/* roulang page: index */
:root{
  --primary:#0E5A6B;
  --primary-dark:#0A4552;
  --primary-light:#E8F1F3;
  --accent:#F07C34;
  --accent-light:#FDEEE3;
  --accent-2:#C8A24A;
  --bg:#F5F7F8;
  --surface:#FFFFFF;
  --border:#E4EAEB;
  --ink:#16262C;
  --ink-muted:#5B6B71;
  --ink-invert:#F2F7F8;
  --success:#1F8A5B;
  --warn:#B4453A;
  --radius-card:14px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,42,50,.04),0 10px 24px -14px rgba(16,42,50,.14);
  --shadow-2:0 16px 32px -16px rgba(16,42,50,.22);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out}
a:hover{color:var(--primary-dark);text-decoration:underline}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid rgba(14,90,107,.35);outline-offset:2px;border-radius:6px}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:92px 0}
.section-alt{background:var(--surface)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;color:var(--primary);font-weight:700;letter-spacing:.06em;
}
.eyebrow::before{content:"";width:6px;height:16px;background:var(--accent);border-radius:2px;display:block}
.section-title{font-size:30px;line-height:1.3}
.section-lead{margin-top:12px;font-size:14px;color:var(--ink-muted);max-width:640px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;background:var(--primary-light);
  color:var(--primary);font-size:12.5px;font-weight:700;line-height:1.6;
}
.badge-gold{border:1px solid rgba(200,162,74,.5);color:#8a6c1f;background:#FBF6E9}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);border:1px solid transparent;
  background:var(--primary);color:#fff;font-weight:700;font-size:15px;cursor:pointer;
  box-shadow:var(--shadow-1);transition:background-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.btn-primary:hover{background:var(--primary-dark);color:#fff;text-decoration:none;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);border:1.5px solid var(--primary);
  background:var(--surface);color:var(--primary);font-weight:700;font-size:15px;cursor:pointer;
  transition:background-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none;box-shadow:var(--shadow-1);transform:translateY(-2px)}
.link-more{
  display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:700;font-size:14.5px;
}
.link-more span.arrow{display:inline-block;transition:transform .2s ease-out}
.link-more:hover span.arrow{transform:translateX(4px)}
.link-more:hover{color:var(--primary-dark);text-decoration:none}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#d7e2e4}
.media{position:relative;overflow:hidden;border-radius:var(--radius-card);background:var(--primary-light)}
.media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.channel{display:flex;align-items:center;gap:6px}
.channel a{
  position:relative;padding:9px 14px;border-radius:8px;font-size:15px;font-weight:600;color:var(--ink);
}
.channel a:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none}
.channel a.is-active{color:var(--primary)}
.channel a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--primary);border-radius:2px;
}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--primary);
  cursor:pointer;transition:background-color .2s ease-out,border-color .2s ease-out;
}
.icon-btn:hover{background:var(--primary-light);border-color:#cddde0}
.stat-band{background:var(--primary-dark);color:var(--ink-invert)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-cell{padding:34px 24px;border-right:1px solid rgba(242,247,248,.18)}
.stat-cell:last-child{border-right:0}
.stat-num{font-size:40px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;color:#fff}
.stat-num i{font-style:normal;font-size:18px;color:var(--accent-2);margin-left:4px}
.stat-label{margin-top:8px;font-size:13px;color:rgba(242,247,248,.78)}
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--primary-light),#cfe0e3)}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:absolute;left:-34px;top:2px;width:24px;height:24px;border-radius:50%;
  background:var(--surface);border:2px solid var(--primary);color:var(--primary);
  font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.tl-title{font-size:18px;font-weight:800}
.tl-text{margin-top:8px;font-size:14.5px;color:var(--ink-muted)}
.faq-item{border-bottom:1px solid var(--border);background:transparent}
.faq-item summary{
  list-style:none;display:flex;align-items:center;gap:14px;padding:20px 16px;cursor:pointer;
  font-size:16.5px;font-weight:700;color:var(--ink);border-radius:10px;transition:background-color .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(232,241,243,.6)}
.faq-num{color:var(--primary);font-variant-numeric:tabular-nums;font-size:14px;font-weight:800;letter-spacing:.04em}
.faq-item summary .chev{
  margin-left:auto;flex:none;width:18px;height:18px;border-right:2px solid var(--ink-muted);
  border-bottom:2px solid var(--ink-muted);transform:rotate(45deg);transition:transform .25s ease-out;
}
.faq-item[open]{background:rgba(232,241,243,.4);border-radius:12px}
.faq-item[open] summary .chev{transform:rotate(-135deg);border-color:var(--primary)}
.faq-body{padding:0 16px 22px 48px;font-size:15px;line-height:1.8;color:var(--ink-muted)}
.field{width:100%;height:46px;border:1px solid var(--border);border-radius:10px;background:var(--surface);padding:0 14px;font-size:15px;transition:border-color .2s ease-out,box-shadow .2s ease-out}
textarea.field{height:118px;padding:12px 14px;resize:vertical;line-height:1.7}
.field:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 4px rgba(14,90,107,.14)}
.field-label{display:block;font-size:13.5px;font-weight:700;color:var(--ink-muted);margin-bottom:8px}
.map-box{
  height:150px;border-radius:12px;background:#EDF1F2;border:1px dashed #cfd9db;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  color:var(--ink-muted);font-size:13px;
}
.news-card{display:flex;flex-direction:column;height:100%;overflow:hidden}
.news-card .media{border-radius:var(--radius-card) var(--radius-card) 0 0}
.news-card .media img{aspect-ratio:16/10;transition:transform .35s ease-out}
.news-card:hover .media img{transform:scale(1.04)}
.news-title{
  font-size:18px;font-weight:800;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-text{
  margin-top:10px;font-size:14px;color:var(--ink-muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-date{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-muted);font-variant-numeric:tabular-nums}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 24px;border:1px dashed #cfd9db;border-radius:var(--radius-card);
  background:var(--surface);color:var(--ink-muted);text-align:center;
}
.case-card{overflow:hidden}
.case-card .media{border-radius:var(--radius-card) var(--radius-card) 0 0}
.case-card .media img{aspect-ratio:16/10;transition:transform .35s ease-out}
.case-card:hover .media img{transform:scale(1.03)}
.footer-link{color:rgba(242,247,248,.78);font-size:14.5px;display:inline-block;padding:4px 0}
.footer-link:hover{color:#fff;text-decoration:none}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86%;max-width:380px;background:var(--surface);
  transform:translateX(102%);transition:transform .28s ease-out;z-index:60;
  display:flex;flex-direction:column;padding:22px;box-shadow:-20px 0 40px -24px rgba(16,42,50,.3);
}
.drawer.is-open{transform:translateX(0)}
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(10,40,48,.42);opacity:0;visibility:hidden;
  transition:opacity .25s ease-out,visibility .25s ease-out;z-index:55;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible}
.drawer-nav a{display:block;padding:14px 4px;border-bottom:1px solid var(--border);font-size:16px;font-weight:700}
.drawer-nav a:hover{color:var(--primary);text-decoration:none}
@media (max-width:1024px){
  .section{padding:68px 0}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-cell{border-bottom:1px solid rgba(242,247,248,.18)}
  .stat-cell:nth-child(2n){border-right:0}
  .stat-cell:nth-last-child(-n+2){border-bottom:0}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .container-x{padding:0 20px}
  .section{padding:58px 0}
  .section-title{font-size:22px}
  .stat-num{font-size:32px}
  .faq-body{padding-left:16px}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr}
  .stat-cell{border-right:0;border-bottom:1px solid rgba(242,247,248,.18)}
  .stat-cell:last-child{border-bottom:0}
}

