/* roulang page: index */
:root{
  --primary:#1B6BD6;
  --primary-dark:#1D4ED8;
  --primary-soft:#EFF6FF;
  --accent:#06B6D4;
  --accent-soft:#CFFAFE;
  --bg:#F8FAFC;
  --panel:#FFFFFF;
  --ink:#1E293B;
  --ink-2:#475569;
  --ink-3:#64748B;
  --line:#E2E8F0;
  --line-soft:#E9EEF5;
  --radius:14px;
  --radius-lg:16px;
  --radius-sm:8px;
  --shadow-card:0 1px 3px rgba(15,23,42,.06),0 4px 12px rgba(15,23,42,.04);
  --shadow-hover:0 8px 24px rgba(15,23,42,.08);
  --font-stack:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-stack);
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
.container-site{
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding-top:96px;padding-bottom:96px}
.section-sm{padding-top:72px;padding-bottom:72px}
.section-title{
  font-size:32px;
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.3;
  color:var(--ink);
}
.section-sub{
  font-size:16px;
  color:var(--ink-2);
  margin:12px auto 0;
  max-width:720px;
}
.shadow-card{box-shadow:var(--shadow-card)}
.shadow-hover{box-shadow:var(--shadow-hover)}
.bg-soft{background:#F1F5F9}
.bg-soft-blue{background:var(--primary-soft)}
.text-primary{color:var(--primary)}
.text-accent{color:var(--accent)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  font-weight:500;
  height:46px;
  padding-left:24px;
  padding-right:24px;
  transition:all .2s ease;
  border:1px solid transparent;
  white-space:nowrap;
}
.btn:active{transform:scale(.98)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-primary{
  background:var(--primary);
  color:#fff;
}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{
  background:#fff;
  border-color:#cbd5e1;
  color:var(--ink);
}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:#F8FBFF}
.btn-lg{height:52px;padding-left:32px;padding-right:32px;font-size:16px}
.btn-sm{height:40px;padding-left:18px;padding-right:18px;font-size:14px}
.btn-line{
  background:transparent;
  color:var(--primary);
}
.btn-line:hover{opacity:.75}
.badge{
  display:inline-flex;
  align-items:center;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:13px;
  padding:4px 12px;
  font-weight:500;
  line-height:1.5;
}
.badge-accent{
  background:var(--accent-soft);
  color:#0E7490;
}
.nav-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:72px;
  padding-left:16px;
  padding-right:16px;
  color:#4b5563;
  font-size:15px;
  font-weight:500;
  transition:color .2s ease;
}
.nav-item:hover{color:var(--primary)}
.nav-item.active{color:var(--primary)}
.nav-item.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:10px;
  width:5px;
  height:5px;
  border-radius:999px;
  background:var(--primary);
  transform:translateX(-50%);
}
.search-wrap{
  display:flex;
  align-items:center;
  background:#F1F5F9;
  border:1px solid #E2E8F0;
  border-radius:999px;
  height:40px;
  width:220px;
  padding:0 14px;
  transition:border-color .2s ease;
}
.search-wrap:focus-within{border-color:var(--primary);background:#fff}
.search-wrap input{
  background:transparent;
  border:0;
  outline:0;
  width:100%;
  font-size:14px;
  color:var(--ink);
}
.search-wrap input::placeholder{color:#94a3b8}
.search-wrap svg{flex:none;color:#94a3b8;margin-right:6px}
.hero{
  position:relative;
  background:linear-gradient(135deg,#EDF2F7 0%,#F8FAFC 70%);
  overflow:hidden;
}
.hero-grid-bg{
  position:absolute;
  inset:0;
  background-image:radial-gradient(circle,#cbd5e1 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.14;
  pointer-events:none;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  background:#fff;
  border:1px solid #e2e8f0;
  box-shadow:var(--shadow-card);
  border-radius:999px;
  padding:6px 14px;
  font-size:14px;
  color:var(--ink-2);
}
.hero-eyebrow .dot{
  width:7px;height:7px;border-radius:999px;background:var(--accent);margin-right:8px;flex:none;
}
.hero-title{
  font-size:42px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.025em;
  margin-top:22px;
  color:#0f172a;
}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--ink-2);
  margin-top:18px;
  max-width:550px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-visual{position:relative}
.hero-img-card{
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow-hover);
  background:#fff;
}
.hero-img-card img{width:100%;height:360px;object-fit:cover;object-position:center}
.float-card{
  position:absolute;
  background:#fff;
  border-radius:14px;
  box-shadow:var(--shadow-hover);
  padding:14px 18px;
  display:flex;
  align-items:center;
  gap:12px;
  border:1px solid rgba(226,232,240,.7);
}
.float-card .num{font-size:22px;font-weight:700;color:#0f172a;line-height:1}
.float-card .label{font-size:13px;color:var(--ink-3);margin-top:3px}
.float-card .icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--primary-soft);color:var(--primary);flex:none;
}
.float-1{top:-24px;left:-18px}
.float-2{bottom:-24px;right:-12px}
.trust-strip{
  margin-top:64px;
  background:#fff;
  border:1px solid #eef2f7;
  border-radius:16px;
  padding:18px 0;
  box-shadow:var(--shadow-card);
}
.trust-item{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:8px 24px;
}
.trust-item .t-dot{
  width:8px;height:8px;border-radius:999px;background:var(--accent);margin-top:9px;flex:none;
}
.trust-item .t-name{font-weight:600;font-size:15px}
.trust-item .t-sub{font-size:13px;color:var(--ink-3)}
.feature-card{
  background:#fff;
  border-radius:16px;
  padding:30px 28px 26px;
  box-shadow:var(--shadow-card);
  border:1px solid #eef2f7;
  transition:all .25s ease;
  position:relative;
  overflow:hidden;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.feature-card .card-index{
  position:absolute;
  right:20px;
  top:16px;
  font-size:48px;
  font-weight:700;
  color:#f1f5f9;
  line-height:1;
}
.feature-card .icon-box{
  width:48px;height:48px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  color:var(--primary);
  margin-bottom:22px;
}
.feature-card h3{font-size:20px;font-weight:600;margin:18px 0 12px}
.feature-card p{font-size:15px;color:var(--ink-2);line-height:1.75}
.feature-card .more-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:18px;
  color:var(--primary);font-size:14px;font-weight:500;
}
.feature-card .more-link:hover{text-decoration:underline}
.feature-card.f-bg-1{background:#fff}
.feature-card.f-bg-2{background:#F1F5F9;box-shadow:0 10px 22px rgba(15,23,42,.04)}
.feature-card.f-bg-3{background:var(--primary-soft);box-shadow:0 10px 22px rgba(30,64,175,.06)}
.scenario-block{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:44px;
  align-items:center;
}
.scenario-block .media{
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.scenario-block .media img{width:100%;height:300px;object-fit:cover;object-position:center;transition:transform .6s ease}
.scenario-block .media:hover img{transform:scale(1.03)}
.scenario-block .sc-label{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-block;
  border-radius:999px;
  background:var(--primary-soft);
  padding:5px 14px;
  margin-bottom:18px;
}
.scenario-block h3{font-size:26px;font-weight:700;line-height:1.4}
.scenario-block .sc-intro{font-size:16px;color:var(--ink-2);margin-top:14px;line-height:1.8}
.sc-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.sc-tags span{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid #e2e8f0;border-radius:999px;
  font-size:14px;color:var(--ink);padding:6px 14px;
}
.sc-tags svg{color:var(--primary)}
.news-card{
  background:#fff;
  border-radius:14px;
  overflow:hidden;
  border:1px solid #eaf0f6;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease;
  height:100%;
  display:flex;
  flex-direction:column;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.news-thumb{position:relative;overflow:hidden}
.news-thumb img{width:100%;height:160px;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-date-badge{
  position:absolute;
  top:12px;right:12px;
  background:#fff;
  color:var(--ink-2);
  font-size:12px;
  padding:3px 10px;
  border-radius:999px;
  box-shadow:var(--shadow-card);
}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.news-cat{font-size:13px;color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:2px 10px;display:inline-flex;width:fit-content}
.news-body h3{font-size:17px;font-weight:600;line-height:1.5;margin:12px 0 8px}
.news-body h3 a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{
  font-size:14px;
  color:var(--ink-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-more{margin-top:auto;padding-top:16px;font-size:14px;color:var(--primary);font-weight:500;display:inline-flex;align-items:center;gap:5px}
.news-more:hover{text-decoration:underline}
.empty-state{
  border:1px dashed #cbd5e1;
  background:#fff;
  border-radius:16px;
  padding:62px 20px;
  text-align:center;
  color:var(--ink-3);
}
.empty-state svg{margin:0 auto 12px;color:#94a3b8}
.stat-card h3{
  font-size:46px;
  font-weight:700;
  letter-spacing:-.02em;
  color:#0f172a;
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.stat-card .stat-label{font-size:14px;color:var(--ink-3);margin-top:8px}
.brand-cloud{
  display:grid;
  grid-template-columns:repeat(6,minmax(0,1fr));
  gap:14px;
}
.brand-cell{
  background:#fff;
  border:1px solid #e8edf3;
  border-radius:14px;
  height:84px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:8px;
  color:#94a3b8;
  font-size:13px;
  font-weight:500;
  transition:all .3s ease;
}
.brand-cell:hover{color:var(--primary);border-color:#bfdbfe;background:var(--primary-soft);box-shadow:var(--shadow-card)}
.faq-item{
  background:#fff;
  border:1px solid #e2e8f0;
  border-radius:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#bfdbfe;background:#F9FBFF}
.faq-item details>summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:20px 26px;
  font-size:17px;
  font-weight:600;
  cursor:pointer;
  color:#0f172a;
}
.faq-item details>summary::-webkit-details-marker{display:none}
.faq-item summary .faq-icon{
  position:relative;
  width:22px;height:22px;
  flex:none;
}
.faq-item summary .faq-icon::before,
.faq-item summary .faq-icon::after{
  content:"";
  position:absolute;
  background:var(--primary);
  border-radius:2px;
  transition:transform .25s ease;
}
.faq-item summary .faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-item summary .faq-icon::after{top:0;bottom:0;left:10px;width:2px}
.faq-item details[open] summary .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item details[open] summary .faq-icon::before{transform:rotate(180deg)}
.faq-item summary:hover{color:var(--primary)}
.faq-item .faq-body{padding:0 26px 24px;font-size:15px;color:var(--ink-2);line-height:1.8}
.cta-panel{
  background:linear-gradient(135deg,#F0F7FF,#EFF6FF 40%,#F7FBFF);
  border:1px solid #dbeafe;
  border-radius:24px;
  padding:58px 36px;
  text-align:center;
}
.site-footer{
  background:#fff;
  border-top:1px solid #e2e8f0;
  padding-top:60px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:36px;
  padding-bottom:46px;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#0f172a;
  margin-bottom:16px;
}
.footer-links{list-style:none;display:grid;gap:10px}
.footer-links a{color:var(--ink-2);font-size:14px;transition:color .2s}
.footer-links a:hover{color:var(--primary)}
.footer-contact{list-style:none;display:grid;gap:12px;font-size:14px;color:var(--ink-2)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start}
.footer-contact svg{color:var(--primary);margin-top:3px;flex:none}
.footer-bottom{
  border-top:1px solid #e9eef5;
  padding:18px 0;
  font-size:14px;
  color:var(--ink-3);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.mobile-cta{
  display:none;
  position:fixed;
  bottom:0;
  left:0;
  right:0;
  background:#fff;
  border-top:1px solid #e2e8f0;
  padding:10px 16px;
  z-index:60;
  box-shadow:0 -4px 12px rgba(15,23,42,.05);
  align-items:center;
  gap:12px;
}
@media(max-width:1023px){
  .hero-title{font-size:34px}
  .scenario-block{grid-template-columns:1fr;gap:24px}
  .brand-cloud{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:767px){
  .section{padding-top:64px;padding-bottom:64px}
  .section-title{font-size:26px}
  .trust-item{flex-direction:column;gap:2px;padding:10px 16px}
  .float-1{left:8px;top:-16px}
  .float-2{right:8px;bottom:-16px}
  .hero-img-card img{height:260px}
  .brand-cloud{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .mobile-cta{display:flex}
  .footer-bottom{flex-direction:column}
  .container-site{padding-left:18px;padding-right:18px}
}
@media(min-width:768px){
  .hero-title{font-size:44px}
}
.faq-body a,.news-more:hover{color:var(--primary)}
.logo-mark{
  width:38px;height:38px;
  border-radius:10px;
  background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
}
.logo-text{
  font-size:21px;
  font-weight:700;
  letter-spacing:-.01em;
  color:#0f172a;
  margin-left:2px;
}
.link-arrow{display:inline-flex;align-items:center;gap:5px;color:var(--primary);font-weight:500;font-size:14px;transition:gap .2s}
.link-arrow:hover{gap:9px}
.mobilelink{
  display:block;
  border-bottom:1px solid #f1f5f9;
  padding:15px 10px;
  color:#475569;
  font-weight:500;
}
.mobilelink.active{color:var(--primary)}

