/* roulang page: index */
:root{
  --primary:#233763;
  --primary-deep:#1A2542;
  --primary-light:#E8EDF8;
  --accent:#E6B64A;
  --accent-light:#F0C25E;
  --night-cyan:#60A5FA;
  --bg-soft:#F8F7F4;
  --bg-card:#FFFFFF;
  --text-main:#2C2C2C;
  --text-weak:#8A8A8A;
  --border-line:#E9E9E6;
  --border-light:#F0EFEA;
  --radius:10px;
  --radius-sm:6px;
  --shadow-card:0 2px 8px rgba(35,55,99,0.03), 0 0 0 1px #E9E9E6;
  --shadow-hover:0 8px 28px rgba(35,55,99,0.08), 0 0 0 1px #E8EDF8;
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:Inter,"Helvetica Neue",Helvetica,Arial,sans-serif;
  --section-gap:96px;
  --section-gap-mobile:48px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.75;
  background:var(--bg-soft);
  color:var(--text-main);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:#2C457F}
.container{max-width:1260px;margin:0 auto;padding:0 24px}
.section{padding:var(--section-gap) 0}
.section-sm{padding:56px 0}
.section-line{border-top:1px solid var(--border-light)}
.text-weak{color:var(--text-weak)}
.text-center{text-align:center}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:#FFFFFF;
  border-bottom:1px solid var(--border-line);
  box-shadow:0 2px 12px rgba(35,55,99,0.03);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-logo{
  width:34px;height:34px;display:flex;align-items:center;justify-content:center;
  background:var(--primary);border-radius:8px;
}
.brand-text{font-size:20px;font-weight:700;color:var(--primary-deep);letter-spacing:.5px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:32px;margin:0 auto}
.main-nav a{
  font-size:15px;font-weight:500;color:var(--text-main);
  padding:24px 0;position:relative;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:-1px;width:100%;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .25s;
}
.main-nav a:hover{color:var(--primary)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--primary)}
.main-nav a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#F5F5F5;border:1px solid #E4E3DF;
  border-radius:999px;padding:0 18px;height:36px;width:220px;
  transition:background .2s,border-color .2s,box-shadow .2s;
}
.search-box:focus-within{
  background:#FFFFFF;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(35,55,99,0.15);
}
.search-box input{
  border:none;outline:none;background:transparent;
  font-size:13px;font-family:var(--font-main);width:100%;color:var(--text-main);
}
.search-box svg{flex-shrink:0;color:var(--text-weak)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-main);font-size:15px;font-weight:600;
  padding:10px 24px;border-radius:8px;border:1px solid transparent;
  cursor:pointer;transition:all .2s;line-height:1.4;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#FFFFFF}
.btn-primary:hover{background:#2C457F;color:#fff;transform:translateY(-1px);box-shadow:0 4px 14px rgba(35,55,99,0.2)}
.btn-outline{background:#FFFFFF;border-color:#D1D5DC;color:var(--primary)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-gold{background:var(--accent);color:#1E2A45}
.btn-gold:hover{background:var(--accent-light);color:#1E2A45;transform:translateY(-1px);box-shadow:0 4px 14px rgba(230,182,74,0.35)}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{background:#F2F5FB;color:var(--primary)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,55,99,0.15)}
.header-cta{height:40px;padding:0 22px}

/* ===== Mobile toggle ===== */
.nav-toggle{
  display:none;background:none;border:none;cursor:pointer;padding:6px;border-radius:6px;
}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--primary-deep);margin:4px 0;border-radius:2px;transition:transform .2s}

/* ===== Hero ===== */
.hero{
  min-height:100vh;min-height:600px;
  background:linear-gradient(rgba(20,28,50,0.7),rgba(20,28,50,0.3)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  display:flex;align-items:center;position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,0.35) 1px,transparent 1px);
  background-size:24px 24px;opacity:0.3;pointer-events:none;
}
.hero-content{width:100%;position:relative;z-index:2;padding:80px 0}
.hero .container{max-width:1260px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,0.12);border:1px solid rgba(255,255,255,0.25);
  border-radius:999px;padding:6px 18px;font-size:13px;color:rgba(255,255,255,0.9);
  backdrop-filter:blur(4px);margin-bottom:24px;
}
.hero h1{
  font-size:44px;line-height:1.25;color:#FFFFFF;font-weight:700;
  max-width:720px;margin-bottom:20px;letter-spacing:1px;
}
.hero-sub{
  font-size:17px;line-height:1.7;color:rgba(255,255,255,0.85);
  max-width:620px;margin-bottom:36px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:72px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid rgba(255,255,255,0.2);
  padding-top:32px;
  background:rgba(15,23,42,0.25);
  backdrop-filter:blur(6px);
  border-radius:var(--radius);
  padding:24px 20px;
  margin-top:0;
}
.hero-stat{text-align:center;padding:8px 12px}
.hero-stat .num{
  font-family:var(--font-num);font-size:40px;font-weight:700;color:#FFFFFF;line-height:1.2;
}
.hero-stat .num sup{font-size:18px;color:var(--accent)}
.hero-stat .label{font-size:13px;color:rgba(255,255,255,0.65);margin-top:4px}

/* ===== Section headers ===== */
.sec-header{max-width:760px;margin-bottom:48px}
.sec-header.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-tag{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:13px;font-weight:600;letter-spacing:1.5px;
  padding:6px 14px;background:var(--primary-light);border-radius:999px;margin-bottom:16px;
}
.sec-tag::before{content:"";width:14px;height:1.5px;background:var(--accent)}
.sec-header h2{
  font-size:34px;line-height:1.3;font-weight:700;color:var(--primary-deep);
  margin-bottom:14px;
}
.sec-header p{font-size:16px;color:var(--text-weak);line-height:1.7}

/* ===== Stats cards ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{
  background:var(--bg-card);border-radius:var(--radius);padding:32px 28px;
  box-shadow:var(--shadow-card);position:relative;overflow:hidden;
  transition:box-shadow .25s,transform .25s;
}
.stat-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.stat-card::before{
  content:"";position:absolute;top:0;right:0;width:48px;height:48px;
  background:radial-gradient(circle at top right,var(--primary-light) 55%,transparent 57%);
  border-radius:0 10px 0 10px;
}
.stat-icon{
  width:42px;height:42px;background:var(--primary-light);border-radius:10px;
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.stat-card .num{
  font-family:var(--font-num);font-size:44px;font-weight:700;color:var(--primary);
  line-height:1.15;
}
.stat-card .unit{font-size:14px;color:var(--text-weak);margin-left:2px;font-weight:400}
.stat-card .title{font-size:15px;font-weight:600;color:var(--text-main);margin-top:10px}
.stat-card .desc{font-size:13px;color:var(--text-weak);margin-top:4px;border-top:1px solid var(--border-light);padding-top:8px}

/* ===== Service matrix ===== */
.svc-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.svc-card{
  background:var(--bg-card);border-radius:var(--radius);padding:32px 28px;
  box-shadow:var(--shadow-card);border:1px solid var(--border-line);
  transition:box-shadow .25s,transform .25s,border-color .25s;
  position:relative;
}
.svc-card:hover{border-color:var(--primary-light);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.svc-card.col-4{grid-column:span 4}
.svc-card.col-2{grid-column:span 2}
.svc-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
  transition:background .2s;
}
.svc-icon.gold{background:rgba(230,182,74,0.15)}
.svc-icon.blue{background:var(--primary-light)}
.svc-card:hover .svc-icon{background:var(--primary)}
.svc-card:hover .svc-icon svg{stroke:#fff}
.svc-card h3{font-size:20px;font-weight:600;color:var(--primary-deep);margin-bottom:10px}
.svc-card p{font-size:14px;color:var(--text-weak);line-height:1.7;margin-bottom:16px}
.svc-link{
  font-size:14px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
}
.svc-link:hover{color:var(--accent)}
.svc-link svg{transition:transform .2s}
.svc-link:hover svg{transform:translateX(4px)}

/* ===== Compare ===== */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
.compare-panel{
  border-radius:var(--radius);padding:44px 40px;position:relative;overflow:hidden;
}
.compare-panel.dark{background:var(--primary-deep);color:#fff}
.compare-panel.light{background:#FFFFFF;border:1px solid var(--border-line);color:var(--text-main)}
.compare-panel h3{font-size:22px;font-weight:700;margin-bottom:8px}
.compare-panel.dark h3{color:#fff}
.compare-panel .toggle-label{
  display:inline-block;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;
  margin-bottom:16px;letter-spacing:.5px;
}
.compare-panel.dark .toggle-label{background:rgba(255,255,255,0.14);color:var(--accent)}
.compare-panel.light .toggle-label{background:var(--primary-light);color:var(--primary)}
.compare-list{list-style:none;margin-top:20px}
.compare-list li{
  display:flex;align-items:flex-start;gap:10px;
  padding:12px 0;border-bottom:1px solid var(--border-line);
  font-size:15px;line-height:1.5;
}
.compare-panel.dark .compare-list li{border-bottom-color:rgba(255,255,255,0.1)}
.compare-list li:last-child{border-bottom:none}
.compare-list .tick{flex-shrink:0;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-top:2px}
.compare-panel.dark .tick{background:var(--accent)}
.compare-panel.light .tick{background:var(--primary-light)}
.compare-list .tick svg{width:12px;height:12px}
.compare-cta{margin-top:32px}

