0;}
.cat-hero-grid{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:56px;align-items:end;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-primary-light);color:var(--c-primary-dark);
  font-size:13px;font-weight:600;margin-bottom:18px;
}
.eyebrow i{
  width:7px;height:7px;border-radius:50%;background:var(--c-teal);display:inline-block;
}
.cat-hero h1{
  font-size:42px;line-height:1.25;font-weight:700;letter-spacing:0;
}
.cat-hero .lead{
  margin-top:16px;font-size:17px;color:var(--c-text-soft);max-width:600px;
}
.filter-bar{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;
}
.filter-chip{
  height:40px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-border);background:var(--c-white);
  color:var(--c-text);font-size:14.5px;font-weight:500;cursor:pointer;
  transition:all .2s ease;
}
.filter-chip:hover{border-color:var(--c-primary);color:var(--c-primary-dark);}
.filter-chip.is-active{
  background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;
}
.cat-hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);border:1px solid var(--c-border);
  aspect-ratio:16/10;background:var(--c-primary-light);
}
.cat-hero-media img{width:100%;height:100%;object-fit:cover;}
.cat-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(43,93,140,.06), rgba(30,68,104,.22));
}
.hero-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.94);border-radius:var(--r-pill);
  padding:8px 16px;font-size:13.5px;font-weight:600;color:var(--c-primary-dark);
}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0;}
.section-tight{padding-top:64px;}
.section-head{margin-bottom:38px;max-width:720px;}
.section-head h2{
  font-size:30px;line-height:1.3;font-weight:600;
}
.section-head p{margin-top:12px;color:var(--c-text-soft);font-size:16px;}
.section-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;margin-bottom:38px;
}
.section-head-row h2{font-size:30px;font-weight:600;line-height:1.3;}
.section-head-row p{margin-top:10px;color:var(--c-text-soft);}

/* ============ 服务项目网格 ============ */
.project-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;
}
.project-card{
  background:var(--c-white);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .28s ease, box-shadow .28s ease;
}
.project-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.project-card.is-hidden{display:none;}
.pc-media{
  position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-light);
}
.pc-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.project-card:hover .pc-media img{transform:scale(1.03);}
.pc-tag{
  position:absolute;left:12px;top:12px;
  background:var(--c-accent);color:#fff;
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-pill);
}
.pc-tag.teal{background:var(--c-teal);}
.pc-tag.blue{background:var(--c-primary);}
.pc-body{padding:20px;display:flex;flex-direction:column;flex:1;gap:12px;}
.pc-body h3{font-size:20px;font-weight:600;line-height:1.4;}
.pc-desc{font-size:15px;color:var(--c-text-soft);}
.pc-meta{
  display:flex;flex-wrap:wrap;gap:8px;
}
.pc-meta span{
  font-size:13px;color:var(--c-primary-dark);
  background:var(--c-primary-light);
  padding:4px 10px;border-radius:var(--r-pill);
}
.pc-value{
  margin-top:auto;display:flex;align-items:baseline;gap:8px;
  padding-top:12px;border-top:1px dashed var(--c-border);
}
.pc-value strong{
  font-size:19px;color:var(--c-accent);font-weight:700;
  font-variant-numeric:tabular-nums;
}
.pc-value em{font-style:normal;font-size:13.5px;color:var(--c-text-soft);}
.pc-foot{padding-top:2px;}

/* ============ 对比表 ============ */
.compare-wrap{
  background:var(--c-white);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;}
table.compare{
  width:100%;border-collapse:collapse;min-width:820px;
}
table.compare caption{
  text-align:left;padding:22px 24px 0;font-size:14px;color:var(--c-text-soft);
}
table.compare th,table.compare td{
  padding:18px 22px;text-align:left;font-size:15px;
  border-bottom:1px solid var(--c-border);vertical-align:top;
}
table.compare thead th{
  background:var(--c-primary-light);
  color:var(--c-primary-dark);font-weight:600;font-size:14.5px;
  white-space:nowrap;
}
table.compare tbody tr:hover{background:#FAFCFE;}
table.compare td:first-child{font-weight:600;color:var(--c-text);}
table.compare tbody tr:last-child td{border-bottom:0;}
.tag-mini{
  display:inline-block;font-size:12px;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--c-primary-light);color:var(--c-primary-dark);font-weight:600;
}
.tag-mini.teal{background:rgba(62,158,143,.14);color:#2E7C6F;}
.tag-mini.amber{background:rgba(224,123,57,.14);color:#B85F22;}

