/* roulang page: index */
:root{
  --primary:#1A62C9;
  --primary-dark:#124A9C;
  --primary-tint:#EAF2FD;
  --primary-faint:#F5F8FD;
  --green:#12A67C;
  --green-tint:#E6F6F0;
  --amber:#ED9A2B;
  --bg:#FFFFFF;
  --bg-alt:#F5F8FD;
  --text:#101C2E;
  --text-2:#5A6B82;
  --text-3:#8697AB;
  --line:#E4EBF5;
  --line-strong:#D3DEEE;
  --danger:#D9534F;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 2px 12px rgba(16,40,80,.06);
  --shadow-2:0 10px 28px rgba(16,40,80,.10);
  --shadow-3:0 2px 10px rgba(16,40,80,.05);
  --ease:cubic-bezier(.2,.7,.3,1);
  --space-block:92px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;text-underline-offset:3px;transition:color .18s var(--ease);}
a:hover{text-decoration:underline;text-decoration-thickness:2px;}
button{font:inherit;color:inherit;cursor:pointer;}
input{font:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
h1,h2,h3,h4{font-weight:700;line-height:1.3;letter-spacing:0;}
h1{font-size:42px;line-height:1.28;}
h2{font-size:30px;}
h3{font-size:20px;}
p{color:var(--text-2);}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container-wide{max-width:1280px;}

/* ---------- 顶部活动条 ---------- */
.topbar{
  background:var(--primary-tint);
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.topbar-inner{
  display:flex;align-items:center;gap:16px;
  min-height:42px;padding-top:6px;padding-bottom:6px;
}
.topbar-text{color:var(--primary-dark);font-weight:600;flex:0 0 auto;}
.countdown{display:flex;align-items:center;gap:6px;margin-left:auto;}
.count-unit{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:36px;height:26px;padding:0 8px;
  background:#fff;border:1px solid var(--line);
  border-radius:999px;
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
  color:var(--amber);font-weight:700;font-size:13px;
}
.count-sep{color:var(--text-3);font-weight:700;}
.topbar-link{color:var(--primary);font-weight:600;white-space:nowrap;}
.topbar-link:hover{text-decoration:underline;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-3);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:70px;
}
.logo{
  display:flex;align-items:center;gap:10px;
  flex:0 0 auto;
  color:var(--text);font-weight:700;font-size:17px;
  text-decoration:none;
}
.logo:hover{text-decoration:none;}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),#3D86E8);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;flex:0 0 auto;
}
.logo-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
.nav-links a{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;
  color:var(--text-2);font-size:15px;font-weight:600;
  border-radius:8px;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-links a:hover{color:var(--primary);background:var(--primary-faint);text-decoration:none;}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;
  height:2px;border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;
  background:var(--primary-faint);
  border:1px solid var(--line);
  border-radius:10px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.nav-search:focus-within{
  background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-tint);
}
.nav-search svg{flex:0 0 auto;color:var(--text-3);}
.nav-search input{
  border:0;background:transparent;outline:none;
  width:150px;font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-toggle{
  display:none;
  width:44px;height:44px;border:1px solid var(--line-strong);
  background:#fff;border-radius:10px;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  text-decoration:none;white-space:nowrap;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),
             color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{background:#fff;color:var(--primary);border-color:var(--line-strong);}
.btn-secondary:hover{border-color:var(--primary);background:var(--primary-tint);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--line-strong);}
.btn-ghost:hover{border-color:var(--primary);background:var(--primary-tint);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none;}

/* ---------- 通用排版 ---------- */
.section{padding:var(--space-block) 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--primary);
  background:var(--primary-tint);
  padding:5px 12px;border-radius:999px;
  margin-bottom:16px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px;line-height:1.85;}
.lead{font-size:17px;line-height:1.9;color:var(--text-2);}
.hr-line{height:1px;background:var(--line);border:0;margin:0;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:700;line-height:1.6;
  background:var(--primary-tint);color:var(--primary);
}
.badge-green{background:var(--green-tint);color:var(--green);}
.badge-amber{background:#FDF2E1;color:#B5730F;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:66px 0 78px;
  background:linear-gradient(180deg,var(--primary-faint) 0%,#fff 100%);
  overflow:hidden;
}
.hero-inner{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.hero h1{margin-bottom:20px;}
.hero h1 em{
  font-style:normal;
  color:var(--primary);
  background:linear-gradient(180deg,transparent 62%,var(--primary-tint) 62%);
  padding:0 2px;
}
.hero-sub{
  font-size:18px;line-height:1.8;color:var(--text-2);
  max-width:560px;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-points{
  display:flex;flex-wrap:wrap;gap:12px 26px;
  padding-top:26px;border-top:1px solid var(--line);
}
.hero-point{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);font-weight:600;}
.dot{
  width:8px;height:8px;border-radius:50%;background:var(--green);flex:0 0 auto;
  box-shadow:0 0 0 4px var(--green-tint);
}
.dot-blue{background:var(--primary);box-shadow:0 0 0 4px var(--primary-tint);}
.dot-amber{background:var(--amber);box-shadow:0 0 0 4px #FDF2E1;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;height:460px;object-fit:cover;
  border-radius:var(--radius-img);
  background:#EEF3FA;
  box-shadow:var(--shadow-2);
}
.hero-float{
  position:absolute;left:-18px;bottom:32px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);
  padding:14px 18px;
  display:flex;align-items:center;gap:12px;
  max-width:250px;
}
.hero-float strong{display:block;font-size:15px;color:var(--text);line-height:1.4;}
.hero-float span{font-size:13px;color:var(--text-3);}

/* ---------- 卖点不等宽卡片 ---------- */
.value-grid{
  display:grid;
  grid-template-columns:5fr 4fr 3fr;
  gap:22px;
}
.value-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
  display:flex;flex-direction:column;
}
.value-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.value-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-tint);color:var(--primary);
  margin-bottom:18px;font-size:20px;font-weight:700;
}
.value-card h3{font-size:19px;margin-bottom:10px;}
.value-card p{font-size:15px;line-height:1.8;}
.value-card .value-more{margin-top:auto;padding-top:16px;font-size:14px;font-weight:600;}

/* ---------- Bento 图墙 ---------- */
.bento{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:20px;
}
.bento-item{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:#EEF3FA;
  box-shadow:var(--shadow-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
  min-height:220px;
}
.bento-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.bento-item img{
  width:100%;height:100%;position:absolute;inset:0;
  object-fit:cover;
  transition:transform .3s var(--ease);
}
.bento-item:hover img{transform:scale(1.03);}
.bento-caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:52px 22px 20px;
  background:linear-gradient(180deg,rgba(10,22,40,0) 0%,rgba(10,22,40,.82) 100%);
  color:#fff;
}
.bento-caption h3{font-size:18px;color:#fff;margin-bottom:6px;}
.bento-caption p{color:rgba(255,255,255,.84);font-size:14px;line-height:1.7;margin:0;}
.bento-a{grid-column:span 3;grid-row:span 2;min-height:460px;}
.bento-b{grid-column:span 3;}
.bento-c{grid-column:span 3;}
.bento-d{grid-column:span 6;min-height:200px;}
.bento-a:hover .bento-caption,.bento-b:hover .bento-caption,
.bento-c:hover .bento-caption,.bento-d:hover .bento-caption{background:linear-gradient(180deg,rgba(10,22,40,.05) 0%,rgba(10,22,40,.9) 100%);}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;
}
.stat{background:#fff;padding:28px 22px;}
.stat strong{
  display:block;font-size:30px;color:var(--primary);
  font-variant-numeric:tabular-nums;font-feature-settings:"tnum";
  line-height:1.2;margin-bottom:6px;
}
.stat span{font-size:14px;color:var(--text-2);}