/* roulang page: category1 */
:root{
    --primary:#1B6BD6;
    --primary-strong:#1D4ED8;
    --accent:#06B6D4;
    --bg:#F8FAFC;
    --card:#FFFFFF;
    --text:#1E293B;
    --text-2:#475569;
    --text-3:#64748B;
    --border:#E2E8F0;
    --radius-card:15px;
    --shadow-card:0 1px 3px rgba(15,23,42,.06),0 4px 12px rgba(15,23,42,.04);
    --shadow-hover:0 8px 24px rgba(15,23,42,.08);
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease}
  button,input,select,textarea{font:inherit}
  .container-site{width:100%;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
  .section-block{padding-top:96px;padding-bottom:96px}
  @media (max-width:768px){
    .section-block{padding-top:64px;padding-bottom:64px}
  }
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    border-bottom:1px solid var(--border);
    box-shadow:0 1px 8px rgba(15,23,42,.03);
  }
  .logo-mark{
    width:36px;height:36px;flex:none;
    display:inline-flex;align-items:center;justify-content:center;
    background:linear-gradient(145deg,#2563EB,#1B6BD6);
    color:#fff;border-radius:10px;
    box-shadow:0 6px 14px rgba(27,107,214,.22);
  }
  .logo-text{
    font-size:20px;font-weight:700;color:var(--text);
    letter-spacing:.2px;white-space:nowrap;
  }
  .nav-item{
    position:relative;
    display:inline-flex;align-items:center;
    padding:28px 0 24px;
    font-size:15px;font-weight:500;
    color:var(--text-2);
    border-bottom:2px solid transparent;
  }
  .nav-item + .nav-item{margin-left:32px}
  .nav-item:hover{color:var(--primary)}
  .nav-item.active{color:var(--primary)}
  .nav-item.active:after{
    content:'';position:absolute;left:50%;bottom:10px;
    transform:translateX(-50%);
    width:5px;height:5px;border-radius:999px;
    background:var(--accent);
  }
  .search-box{
    height:38px;padding:0 14px;
    display:flex;align-items:center;gap:8px;
    border-radius:999px;
    background:#F1F5F9;
    border:1px solid transparent;
    transition:all .2s ease;
  }
  .search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(27,107,214,.08)}
  .search-box input{background:transparent;border:0;outline:0;width:130px;font-size:14px;color:var(--text)}
  .search-box input::placeholder{color:#94A3B8}
  .btn-primary{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    background:var(--primary);color:#fff;
    font-size:15px;font-weight:500;line-height:1;
    border:1px solid var(--primary);
    padding:0 26px;height:46px;border-radius:999px;
    cursor:pointer;transition:all .25s ease;
    box-shadow:0 8px 20px rgba(27,107,214,.15);
  }
  .btn-primary:hover{background:var(--primary-strong);border-color:var(--primary-strong);transform:translateY(-2px);box-shadow:0 12px 24px rgba(29,78,216,.2)}
  .btn-primary:active{transform:scale(.97) translateY(0)}
  .btn-primary:focus-visible,.btn-outline:focus-visible,button:focus-visible,a:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .btn-outline{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    background:#fff;color:var(--primary);
    font-size:15px;font-weight:500;line-height:1;
    border:1px solid #CBD5E1;
    padding:0 26px;height:46px;border-radius:999px;
    cursor:pointer;transition:all .25s ease;
  }
  .btn-outline:hover{border-color:var(--primary);background:#F5F8FF;transform:translateY(-2px)}
  .btn-outline:active{transform:scale(.97) translateY(0)}
  .text-btn{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--primary);font-size:15px;font-weight:500;
    transition:gap .2s ease;
  }
  .text-btn:hover{gap:10px;color:var(--primary-strong)}
  .mobile-menu{
    position:fixed;inset:0;z-index:80;
    background:#fff;padding:22px 20px;
    display:flex;flex-direction:column;gap:6px;
    opacity:0;pointer-events:none;transition:opacity .25s ease;
  }
  .mobile-menu.open{opacity:1;pointer-events:auto}
  .mobile-menu a{display:block;padding:14px 12px;border-radius:10px;font-size:17px;font-weight:500;color:var(--text)}
  .mobile-menu a:hover{background:#F1F5F9;color:var(--primary)}
  .mobile-menu a.active{color:var(--primary);background:#EFF6FF}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.5px;
    margin-bottom:14px;text-transform:uppercase;
  }
  .eyebrow:before{content:"";width:16px;height:2px;background:var(--accent);border-radius:2px}
  .badge{
    display:inline-flex;align-items:center;
    background:#EFF6FF;color:var(--primary);
    font-size:13px;font-weight:500;
    padding:5px 14px;border-radius:999px;line-height:1.4;
  }
  .badge-cyan{
    background:#CFFAFE;color:#0E7490;
  }
  .h1-page{
    font-size:42px;line-height:1.25;font-weight:700;color:var(--text);
    margin:0 0 18px;letter-spacing:-.5px;
  }
  @media (max-width:767px){
    .h1-page{font-size:32px}
  }
  .h2-section{
    font-size:32px;line-height:1.3;font-weight:700;color:var(--text);
    margin:0 0 14px;letter-spacing:-.3px;
  }
  @media (max-width:767px){.h2-section{font-size:26px}}
  .h3-title{font-size:21px;font-weight:700;color:var(--text);line-height:1.45;margin:0 0 10px}
  .lead-text{font-size:16px;line-height:1.9;color:var(--text-2);margin:0}
  .muted{color:var(--text-3)}
  .card-white{background:#fff;border:1px solid rgba(226,232,240,.7);border-radius:var(--radius-card);box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease}
  .card-white:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
  .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
  @media (max-width:1023px){.process-grid{grid-template-columns:repeat(2,1fr)}}
  @media (max-width:539px){.process-grid{grid-template-columns:1fr}}
  .process-step{position:relative;background:#fff;border:1px solid var(--border);border-radius:16px;padding:32px 26px 26px;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease}
  .process-step:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
  .step-num{
    display:flex;align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:14px;
    background:#EFF6FF;color:var(--primary);
    font-size:16px;font-weight:700;
    margin-bottom:18px;
  }
  .step-line-head{display:flex;align-items:center;gap:14px;margin-bottom:3px}
  .connector{display:none}
  @media (min-width:1024px){
    .process-step:not(:last-child) .connector{
      display:block;position:absolute;right:-27px;top:45px;width:30px;
      border-top:2px dashed #CBD5E1;z-index:1;
    }
  }
  .case-item{
    display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;
  }
  @media (max-width:1023px){
    .case-item{grid-template-columns:1fr;gap:28px}
  }
  .case-media{
    position:relative;border-radius:20px;overflow:hidden;
    background:#E2E8F0;box-shadow:var(--shadow-card);
  }
  .case-media img{width:100%;height:100%;min-height:290px;object-fit:cover}
  .case-media .photo-tag{
    position:absolute;left:16px;bottom:16px;
    background:rgba(255,255,255,.92);backdrop-filter:blur(5px);
    color:var(--text-2);font-size:13px;font-weight:500;
    padding:7px 14px;border-radius:999px;
  }
  .case-index{font-size:14px;font-weight:600;color:var(--accent);letter-spacing:1px}
  .case-content ul{list-style:none;margin:18px 0 0;padding:0}
  .case-content li{position:relative;padding-left:22px;margin-bottom:8px;font-size:15px;color:var(--text-2)}
  .case-content li:before{content:"";position:absolute;left:2px;top:10px;width:6px;height:6px;border-radius:99px;background:var(--primary)}
  .stats-row{
    display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
    border-top:1px solid var(--border);border-bottom:1px solid var(--border);
    padding:34px 0;
  }
  @media (max-width:767px){.stats-row{grid-template-columns:repeat(2,1fr);gap:32px 16px}}
  .stat-item{text-align:left}
  .stat-num{font-size:40px;line-height:1;font-weight:700;color:var(--primary);letter-spacing:-1px;font-variant-numeric:tabular-nums}
  @media (max-width:767px){.stat-num{font-size:34px}}
  .stat-label{font-size:14px;color:var(--text-2);margin-top:10px}
  .faq-wrap{max-width:880px;margin-left:auto;margin-right:auto}
  details.faq-item{
    background:#fff;border:1px solid var(--border);border-radius:14px;
    margin-bottom:12px;overflow:hidden;
    transition:border-color .2s ease;
  }
  details.faq-item:hover{background:#F8FAFC;border-color:#CBD5E1}
  details.faq-item[open]{border-color:#BFDBFE;box-shadow:0 4px 14px rgba(27,107,214,.05)}
  details.faq-item summary{
    display:flex;justify-content:space-between;align-items:center;gap:20px;
    list-style:none;cursor:pointer;
    padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
  }
  details.faq-item summary::-webkit-details-marker{display:none}
  details.faq-item .faq-icon{
    flex:none;width:26px;height:26px;border-radius:99px;
    background:#EFF6FF;color:var(--primary);
    display:inline-flex;align-items:center;justify-content:center;
    font-size:18px;font-weight:400;line-height:1;
    transition:transform .25s ease,background .25s ease;
  }
  details.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
  details.faq-item .faq-body{padding:0 24px 22px;font-size:15px;color:var(--text-2);line-height:1.85}
  .cta-panel{
    background:#EFF6FF;border:1px solid #DBEAFE;
    border-radius:22px;padding:52px 44px;
    display:flex;align-items:center;justify-content:space-between;gap:40px;
    box-shadow:var(--shadow-card);
  }
  @media (max-width:767px){.cta-panel{flex-direction:column;align-items:flex-start;padding:32px 24px}}
  .site-footer{
    background:#fff;border-top:1px solid var(--border);
    padding-top:64px;padding-bottom:40px;
  }
  .footer-grid{
    display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:48px 32px;
    margin-bottom:36px;
  }
  @media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr}}
  @media (max-width:639px){.footer-grid{grid-template-columns:1fr}}
  .footer-title{font-size:15px;font-weight:700;margin:0 0 16px;color:var(--text)}
  .footer-links{list-style:none;margin:0;padding:0}
  .footer-links li{margin-bottom:9px}
  .footer-links a{color:var(--text-2);font-size:14px}
  .footer-links a:hover{color:var(--primary)}
  .footer-contact{list-style:none;margin:0;padding:0}
  .footer-contact li{
    display:flex;align-items:center;gap:9px;
    color:var(--text-2);font-size:14px;margin-bottom:13px;
  }
  .footer-contact svg{color:var(--primary)}
  .footer-bottom{
    border-top:1px solid var(--border);
    padding-top:22px;margin-top:16px;
    display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
    color:#64748B;font-size:13px;
  }
  .to-top{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;border-radius:99px;
    background:#F1F5F9;color:var(--text-2);
    transition:background .2s,color .2s;
  }
  .to-top:hover{background:var(--primary);color:#fff}
  .mobile-bottom-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:60;
    background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
    border-top:1px solid var(--border);
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    display:flex;gap:10px;align-items:center;
    box-shadow:0 -4px 18px rgba(15,23,42,.05);
  }
  .mobile-bottom-bar a{
    display:flex;align-items:center;justify-content:center;gap:8px;
    height:44px;font-size:15px;font-weight:500;
  }
  .mobile-bottom-bar .phone-btn{
    flex:1;border:1px solid #CBD5E1;border-radius:999px;color:var(--primary);background:#fff;
  }
  .mobile-bottom-bar .plan-btn{
    flex:1.6;background:var(--primary);color:#fff;border-radius:999px;
  }
  @media (min-width:640px){.mobile-bottom-bar{display:none}}
  body{padding-bottom:0}
  @media (max-width:639px){body{padding-bottom:74px}}