.cards-mobile{display:none;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--c-white);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 24px;text-align:left;
  font-size:18px;font-weight:600;color:var(--c-text);
  font-family:inherit;
}
.faq-q:hover{color:var(--c-primary-dark);}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:8px;
  background:var(--c-primary-light);color:var(--c-primary-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;line-height:1;
  transition:background .2s ease,color .2s ease;
}
.faq-item.is-open .faq-icon{background:var(--c-primary);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s ease;
}
.faq-a-inner{
  padding:0 24px 22px;color:var(--c-text-soft);font-size:15.5px;
  border-top:1px solid var(--c-border);padding-top:18px;margin:0 0 0;
}
.faq-a-inner{margin-top:0;}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--c-primary-dark);
  border-radius:var(--r-card);
  padding:46px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--sh-1);
}
.cta-band h2{color:#fff;font-size:28px;font-weight:600;line-height:1.35;}
.cta-band p{color:#C8D6E3;margin-top:10px;font-size:15.5px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ============ 页尾次级入口 ============ */
.back-home{
  display:flex;justify-content:center;padding:36px 0 0;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-footer);
  color:#C8D6E3;
  margin-top:88px;
  padding-top:64px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px;
  padding-bottom:52px;
}
.footer-col h3{
  color:#fff;font-size:16px;font-weight:600;margin-bottom:18px;
}
.footer-col p{font-size:14.5px;line-height:1.8;color:#A9C1D6;}
.brand-footer{margin-bottom:16px;}
.brand-footer .brand-main{color:#fff;}
.brand-footer .brand-sub{color:#A9C1D6;}
.brand-footer .brand-mark{background:rgba(255,255,255,.14);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{
  color:#C8D6E3;font-size:14.5px;
}
.footer-col ul a:hover{
  color:#fff;text-decoration:underline;text-underline-offset:3px;
}
.footer-subscribe{margin-top:16px;display:flex;gap:10px;}
.footer-subscribe input{
  flex:1;min-width:0;height:44px;border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;
  padding:0 14px;font-size:14.5px;outline:none;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.footer-subscribe input::placeholder{color:#8FA6BB;}
.footer-subscribe input:focus{
  border-color:#5D90BF;box-shadow:0 0 0 3px rgba(93,144,191,.22);
}
.footer-subscribe .btn{height:44px;padding:0 18px;font-size:14.5px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);}
.footer-bottom-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;padding:20px 0;font-size:13.5px;color:#8FA6BB;
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .main-nav a{padding:0 10px;font-size:14.5px;}
  .nav-search{width:180px;}
  .project-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:1024px){
  :root{--sp-section:64px;}
  .container{padding:0 24px;}
  .main-nav,.nav-search,.nav-phone{display:none;}
  .nav-toggle{display:flex;}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;align-items:start;}
  .cat-hero h1{font-size:34px;}
  .project-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 32px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
}
@media (max-width:767px){
  .section-head-row{margin-bottom:28px;}
  .section-head h2,.section-head-row h2{font-size:25px;}
  .table-scroll{display:none;}
  .cards-mobile{display:grid;gap:16px;}
  .compare-card{
    background:var(--c-white);
    border:1px solid var(--c-border);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    padding:20px;
  }
  .compare-card h3{font-size:18px;font-weight:600;margin-bottom:14px;}
  .compare-card dl{display:grid;grid-template-columns:88px 1fr;gap:10px 14px;font-size:14.5px;}
  .compare-card dt{color:var(--c-text-soft);}
  .compare-card dd{margin:0;color:var(--c-text);}
}
@media (max-width:520px){
  :root{--sp-section:52px;}
  .container{padding:0 16px;}
  .cat-hero h1{font-size:28px;}
  .cat-hero .lead{font-size:15.5px;}
  .project-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-subscribe{flex-direction:column;}
  .footer-subscribe .btn{width:100%;}
  .cta-band{padding:30px 22px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .faq-q{font-size:16.5px;padding:18px;}
  .faq-a-inner{padding:0 18px 18px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --c-primary:#2B5D8C;
  --c-primary-dark:#1E4468;
  --c-primary-light:#E8F0F8;
  --c-accent:#E07B39;
  --c-accent-hover:#C9662A;
  --c-teal:#3E9E8F;
  --c-text:#17222E;
  --c-muted:#5A6B7B;
  --c-border:#E3E9F0;
  --c-bg:#F5F8FB;
  --c-card:#FFFFFF;
  --c-footer:#0F1D2B;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,34,46,.04),0 8px 24px rgba(23,34,46,.06);
  --sh-2:0 12px 32px rgba(23,34,46,.10);
  --sh-3:0 20px 48px rgba(23,34,46,.14);
  --sp-section:88px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:height .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:64px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:56px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:var(--c-primary);
  color:#fff;font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-main{font-size:17px;font-weight:700;color:var(--c-text);}
.brand-sub{font-size:12px;color:var(--c-muted);}
.main-nav{flex:1 1 auto;}
.main-nav ul{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.main-nav a{
  display:inline-block;
  padding:9px 14px;
  border-radius:var(--r-btn);
  font-size:15px;
  color:#2C3A48;
  transition:background .22s ease,color .22s ease;
}
.main-nav a:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.main-nav a.is-active{color:var(--c-primary-dark);font-weight:600;background:var(--c-primary-light);}
.header-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;
  background:#F2F6FA;
  border:1px solid var(--c-border);
  border-radius:var(--r-pill);
  height:40px;
  padding:0 6px 0 14px;
  max-width:220px;
}
.nav-search input{
  border:0;background:transparent;outline:none;
  width:150px;font-size:14px;height:38px;
}
.nav-search input::placeholder{color:#93A4B4;}
.nav-search button{
  width:30px;height:30px;border:0;border-radius:50%;
  background:transparent;color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .2s ease;
}
.nav-search button:hover{background:var(--c-primary-light);}
.nav-phone{font-size:14px;color:var(--c-primary-dark);font-weight:600;white-space:nowrap;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-border);
  background:#fff;border-radius:var(--r-btn);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-text);border-radius:2px;transition:transform .22s ease,opacity .22s ease;}
.nav-drawer-cta{display:none;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 18px rgba(224,123,57,.22);}
.btn-primary:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:rgba(43,93,140,.08);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--c-primary);padding:0 6px;}
.btn-ghost .arrow{display:inline-block;margin-left:6px;transition:transform .22s ease;}
.btn-ghost:hover .arrow{transform:translateX(3px);}
.btn-sm{height:40px;padding:0 16px;font-size:14.5px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;cursor:not-allowed;}