/* ---------- 表单 CTA ---------- */
.cta-band{
  background:var(--primary-tint);
  border:1px solid var(--line);
  border-radius:18px;
  padding:44px;
  display:grid;grid-template-columns:1.1fr .9fr;
  gap:44px;align-items:center;
}
.cta-band h2{margin-bottom:12px;}
.cta-band p{font-size:16px;}
.cta-form{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-1);
}
.cta-form label{
  display:block;font-size:14px;font-weight:600;
  color:var(--text);margin-bottom:8px;
}
.field{margin-bottom:18px;}
.field input{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-btn);
  background:#fff;color:var(--text);
  outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input::placeholder{color:var(--text-3);}
.field input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-tint);}
.field.error input{border-color:var(--danger);}
.field-hint{font-size:12px;color:var(--text-3);margin-top:14px;line-height:1.7;}
.field-error{font-size:13px;color:var(--danger);margin-top:6px;display:none;}
.field.error .field-error{display:block;}
.form-success{
  display:none;align-items:center;gap:8px;
  margin-top:14px;padding:10px 14px;
  background:var(--green-tint);color:#0C7A5B;
  border-radius:var(--radius-btn);font-size:14px;font-weight:600;
}
.form-success.show{display:flex;}

/* ---------- 资讯列表（CMS） ---------- */
.news-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:36px;
}
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.news-card{
  display:flex;flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  box-shadow:var(--shadow-1);
  color:var(--text);
  text-decoration:none;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong);text-decoration:none;}
.news-card h3{
  font-size:17px;line-height:1.5;margin:14px 0 10px;
  transition:color .18s var(--ease);
}
.news-card:hover h3{color:var(--primary);}
.news-card p{
  font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;margin-bottom:16px;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;margin-top:auto;padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.empty-state{
  grid-column:1 / -1;
  min-height:180px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;text-align:center;
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-card);
  background:#fff;padding:32px;
}
.empty-icon{
  width:48px;height:48px;border-radius:50%;
  background:var(--primary-faint);color:var(--text-3);
  display:flex;align-items:center;justify-content:center;font-size:20px;
}
.empty-state strong{font-size:15px;color:var(--text);}
.empty-state span{font-size:14px;color:var(--text-3);}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;
  border-bottom:1px solid var(--line);
  position:relative;
}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px 22px 16px;
  background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);
  line-height:1.5;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-item::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;
  border-radius:3px;background:var(--primary);
  opacity:0;transition:opacity .18s var(--ease);
}
.faq-item.open::before{opacity:1;}
.faq-arrow{
  flex:0 0 auto;width:24px;height:24px;
  color:var(--text-3);
  transition:transform .22s var(--ease),color .18s var(--ease);
}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--primary);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s var(--ease);
}
.faq-a-inner{padding:0 44px 24px 16px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- 分类入口 ---------- */
.cat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.cat-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);color:var(--text);text-decoration:none;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);text-decoration:none;}
.cat-card img{width:100%;height:150px;object-fit:cover;background:#EEF3FA;}
.cat-card-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.cat-card h3{font-size:17px;margin-bottom:8px;transition:color .18s var(--ease);}
.cat-card:hover h3{color:var(--primary);}
.cat-card p{font-size:14px;line-height:1.75;margin-bottom:14px;}
.cat-card .badge{align-self:flex-start;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-2);max-width:300px;}
.footer-col h4{
  font-size:15px;font-weight:700;color:var(--text);
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-contact p{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:14px;}
.qr-box{
  width:112px;height:112px;border-radius:var(--radius-img);
  background:#fff;border:1px dashed var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-3);font-size:12px;text-align:center;line-height:1.5;
  padding:8px;
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:13px;color:var(--text-3);flex-wrap:wrap;
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 20px;}
  .nav-search input{width:120px;}
}
@media (max-width:1023px){
  :root{--space-block:68px;}
  h1{font-size:34px;}
  h2{font-size:26px;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-2);
    flex-direction:column;align-items:stretch;gap:0;
    padding:6px 16px 14px;
    display:none;
  }
  body.nav-open .nav-links{display:flex;}
  .nav-links a{
    min-height:52px;padding:0 6px;font-size:16px;
    border-bottom:1px solid var(--line);border-radius:0;
  }
  .nav-links a:last-child{border-bottom:0;}
  .nav-links a.active::after{display:none;}
  .header-inner{justify-content:space-between;gap:12px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-figure img{height:340px;}
  .hero-float{left:16px;bottom:16px;}
  .value-grid{grid-template-columns:1fr 1fr;}
  .value-grid .value-card:last-child{grid-column:span 2;}
  .bento{grid-template-columns:repeat(4,1fr);}
  .bento-a{grid-column:span 4;grid-row:span 1;min-height:320px;}
  .bento-b,.bento-c{grid-column:span 2;min-height:230px;}
  .bento-d{grid-column:span 4;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:32px;gap:28px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--space-block:52px;}
  h1{font-size:27px;line-height:1.32;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  body{font-size:15px;}
  .container{padding:0 16px;}
  .topbar-inner{flex-wrap:wrap;gap:8px 12px;padding-top:8px;padding-bottom:8px;}
  .topbar-text{font-size:13px;}
  .countdown{margin-left:0;order:3;width:100%;}
  .topbar-link{margin-left:auto;}
  .hero{padding:40px 0 52px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-figure img{height:240px;}
  .hero-float{position:static;margin-top:14px;max-width:none;}
  .section-head{margin-bottom:32px;}
  .value-grid{grid-template-columns:1fr;}
  .value-grid .value-card:last-child{grid-column:span 1;}
  .bento{grid-template-columns:1fr;}
  .bento-a,.bento-b,.bento-c,.bento-d{grid-column:span 1;min-height:220px;}
  .bento-a{min-height:280px;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat{padding:20px 16px;}
  .stat strong{font-size:24px;}
  .cta-band{padding:24px 20px;border-radius:14px;}
  .cta-form{padding:20px;}
  .news-grid{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:1fr;}
  .news-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .faq-q{font-size:16px;padding:18px 4px 18px 14px;}
  .faq-a-inner{padding:0 16px 20px 14px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:479px){
  .logo-text{font-size:15px;}
  .logo-mark{width:32px;height:32px;font-size:15px;}
  .stats{grid-template-columns:1fr;}
  .btn{padding:0 16px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --brand:#1A62C9;
  --brand-deep:#124A9C;
  --brand-soft:#EAF2FD;
  --brand-tint:#F5F8FD;
  --accent:#12A67C;
  --amber:#ED9A2B;
  --ink:#101C2E;
  --ink-2:#5A6B82;
  --ink-3:#8697AB;
  --line:#E4EBF5;
  --line-2:#D3DEEE;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 2px 12px rgba(16,40,80,.06);
  --shadow-2:0 10px 28px rgba(16,40,80,.10);
  --shadow-3:0 2px 10px rgba(16,40,80,.05);
  --dur:180ms;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:#fff;
}
img{display:block;max-width:100%;border-radius:var(--radius-img);}
a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
a:hover{color:var(--brand-deep);}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* 阅读进度 */
.read-progress{position:fixed;top:0;left:0;right:0;height:2px;background:transparent;z-index:120;pointer-events:none;}
.read-progress span{display:block;height:100%;width:0;background:var(--brand);transition:width 120ms linear;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  border:1px solid transparent;transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
  min-width:44px;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(26,98,201,.22);}
.btn-outline{background:#fff;border-color:var(--line-2);color:var(--brand);}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-deep);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid var(--line);box-shadow:var(--shadow-3);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:70px;}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(140deg,#1A62C9,#4A8BE8);color:#fff;
  display:grid;place-items:center;font-size:17px;font-weight:700;
}
.logo-text{font-size:17px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:12px;}
.nav-links a{
  display:inline-block;padding:9px 12px;border-radius:8px;
  font-size:15px;color:var(--ink-2);text-decoration:none;
  border-bottom:2px solid transparent;transition:color var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-links a:hover{color:var(--brand);background:var(--brand-tint);}
.nav-links a.active{color:var(--brand);font-weight:600;border-bottom-color:var(--brand);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  border:1px solid var(--line-2);border-radius:var(--radius-btn);
  background:#fff;color:var(--ink-3);transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);}
.nav-search input{width:126px;border:0;outline:0;background:transparent;font-size:14px;color:var(--ink);}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-2);background:#fff;
  border-radius:var(--radius-btn);cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--ink);border-radius:2px;transform:translateX(-50%);
  content:"";transition:transform var(--dur) var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* 文章首屏 */
.article-hero{
  padding:26px 0 42px;
  background:
    linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.9) 55%,rgba(245,248,253,.86) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  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:22px;}
.breadcrumb a{color:var(--ink-2);text-decoration:none;}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--line-2);}
.breadcrumb .current{color:var(--ink-3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;
}
.tag-accent{background:rgba(18,166,124,.12);color:var(--accent);}
.tag-amber{background:rgba(237,154,43,.14);color:#B97612;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
h1.article-title{
  font-size:clamp(27px,3.4vw,34px);line-height:1.35;max-width:24ch;
  margin-bottom:16px;font-weight:700;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--ink-3);}
.article-meta .dot{color:var(--line-2);}
.tips-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;
  margin-top:28px;padding:16px 20px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);
}
.tips-strip div{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.7;}
.tips-strip .dot-mark{
  flex:0 0 8px;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:9px;
}