/* roulang page: article */
:root{
  --primary:#0E5A6B;
  --primary-dark:#0A4552;
  --primary-light:#E8F1F3;
  --accent:#F07C34;
  --accent-light:#FDEEE3;
  --accent-2:#C8A24A;
  --bg:#F5F7F8;
  --surface:#FFFFFF;
  --border:#E4EAEB;
  --ink:#16262C;
  --ink-muted:#5B6B71;
  --ink-invert:#F2F7F8;
  --success:#1F8A5B;
  --warn:#B4453A;
  --r-card:14px;
  --r-panel:20px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,42,50,.04), 0 10px 24px -14px rgba(16,42,50,.14);
  --sh-2:0 16px 32px -16px rgba(16,42,50,.22);
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t)}
a:hover{color:var(--primary-dark);text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid rgba(14,90,107,.35);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.01em;line-height:1.25;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
.container-x{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.numeric{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  background:var(--surface);
  border-bottom:1px solid var(--border);
  position:relative;
  z-index:40;
}
.nav-inner{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{flex:0 0 auto}
.brand-text{
  font-size:17px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.channel{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto}
.channel a{
  position:relative;
  display:block;
  padding:8px 12px;
  border-radius:8px;
  font-size:14.5px;
  color:var(--ink-muted);
  white-space:nowrap;
}
.channel a:hover{
  background:var(--primary-light);
  color:var(--primary-dark);
  text-decoration:none;
}
.channel a.is-active{color:var(--primary);font-weight:700}
.channel a.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border);
  border-radius:var(--r-btn);
  background:var(--surface);
  color:var(--primary);
  transition:background var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.icon-btn:hover{background:var(--primary-light);border-color:var(--primary);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);
  color:#fff;
  border:1px solid var(--primary);
  border-radius:var(--r-btn);
  padding:10px 20px;
  font-size:14.5px;
  font-weight:700;
  transition:background var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;text-decoration:none;box-shadow:var(--sh-2);transform:translateY(-2px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--surface);
  color:var(--primary);
  border:1.5px solid var(--primary);
  border-radius:var(--r-btn);
  padding:10px 20px;
  font-size:14.5px;
  font-weight:700;
  transition:background var(--t),box-shadow var(--t),transform var(--t);
}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none;box-shadow:var(--sh-1);transform:translateY(-2px)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);
  font-size:14.5px;
  font-weight:700;
}
.text-link svg{transition:transform var(--t)}
.text-link:hover{color:var(--primary-dark)}
.text-link:hover svg{transform:translateX(4px)}
.hamburger{
  display:none;
  width:38px;height:38px;
  align-items:center;justify-content:center;
  border:1px solid var(--border);
  border-radius:var(--r-btn);
  background:var(--surface);
  color:var(--primary);
}
/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,30,36,.42);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
  z-index:60;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:min(88vw,360px);
  background:var(--surface);
  box-shadow:-20px 0 40px -24px rgba(16,42,50,.4);
  transform:translateX(100%);
  transition:transform 260ms ease-out;
  z-index:70;
  padding:20px 22px 32px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:var(--r-btn);background:var(--surface);color:var(--ink-muted);
}
.drawer-close:hover{color:var(--primary);border-color:var(--primary)}
.drawer-links{display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--border);padding-top:14px}
.drawer-links a{
  padding:12px 14px;border-radius:10px;font-size:15.5px;color:var(--ink);font-weight:600;
}
.drawer-links a:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none}
.drawer-links a.is-active{color:var(--primary);background:var(--primary-light)}
.drawer-search{display:flex;gap:8px}
.drawer-search input{
  flex:1;height:46px;border:1px solid var(--border);border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;background:var(--surface);color:var(--ink);
}
.drawer-search input:focus{border-color:var(--primary);outline:2px solid rgba(14,90,107,.2);outline-offset:0}

/* ---------- breadcrumb ---------- */
.crumb-wrap{background:var(--surface);border-bottom:1px solid var(--border)}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:14px 0;font-size:13px;color:var(--ink-muted);
}
.crumb a{color:var(--ink-muted)}
.crumb a:hover{color:var(--primary-dark)}
.crumb-sep{color:#B9C6C9}
.crumb-now{color:var(--ink);font-weight:600;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article ---------- */
.article-hero{background:var(--surface);padding:44px 0 8px}
.article-head{max-width:820px;margin:0 auto;text-align:center}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--primary-light);color:var(--primary);
  border:1px solid rgba(14,90,107,.16);
  border-radius:999px;padding:4px 14px;
  font-size:13px;font-weight:700;
}
.badge-accent{background:var(--accent-light);color:#B2521A;border-color:rgba(240,124,52,.24)}
.article-head h1{
  font-size:34px;
  line-height:1.34;
  margin:18px 0 0;
  color:var(--ink);
}
.article-meta{
  display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;
  margin-top:20px;font-size:13px;color:var(--ink-muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6D2D5}
.meta-item{display:inline-flex;align-items:center;gap:6px}

.article-figure{
  max-width:960px;margin:32px auto 0;
  border-radius:var(--r-panel);overflow:hidden;
  box-shadow:var(--sh-1);
  aspect-ratio:16/8;
  background:var(--primary-light);
}
.article-figure img{width:100%;height:100%;object-fit:cover}

