/* roulang page: index */
:root{
  --primary:#2563EB;
  --primary-dark:#1D4ED8;
  --primary-light:#EFF6FF;
  --primary-border:#DBEAFE;
  --accent:#D97706;
  --success:#10B981;
  --danger:#EF4444;
  --bg:#F8FAFC;
  --card-bg:#FFFFFF;
  --text:#0F172A;
  --text-secondary:#475569;
  --text-muted:#94A3B8;
  --border:#E2E8F0;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-xl:24px;
  --shadow-sm:0 1px 3px rgba(15,23,42,0.06);
  --shadow-md:0 4px 12px rgba(15,23,42,0.08);
  --shadow-lg:0 12px 24px rgba(37,99,235,0.10);
  --font-family:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  padding-bottom:80px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:color .2s}
button{font-family:inherit;border:none;background:none;cursor:pointer}
input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.container{padding:0 16px}}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,0.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(226,232,240,0.7);
  height:72px;
  transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:var(--shadow-md)}
.nav-wrap{display:flex;align-items:center;height:72px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{
  width:36px;height:36px;border-radius:10px;
  background:var(--primary);
  color:#fff;font-size:18px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.logo-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.01em}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:8px 14px;
  font-size:14px;font-weight:500;
  color:var(--text-secondary);
  border-radius:var(--radius-sm);
  transition:color .2s, background .2s;
}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:0;
  height:2px;background:var(--primary);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:200px;height:38px;
  background:#F1F5F9;
  border:1px solid transparent;
  border-radius:var(--radius-sm);
  padding:0 10px;
  transition:width .2s,border-color .2s,box-shadow .2s;
}
.search-box:focus-within{width:220px;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.15);background:#fff}
.search-box input{flex:1;border:none;outline:none;background:transparent;font-size:13px;color:var(--text)}
.search-box input::placeholder{color:#94A3B8}
.search-box .kbd{
  font-size:11px;color:var(--text-muted);
  background:#fff;border:1px solid var(--border);
  border-radius:4px;padding:1px 5px;line-height:1.4;
}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-secondary);background:transparent;
  transition:background .2s,color .2s;
}
.icon-btn:hover{background:var(--primary-light);color:var(--primary)}
.hamburger{display:none;width:40px;height:40px;border-radius:8px;align-items:center;justify-content:center;color:var(--text-secondary)}
.hamburger:hover{background:var(--primary-light)}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  font-size:14px;font-weight:600;
  padding:10px 20px;border-radius:var(--radius-sm);
  transition:all .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:translateY(0);background:#1E40AF}
.btn-outline{background:#fff;color:var(--text);border:1px solid #CBD5E1}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-lg{height:48px;padding:0 28px;font-size:15px;border-radius:10px}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:8px}
.btn-white{background:#fff;color:var(--primary);height:48px;padding:0 30px;font-size:15px;font-weight:600;border-radius:10px;box-shadow:0 8px 24px rgba(15,23,42,0.18)}
.btn-white:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(15,23,42,0.22)}
.btn:focus-visible,.nav-link:focus-visible,.icon-btn:focus-visible,.hamburger:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* Badge */
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 14px;border-radius:999px;
  background:var(--primary-light);color:var(--primary);
  border:1px solid var(--primary-border);
}
.badge-accent{background:#FEF3C7;color:#B45309;border-color:#FDE68A}

/* Hero */
.hero{
  background:var(--primary-light);
  min-height:560px;
  display:flex;align-items:center;
  padding:80px 0 72px;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;right:-120px;top:-120px;
  width:360px;height:360px;border-radius:50%;
  background:rgba(37,99,235,0.05);
}
.hero-grid{display:grid;grid-template-columns:6fr 5fr;gap:64px;align-items:center;position:relative;z-index:1}
.hero h1{
  font-size:clamp(32px,4.5vw,52px);
  font-weight:800;line-height:1.25;color:var(--text);
  letter-spacing:-0.01em;margin:16px 0 20px;
}
.hero-sub{font-size:18px;color:var(--text-secondary);line-height:1.7;max-width:54ch;margin-bottom:32px}
.hero-cta{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hero-note{font-size:14px;color:var(--text-muted);margin-top:20px;display:flex;align-items:center;gap:6px}
.hero-right{position:relative}
.hero-image-wrap{
  position:relative;border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow-lg);
}
.hero-image-wrap img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-float-card{
  position:absolute;bottom:20px;left:-20px;
  background:#fff;border-radius:12px;
  box-shadow:var(--shadow-lg);
  padding:12px 18px;font-size:13px;font-weight:600;
  color:var(--text-secondary);
  display:flex;align-items:center;gap:8px;
}
.float-dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 3px rgba(16,185,129,0.2);animation:pulse-dot 2s infinite}
@keyframes pulse-dot{0%,100%{opacity:1}50%{opacity:0.6}}