/* 主体布局 */
main{display:block;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;
  align-items:start;padding:48px 0 72px;
}
.article-main{min-width:0;}
.article-body{
  max-width:820px;font-size:17px;line-height:1.9;color:#1B2B41;
}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  position:relative;font-size:26px;line-height:1.4;margin:40px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:20px;margin:28px 0 12px;}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.15em;}
.article-body li{margin:.35em 0;line-height:1.8;}
.article-body a{color:var(--brand);text-underline-offset:3px;}
.article-body img{margin:18px auto;border-radius:var(--radius-img);}
.article-body figure{margin:22px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-3);margin-top:8px;}
.article-body blockquote{
  margin:22px 0;padding:14px 18px;background:var(--brand-tint);
  border-left:3px solid var(--brand);border-radius:8px;color:var(--ink-2);
}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;}
.article-body th,.article-body td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}
.article-body th{background:var(--brand-tint);font-weight:600;}
.article-body code{
  background:var(--brand-tint);border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;font-size:15px;
}

.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;text-align:center;padding:48px 24px;
  background:var(--brand-tint);border:1px solid var(--line);border-radius:var(--radius-card);
}
.empty-icon{
  width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
  background:#fff;border:1px solid var(--line-2);color:var(--brand);font-size:22px;font-weight:700;
}
.empty-state h2{font-size:22px;}
.empty-state p{color:var(--ink-2);font-size:15px;max-width:40ch;}

.section-divider{max-width:820px;height:1px;background:var(--line);margin:44px 0 32px;}

/* 侧栏 */
.article-side{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:17px;margin-bottom:14px;}
.side-list{list-style:none;padding:0;margin:0;display:grid;gap:2px;}
.side-list a{
  display:block;padding:9px 10px;border-radius:8px;font-size:14px;
  color:var(--ink-2);text-decoration:none;transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.side-list a:hover{background:var(--brand-tint);color:var(--brand);}
.side-card p{font-size:14px;color:var(--ink-2);line-height:1.75;}
.side-card .side-note{margin-top:12px;font-size:13px;color:var(--ink-3);}
.side-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;margin-bottom:14px;}

/* 相关推荐 */
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px;}
.related-head h2{font-size:24px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  text-decoration:none;color:inherit;
  transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--line-2);color:inherit;}
.card-media{aspect-ratio:16/9;overflow:hidden;background:#EEF3FA;border-radius:0;}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 260ms var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;}
.card-body h3{font-size:18px;line-height:1.45;}
.card-body p{font-size:14px;color:var(--ink-2);line-height:1.7;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);}
.card-foot .go{color:var(--brand);font-weight:600;}

.back-row{margin-top:28px;}

/* FAQ */
.faq-section{padding:8px 0 72px;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.section-head p{color:var(--ink-2);font-size:15px;}
.faq-list{max-width:900px;border-top:1px solid var(--line);}
.faq-item{position:relative;border-bottom:1px solid var(--line);}
.faq-item summary{
  position:relative;cursor:pointer;list-style:none;padding:20px 44px 20px 18px;
  font-size:17px;font-weight:600;transition:color var(--dur) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:18px;top:26px;width:9px;height:9px;
  border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:rotate(45deg);transition:transform 220ms var(--ease);
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:2px;background:var(--brand);
}
.faq-item summary:hover{color:var(--brand);}
.faq-answer{padding:0 18px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:76ch;}

/* CTA */
.cta-band{padding:0 0 88px;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--brand-soft);border:1px solid #D8E6FA;border-radius:18px;padding:34px 36px;
}
.cta-inner h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:8px;}
.cta-inner p{color:var(--ink-2);font-size:15px;max-width:56ch;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--brand-tint);border-top:1px solid var(--line);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand p{color:var(--ink-2);font-size:14px;margin-top:14px;max-width:34ch;line-height:1.75;}
.footer-col h4{font-size:15px;margin:0 0 14px;font-weight:600;}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
.footer-col a{color:var(--ink-2);text-decoration:none;font-size:14px;}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-contact p{font-size:14px;color:var(--ink-2);line-height:1.75;}
.qr-box{
  width:114px;height:114px;margin-top:14px;border:1px dashed var(--line-2);border-radius:12px;
  background:#fff;display:grid;place-items:center;text-align:center;font-size:12px;color:var(--ink-3);line-height:1.5;
}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:18px 0;
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3);}
.footer-bottom a:hover{color:var(--brand);}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

@media (max-width:1279px){
  .article-layout{gap:36px;}
}
@media (max-width:1023px){
  .container{padding:0 20px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;display:none;flex-direction:column;
    align-items:stretch;gap:0;margin:0;padding:8px 20px 18px;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);
  }
  .nav-links.open{display:flex;}
  .nav-links a{font-size:16px;padding:13px 6px;border-radius:0;border-bottom:1px solid var(--line);}
  .nav-links a.active{border-bottom-color:var(--line);box-shadow:inset 3px 0 0 var(--brand);padding-left:14px;}
  .header-actions{margin-left:auto;}
  .nav-search{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:34px;padding:36px 0 56px;}
  .article-side{position:static;grid-template-columns:1fr 1fr;}
  .tips-strip{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-inner{padding:28px 24px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .logo-text{font-size:16px;}
  .article-hero{padding:20px 0 32px;}
  .breadcrumb{margin-bottom:16px;}
  .breadcrumb .current{white-space:normal;max-width:100%;}
  h1.article-title{font-size:27px;max-width:100%;}
  .article-body{font-size:17px;line-height:1.9;}
  .article-body h2{font-size:22px;margin:32px 0 14px;}
  .article-body h3{font-size:19px;}
  .card-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .cta-band{padding:0 0 64px;}
  .faq-item summary{font-size:16px;padding:18px 40px 18px 14px;}
}
@media (max-width:479px){
  .article-side{grid-template-columns:1fr;}
  .tips-strip{padding:14px 16px;}
  .side-card{padding:18px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --brand:#1A62C9;
  --brand-deep:#124A9C;
  --brand-tint:#EAF2FD;
  --brand-soft:#F5F8FD;
  --accent:#12A67C;
  --amber:#ED9A2B;
  --ink:#101C2E;
  --ink-2:#5A6B82;
  --ink-3:#8697AB;
  --line:#E4EBF5;
  --line-2:#D3DEEE;
  --white:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 2px 12px rgba(16,40,80,.06);
  --sh-2:0 10px 28px rgba(16,40,80,.10);
  --sh-3:0 2px 10px rgba(16,40,80,.05);
  --t:180ms cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover;background:#EEF3FA}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px}
a:hover{text-decoration:underline}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background var(--t),border-color var(--t),color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;text-decoration:none;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(26,98,201,.18)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 10px 22px rgba(18,74,156,.22)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line-2)}
.btn-ghost:hover{background:var(--brand-tint);border-color:var(--brand);text-decoration:none}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);box-shadow:var(--sh-3);
}
.header-inner{display:flex;align-items:center;gap:26px;height:70px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:none}
.logo:hover{text-decoration:none}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;
}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-links a{
  position:relative;padding:8px 12px;font-size:15px;color:var(--ink-2);
  font-weight:500;text-decoration:none;border-radius:8px;transition:color var(--t),background var(--t);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:transparent;border-radius:2px;transition:background var(--t);
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);text-decoration:none}
.nav-links a.active{color:var(--brand)}
.nav-links a.active::after{background:var(--brand)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border:1px solid var(--line-2);border-radius:10px;background:var(--brand-soft);
  color:var(--ink-3);transition:border-color var(--t),background var(--t),box-shadow var(--t);
}
.nav-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-tint)}
.nav-search input{
  border:0;background:transparent;outline:none;width:130px;font-size:14px;color:var(--ink);
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-2);border-radius:10px;
  background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ 内页顶部条带 ============ */
.page-hero{
  background:var(--brand-tint);
  border-bottom:1px solid var(--line);
  padding:40px 0 44px;
}
.page-hero-grid{display:grid;grid-template-columns:1fr 320px;gap:44px;align-items:center}
.breadcrumb{font-size:14px;color:var(--ink-3);margin-bottom:16px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb span.sep{margin:0 8px;color:var(--ink-3)}
.breadcrumb .cur{color:var(--ink-3)}
.page-hero h1{font-size:34px;line-height:1.3;font-weight:700;color:var(--ink)}
.page-hero .lead{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:640px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 16px;
  border-radius:999px;background:#fff;border:1px solid var(--line-2);
  font-size:13px;color:var(--brand);font-weight:600;text-decoration:none;
  transition:background var(--t),border-color var(--t),color var(--t);
}
.chip:hover{background:var(--brand);border-color:var(--brand);color:#fff;text-decoration:none}
.page-hero-figure img{width:100%;height:200px;border-radius:var(--r-card);box-shadow:var(--sh-1)}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-alt{background:var(--brand-soft)}
.section-head{max-width:760px;margin-bottom:44px}
.section-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand);font-size:12px;font-weight:700;
  margin-bottom:14px;
}
.section-head h2{font-size:30px;line-height:1.34;color:var(--ink)}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.85}