.article-body{padding:56px 0 0}
.prose-cn{
  max-width:760px;margin:0 auto;
  font-size:16px;line-height:1.9;color:#243439;
}
.prose-cn p{margin:0 0 1.2em}
.prose-cn h2{
  position:relative;
  font-size:25px;
  margin:2.1em 0 .9em;
  padding-left:16px;
  color:var(--ink);
}
.prose-cn h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:3px;background:var(--primary);
}
.prose-cn h3{font-size:19px;margin:1.7em 0 .7em;color:var(--ink);font-weight:800}
.prose-cn h4{font-size:17px;margin:1.4em 0 .6em;color:var(--ink)}
.prose-cn ul,.prose-cn ol{margin:0 0 1.3em;padding-left:1.35em}
.prose-cn ul{list-style:disc}
.prose-cn ol{list-style:decimal}
.prose-cn li{margin:.4em 0}
.prose-cn a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.prose-cn a:hover{color:var(--primary-dark)}
.prose-cn img{border-radius:12px;margin:1.6em auto;box-shadow:var(--sh-1)}
.prose-cn figure{margin:1.8em 0}
.prose-cn figcaption{
  text-align:center;font-size:13px;color:var(--ink-muted);margin-top:10px;
}
.prose-cn blockquote{
  margin:1.7em 0;padding:18px 22px;
  border-left:3px solid var(--accent);
  background:var(--accent-light);
  border-radius:0 12px 12px 0;
  color:#5A3A1F;
  font-size:15.5px;
}
.prose-cn blockquote p:last-child{margin-bottom:0}
.prose-cn table{
  width:100%;border-collapse:collapse;margin:1.8em 0;font-size:14.5px;
  border:1px solid var(--border);border-radius:12px;overflow:hidden;
}
.prose-cn thead{background:var(--primary-light)}
.prose-cn th{
  text-align:left;padding:12px 14px;font-weight:700;color:var(--primary-dark);
  border-bottom:1px solid var(--border);
}
.prose-cn td{padding:11px 14px;border-bottom:1px solid var(--border)}
.prose-cn tbody tr:nth-child(even){background:#F8FAFB}
.prose-cn tbody tr:last-child td{border-bottom:none}
.prose-cn hr{border:none;border-top:1px solid var(--border);margin:2.2em 0}
.prose-cn strong{font-weight:700;color:var(--ink)}

.back-row{
  max-width:760px;margin:36px auto 0;
}
.back-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:700;color:var(--primary);
  border:1.5px solid var(--primary);border-radius:var(--r-btn);
  padding:9px 18px;background:var(--surface);
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.back-link:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none;transform:translateY(-2px);box-shadow:var(--sh-1)}
.back-link svg{transition:transform var(--t)}
.back-link:hover svg{transform:translateX(-4px)}

/* ---------- empty state ---------- */
.empty-state{
  max-width:760px;margin:48px auto 0;
  background:var(--surface);
  border:1px dashed var(--border);
  border-radius:var(--r-panel);
  padding:56px 28px;
  text-align:center;
}
.empty-state .empty-ico{
  width:64px;height:64px;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;background:var(--primary-light);color:var(--primary);
}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--ink-muted);font-size:15px;margin-bottom:22px}

/* ---------- related ---------- */
.section-pad{padding:88px 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:30px;color:var(--ink)}
.section-head .lead{font-size:14px;color:var(--ink-muted);margin-top:10px}
.head-between{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;max-width:none}

.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D5E0E2}
.card-media{
  aspect-ratio:16/10;overflow:hidden;background:var(--primary-light);
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:18px;line-height:1.45;font-weight:800;color:var(--ink)}
.card-title a{display:block}
.card-title a:hover{color:var(--primary-dark);text-decoration:none}
.card-desc{font-size:14px;color:var(--ink-muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-muted)}
.card-foot .meta-item svg{color:var(--primary)}

/* ---------- pager ---------- */
.pager{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
}
.pager-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  display:flex;flex-direction:column;gap:8px;
}
.pager-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D5E0E2;text-decoration:none}
.pager-item .pager-label{font-size:13px;color:var(--ink-muted);display:inline-flex;align-items:center;gap:6px}
.pager-item .pager-title{font-size:16px;font-weight:700;color:var(--ink);line-height:1.5}
.pager-item:hover .pager-title{color:var(--primary-dark)}
.pager-item.next{text-align:right;align-items:flex-end}

/* ---------- footer ---------- */
.footer-link{
  display:block;font-size:14.5px;color:rgba(242,247,248,.78);
  padding:5px 0;transition:color var(--t),transform var(--t);
}
.footer-link:hover{color:#fff;text-decoration:none;transform:translateX(3px)}
footer h3{margin:0;font-size:15px;font-weight:700;color:#fff;letter-spacing:.01em}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .channel{display:none}
  .hamburger{display:inline-flex}
  .nav-right .btn-primary{display:none}
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-head h1{font-size:29px}
  .section-pad{padding:72px 0}
}
@media (max-width:767px){
  .container-x{padding-left:20px;padding-right:20px}
  .nav-inner{height:56px}
  .brand-text{font-size:15.5px}
  .article-hero{padding:30px 0 4px}
  .article-head h1{font-size:25px}
  .article-figure{aspect-ratio:16/10;margin-top:24px;border-radius:16px}
  .article-body{padding:36px 0 0}
  .prose-cn{font-size:16px;line-height:1.88}
  .prose-cn h2{font-size:21px}
  .prose-cn h3{font-size:17.5px}
  .section-pad{padding:56px 0}
  .section-head h2{font-size:22px}
  .grid-cards{grid-template-columns:1fr;gap:18px}
  .pager{grid-template-columns:1fr}
  .pager-item.next{text-align:left;align-items:flex-start}
}
@media (max-width:520px){
  .article-meta{gap:10px;font-size:12.5px}
  .crumb-now{max-width:100%;white-space:normal}
  .btn-primary,.btn-ghost{padding:10px 16px;font-size:14px}
}

/* roulang page: category1 */
:root{
    --primary:#0E5A6B;
    --primary-dark:#0A4552;
    --primary-light:#E8F1F3;
    --accent:#F07C34;
    --accent-light:#FDEEE3;
    --accent-2:#C8A24A;
    --bg:#F5F7F8;
    --surface:#FFFFFF;
    --border:#E4EAEB;
    --ink:#16262C;
    --ink-muted:#5B6B71;
    --ink-invert:#F2F7F8;
    --success:#1F8A5B;
    --warn:#B4453A;
    --radius-card:14px;
    --radius-panel:20px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(16,42,50,.04),0 10px 24px -14px rgba(16,42,50,.14);
    --shadow-2:0 16px 32px -16px rgba(16,42,50,.22);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25;color:var(--ink)}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none;transition:color .18s ease-out}
  a:hover{color:var(--primary-dark)}
  button{font-family:inherit}
  :focus-visible{outline:2px solid rgba(14,90,107,.45);outline-offset:2px;border-radius:6px}