/* Trust bar */
.trust-bar{background:var(--bg);border-bottom:1px solid var(--border)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:20px 0}
.trust-item{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--text-secondary);
  justify-content:center;text-align:center;
}
.trust-num{
  font-size:24px;font-weight:800;color:var(--primary);
  font-variant-numeric:tabular-nums;
}

/* Section */
.section{padding:clamp(48px,6vw,96px) 0}
.section-alt{background:linear-gradient(180deg,#F8FAFC 0%,#EFF6FF 100%)}
.section-head{text-align:center;max-width:680px;margin:0 auto 56px}
.section-head .badge{margin-bottom:16px}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.3;color:var(--text);margin-bottom:12px}
.section-head p{font-size:15px;color:var(--text-secondary);line-height:1.7}
.section-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;flex-wrap:wrap;margin-bottom:40px;
}
.section-head-row .badge{margin-bottom:10px}
.section-head-row h2{font-size:28px;font-weight:700;color:var(--text)}
.section-head-row p{font-size:14px;color:var(--text-secondary)}
.link-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:4px;transition:gap .2s}
.link-more:hover{gap:8px}

/* Feature cards */
.icon-card{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
  height:100%;
}
.icon-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.icon-box{
  width:48px;height:48px;border-radius:12px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.icon-card h3{font-size:20px;font-weight:600;color:var(--text);margin-bottom:10px}
.icon-card p{font-size:15px;color:var(--text-secondary);line-height:1.7;margin-bottom:16px}
.card-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:4px}
.card-link:hover{gap:8px}

/* Feature rows */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;
  align-items:center;margin-bottom:80px;
}
.feature-row:last-child{margin-bottom:0}
.feature-row.reverse .feature-text{order:2}
.feature-row.reverse .feature-img{order:1}
.feature-img{
  position:relative;border-radius:24px;overflow:hidden;
  box-shadow:var(--shadow-md);
}
.feature-img img{width:100%;aspect-ratio:16/10;object-fit:cover}
.img-tag{
  position:absolute;bottom:16px;left:16px;
  background:rgba(255,255,255,0.92);
  color:var(--text);font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:8px;
  box-shadow:var(--shadow-sm);
}
.feature-text .badge{margin-bottom:14px}
.feature-text h2{font-size:28px;font-weight:700;color:var(--text);margin-bottom:16px;line-height:1.3}
.feature-text p{font-size:15px;color:var(--text-secondary);line-height:1.75;margin-bottom:20px}
.feature-text .highlight{
  border-left:4px solid var(--primary);
  background:rgba(239,246,255,0.5);
  padding:12px 16px;border-radius:0 8px 8px 0;
  font-size:15px;color:var(--text-secondary);line-height:1.7;margin-bottom:20px;
}
.check-list{list-style:none;padding:0}
.check-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:var(--text-secondary);
  margin-bottom:10px;line-height:1.6;
}
.check-list li svg{flex-shrink:0;margin-top:3px}

/* Path nodes */
.path-grid{display:grid;grid-template-columns:1fr 60px 1fr 60px 1fr;gap:0;align-items:stretch}
.path-node{
  background:var(--card-bg);border:1px solid var(--border);
  border-radius:16px;padding:28px 24px;text-align:center;
  box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s;
  position:relative;
}
.path-node:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.node-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;
  background:var(--primary);color:#fff;
  font-size:15px;font-weight:700;
  margin-bottom:14px;
}
.path-node h3{font-size:18px;font-weight:600;margin-bottom:8px;color:var(--text)}
.path-node p{font-size:14px;color:var(--text-secondary);line-height:1.65}
.path-line{display:flex;align-items:center;justify-content:center}
.path-line::before{
  content:'';width:100%;height:2px;
  background:linear-gradient(90deg,var(--primary-border),var(--primary),var(--primary-border));
  border-radius:2px;
}