/* ============ 位置概览卡（不等宽） ============ */
.loc-grid{display:grid;grid-template-columns:1.15fr 1fr .85fr;gap:22px}
.loc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.loc-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--line-2)}
.loc-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-tint);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.loc-card h3{font-size:19px;line-height:1.45;color:var(--ink);margin-bottom:10px}
.loc-card p{font-size:15px;color:var(--ink-2);line-height:1.8}
.loc-meta{margin-top:16px;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}

/* ============ 步骤轴 ============ */
.steps{max-width:920px;margin:0 auto}
.step{position:relative;display:grid;grid-template-columns:56px 1fr;gap:22px;padding-bottom:34px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:27px;top:56px;bottom:0;width:1px;background:var(--line-2);
}
.step:last-child::before{display:none}
.step-num{
  width:56px;height:56px;border-radius:50%;background:#fff;border:2px solid var(--brand);
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
  position:relative;z-index:1;transition:background var(--t),color var(--t);
}
.step:hover .step-num{background:var(--brand);color:#fff}
.step-body{padding-top:6px}
.step-body h3{font-size:20px;line-height:1.5;color:var(--ink);margin-bottom:10px}
.step-body p{font-size:16px;color:var(--ink-2);line-height:1.85}
.step-note{
  margin-top:12px;padding:12px 16px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 8px 8px 0;
  font-size:14px;color:var(--ink-2);line-height:1.8;
}
.step-note strong{color:var(--ink);font-weight:600}

/* ============ 设备对照表 ============ */
.device-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.table-wrap{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:#fff;box-shadow:var(--sh-1)}
.cmp-table{width:100%;border-collapse:collapse;font-size:15px}
.cmp-table th,.cmp-table td{
  text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);vertical-align:top;
}
.cmp-table thead th{background:var(--brand-soft);font-size:14px;color:var(--ink-2);font-weight:600}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table td:first-child{font-weight:600;color:var(--ink);white-space:nowrap}
.cmp-table td{color:var(--ink-2);line-height:1.75}
.device-figure img{width:100%;height:236px;box-shadow:var(--sh-1)}
.device-figure figcaption{margin-top:12px;font-size:13px;color:var(--ink-3);text-align:center}

/* ============ 误入位置提醒 ============ */
.warn-list{display:grid;gap:14px;max-width:960px}
.warn-item{
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:box-shadow var(--t),transform var(--t);
}
.warn-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.warn-item h3{font-size:17px;color:var(--ink);margin-bottom:6px;line-height:1.5}
.warn-item p{font-size:15px;color:var(--ink-2);line-height:1.8}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;
  font-size:12px;font-weight:700;white-space:nowrap;margin-top:2px;
}
.tag-warn{background:#FDF1E2;color:#9A6412}
.tag-info{background:var(--brand-tint);color:var(--brand)}
.tag-ok{background:#E5F6F0;color:#0C7A5B}

/* ============ 说明更新记录 ============ */
.news-list{display:grid;gap:0;border-top:1px solid var(--line);max-width:960px}
.news-item{
  display:grid;grid-template-columns:120px 1fr auto;gap:20px;align-items:center;
  padding:20px 4px;border-bottom:1px solid var(--line);
  transition:background var(--t);
}
.news-item:hover{background:var(--brand-soft)}
.news-date{font-size:14px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.news-item h3{font-size:16px;font-weight:600;color:var(--ink);line-height:1.6}
.news-item .news-more{font-size:14px;color:var(--brand);white-space:nowrap}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{position:relative;border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:22px 42px 22px 4px;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{
  content:"";position:absolute;right:8px;top:32px;width:9px;height:9px;
  border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:rotate(45deg);transition:transform var(--t),border-color var(--t);
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--brand)}
.faq-item[open]::before{
  content:"";position:absolute;left:-14px;top:18px;bottom:18px;width:3px;
  background:var(--brand);border-radius:3px;
}
.faq-body{padding:0 42px 24px 4px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-body p+p{margin-top:10px}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand-tint);border:1px solid #D5E4F8;border-radius:18px;
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:26px;line-height:1.4;color:var(--ink)}
.cta-band p{margin-top:10px;font-size:15px;color:var(--ink-2);line-height:1.8;max-width:560px}
.cta-actions{display:flex;gap:12px;flex:none}