/* ===== News list ===== */
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{
  display:grid;grid-template-columns:120px 1fr auto;gap:24px;align-items:center;
  background:var(--bg-card);border:1px solid var(--border-line);border-radius:var(--radius);
  padding:20px 24px;transition:box-shadow .25s,border-color .25s,transform .2s;
  min-height:120px;
}
.news-item:hover{box-shadow:var(--shadow-hover);border-color:var(--primary-light);transform:translateY(-2px)}
.news-badge{
  display:inline-block;width:fit-content;
  background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;
  padding:4px 14px;border-radius:999px;white-space:nowrap;
}
.news-content h3{font-size:18px;font-weight:600;color:var(--text-main);margin-bottom:6px;line-height:1.45}
.news-item a.news-title{color:var(--text-main)}
.news-item a.news-title:hover{color:var(--primary)}
.news-content p{
  font-size:14px;color:var(--text-weak);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;flex-direction:column;align-items:flex-end;gap:8px;text-align:right}
.news-date{font-size:13px;color:var(--text-weak);font-family:var(--font-num)}
.news-arrow{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--border-line);
  display:flex;align-items:center;justify-content:center;color:var(--primary);
  transition:background .2s,color .2s,border-color .2s;
}
.news-item:hover .news-arrow{background:var(--primary);border-color:var(--primary);color:#fff}
.news-empty{
  text-align:center;padding:80px 20px;background:var(--bg-card);
  border:1px dashed var(--border-line);border-radius:var(--radius);
  color:var(--text-weak);font-size:15px;
}
.news-empty svg{display:block;margin:0 auto 16px;color:var(--border-line)}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--bg-card);border:1px solid var(--border-line);border-radius:var(--radius);
  overflow:hidden;transition:box-shadow .25s;
}
.faq-item:hover{box-shadow:var(--shadow-card)}
.faq-item.active{border-color:var(--primary-light);box-shadow:var(--shadow-hover)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 28px;cursor:pointer;font-size:16px;font-weight:600;color:var(--text-main);
  position:relative;transition:color .2s;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--primary);
  transform:scaleY(0);transition:transform .25s;
}
.faq-item.active .faq-q{color:var(--primary)}
.faq-item.active .faq-q::before{transform:scaleY(1)}
.faq-icon{flex-shrink:0;width:22px;height:22px;position:relative}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .25s;
}
.faq-icon::before{width:14px;height:2px;top:10px;left:4px}
.faq-icon::after{width:2px;height:14px;top:4px;left:10px}
.faq-item.active .faq-icon::after{transform:scaleY(0)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
}
.faq-a-inner{
  padding:0 28px 22px;border-top:1px solid var(--border-line);padding-top:18px;
  font-size:15px;line-height:1.7;color:var(--text-weak);
}
.faq-foot{text-align:center;margin-top:28px}
.faq-foot a{
  color:var(--primary);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;
}
.faq-foot a:hover{color:var(--accent)}

/* ===== CTA form ===== */
.cta-section{background:linear-gradient(135deg,var(--primary-deep) 0%,var(--primary) 100%);color:#fff}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cta-info h2{font-size:32px;font-weight:700;color:#fff;line-height:1.3;margin-bottom:16px}
.cta-info p{color:rgba(255,255,255,0.8);font-size:16px;line-height:1.7;margin-bottom:28px}
.cta-contact{display:flex;flex-direction:column;gap:16px;margin-top:36px;border-top:1px solid rgba(255,255,255,0.2);padding-top:24px}
.cta-contact-item{display:flex;align-items:center;gap:12px;font-size:15px;color:rgba(255,255,255,0.9)}
.cta-contact-item svg{width:18px;height:18px;color:var(--accent)}
.cta-form-card{
  background:#fff;border-radius:12px;padding:40px;box-shadow:0 20px 50px rgba(0,0,0,0.2);
}
.cta-form-card h3{font-size:22px;color:var(--primary-deep);margin-bottom:6px;font-weight:700}
.cta-form-card .form-desc{font-size:14px;color:var(--text-weak);margin-bottom:24px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text-main);margin-bottom:8px}
.form-control{
  width:100%;height:44px;border:1px solid #D8D8D8;border-radius:var(--radius-sm);
  padding:0 14px;font-size:14px;font-family:var(--font-main);color:var(--text-main);
  background:#fff;transition:border-color .2s,box-shadow .2s;outline:none;
}
textarea.form-control{height:auto;padding:12px 14px;resize:vertical;min-height:100px}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(35,55,99,0.12)}
.form-group .btn{width:100%;height:46px}
.form-success{
  display:none;background:#E9F7EF;border:1px solid #C6E6D3;color:#1E7A44;
  border-radius:8px;padding:14px;font-size:14px;text-align:center;margin-top:16px;
}

/* ===== Footer ===== */
.site-footer{background:var(--primary-deep);color:rgba(255,255,255,0.7);padding:72px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 0.8fr 1fr 1fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,0.1)}
.footer-brand .brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-text{color:#fff;font-size:20px;font-weight:700}
.footer-brand p{line-height:1.8;font-size:14px;color:rgba(255,255,255,0.55);max-width:280px}
.footer-col h4{
  color:#fff;font-size:15px;font-weight:600;margin-bottom:20px;letter-spacing:.5px;
  position:relative;padding-bottom:12px;
}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--accent)}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:rgba(255,255,255,0.6);font-size:14px;transition:color .2s,padding-left .2s}
.footer-col ul a:hover{color:var(--accent);padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:10px;color:rgba(255,255,255,0.6)}
.footer-contact svg{width:16px;height:16px;flex-shrink:0;margin-top:4px;color:var(--accent)}
.footer-qr{
  background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);
  border-radius:var(--radius);padding:20px;text-align:center;
  display:flex;flex-direction:column;align-items:center;
}
.footer-qr .qr-placeholder{
  width:110px;height:110px;background:rgba(255,255,255,0.1);border-radius:8px;
  display:flex;align-items:center;justify-content:center;margin-bottom:12px;font-size:12px;color:rgba(255,255,255,0.4);
  position:relative;overflow:hidden;
}
.footer-qr .qr-placeholder::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(0deg,transparent 0px,transparent 4px,rgba(255,255,255,0.08) 4px,rgba(255,255,255,0.08) 5px),
             repeating-linear-gradient(90deg,transparent 0px,transparent 4px,rgba(255,255,255,0.08) 4px,rgba(255,255,255,0.08) 5px);
}
.footer-qr p{font-size:13px;color:rgba(255,255,255,0.5)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;
  padding:24px 0;font-size:13px;color:rgba(255,255,255,0.4);
}
.footer-bottom a{color:rgba(255,255,255,0.5)}
.footer-bottom a:hover{color:var(--accent)}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .main-nav{gap:20px}
  .search-box{width:180px}
  .header-cta{padding:0 16px;font-size:14px}
  .hero h1{font-size:36px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:16px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .svc-card.col-4,.svc-card.col-2{grid-column:span 1}
  .compare-wrap{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .sec-header h2{font-size:28px}
  .news-item{grid-template-columns:100px 1fr;gap:16px}
  .news-meta{align-items:flex-start;grid-column:2;flex-direction:row;text-align:left}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .header-inner{height:60px}
  .main-nav,.header-actions{display:none}
  .nav-toggle{display:block}
  .mobile-menu-open .header-actions{
    display:flex;flex-direction:column;width:100%;background:#fff;padding:16px 24px 20px;
    border-top:1px solid var(--border-line);
  }
  .mobile-menu-open .search-box{width:100%}
  .mobile-menu-open .header-cta{width:100%}
  .main-nav.mobile-open{
    display:flex;flex-direction:column;background:#fff;width:100%;
    padding:8px 24px 16px;border-top:1px solid var(--border-line);
  }
  .main-nav.mobile-open a{
    padding:12px 0;border-bottom:1px solid var(--border-soft);width:100%;
  }
  .main-nav.mobile-open a::after{display:none}
  .hero{min-height:650px;padding:60px 0}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-actions{margin-bottom:40px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:12px;padding:20px 16px}
  .hero-stat .num{font-size:28px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
  .svc-grid{grid-template-columns:1fr}
  .compare-panel{padding:32px 24px}
  .news-item{grid-template-columns:1fr;padding:20px}
  .news-meta{grid-column:1;flex-direction:row;align-items:center}
  .cta-form-card{padding:28px 22px}
  .cta-info h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .footer-bottom{flex-direction:column;text-align:center;padding:20px 16px}
  .header-cta{height:46px}
}
@media (max-width:520px){
  .stats-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
  .hero h1{font-size:26px}
  .sec-header h2{font-size:24px}
  .cta-contact-item{font-size:14px}
}
@media (max-width:360px){
  .hero-stats{grid-template-columns:1fr}
}

.mobile-menu-open .header-inner{flex-wrap:wrap;height:auto;padding:12px 0}
  .mobile-menu-open .main-nav{display:flex;order:3}
  .mobile-menu-open .header-actions{display:flex;order:4;width:100%}
  @media (min-width:769px){
    .main-nav{display:flex !important}
    .header-actions{display:flex !important}
  }
  .nav-toggle{background:none;border:none;cursor:pointer;padding:8px;border-radius:6px}
  @media (max-width:768px){
    .nav-toggle{display:block}
    .main-nav,.header-actions{display:none}
  }