/* roulang page: article */
:root {
        --primary: #1B6BD6;
        --primary-deep: #1D4ED8;
        --primary-soft: #EFF6FF;
        --accent: #06B6D4;
        --canvas: #F8FAFC;
        --surface: #FFFFFF;
        --line: #E2E8F0;
        --text: #1E293B;
        --text-2: #475569;
        --text-3: #64748B;
        --radius-sm: 8px;
        --radius-md: 14px;
        --radius-lg: 16px;
        --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.04);
        --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.08);
        --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    }

    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-sans);
        background: var(--canvas);
        color: var(--text);
        font-size: 16px;
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
    }

    a {
        color: inherit;
        text-decoration: none;
    }

    img {
        max-width: 100%;
        display: block;
    }

    button,
    input,
    select,
    textarea {
        font-family: inherit;
    }

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

    .container-site {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }

    .container-article {
        width: 100%;
        max-width: 780px;
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }

    .section-gap {
        padding: 96px 0;
    }

    @media (max-width: 640px) {
        .section-gap {
            padding: 64px 0;
        }
    }

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

    .logo-mark {
        width: 38px;
        height: 38px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(145deg, #2563EB, #1B6BD6);
        color: #fff;
        border-radius: 11px;
        box-shadow: 0 6px 16px rgba(37, 99, 235, .2);
    }

    .logo-text {
        font-size: 20px;
        font-weight: 700;
        color: var(--text);
        letter-spacing: -.01em;
        white-space: nowrap;
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 60;
        background: rgba(255, 255, 255, .96);
        backdrop-filter: blur(8px);
        border-bottom: 1px solid var(--line);
    }

    .site-topbar {
        background: #fff;
        border-bottom: 1px solid #EEF2F7;
    }

    .site-topbar-inner {
        min-height: 36px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-size: 13px;
        color: var(--text-3);
    }

    .site-topbar .topbar-phone {
        color: var(--text-2);
        font-weight: 500;
        margin-left: 8px;
    }

    .header-flex {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        min-height: 76px;
    }

    .site-nav {
        display: flex;
        align-items: center;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-2);
        gap: 4px;
    }

    .nav-item {
        position: relative;
        display: inline-flex;
        align-items: center;
        padding: 28px 14px 22px;
        color: var(--text-2);
        transition: color .2s ease;
    }

    .nav-item:hover {
        color: var(--primary);
    }

    .nav-item:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
        border-radius: 8px;
    }

    .nav-item.active {
        color: var(--primary);
    }

    .nav-item.active::after {
        content: "";
        position: absolute;
        bottom: 14px;
        left: 50%;
        transform: translateX(-50%);
        width: 5px;
        height: 5px;
        border-radius: 999px;
        background: var(--primary);
    }

    .nav-search {
        display: flex;
        align-items: center;
        gap: 6px;
        background: #F1F5F9;
        border: 1px solid #EEF2F7;
        border-radius: 999px;
        padding: 8px 8px 8px 14px;
        width: 190px;
        transition: border-color .2s, box-shadow .2s, background .2s;
    }

    .nav-search:focus-within {
        background: #fff;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(27, 107, 214, .1);
    }

    .nav-search input {
        border: none;
        outline: none;
        background: transparent;
        flex: 1;
        font-size: 13px;
        color: var(--text);
        min-width: 0;
    }

    .nav-search input::placeholder {
        color: #94A3B8;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 44px;
        padding: 0 22px;
        border-radius: 10px;
        font-size: 15px;
        font-weight: 500;
        transition: all .2s ease;
        white-space: nowrap;
        border: 1px solid transparent;
    }

    .btn:active {
        transform: scale(.98);
    }

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

    .btn-primary {
        background: var(--primary);
        color: #fff;
        box-shadow: 0 6px 16px rgba(27, 107, 214, .18);
    }