/* ---------- reading progress ---------- */
.read-progress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:var(--c-accent);z-index:80;transition:width .1s linear;
}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--c-border);}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);
  padding:14px 0;flex-wrap:nowrap;overflow:hidden;
}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:#B7C4D1;}
.crumb .now{color:var(--c-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46%;}

/* ---------- article head ---------- */
.article-shell{padding:44px 0 var(--sp-section);}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;}
.article-head{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:32px 34px;margin-bottom:28px;
}
.article-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-light);color:var(--c-primary-dark);
  margin-bottom:14px;
}
.article-head h1{
  font-size:38px;line-height:1.28;font-weight:700;letter-spacing:0;
  margin-bottom:16px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13.5px;color:var(--c-muted);}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:#C6D2DE;}

/* ---------- article body ---------- */
.article-body{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:38px 40px 44px;
  max-width:820px;
}
.article-body>*+*{margin-top:1.2em;}
.article-body p{font-size:17px;line-height:1.95;color:#233040;}
.article-body h2{
  font-size:27px;line-height:1.4;font-weight:600;color:var(--c-text);
  margin-top:1.7em;padding-left:14px;border-left:4px solid var(--c-primary);
}
.article-body h3{font-size:20px;font-weight:600;margin-top:1.5em;color:var(--c-primary-dark);}
.article-body strong{font-weight:600;color:var(--c-primary-dark);}
.article-body em{font-style:normal;background:linear-gradient(transparent 62%,rgba(224,123,57,.22) 62%);}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--c-primary-dark);text-decoration-thickness:2px;}
.article-body ul,.article-body ol{padding-left:0;}
.article-body ul li,.article-body ol li{
  position:relative;font-size:16.5px;line-height:1.9;color:#233040;
  padding-left:24px;margin-top:.6em;
}
.article-body ul li::before{
  content:"";position:absolute;left:6px;top:.75em;
  width:7px;height:7px;border-radius:50%;background:var(--c-teal);
}
.article-body ol{counter-reset:li;}
.article-body ol li::before{
  counter-increment:li;content:counter(li);
  position:absolute;left:0;top:.35em;
  width:20px;height:20px;border-radius:50%;
  background:var(--c-primary-light);color:var(--c-primary-dark);
  font-size:12px;line-height:20px;text-align:center;font-weight:600;
}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;
  background:var(--c-primary-light);
  border-left:4px solid var(--c-primary);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:#26374A;font-size:16.5px;line-height:1.9;
}
.article-body blockquote p{font-size:16.5px;color:#26374A;}
.article-body figure{margin:1.6em 0;}
.article-body img{border-radius:var(--r-img);width:100%;height:auto;}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;
  display:block;overflow-x:auto;white-space:nowrap;
  border:1px solid var(--c-border);border-radius:var(--r-img);
}
.article-body th,.article-body td{
  padding:12px 16px;border-bottom:1px solid var(--c-border);
  text-align:left;white-space:normal;min-width:120px;
}
.article-body th{background:#F2F6FA;font-weight:600;color:var(--c-primary-dark);}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:2em 0;}
.article-body code{background:var(--c-primary-light);border-radius:6px;padding:2px 6px;font-size:15px;}
.article-empty{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:56px 32px;text-align:center;
}
.article-empty h2{font-size:22px;font-weight:600;margin-bottom:10px;}
.article-empty p{color:var(--c-muted);margin-bottom:22px;}

/* ---------- tags ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;align-items:center;}
.tag-row .label{font-size:13px;color:var(--c-muted);}
.tag{
  display:inline-block;font-size:12.5px;padding:5px 13px;border-radius:var(--r-pill);
  background:#F2F6FA;color:var(--c-primary-dark);border:1px solid var(--c-border);
  transition:background .2s ease,color .2s ease;
}
.tag:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.tag.is-teal{background:rgba(62,158,143,.10);color:#2C7A6E;border-color:rgba(62,158,143,.25);}

/* ---------- post nav / related ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;}
.post-card{
  display:block;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D6E1EC;}
.post-card .k{font-size:12.5px;color:var(--c-muted);display:block;margin-bottom:6px;}
.post-card .t{font-size:16.5px;font-weight:600;color:var(--c-text);line-height:1.5;}

.section-block{margin-top:44px;}
.section-title{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:22px;}
.section-title h2{font-size:24px;font-weight:600;}
.section-title .more{font-size:14px;color:var(--c-primary);}
.section-title .more:hover{text-decoration:underline;text-underline-offset:3px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.rel-thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--c-primary-light);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:18px 20px 22px;}
.rel-body .badge{
  display:inline-block;font-size:12px;padding:4px 10px;border-radius:var(--r-pill);
  background:var(--c-primary-light);color:var(--c-primary-dark);margin-bottom:10px;
}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px;}
.rel-body p{font-size:14px;color:var(--c-muted);line-height:1.7;}