  .container-x{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
  @media (min-width:1024px){.container-x{padding-left:24px;padding-right:24px}}

  .section{padding-top:64px;padding-bottom:64px}
  @media (min-width:1024px){.section{padding-top:92px;padding-bottom:92px}}
  .band-surface{background:var(--surface)}
  .band-bg{background:var(--bg)}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;color:var(--primary);
    letter-spacing:.04em;
  }
  .eyebrow::before{content:"";width:6px;height:18px;border-radius:3px;background:var(--accent)}
  .section-title{font-size:22px}
  @media (min-width:1024px){.section-title{font-size:30px}}
  .section-sub{margin-top:12px;font-size:14px;color:var(--ink-muted);max-width:640px}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 13px;border-radius:999px;
    background:var(--primary-light);color:var(--primary);
    font-size:13px;font-weight:700;line-height:1.5;
  }
  .badge-accent{background:var(--accent-light);color:#B4551B}
  .badge-outline{background:transparent;border:1px solid var(--accent-2);color:#8A6C1F}

  .btn-primary,.btn-ghost,.btn-text{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:15px;font-weight:700;line-height:1;
    border-radius:var(--radius-btn);
    cursor:pointer;border:0;
    transition:background-color .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
  }
  .btn-primary{padding:14px 26px;background:var(--primary);color:#fff;box-shadow:var(--shadow-1)}
  .btn-primary:hover{background:var(--primary-dark);color:#fff;box-shadow:var(--shadow-2);transform:translateY(-2px)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{padding:12.5px 24px;background:#fff;color:var(--primary);border:1.5px solid var(--primary)}
  .btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark)}
  .btn-text{padding:6px 0;background:none;color:var(--primary);font-weight:700}
  .btn-text svg{transition:transform .2s ease-out}
  .btn-text:hover{color:var(--primary-dark);text-decoration:underline}
  .btn-text:hover svg{transform:translateX(4px)}
  .btn-sm{padding:10px 18px;font-size:14px}

  .card{
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);
    transition:box-shadow .2s ease-out,transform .2s ease-out;
  }
  .card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}

  /* Header */
  .site-header{background:var(--surface);border-bottom:1px solid var(--border);position:relative;z-index:60}
  .header-inner{display:flex;align-items:center;justify-content:space-between;height:56px}
  @media (min-width:1024px){.header-inner{height:64px}}
  .brand{display:flex;align-items:center;gap:28px;min-width:0}
  .brand-mark{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .brand-text{font-size:16.5px;font-weight:800;color:var(--ink);white-space:nowrap}
  .channel{display:flex;align-items:center;gap:4px}
  .channel a{
    position:relative;display:inline-block;
    padding:9px 12px;border-radius:8px;
    font-size:14.5px;font-weight:600;color:var(--ink-muted);
    transition:background-color .18s ease-out,color .18s ease-out;
  }
  .channel a:hover{background:var(--primary-light);color:var(--primary-dark)}
  .channel a.is-active{color:var(--primary);font-weight:700}
  .channel a.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
    border-radius:2px;background:var(--primary);
  }
  .header-actions{display:flex;align-items:center;gap:10px}
  .icon-btn{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:10px;
    background:transparent;border:1px solid var(--border);color:var(--ink-muted);
    cursor:pointer;transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  }
  .icon-btn:hover{background:var(--primary-light);color:var(--primary);border-color:var(--primary-light)}
  .nav-toggle{display:inline-flex}
  @media (min-width:1024px){.nav-toggle{display:none}}

  .drawer-mask{
    position:fixed;inset:0;background:rgba(10,37,45,.42);
    opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s ease-out;z-index:80;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible}
  .drawer{
    position:fixed;top:0;right:0;height:100%;width:min(360px,88vw);
    background:var(--surface);z-index:90;
    transform:translateX(102%);transition:transform .28s ease-out;
    display:flex;flex-direction:column;padding:20px;
    box-shadow:-18px 0 40px -24px rgba(16,42,50,.4);
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
  .drawer-link{
    display:block;padding:13px 12px;border-radius:10px;
    font-size:15.5px;font-weight:600;color:var(--ink);
    border-bottom:1px solid var(--border);
  }
  .drawer-link:hover{background:var(--primary-light);color:var(--primary-dark)}
  .drawer-link.is-active{color:var(--primary);background:var(--primary-light)}

  /* Breadcrumb */
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-muted)}
  .crumb a{color:var(--ink-muted)}
  .crumb a:hover{color:var(--primary-dark);text-decoration:underline}
  .crumb .sep{color:#B7C2C6}
  .crumb .current{color:var(--ink);font-weight:600}

  /* Hero */
  .cat-hero{background:var(--surface);border-bottom:1px solid var(--border);padding-top:28px;padding-bottom:56px}
  @media (min-width:1024px){.cat-hero{padding-top:36px;padding-bottom:84px}}
  .cat-hero h1{font-size:28px;margin-top:18px}
  @media (min-width:1024px){.cat-hero h1{font-size:44px}}
  .cat-hero .lede{margin-top:18px;font-size:16.5px;color:var(--ink-muted);max-width:640px;line-height:1.85}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .hero-media{
    position:relative;border-radius:var(--radius-panel);overflow:hidden;
    box-shadow:var(--shadow-1);aspect-ratio:16/11;background:var(--primary-light);
  }
  .hero-media img{width:100%;height:100%;object-fit:cover}
  .hero-float{
    position:absolute;left:18px;bottom:18px;
    background:#fff;border-radius:12px;padding:14px 18px;
    box-shadow:var(--shadow-1);display:flex;align-items:center;gap:14px;
  }
  .hero-float .num{font-size:26px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1}
  .hero-float .lbl{font-size:12.5px;color:var(--ink-muted);line-height:1.5}
  @media (max-width:640px){.hero-media{aspect-ratio:16/12;max-height:320px}}

  /* Key point cards */
  .point-card{padding:26px;border-radius:var(--radius-card)}
  .point-icon{
    display:inline-flex;align-items:center;justify-content:center;
    width:46px;height:46px;border-radius:12px;
    background:var(--primary-light);color:var(--primary);margin-bottom:18px;
  }
  .point-card h3{font-size:18px}
  .point-card p{margin-top:12px;font-size:14.5px;color:var(--ink-muted)}