/* News */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{
  display:flex;gap:20px;
  background:var(--card-bg);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:16px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.news-thumb{
  flex-shrink:0;width:120px;height:82px;border-radius:8px;overflow:hidden;
  background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;
}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.thumb-placeholder{font-size:22px;font-weight:700;color:var(--primary)}
.news-content{flex:1;min-width:0;display:flex;flex-direction:column}
.news-content h3{margin-bottom:6px}
.news-content h3 a{
  font-size:16px;font-weight:600;color:var(--text);
  display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color .2s;
}
.news-content h3 a:hover{color:var(--primary)}
.news-summary{
  font-size:14px;color:#64748B;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;margin-bottom:10px;
  flex:1;
}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-muted)}
.news-date{white-space:nowrap}
.news-read{margin-left:auto;font-size:13px;font-weight:600;color:var(--primary)}
.news-read:hover{text-decoration:underline}

/* Empty state */
.empty-state{
  grid-column:1/-1;
  border:2px dashed #CBD5E1;border-radius:12px;
  padding:48px 24px;text-align:center;
  color:var(--text-muted);
}
.empty-state svg{width:40px;height:40px;margin:0 auto 12px;color:#CBD5E1}
.empty-state p{font-size:14px}

/* Quote / social */
.quote-block{max-width:760px;margin:0 auto 56px;text-align:center}
.quote-icon{width:44px;height:44px;color:var(--primary);margin:0 auto 20px}
.quote-block blockquote p{
  font-size:clamp(20px,2.5vw,28px);
  font-weight:600;line-height:1.5;color:var(--text);
  margin-bottom:28px;
}
.quote-author{display:flex;align-items:center;justify-content:center;gap:12px}
.quote-avatar{
  width:40px;height:40px;border-radius:50%;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
}
.quote-author .author-name{font-size:14px;font-weight:600;color:var(--text)}
.quote-author .author-title{font-size:13px;color:var(--text-muted)}
.logo-wall{
  display:grid;grid-template-columns:repeat(6,1fr);gap:24px;
  align-items:center;margin:48px 0;
}
.logo-wall-item{
  height:32px;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:var(--text-secondary);
  opacity:0.7;filter:grayscale(1);
  transition:opacity .2s,filter .2s;
}
.logo-wall-item:hover{opacity:1;filter:grayscale(0)}
.stats-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:32px;
  text-align:center;padding:40px 0 0;border-top:1px solid var(--border);
}
.stat-num{font-size:32px;font-weight:800;color:var(--primary);line-height:1.2}
.stat-num.accent{color:var(--accent)}
.stat-label{font-size:14px;color:var(--text-muted);margin-top:6px}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{
  border:1px solid var(--border);border-radius:12px;
  margin-bottom:14px;background:#fff;
  overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq-item.open{border-color:var(--primary-border);box-shadow:var(--shadow-sm)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;font-size:15px;font-weight:600;color:var(--text);
  text-align:left;transition:color .2s;
}
.faq-question:hover{color:var(--primary)}
.faq-icon{font-size:20px;color:var(--text-muted);transition:transform .2s,color .2s;font-weight:400;line-height:1}
.faq-item.open .faq-icon{color:var(--primary);transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-item.open .faq-answer{max-height:300px}
.faq-answer p{padding:0 20px 18px;font-size:14px;color:var(--text-secondary);line-height:1.7}

/* CTA */
.cta-block{
  position:relative;
  background:var(--primary);
  border-radius:24px;
  padding:64px 32px;
  text-align:center;
  overflow:hidden;
}
.cta-block::before,.cta-block::after{
  content:'';position:absolute;border-radius:50%;
  background:rgba(29,78,216,0.5);
}
.cta-block::before{width:200px;height:200px;top:-60px;left:-60px}
.cta-block::after{width:140px;height:140px;bottom:-40px;right:-40px;background:rgba(29,78,216,0.7)}
.cta-block h2{font-size:28px;font-weight:700;color:#fff;margin-bottom:12px;position:relative;z-index:1}
.cta-block p{font-size:15px;color:#DBEAFE;margin-bottom:28px;position:relative;z-index:1}
.cta-block .btn{position:relative;z-index:1}

/* Footer */
.site-footer{background:#0F172A;color:#94A3B8;padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:48px;margin-bottom:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.7;max-width:280px}
.footer-col h4{
  font-size:14px;font-weight:600;color:#F1F5F9;
  margin-bottom:18px;
}
.footer-col a,.footer-col p{
  display:block;font-size:14px;color:#94A3B8;
  margin-bottom:10px;transition:color .2s;
}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(148,163,184,0.2);
  padding-top:24px;text-align:center;
  font-size:12px;color:#64748B;
}