.back-row{margin-top:36px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px 22px 24px;
}
.side-card h2{font-size:17px;font-weight:600;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--c-border);}
.side-list li+li{margin-top:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:var(--r-btn);font-size:14.5px;color:#2C3A48;
  transition:background .2s ease,color .2s ease;
}
.side-list a:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.side-list a::after{content:"›";color:#A9B8C7;}
.side-cta{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#DDE8F2;}
.side-cta h2{color:#fff;border-bottom-color:rgba(255,255,255,.18);}
.side-cta p{font-size:14px;line-height:1.8;color:#C8D6E3;margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-footer);color:#C8D6E3;margin-top:var(--sp-section);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
  padding:64px 32px 46px;
}
.footer-brand .brand-main{color:#fff;}
.footer-brand .brand-sub{color:#93A9BF;}
.footer-brand p{font-size:14px;line-height:1.85;color:#A9BCCF;margin-top:16px;max-width:320px;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul li+li{margin-top:10px;}
.footer-col a{font-size:14.5px;color:#C8D6E3;transition:color .2s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-col p{font-size:14.5px;color:#A9BCCF;margin-bottom:10px;}
.footer-subscribe{display:flex;gap:10px;margin-top:14px;}
.footer-subscribe input{
  flex:1;height:44px;border-radius:var(--r-btn);border:1px solid #2C4257;
  background:#152536;color:#E7EFF7;padding:0 14px;outline:none;
}
.footer-subscribe input::placeholder{color:#7C93A8;}
.footer-subscribe input:focus{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(224,123,57,.18);}
.footer-bottom{border-top:1px solid #1B2C3D;}
.footer-bottom-inner{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 32px;font-size:13px;color:#8FA5B9;
}

/* ---------- mobile drawer ---------- */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-search{display:none;}
  .nav-phone{display:none;}
  .nav-toggle{display:flex;}
  .header-right{gap:10px;}
  .main-nav{
    position:fixed;inset:0;z-index:90;
    background:var(--c-primary-dark);
    padding:76px 28px 32px;
    display:flex;flex-direction:column;
    transform:translateX(100%);
    transition:transform .28s ease;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px;}
  .main-nav a{
    color:#E6EFF8;font-size:20px;font-weight:600;padding:14px 6px;
    border-bottom:1px solid rgba(255,255,255,.10);border-radius:0;
  }
  .main-nav a:hover,.main-nav a.is-active{background:transparent;color:#fff;}
  .nav-drawer-cta{display:block;margin-top:34px;}
  .nav-drawer-cta p{color:#A9C0D6;font-size:14px;margin-bottom:14px;}
  .nav-drawer-cta .btn{width:100%;margin-bottom:12px;}
  .nav-toggle{position:relative;z-index:95;}
  .brand{position:relative;z-index:95;}
  .brand-mark{width:38px;height:38px;font-size:14px;}
  .brand-main{font-size:16px;}
  .article-body{padding:28px 22px 32px;max-width:100%;}
  .article-head{padding:26px 22px;}
  .article-head h1{font-size:29px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18.5px;}
  .article-body p,.article-body ul li,.article-body ol li{font-size:16.5px;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 24px 36px;}
  .footer-bottom-inner{padding:18px 24px;}
  :root{--sp-section:64px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .article-head h1{font-size:26px;}
  .article-shell{padding:26px 0 48px;}
  .related-grid{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 16px 30px;}
  .footer-bottom-inner{padding:16px;font-size:12.5px;}
  .brand-sub{display:none;}
  .crumb .now{max-width:40%;}
  :root{--sp-section:48px;}
}
@media (min-width:1024px){
  .article-grid{grid-template-columns:minmax(0,1fr) 316px;}
  .article-body{max-width:800px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#2B5D8C;
  --c-primary-dark:#1E4468;
  --c-primary-deep:#0F1D2B;
  --c-primary-light:#E8F0F8;
  --c-accent:#E07B39;
  --c-accent-hover:#C9662A;
  --c-teal:#3E9E8F;
  --c-text:#17222E;
  --c-muted:#5A6B7B;
  --c-border:#E3E9F0;
  --c-input:#D8E1EA;
  --c-bg:#F5F8FB;
  --c-white:#FFFFFF;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(23,34,46,.04),0 8px 24px rgba(23,34,46,.06);
  --sh-2:0 12px 32px rgba(23,34,46,.10);
  --sh-3:0 20px 48px rgba(23,34,46,.14);
  --container:1200px;
  --sec-space:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-dark);}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

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

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:rgba(43,93,140,.08);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;}

.tag{
  display:inline-block;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
  background:var(--c-primary-light);color:var(--c-primary-dark);
}
.tag-teal{background:rgba(62,158,143,.12);color:#2C7A6E;}
.tag-accent{background:rgba(224,123,57,.14);color:#B85C1F;}

.section{padding:var(--sec-space) 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{display:inline-block;margin-bottom:14px;}
.section-head h2{font-size:30px;line-height:1.35;font-weight:600;letter-spacing:0;}
.section-head p{margin-top:14px;color:var(--c-muted);font-size:16px;}
.section-alt{background:var(--c-white);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-white);
  border-bottom:1px solid var(--c-border);
  height:64px;
  transition:height .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{height:56px;box-shadow:var(--sh-1);}
.header-inner{
  height:100%;
  display:flex;align-items:center;gap:28px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;flex:0 0 auto;
  border-radius:12px;
  background:var(--c-primary);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-main{font-size:16px;font-weight:700;color:var(--c-text);}
.brand-sub{font-size:12px;color:var(--c-muted);}
.main-nav{margin-left:8px;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  display:inline-flex;align-items:center;
  height:38px;padding:0 14px;
  border-radius:10px;
  font-size:15px;font-weight:500;color:var(--c-muted);
  transition:background-color .2s ease,color .2s ease;
}
.main-nav a:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.main-nav a.is-active{background:var(--c-primary-light);color:var(--c-primary-dark);font-weight:600;}