  /* Split content */
  .split{display:grid;gap:32px;align-items:center}
  @media (min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:56px}}
  .split-media{border-radius:var(--radius-panel);overflow:hidden;box-shadow:var(--shadow-1);aspect-ratio:16/11;background:var(--primary-light)}
  .split-media img{width:100%;height:100%;object-fit:cover}
  .split h2{font-size:22px}
  @media (min-width:1024px){.split h2{font-size:28px}}
  .split p{margin-top:14px;font-size:15.5px;color:var(--ink-muted);line-height:1.85}
  .check-list{margin-top:20px;display:grid;gap:10px}
  .check-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink)}
  .check-list li svg{flex-shrink:0;margin-top:6px;color:var(--success)}

  /* Process */
  .process{counter-reset:step;display:grid;gap:0}
  .process li{
    position:relative;display:flex;gap:18px;
    padding:0 0 26px 0;
  }
  .process li:last-child{padding-bottom:0}
  .process .idx{
    position:relative;flex-shrink:0;
    width:42px;height:42px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:var(--primary-light);color:var(--primary);
    font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
  }
  .process li:not(:last-child)::before{
    content:"";position:absolute;left:20px;top:46px;bottom:2px;width:1.5px;background:var(--border);
  }
  .process h3{font-size:17px}
  .process p{margin-top:8px;font-size:14.5px;color:var(--ink-muted)}

  .scenario-list{display:grid;gap:14px}
  @media (min-width:768px){.scenario-list{grid-template-columns:1fr 1fr}}
  .scenario-list li{
    display:flex;gap:14px;padding:20px 22px;
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);
  }
  .scenario-list .dot{
    flex-shrink:0;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:11px;
  }
  .scenario-list b{display:block;font-size:15.5px}
  .scenario-list span{display:block;margin-top:6px;font-size:14px;color:var(--ink-muted)}

  /* FAQ */
  .faq{border-top:1px solid var(--border)}
  .faq-item{border-bottom:1px solid var(--border);transition:background-color .2s ease-out}
  .faq-item.is-open{background:rgba(232,241,243,.4)}
  .faq-q{
    width:100%;display:flex;align-items:center;gap:16px;
    padding:22px 16px;background:none;border:0;cursor:pointer;text-align:left;
  }
  .faq-num{font-size:14px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;flex-shrink:0}
  .faq-text{flex:1;font-size:16.5px;font-weight:700;color:var(--ink)}
  .faq-arrow{flex-shrink:0;color:var(--ink-muted);transition:transform .25s ease-out}
  .faq-item.is-open .faq-arrow{transform:rotate(180deg);color:var(--primary)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
  .faq-item.is-open .faq-a{max-height:460px}
  .faq-a p{padding:0 16px 24px 46px;font-size:15px;line-height:1.8;color:var(--ink-muted)}

  /* CTA band */
  .cta-band{background:var(--primary-dark);color:var(--ink-invert);border-radius:var(--radius-panel);padding:36px 28px}
  @media (min-width:1024px){.cta-band{padding:52px 56px}}
  .cta-band h2{color:#fff;font-size:22px}
  @media (min-width:1024px){.cta-band h2{font-size:30px}}
  .cta-band p{margin-top:14px;font-size:15px;color:rgba(242,247,248,.78);max-width:620px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .btn-on-dark{background:var(--accent);color:#fff}
  .btn-on-dark:hover{background:#d9691f;color:#fff}

  /* Footer */
  .footer-link{display:inline-block;font-size:14.5px;color:rgba(242,247,248,.78);padding:4px 0}
  .footer-link:hover{color:#fff;text-decoration:underline}

  @media (max-width:520px){
    .cat-hero h1{font-size:26px}
    .brand-text{font-size:15px}
    .hero-cta .btn-primary,.hero-cta .btn-ghost{width:100%}
  }

/* roulang page: category2 */
:root{
    --primary:#0E5A6B;
    --primary-dark:#0A4552;
    --primary-light:#E8F1F3;
    --accent:#F07C34;
    --accent-light:#FDEEE3;
    --accent-2:#C8A24A;
    --bg:#F5F7F8;
    --surface:#FFFFFF;
    --border:#E4EAEB;
    --ink:#16262C;
    --ink-muted:#5B6B71;
    --ink-invert:#F2F7F8;
    --success:#1F8A5B;
    --warn:#B4453A;
    --r-card:14px;
    --r-panel:20px;
    --r-btn:10px;
    --sh-1:0 1px 2px rgba(16,42,50,.04),0 10px 24px -14px rgba(16,42,50,.14);
    --sh-2:0 16px 32px -16px rgba(16,42,50,.22);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    letter-spacing:0;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
  a:hover{color:var(--primary-dark)}
  button{font-family:inherit;cursor:pointer}
  h1,h2,h3,h4{letter-spacing:-.01em;line-height:1.25;font-weight:800;color:var(--ink);margin:0}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid rgba(14,90,107,.55);outline-offset:2px;border-radius:6px}

  .container-x{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%}
  .num{font-variant-numeric:tabular-nums}

  /* ---------- header ---------- */
  .site-header{
    background:var(--surface);
    border-bottom:1px solid var(--border);
    position:relative;
    z-index:40;
  }
  .header-inner{
    height:64px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
  }
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-text{
    font-size:16.5px;font-weight:800;color:var(--primary-dark);letter-spacing:-.01em;white-space:nowrap;
  }
  .channel{align-items:center;gap:2px;flex:1 1 auto;justify-content:flex-start}
  .channel a{
    position:relative;
    display:inline-block;
    padding:7px 12px;
    font-size:15px;
    font-weight:600;
    color:var(--ink-muted);
    border-radius:8px;
    white-space:nowrap;
  }
  .channel a:hover{background:var(--primary-light);color:var(--primary-dark)}
  .channel a.is-active{color:var(--primary)}
  .channel a.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;background:var(--primary);border-radius:2px;
  }
  .header-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .icon-btn{
    width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--primary);
    transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
  }
  .icon-btn:hover{background:var(--primary-light);border-color:var(--primary-light)}
  .menu-btn{display:none}

  /* ---------- buttons ---------- */
  .btn-primary,.btn-ghost,.btn-text{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-weight:700;font-size:15px;border-radius:var(--r-btn);
    transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--primary);color:#fff;border:1px solid var(--primary);
    padding:12px 22px;box-shadow:var(--sh-1);
  }
  .btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;box-shadow:var(--sh-2);transform:translateY(-2px)}
  .btn-ghost{
    background:var(--surface);color:var(--primary);border:1.5px solid var(--primary);
    padding:11px 20px;
  }
  .btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px)}
  .btn-text{
    background:none;border:none;padding:0;color:var(--primary);font-weight:700;font-size:15px;
  }
  .btn-text svg{transition:transform .2s ease}
  .btn-text:hover{color:var(--primary-dark);text-decoration:underline}
  .btn-text:hover svg{transform:translateX(4px)}
  .header-cta{padding:9px 16px;font-size:14.5px}