/* roulang page: article */
:root {
  --primary: #233763;
  --primary-dark: #1A2542;
  --primary-light: #E8EDF8;
  --accent: #E6B64A;
  --accent-bright: #F0C25E;
  --cyan: #60A5FA;
  --bg-soft: #F8F7F4;
  --card-bg: #FFFFFF;
  --text-body: #2C2C2C;
  --text-weak: #8A8A8A;
  --border-color: #E9E9E6;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 2px 8px rgba(35,55,99,0.03);
  --shadow-hover: 0 8px 28px rgba(35,55,99,0.08);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "Helvetica Neue", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  background: var(--bg-soft);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color .2s; }
img { max-width: 100%; height: auto; }
input, textarea, button { font-family: inherit; outline: none; }
.container { max-width: 1260px; margin: 0 auto; padding-left: 20px; padding-right: 20px; }
.btn { border-radius: 8px; padding: 10px 24px; font-size: 15px; font-weight: 600; transition: all .25s ease; border: 0; }
.btn:focus-visible { outline: 3px solid rgba(35,55,99,0.15); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #2C457F; color: #fff; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(35,55,99,0.18); }
.btn-outline-light { background: transparent; border: 1px solid rgba(255,255,255,.65); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,.12); color: #fff; transform: translateY(-1px); }
.btn-gold { background: var(--accent); color: #1E2A45; }
.btn-gold:hover { background: var(--accent-bright); color: #1E2A45; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(230,182,74,.35); }
.bg-deep { background: var(--primary-dark); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 2px 12px rgba(35,55,99,.03);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  background: var(--primary-light);
  border-radius: 10px;
  transition: background .2s, transform .2s;
}
.brand:hover .brand-logo { background: #dce5f5; transform: rotate(-6deg); }
.brand-text { font-size: 19px; font-weight: 700; color: var(--primary); letter-spacing: .5px; }
.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a {
  font-size: 15px; font-weight: 500; color: #4a4a4a;
  padding: 6px 2px; position: relative; white-space: nowrap;
}
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 0; height: 2px; background: var(--primary);
  transition: width .25s;
}
.main-nav a:hover { color: var(--primary); }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: var(--primary); }
.main-nav a.active::after { width: 100%; background: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.search-box {
  display: flex; align-items: center; gap: 8px;
  background: #F5F5F5; border: 1px solid #E4E3DF;
  border-radius: 999px; padding: 7px 16px; height: 36px;
  transition: background .25s, border-color .25s, box-shadow .25s;
  color: #9a9a9a;
}
.search-box:focus-within {
  background: #fff; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(35,55,99,.1);
}
.search-box input {
  border: 0; background: transparent; width: 140px;
  font-size: 13px; color: var(--text-body);
}
.search-box input::placeholder { color: #b5b5b5; }
.header-cta { height: 38px; padding: 0 22px; display: inline-flex; align-items: center; white-space: nowrap; }
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--border-color);
  background: #fff; border-radius: 10px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-toggle span {
  display: block; width: 18px; height: 2px;
  background: var(--primary); border-radius: 2px;
  transition: transform .25s, opacity .25s;
}
.mobile-menu {
  background: #fff; border-top: 1px solid var(--border-color);
  padding: 18px 0 26px;
}
.mobile-nav { display: grid; gap: 4px; margin-bottom: 18px; }
.mobile-nav a {
  display: block; padding: 10px 0; font-size: 16px; font-weight: 500;
  color: var(--text-body); border-bottom: 1px solid #f4f4f2;
}
.mobile-nav a.active { color: var(--primary); font-weight: 600; }
.mobile-actions { display: grid; gap: 10px; }
.mobile-actions .search-box { width: 100%; }
.mobile-actions .search-box input { width: 100%; }
.mobile-actions .btn { width: 100%; text-align: center; }

@media (max-width: 992px) {
  .main-nav, .header-actions { display: none; }
  .nav-toggle { display: inline-flex; }
}

.article-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 72px 0 84px;
  color: #fff;
  overflow: hidden;
}
.article-hero::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(125deg, rgba(20,28,50,.78), rgba(20,28,50,.42));
  z-index: 1;
}
.article-hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 70% 30%, rgba(96,165,250,.22) 0 2px, transparent 2px),
    radial-gradient(circle at 20% 65%, rgba(255,255,255,.28) 0 1.5px, transparent 1.5px),
    radial-gradient(circle at 85% 75%, rgba(255,255,255,.16) 0 2px, transparent 2px);
  background-size: 260px 260px;
  z-index: 1;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb-custom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,.72);
  margin-bottom: 34px;
}
.breadcrumb-custom a { color: rgba(255,255,255,.82); }
.breadcrumb-custom a:hover { color: #fff; }
.breadcrumb-custom .sep { color: rgba(255,255,255,.35); }
.breadcrumb-custom .current { color: rgba(255,255,255,.6); max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.article-title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 18px;
  letter-spacing: -0.5px;
  max-width: 820px;
}
.article-lead {
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255,255,255,.86);
  max-width: 780px;
  margin: 0 0 22px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  font-size: 14px;
  color: rgba(255,255,255,.72);
}
.article-meta .meta-item { display: inline-flex; align-items: center; gap: 7px; }
.article-meta .meta-dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--accent);
}
.article-meta .badge-category {
  display: inline-block;
  background: rgba(230,182,74,.18);
  border: 1px solid rgba(230,182,74,.5);
  color: var(--accent-bright);
  font-size: 13px;
  border-radius: 999px;
  padding: 3px 14px;
}
@media (max-width: 768px) {
  .article-hero { padding: 48px 0 64px; }
  .article-title { font-size: 28px; }
  .article-lead { font-size: 15px; -webkit-line-clamp: 4; }
}

.article-wrap { position: relative; z-index: 2; margin-top: -48px; }
.article-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(35,55,99,.05);
  padding: 44px 52px;
  margin-bottom: 20px;
}
.no-article {
  text-align: center;
  padding: 80px 20px;
}
.no-article .no-icon {
  display: flex; align-items: center; justify-content: center;
  width: 76px; height: 76px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
}
.no-article h2 { font-size: 26px; margin-bottom: 12px; }
.no-article p { color: var(--text-weak); margin-bottom: 24px; }
.article-content { font-size: 17px; line-height: 1.85; color: #353535; }
.article-content > *:first-child { margin-top: 0; }
.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  border-left: 4px solid var(--accent);
  padding-left: 14px;
  margin: 42px 0 18px;
  line-height: 1.4;
}
.article-content h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--primary-dark);
  margin: 32px 0 16px;
}
.article-content h4 { font-size: 18px; font-weight: 600; margin: 26px 0 12px; }
.article-content p { margin-bottom: 20px; }
.article-content strong { color: var(--primary-dark); font-weight: 600; }
.article-content a { color: var(--primary); border-bottom: 1px solid rgba(35,55,99,.3); }
.article-content a:hover { color: var(--primary); border-bottom-color: var(--primary); }
.article-content blockquote {
  background: var(--bg-soft);
  border-left: 4px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 18px 22px;
  margin: 26px 0;
  color: #5a5a5a;
  font-size: 16px;
  line-height: 1.75;
}
.article-content blockquote p { margin: 0; }
.article-content img { border-radius: 10px; border-bottom: 2px solid var(--primary); margin: 12px 0 8px; width: 100%; object-fit: cover; }
.article-content figcaption, .article-content .wp-caption-text {
  text-align: center; font-size: 13px; color: var(--text-weak); margin-bottom: 20px;
}
.article-content pre {
  background: var(--primary-dark);
  color: #e8edf8;
  border-radius: 10px;
  padding: 20px 24px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.7;
  margin: 26px 0;
}
.article-content code { font-family: "SFMono-Regular", Consolas, monospace; font-size: 14px; }
.article-content ul, .article-content ol { margin: 0 0 20px 22px; }
.article-content li { margin-bottom: 8px; }
.article-tags { margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--border-color); display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.article-tags .tag-label { font-size: 13px; color: var(--text-weak); margin-right: 4px; }
.article-tags .tag-item {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  border-radius: 999px;
  padding: 4px 14px;
  transition: background .2s, color .2s;
}
.article-tags .tag-item:hover { background: var(--primary); color: #fff; }
.article-back {
  display: flex;
  justify-content: flex-start;
  margin-top: 6px;
}
.article-back a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--primary);
  padding: 10px 22px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: box-shadow .25s, transform .25s;
}
.article-back a:hover { box-shadow: var(--shadow-hover); transform: translateX(-3px); }
@media (max-width: 768px) {
  .article-card { padding: 24px 20px; border-radius: 12px; }
  .article-content { font-size: 16px; line-height: 1.8; }
  .article-content h2 { font-size: 22px; }
  .article-content h3 { font-size: 19px; }
}