.header-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-search{
  display:flex;align-items:center;
  width:220px;height:40px;
  border:1px solid var(--c-input);
  border-radius:var(--r-btn);
  background:#fff;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(43,93,140,.12);}
.nav-search input{
  flex:1;height:100%;border:0;background:transparent;
  padding:0 12px;font-size:14px;outline:none;
}
.nav-search button{
  width:42px;height:100%;
  border:0;background:transparent;color:var(--c-muted);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:color .2s ease;
}
.nav-search button:hover{color:var(--c-primary);}
.nav-phone{font-size:14px;color:var(--c-muted);font-variant-numeric:tabular-nums;white-space:nowrap;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-border);border-radius:10px;background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-primary-dark);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--c-border);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:14px 0;
  font-size:13px;color:var(--c-muted);
}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#B7C4D2;}
.crumb .current{color:var(--c-primary);font-weight:600;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,#F5F8FB 100%);
  border-bottom:1px solid var(--c-border);
  padding:52px 0 56px;
}
.cat-hero-grid{display:flex;align-items:center;gap:56px;}
.cat-hero-main{flex:1 1 58%;min-width:0;}
.cat-hero-main h1{
  font-size:44px;line-height:1.25;font-weight:700;letter-spacing:0;
  margin:16px 0 0;
}
.cat-hero-main .lead{margin-top:16px;font-size:17.5px;color:var(--c-muted);max-width:640px;}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cat-hero-extra{margin-top:20px;font-size:14px;color:var(--c-muted);}
.cat-hero-extra a{font-weight:600;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.cat-hero-extra a:hover{text-decoration-thickness:2px;}
.cat-hero-visual{
  flex:0 1 38%;
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  border:1px solid var(--c-border);
  position:relative;
  background:var(--c-primary-light);
}
.cat-hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.cat-hero-visual::after{
  content:"";position:absolute;inset:0;background:rgba(43,93,140,.07);pointer-events:none;
}
.quick-facts{
  display:flex;flex-wrap:wrap;gap:10px 26px;
  margin-top:30px;padding-top:22px;border-top:1px solid var(--c-border);
}
.quick-facts li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);}
.quick-facts li b{color:var(--c-text);font-weight:600;font-variant-numeric:tabular-nums;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-teal);flex:0 0 auto;}

/* ---------- 图文交替 ---------- */
.flow-row{
  display:flex;align-items:center;gap:56px;
  padding:34px 0;
}
.flow-row + .flow-row{border-top:1px solid var(--c-border);}
.flow-row.reverse{flex-direction:row-reverse;}
.flow-media{flex:0 0 48%;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--c-border);}
.flow-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease-out;}
.flow-row:hover .flow-media img{transform:scale(1.03);}
.flow-body{flex:1 1 52%;min-width:0;}
.flow-body h2{font-size:26px;line-height:1.4;font-weight:600;margin:14px 0 0;}
.flow-body p{margin-top:14px;color:var(--c-muted);}
.flow-list{margin-top:20px;display:grid;gap:12px;}
.flow-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;
  background:#fff;border:1px solid var(--c-border);border-radius:12px;
  font-size:15px;color:var(--c-text);
}
.flow-list li .num{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:var(--c-primary-light);color:var(--c-primary-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.flow-body .more{display:inline-flex;align-items:center;gap:6px;margin-top:22px;font-weight:600;font-size:15px;}
.flow-body .more span{transition:transform .2s ease;}
.flow-body .more:hover span{transform:translateX(3px);}

/* ---------- 步骤条 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:24px;position:relative;margin-top:8px;
}
.steps::before{
  content:"";position:absolute;left:6%;right:6%;top:19px;height:2px;background:var(--c-border);
}
.step{position:relative;padding-top:0;}
.step-node{
  width:40px;height:40px;border-radius:50%;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px #fff;position:relative;z-index:1;
}
.step h3{font-size:18px;font-weight:600;margin-top:18px;}
.step p{margin-top:8px;color:var(--c-muted);font-size:15px;}
.step .step-time{margin-top:12px;display:inline-block;font-size:13px;color:#B85C1F;background:rgba(224,123,57,.12);border-radius:999px;padding:3px 10px;font-weight:600;}