  /* ---------- shared blocks ---------- */
  .sec{padding-top:88px;padding-bottom:88px}
  .sec-sm{padding-top:64px;padding-bottom:64px}
  .sec-white{background:var(--surface)}
  .sec-bg{background:var(--bg)}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;color:var(--primary);
    letter-spacing:.06em;
  }
  .eyebrow::before{content:"";width:6px;height:16px;background:var(--accent);border-radius:2px;display:inline-block}
  .h2{font-size:30px;font-weight:800}
  .h3{font-size:19px;font-weight:800}
  .sub{font-size:14px;color:var(--ink-muted);margin-top:10px;max-width:62ch}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    background:var(--primary-light);color:var(--primary);
    font-size:13px;font-weight:700;border-radius:999px;padding:5px 12px;
    border:1px solid rgba(14,90,107,.12);
  }
  .badge-accent{background:var(--accent-light);color:#B9551A;border-color:rgba(240,124,52,.22)}
  .card{
    background:var(--surface);
    border:1px solid var(--border);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  }
  .card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
  .crumb{font-size:13px;color:var(--ink-muted)}
  .crumb a{color:var(--ink-muted)}
  .crumb a:hover{color:var(--primary-dark)}
  .crumb span.sep{margin:0 8px;color:#AEBABE}
  .divider{height:1px;background:var(--border);border:0;margin:0}

  /* ---------- hero banner ---------- */
  .crumb-bar{background:var(--surface);border-bottom:1px solid var(--border);padding:12px 0}
  .hero-banner{padding-top:28px;padding-bottom:0;background:var(--surface)}
  .banner-media{
    position:relative;border-radius:var(--r-panel);overflow:hidden;box-shadow:var(--sh-1);
    aspect-ratio:16/7;min-height:280px;
  }
  .banner-media img{width:100%;height:100%;object-fit:cover}
  .banner-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(10,69,82,.9) 0%,rgba(10,69,82,.72) 42%,rgba(10,69,82,.18) 78%);
  }
  .banner-copy{
    position:absolute;inset:0;z-index:2;
    display:flex;flex-direction:column;justify-content:center;
    padding:40px 48px;max-width:760px;
  }
  .banner-copy .badge{background:rgba(242,247,248,.16);color:#fff;border-color:rgba(242,247,248,.28)}
  .banner-copy h1{
    font-size:42px;color:#fff;margin-top:16px;letter-spacing:-.02em;
  }
  .banner-copy p{
    color:rgba(242,247,248,.86);font-size:17px;line-height:1.85;margin-top:16px;max-width:60ch;
  }
  .banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .banner-actions .btn-ghost{background:rgba(255,255,255,.92);border-color:transparent}
  .banner-actions .btn-ghost:hover{background:#fff;color:var(--primary-dark)}

  /* ---------- quick facts ---------- */
  .fact{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
    padding:22px 20px;box-shadow:var(--sh-1);height:100%;
    transition:box-shadow .2s ease,transform .2s ease;
  }
  .fact:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
  .fact .fact-head{display:flex;align-items:center;gap:10px}
  .fact h3{font-size:17px;font-weight:800}
  .fact p{font-size:14.5px;color:var(--ink-muted);margin-top:10px;line-height:1.8}
  .fact-icon{
    width:36px;height:36px;border-radius:10px;background:var(--primary-light);
    display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  }

  /* ---------- split content ---------- */
  .split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
  .split-media{border-radius:var(--r-panel);overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:16/11}
  .split-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
  .split:hover .split-media img{transform:scale(1.03)}
  .split-body h2{font-size:26px}
  .split-body p{font-size:15.5px;color:var(--ink-muted);margin-top:14px}
  .check-list{margin-top:20px;display:grid;gap:12px}
  .check-list li{display:flex;gap:10px;font-size:15px;color:var(--ink)}
  .check-list li svg{flex:0 0 auto;margin-top:6px}

  /* ---------- steps ---------- */
  .step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .step{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
    padding:24px 20px;box-shadow:var(--sh-1);position:relative;
    transition:box-shadow .2s ease,transform .2s ease;
  }
  .step:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
  .step-no{
    font-size:26px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  }
  .step h3{font-size:17px;margin-top:8px}
  .step p{font-size:14.5px;color:var(--ink-muted);margin-top:8px}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:880px;margin:0 auto}
  .faq-item{border-bottom:1px solid var(--border)}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
    padding:20px 8px;font-size:17px;font-weight:700;color:var(--ink);
    transition:background-color .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{background:rgba(232,241,243,.6);border-radius:8px}
  .faq-no{color:var(--primary);font-weight:800;font-variant-numeric:tabular-nums;flex:0 0 auto}
  .faq-chev{margin-left:auto;flex:0 0 auto;transition:transform .25s ease;color:var(--primary);margin-top:4px}
  .faq-item[open] .faq-chev{transform:rotate(180deg)}
  .faq-item[open]{background:rgba(232,241,243,.4);border-radius:10px}
  .faq-answer{padding:0 8px 22px 40px;font-size:15px;line-height:1.85;color:var(--ink-muted)}

  /* ---------- CTA band ---------- */
  .cta-band{
    background:var(--primary-dark);color:var(--ink-invert);
    border-radius:var(--r-panel);padding:44px 48px;
    display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
    box-shadow:var(--sh-1);
  }
  .cta-band h2{color:#fff;font-size:26px}
  .cta-band p{color:rgba(242,247,248,.78);font-size:15px;margin-top:10px;max-width:56ch}
  .cta-band .btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
  .cta-band .btn-primary:hover{background:#D96B26;border-color:#D96B26}

  /* ---------- footer ---------- */
  .footer-link{
    display:inline-block;font-size:14.5px;color:rgba(242,247,248,.78);padding:4px 0;
  }
  .footer-link:hover{color:#fff;text-decoration:underline}
  footer h3{font-weight:700;letter-spacing:0}