    .btn-primary:hover {
        background: var(--primary-deep);
        box-shadow: 0 8px 20px rgba(29, 78, 216, .25);
    }

    .btn-outline {
        background: #fff;
        border-color: #CBD5E1;
        color: var(--text-2);
    }

    .btn-outline:hover {
        border-color: var(--primary);
        color: var(--primary);
        background: rgba(27, 107, 214, .04);
    }

    .btn-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--primary);
        font-weight: 500;
        font-size: 15px;
    }

    .btn-link svg {
        transition: transform .2s;
    }

    .btn-link:hover svg {
        transform: translateX(4px);
    }

    .menu-trigger {
        width: 42px;
        height: 42px;
        border-radius: 10px;
        border: 1px solid var(--line);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: var(--text);
        transition: background .2s, border-color .2s;
    }

    .menu-trigger:hover {
        background: #F1F5F9;
    }

    .mobile-panel {
        display: block;
        position: fixed;
        top: 0;
        right: 0;
        width: 320px;
        max-width: 86vw;
        height: 100vh;
        background: #fff;
        z-index: 100;
        box-shadow: -12px 0 32px rgba(15, 23, 42, .12);
        transform: translateX(105%);
        transition: transform .3s ease;
        overflow-y: auto;
    }

    .mobile-panel.open {
        transform: translateX(0);
    }

    .mobile-panel a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 14px 20px;
        border-bottom: 1px solid #F1F5F9;
        font-weight: 500;
        color: var(--text);
    }

    .mobile-panel a:hover {
        background: #F8FAFC;
        color: var(--primary);
    }

    .mobile-panel a.active {
        color: var(--primary);
    }

    .detail-masthead {
        background: linear-gradient(180deg, #F1F5F9 0%, #F8FAFC 100%);
        border-bottom: 1px solid var(--line);
        padding: 30px 0 36px;
    }

    .breadcrumb {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--text-3);
        margin-bottom: 24px;
    }

    .breadcrumb a {
        color: var(--text-3);
        transition: color .2s;
    }

    .breadcrumb a:hover {
        color: var(--primary);
    }

    .breadcrumb .breadcrumb-item {
        max-width: 340px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        color: var(--primary);
    }

    .breadcrumb-divider {
        color: #94A3B8;
    }

    .article-eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: var(--primary-soft);
        color: var(--primary);
        font-size: 13px;
        font-weight: 500;
        padding: 5px 14px;
        border-radius: 999px;
        margin-bottom: 18px;
    }

    .article-title {
        font-size: 32px;
        line-height: 1.35;
        font-weight: 700;
        color: var(--text);
        padding-left: 18px;
        border-left: 4px solid var(--primary);
        margin-bottom: 16px;
        letter-spacing: -.01em;
    }

    .article-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 18px;
        color: var(--text-3);
        font-size: 14px;
        margin-top: 16px;
    }

    .article-meta span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .article-main {
        padding-top: 0;
    }

    .article-content-wrap {
        padding: 16px 0 32px;
    }

    .article-content {
        font-size: 16px;
        line-height: 1.9;
        color: var(--text-2);
        overflow-wrap: break-word;
    }

    .article-content p {
        margin-bottom: 1.6em;
    }

    .article-content strong {
        color: var(--text);
        font-weight: 600;
    }

    .article-content h2 {
        font-size: 24px;
        color: var(--text);
        margin: 2em 0 .8em;
        padding-bottom: .4em;
        border-bottom: 1px solid var(--line);
    }

    .article-content h3 {
        font-size: 20px;
        color: var(--text);
        margin: 1.8em 0 .7em;
    }

    .article-content a {
        color: var(--primary);
        text-decoration: underline;
        text-underline-offset: 3px;
    }

    .article-content ul,
    .article-content ol {
        margin: 0 0 1.6em 1.2em;
        padding-left: .4em;
    }

    .article-content li {
        margin-bottom: .6em;
        padding-left: .2em;
    }

    .article-content ul li {
        list-style: none;
        position: relative;
        padding-left: 24px;
    }

    .article-content ul li::before {
        content: "";
        position: absolute;
        left: 2px;
        top: .78em;
        width: 8px;
        height: 8px;
        border-radius: 3px;
        background: var(--primary);
        opacity: .55;
    }

    .article-content ol {
        counter-reset: article-ol;
        list-style: none;
    }

    .article-content ol li {
        counter-increment: article-ol;
        position: relative;
        padding-left: 34px;
    }

    .article-content ol li::before {
        content: counter(article-ol);
        position: absolute;
        left: 0;
        top: .18em;
        width: 24px;
        height: 24px;
        border-radius: 50%;
        background: var(--primary-soft);
        color: var(--primary);
        font-weight: 600;
        font-size: 13px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .article-content img {
        width: 100%;
        height: auto;
        border-radius: 16px;
        border: 1px solid var(--line);
        box-shadow: var(--shadow-card);
        margin: 1.8em 0;
    }

    .article-content blockquote {
        margin: 1.6em 0;
        padding: 18px 22px;
        background: var(--primary-soft);
        border-radius: 0 14px 14px 0;
        border-left: 4px solid var(--primary);
        color: var(--text-2);
    }

    .article-content blockquote p:last-child {
        margin-bottom: 0;
    }

    .article-content hr {
        border: none;
        border-top: 1px solid var(--line);
        margin: 2.4em 0;
    }

    .article-content table {
        width: 100%;
        border-collapse: collapse;
        margin: 1.6em 0;
        font-size: 14px;
        background: #fff;
        border-radius: 12px;
        overflow: hidden;
        border: 1px solid var(--line);
    }

    .article-content th,
    .article-content td {
        padding: 11px 14px;
        text-align: left;
        border-bottom: 1px solid #EEF2F7;
    }

    .article-content th {
        background: #F8FAFC;
        color: var(--text);
        font-weight: 600;
    }

    .article-content tr:last-child td {
        border-bottom: none;
    }

    .content-not-found {
        background: #fff;
        border: 1px dashed #CBD5E1;
        border-radius: 20px;
        text-align: center;
        padding: 72px 24px;
        margin: 36px 0;
    }

    .card {
        background: #fff;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-card);
        border: 1px solid #EEF2F7;
        transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }

    .card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
        border-color: #DBEAFE;
    }

    .pill {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 4px 14px;
        font-size: 13px;
        border-radius: 999px;
        background: var(--primary-soft);
        color: var(--primary);
        font-weight: 500;
    }

    .pill-cyan {
        background: #CFFAFE;
        color: #0E7490;
    }

    .inline-cta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        background: linear-gradient(135deg, #EFF6FF, #F0F9FF);
        border: 1px solid #DBEAFE;
        border-radius: 20px;
        padding: 28px 34px;
        margin: 56px 0 36px;
        flex-wrap: wrap;
    }

    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        margin-top: 32px;
    }

    .related-card {
        display: flex;
        background: #fff;
        border-radius: 16px;
        overflow: hidden;
        box-shadow: var(--shadow-card);
        border: 1px solid #EEF2F7;
        transition: transform .25s, box-shadow .25s;
    }

    .related-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
    }

    .related-card img {
        width: 132px;
        min-width: 132px;
        object-fit: cover;
    }

    .related-card-body {
        padding: 16px 18px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .site-footer {
        background: #fff;
        border-top: 1px solid var(--line);
        padding: 60px 0 0;
        margin-top: 40px;
    }

    .site-footer .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 0.8fr 0.9fr 1fr;
        gap: 44px;
        padding-bottom: 40px;
    }

    .footer-title {
        font-size: 16px;
        font-weight: 600;
        color: var(--text);
        margin-bottom: 18px;
    }

    .footer-links,
    .footer-contact {
        list-style: none;
        margin: 0;
        padding: 0;
        display: grid;
        gap: 11px;
        font-size: 14px;
        color: var(--text-2);
    }

    .footer-links a {
        color: var(--text-2);
        transition: color .2s;
    }

    .footer-links a:hover {
        color: var(--primary);
    }

    .footer-contact li {
        display: flex;
        align-items: flex-start;
        gap: 8px;
        color: var(--text-2);
        line-height: 1.6;
    }

    .footer-contact li svg {
        margin-top: 4px;
        color: var(--text-3);
        flex-shrink: 0;
    }

    .footer-bottom {
        border-top: 1px solid var(--line);
        padding: 18px 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        font-size: 13px;
        color: var(--text-3);
    }

    .back-top {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--text-3);
        font-size: 13px;
        transition: color .2s;
    }

    .back-top:hover {
        color: var(--primary);
    }

    .sticky-mobile-bar {
        display: none;
    }

    @media (max-width: 1023px) {
        .site-nav {
            display: none;
        }
        .header-cta {
            display: none;
        }
        .nav-search-desktop {
            display: none;
        }
        .section-gap {
            padding: 76px 0;
        }
        .related-grid {
            grid-template-columns: 1fr 1fr;
        }
        .site-footer .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 36px;
        }
        .footer-bottom {
            flex-direction: column;
            padding-bottom: 80px;
        }
        .sticky-mobile-bar {
            display: flex;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 80;
            background: #fff;
            border-top: 1px solid var(--line);
            box-shadow: 0 -6px 20px rgba(15, 23, 42, .06);
            padding: 10px 16px;
            gap: 10px;
            align-items: center;
        }
        .sticky-mobile-bar .btn {
            flex: 1;
            height: 46px;
            font-size: 15px;
            border-radius: 999px;
        }
        .sticky-mobile-bar .btn-sticky-phone {
            flex: 0 0 auto;
            width: 46px;
            height: 46px;
            color: var(--primary);
            border: 1px solid #DBEAFE;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-soft);
        }
        .article-title {
            font-size: 26px;
            line-height: 1.4;
        }
        .inline-cta {
            padding: 24px;
        }
    }