.rel-links{
  margin-top:36px;padding-top:28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
}
.rel-links .rel-title{font-size:14px;color:var(--ink-3);margin-right:4px}
.rel-links a{
  font-size:14px;color:var(--brand);text-decoration:underline;
  text-decoration-thickness:1px;text-underline-offset:3px;
}
.rel-links a:hover{text-decoration-thickness:2px}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-soft);border-top:1px solid var(--line);padding:60px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--ink-2);line-height:1.85;max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--ink-2);text-decoration:none;transition:color var(--t)}
.footer-col ul a:hover{color:var(--brand);text-decoration:underline}
.footer-contact p{font-size:14px;color:var(--ink-2);line-height:1.85;margin-bottom:10px}
.qr-box{
  margin-top:14px;width:132px;height:132px;border:1px dashed var(--line-2);border-radius:12px;
  background:#fff;display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12px;color:var(--ink-3);line-height:1.6;padding:12px;
}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1120px}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section-head h2{font-size:26px}
  .nav-links{
    display:none;position:absolute;top:70px;left:0;right:0;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--sh-2);
    flex-direction:column;align-items:stretch;gap:2px;padding:12px 20px 18px;
  }
  .nav-links.open{display:flex}
  .nav-links a{font-size:16px;padding:12px 10px}
  .nav-links a::after{display:none}
  .nav-links a.active{background:var(--brand-tint)}
  .nav-toggle{display:flex}
  .nav-search{display:none}
  .header-inner{gap:16px;justify-content:space-between}
  .page-hero{padding:32px 0 36px}
  .page-hero-grid{grid-template-columns:1fr;gap:26px}
  .page-hero h1{font-size:28px}
  .page-hero-figure img{height:180px}
  .loc-grid{grid-template-columns:1fr 1fr}
  .device-grid{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .news-item{grid-template-columns:104px 1fr;grid-template-rows:auto auto}
  .news-item .news-more{grid-column:2}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  body{font-size:16px}
  .section-head h2{font-size:22px}
  .section-head{margin-bottom:30px}
  .page-hero h1{font-size:26px;line-height:1.34}
  .page-hero .lead{font-size:15px}
  .loc-grid{grid-template-columns:1fr}
  .step{grid-template-columns:44px 1fr;gap:16px;padding-bottom:28px}
  .step-num{width:44px;height:44px;font-size:14px;border-width:2px}
  .step::before{left:21px;top:44px}
  .step-body{padding-top:2px}
  .step-body h3{font-size:18px}
  .step-body p{font-size:15px}
  .cta-band{flex-direction:column;align-items:stretch;padding:28px 22px;gap:22px}
  .cta-band h2{font-size:21px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .faq-item summary{font-size:16px;padding:18px 36px 18px 4px}
  .faq-item summary::after{top:27px;right:6px}
  .faq-body{padding:0 36px 20px 4px;font-size:15px}
  .faq-item[open]::before{left:-8px}
  .warn-item{grid-template-columns:1fr;gap:10px}
  .news-item{grid-template-columns:1fr;gap:6px;padding:18px 2px}
  .news-item .news-more{grid-column:1}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .cmp-table th,.cmp-table td{padding:12px 14px;font-size:14px}
}
@media (max-width:479px){
  .logo-text{font-size:15px}
  .page-hero h1{font-size:23px}
  .header-actions .btn{display:none}
  .chip{height:32px;padding:0 13px;font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --primary:#1A62C9;
  --primary-dark:#124A9C;
  --primary-soft:#EAF2FD;
  --primary-tint:#F5F8FD;
  --accent:#12A67C;
  --accent-soft:#E7F6F1;
  --amber:#ED9A2B;
  --amber-soft:#FDF1E0;
  --ink:#101C2E;
  --ink-2:#5A6B82;
  --ink-3:#8697AB;
  --line:#E4EBF5;
  --line-2:#D3DEEE;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 2px 12px rgba(16,40,80,.06);
  --shadow-2:0 10px 28px rgba(16,40,80,.10);
  --shadow-header:0 2px 10px rgba(16,40,80,.05);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:#FFFFFF;
}
img{max-width:100%;display:block;border-style:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
a:hover{color:var(--primary-dark);text-decoration-thickness:2px;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1320px){.container{max-width:1280px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-header);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:0 0 auto;}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:34px;height:34px;border-radius:9px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:700;line-height:1;
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:0;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;margin-left:8px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  padding:8px 12px;border-radius:8px;color:var(--ink-2);font-size:15px;
  text-decoration:none;transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-links a:hover{color:var(--primary);background:var(--primary-tint);}
.nav-links a.active{color:var(--primary);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  border:1px solid var(--line-2);border-radius:var(--radius-btn);
  background:var(--primary-tint);color:var(--ink-3);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.nav-search:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px var(--primary-soft);}
.nav-search input{
  width:124px;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink);
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-2);border-radius:10px;
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);position:relative;transition:background .18s var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform .18s var(--ease),top .18s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--line-2);}
.btn-outline:hover{border-color:var(--primary);background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-1px);}
.btn:active{transform:translateY(0);}

/* ---------- 顶部条带 ---------- */
.page-band{
  background:linear-gradient(180deg,#F5F8FD 0%,#EAF2FD 100%);
  border-bottom:1px solid var(--line);
  padding:52px 0 56px;
}
.band-inner{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:center;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);}
.breadcrumb a{color:var(--ink-3);text-decoration:none;}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;}
.breadcrumb .current{color:var(--ink-2);}
.page-band h1{
  margin-top:16px;font-size:36px;line-height:1.28;font-weight:700;letter-spacing:0;
}
.band-lead{margin-top:16px;font-size:17px;color:var(--ink-2);max-width:620px;}
.anchor-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.pill{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line-2);color:var(--ink-2);font-size:14px;
  text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.pill:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft);transform:translateY(-1px);}
.band-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);
  background:#EEF3FA;box-shadow:var(--shadow-2);
}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--primary-tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:720px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;
}
.sec-head h2{margin-top:14px;font-size:30px;line-height:1.32;font-weight:700;}
.sec-head p{margin-top:14px;font-size:16px;color:var(--ink-2);}

/* ---------- 准备清单 ---------- */
.prep-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:56px;align-items:start;}
.prep-head h2{margin-top:14px;font-size:30px;line-height:1.32;font-weight:700;}
.prep-head > p{margin-top:16px;font-size:16px;color:var(--ink-2);}
.check-list{display:grid;gap:16px;}
.check-list li{
  display:flex;gap:14px;padding:18px 20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  transition:box-shadow .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease);
}
.check-list li:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--line-2);}
.tick{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:var(--primary-soft);
  color:var(--primary);display:grid;place-items:center;font-size:13px;font-weight:700;line-height:1;
}
.check-list strong{display:block;font-size:16px;font-weight:600;}
.check-list p{margin-top:4px;font-size:14px;line-height:1.7;color:var(--ink-2);}

/* ---------- 交错图文步骤 ---------- */
.steps-list{display:grid;gap:32px;}
.step-row{
  display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);gap:44px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:26px;
  transition:box-shadow .18s var(--ease),transform .18s var(--ease);
}
.step-row:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.step-row.reverse .step-media{order:2;}
.step-row.reverse .step-text{order:1;}
.step-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);background:#EEF3FA;}
.step-num{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;
}
.step-text h3{margin-top:14px;font-size:21px;line-height:1.42;font-weight:600;}
.step-text > p{margin-top:12px;font-size:15.5px;color:var(--ink-2);}
.step-points{margin-top:14px;display:grid;gap:8px;}
.step-points li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-2);}
.step-points li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;
}
.badge-primary{background:var(--primary-soft);color:var(--primary);}
.badge-success{background:var(--accent-soft);color:#0F7A5C;}
.badge-amber{background:var(--amber-soft);color:#A96A11;}
.step-note{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 卡点对照 ---------- */
.issue-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.issue-card{
  padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:box-shadow .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease);
}
.issue-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--line-2);}
.issue-card h3{font-size:18px;line-height:1.5;font-weight:600;}
.issue-row{margin-top:14px;display:grid;grid-template-columns:72px minmax(0,1fr);gap:12px;align-items:start;}
.issue-row + .issue-row{margin-top:12px;padding-top:12px;border-top:1px solid var(--line);}
.issue-row span{font-size:13px;color:var(--ink-3);padding-top:2px;}
.issue-row p{font-size:14.5px;line-height:1.75;color:var(--ink-2);}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto;border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  position:relative;cursor:pointer;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px 22px 18px;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .22s var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:2px;
  background:transparent;transition:background .22s var(--ease);
}
.faq details[open] summary{color:var(--primary);}
.faq details[open] summary::before{background:var(--primary);}
.faq .arrow{
  flex:0 0 auto;width:18px;height:18px;color:var(--ink-3);
  transition:transform .22s var(--ease),color .22s var(--ease);
}
.faq details[open] .arrow{transform:rotate(180deg);color:var(--primary);}
.faq-a{padding:0 4px 24px 18px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:780px;}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 88px;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--primary-soft);border:1px solid var(--line-2);border-radius:18px;
  padding:40px 42px;
}
.cta-inner h2{font-size:26px;line-height:1.36;font-weight:700;}
.cta-inner p{margin-top:10px;font-size:15.5px;color:var(--ink-2);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 相关分类 ---------- */
.related{padding:0 0 88px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:32px;}
.related-link{
  display:block;padding:20px 22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);text-decoration:none;color:var(--ink);
  transition:box-shadow .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease);
}
.related-link:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--line-2);color:var(--ink);}
.related-link strong{display:block;font-size:17px;color:var(--primary);}
.related-link p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--ink-2);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-tint);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--ink-2);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--ink);}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--ink-2);text-decoration:none;transition:color .18s var(--ease);}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.footer-contact p{font-size:14px;color:var(--ink-2);margin-bottom:10px;}
.qr-box{
  margin-top:16px;width:126px;height:126px;padding:10px;border:1px dashed var(--line-2);
  border-radius:var(--radius-img);background:#fff;display:grid;place-items:center;
  font-size:12px;line-height:1.6;color:var(--ink-3);text-align:center;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3);text-decoration:none;}
.footer-bottom a:hover{color:var(--primary);text-decoration:underline;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .band-inner{grid-template-columns:minmax(0,1fr) 300px;gap:36px;}
}
@media (max-width:1023px){
  .container{padding:0 20px;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;left:0;right:0;top:72px;display:none;flex-direction:column;
    align-items:stretch;gap:4px;margin:0;padding:12px 16px 20px;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:12px 14px;font-size:16px;border-radius:10px;min-height:48px;}
  .nav-links a.active::after{display:none;}
  .nav-links a.active{background:var(--primary-soft);}
  .page-band{padding:40px 0 44px;}
  .band-inner{grid-template-columns:minmax(0,1fr);gap:28px;}
  .band-media{max-width:420px;}
  .page-band h1{font-size:30px;}
  .section{padding:64px 0;}
  .prep-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .step-row{grid-template-columns:minmax(0,1fr);gap:22px;padding:22px;}
  .step-row.reverse .step-media{order:0;}
  .step-row.reverse .step-text{order:0;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding-bottom:36px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .cta-band{padding:0 0 64px;}
  .related{padding:0 0 64px;}
}
@media (max-width:767px){
  .header-inner{height:64px;gap:12px;}
  .nav-links{top:64px;}
  .logo-text{font-size:15px;}
  .btn-sm{display:none;}
  .page-band h1{font-size:26px;}
  .band-lead{font-size:16px;}
  .sec-head{margin-bottom:32px;}
  .sec-head h2,.prep-head h2{font-size:23px;}
  .section{padding:48px 0;}
  .step-text h3{font-size:19px;}
  .issue-grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .issue-card{padding:20px;}
  .faq summary{font-size:16px;padding:18px 4px 18px 16px;}
  .faq-a{padding:0 4px 20px 16px;font-size:14.5px;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .page-band h1{font-size:24px;line-height:1.34;}
  .band-media{max-width:100%;}
  .check-list li{padding:16px;}
  .step-row{padding:18px;}
  .footer-brand p{max-width:100%;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition:none !important;animation:none !important;}
}