.recommend-section { padding: 76px 0 28px; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 30px; }
.section-head h2 { font-size: 30px; font-weight: 700; color: var(--primary-dark); margin: 0; position: relative; }
.section-head h2::after { content: ""; position: absolute; left: 0; bottom: -8px; width: 40px; height: 3px; border-radius: 99px; background: var(--accent); }
.section-head .section-more { font-size: 14px; color: var(--text-weak); display: inline-flex; align-items: center; gap: 6px; }
.section-head .section-more:hover { color: var(--primary); }
.recommend-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: box-shadow .3s, transform .3s, border-color .3s;
}
.recommend-card:hover { border-color: var(--primary-light); box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.recommend-card .rc-cover { position: relative; overflow: hidden; }
.recommend-card .rc-cover img { width: 100%; height: 180px; object-fit: cover; display: block; transition: transform .4s; border-bottom: 2px solid var(--primary); }
.recommend-card:hover .rc-cover img { transform: scale(1.04); }
.rc-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.rc-badge {
  align-self: flex-start;
  background: var(--primary-light); color: var(--primary);
  font-size: 12px; font-weight: 600;
  border-radius: 999px; padding: 4px 12px;
  margin-bottom: 12px;
}
.rc-title { font-size: 17px; font-weight: 600; color: var(--primary-dark); line-height: 1.5; margin-bottom: 8px; }
.recommend-card:hover .rc-title { color: var(--primary); }
.rc-desc { font-size: 14px; color: var(--text-weak); line-height: 1.65; margin-bottom: 16px; flex: 1; }
.rc-link { font-size: 14px; font-weight: 500; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.rc-link:hover { gap: 10px; }
.rc-link svg { transition: none; }
@media (max-width: 768px) {
  .recommend-section { padding: 48px 0 20px; }
  .section-head h2 { font-size: 24px; }
}

.cta-section {
  background: var(--primary-dark);
  position: relative;
  padding: 68px 0;
  color: #fff;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 80% 20%, rgba(230,182,74,.12) 0 220px, transparent 220px),
    radial-gradient(circle at 12% 88%, rgba(96,165,250,.14) 0 160px, transparent 160px);
}
.cta-section .container { position: relative; z-index: 1; }
.cta-box { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.cta-info h2 { font-size: 30px; font-weight: 700; margin-bottom: 14px; line-height: 1.35; }
.cta-info h2 span { color: var(--accent); }
.cta-info > p { color: rgba(255,255,255,.78); line-height: 1.75; margin-bottom: 30px; max-width: 440px; }
.cta-contact-list { display: grid; gap: 16px; margin: 0; padding: 0; list-style: none; }
.cta-contact-list li { display: flex; align-items: center; gap: 12px; font-size: 15px; color: rgba(255,255,255,.82); }
.cta-contact-list svg { width: 18px; height: 18px; stroke: var(--accent); flex-shrink: 0; }
.cta-form-wrap {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 16px;
  padding: 30px;
  backdrop-filter: blur(6px);
}
.cta-form-wrap h3 { font-size: 20px; font-weight: 600; margin-bottom: 18px; }
.cta-form-wrap .form-label { font-size: 14px; color: rgba(255,255,255,.82); margin-bottom: 6px; display: block; }
.cta-form-wrap .form-control {
  width: 100%;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-sm);
  color: #fff;
  padding: 10px 14px;
  height: 44px;
  font-size: 15px;
  transition: border-color .25s, box-shadow .25s, background .25s;
}
.cta-form-wrap .form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(230,182,74,.18);
  background: rgba(255,255,255,.14);
}
.cta-form-wrap .form-control::placeholder { color: rgba(255,255,255,.4); }
.cta-form-wrap textarea.form-control { height: auto; resize: none; }
.cta-form-wrap .btn { width: 100%; min-width: 220px; }
.cta-form-wrap .form-note { font-size: 12px; color: rgba(255,255,255,.45); margin-top: 12px; text-align: center; }
.cta-success {
  display: none;
  text-align: center;
  padding: 28px 0;
  color: rgba(255,255,255,.85);
}
.cta-success.show { display: block; }
@media (max-width: 992px) {
  .cta-box { grid-template-columns: 1fr; gap: 36px; }
  .cta-section { padding: 52px 0; }
}
@media (max-width: 768px) {
  .cta-info h2 { font-size: 24px; }
  .cta-form-wrap { padding: 20px; }
}

.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.78);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1.2fr 0.8fr;
  gap: 42px;
  padding-bottom: 44px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand .brand-text { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.58); max-width: 300px; }
.footer-col h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.footer-col ul a { font-size: 14px; color: rgba(255,255,255,.65); transition: color .2s; }
.footer-col ul a:hover { color: var(--accent); }
.footer-contact li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,.65); }
.footer-contact svg { width: 16px; height: 16px; stroke: rgba(255,255,255,.45); flex-shrink: 0; }
.footer-qr { text-align: center; }
.qr-placeholder {
  width: 108px; height: 108px;
  margin: 0 auto 12px;
  background: #f4f4f2;
  border-radius: 10px;
  position: relative;
  overflow: hidden;
}
.qr-placeholder::before, .qr-placeholder::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 3px;
}
.qr-placeholder::before { width: 62px; height: 8px; left: 23px; top: 16px; box-shadow: 0 16px 0 var(--primary), 0 32px 0 var(--primary), 0 48px 0 var(--primary), 0 64px 0 var(--primary); }
.qr-placeholder::after { width: 8px; height: 62px; left: 50px; top: 8px; box-shadow: -16px 0 0 var(--primary), -32px 0 0 var(--primary), 16px 0 0 var(--primary); }
.footer-qr p { font-size: 13px; color: rgba(255,255,255,.5); margin: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
@media (max-width: 992px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 576px) {
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
:root {
  --main: #233763;
  --main-dark: #1A2542;
  --main-light: #E8EDF8;
  --accent: #E6B64A;
  --accent-hover: #F0C25E;
  --cyan: #60A5FA;
  --bg-soft: #F8F7F4;
  --body: #2C2C2C;
  --muted: #8A8A8A;
  --border: #E9E9E6;
  --card-bg: #FFFFFF;
  --radius: 10px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --shadow-sm: 0 2px 8px rgba(35, 55, 99, 0.03);
  --shadow-md: 0 8px 28px rgba(35, 55, 99, 0.08);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.08);
  --container-w: 1260px;
  --section-space: 72px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
  --font-num: "Inter", "Helvetica Neue", sans-serif;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--body);
  background: var(--bg-soft);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s ease; }
button, input, textarea { font-family: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(35, 55, 99, 0.15); outline-offset: 2px; }

.container { max-width: var(--container-w); }
.row { --bs-gutter-x: 24px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(35, 55, 99, 0.03);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-logo {
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--main-light);
  border-radius: 10px;
}
.brand-text {
  font-size: 19px;
  font-weight: 700;
  color: var(--main);
  letter-spacing: .5px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
}
.main-nav a {
  position: relative;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: #444;
  border-radius: 8px;
  transition: color .2s, background .2s;
}
.main-nav a:hover { color: var(--main); }
.main-nav a.active { color: var(--main); font-weight: 600; }
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 16px; right: 16px; bottom: 0;
  height: 2px;
  background: var(--main);
  border-radius: 2px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 16px;
  background: #F5F5F5;
  border: 1px solid #E4E3DF;
  border-radius: 999px;
  transition: all .2s;
  width: 220px;
  color: var(--muted);
}
.search-box:focus-within {
  border-color: var(--main);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(35, 55, 99, 0.12);
}
.search-box input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 14px;
  outline: none;
  color: var(--body);
}
.search-box input::placeholder { color: #B0B0B0; }
.header-cta {
  height: 38px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  background: var(--main);
  color: #fff;
  border-radius: var(--radius-sm);
  border: none;
  transition: all .2s;
}
.header-cta:hover {
  background: #2C457F;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--main);
  border-radius: 2px;
  transition: all .3s;
}
.site-header.open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.open .nav-toggle span:nth-child(2) { opacity: 0; }
.site-header.open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Page Hero */
.page-hero {
  background: linear-gradient(135deg, #FFFFFF 0%, #F3F5FA 100%);
  border-bottom: 1px solid var(--border);
  padding: 58px 0 50px;
}
.breadcrumb-custom {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 18px;
}
.breadcrumb-custom a { color: var(--muted); }
.breadcrumb-custom a:hover { color: var(--main); }
.breadcrumb-custom .sep { color: #C6C6C6; }
.page-hero h1 {
  font-size: 42px;
  font-weight: 700;
  color: var(--main-dark);
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.page-hero .lead {
  font-size: 16px;
  line-height: 1.85;
  color: #5C5C5C;
  max-width: 880px;
}

/* Banner */
.banner {
  position: relative;
  min-height: 340px;
  background-image: url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  border-bottom: 2px solid var(--main);
  overflow: hidden;
}
.banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(128deg, rgba(20, 28, 50, 0.75), rgba(20, 28, 50, 0.32));
}
.banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 18% 32%, rgba(255,255,255,.8) 0, transparent 100%),
    radial-gradient(1px 1px at 68% 18%, rgba(255,255,255,.6) 0, transparent 100%),
    radial-gradient(2px 2px at 42% 68%, rgba(255,255,255,.5) 0, transparent 100%),
    radial-gradient(1px 1px at 84% 58%, rgba(255,255,255,.7) 0, transparent 100%),
    radial-gradient(1px 1px at 30% 82%, rgba(255,255,255,.45) 0, transparent 100%);
  pointer-events: none;
}
.banner .container { position: relative; z-index: 2; }
.banner h2 {
  color: #fff;
  font-size: 30px;
  font-weight: 700;
  max-width: 640px;
  line-height: 1.4;
  margin-bottom: 12px;
}
.banner p {
  color: rgba(255, 255, 255, .86);
  max-width: 560px;
  font-size: 16px;
  line-height: 1.8;
}