/* ---------- 数据条 ---------- */
.stats-band{
  background:var(--c-primary-light);
  border-top:1px solid var(--c-border);
  border-bottom:1px solid var(--c-border);
  padding:56px 0;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.stat .num{
  font-size:38px;font-weight:700;color:var(--c-primary-dark);
  line-height:1.1;font-variant-numeric:tabular-nums;
}
.stat .num em{font-size:16px;font-style:normal;font-weight:600;margin-left:6px;color:var(--c-primary);}
.stat .label{margin-top:10px;font-weight:600;font-size:15.5px;}
.stat .desc{margin-top:6px;font-size:14px;color:var(--c-muted);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.faq-item{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item + .faq-item{margin-top:14px;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;border:0;background:#fff;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--c-text);
  transition:background-color .2s ease;
}
.faq-q:hover{background:#FAFCFE;}
.faq-q .faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--c-border);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;transition:transform .22s ease,background-color .22s ease,color .22s ease;
}
.faq-item.is-open .faq-icon{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s ease;
}
.faq-a-inner{padding:0 24px 22px;color:var(--c-muted);font-size:15.5px;border-top:1px solid var(--c-border);padding-top:16px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--c-primary-dark);
  border-radius:0;
  padding:52px 0;
}
.cta-inner{display:flex;align-items:center;gap:40px;flex-wrap:wrap;}
.cta-copy{flex:1 1 520px;min-width:0;}
.cta-copy h2{color:#fff;font-size:27px;font-weight:600;line-height:1.4;}
.cta-copy p{margin-top:10px;color:#C8D6E3;font-size:16px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-deep);color:#C8D6E3;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-col h3{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px;}
.footer-col p{font-size:14.5px;line-height:1.8;color:#93A9BF;}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{color:#C8D6E3;font-size:14.5px;}
.footer-col ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.brand-footer .brand-main{color:#fff;}
.brand-footer .brand-sub{color:#93A9BF;}
.brand-footer .brand-mark{background:var(--c-accent);}
.footer-brand{margin-bottom:16px;}
.footer-subscribe{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap;}
.footer-subscribe input{
  flex:1 1 150px;min-height:46px;padding:0 14px;
  border-radius:var(--r-btn);border:1px solid rgba(200,214,227,.28);
  background:rgba(255,255,255,.06);color:#fff;outline:none;font-size:14.5px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-subscribe input::placeholder{color:#7E93A8;}
.footer-subscribe input:focus{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(224,123,57,.18);}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(200,214,227,.16);padding:20px 0;
}
.footer-bottom-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:#8FA4B9;}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .container{padding:0 24px;}
}
@media (max-width:1024px){
  :root{--sec-space:64px;}
  .header-inner{gap:16px;}
  .main-nav{margin-left:0;}
  .main-nav a{padding:0 10px;font-size:14.5px;}
  .nav-search{width:170px;}
  .nav-phone{display:none;}
  .cat-hero-grid{flex-direction:column-reverse;align-items:stretch;gap:32px;}
  .cat-hero-main h1{font-size:34px;}
  .cat-hero-visual{flex:0 0 auto;}
  .flow-row{flex-direction:column;gap:28px;align-items:stretch;padding:30px 0;}
  .flow-row.reverse{flex-direction:column;}
  .flow-media{flex:0 0 auto;}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px;}
  .steps::before{display:none;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  :root{--sec-space:52px;}
  .container{padding:0 16px;}
  body{font-size:16px;}
  .site-header{height:60px;}
  .site-header.is-scrolled{height:56px;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;inset:0;
    background:var(--c-primary-dark);
    padding:88px 24px 32px;
    display:none;z-index:70;
    overflow-y:auto;
  }
  .site-header.nav-open .main-nav{display:block;}
  .main-nav ul{flex-direction:column;align-items:flex-start;gap:6px;}
  .main-nav a{color:#E3EDF6;font-size:20px;font-weight:600;height:52px;padding:0 12px;width:100%;}
  .main-nav a:hover,.main-nav a.is-active{background:rgba(255,255,255,.10);color:#fff;}
  .site-header.nav-open .nav-toggle{position:relative;z-index:80;}
  .site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .site-header.nav-open .nav-toggle span:nth-child(2){opacity:0;}
  .site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
  .header-right .btn-primary{display:none;}
  .cat-hero{padding:36px 0 40px;}
  .cat-hero-main h1{font-size:29px;margin-top:12px;}
  .cat-hero-main .lead{font-size:16px;}
  .cat-hero-actions .btn{flex:1 1 100%;}
  .quick-facts{flex-direction:column;gap:10px;}
  .flow-body h2{font-size:22px;}
  .steps{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr;}
  .stat .num{font-size:32px;}
  .cta-inner{gap:24px;}
  .cta-copy h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom-inner{flex-direction:column;gap:8px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a-inner{padding:14px 18px 20px;}
  .section-head h2{font-size:24px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#2B5D8C;
  --c-primary-dark:#1E4468;
  --c-primary-light:#E8F0F8;
  --c-accent:#E07B39;
  --c-accent-hover:#C9662A;
  --c-teal:#3E9E8F;
  --c-text:#17222E;
  --c-text-mute:#5A6B7B;
  --c-border:#E3E9F0;
  --c-page:#F5F8FB;
  --c-card:#FFFFFF;
  --c-foot:#0F1D2B;
  --c-foot-text:#C8D6E3;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:999px;
  --sh-1:0 1px 2px rgba(23,34,46,.04),0 8px 24px rgba(23,34,46,.06);
  --sh-2:0 12px 32px rgba(23,34,46,.10);
  --sh-3:0 20px 48px rgba(23,34,46,.14);
  --sp-section:88px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-page);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:600;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:64px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:56px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--c-primary);
  color:#fff;
  font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-main{font-size:17px;font-weight:700;color:var(--c-text);}
.brand-sub{font-size:12px;color:var(--c-text-mute);}
.main-nav{margin-left:8px;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  display:block;
  padding:9px 14px;
  border-radius:var(--r-btn);
  font-size:15px;
  color:var(--c-text);
  transition:background .2s ease,color .2s ease;
}
.main-nav a:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.main-nav a.is-active{background:var(--c-primary-light);color:var(--c-primary-dark);font-weight:600;}
.header-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-search{
  display:flex;align-items:center;
  width:220px;height:40px;
  border:1px solid var(--c-border);
  border-radius:var(--r-input);
  background:#fff;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(43,93,140,.12);}
.nav-search input{
  flex:1 1 auto;min-width:0;
  height:100%;border:0;background:transparent;
  padding:0 12px;font-size:14px;color:var(--c-text);
}
.nav-search input::placeholder{color:#9AAABA;}
.nav-search input:focus{outline:none;}
.nav-search button{
  width:42px;height:100%;border:0;background:transparent;
  color:var(--c-primary);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.nav-search button:hover{background:var(--c-primary-light);}
.nav-phone{
  font-size:14px;color:var(--c-text-mute);
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-border);
  border-radius:var(--r-btn);
  background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:rgba(43,93,140,.08);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  border-bottom:1px solid transparent;
}
.link-more:hover{border-bottom-color:var(--c-primary);}
.link-more .arrow{transition:transform .22s ease;}
.link-more:hover .arrow{transform:translateX(3px);}