/* Sticky CTA */
.sticky-cta{
  position:fixed;bottom:0;left:0;right:0;z-index:40;
  height:64px;background:rgba(255,255,255,0.98);
  border-top:1px solid var(--border);
  box-shadow:0 -4px 12px rgba(15,23,42,0.06);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;
}
.sticky-cta p{font-size:14px;color:var(--text-secondary);font-weight:500}
.sticky-cta .btn{height:40px;padding:0 20px;font-size:14px}

/* Responsive */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero{min-height:auto;padding:64px 0}
  .hero-right{max-width:560px}
  .feature-row{grid-template-columns:1fr;gap:32px}
  .feature-row.reverse .feature-text{order:1}
  .feature-row.reverse .feature-img{order:2}
  .search-box{width:150px}
  .search-box:focus-within{width:170px}
  .path-grid{grid-template-columns:1fr;gap:16px}
  .path-line{display:none}
}
@media(max-width:768px){
  .main-nav{
    display:none;
    position:absolute;top:72px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--border);
    flex-direction:column;padding:12px 16px;gap:4px;
    box-shadow:var(--shadow-md);
  }
  .main-nav.nav-open{display:flex}
  .nav-link{width:100%;padding:12px 14px}
  .nav-link.active::after{display:none}
  .search-box{display:none}
  .hamburger{display:flex}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .news-grid{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(3,1fr);gap:16px}
  .stats-row{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sticky-cta p{font-size:13px;max-width:60%}
  .hero-float-card{left:10px}
}
@media(max-width:520px){
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .trust-grid{grid-template-columns:1fr 1fr;gap:12px}
  .trust-item{flex-direction:column;gap:4px}
  .news-card{flex-direction:column}
  .news-thumb{width:100%;height:auto;aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-block{padding:48px 20px}
  .sticky-cta{padding:0 16px}
}

/* roulang page: category1 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #EFF6FF;
            --primary-border: #DBEAFE;
            --accent: #D97706;
            --success: #10B981;
            --danger: #EF4444;
            --bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --text-main: #0F172A;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --radius-btn: 10px;
            --radius-card: 16px;
            --radius-lg: 24px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 12px 24px rgba(37, 99, 235, 0.10);
            --font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            padding-bottom: 80px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

        input {
            font-family: inherit;
        }

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

        /* 导航 */
        .main-nav {
            position: sticky;
            top: 0;
            z-index: 50;
            background: #fff;
            height: 72px;
            border-bottom: 1px solid var(--border);
            transition: box-shadow 0.3s ease;
        }

        .main-nav.scrolled {
            box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            line-height: 1;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0 auto;
        }

        .nav-link {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 8px 14px;
            border-radius: 8px;
            position: relative;
            font-weight: 500;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

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

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: #F1F5F9;
            border-radius: 8px;
            padding: 0 12px;
            height: 40px;
            width: 200px;
            gap: 8px;
            border: 1px solid transparent;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
            background: #fff;
        }

        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            flex: 1;
            font-size: 14px;
            color: var(--text-main);
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-kbd {
            font-size: 11px;
            background: #E2E8F0;
            border-radius: 4px;
            padding: 2px 6px;
            color: var(--text-secondary);
            white-space: nowrap;
            font-weight: 500;
        }

        .icon-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            background: #F8FAFC;
            border: 1px solid var(--border);
            transition: all 0.2s ease;
        }

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

        .avatar-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--primary-border);
            transition: all 0.2s ease;
        }

        .avatar-btn:hover {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            height: 40px;
            padding: 0 20px;
            border: none;
            transition: all 0.2s ease;
            white-space: nowrap;
            gap: 6px;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.28);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
            background: var(--primary-dark);
        }

        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--primary);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            color: var(--text-main);
            border: 1px solid #CBD5E1;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            height: 48px;
            padding: 0 24px;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        .btn-outline:focus-visible {
            outline: none;
            box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--primary);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: #F8FAFC;
            border: 1px solid var(--border);
        }

        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        /* Banner */
        .page-banner {
            background: var(--primary-light);
            padding: 60px 0 48px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--primary-border);
        }

        .banner-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .banner-text h1 {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .banner-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 54ch;
            margin-bottom: 24px;
        }

        .banner-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .banner-meta {
            display: flex;
            gap: 20px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .banner-meta i {
            margin-right: 4px;
            color: var(--primary);
        }