/* Split Section */
.split-section {
  padding: var(--section-space) 0;
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.split-section.alt { background: var(--bg-soft); }
.split-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  min-height: 300px;
}
.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.split-media:hover img { transform: scale(1.03); }
.media-tag {
  position: absolute;
  left: 16px; bottom: 16px;
  background: rgba(255, 255, 255, .92);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--main);
  box-shadow: 0 4px 12px rgba(0, 0, 0, .1);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--main);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.split-content h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--main-dark);
  line-height: 1.32;
  margin-bottom: 18px;
}
.split-content p {
  font-size: 16px;
  line-height: 1.85;
  color: #555;
  margin-bottom: 14px;
}
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}
.tag-list span {
  background: var(--main-light);
  color: var(--main);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
}

/* Resources */
.resources-section {
  padding: var(--section-space) 0;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--main-dark);
  margin-bottom: 6px;
}
.section-head p {
  color: var(--muted);
  font-size: 15px;
  max-width: 560px;
}
.resource-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .3s, box-shadow .3s, border-color .3s;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.resource-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--main-light);
}
.resource-thumb {
  position: relative;
  height: 190px;
  overflow: hidden;
}
.resource-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .45s;
}
.resource-card:hover .resource-thumb img { transform: scale(1.05); }
.resource-thumb .thumb-tag {
  position: absolute;
  top: 14px; left: 14px;
  background: rgba(26, 37, 66, .82);
  color: #fff;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}
.resource-body {
  padding: 24px 26px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.resource-body h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--main-dark);
  margin-bottom: 10px;
}
.resource-body p {
  font-size: 14px;
  color: #6A6A6A;
  line-height: 1.72;
  margin-bottom: 16px;
}
.resource-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--main);
}
.resource-link svg { transition: transform .2s; }
.resource-link:hover svg { transform: translateX(4px); }

/* FAQ */
.faq-section {
  padding: var(--section-space) 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.faq-wrap {
  max-width: 880px;
  margin: 0 auto;
}
.accordion-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius) !important;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.accordion-button {
  font-size: 16px;
  font-weight: 600;
  color: var(--main-dark);
  background: #fff;
  padding: 18px 24px;
  border: none;
  box-shadow: none !important;
  border-left: 2px solid transparent;
  transition: all .25s;
}
.accordion-button:not(.collapsed) {
  color: var(--main);
  background: #FBFBFA;
  border-left-color: var(--main);
}
.accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(35, 55, 99, 0.12) !important;
}
.accordion-body {
  padding: 16px 24px 22px;
  font-size: 15px;
  line-height: 1.78;
  color: #5C5C5C;
  border-top: 1px solid #F0EFEA;
}
.accordion-button::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23233763'%3E%3Cpath d='M8 2a1 1 0 0 1 1 1v4h4a1 1 0 1 1 0 2H9v4a1 1 0 1 1-2 0V9H3a1 1 0 1 1 0-2h4V3a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
  background-size: 16px;
  width: 18px; height: 18px;
}
.accordion-button:not(.collapsed)::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23233763'%3E%3Cpath d='M3 8a1 1 0 0 1 1-1h8a1 1 0 1 1 0 2H4a1 1 0 0 1-1-1z'/%3E%3C/svg%3E");
}

/* CTA */
.cta-section {
  background: linear-gradient(120deg, var(--main-dark), var(--main));
  padding: 66px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(230, 182, 74, .22), transparent 70%);
  top: -190px; right: -140px;
}
.cta-section::after {
  content: "";
  position: absolute;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(96, 165, 250, .16), transparent 70%);
  bottom: -140px; left: -80px;
}
.cta-box {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}
.cta-box .eyebrow {
  color: var(--accent);
  justify-content: center;
}
.cta-box .eyebrow::before { background: var(--accent); }
.cta-box h2 {
  color: #fff;
  font-size: 34px;
  font-weight: 700;
  margin-bottom: 14px;
  line-height: 1.35;
}
.cta-box p {
  color: rgba(255, 255, 255, .86);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 30px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  transition: all .22s ease;
  cursor: pointer;
}
.btn-accent {
  background: var(--accent);
  color: #1E2A45;
}
.btn-accent:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  color: #1E2A45;
  box-shadow: 0 10px 24px rgba(230, 182, 74, .35);
}
.btn-outline-light {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .7);
  color: #fff;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, .1);
  color: #fff;
  border-color: #fff;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  background: var(--main-dark);
  color: rgba(255, 255, 255, .72);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.4fr 1fr;
  gap: 40px;
  padding-bottom: 42px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand .brand-text { color: #fff; }
.footer-brand p {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255, 255, 255, .58);
  max-width: 330px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col li {
  margin-bottom: 10px;
  font-size: 14px;
}
.footer-col a {
  color: rgba(255, 255, 255, .65);
  transition: color .2s;
}
.footer-col a:hover { color: var(--accent); }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, .65);
}
.footer-contact svg {
  width: 16px; height: 16px;
  flex-shrink: 0;
}
.footer-qr { text-align: center; }
.qr-placeholder {
  width: 120px; height: 120px;
  margin: 0 auto 12px;
  border: 2px solid rgba(255, 255, 255, .2);
  border-radius: 12px;
  background: repeating-conic-gradient(rgba(255,255,255,.16) 0% 25%, transparent 0% 50%) 50% / 14px 14px;
}
.footer-qr p {
  font-size: 13px;
  color: rgba(255, 255, 255, .55);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, .45);
}

/* Responsive */
@media (max-width: 991.98px) {
  .sub-holder { display: block; }
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    min-height: 64px;
    padding: 8px 0 8px;
  }
  .main-nav {
    display: none;
    flex: 0 0 100%;
    order: 3;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 0 4px;
  }
  .header-actions {
    display: none;
    flex: 0 0 100%;
    order: 4;
    padding: 8px 0 14px;
  }
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }
  .site-header.open .main-nav,
  .site-header.open .header-actions {
    display: flex;
  }
  .main-nav { gap: 0; margin-left: 0; }
  .main-nav a {
    padding: 12px 4px;
    border-bottom: 1px solid #F0EFEA;
    border-radius: 0;
  }
  .main-nav a.active { background: var(--main-light); }
  .main-nav a.active::after { display: none; }
  .header-actions { flex-direction: row; }
  .search-box { flex: 1; width: auto; }
  .page-hero h1 { font-size: 30px; }
  .banner h2 { font-size: 24px; }
  .split-section { --section-space: 48px; }
  .split-content h2 { font-size: 26px; }
  .split-media { min-height: 220px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 10px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-box h2 { font-size: 28px; }
}

@media (max-width: 575.98px) {
  .container { padding-left: 20px; padding-right: 20px; }
  .brand-text { font-size: 17px; }
  .page-hero { padding: 40px 0 36px; }
  .page-hero h1 { font-size: 26px; }
  .page-hero .lead { font-size: 15px; }
  .banner { min-height: 260px; }
  .banner h2 { font-size: 21px; }
  .banner p { font-size: 14px; }
  .split-media { min-height: 190px; }
  .split-content p { font-size: 15px; }
  .resource-body { padding: 20px 20px 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .header-actions { flex-direction: column; align-items: stretch; }
  .header-cta { justify-content: center; }
}

/* roulang page: category2 */
:root {
            --primary: #233763;
            --primary-dark: #1A2542;
            --primary-light: #E8EDF8;
            --accent: #E6B64A;
            --accent-hover: #F0C25E;
            --cyan: #60A5FA;
            --bg-warm: #F8F7F4;
            --bg-white: #FFFFFF;
            --text-main: #2C2C2C;
            --text-weak: #8A8A8A;
            --border-light: #E9E9E6;
            --border-input: #D8D8D8;
            --radius-card: 10px;
            --radius-input: 6px;
            --radius-badge: 999px;
            --shadow-card: 0 2px 8px rgba(35, 55, 99, 0.03);
            --shadow-hover: 0 8px 28px rgba(35, 55, 99, 0.08);
            --nav-height: 72px;
            --space-section: 88px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
            color: var(--text-main);
            background: var(--bg-warm);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        .container {
            max-width: 1260px;
        }

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

        a {
            text-decoration: none;
            color: var(--primary);
        }

        .btn {
            border-radius: 8px;
            padding: 10px 24px;
            font-weight: 500;
            border: 1px solid transparent;
            transition: background .25s ease, border-color .25s ease, transform .25s ease, box-shadow .25s ease;
        }

        .btn:focus,
        .btn-ghost:focus,
        .form-control:focus,
        .search-box input:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(35, 55, 99, .15);
        }

        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            padding: 10px 24px;
        }

        .btn-primary:hover {
            background: #2C457F;
            border-color: #2C457F;
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-ghost-white {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .7);
            color: #fff;
            padding: 10px 28px;
        }

        .btn-ghost-white:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            color: #fff;
        }

        .btn-accent {
            background: var(--accent);
            border-color: var(--accent);
            color: #1E2A45;
            font-weight: 600;
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #1E2A45;
            transform: translateY(-1px);
        }

        .btn-outline-primary {
            background: #fff;
            border-color: #D1D5DC;
            color: var(--primary);
        }