    @media (max-width: 640px) {
        .container-site,
        .container-article {
            padding-left: 16px;
            padding-right: 16px;
        }
        .site-topbar-inner {
            font-size: 12px;
        }
        .topbar-right {
            display: none;
        }
        .header-flex {
            min-height: 64px;
        }
        .logo-text {
            font-size: 18px;
        }
        .related-grid {
            grid-template-columns: 1fr;
        }
        .related-card img {
            width: 112px;
            min-width: 112px;
        }
        .site-footer .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .article-title {
            font-size: 22px;
        }
        .detail-masthead {
            padding: 18px 0 26px;
        }
        .rss-tip {
            flex-direction: column;
            align-items: flex-start;
            gap: 12px;
        }
        .inline-cta .btn {
            width: 100%;
        }
    }

/* roulang page: category2 */
:root {
            --brand: #1B6BD6;
            --brand-dark: #1D4ED8;
            --ice: #06B6D4;
            --bg-page: #F8FAFC;
            --bg-card: #FFFFFF;
            --bg-soft: #F1F5F9;
            --bg-blue-soft: #EFF6FF;
            --text-ink: #1E293B;
            --text-sub: #475569;
            --text-faint: #64748B;
            --border: #E2E8F0;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .04);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, .08);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --container: 1200px;
            --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background-color: var(--bg-page);
            color: var(--text-ink);
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        a,
        button,
        input,
        summary {
            transition: all .18s ease;
        }

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

        .container-site {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            height: 78px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .logo-mark {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            color: #FFFFFF;
            background: linear-gradient(135deg, #2563EB 0%, #1B6BD6 100%);
            box-shadow: 0 6px 14px rgba(27, 107, 214, .18);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: .01em;
            color: var(--text-ink);
            line-height: 1.2;
            white-space: nowrap;
        }

        .nav-item {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 10px 0;
            color: var(--text-sub);
            text-decoration: none;
            font-weight: 500;
            letter-spacing: .01em;
        }

        .nav-item:hover {
            color: var(--brand);
        }

        .nav-item.active {
            color: var(--brand);
        }

        .nav-item.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: -2px;
            width: 6px;
            height: 6px;
            border-radius: 999px;
            background: var(--ice);
            transform: translateX(-50%);
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 6px;
            width: 190px;
            height: 40px;
            padding: 0 14px;
            border-radius: 999px;
            background: var(--bg-page);
            border: 1px solid var(--border);
        }

        .search-box input {
            width: 100%;
            border: 0;
            background: transparent;
            font-size: 14px;
            color: var(--text-ink);
            outline: none;
        }

        .search-box input::placeholder {
            color: #94A3B8;
        }

        .search-box:focus-within {
            border-color: var(--brand);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(27, 107, 214, .08);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid transparent;
            font-weight: 600;
            font-size: 15px;
            height: 44px;
            padding: 0 24px;
            border-radius: 10px;
            text-decoration: none;
            cursor: pointer;
            line-height: 1;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--brand);
            color: #FFFFFF;
            box-shadow: 0 6px 14px rgba(27, 107, 214, .16);
        }

        .btn-primary:hover {
            background: var(--brand-dark);
            transform: translateY(-1px);
            box-shadow: 0 10px 20px rgba(27, 107, 214, .18);
        }

        .btn-primary:active {
            transform: scale(.98);
        }

        .btn-outline {
            background: #FFFFFF;
            border-color: #94A3B8;
            color: var(--text-ink);
        }

        .btn-outline:hover {
            border-color: var(--brand);
            color: var(--brand);
            background: var(--bg-blue-soft);
        }

        .btn-outline:active {
            transform: scale(.98);
        }

        .menu-toggle {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: #FFFFFF;
            color: var(--text-ink);
        }

        .menu-toggle:hover {
            border-color: var(--brand);
            color: var(--brand);
        }

        .mobile-menu {
            background: #FFFFFF;
            border-top: 1px solid #F1F5F9;
            padding: 20px 0 22px;
            box-shadow: 0 18px 30px rgba(15, 23, 42, .06);
        }

        .mobile-menu .nav-item {
            display: block;
            padding: 11px 0;
            border-bottom: 1px solid #F1F5F9;
        }

        .mobile-menu .nav-item.active::after {
            display: none;
        }

        .mobile-menu .nav-item.active {
            color: var(--brand);
            font-weight: 600;
        }

        .page-head {
            padding: 56px 0 40px;
            background: linear-gradient(180deg, #EDF2F7 0%, #F8FAFC 100%);
            border-bottom: 1px solid #EDF2F7;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-faint);
            margin-bottom: 24px;
            gap: 8px;
        }

        .breadcrumb a {
            color: var(--text-sub);
            text-decoration: none;
        }

        .breadcrumb a:hover {
            color: var(--brand);
        }

        .breadcrumb .current {
            color: var(--brand);
        }

        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 5px 14px;
            border-radius: 999px;
            background: var(--bg-blue-soft);
            color: var(--brand);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .04em;
        }

        .sky-kicker {
            background: #CFFAFE;
            color: #0E7490;
        }

        .section {
            padding-top: 96px;
            padding-bottom: 96px;
        }

        .section-compact {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        .section {
            scroll-margin-top: 90px;
        }

        .card {
            background: #FFFFFF;
            border-radius: 16px;
            box-shadow: var(--shadow-card);
        }

        .product-overview-card {
            position: relative;
            display: block;
            text-decoration: none;
            background: #FFFFFF;
            border-radius: 16px;
            padding: 32px 28px;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: transform .25s ease, box-shadow .25s ease;
            border: 1px solid transparent;
        }

        .product-overview-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: #DBEAFE;
        }

        .product-overview-card.is-soft {
            background: var(--bg-soft);
            border-color: #E2E8F0;
        }

        .product-overview-card.is-blue {
            background: var(--bg-blue-soft);
            border-color: #DBEAFE;
        }

        .product-overview-card h3 {
            font-size: 20px;
            color: var(--text-ink);
            margin: 18px 0 10px;
            line-height: 1.4;
            letter-spacing: .01em;
        }

        .product-overview-card p {
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.75;
            margin: 0;
        }

        .overview-index {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 12px;
            background: #DBEAFE;
            color: var(--brand);
            font-size: 15px;
            font-weight: 700;
        }

        .card-link-text {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 18px;
            color: var(--brand);
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
        }

        .card-link-text svg {
            transition: transform .2s ease;
        }

        .product-overview-card:hover .card-link-text svg {
            transform: translateX(4px);
        }

        .config-list {
            margin-top: 24px;
            border-top: 1px solid #E2E8F0;
        }

        .config-row {
            display: flex;
            padding: 14px 0;
            border-bottom: 1px solid #E2E8F0;
            gap: 16px;
            align-items: flex-start;
        }

        .config-row::before {
            content: "";
            flex: 0 0 8px;
            width: 8px;
            height: 8px;
            border-radius: 999px;
            margin-top: 9px;
            background: var(--ice);
        }

        .config-name {
            display: block;
            font-weight: 600;
            color: var(--text-ink);
            font-size: 15px;
            line-height: 1.6;
        }

        .config-desc {
            display: block;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.7;
            margin-top: 2px;
        }

        .scene-tag {
            display: inline-flex;
            align-items: center;
            min-height: 32px;
            padding: 0 14px;
            border-radius: 999px;
            background: #FFFFFF;
            border: 1px solid #DBEAFE;
            color: var(--brand);
            font-size: 13px;
            font-weight: 500;
            text-decoration: none;
        }

        .scene-tag:hover {
            background: var(--bg-blue-soft);
            border-color: var(--brand);
        }

        .feature-media {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .feature-media img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            display: block;
            transition: transform .5s ease;
        }

        .feature-media:hover img {
            transform: scale(1.02);
        }

        .feature-media-badge {
            position: absolute;
            left: 16px;
            bottom: 16px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(6px);
            border-radius: 999px;
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-ink);
            box-shadow: 0 4px 12px rgba(15, 23, 42, .06);
        }

        .spec-panel {
            margin-top: 28px;
            padding: 24px;
            background: #FFFFFF;
            border-radius: 16px;
            border: 1px solid var(--border);
        }

        .spec-panel-title {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 700;
            color: var(--text-ink);
            margin-bottom: 4px;
        }

        .spec-row {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            padding: 13px 0;
            border-bottom: 1px dashed #E2E8F0;
        }

        .spec-row:last-child {
            border-bottom: 0;
        }

        .spec-row span:first-child {
            color: var(--text-faint);
            font-size: 14px;
            flex: 0 0 auto;
        }

        .spec-row span:last-child {
            color: var(--text-sub);
            font-size: 14px;
            text-align: right;
        }

        .step-flow {
            position: relative;
            max-width: 780px;
            margin: 32px auto 0;
            padding-left: 24px;
        }

        .step-flow::before {
            content: "";
            position: absolute;
            left: 8px;
            top: 12px;
            bottom: 12px;
            width: 2px;
            background: #DBEAFE;
        }

        .step-flow li {
            position: relative;
            list-style: none;
            padding: 0 0 40px 30px;
        }