/* roulang page: category3 */
:root{
  --primary:#1A62C9;
  --primary-dark:#124A9C;
  --primary-tint:#EAF2FD;
  --primary-ultra:#F5F8FD;
  --mint:#12A67C;
  --mint-tint:#E7F6F1;
  --amber:#ED9A2B;
  --amber-tint:#FDF3E4;
  --ink:#101C2E;
  --ink-2:#5A6B82;
  --ink-3:#8697AB;
  --line:#E4EBF5;
  --line-2:#D3DEEE;
  --bg:#FFFFFF;
  --bg-alt:#F5F8FD;
  --danger:#D9534F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --sh-1:0 2px 12px rgba(16,40,80,.06);
  --sh-2:0 10px 28px rgba(16,40,80,.10);
  --sh-nav:0 2px 10px rgba(16,40,80,.05);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

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

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

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover;background:#EEF3FA;}

a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:color var(--t),text-decoration-thickness var(--t);}
a:hover{color:var(--primary-dark);text-decoration-thickness:2px;}

button,input,select,textarea{font:inherit;color:inherit;}

button{cursor:pointer;border:none;background:none;}

h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:0;}

p{margin:0;}

ul,ol{margin:0;padding:0;list-style:none;}

svg{display:block;}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

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

:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  text-decoration:none;
  border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 10px rgba(26,98,201,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(18,74,156,.24);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{background:#fff;color:var(--primary);border-color:var(--line-2);}
.btn-secondary:hover{background:var(--primary-tint);border-color:var(--primary);color:var(--primary-dark);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 12px;border-radius:999px;font-size:12px;font-weight:600;background:var(--primary-tint);color:var(--primary);line-height:1.7;}
.badge-mint{background:var(--mint-tint);color:var(--mint);}
.badge-amber{background:var(--amber-tint);color:#B97512;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-nav);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:70px;
}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--primary),#2E7BE0);
  color:#fff;font-size:17px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:0;}
.logo:hover .logo-text{color:var(--primary);}

.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
.nav-links a{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 13px;
  font-size:15px;color:var(--ink-2);text-decoration:none;font-weight:500;
  border-radius:8px;
  transition:color var(--t),background var(--t);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--primary);background:var(--primary-ultra);}
.nav-links a.active{color:var(--primary);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:6px;height:2px;
  background:var(--primary);border-radius:2px;
}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;
  border:1px solid var(--line-2);border-radius:var(--r-input);
  background:var(--primary-ultra);color:var(--ink-3);
  transition:border-color var(--t),background var(--t),box-shadow var(--t);
}
.nav-search:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px var(--primary-tint);}
.nav-search input{
  width:132px;border:none;background:transparent;outline:none;
  font-size:14px;color:var(--ink);
}
.nav-search input::placeholder{color:var(--ink-3);}

.nav-toggle{
  display:none;position:relative;width:44px;height:44px;
  border:1px solid var(--line-2);border-radius:var(--r-input);background:#fff;
}
.nav-toggle span{position:absolute;left:13px;top:21px;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:background var(--t);}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--t),top var(--t);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

/* ---------- 分类页顶部条带 ---------- */
.page-hero{
  background:linear-gradient(180deg,var(--primary-tint) 0%,var(--primary-ultra) 62%,#fff 100%);
  border-bottom:1px solid var(--line);
  padding:44px 0 48px;
}
.page-hero-inner{
  display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);
  gap:48px;align-items:center;
}
.breadcrumb{font-size:14px;color:var(--ink-3);margin-bottom:16px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li + li::before{content:"›";color:var(--ink-3);}
.breadcrumb a{color:var(--ink-2);text-decoration:none;}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;}
.breadcrumb .current{color:var(--ink-3);}

.page-hero h1{
  font-size:36px;line-height:1.32;font-weight:700;
  margin-bottom:16px;
}
.page-hero .lead{
  font-size:16px;line-height:1.85;color:var(--ink-2);
  max-width:640px;margin-bottom:22px;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 15px;border-radius:999px;
  background:#fff;border:1px solid var(--line-2);
  font-size:13px;color:var(--ink-2);text-decoration:none;font-weight:500;
  transition:border-color var(--t),color var(--t),box-shadow var(--t),transform var(--t);
}
.chip:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--sh-1);transform:translateY(-1px);}
.page-hero-media img{
  width:100%;aspect-ratio:4/3;border-radius:var(--r-card);
  box-shadow:var(--sh-2);border:1px solid #fff;
}

/* ---------- 区块通用 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-block;margin-bottom:12px;padding:4px 12px;
  border-radius:999px;background:var(--primary-tint);color:var(--primary);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:14px;}
.section-head p{font-size:16px;line-height:1.85;color:var(--ink-2);}

/* ---------- 故障卡片网格 ---------- */
.fault-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.fault-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.fault-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--line-2);}
.fault-card-wide{
  grid-column:span 2;
  background:linear-gradient(120deg,#fff 0%,var(--primary-ultra) 100%);
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:28px;align-items:center;
}
.fault-card h3{font-size:19px;margin-bottom:10px;}
.fault-card p{font-size:15px;line-height:1.85;color:var(--ink-2);}
.fault-icon{
  width:42px;height:42px;border-radius:12px;background:var(--primary-tint);
  color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.fault-list{margin-top:14px;display:grid;gap:8px;}
.fault-list li{
  position:relative;padding-left:16px;font-size:14px;color:var(--ink-2);line-height:1.8;
}
.fault-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--primary);}
.fault-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}

/* ---------- 对比表 ---------- */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.compare-table{width:100%;border-collapse:collapse;font-size:15px;}
.compare-table th{
  text-align:left;padding:16px 22px;background:var(--primary-ultra);
  border-bottom:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-2);
}
.compare-table td{
  padding:16px 22px;border-bottom:1px solid var(--line);
  color:var(--ink-2);line-height:1.75;vertical-align:top;font-size:14.5px;
}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table td:first-child{color:var(--ink);font-weight:600;}
.compare-table tbody tr:hover{background:var(--primary-ultra);}
.table-note{margin-top:16px;font-size:14px;color:var(--ink-3);}