        .btn-outline-primary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: #fff;
            height: var(--nav-height);
            box-shadow: 0 2px 12px rgba(35, 55, 99, .06);
            border-bottom: 1px solid var(--border-light);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 20px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary-light);
        }

        .brand-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: #444;
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: color .2s, border-color .2s;
            line-height: 1.2;
        }

        .main-nav a:hover {
            color: var(--primary);
            border-bottom-color: var(--accent);
        }

        .main-nav a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #F5F5F5;
            border: 1px solid #E4E3DF;
            border-radius: 999px;
            padding: 0 14px;
            height: 36px;
            width: 210px;
            transition: background .2s, border-color .2s, box-shadow .2s;
        }

        .search-box svg {
            color: #999;
            flex-shrink: 0;
        }

        .search-box input {
            border: none;
            background: transparent;
            font-size: 13px;
            width: 100%;
            color: var(--text-main);
        }

        .search-box input::placeholder {
            color: #9a9a9a;
        }

        .search-box:focus-within {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(35, 55, 99, .1);
        }

        .header-cta {
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0 20px;
            font-size: 14px;
            white-space: nowrap;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: .3s;
        }

        /* Page intro */
        .page-intro {
            padding: calc(var(--nav-height) + 56px) 0 40px;
            background: linear-gradient(135deg, #f0f3f9, #faf9f6);
            border-bottom: 1px solid #f0efea;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #999;
            margin-bottom: 18px;
        }

        .breadcrumb-custom a {
            color: #777;
            transition: color .2s;
        }

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

        .breadcrumb-custom .sep {
            color: #ccc;
        }

        .page-intro h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--primary-dark);
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .page-intro .lead-text {
            font-size: 16px;
            line-height: 1.8;
            color: #555;
            max-width: 620px;
        }

        .banner-image {
            margin-top: 36px;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border-bottom: 3px solid var(--accent);
            min-height: 380px;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            position: relative;
            display: flex;
            align-items: flex-end;
        }

        .banner-image::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(26, 37, 66, .6));
            pointer-events: none;
            border-radius: 14px;
        }

        .banner-tag {
            position: absolute;
            top: 20px;
            left: 20px;
            z-index: 3;
            background: var(--accent);
            color: #1E2A45;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 999px;
            letter-spacing: .5px;
        }

        .banner-caption {
            position: relative;
            z-index: 2;
            padding: 24px 28px;
            color: #fff;
            font-size: 15px;
            line-height: 1.7;
            max-width: 560px;
            text-shadow: 0 1px 4px rgba(0, 0, 0, .3);
        }

        /* Section generic */
        .section {
            padding: var(--space-section) 0;
        }

        .section-alt {
            background: #fff;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head .kicker {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
            letter-spacing: .3px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.25;
            margin-bottom: 10px;
        }

        .section-head p {
            color: var(--text-weak);
            font-size: 15px;
            max-width: 560px;
        }

        /* Split feature 1 */
        .split-feature {
            display: flex;
            align-items: center;
            gap: 56px;
        }

        .split-text {
            flex: 1;
        }

        .split-text .tag {
            display: inline-block;
            background: rgba(230, 182, 74, .16);
            color: #8a6d1f;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .split-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .split-text p {
            color: #555;
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 10px;
        }

        .split-feature-list {
            list-style: none;
            padding: 0;
            margin: 18px 0 0;
        }

        .split-feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: #444;
            margin-bottom: 10px;
            line-height: 1.6;
        }

        .split-feature-list li svg {
            flex-shrink: 0;
            margin-top: 3px;
        }

        .split-visual {
            flex: 1;
            position: relative;
        }

        .split-visual .img-wrap {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border-bottom: 3px solid var(--accent);
            min-height: 320px;
            background: url('/assets/images/coverpic/cover-3.webp') center/cover no-repeat;
        }

        .split-visual .img-caption {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 10px;
            text-align: center;
            letter-spacing: .3px;
        }

        /* Stats band */
        .stats-band {
            background: var(--primary-dark);
            border-radius: 14px;
            padding: 40px 48px;
            margin-top: 40px;
            position: relative;
            overflow: hidden;
        }

        .stats-band::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(96, 165, 250, .22), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
            z-index: 2;
        }

        .stats-item {
            text-align: center;
            padding: 8px 0;
        }

        .stats-item .num {
            font-size: 46px;
            font-weight: 700;
            color: #fff;
            font-family: Inter, "Helvetica Neue", sans-serif;
            line-height: 1.2;
            letter-spacing: 1px;
        }

        .stats-item .num span {
            font-size: 18px;
            color: var(--accent);
            margin-left: 2px;
        }

        .stats-item .label {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            margin-top: 4px;
        }

        /* Design cards (feature grid) */
        .design-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
        }

        .design-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: box-shadow .25s, transform .25s, border-color .25s;
            min-height: 200px;
        }

        .design-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .design-card .card-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            background: rgba(230, 182, 74, .16);
            transition: background .25s;
        }

        .design-card:hover .card-icon {
            background: var(--primary-light);
        }

        .design-card h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .design-card p {
            font-size: 14px;
            color: #555;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .design-card-wide {
            grid-column: span 2;
        }

        /* Full-width text band */
        .full-band {
            background: var(--primary-light);
            border-radius: 14px;
            padding: 44px 56px;
            margin-top: 40px;
            position: relative;
        }

        .full-band h3 {
            font-size: 24px;
            color: var(--primary-dark);
            margin-bottom: 14px;
            font-weight: 700;
        }

        .full-band p {
            color: #3f4b63;
            line-height: 1.8;
            font-size: 15px;
            max-width: 720px;
        }

        /* Cases */
        .case-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow .25s, transform .25s;
            height: 100%;
        }

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

        .case-cover {
            min-height: 180px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            border-bottom: 2px solid var(--accent);
        }

        .case-cover.case-1 {
            background-image: url('/assets/images/coverpic/cover-5.png');
        }

        .case-cover.case-2 {
            background-image: url('/assets/images/coverpic/cover-1.png');
        }

        .case-cover.case-3 {
            background-image: url('/assets/images/coverpic/cover-10.png');
        }

        .case-cover .case-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(35, 55, 99, .85);
            color: #fff;
            font-size: 12px;
            padding: 4px 14px;
            border-radius: 999px;
            backdrop-filter: blur(4px);
        }

        .case-body {
            padding: 22px 24px 24px;
        }

        .case-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }

        .case-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .case-body .case-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #aaa;
            border-top: 1px solid #f3f2ee;
            padding-top: 12px;
            margin-top: 4px;
        }

        .case-body .case-meta a {
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Workflow */
        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 40px;
        }

        .step-item {
            position: relative;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 30px 24px 24px;
            box-shadow: var(--shadow-card);
            transition: transform .25s, box-shadow .25s;
        }

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

        .step-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            background: rgba(230, 182, 74, .15);
            display: inline-block;
            padding: 2px 12px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .step-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        .step-arrow {
            position: absolute;
            top: 50%;
            right: -20px;
            transform: translateY(-50%);
            z-index: 3;
            color: #c9d4e5;
        }

        /* FAQ */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow .25s;
        }

        .faq-item.open {
            box-shadow: var(--shadow-hover);
            border-left: 3px solid var(--primary);
        }

        .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 20px 28px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            transition: color .2s;
        }

        .faq-q:hover {
            color: var(--primary);
        }

        .faq-toggle {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            color: var(--primary);
            font-size: 16px;
            transition: transform .3s, background .3s;
        }

        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
            background: var(--primary-light);
            border-color: var(--primary-light);
        }

        .faq-a {
            padding: 0 28px 20px;
            color: #555;
            font-size: 14px;
            line-height: 1.75;
            display: none;
        }

        .faq-item.open .faq-a {
            display: block;
        }

        /* CTA */
        .cta-band {
            background: linear-gradient(120deg, var(--primary-dark), #27406b);
            border-radius: 16px;
            padding: 48px 56px;
            color: #fff;
            margin: 20px 0;
        }

        .cta-band h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cta-band p {
            color: rgba(255, 255, 255, .7);
            font-size: 15px;
            max-width: 540px;
            margin-bottom: 24px;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* Contact form */
        .contact-row {
            background: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow-hover);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .contact-info-panel {
            background: var(--primary-dark);
            color: #fff;
            padding: 48px;
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .contact-info-panel::after {
            content: '';
            position: absolute;
            bottom: -50px;
            right: -50px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(96, 165, 250, .14);
        }

        .contact-info-panel h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .contact-info-panel>p {
            color: rgba(255, 255, 255, .65);
            font-size: 15px;
            margin-bottom: 30px;
            border-left: 3px solid var(--accent);
            padding-left: 16px;
        }

        .contact-info-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-bottom: 20px;
        }

        .contact-info-item .ico {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .contact-info-item .txt {
            font-size: 14px;
            color: rgba(255, 255, 255, .88);
            line-height: 1.6;
        }

        .contact-info-item .lbl {
            font-size: 12px;
            color: rgba(255, 255, 255, .45);
            text-transform: uppercase;
            display: block;
            margin-bottom: 2px;
        }

        .contact-form-panel {
            padding: 48px;
        }

        .contact-form-panel h3 {
            font-size: 22px;
            color: var(--primary-dark);
            margin-bottom: 8px;
            font-weight: 700;
        }

        .contact-form-panel .sub {
            color: var(--text-weak);
            font-size: 14px;
            margin-bottom: 28px;
        }