.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;line-height:1.6;
}
.badge-primary{background:var(--c-primary-light);color:var(--c-primary-dark);}
.badge-teal{background:rgba(62,158,143,.12);color:#2C7A6E;}
.badge-accent{background:rgba(224,123,57,.12);color:#B45E22;}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;}
.crumb ol{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-mute);flex-wrap:wrap;}
.crumb li::after{content:"/";margin-left:8px;color:#B9C6D3;}
.crumb li:last-child::after{content:"";margin:0;}
.crumb a{color:var(--c-text-mute);}
.crumb a:hover{color:var(--c-primary);}
.crumb .current{color:var(--c-primary);font-weight:600;}

/* ---------- page hero ---------- */
.page-hero{padding:26px 0 var(--sp-section);}
.hero-shell{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:56px;
  align-items:end;
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:40px;
}
.hero-copy .eyebrow{margin-bottom:14px;}
.hero-copy h1{
  font-size:42px;line-height:1.25;font-weight:700;
  margin-bottom:16px;
}
.hero-copy .lead{
  font-size:17px;color:var(--c-text-mute);
  max-width:640px;margin-bottom:24px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-visual{position:relative;border-radius:var(--r-img);overflow:hidden;background:var(--c-primary-light);}
.hero-visual img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:rgba(43,93,140,.08);
}
.hero-note{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:12px 26px;
  font-size:13px;color:var(--c-text-mute);
}
.hero-note span{display:inline-flex;align-items:center;gap:7px;}
.dot{width:7px;height:7px;border-radius:50%;background:var(--c-teal);display:inline-block;}

/* ---------- section base ---------- */
.section{padding:0 0 var(--sp-section);}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{font-size:30px;margin-bottom:12px;}
.section-head p{color:var(--c-text-mute);font-size:16px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- promise 2x2 ---------- */
.promise-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.promise-card{
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:26px;
  display:flex;gap:18px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.promise-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.promise-icon{
  flex:0 0 52px;width:52px;height:52px;
  border-radius:14px;
  background:var(--c-primary-light);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.promise-icon svg{width:26px;height:26px;}
.promise-card h3{font-size:20px;margin-bottom:8px;}
.promise-card p{font-size:15px;color:var(--c-text-mute);}
.promise-card .promise-foot{
  margin-top:12px;font-size:13px;color:var(--c-teal);font-weight:600;
}

/* ---------- timeline ---------- */
.timeline-wrap{
  background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:38px 40px;
}
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;
  width:2px;background:var(--c-border);
}
.timeline-item{position:relative;padding-bottom:32px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:-34px;top:6px;
  width:20px;height:20px;border-radius:50%;
  background:#fff;border:2px solid var(--c-primary);
  box-shadow:0 0 0 4px rgba(43,93,140,.08);
}
.timeline-item:first-child::before{background:var(--c-primary);}
.timeline-item h3{font-size:19px;margin-bottom:8px;}
.timeline-item p{font-size:15px;color:var(--c-text-mute);max-width:820px;}
.timeline-meta{
  margin-top:10px;display:flex;flex-wrap:wrap;gap:10px;
  font-size:13px;color:var(--c-text-mute);
  font-variant-numeric:tabular-nums;
}
.timeline-meta em{font-style:normal;color:var(--c-primary);font-weight:600;}

/* ---------- form section ---------- */
.form-layout{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:48px;
  align-items:start;
}
.form-intro h2{font-size:30px;margin-bottom:14px;}
.form-intro p{color:var(--c-text-mute);margin-bottom:22px;}
.form-intro figure{
  margin:0 0 22px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--c-border);background:var(--c-primary-light);
}
.form-intro figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.form-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--c-text-mute);
  padding:9px 0;border-bottom:1px dashed var(--c-border);
}
.form-points li:last-child{border-bottom:0;}
.form-points .tick{color:var(--c-teal);font-weight:700;line-height:1.7;}