        .step-flow li:last-child {
            padding-bottom: 0;
        }

        .step-flow li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 8px;
            width: 18px;
            height: 18px;
            border-radius: 999px;
            background: #FFFFFF;
            border: 5px solid var(--brand);
            box-shadow: 0 0 0 5px #DBEAFE;
        }

        .step-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand);
            background: #EFF6FF;
            padding: 3px 12px;
            border-radius: 999px;
            margin-bottom: 6px;
        }

        .step-flow h3 {
            margin: 0 0 8px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-ink);
        }

        .step-flow p {
            margin: 0;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.75;
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-ink);
            list-style: none;
            border-radius: 14px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: "+";
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 999px;
            background: var(--bg-blue-soft);
            color: var(--brand);
            font-size: 20px;
            font-weight: 400;
            line-height: 1;
            transition: transform .2s ease, background .2s ease;
        }

        .faq-item details[open] summary {
            color: var(--brand);
        }

        .faq-item details[open] summary::after {
            transform: rotate(45deg);
            background: var(--brand);
            color: #FFFFFF;
        }

        .faq-item .faq-body {
            padding: 0 22px 22px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid #F1F5F9;
            padding-top: 16px;
        }

        .cta-panel {
            position: relative;
            overflow: hidden;
            border-radius: 24px;
            padding: 56px 32px;
            border: 1px solid #DBEAFE;
            background: linear-gradient(120deg, rgba(239,246,255,.97), rgba(255,255,255,.94)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            text-align: center;
        }

        .cta-panel h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-ink);
            margin: 12px 0 12px;
            line-height: 1.4;
        }

        .cta-panel p {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 720px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .site-footer {
            background: #FFFFFF;
            border-top: 1px solid var(--border);
            padding: 64px 0 28px;
            margin-top: 48px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 48px 40px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-ink);
            margin-bottom: 14px;
        }

        .footer-links,
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: var(--text-sub);
            font-size: 14px;
            text-decoration: none;
            line-height: 1.7;
        }

        .footer-links a:hover {
            color: var(--brand);
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin-bottom: 10px;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.6;
        }

        .footer-contact svg {
            flex: 0 0 auto;
            color: var(--brand);
            margin-top: 3px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-top: 44px;
            padding-top: 20px;
            border-top: 1px solid #E2E8F0;
            color: var(--text-faint);
            font-size: 13px;
        }

        .back-top {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 999px;
            background: var(--bg-page);
            border: 1px solid var(--border);
            color: var(--text-sub);
            cursor: pointer;
        }

        .back-top:hover {
            background: var(--brand);
            border-color: var(--brand);
            color: #FFFFFF;
            transform: translateY(-3px);
        }

        .mobile-bar {
            display: none;
        }

        @media (max-width: 1023px) {
            .header-desktop-nav,
            .header-desktop-search,
            .header-desktop-cta {
                display: none !important;
            }
        }

        @media (max-width: 767px) {
            .section {
                padding-top: 64px;
                padding-bottom: 64px;
            }
            .section-compact {
                padding-top: 44px;
                padding-bottom: 44px;
            }
            .page-head {
                padding: 40px 0 32px;
            }
            .feature-media img {
                height: 320px;
            }
            .cta-panel {
                padding: 40px 20px;
                border-radius: 20px;
            }
            .cta-panel h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                margin-top: 32px;
            }
            .mobile-bar {
                position: fixed;
                left: 0;
                right: 0;
                bottom: 0;
                z-index: 60;
                display: flex;
                align-items: center;
                justify-content: space-between;
                gap: 10px;
                background: rgba(255, 255, 255, .96);
                backdrop-filter: blur(8px);
                border-top: 1px solid var(--border);
                padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
                box-shadow: 0 -8px 24px rgba(15, 23, 42, .05);
            }
            .mobile-bar .bar-phone {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                gap: 6px;
                height: 44px;
                padding: 0 16px;
                border-radius: 10px;
                border: 1px solid var(--border);
                background: #FFFFFF;
                color: var(--text-ink);
                font-size: 14px;
                font-weight: 600;
                text-decoration: none;
                flex: 1;
            }
            .mobile-bar .bar-cta {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                height: 44px;
                padding: 0 18px;
                border-radius: 999px;
                background: var(--brand);
                color: #FFFFFF;
                font-size: 14px;
                font-weight: 600;
                text-decoration: none;
                box-shadow: 0 6px 14px rgba(27, 107, 214, .2);
                flex: 1.15;
            }
            .mobile-bar .bar-cta:hover {
                background: var(--brand-dark);
            }
            body {
                padding-bottom: 72px;
            }
        }

        @media (max-width: 520px) {
            .container-site {
                padding-left: 18px;
                padding-right: 18px;
            }
            .header-inner {
                height: 68px;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-mark {
                width: 36px;
                height: 36px;
                border-radius: 10px;
            }
            .product-overview-card {
                padding: 26px 20px;
            }
            .config-row {
                flex-wrap: wrap;
            }
            .step-flow p {
                font-size: 14px;
            }
        }

/* roulang page: category3 */
:root{
  --primary:#1B6BD6;
  --primary-hover:#1D4ED8;
  --accent:#06B6D4;
  --ink:#1E293B;
  --ink-2:#475569;
  --ink-3:#64748B;
  --bg:#F8FAFC;
  --card:#FFFFFF;
  --border:#E2E8F0;
  --soft:#F1F5F9;
  --blue-soft:#EFF6FF;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:16px;
  --radius-xl:20px;
  --shadow-card:0 1px 3px rgba(15,23,42,.06),0 4px 12px rgba(15,23,42,.04);
  --shadow-hover:0 8px 24px rgba(15,23,42,.08);
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;border:0;outline:none}
input::placeholder,textarea::placeholder{color:#94A3B8}
.container-site{max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}
.site-header{position:sticky;top:0;z-index:50;background:#FFFFFF;border-bottom:1px solid var(--border);box-shadow:0 1px 2px rgba(15,23,42,.02)}
.logo-mark{width:36px;height:36px;border-radius:10px;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;transition:transform .2s ease}
.logo-mark:hover{transform:scale(1.05)}
.logo-text{font-size:20px;font-weight:700;color:var(--ink);letter-spacing:-.02em;white-space:nowrap}
.nav-item{display:inline-flex;align-items:center;padding:8px 2px;margin:0 15px;position:relative;color:var(--ink-2);font-weight:500;line-height:1.4;transition:color .2s ease}
.nav-item:hover{color:var(--primary)}
.nav-item.active{color:var(--primary)}
.nav-item::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-2px;width:5px;height:5px;border-radius:999px;background:transparent;transition:background .2s ease}
.nav-item:hover::after,.nav-item.active::after{background:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:999px;background:var(--primary);border:1px solid transparent;color:#FFFFFF;font-size:15px;font-weight:600;letter-spacing:.01em;transition:all .2s ease;cursor:pointer;white-space:nowrap}
.btn:hover{background:var(--primary-hover);box-shadow:0 6px 18px rgba(27,107,214,.25)}
.btn:active{transform:scale(.98)}
.btn:focus-visible,.site-header a:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-outline{background:#FFFFFF;border-color:#CBD5E1;color:var(--primary)}
.btn-outline:hover{background:#F5F9FF;border-color:var(--primary);color:var(--primary);box-shadow:none}
.btn-lg{height:52px;padding:0 32px;font-size:16px}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.badge-sm{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:var(--blue-soft);color:var(--primary);font-size:13px;font-weight:600;line-height:1.6}
.badge-accent{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:#CFFAFE;color:#0E7490;font-size:13px;font-weight:600}
.page-head{background:linear-gradient(180deg,#EDF2F7 0%,#F8FAFC 100%);border-bottom:1px solid rgba(226,232,240,.7);overflow:hidden}
.breadcrumb-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);margin-bottom:20px}
.breadcrumb-row a{color:var(--ink-3);transition:color .2s}
.breadcrumb-row a:hover{color:var(--primary)}
.breadcrumb-row .current{color:var(--primary);font-weight:500}
.page-title-wrap{position:relative;z-index:1}
.hero-backdrop{position:absolute;right:-10%;top:-10%;width:55%;height:120%;background-image:radial-gradient(circle at center,rgba(27,107,214,.08) 0,transparent 62%);pointer-events:none}
.media-frame{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-hover)}
.media-frame img{width:100%;height:100%;object-fit:cover}
.lift-card{background:var(--card);border:1px solid rgba(226,232,240,.9);border-radius:16px;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease}
.lift-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.benefit-panel{background:linear-gradient(135deg,#EFF6FF 0%,#F8FAFCF0 100%);border:1px solid #DBEAFE;border-radius:20px}
.feature-icon{width:48px;height:48px;flex:none;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;background:#EFF6FF;color:var(--primary);transition:background .2s ease,color .2s ease}
.lift-card:hover .feature-icon,.benefit-panel:hover .feature-icon{background:var(--primary);color:#fff}
.timeline-item{position:relative;display:grid;grid-template-columns:70px 1fr;gap:12px 24px;padding-bottom:38px}
.timeline-item::before{content:"";position:absolute;left:34px;top:70px;bottom:0;width:2px;background:linear-gradient(180deg,#DBEAFE,#FFFFFF)}
.timeline-item:last-child::before{display:none}
.timeline-num{width:70px;height:70px;border-radius:50%;background:#FFFFFF;border:1px solid #DBEAFE;box-shadow:var(--shadow-card);display:flex;align-items:center;justify-content:center;color:var(--primary);font-weight:700;font-size:20px;z-index:1}
.timeline-card{background:#FFFFFF;border:1px solid rgba(226,232,240,.9);border-radius:16px;padding:22px 24px;box-shadow:var(--shadow-card);transition:box-shadow .25s ease,transform .25s ease}
.timeline-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.region-panel{background:#EFF6FF;border-radius:28px;padding:56px 40px;overflow:hidden;position:relative}
.region-panel::before{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;background:rgba(27,107,214,.06)}
.region-panel::after{content:"";position:absolute;left:-60px;bottom:-120px;width:220px;height:220px;border-radius:50%;background:rgba(6,182,212,.07)}
.chip-location{display:inline-flex;align-items:center;padding:9px 17px;background:#FFFFFF;border:1px solid var(--border);border-radius:999px;font-size:14px;font-weight:500;color:var(--ink-2);transition:all .2s ease;margin:5px 5px}
.chip-location:hover{border-color:var(--primary);color:var(--primary);background:#FFFFFF;transform:translateY(-2px);box-shadow:0 6px 16px rgba(27,107,214,.08)}
.stat-item{background:#FFFFFF;border-radius:16px;padding:24px 16px;text-align:center;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease}
.stat-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.stat-num{font-size:36px;font-weight:700;line-height:1.2;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat-label{margin-top:8px;color:var(--ink-2);font-size:14px}
.faq-item{background:#FFFFFF;border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;margin-bottom:14px}
.faq-item:hover{border-color:#BDD6F5;box-shadow:var(--shadow-card)}
.faq-item summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px;cursor:pointer;padding:20px 24px;font-weight:600;font-size:16px;color:var(--ink);transition:color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:none;width:28px;height:28px;border-radius:50%;background:#EFF6FF;color:var(--primary);font-size:20px;font-weight:400;display:inline-flex;align-items:center;justify-content:center;transition:transform .25s ease,background .25s ease,color .25s ease}
.faq-item[open] summary::after{content:"−";background:var(--primary);color:#fff}
.faq-item[open] summary{color:var(--primary)}
.faq-answer{padding:0 24px 20px;color:var(--ink-2);font-size:15px;line-height:1.9;max-width:760px}
.cta-panel{background:linear-gradient(135deg,#EFF6FF 0%,#F8FAFC 100%);border:1px solid #DBEAFE;border-radius:28px}
.site-footer{background:#FFFFFF;border-top:1px solid var(--border);margin-top:0;padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-title{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:18px}
.footer-links li,.footer-contact li{margin-bottom:12px}
.footer-links a{font-size:14px;color:var(--ink-2);transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--primary);padding-left:3px}
.footer-contact li{display:flex;gap:10px;align-items:center;font-size:14px;color:var(--ink-2)}
.footer-contact svg{color:var(--primary);flex:none;margin-top:2px}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;font-size:14px;color:var(--ink-3)}
.back-top{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:999px;background:#F1F5F9;color:var(--ink-2);transition:background .2s ease,color .2s ease,transform .2s ease}
.back-top:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.mobile-menu{background:#FFFFFF;border-bottom:1px solid var(--border);box-shadow:0 8px 20px rgba(15,23,42,.04)}
.mobile-menu a{display:block;padding:13px 0;font-size:16px;color:var(--ink-2);font-weight:500;border-bottom:1px solid #F1F5F9}
.mobile-menu a:hover{color:var(--primary)}
.mobile-menu a.active{color:var(--primary)}
@media (max-width:1024px){
  .container-site{padding-left:20px;padding-right:20px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .page-head{padding-top:8px}
  .timeline-item{grid-template-columns:54px 1fr;gap:8px 18px}
  .timeline-num{width:54px;height:54px;font-size:17px}
  .timeline-item::before{left:26px;top:58px}
  .region-panel{padding:40px 22px;border-radius:22px}
  .cta-panel{padding:24px 20px}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .stat-num{font-size:30px}
  .logo-text{font-size:18px}
  .faq-item summary{font-size:15px;padding:18px 18px}
  .faq-answer{padding:0 18px 18px}
  .btn-lg{height:48px;padding:0 24px}
}