        .form-label {
            font-size: 14px;
            font-weight: 500;
            color: #333;
            margin-bottom: 6px;
        }

        .form-control {
            border-radius: var(--radius-input);
            border: 1px solid var(--border-input);
            padding: 10px 14px;
            font-size: 15px;
            color: var(--text-main);
            height: 44px;
            transition: border-color .2s, box-shadow .2s;
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(35, 55, 99, .12);
            color: var(--text-main);
        }

        textarea.form-control {
            height: 120px;
            resize: none;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .75);
            padding: 64px 0 0;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-brand .brand-text {
            color: #fff;
            font-size: 18px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            line-height: 1.7;
            margin-top: 14px;
            max-width: 280px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul a {
            color: rgba(255, 255, 255, .55);
            font-size: 14px;
            transition: color .2s;
        }

        .footer-col ul a:hover {
            color: var(--accent);
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            margin-bottom: 12px;
        }

        .footer-contact svg {
            flex-shrink: 0;
        }

        .footer-qr {
            text-align: center;
        }

        .qr-placeholder {
            width: 88px;
            height: 88px;
            border-radius: 8px;
            background: rgba(255, 255, 255, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 8px;
            border: 1px solid rgba(255, 255, 255, .12);
            position: relative;
        }

        .qr-placeholder::after {
            content: '';
            width: 40px;
            height: 40px;
            background:
                linear-gradient(90deg, rgba(255, 255, 255, .35) 25%, transparent 25%) 0 0/8px 8px,
                linear-gradient(rgba(255, 255, 255, .35) 25%, transparent 25%) 0 0/8px 8px;
            border-radius: 2px;
        }

        .footer-qr p {
            font-size: 12px;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            color: rgba(255, 255, 255, .35);
            font-size: 13px;
        }

        .footer-bottom span {
            margin-right: 12px;
        }

        /* Mobile */
        @media (max-width: 992px) {
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 0;
                max-height: 0;
                overflow: hidden;
                transition: max-height .35s ease;
                box-shadow: none;
                border-bottom: 1px solid #f0f0ee;
            }

            .main-nav.open {
                max-height: 360px;
                overflow-y: auto;
            }

            .main-nav a {
                width: 100%;
                padding: 14px 24px;
                border-bottom: 1px solid #f4f4f1;
                font-size: 15px;
            }

            .main-nav a:hover,
            .main-nav a.active {
                background: var(--primary-light);
                color: var(--primary);
            }

            .header-actions {
                margin-left: auto;
            }

            .nav-toggle {
                display: flex;
            }

            .header-actions .search-box {
                display: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 48px;
            }

            .page-intro {
                padding-top: calc(var(--nav-height) + 32px);
            }

            .page-intro h1 {
                font-size: 28px;
            }

            .banner-image {
                min-height: 220px;
            }

            .split-feature {
                flex-direction: column;
                gap: 28px;
            }

            .split-visual .img-wrap {
                min-height: 220px;
            }

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

            .design-card-wide {
                grid-column: span 1;
            }

            .workflow-steps {
                grid-template-columns: 1fr;
            }

            .step-arrow {
                display: none;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .stats-item .num {
                font-size: 34px;
            }

            .full-band {
                padding: 32px 24px;
            }

            .cta-band {
                padding: 36px 28px;
            }

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .contact-info-panel,
            .contact-form-panel {
                padding: 32px 24px;
            }

            .stats-band {
                padding: 28px 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 6px;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .brand-text {
                font-size: 17px;
            }

            .banner-caption {
                padding: 16px 18px;
                font-size: 14px;
            }

            .section-head h2 {
                font-size: 24px;
            }

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

            .case-body {
                padding: 18px;
            }

            .header-inner {
                gap: 8px;
            }

            .header-cta {
                display: none;
            }

            .header-actions .nav-toggle {
                margin-left: auto;
            }

            .faq-q {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-a {
                padding: 0 18px 16px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #233763;
            --primary-dark: #1A2542;
            --primary-light: #E8EDF8;
            --accent: #E6B64A;
            --accent-light: #F0C25E;
            --cyan: #60A5FA;
            --bg: #F8F7F4;
            --card: #FFFFFF;
            --text: #2C2C2C;
            --text-light: #8A8A8A;
            --border: #E9E9E6;
            --radius: 10px;
            --radius-sm: 6px;
            --shadow: 0 2px 8px rgba(35, 55, 99, 0.03);
            --shadow-hover: 0 8px 28px rgba(35, 55, 99, 0.08);
            --transition: 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1260px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-space {
            padding: 80px 0;
        }

        .section-head {
            text-align: center;
            max-width: 780px;
            margin: 0 auto 48px;
        }

        .section-head .section-eyebrow {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.4px;
            margin-bottom: 14px;
        }

        .section-head .section-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--primary-dark);
            margin: 0 0 12px;
        }

        .section-head .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.25;
        }

        /* ========== Buttons ========== */
        .btn {
            border-radius: 8px;
            padding: 10px 26px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            border: 1px solid transparent;
            transition: all 0.25s ease;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff !important;
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: #2C457F;
            border-color: #2C457F;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(35, 55, 99, 0.18);
        }

        .btn-accent {
            background: var(--accent);
            color: #1E2A45 !important;
            border-color: var(--accent);
        }

        .btn-accent:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(230, 182, 74, 0.35);
        }

        .btn-outline-light-custom {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.65);
        }

        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
        }

        .btn:focus,
        .btn:focus-visible,
        .form-control:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(35, 55, 99, 0.15);
        }

        /* ========== Form controls ========== */
        .form-control {
            height: 44px;
            border-radius: var(--radius-sm);
            border: 1px solid #D8D8D8;
            padding: 0 14px;
            font-size: 15px;
            background: #fff;
            transition: border-color 0.25s, box-shadow 0.25s;
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(35, 55, 99, 0.12);
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(35, 55, 99, 0.03);
        }

        .header-inner {
            display: flex;
            align-items: center;
            gap: 40px;
            height: 72px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-logo {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin-left: auto;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: #4a4a4a;
            padding: 8px 0;
            border-bottom: 2px solid transparent;
            transition: color 0.25s, border-color 0.25s;
            white-space: nowrap;
        }

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

        .main-nav a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            height: 36px;
            padding: 0 16px;
            border-radius: 999px;
            background: #F5F5F5;
            border: 1px solid #E4E3DF;
            color: var(--text-light);
            transition: background 0.25s, border-color 0.25s, box-shadow 0.25s;
        }

        .search-box:focus-within {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(35, 55, 99, 0.12);
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            width: 140px;
            color: var(--text);
        }

        .search-box input::placeholder {
            color: #A5A5A5;
        }

        .header-cta {
            height: 38px;
            display: inline-flex;
            align-items: center;
            border-radius: 999px;
            padding: 0 22px;
            font-size: 14px;
            font-weight: 600;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: 8px;
            transition: background 0.25s;
        }

        .nav-toggle span {
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform 0.3s, opacity 0.3s;
        }

        .nav-toggle:hover {
            background: var(--primary-light);
        }

        /* ========== Page Title ========== */
        .page-title {
            background: linear-gradient(180deg, #F8F7F4 0%, #FFFFFF 100%);
            padding: 56px 0 36px;
            border-bottom: 1px solid #EFEFEB;
        }

        .page-title .breadcrumb {
            margin-bottom: 24px;
            font-size: 14px;
            background: transparent;
        }

        .page-title .breadcrumb-item a {
            color: var(--text-light);
        }

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

        .page-title .breadcrumb-item.active {
            color: var(--primary);
            font-weight: 500;
        }

        .page-title .breadcrumb-item+.breadcrumb-item::before {
            content: "·";
            color: #C5C5C5;
            padding: 0 8px;
        }

        .page-title h1 {
            font-size: 42px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.2;
            margin: 0 0 16px;
            letter-spacing: -0.5px;
        }

        .page-title .lead-text {
            font-size: 17px;
            color: #5C5C5C;
            line-height: 1.8;
            max-width: 780px;
            margin: 0;
        }

        /* ========== Banner ========== */
        .page-banner {
            position: relative;
            height: 360px;
            border-radius: 16px;
            overflow: hidden;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            margin: 56px 24px 0;
            max-width: 1212px;
            margin-left: auto;
            margin-right: auto;
            box-shadow: 0 12px 36px rgba(20, 28, 50, 0.16);
        }

        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(20, 28, 50, 0.82) 0%, rgba(20, 28, 50, 0.45) 60%, rgba(20, 28, 50, 0.18) 100%);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 48px;
            color: #fff;
        }

        .banner-content .banner-tag {
            display: inline-block;
            align-self: flex-start;
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.28);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.4px;
            margin-bottom: 18px;
            color: rgba(255, 255, 255, 0.92);
        }

        .banner-content h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            margin: 0 0 14px;
        }

        .banner-content p {
            font-size: 16px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            max-width: 500px;
        }

        /* ========== Knowledge Grid ========== */
        .knowledge-section {
            background: #fff;
            padding: 80px 0 90px;
        }

        .knowledge-grid .row {
            margin-bottom: 36px;
        }

        .knowledge-grid .row:last-child {
            margin-bottom: 0;
        }

        .knowledge-card {
            height: 100%;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 32px 28px;
            box-shadow: var(--shadow);
            transition: transform 0.28s, box-shadow 0.28s, border-color 0.28s;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .knowledge-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(180deg, var(--accent), var(--primary));
            opacity: 0;
            transition: opacity 0.3s;
        }