  /* ---------- drawer ---------- */
  .drawer-mask{
    position:fixed;inset:0;background:rgba(16,38,44,.45);z-index:55;
    opacity:0;pointer-events:none;transition:opacity .25s ease;
  }
  .drawer-mask.open{opacity:1;pointer-events:auto}
  .drawer{
    position:fixed;top:0;right:0;height:100%;width:min(88vw,352px);
    background:var(--surface);z-index:60;padding:20px;
    transform:translateX(102%);transition:transform .28s ease;
    overflow-y:auto;box-shadow:-12px 0 32px -18px rgba(16,42,50,.35);
  }
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
  .drawer-nav{display:grid;gap:4px;margin-top:22px}
  .drawer-nav a{
    padding:12px 14px;border-radius:10px;font-size:15.5px;font-weight:600;color:var(--ink-muted);
  }
  .drawer-nav a:hover{background:var(--primary-light);color:var(--primary-dark)}
  .drawer-nav a.is-active{color:var(--primary);background:var(--primary-light)}
  .drawer-search{display:flex;gap:8px;margin-top:18px}
  .drawer-search input{
    flex:1;height:46px;border:1px solid var(--border);border-radius:10px;padding:0 14px;font-size:15px;color:var(--ink);
    background:var(--bg);
  }
  .drawer-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(14,90,107,.12)}
  .drawer-cta{margin-top:22px;width:100%}

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    .channel{display:none}
    .menu-btn{display:inline-flex}
    .header-cta{display:none}
    .banner-copy{padding:32px 30px;max-width:100%}
    .banner-copy h1{font-size:32px}
    .banner-media{aspect-ratio:16/10}
    .split{gap:32px}
    .step-grid{grid-template-columns:repeat(2,1fr)}
    .sec{padding-top:64px;padding-bottom:64px}
  }
  @media (max-width:768px){
    .header-inner{height:56px}
    .banner-copy h1{font-size:28px}
    .banner-copy p{font-size:15.5px}
    .split{grid-template-columns:1fr;gap:24px}
    .split.reverse .split-media{order:-1}
    .h2{font-size:23px}
    .split-body h2{font-size:21px}
    .cta-band{padding:32px 24px}
    .cta-band h2{font-size:22px}
  }
  @media (max-width:640px){
    .container-x{padding-left:20px;padding-right:20px}
    .brand-text{font-size:15px}
    .banner-media{aspect-ratio:4/3;min-height:280px}
    .banner-copy{padding:26px 22px}
    .banner-media img{min-height:280px}
    .step-grid{grid-template-columns:1fr}
    .sec{padding-top:56px;padding-bottom:56px}
    .faq-item summary{font-size:16px;padding:18px 6px}
    .faq-answer{padding-left:34px}
  }

/* roulang page: category3 */
:root{
  --primary:#0E5A6B;
  --primary-dark:#0A4552;
  --primary-light:#E8F1F3;
  --accent:#F07C34;
  --accent-light:#FDEEE3;
  --accent-2:#C8A24A;
  --bg:#F5F7F8;
  --surface:#FFFFFF;
  --border:#E4EAEB;
  --ink:#16262C;
  --ink-muted:#5B6B71;
  --ink-invert:#F2F7F8;
  --success:#1F8A5B;
  --warn:#B4453A;
  --radius-card:14px;
  --radius-panel:20px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,42,50,.04),0 10px 24px -14px rgba(16,42,50,.14);
  --shadow-2:0 16px 32px -16px rgba(16,42,50,.22);
}

html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body a{color:var(--primary);text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out}
body a:hover{color:var(--primary-dark);text-decoration:underline}
body img{display:block;max-width:100%;height:auto}
body input,body select,body textarea,body button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em}
h1{font-size:38px}
h2{font-size:29px}
h3{font-size:19px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
em{font-style:normal}
:focus-visible{outline:2px solid rgba(14,90,107,.45);outline-offset:2px;border-radius:6px}

.container-x{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.bg-surface{background:var(--surface)}
.bg-plain{background:var(--bg)}

.sec-head{margin-bottom:36px}
.sec-head p{margin-top:10px;font-size:14px;color:var(--ink-muted);max-width:720px}
.sec-title{position:relative;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:6px;border-radius:3px;background:var(--primary)}
.sec-title.alt::before{background:var(--accent)}

/* ---------- header ---------- */
.site-header{background:var(--surface);border-bottom:1px solid var(--border);position:relative;z-index:60}
.header-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.header-left{display:flex;align-items:center;gap:30px;min-width:0}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-text em{color:var(--primary)}
.channel{gap:4px;align-items:center}
.channel a{position:relative;padding:8px 12px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink);white-space:nowrap}
.channel a:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none}
.channel a.is-active{color:var(--primary);font-weight:700}
.channel a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--primary)}
.header-right{display:flex;align-items:center;gap:10px}
.icon-btn{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);background:var(--surface);border-radius:10px;color:var(--ink-muted);cursor:pointer;transition:all .2s ease-out}
.icon-btn:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-light)}
.burger{width:38px;height:38px;display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border:1px solid var(--border);background:var(--surface);border-radius:10px;cursor:pointer}
.burger span{display:block;width:17px;height:2px;border-radius:2px;background:var(--ink)}
.burger:hover{border-color:var(--primary)}

/* ---------- buttons ---------- */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--primary);color:#fff;border:1.5px solid var(--primary);border-radius:var(--radius-btn);padding:11px 22px;font-size:15px;font-weight:700;box-shadow:var(--shadow-1);cursor:pointer;transition:all .2s ease-out}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;text-decoration:none;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--surface);color:var(--primary);border:1.5px solid var(--primary);border-radius:var(--radius-btn);padding:11px 22px;font-size:15px;font-weight:700;cursor:pointer;transition:all .2s ease-out}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none;transform:translateY(-2px)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--primary)}
.btn-link svg{transition:transform .2s ease-out}
.btn-link:hover{text-decoration:none;color:var(--primary-dark)}
.btn-link:hover svg{transform:translateX(4px)}

/* ---------- badge / crumb ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary);border-radius:999px;padding:4px 12px;font-size:13px;font-weight:700}
.badge.accent{background:var(--accent-light);color:var(--accent)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-muted)}
.crumb a{color:var(--ink-muted)}
.crumb a:hover{color:var(--primary)}
.crumb i{color:var(--border);font-style:normal}

/* ---------- category hero ---------- */
.cat-hero{position:relative;background:var(--surface);border-bottom:1px solid var(--border);overflow:hidden}
.cat-hero::after{content:"";position:absolute;right:-60px;top:-40px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(14,90,107,.09),rgba(14,90,107,0) 68%);pointer-events:none}
.cat-hero-inner{position:relative;z-index:2;padding:36px 0 48px}
.cat-hero h1{margin-top:18px;max-width:900px}
.cat-hero h1 mark{background:none;color:var(--primary)}
.cat-lead{margin-top:16px;max-width:740px;font-size:16.5px;color:var(--ink-muted)}
.hero-facts{margin-top:34px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--border);padding-top:22px}
.hero-fact{padding-right:20px;border-right:1px solid var(--border)}
.hero-fact:last-child{border-right:0}
.hero-fact b{display:block;font-size:26px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.hero-fact span{display:block;margin-top:2px;font-size:13px;color:var(--ink-muted)}