/* roulang page: category4 */
:root {
        --primary: #1B6BD6;
        --primary-dark: #1D4ED8;
        --accent: #06B6D4;
        --body-bg: #F8FAFC;
        --card-bg: #FFFFFF;
        --text-main: #1E293B;
        --text-secondary: #475569;
        --muted: #64748B;
        --border: #E2E8F0;
        --border-strong: #CBD5E1;
        --radius-sm: 8px;
        --radius-card: 16px;
        --radius-xl: 24px;
        --shadow-card: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .04);
        --shadow-hover: 0 8px 24px rgba(15, 23, 42, .08);
        --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    }
    * {
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        margin: 0;
        background: var(--body-bg);
        color: var(--text-main);
        font-family: var(--font-sans);
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
    }
    body {
        padding-bottom: 0;
    }
    @media (max-width: 767px) {
        body {
            padding-bottom: 74px;
        }
    }
    img {
        max-width: 100%;
        display: block;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: color .2s ease, box-shadow .2s ease, background .2s ease, transform .2s ease;
    }
    button,
    input,
    select,
    textarea {
        font: inherit;
    }
    a:focus-visible,
    button:focus-visible,
    summary:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
        border-radius: 8px;
    }
    .container-site {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }
    @media (max-width: 640px) {
        .container-site {
            padding: 0 18px;
        }
    }
    .site-header {
        position: sticky;
        top: 0;
        z-index: 60;
        background: rgba(255, 255, 255, .96);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 76px;
        gap: 18px;
    }
    .logo-link {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .logo-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border-radius: 11px;
        color: #fff;
        background: linear-gradient(145deg, #1B6BD6, #2563EB);
        box-shadow: 0 4px 10px rgba(27, 107, 214, .22);
    }
    .logo-text {
        font-weight: 700;
        font-size: 20px;
        letter-spacing: .01em;
        color: var(--text-main);
        white-space: nowrap;
    }
    .nav-item {
        position: relative;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 12px 12px 10px;
        color: #475569;
        font-weight: 500;
        font-size: 15px;
        white-space: nowrap;
        transition: color .2s ease;
    }
    .nav-item:hover {
        color: var(--primary);
    }
    .nav-item.active {
        color: var(--primary);
    }
    .nav-item.active::after {
        content: "";
        display: block;
        width: 4px;
        height: 4px;
        margin: 2px auto 0;
        border-radius: 999px;
        background: var(--accent);
    }
    .site-search {
        display: flex;
        align-items: center;
        width: 188px;
        height: 40px;
        background: #F1F5F9;
        border: 1px solid transparent;
        border-radius: 999px;
        padding: 0 8px 0 15px;
        transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .site-search:focus-within {
        background: #fff;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(27, 107, 214, .1);
    }
    .site-search input {
        min-width: 0;
        width: 100%;
        background: transparent;
        border: 0;
        outline: none;
        color: var(--text-main);
        font-size: 14px;
    }
    .site-search input::placeholder {
        color: #94A3B8;
    }
    .search-btn {
        width: 30px;
        height: 30px;
        border: 0;
        border-radius: 999px;
        background: #FFFFFF;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: background .2s ease, transform .2s ease;
    }
    .search-btn:hover {
        background: var(--primary);
        color: #fff;
    }
    .search-btn:active {
        transform: scale(.94);
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 46px;
        padding: 0 26px;
        border: 1px solid transparent;
        border-radius: 10px;
        font-size: 15px;
        font-weight: 600;
        line-height: 1;
        color: #fff;
        background: var(--primary);
        cursor: pointer;
        white-space: nowrap;
        transition: background .2s ease, transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .btn:hover {
        background: var(--primary-dark);
        transform: translateY(-1px);
        box-shadow: 0 8px 18px rgba(27, 107, 214, .22);
        color: #fff;
    }
    .btn:active {
        transform: translateY(0) scale(.98);
        box-shadow: none;
    }
    .btn-lg {
        height: 52px;
        padding: 0 34px;
        font-size: 16px;
        border-radius: 12px;
    }
    .btn-sm {
        height: 40px;
        padding: 0 20px;
        font-size: 14px;
        border-radius: 9px;
    }
    .btn-outline {
        background: #fff;
        border-color: var(--primary);
        color: var(--primary);
    }
    .btn-outline:hover {
        background: #EFF6FF;
        border-color: var(--primary);
        color: var(--primary-dark);
        box-shadow: 0 6px 14px rgba(27, 107, 214, .12);
    }
    .menu-toggle {
        width: 42px;
        height: 42px;
        border: 0;
        background: #F8FAFC;
        border-radius: 10px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: var(--text-main);
        cursor: pointer;
    }
    .menu-toggle:hover {
        background: #EFF6FF;
        color: var(--primary);
    }
    .mobile-menu {
        display: none;
        border-top: 1px solid var(--border);
        background: #fff;
        padding: 16px 0 24px;
    }
    .mobile-menu.open {
        display: block;
    }
    .mobile-nav {
        display: flex;
        flex-direction: column;
        margin-top: 14px;
    }
    .mobile-nav a {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 13px 4px;
        color: var(--text-secondary);
        font-weight: 500;
        border-bottom: 1px solid #F1F5F9;
    }
    .mobile-nav a:last-child {
        border-bottom: 0;
    }
    .mobile-nav a.active {
        color: var(--primary);
        font-weight: 600;
    }
    .mobile-nav a.active::after {
        content: "";
        width: 6px;
        height: 6px;
        border-radius: 999px;
        background: var(--accent);
    }
    .hero-badge {
        display: inline-flex;
        align-items: flex-start;
        gap: 12px;
        background: #FFFFFF;
        border: 1px solid #E2E8F0;
        box-shadow: var(--shadow-card);
        padding: 14px 18px;
        border-radius: 14px;
    }
    .hero-badge-ic {
        width: 34px;
        height: 34px;
        border-radius: 10px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: #EFF6FF;
        color: var(--primary);
        flex-shrink: 0;
    }
    .section-head-line {
        width: 34px;
        height: 3px;
        border-radius: 99px;
        background: var(--primary);
        margin-bottom: 16px;
    }
    .overline {
        display: inline-flex;
        font-size: 13px;
        font-weight: 600;
        color: var(--primary);
        letter-spacing: .08em;
        margin-bottom: 8px;
    }
    .card {
        background: var(--card-bg);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        transition: transform .24s ease, box-shadow .24s ease;
    }
    .card-hover:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
    }
    .form-card {
        background: #fff;
        border-radius: 18px;
        box-shadow: var(--shadow-card);
        padding: 30px;
    }
    @media (max-width: 640px) {
        .form-card {
            padding: 22px;
        }
    }
    .field-label {
        display: block;
        font-size: 14px;
        font-weight: 600;
        margin-bottom: 7px;
        color: var(--text-main);
    }
    .field-label span {
        color: #EF4444;
    }
    .field-hint {
        font-size: 13px;
        color: var(--muted);
        margin-top: 6px;
    }
    .field-input {
        width: 100%;
        background: #F8FAFC;
        border: 1px solid var(--border);
        border-radius: 10px;
        padding: 12px 15px;
        font-size: 15px;
        color: var(--text-main);
        transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .field-input::placeholder {
        color: #94A3B8;
    }
    .field-input:focus {
        outline: none;
        background: #fff;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(27, 107, 214, .1);
    }
    select.field-input {
        appearance: none;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20' fill='none' stroke='%2364748B' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 8 4 4 4-4'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 14px center;