        .banner-image {
            position: relative;
        }

        .banner-image img {
            border-radius: 16px;
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.15);
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .banner-image::after {
            content: "";
            position: absolute;
            top: -12px;
            right: -12px;
            width: 80px;
            height: 80px;
            background: rgba(37, 99, 235, 0.1);
            border-radius: 50%;
            z-index: -1;
        }

        .float-card {
            position: absolute;
            bottom: 18px;
            left: -24px;
            background: #fff;
            border-radius: 12px;
            padding: 14px 18px;
            box-shadow: 0 8px 24px rgba(15, 23, 42, 0.1);
            display: flex;
            align-items: center;
            gap: 12px;
            border: 1px solid var(--border);
        }

        .float-card-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .float-card-text {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .float-card-text strong {
            display: block;
            font-size: 15px;
            color: var(--text-main);
        }

        /* 面包屑 */
        .breadcrumb {
            padding: 20px 0 0;
            font-size: 13px;
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

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

        .breadcrumb .sep {
            margin: 0 8px;
            color: var(--text-muted);
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* 内容区 */
        .content-section {
            padding: 48px 0;
        }

        .content-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .main-panel {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 36px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }

        .main-panel h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.4;
            position: relative;
            padding-left: 16px;
        }

        .main-panel h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        .main-panel .intro {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }

        .main-panel .intro strong {
            color: var(--text-main);
        }

        /* 图标小卡片 */
        .info-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-bottom: 36px;
        }

        .info-card {
            background: var(--bg);
            border-radius: 12px;
            padding: 20px;
            border: 1px solid var(--border);
            transition: all 0.2s ease;
        }

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

        .info-card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .info-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .info-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 流程步骤 */
        .process-section {
            margin: 36px 0;
            padding: 32px;
            background: var(--primary-light);
            border-radius: var(--radius-card);
            border: 1px solid var(--primary-border);
        }

        .process-section .section-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .process-section h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--text-main);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-step {
            text-align: center;
            padding: 16px 12px;
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border);
            position: relative;
            transition: all 0.2s ease;
        }

        .process-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .process-step-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
        }

        .process-step h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* 侧边栏 */
        .sidebar {
            position: sticky;
            top: 88px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }

        .sidebar-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 i {
            color: var(--primary);
            font-size: 16px;
        }

        .sidebar-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-links li {
            margin-bottom: 4px;
        }

        .sidebar-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 10px;
            border-radius: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            transition: all 0.2s ease;
        }

        .sidebar-links a:hover {
            background: var(--primary-light);
            color: var(--primary);
            padding-left: 14px;
        }

        .sidebar-links a i {
            font-size: 12px;
            color: var(--text-muted);
            width: 16px;
            text-align: center;
        }

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

        .contact-card {
            background: var(--primary-light);
            border-radius: var(--radius-card);
            padding: 24px;
            border: 1px solid var(--primary-border);
            text-align: center;
        }

        .contact-card .icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #fff;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin: 0 auto 14px;
            box-shadow: var(--shadow-card);
        }

        .contact-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .contact-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 18px;
            line-height: 1.6;
        }

        .contact-card .btn-primary {
            width: 100%;
        }

        /* 数据统计条 */
        .stats-section {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 40px;
            margin: 48px 0;
            box-shadow: var(--shadow-card);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-item .stat-number.accent {
            color: var(--accent);
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        /* FAQ */
        .faq-section {
            padding: 48px 0;
        }

        .faq-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .faq-header .section-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .faq-header h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .faq-header p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .faq-item:hover {
            border-color: var(--primary-border);
            box-shadow: var(--shadow-card);
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            width: 100%;
            text-align: left;
            transition: color 0.2s ease;
        }

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

        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: all 0.2s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            background: var(--bg);
            border-top: 1px solid transparent;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 16px 20px;
            border-top-color: var(--border);
        }

        /* CTA */
        .cta-section {
            padding: 48px 0 64px;
        }

        .cta-card {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }

        .cta-card::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 200px;
            height: 200px;
            background: rgba(29, 78, 216, 0.3);
            border-radius: 50%;
        }

        .cta-card h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }

        .cta-card .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            color: var(--primary);
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 700;
            height: 48px;
            padding: 0 32px;
            border: none;
            transition: all 0.2s ease;
            position: relative;
            z-index: 1;
            gap: 8px;
        }

        .cta-card .btn-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }

        .cta-card .btn-white:focus-visible {
            outline: none;
            box-shadow: 0 0 0 2px var(--primary), 0 0 0 4px #fff;
        }

        /* 页脚 */
        .site-footer {
            background: #0F172A;
            color: #94A3B8;
            padding: 56px 0 80px;
        }