/* ---------- 排查流程 ---------- */
.flow-list{display:grid;gap:18px;}
.flow-item{
  display:grid;grid-template-columns:64px minmax(0,1fr);
  gap:20px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:box-shadow var(--t),transform var(--t);
}
.flow-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.flow-index{
  width:56px;height:56px;border-radius:50%;
  border:2px solid var(--primary);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;
  background:var(--primary-ultra);
}
.flow-item h3{font-size:18px;margin-bottom:8px;}
.flow-item p{font-size:15px;line-height:1.85;color:var(--ink-2);}
.flow-tag{margin-top:12px;display:inline-flex;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;text-align:left;background:transparent;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color var(--t),background var(--t);
}
.faq-q:hover{color:var(--primary);background:var(--primary-ultra);}
.faq-q .arrow{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;
  color:var(--ink-2);transition:transform 220ms cubic-bezier(.2,.7,.3,1),border-color var(--t),color var(--t);
}
.faq-item.open .faq-q{color:var(--primary);}
.faq-item.open .faq-q .arrow{transform:rotate(180deg);border-color:var(--primary);color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms cubic-bezier(.2,.7,.3,1);}
.faq-a-inner{
  padding:0 26px 24px 26px;font-size:15px;line-height:1.9;color:var(--ink-2);
  border-left:3px solid transparent;
}
.faq-item.open .faq-a-inner{border-left-color:var(--primary);padding-left:23px;}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 88px;}
.cta-box{
  background:linear-gradient(120deg,var(--primary) 0%,#2E7BE0 100%);
  border-radius:18px;padding:48px;color:#fff;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:36px;align-items:center;box-shadow:0 18px 44px rgba(18,74,156,.22);
}
.cta-box h2{font-size:28px;color:#fff;margin-bottom:12px;}
.cta-box p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.88);}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-actions .btn-primary{background:#fff;color:var(--primary);box-shadow:0 6px 18px rgba(10,30,70,.18);}
.cta-actions .btn-primary:hover{background:#fff;color:var(--primary-dark);}
.cta-actions .btn-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.cta-actions .btn-secondary:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
.cta-hint{font-size:13px;color:rgba(255,255,255,.78);text-align:center;}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.related-link{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  text-decoration:none;color:var(--ink);font-weight:600;font-size:16px;
  box-shadow:var(--sh-1);
  transition:border-color var(--t),box-shadow var(--t),transform var(--t),color var(--t);
}
.related-link:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--sh-2);transform:translateY(-2px);}
.related-link span.arrow{color:var(--primary);font-size:18px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--ink-2);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--ink);}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--ink-2);text-decoration:none;}
.footer-col ul a:hover{color:var(--primary);text-decoration:underline;}
.footer-contact p{font-size:14px;color:var(--ink-2);line-height:1.85;margin-bottom:10px;}
.qr-box{
  margin-top:14px;width:118px;height:118px;border-radius:var(--r-img);
  border:1px dashed var(--line-2);background:#fff;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.7;color:var(--ink-3);padding:10px;
}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3);text-decoration:none;}
.footer-bottom a:hover{color:var(--primary);text-decoration:underline;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1120px;}
}

@media (max-width:1023px){
  .container{padding:0 20px;}
  .header-inner{gap:16px;}
  .nav-toggle{display:block;}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);padding:12px 20px 20px;
  }
  .nav-links.open{display:flex;}
  .nav-links a{font-size:16px;min-height:48px;padding:0 10px;}
  .nav-links a.active::after{left:10px;right:auto;width:22px;bottom:10px;}
  .nav-search{display:none;}
  .page-hero-inner{grid-template-columns:1fr;gap:32px;}
  .page-hero-media{order:-1;}
  .page-hero-media img{aspect-ratio:16/9;max-height:260px;}
  .page-hero h1{font-size:31px;}
  .section{padding:64px 0;}
  .section-head h2{font-size:26px;}
  .cta-box{grid-template-columns:1fr;padding:36px;}
  .cta-box h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .related-grid{grid-template-columns:1fr;}
}

@media (max-width:767px){
  .container{padding:0 16px;}
  .logo-text{font-size:15.5px;}
  .header-actions .btn-sm{padding:0 14px;font-size:13px;}
  .page-hero{padding:28px 0 36px;}
  .page-hero h1{font-size:27px;line-height:1.4;}
  .page-hero .lead{font-size:15px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:30px;}
  .section-head h2{font-size:22px;}
  .fault-grid{grid-template-columns:1fr;gap:16px;}
  .fault-card-wide{grid-column:span 1;grid-template-columns:1fr;gap:18px;}
  .fault-card{padding:20px;}
  .flow-item{grid-template-columns:1fr;gap:14px;padding:20px;}
  .flow-index{width:46px;height:46px;font-size:16px;}
  .faq-q{padding:18px 18px;font-size:16px;}
  .faq-a-inner{padding:0 18px 20px 18px;}
  .faq-item.open .faq-a-inner{padding-left:15px;}
  .cta-band{padding:0 0 48px;}
  .cta-box{padding:28px 22px;border-radius:16px;}
  .related-link{font-size:15px;padding:18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

@media (max-width:639px){
  .table-wrap{overflow:visible;border-radius:var(--r-card);}
  .compare-table{display:block;}
  .compare-table thead{display:none;}
  .compare-table tbody,.compare-table tr,.compare-table td{display:block;width:100%;}
  .compare-table tr{padding:16px 18px;border-bottom:1px solid var(--line);}
  .compare-table tr:last-child{border-bottom:none;}
  .compare-table td{border:none;padding:4px 0;}
  .compare-table td::before{
    content:attr(data-label);display:block;
    font-size:12px;color:var(--ink-3);margin-bottom:2px;
  }
  .compare-table td:first-child{font-size:16.5px;margin-bottom:6px;}
  .compare-table td:first-child::before{display:none;}
}

@media (max-width:479px){
  .page-hero h1{font-size:24px;}
  .header-actions .btn-sm{display:none;}
  .cta-actions .btn{width:100%;}
  .chip{font-size:12.5px;padding:6px 12px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category4 */
:root{
  --primary:#1A62C9;
  --primary-dark:#124A9C;
  --primary-50:#EAF2FD;
  --primary-25:#F5F8FD;
  --green:#12A67C;
  --amber:#ED9A2B;
  --ink:#101C2E;
  --text-2:#5A6B82;
  --text-3:#8697AB;
  --line:#E4EBF5;
  --line-2:#D3DEEE;
  --white:#FFFFFF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 2px 12px rgba(16,40,80,.06);
  --shadow-2:0 10px 28px rgba(16,40,80,.10);
  --shadow-3:0 2px 10px rgba(16,40,80,.05);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--white);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;}
a:hover{text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
h1,h2,h3,h4{font-weight:700;line-height:1.35;}

a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:6px;
}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 2px 8px rgba(26,98,201,.20);
}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;
  color:var(--primary);
  border-color:var(--line-2);
}
.btn-ghost:hover{
  border-color:var(--primary);
  background:var(--primary-50);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-3);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:70px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-weight:700;
  font-size:16px;
  flex-shrink:0;
}
.logo-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:var(--primary);
  color:#fff;
  font-size:16px;
  font-weight:700;
  line-height:1;
}
.logo-text{white-space:nowrap;}

.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:6px;
}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 12px;
  border-radius:8px;
  font-size:15px;
  color:var(--text-2);
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-links a:hover{color:var(--primary);background:var(--primary-50);}
.nav-links a.active{color:var(--primary);font-weight:600;}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}

.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 12px;
  border:1px solid var(--line-2);
  border-radius:var(--radius-btn);
  background:#fff;
  color:var(--text-3);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-50);
}
.nav-search input{
  width:132px;
  height:100%;
  border:0;
  outline:none;
  background:transparent;
  font-size:14px;
  color:var(--ink);
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search svg{flex-shrink:0;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line-2);
  border-radius:var(--radius-btn);
  background:#fff;
}
.nav-toggle span{
  position:relative;
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:background-color .18s var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .18s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ 页面顶部条带 ============ */
.page-hero{
  background:var(--primary-25);
  border-bottom:1px solid var(--line);
  padding:54px 0 58px;
}
.page-hero-inner{
  display:grid;
  grid-template-columns:1.4fr .6fr;
  gap:44px;
  align-items:center;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-3);
  margin-bottom:16px;
}
.breadcrumb a{color:var(--primary);}
.breadcrumb a:hover{text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--line-2);}
.breadcrumb .current{color:var(--text-3);}