        padding-right: 42px;
    }
    .form-privacy {
        font-size: 13px;
        color: #94A3B8;
        text-align: center;
        margin-top: 14px;
    }
    .info-card {
        background: #fff;
        border-radius: 18px;
        box-shadow: var(--shadow-card);
        padding: 22px;
    }
    .info-row {
        display: flex;
        gap: 14px;
        align-items: flex-start;
        padding: 14px 0;
        border-bottom: 1px solid #F1F5F9;
    }
    .info-row:last-child {
        border-bottom: 0;
        padding-bottom: 0;
    }
    .info-row:first-child {
        padding-top: 0;
    }
    .info-icon {
        width: 38px;
        height: 38px;
        border-radius: 12px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: #EFF6FF;
        color: var(--primary);
        flex-shrink: 0;
    }
    .map-placeholder {
        position: relative;
        height: 170px;
        border-radius: 14px;
        overflow: hidden;
        margin-top: 16px;
        background-image: linear-gradient(0deg, rgba(30, 41, 59, .35), rgba(30, 41, 59, .05)), url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-position: center;
        box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .12);
    }
    .map-veil {
        position: absolute;
        inset: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        background: rgba(30, 41, 59, .18);
        color: #fff;
        text-align: center;
        padding: 12px;
    }
    .map-main {
        font-size: 19px;
        font-weight: 700;
        letter-spacing: .12em;
    }
    .map-sub {
        font-size: 13px;
        margin-top: 4px;
        opacity: .92;
    }
    .coop-card {
        position: relative;
        border-radius: 18px;
        padding: 30px 28px;
        box-shadow: var(--shadow-card);
        transition: transform .24s ease, box-shadow .24s ease;
    }
    .coop-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
    }
    .coop-card-white {
        background: #fff;
    }
    .coop-card-gray {
        background: #F1F5F9;
    }
    .coop-card-blue {
        background: #EFF6FF;
    }
    .coop-card-num {
        font-size: 15px;
        font-weight: 700;
        color: #64748B;
        letter-spacing: .12em;
        display: block;
        margin-bottom: 22px;
    }
    .card-icon {
        width: 46px;
        height: 46px;
        border-radius: 13px;
        background: #fff;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: var(--primary);
        box-shadow: 0 2px 6px rgba(15, 23, 42, .06);
        margin-bottom: 18px;
    }
    .text-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-weight: 600;
        color: var(--primary);
        font-size: 14px;
        margin-top: 12px;
    }
    .text-link:hover {
        color: var(--primary-dark);
    }
    .text-link svg {
        transition: transform .2s ease;
    }
    .text-link:hover svg {
        transform: translateX(4px);
    }
    .process-steps {
        position: relative;
    }
    .process-item {
        position: relative;
        padding: 0 0 34px 62px;
    }
    .process-item:last-child {
        padding-bottom: 0;
    }
    .process-item::before {
        content: "";
        position: absolute;
        left: 19px;
        top: 46px;
        bottom: -8px;
        width: 1px;
        background: #D3E6FB;
    }
    .process-item:last-child::before {
        display: none;
    }
    .process-num {
        position: absolute;
        left: 0;
        top: 2px;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: #fff;
        border: 1px solid #BFDBFE;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        font-weight: 700;
        box-shadow: 0 2px 8px rgba(27, 107, 214, .08);
    }
    .process-item h3 {
        margin: 0;
        font-size: 18px;
        font-weight: 700;
        color: var(--text-main);
    }
    .process-item p {
        margin: 4px 0 0;
        color: var(--text-secondary);
        font-size: 15px;
        line-height: 1.7;
    }
    .process-photo {
        position: relative;
        border-radius: 22px;
        overflow: hidden;
        box-shadow: var(--shadow-card);
    }
    .faq-list {
        max-width: 860px;
        margin: 0 auto;
    }
    .faq-item {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 14px;
        margin-bottom: 14px;
        overflow: hidden;
        transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .faq-item:hover {
        background: #F8FAFC;
        border-color: #CBD5E1;
    }
    .faq-item[open] {
        background: #fff;
        border-color: #BFDBFE;
        box-shadow: var(--shadow-card);
    }
    .faq-item summary {
        list-style: none;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 20px 24px;
        font-size: 16px;
        font-weight: 600;
        color: var(--text-main);
    }
    .faq-item summary::-webkit-details-marker {
        display: none;
    }
    .faq-icon {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: #EFF6FF;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        transition: transform .3s ease, background .3s ease, color .3s ease;
    }
    .faq-item[open] .faq-icon {
        transform: rotate(45deg);
        background: var(--primary);
        color: #fff;
    }
    .faq-body {
        padding: 0 24px 22px;
        color: var(--text-secondary);
        font-size: 15px;
        line-height: 1.75;
    }
    .cta-panel {
        background: #EFF6FF;
        border: 1px solid #DBEAFE;
        border-radius: 26px;
        padding: 58px 24px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-panel::before {
        content: "";
        position: absolute;
        width: 260px;
        height: 260px;
        border-radius: 50%;
        background: rgba(27, 107, 214, .05);
        top: -90px;
        right: -70px;
    }
    .cta-panel::after {
        content: "";
        position: absolute;
        width: 180px;
        height: 180px;
        border-radius: 50%;
        background: rgba(6, 182, 212, .05);
        bottom: -70px;
        left: -40px;
    }
    .cta-panel .btn {
        z-index: 1;
        position: relative;
    }
    .site-footer {
        background: #fff;
        border-top: 1px solid var(--border);
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
        gap: 44px;
        padding: 56px 0 46px;
    }
    .footer-title {
        font-size: 15px;
        font-weight: 700;
        margin: 0 0 16px;
        color: var(--text-main);
    }
    .footer-links li {
        margin-bottom: 9px;
    }
    .footer-links a,
    .footer-contact {
        font-size: 14px;
        color: var(--text-secondary);
    }
    .footer-links a:hover {
        color: var(--primary);
    }
    .footer-contact li {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 11px;
        color: var(--text-secondary);
        font-size: 14px;
    }
    .footer-contact svg {
        color: var(--primary);
        flex-shrink: 0;
    }
    .footer-bottom {
        border-top: 1px solid #F1F5F9;
        padding: 18px 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
        flex-wrap: wrap;
    }
    .footer-bottom p {
        margin: 0;
        font-size: 13px;
        color: #94A3B8;
    }
    .back-top {
        width: 38px;
        height: 38px;
        border-radius: 999px;
        border: 1px solid var(--border);
        background: #F8FAFC;
        color: var(--text-secondary);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: background .2s ease, color .2s ease, transform .2s ease;
    }
    .back-top:hover {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
    }
    .back-top:active {
        transform: scale(.95);
    }
    .mobile-bottom-bar {
        display: none;
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 80;
        background: rgba(255, 255, 255, .98);
        backdrop-filter: blur(8px);
        border-top: 1px solid var(--border);
        box-shadow: 0 -6px 18px rgba(15, 23, 42, .07);
        padding: 10px 16px;
        gap: 12px;
    }
    @media (max-width: 767px) {
        .mobile-bottom-bar {
            display: flex;
        }
        .mobile-bottom-bar .btn {
            flex: 1;
            height: 44px;
            padding: 0 16px;
        }
    }
    @media (max-width: 1024px) {
        .site-search {
            display: none;
        }
    }
    @media (max-width: 1023px) {
        .header-cta {
            display: none;
        }
    }
    @media (max-width: 880px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 36px 28px;
        }
        .footer-brand-col {
            grid-column: span 2;
        }
    }
    @media (max-width: 520px) {
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 30px;
        }
        .footer-brand-col {
            grid-column: auto;
        }
    }