.form-card{
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:30px;
}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.field{margin-bottom:18px;}
.field label{
  display:block;font-size:14px;font-weight:600;
  margin-bottom:7px;color:var(--c-text);
}
.field .req{color:#C5524A;margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;height:44px;
  border:1px solid #D8E1EA;
  border-radius:var(--r-input);
  background:#fff;color:var(--c-text);
  padding:0 13px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:112px;padding:11px 13px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(43,93,140,.12);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#C5524A;}
.field .err{display:none;margin-top:6px;font-size:14px;color:#C5524A;}
.field.has-error .err{display:block;}
.form-consent{
  font-size:13px;color:var(--c-text-mute);
  margin:4px 0 18px;line-height:1.7;
}
.form-tip{
  display:none;margin-top:14px;padding:12px 14px;
  border-radius:10px;font-size:14px;
  background:rgba(62,158,143,.10);color:#2C7A6E;
}
.form-tip.is-show{display:block;}

/* ---------- contact bar ---------- */
.contact-bar{
  background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:28px 32px;
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.contact-item{display:flex;gap:14px;align-items:flex-start;}
.contact-item .ci-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  background:var(--c-primary-light);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.contact-item .ci-icon svg{width:22px;height:22px;}
.contact-item h3{font-size:16px;margin-bottom:4px;}
.contact-item p{font-size:14px;color:var(--c-text-mute);line-height:1.7;font-variant-numeric:tabular-nums;}

/* ---------- faq ---------- */
.faq-list{
  background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--c-border);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 26px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:17px;font-weight:600;color:var(--c-text);
  transition:background .2s ease;
}
.faq-q:hover{background:#FAFCFE;}
.faq-q .sign{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--c-border);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;transition:transform .22s ease,background .22s ease;
}
.faq-item.is-open .faq-q .sign{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a p{padding:0 26px 22px;font-size:15px;color:var(--c-text-mute);max-width:900px;}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--c-primary-dark);
  border-radius:var(--r-card);
  padding:38px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  color:#fff;
}
.cta-band h2{color:#fff;font-size:27px;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-foot);color:var(--c-foot-text);margin-top:20px;}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-top:64px;padding-bottom:48px;
}
.brand-footer .brand-main{color:#fff;}
.brand-footer .brand-sub{color:#8FA6BC;}
.brand-footer .brand-mark{background:rgba(255,255,255,.10);color:#fff;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:#9FB3C7;max-width:320px;}
.footer-col h3{color:#fff;font-size:16px;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{color:var(--c-foot-text);font-size:14px;transition:color .2s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-col p{font-size:14px;color:#9FB3C7;margin-bottom:10px;font-variant-numeric:tabular-nums;}
.footer-subscribe{display:flex;gap:8px;margin-top:14px;}
.footer-subscribe input{
  flex:1 1 auto;min-width:0;height:42px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-input);
  background:rgba(255,255,255,.06);
  color:#fff;padding:0 12px;font-size:14px;
}
.footer-subscribe input::placeholder{color:#8FA6BC;}
.footer-subscribe input:focus{outline:none;border-color:var(--c-accent);}
.footer-subscribe .btn{height:42px;padding:0 18px;font-size:14px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);}
.footer-bottom-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:20px;padding-bottom:20px;
  font-size:13px;color:#8FA6BC;flex-wrap:wrap;
}

/* ---------- mobile drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--c-primary-dark);
  display:flex;flex-direction:column;
  padding:26px 24px;
  transform:translateX(100%);
  transition:transform .3s ease;
  visibility:hidden;
}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px;}
.drawer-head .brand-main{color:#fff;}
.drawer-head .brand-sub{color:#8FA6BC;}
.drawer-head .brand-mark{background:rgba(255,255,255,.12);}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.25);
  background:transparent;color:#fff;font-size:20px;cursor:pointer;
}
.drawer-nav a{
  display:block;padding:16px 4px;
  color:#fff;font-size:20px;font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer-nav a.is-active{color:var(--c-accent);}
.drawer-foot{margin-top:auto;padding-top:24px;}
.drawer-foot .btn{width:100%;}
.drawer-foot p{margin-top:14px;font-size:14px;color:#9FB3C7;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  :root{--sp-section:64px;}
  .main-nav,.nav-phone,.nav-search{display:none;}
  .nav-toggle{display:flex;}
  .header-right{gap:12px;}
  .hero-shell{grid-template-columns:1fr;gap:32px;padding:32px;}
  .hero-copy h1{font-size:34px;}
  .form-layout{grid-template-columns:1fr;gap:32px;}
  .contact-bar{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .promise-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 26px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .timeline-wrap{padding:28px 22px;}
  .section-head h2,.form-intro h2{font-size:25px;}
  .hero-copy h1{font-size:30px;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  :root{--sp-section:52px;}
  .contact-bar{grid-template-columns:1fr;padding:22px;}
  .footer-grid{grid-template-columns:1fr;padding-top:44px;padding-bottom:32px;}
  .header-inner{height:60px;}
  .brand-main{font-size:15px;}
  .brand-mark{width:38px;height:38px;flex-basis:38px;font-size:13px;}
  .hero-shell{padding:24px;gap:26px;}
  .hero-copy h1{font-size:27px;}
  .form-card{padding:22px;}
  .faq-q{padding:18px 18px;font-size:16px;}
  .faq-a p{padding:0 18px 20px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;}
}