        .knowledge-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }

        .knowledge-card:hover::before {
            opacity: 1;
        }

        .knowledge-card .card-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #F6F0E0;
            color: var(--accent);
            margin-bottom: 18px;
            transition: background 0.3s, color 0.3s;
        }

        .knowledge-card:hover .card-icon {
            background: var(--primary-light);
            color: var(--primary);
        }

        .knowledge-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 10px;
            line-height: 1.3;
        }

        .knowledge-card p {
            font-size: 15px;
            color: #5C5C5C;
            line-height: 1.75;
            margin: 0 0 16px;
            flex-grow: 1;
        }

        .knowledge-card .card-tag {
            font-size: 13px;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .knowledge-card .card-tag svg {
            transition: transform 0.25s;
        }

        .knowledge-card:hover .card-tag svg {
            transform: translateX(4px);
        }

        .knowledge-grid .col-lg-5,
        .knowledge-grid .col-lg-7 {
            display: flex;
        }

        /* ========== Topic Cards ========== */
        .topic-section {
            background: var(--primary-dark);
            padding: 80px 0 90px;
            position: relative;
            overflow: hidden;
        }

        .topic-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 80% 20%, rgba(96, 165, 250, 0.12) 0%, transparent 50%);
            pointer-events: none;
        }

        .topic-section .section-title {
            color: #fff;
        }

        .topic-section .section-subtitle {
            color: rgba(255, 255, 255, 0.65) !important;
        }

        .topic-section .section-eyebrow {
            background: rgba(230, 182, 74, 0.15) !important;
            color: var(--accent) !important;
            border: 1px solid rgba(230, 182, 74, 0.25);
        }

        .topic-card {
            border-radius: 12px;
            overflow: hidden;
            background: #fff;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }

        .topic-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28);
        }

        .topic-card .topic-thumb {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .topic-card .topic-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .topic-card:hover .topic-thumb img {
            transform: scale(1.05);
        }

        .topic-card .topic-thumb::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 60%;
            background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.25));
        }

        .topic-card .topic-body {
            padding: 20px 22px 24px;
        }

        .topic-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .topic-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        .topic-card .topic-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap 0.25s;
        }

        .topic-card:hover .topic-link {
            gap: 10px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg);
            padding: 80px 0 90px;
        }

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

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: 0 8px 24px rgba(35, 55, 99, 0.08);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 22px 28px;
            font-size: 17px;
            font-weight: 600;
            color: var(--primary-dark);
            background: #fff;
            text-align: left;
            border-left: 3px solid transparent;
            transition: border-color 0.3s, color 0.3s;
        }

        .faq-item.active .faq-question {
            color: var(--primary);
            border-left-color: var(--primary);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.3s, background 0.3s;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer .faq-answer-inner {
            padding: 0 28px 24px 28px;
            border-top: 1px solid #F0EFEA;
            margin: 0 28px 0 0;
        }

        .faq-answer p {
            font-size: 15px;
            line-height: 1.75;
            color: #5C5C5C;
            margin: 16px 0 0;
            padding-top: 16px;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #E8EDF8 0%, #F8F1E4 100%);
        }

        .cta-box {
            background: #fff;
            border-radius: 16px;
            padding: 48px 56px;
            border: 1px solid #EFEFEA;
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }

        .cta-box .cta-left {
            flex: 1 1 380px;
        }

        .cta-box .cta-right {
            flex: 0 1 360px;
        }

        .cta-box .cta-eyebrow {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .cta-box h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 14px;
            line-height: 1.3;
        }

        .cta-box p {
            font-size: 16px;
            color: #5C5C5C;
            line-height: 1.8;
            margin: 0;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cta-form .form-control {
            width: 100%;
        }

        .cta-form .btn {
            margin-top: 4px;
        }

        .cta-form .cta-success {
            font-size: 14px;
            color: #2F9E44;
            background: #E6F7EA;
            border-radius: 8px;
            padding: 12px 16px;
            text-align: center;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 0;
            font-size: 14px;
        }

        .site-footer .brand-text {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
        }

        .site-footer .brand-logo {
            background: var(--accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 0.9fr 1.1fr 0.9fr;
            gap: 48px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 18px;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            color: #fff;
            font-weight: 600;
            margin: 0 0 20px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.6;
            transition: color 0.25s, padding-left 0.25s;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            margin-bottom: 14px;
        }

        .footer-contact li svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            margin-top: 3px;
            color: var(--accent);
        }

        .footer-qr {
            text-align: center;
        }

        .qr-placeholder {
            width: 112px;
            height: 112px;
            background: #fff;
            border-radius: 10px;
            margin: 0 auto 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 12px;
            background-image: linear-gradient(rgba(35, 55, 99, 0.1) 1px, transparent 1px), linear-gradient(90deg, rgba(35, 55, 99, 0.1) 1px, transparent 1px);
            background-size: 18px 18px;
            position: relative;
            overflow: hidden;
        }

        .qr-placeholder::after {
            content: "星空·网页版";
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: #fff;
            padding: 4px 8px;
            border-radius: 4px;
        }

        .footer-qr p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin: 0;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding: 22px 0;
            color: rgba(255, 255, 255, 0.4);
            font-size: 13px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1200px) {
            .main-nav {
                gap: 24px;
            }

            .header-inner {
                gap: 24px;
            }

            .search-box input {
                width: 110px;
            }

            .footer-grid {
                grid-template-columns: 1.4fr 0.9fr 1fr 0.8fr;
                gap: 32px;
            }
        }

        @media (max-width: 1024px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .page-banner {
                margin-left: 20px;
                margin-right: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }

            .cta-box {
                padding: 36px 32px;
            }
        }

        @media (max-width: 992px) {
            .nav-toggle {
                display: flex;
                margin-left: auto;
            }

            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 24px 20px;
                box-shadow: 0 16px 30px rgba(0, 0, 0, 0.08);
                display: none;
                margin: 0;
                z-index: 1040;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                font-size: 16px;
                width: 100%;
                padding: 12px 4px;
                border-bottom: 1px solid #F2F2EF;
            }

            .main-nav a.active {
                border-bottom-color: var(--primary);
            }

            .header-actions {
                position: fixed;
                top: auto;
                left: 0;
                right: 0;
                background: #fff;
                padding: 12px 20px 20px;
                box-shadow: 0 16px 30px rgba(0, 0, 0, 0.08);
                display: none;
                z-index: 1039;
            }

            .header-actions.open {
                display: flex;
                flex-wrap: wrap;
            }

            .search-box {
                flex: 1 1 auto;
            }

            .search-box input {
                width: 100%;
            }
        }

        @media (max-width: 768px) {
            .section-space {
                padding: 48px 0;
            }

            .section-head .section-title {
                font-size: 26px;
            }

            .page-title h1 {
                font-size: 30px;
            }

            .page-title .lead-text {
                font-size: 15px;
            }

            .page-banner {
                height: 320px;
                margin: 36px 16px 0;
            }

            .banner-content {
                padding: 32px 24px;
            }

            .banner-content h2 {
                font-size: 24px;
            }

            .banner-content p {
                font-size: 14px;
            }

            .knowledge-section {
                padding: 48px 0 56px;
            }

            .knowledge-grid .row {
                margin-bottom: 0;
            }

            .knowledge-grid .col-lg-5,
            .knowledge-grid .col-lg-7 {
                margin-bottom: 20px;
            }

            .topic-section,
            .faq-section {
                padding: 48px 0 56px;
            }

            .topic-card {
                margin-bottom: 20px;
            }

            .faq-question {
                font-size: 15px;
                padding: 18px 20px;
            }

            .faq-answer .faq-answer-inner {
                padding: 0 20px 20px;
                margin: 0;
            }

            .cta-section {
                padding: 48px 0;
            }

            .cta-box {
                padding: 28px 20px;
                gap: 28px;
            }

            .cta-box h2 {
                font-size: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 36px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .page-title {
                padding-top: 36px;
            }

            .page-title h1 {
                font-size: 26px;
            }

            .page-banner {
                height: 280px;
                border-radius: 12px;
                margin-left: 16px;
                margin-right: 16px;
            }

            .banner-content {
                padding: 24px 18px;
            }

            .btn {
                width: 100%;
                text-align: center;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .header-cta {
                width: auto;
            }
        }

        /* ========== Bootstrap overrides ========== */
        .btn-primary {
            --bs-btn-color: #fff;
            --bs-btn-bg: var(--primary);
            --bs-btn-border-color: var(--primary);
            --bs-btn-hover-color: #fff;
            --bs-btn-hover-bg: #2C457F;
            --bs-btn-hover-border-color: #2C457F;
            --bs-btn-active-color: #fff;
            --bs-btn-active-bg: var(--primary-dark);
            --bs-btn-active-border-color: var(--primary-dark);
            --bs-btn-disabled-bg: #A5B0C8;
            --bs-btn-disabled-border-color: #A5B0C8;
        }

        .card {
            border-radius: 12px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

        .navbar {
            background: #fff;
        }

        .breadcrumb {
            padding: 0;
            margin: 0;
        }

        .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary);
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(35, 55, 99, 0.15);
        }