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

        .footer-brand .logo {
            margin-bottom: 14px;
        }

        .footer-brand .logo-text {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: #94A3B8;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: #94A3B8;
            padding: 4px 0;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-col a:hover {
            color: #fff;
            padding-left: 6px;
        }

        .footer-col p {
            font-size: 14px;
            color: #94A3B8;
            padding: 4px 0;
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            font-size: 12px;
            color: #64748B;
            text-align: center;
        }

        /* 底部固定转化条 */
        .footer-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 40;
            height: 64px;
            background: #fff;
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 12px rgba(15, 23, 42, 0.06);
            display: flex;
            align-items: center;
            padding: 0 24px;
        }

        .footer-cta-inner {
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .footer-cta-bar p {
            font-size: 14px;
            color: var(--text-secondary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .footer-cta-bar .btn-primary {
            flex-shrink: 0;
        }

        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: #fff;
            padding: 16px 24px 24px;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
            z-index: 49;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 15px;
            color: var(--text-main);
            font-weight: 500;
            transition: all 0.2s ease;
        }

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

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

            .search-box {
                width: 160px;
            }

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

            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

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

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-right .search-box,
            .nav-right .icon-btn,
            .nav-right .avatar-btn {
                display: none;
            }

            .hamburger {
                display: flex;
            }

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

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

            .float-card {
                left: 12px;
            }

            .info-cards {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .process-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .cta-card {
                padding: 36px 24px;
            }

            .main-panel {
                padding: 24px 20px;
            }

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

            .footer-cta-bar p {
                font-size: 12px;
            }

            .footer-cta-bar .btn-primary {
                padding: 0 14px;
                font-size: 13px;
                height: 38px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 520px) {
            .banner-text h1 {
                font-size: 26px;
            }

            .banner-text p {
                font-size: 15px;
            }

            .banner-actions {
                flex-direction: column;
            }

            .banner-actions .btn-primary,
            .banner-actions .btn-outline {
                width: 100%;
            }

            .footer-cta-bar {
                padding: 0 12px;
            }

            .footer-cta-bar p {
                max-width: 140px;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
            }

            .footer-cta-bar .btn-primary {
                padding: 0 12px;
                font-size: 12px;
            }