/* ---------- main layout ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px}
.main-col{min-width:0}
.side-col{min-width:0}

/* ---------- compact list ---------- */
.tile-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.tile{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:20px 18px 18px;box-shadow:var(--shadow-1);transition:all .2s ease-out}
.tile:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(14,90,107,.3)}
.tile-no{font-size:13px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.tile h3{margin-top:6px;font-size:17px}
.tile p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink-muted)}
.tile .tile-ic{width:34px;height:34px;border-radius:9px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:var(--primary)}

/* ---------- article blocks ---------- */
.block{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-panel);overflow:hidden;box-shadow:var(--shadow-1)}
.block + .block{margin-top:24px}
.split{display:grid;grid-template-columns:1fr 1fr;align-items:stretch}
.split.reverse .split-media{order:2}
.split-media{position:relative;min-height:280px}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-body{padding:34px 32px}
.split-body h2{font-size:24px}
.split-body p{margin-top:14px;color:var(--ink-muted);font-size:15.5px}
.check-list{margin-top:18px}
.check-list li{position:relative;padding-left:24px;margin-bottom:10px;font-size:15px;color:var(--ink)}
.check-list li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:50%;background:var(--primary-light);border:2px solid var(--primary)}

/* ---------- steps ---------- */
.steps{margin-top:8px}
.step{display:flex;gap:18px;padding:20px 0;border-bottom:1px dashed var(--border)}
.step:last-child{border-bottom:0}
.step-num{flex:0 0 auto;width:40px;height:40px;border-radius:50%;background:var(--primary-light);color:var(--primary);font-weight:800;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums}
.step h3{font-size:17px}
.step p{margin-top:6px;font-size:14.5px;color:var(--ink-muted)}

/* ---------- faq ---------- */
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:first-child{border-top:1px solid var(--border)}
.faq-item summary{display:flex;align-items:center;gap:14px;padding:20px 4px;cursor:pointer;list-style:none;font-weight:700;font-size:16.5px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-no{font-size:14px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;flex:0 0 auto}
.faq-arrow{margin-left:auto;flex:0 0 auto;color:var(--ink-muted);transition:transform .25s ease-out}
.faq-item[open]{background:rgba(232,241,243,.45)}
.faq-item[open] .faq-arrow{transform:rotate(180deg)}
.faq-body{padding:0 4px 22px 46px;font-size:15px;line-height:1.8;color:var(--ink-muted)}

/* ---------- sticky consult card ---------- */
.sticky-card{position:sticky;top:24px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-panel);box-shadow:var(--shadow-1);overflow:hidden}
.sticky-head{background:var(--primary);color:#fff;padding:22px 22px 20px}
.sticky-head h3{color:#fff;font-size:19px}
.sticky-head p{margin-top:8px;font-size:13.5px;color:rgba(242,247,248,.85);line-height:1.7}
.sticky-body{padding:20px 22px 24px}
.contact-row{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px dashed var(--border)}
.contact-row:last-of-type{border-bottom:0}
.contact-row .ic{flex:0 0 auto;width:32px;height:32px;border-radius:9px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary)}
.contact-row dt{font-size:12.5px;color:var(--ink-muted)}
.contact-row dd{margin:2px 0 0;font-size:15px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.quick-list{margin-top:8px;border-top:1px solid var(--border);padding-top:14px}
.quick-list h4{font-size:13px;color:var(--ink-muted);font-weight:700;letter-spacing:.04em}
.quick-list a{display:block;padding:8px 0;font-size:14.5px;color:var(--ink);border-bottom:1px dashed var(--border)}
.quick-list a:last-child{border-bottom:0}
.quick-list a:hover{color:var(--primary);text-decoration:none}

/* ---------- CTA ---------- */
.cta-band{background:var(--primary-dark);color:var(--ink-invert);border-radius:var(--radius-panel);padding:44px 42px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-band h2{color:#fff;font-size:26px}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(242,247,248,.8);max-width:620px}
.cta-band .btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.cta-band .btn-primary:hover{background:#d9691f;border-color:#d9691f}

/* ---------- footer ---------- */
.footer-link{display:inline-block;padding:4px 0;font-size:14.5px;color:rgba(242,247,248,.78)}
.footer-link:hover{color:#fff;text-decoration:underline}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;background:rgba(10,42,50,.45);opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s ease-out;z-index:90}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:min(86vw,360px);background:#fff;padding:20px;overflow-y:auto;transform:translateX(100%);transition:transform .28s ease-out}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--border)}
.drawer-head span{font-weight:800}
.drawer-nav{margin-top:10px}
.drawer-nav a{display:block;padding:13px 10px;border-radius:10px;font-size:15.5px;color:var(--ink);border-bottom:1px solid var(--border)}
.drawer-nav a:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none}
.drawer-nav a.is-active{color:var(--primary);font-weight:700}
.drawer-search{margin-top:18px;display:flex;gap:8px}
.drawer-search input{flex:1;height:44px;border:1px solid var(--border);border-radius:10px;padding:0 14px;font-size:14.5px;background:#fff}
.drawer-search input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(14,90,107,.14)}
.drawer-cta{width:100%;margin-top:14px}

/* ---------- responsive ---------- */
@media (min-width:1024px){
  .layout{grid-template-columns:minmax(0,9fr) minmax(0,3fr)}
}
@media (max-width:1023px){
  h1{font-size:30px}
  h2{font-size:23px}
  .section{padding:60px 0}
  .section-tight{padding:48px 0}
  .container-x{padding-left:20px;padding-right:20px}
  .header-inner{height:56px}
  .cat-hero-inner{padding:26px 0 36px}
  .hero-facts{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:18px}
  .hero-fact{border-right:0;padding-right:0}
  .tile-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sticky-card{position:static}
  .cta-band{padding:32px 24px}
}
@media (max-width:767px){
  .split{grid-template-columns:1fr}
  .split.reverse .split-media{order:0}
  .split-media{min-height:220px;max-height:320px}
  .split-body{padding:26px 22px}
  .tile-grid{grid-template-columns:1fr}
  .faq-body{padding-left:4px}
  .cat-lead{font-size:15.5px}
}
@media (max-width:520px){
  h1{font-size:26px}
  .hero-facts{grid-template-columns:1fr}
  .hero-fact b{font-size:23px}
  .cta-band h2{font-size:22px}
}