.page-hero h1{
  font-size:36px;
  line-height:1.3;
  letter-spacing:0;
}
.page-hero .lead{
  margin-top:16px;
  font-size:17px;
  color:var(--text-2);
  max-width:640px;
}
.anchor-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.anchor-tags a{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 15px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line-2);
  font-size:13px;
  color:var(--text-2);
  transition:all .18s var(--ease);
}
.anchor-tags a:hover{
  border-color:var(--primary);
  color:var(--primary);
  background:var(--primary-50);
}
.page-hero-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--radius-img);
  box-shadow:var(--shadow-2);
}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--primary-25);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:30px;line-height:1.35;}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  margin-bottom:16px;
  border-radius:999px;
  background:var(--primary-50);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
}

/* ============ 要点卡片 ============ */
.point-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.point-card{
  display:flex;
  gap:18px;
  padding:26px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.point-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:var(--line-2);
}
.point-num{
  flex:0 0 auto;
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--primary-50);
  color:var(--primary);
  font-size:15px;
  font-weight:700;
}
.point-card h3{font-size:19px;margin-bottom:8px;}
.point-card p{font-size:14.5px;color:var(--text-2);line-height:1.85;}
.point-card.wide{grid-column:1 / -1;}

/* ============ 自查清单 ============ */
.check-layout{
  display:grid;
  grid-template-columns:1.45fr .55fr;
  gap:36px;
  align-items:start;
}
.check-list{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:12px 26px;
  box-shadow:var(--shadow-1);
}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  font-size:15.5px;
  color:var(--ink);
}
.check-list li:last-child{border-bottom:0;}
.check-list svg{flex:0 0 auto;margin-top:5px;color:var(--green);}

.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-1);
  position:sticky;
  top:96px;
}
.side-card h3{
  font-size:18px;
  margin-bottom:6px;
}
.side-card .side-note{
  font-size:13px;
  color:var(--text-3);
  margin-bottom:14px;
}
.side-card li{
  padding:14px 0;
  border-top:1px dashed var(--line);
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.8;
}
.side-card li:first-of-type{border-top:0;}
.side-card strong{color:var(--ink);font-weight:600;}

/* ============ 图墙 ============ */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.gallery-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.gallery-item:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.gallery-thumb{
  aspect-ratio:4/3;
  background:#EEF3FA;
  overflow:hidden;
}
.gallery-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .18s var(--ease);
}
.gallery-item:hover .gallery-thumb img{transform:scale(1.03);}
.gallery-item figcaption{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:16px 18px 18px;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.7;
}
.gallery-item figcaption .dot{
  flex:0 0 auto;
  width:20px;height:20px;
  margin-top:2px;
  display:grid;place-items:center;
  border-radius:999px;
  background:var(--primary-50);
  color:var(--primary);
  font-size:11px;
  font-weight:700;
}

/* ============ FAQ ============ */
.faq-list{
  max-width:900px;
  margin:0 auto;
  padding-left:14px;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 0;
  background:none;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-q svg{
  flex:0 0 auto;
  color:var(--text-3);
  transition:transform .22s var(--ease),color .18s var(--ease);
}
.faq-item.open .faq-q svg{transform:rotate(180deg);color:var(--primary);}
.faq-item.open .faq-q::before{
  content:"";
  position:absolute;
  left:-14px;
  top:22px;bottom:22px;
  width:3px;
  border-radius:2px;
  background:var(--primary);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  opacity:0;
  transition:max-height .22s var(--ease),opacity .22s var(--ease);
}
.faq-item.open .faq-a{opacity:1;}
.faq-a p{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  max-width:800px;
}

/* ============ CTA 条 ============ */
.cta-section{padding:0 0 88px;}
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  padding:40px 44px;
  background:var(--primary-50);
  border:1px solid #D6E4F8;
  border-radius:20px;
}
.cta-band h2{font-size:26px;line-height:1.35;}
.cta-band p{
  margin-top:10px;
  font-size:15px;
  color:var(--text-2);
  max-width:640px;
}
.cta-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}

.related-links{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px 28px;
  margin-top:28px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.related-links span{font-size:14px;color:var(--text-3);}
.related-links a{
  font-size:15px;
  font-weight:600;
  border-bottom:1px solid transparent;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.related-links a:hover{
  color:var(--primary-dark);
  border-bottom-color:var(--primary-dark);
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--primary-25);
  border-top:1px solid var(--line);
  padding-top:64px;
  margin-top:8px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
  max-width:330px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
  color:var(--ink);
}
.footer-col ul li{margin-bottom:12px;}
.footer-col a{
  font-size:14px;
  color:var(--text-2);
  transition:color .18s var(--ease);
}
.footer-col a:hover{color:var(--primary);}
.footer-contact p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.85;
  margin-bottom:10px;
}
.qr-box{
  margin-top:14px;
  width:126px;height:126px;
  display:grid;
  place-items:center;
  text-align:center;
  background:#fff;
  border:1px dashed var(--line-2);
  border-radius:var(--radius-img);
  font-size:12px;
  line-height:1.7;
  color:var(--text-3);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  padding:20px 0;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom a{
  color:var(--text-3);
  text-decoration:underline;
  text-underline-offset:3px;
}
.footer-bottom a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1140px;}
}

@media (max-width:1023px){
  .container{padding:0 20px;}
  .header-inner{flex-wrap:wrap;gap:14px;}
  .nav-toggle{display:inline-flex;}
  .nav-search{display:none;}
  .nav-links{
    display:none;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    margin:0;
    padding:10px 0 18px;
    border-top:1px solid var(--line);
  }
  .nav-links.open{display:flex;}
  .nav-links a{
    height:auto;
    padding:12px 6px;
    font-size:16px;
    border-radius:8px;
  }
  .nav-links a.active::after{display:none;}
  .nav-links a.active{background:var(--primary-50);}

  .page-hero{padding:44px 0 48px;}
  .page-hero-inner{grid-template-columns:1fr;gap:30px;}
  .page-hero h1{font-size:30px;}
  .page-hero-media img{aspect-ratio:16/9;}

  .section{padding:68px 0;}
  .section-head{margin-bottom:34px;}
  .section-head h2{font-size:26px;}

  .point-grid{grid-template-columns:1fr;}
  .point-card.wide{grid-column:auto;}
  .check-layout{grid-template-columns:1fr;gap:24px;}
  .side-card{position:static;}

  .gallery-grid{grid-template-columns:repeat(2,1fr);}

  .cta-section{padding:0 0 68px;}
  .cta-band{padding:32px 28px;}
  .cta-band h2{font-size:23px;}

  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}

@media (max-width:767px){
  .container{padding:0 16px;}
  .header-inner{min-height:64px;}
  .logo-text{font-size:15px;}
  .header-actions .btn-primary{display:none;}

  .page-hero{padding:34px 0 38px;}
  .page-hero h1{font-size:27px;}
  .page-hero .lead{font-size:16px;}
  .anchor-tags{gap:8px;margin-top:20px;}

  .section{padding:52px 0;}
  .section-head h2{font-size:22px;}
  .section-head p{font-size:15px;}

  .point-card{padding:20px;gap:14px;}
  .point-card h3{font-size:17px;}
  .check-list{padding:8px 18px;}

  .gallery-grid{grid-template-columns:1fr;}

  .faq-list{padding-left:12px;}
  .faq-q{font-size:16px;padding:18px 0;}
  .faq-item.open .faq-q::before{top:18px;bottom:18px;}

  .cta-band{padding:26px 20px;border-radius:16px;}
  .cta-band h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}

  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

@media (max-width:479px){
  .page-hero h1{font-size:24px;}
  .section-head h2{font-size:20px;}
  .btn{height:42px;padding:0 18px;font-size:14px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}