            .cta-card {
                padding: 28px 20px;
            }
        }

/* roulang page: article */
:root {
      --primary: #2563EB;
      --primary-dark: #1D4ED8;
      --primary-light: #EFF6FF;
      --primary-border: #DBEAFE;
      --accent: #D97706;
      --success: #10B981;
      --error: #EF4444;
      --bg: #F8FAFC;
      --card: #FFFFFF;
      --text: #0F172A;
      --text-secondary: #475569;
      --text-muted: #94A3B8;
      --border: #E2E8F0;
      --radius-lg: 16px;
      --radius-md: 10px;
      --radius-sm: 8px;
      --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
      --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
      --shadow-hover: 0 12px 24px rgba(37, 99, 235, 0.10);
    }
    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.7;
      margin: 0;
      padding-bottom: 80px;
    }
    img {
      max-width: 100%;
      display: block;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease;
    }
    button {
      cursor: pointer;
      font-family: inherit;
    }
    input {
      font-family: inherit;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    @media (max-width: 640px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
    }
    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: #fff;
      border-bottom: 1px solid var(--border);
      transition: box-shadow .2s ease;
    }
    .site-header.scrolled {
      box-shadow: var(--shadow-md);
    }
    .header-inner {
      display: flex;
      align-items: center;
      height: 72px;
      gap: 16px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .logo-icon {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 700;
    }
    .logo-text {
      font-size: 18px;
      font-weight: 700;
      color: var(--text);
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 24px;
      margin-left: 32px;
    }
    .main-nav .nav-link {
      font-size: 14px;
      color: var(--text-secondary);
      font-weight: 500;
      padding: 8px 2px;
      position: relative;
      white-space: nowrap;
    }
    .main-nav .nav-link:hover {
      color: var(--primary);
    }
    .main-nav .nav-link.active {
      color: var(--primary);
    }
    .main-nav .nav-link.active::after {
      content: '';
      position: absolute;
      left: 0;
      right: 0;
      bottom: -2px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: auto;
    }
    .search-box {
      display: flex;
      align-items: center;
      background: #F1F5F9;
      border-radius: 8px;
      height: 36px;
      padding: 0 12px;
      width: 200px;
      gap: 8px;
      border: 1px solid transparent;
      transition: border-color .2s ease, background .2s ease;
    }
    .search-box:focus-within {
      border-color: var(--primary);
      background: #fff;
    }
    .search-box input {
      border: none;
      outline: none;
      background: transparent;
      width: 100%;
      font-size: 14px;
      color: var(--text);
    }
    .search-box input::placeholder {
      color: var(--text-muted);
    }
    .search-box .kbd {
      font-size: 12px;
      color: var(--text-muted);
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 4px;
      padding: 1px 6px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 600;
      border-radius: 10px;
      transition: all .2s ease;
      font-size: 15px;
      padding: 0 20px;
      height: 44px;
      border: none;
      line-height: 1;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 1px 3px rgba(37, 99, 235, .3);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
    }
    .btn-primary:active {
      transform: translateY(0);
    }
    .btn-primary:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }
    .btn-white {
      background: #fff;
      color: var(--primary);
    }
    .btn-white:hover {
      background: #F1F5F9;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, .12);
    }
    .btn-outline {
      background: transparent;
      color: var(--text-secondary);
      border: 1px solid #CBD5E1;
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }
    .btn-sm {
      height: 40px;
      font-size: 14px;
      padding: 0 16px;
      border-radius: 8px;
    }
    .mobile-toggle {
      display: none;
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      background: transparent;
      border: 1px solid var(--border);
      flex-direction: column;
      gap: 4px;
    }
    .mobile-toggle span {
      width: 16px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
    }
    .mobile-menu {
      display: none;
      background: #fff;
      border-top: 1px solid var(--border);
      padding: 12px 16px;
    }
    .mobile-menu a {
      display: block;
      padding: 10px 8px;
      font-size: 16px;
      color: var(--text-secondary);
      border-radius: 8px;
    }
    .mobile-menu a:hover {
      background: var(--primary-light);
      color: var(--primary);
    }
    .mobile-menu a.active {
      color: var(--primary);
      font-weight: 600;
    }
    @media (max-width: 768px) {
      .main-nav {
        display: none;
      }
      .search-box {
        display: none;
      }
      .header-actions .btn {
        display: none;
      }
      .mobile-toggle {
        display: inline-flex;
      }
      .header-actions {
        gap: 8px;
      }
    }
    .badge {
      display: inline-block;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 12px;
      font-weight: 500;
      padding: 4px 12px;
      border-radius: 999px;
      line-height: 1.4;
    }
    /* Page Banner */
    .page-banner {
      background: var(--primary-light);
      border-radius: 24px;
      padding: 48px 56px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
      border: 1px solid var(--primary-border);
    }
    .banner-text h1 {
      font-size: clamp(28px, 3.6vw, 42px);
      font-weight: 800;
      line-height: 1.25;
      color: var(--text);
      margin: 12px 0 14px;
    }
    .banner-text p {
      font-size: 18px;
      color: var(--text-secondary);
      line-height: 1.6;
      margin-bottom: 24px;
      max-width: 52ch;
    }
    .banner-stats {
      display: flex;
      gap: 32px;
      flex-wrap: wrap;
    }
    .banner-stats .stat {
      display: flex;
      flex-direction: column;
    }
    .banner-stats .stat span {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }
    .banner-stats .stat em {
      font-style: normal;
      font-size: 14px;
      color: var(--text-secondary);
    }
    .banner-img img {
      width: 100%;
      height: 260px;
      object-fit: cover;
      border-radius: 16px;
      box-shadow: var(--shadow-md);
    }
    @media (max-width: 768px) {
      .page-banner {
        grid-template-columns: 1fr;
        padding: 32px 24px;
        gap: 24px;
      }
      .banner-img img {
        height: 200px;
      }
    }
    /* Content Grid */
    .content-section {
      padding-top: 48px;
      padding-bottom: 48px;
    }
    .content-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 32px;
      align-items: start;
    }
    @media (max-width: 1024px) {
      .content-grid {
        grid-template-columns: 1fr;
      }
    }
    .main-col {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .content-card {
      background: #fff;
      border-radius: 16px;
      padding: 32px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border);
    }
    .content-card h2 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text);
    }
    .content-card p {
      font-size: 16px;
      line-height: 1.7;
      color: var(--text-secondary);
      margin-bottom: 14px;
    }
    .content-card p:last-child {
      margin-bottom: 0;
    }
    .icon-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    @media (max-width: 768px) {
      .icon-cards-grid {
        grid-template-columns: 1fr;
      }
    }
    .icon-card {
      background: #fff;
      border-radius: 16px;
      padding: 20px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border);
      transition: all .2s ease;
    }
    .icon-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .icon-card .icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
      font-size: 22px;
    }
    .icon-card h3 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .icon-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.6;
    }
    /* Sidebar */
    .sidebar {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .sidebar-card {
      background: #fff;
      border-radius: 16px;
      padding: 24px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border);
    }
    .sidebar-card h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 14px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--border);
    }
    .link-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .link-list li {
      padding: 8px 0;
      border-bottom: 1px solid #F1F5F9;
    }
    .link-list li:last-child {
      border-bottom: none;
    }
    .link-list a {
      font-size: 14px;
      color: var(--text-secondary);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .link-list a:hover {
      color: var(--primary);
    }
    .link-list a::before {
      content: '›';
      font-size: 16px;
      color: var(--primary);
    }
    .contact-card {
      background: var(--primary-light);
      border-color: var(--primary-border);
      text-align: center;
    }
    .contact-card p {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 16px;
      line-height: 1.6;
    }
    .contact-card .btn {
      width: 100%;
    }
    /* FAQ */
    .faq-section {
      padding-top: 48px;
      padding-bottom: 48px;
    }
    .section-header {
      text-align: center;
      margin-bottom: 32px;
    }
    .section-header h2 {
      font-size: 28px;
      font-weight: 700;
      margin-top: 12px;
    }
    .section-header p {
      color: var(--text-secondary);
      font-size: 15px;
      margin-top: 8px;
    }
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 12px;
      overflow: hidden;
      transition: border-color .2s ease, box-shadow .2s ease;
    }
    .faq-item.active {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, .08);
    }
    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      padding: 16px 20px;
      background: transparent;
      border: none;
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      text-align: left;
    }
    .faq-icon {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 400;
      transition: transform .2s ease;
      flex-shrink: 0;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .2s ease;
    }
    .faq-answer p {
      padding: 0 20px 16px;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
    }
    /* CTA */
    .cta-section {
      padding-top: 24px;
      padding-bottom: 64px;
    }
    .cta-card {
      background: var(--primary);
      border-radius: 24px;
      padding: 56px 32px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cta-card::before {
      content: '';
      position: absolute;
      top: -40px;
      right: -40px;
      width: 200px;
      height: 200px;
      background: var(--primary-dark);
      border-radius: 50%;
      opacity: .18;
    }
    .cta-card::after {
      content: '';
      position: absolute;
      bottom: -60px;
      left: -30px;
      width: 160px;
      height: 160px;
      background: var(--primary-dark);
      border-radius: 50%;
      opacity: .12;
    }
    .cta-content {
      position: relative;
      z-index: 1;
      max-width: 640px;
      margin: 0 auto;
    }
    .cta-content h2 {
      color: #fff;
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .cta-content p {
      color: rgba(255, 255, 255, .85);
      font-size: 15px;
      margin-bottom: 24px;
      line-height: 1.6;
    }
    .cta-buttons {
      display: flex;
      gap: 14px;
      justify-content: center;
      flex-wrap: wrap;
    }
    /* Footer */
    .site-footer {
      background: #0F172A;
      color: #94A3B8;
      padding: 48px 0 24px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 32px;
    }
    .footer-brand .logo {
      margin-bottom: 14px;
    }
    .footer-brand .logo-text {
      color: #fff;
    }
    .footer-brand p {
      font-size: 14px;
      line-height: 1.6;
      max-width: 280px;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 14px;
    }
    .footer-col a {
      display: block;
      font-size: 14px;
      padding: 4px 0;
      color: #94A3B8;
    }
    .footer-col a:hover {
      color: #fff;
    }
    .footer-col p {
      font-size: 14px;
      padding: 4px 0;
      margin: 0;
    }
    .footer-bottom {
      border-top: 1px solid rgba(148, 163, 184, .15);
      padding-top: 20px;
      text-align: center;
      font-size: 12px;
      color: #64748B;
    }
    @media (max-width: 768px) {
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
    }
    /* Mobile CTA Bar */
    .mobile-cta-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 40;
      height: 64px;
      background: #fff;
      border-top: 1px solid var(--border);
      box-shadow: 0 -4px 12px rgba(15, 23, 42, .06);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 24px;
    }
    .mobile-cta-bar span {
      font-size: 14px;
      color: var(--text-secondary);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    @media (max-width: 480px) {
      .mobile-cta-bar span {
        font-size: 13px;
      }
    }
    /* Focus visible accessibility */
    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }