/* roulang page: index */
:root{
  --primary:#0f2d5a;
  --primary-dark:#092040;
  --primary-light:#1b4a8c;
  --accent:#f0b429;
  --accent-hover:#d9a21f;
  --bg-light:#f7f9fc;
  --bg-gray:#eef2f7;
  --bg-white:#ffffff;
  --text-main:#1a2233;
  --text-muted:#66738a;
  --border-color:#e3e8ef;
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:20px;
  --shadow-sm:0 2px 8px rgba(12,30,60,.06);
  --shadow-md:0 10px 32px rgba(12,30,60,.09);
  --shadow-lg:0 18px 50px rgba(12,30,60,.14);
  --font-main:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --transition:.3s ease
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-main);
  color:var(--text-main);
  background:var(--bg-light);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,h5,h6{margin:0;line-height:1.3;font-weight:700;color:var(--primary-dark)}
p{margin:0}
button,input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-head{max-width:720px;margin:0 auto 56px;text-align:center}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(240,180,41,.12);
  color:var(--accent-hover);
  font-size:13px;font-weight:700;letter-spacing:1px;
  padding:6px 16px;border-radius:100px;margin-bottom:18px;
}
.section-head h2{font-size:34px;letter-spacing:-.5px}
.section-head p{margin-top:16px;color:var(--text-muted);font-size:16px}
.section-light{background:var(--bg-white)}
.section-gray{background:var(--bg-gray)}
/* Button */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 30px;border-radius:100px;font-size:15px;font-weight:600;
  border:2px solid transparent;cursor:pointer;letter-spacing:.3px;
  transition:all var(--transition);line-height:1;
}
.btn .fa-arrow-right{font-size:13px}
.btn-primary{background:var(--accent);color:#121212;box-shadow:0 8px 24px rgba(240,180,41,.35)}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 12px 32px rgba(240,180,41,.45)}
.btn-outline{border-color:rgba(255,255,255,.7);color:#fff;background:rgba(255,255,255,.08)}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.18)}
.btn-dark{background:var(--primary);color:#fff;box-shadow:0 8px 24px rgba(15,45,90,.3)}
.btn-dark:hover{background:var(--primary-light);transform:translateY(-2px)}
/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border-color);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
.brand-logo{
  display:flex;align-items:center;gap:12px;
  font-size:20px;font-weight:800;color:var(--primary);letter-spacing:-.3px;
  white-space:nowrap;
}
.brand-logo i{color:var(--accent);font-size:22px}
.brand-logo:hover{color:var(--primary-light)}
.main-nav{display:flex;align-items:center}
.main-nav>ul{display:flex;gap:2px;list-style:none}
.main-nav>ul>li{margin:0}
.main-nav a{
  display:block;padding:9px 16px;border-radius:100px;
  font-size:14px;font-weight:500;color:var(--text-main);
}
.main-nav a:hover{color:var(--primary);background:#f0f4fa}
.main-nav a.active{color:var(--primary);background:#e8edf5;font-weight:600}
.nav-cta{
  margin-left:8px;
  background:var(--primary);color:#fff;border-radius:100px;
  padding:10px 24px;font-size:14px;font-weight:600;
  display:inline-flex;align-items:center;gap:8px;
  transition:all var(--transition);
}
.nav-cta:hover{background:var(--primary-light);color:#fff;transform:translateY(-1px)}
.mobile-toggle{display:none;background:none;border:none;font-size:22px;color:var(--primary);cursor:pointer;padding:8px}
/* Hero */
.hero{position:relative;padding:130px 0 110px;overflow:hidden;background:var(--primary-dark)}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;z-index:0;
  background-image:url('/assets/images/backpic/back-1.png');
}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(120deg,rgba(9,32,64,.95) 0%,rgba(15,45,90,.85) 45%,rgba(27,74,140,.72) 100%);
}
.hero-content{position:relative;z-index:2;color:#fff;max-width:760px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  color:#f5d78a;padding:7px 18px;border-radius:100px;
  font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:28px;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(240,180,41,.3)}
.hero-content h1{font-size:48px;line-height:1.18;color:#fff;letter-spacing:-1px;margin-bottom:22px}
.hero-content h1 span{color:var(--accent)}
.hero-desc{font-size:17px;line-height:1.8;color:rgba(255,255,255,.85);max-width:600px;margin-bottom:38px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:60px}
.hero-stats{
  display:flex;gap:0;border-top:1px solid rgba(255,255,255,.15);padding-top:36px;max-width:540px;
}
.hero-stat{flex:1;text-align:left}
.hero-stat+.hero-stat{border-left:1px solid rgba(255,255,255,.15);padding-left:28px}
.hero-stat-num{font-size:26px;font-weight:800;color:#fff;letter-spacing:-.5px}
.hero-stat-num small{font-size:15px;color:var(--accent)}
.hero-stat-label{display:block;font-size:13px;color:rgba(255,255,255,.65);margin-top:4px}
/* Intro cards */
.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.intro-card{
  background:var(--bg-white);border:1px solid var(--border-color);
  border-radius:var(--radius-lg);padding:38px 32px;
  transition:all var(--transition);position:relative;overflow:hidden;
}
.intro-card::after{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--accent),var(--primary-light));
  opacity:0;transition:var(--transition);
}
.intro-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent}
.intro-card:hover::after{opacity:1}
.intro-icon{
  width:60px;height:60px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(240,180,41,.18),rgba(27,74,140,.12));
  color:var(--primary);font-size:24px;margin-bottom:22px;
}
.intro-card h3{font-size:19px;margin-bottom:12px}
.intro-card p{font-size:14px;color:var(--text-muted);line-height:1.75}
/* Category cards */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.cat-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:#fff;border:1px solid var(--border-color);
  transition:all var(--transition);display:flex;flex-direction:column;
}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}
.cat-cover{position:relative;height:190px;overflow:hidden}
.cat-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.cat-card:hover .cat-cover img{transform:scale(1.06)}
.cat-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(9,32,64,.45));}
.cat-body{padding:28px 28px 32px;display:flex;flex-direction:column;flex:1}
.cat-tag{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(240,180,41,.14);color:var(--accent-hover);
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:100px;
  align-self:flex-start;margin-bottom:15px;letter-spacing:.5px;
}
.cat-body h3{font-size:19px;margin-bottom:10px}
.cat-body p{font-size:14px;color:var(--text-muted);line-height:1.7;flex:1;margin-bottom:20px}
.cat-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary);font-weight:600;font-size:14px;
}
.cat-link i{font-size:12px;transition:transform var(--transition)}
.cat-card:hover .cat-link i{transform:translateX(4px)}
/* News / CMS list */
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-item{
  display:block;background:var(--bg-white);
  border:1px solid var(--border-color);border-radius:var(--radius-md);
  padding:26px 28px;transition:all var(--transition);position:relative;
}
.news-item:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:transparent}
.news-meta{display:flex;align-items:center;gap:14px;margin-bottom:12px;flex-wrap:wrap}
.news-cat-tag{
  background:var(--primary);color:#fff;font-size:11px;font-weight:600;
  padding:4px 12px;border-radius:100px;letter-spacing:.5px;
}
.news-date{font-size:13px;color:var(--text-muted);display:inline-flex;align-items:center;gap:6px}
.news-date i{font-size:12px;color:var(--accent)}
.news-item h3{font-size:17px;margin-bottom:8px;line-height:1.45}
.news-item p{font-size:14px;color:var(--text-muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-empty{
  grid-column:1/-1;text-align:center;padding:48px;background:var(--bg-white);
  border:1px dashed var(--border-color);border-radius:var(--radius-md);
  color:var(--text-muted);font-size:15px;
}
/* Process */
.process-section{background:var(--primary-dark);position:relative;overflow:hidden}
.process-section::before{
  content:"";position:absolute;top:-120px;right:-120px;width:360px;height:360px;
  border-radius:50%;background:rgba(240,180,41,.08);
}
.process-section::after{
  content:"";position:absolute;bottom:-80px;left:-80px;width:280px;height:280px;
  border-radius:50%;background:rgba(27,74,140,.3);
}
.process-section .section-head h2{color:#fff}
.process-section .section-head p{color:rgba(255,255,255,.7)}
.process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative;z-index:2}
.process-step{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-lg);padding:32px 24px;text-align:center;
  backdrop-filter:blur(6px);transition:all var(--transition);
}
.process-step:hover{background:rgba(255,255,255,.12);transform:translateY(-4px)}
.step-num{
  width:44px;height:44px;border-radius:12px;margin:0 auto 18px;
  background:var(--accent);color:#121212;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;
}
.process-step h3{color:#fff;font-size:16px;margin-bottom:10px}
.process-step p{color:rgba(255,255,255,.65);font-size:13px;line-height:1.7}
.step-arrow{display:none}
/* Stats band */
.stats-band{background:var(--bg-white);padding:70px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.stat-box{text-align:center;padding:30px 20px;border-radius:var(--radius-md);background:var(--bg-light);border:1px solid var(--border-color)}
.stat-box .num{font-size:38px;font-weight:800;color:var(--primary);letter-spacing:-1px}
.stat-box .num sup{font-size:16px;color:var(--accent);font-weight:700}
.stat-box .label{font-size:14px;color:var(--text-muted);margin-top:8px}
/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--bg-white);border:1px solid var(--border-color);
  border-radius:var(--radius-md);margin-bottom:16px;
  overflow:hidden;transition:all var(--transition);
}
.faq-item:hover{border-color:#c9d4e3}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 26px;cursor:pointer;font-weight:600;font-size:15px;color:var(--text-main);
  border:none;background:none;width:100%;text-align:left;
}
.faq-q i{color:var(--accent);font-size:14px;transition:transform var(--transition)}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 26px 24px;color:var(--text-muted);font-size:14px;line-height:1.8}
/* CTA */
.cta-section{padding:90px 0}
.cta-box{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(120deg,var(--primary) 0%,var(--primary-light) 100%);
  padding:70px 60px;text-align:center;color:#fff;
}
.cta-box::before{
  content:"";position:absolute;top:-60px;right:-60px;width:220px;height:220px;
  border-radius:50%;background:rgba(240,180,41,.18);
}
.cta-box h2{color:#fff;font-size:32px;margin-bottom:16px}
.cta-box p{color:rgba(255,255,255,.8);max-width:560px;margin:0 auto 36px}
.cta-box .btn-primary{margin-top:6px}
.cta-mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:660px;margin:40px auto 0;position:relative;z-index:2}
.cta-mini{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);border-radius:12px;padding:16px;font-size:13px;color:rgba(255,255,255,.9)}
.cta-mini i{color:var(--accent);margin-right:6px}
/* Footer */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.75);padding:70px 0 0}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px;padding-bottom:50px}
.footer-brand{max-width:320px}
.footer-brand .brand-logo{color:#fff;margin-bottom:18px}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.6);transition:all var(--transition)}
.footer-col a:hover{color:var(--accent);padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:24px 0 28px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--accent)}
/* Focus */
a:focus-visible,button:focus-visible{
  outline:3px solid rgba(240,180,41,.6);outline-offset:2px;border-radius:4px;
}
/* Responsive */
@media (max-width:1024px){
  .hero{padding:100px 0 80px}
  .hero-content h1{font-size:38px}
  .section{padding:76px 0}
  .process-steps{grid-template-columns:repeat(2,1fr);gap:18px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:840px){
  .header-inner{height:64px}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;background:#fff;
    border-bottom:1px solid var(--border-color);
    padding:12px 20px 18px;box-shadow:var(--shadow-sm);
    transform:translateY(-140%);opacity:0;pointer-events:none;
    transition:all .35s ease;z-index:99;
  }
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .main-nav>ul{flex-direction:column;gap:2px}
  .main-nav a{padding:12px 16px;font-size:15px}
  .nav-cta{display:none}
  .mobile-toggle{display:inline-flex}
  .intro-grid,.cat-grid{grid-template-columns:1fr 1fr;gap:20px}
  .news-list{grid-template-columns:1fr;gap:18px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .hero{padding:80px 0 64px}
  .hero-content h1{font-size:29px}
  .hero-desc{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-stats{flex-direction:column;gap:16px}
  .hero-stat{text-align:center}
  .hero-stat+.hero-stat{border-left:none;padding-left:0}
  .section{padding:60px 0}
  .section-head{margin-bottom:38px}
  .section-head h2{font-size:26px}
  .intro-grid,.cat-grid{grid-template-columns:1fr}
  .process-steps{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{justify-content:center;text-align:center}
  .cta-box{padding:44px 24px}
  .cta-box h2{font-size:25px}
  .cta-mini-grid{grid-template-columns:1fr}
}
@media (max-width:420px){
  .process-steps{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --primary:#2563eb;
  --primary-dark:#1e40af;
  --primary-light:#3b82f6;
  --accent:#0ea5e9;
  --accent-light:#38bdf8;
  --dark-bg:#0b1220;
  --dark-bg-2:#111c34;
  --bg-light:#f1f5f9;
  --bg-white:#ffffff;
  --text-title:#0f172a;
  --text-body:#334155;
  --text-muted:#64748b;
  --border:#e2e8f0;
  --radius-xl:24px;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:9px;
  --shadow-xs:0 1px 3px rgba(2,12,27,.05);
  --shadow-sm:0 2px 10px rgba(2,12,27,.06);
  --shadow-md:0 8px 28px rgba(2,12,27,.09);
  --shadow-lg:0 18px 44px rgba(2,12,27,.14);
  --font-sans:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --space-section:90px;
}

/* ============ 基础 reset / base ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-sans);
  background:var(--bg-white);
  color:var(--text-body);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--space-section) 0}
.section-alt{background:var(--bg-light)}
.hd-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(37,99,235,.08);color:var(--primary);
  font-size:.82rem;font-weight:700;letter-spacing:.04em;
  padding:6px 16px;border-radius:999px;margin-bottom:14px;
}
.hd-eyebrow i{font-size:.8rem}
.section-title{font-size:2rem;font-weight:800;color:var(--text-title);line-height:1.25;margin-bottom:10px;letter-spacing:-.02em}
.section-desc{font-size:1rem;color:var(--text-muted);max-width:640px;line-height:1.7;margin-bottom:36px}
.section-head{text-align:center;margin-bottom:48px}
.section-head .section-desc{margin-left:auto;margin-right:auto}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:.95rem;font-weight:600;
  padding:12px 28px;border-radius:999px;
  transition:all .28s cubic-bezier(.2,.7,.3,1);
  border:2px solid transparent;line-height:1.4;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.28)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 28px rgba(37,99,235,.38)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);backdrop-filter:blur(4px)}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--primary-dark);box-shadow:0 6px 18px rgba(0,0,0,.16)}
.btn-white:hover{background:#f1f5f9;transform:translateY(-2px)}
.btn:focus-visible{outline:3px solid rgba(37,99,235,.45);outline-offset:2px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.brand-logo{
  display:flex;align-items:center;gap:10px;
  font-size:1.25rem;font-weight:800;color:var(--text-title);
  letter-spacing:-.01em;white-space:nowrap;
}
.brand-logo i{color:var(--primary);font-size:1.5rem;transition:transform .3s ease}
.brand-logo:hover i{transform:rotate(-8deg) scale(1.08)}
.main-nav ul{display:flex;gap:4px;margin:0}
.main-nav a{
  display:block;padding:9px 18px;border-radius:999px;
  font-size:.92rem;font-weight:500;color:var(--text-body);
  transition:all .25s ease;white-space:nowrap;
}
.main-nav a:hover{background:#f1f5f9;color:var(--primary)}
.main-nav a.active{background:var(--primary);color:#fff;font-weight:600;box-shadow:0 4px 14px rgba(37,99,235,.28)}
.main-nav a:focus-visible{outline:3px solid rgba(37,99,235,.4);outline-offset:2px}
.nav-toggle{
  display:none;flex-direction:column;gap:5px;
  width:42px;height:42px;align-items:center;justify-content:center;
  border-radius:10px;background:var(--bg-light);transition:all .25s ease;
}
.nav-toggle span{width:20px;height:2px;background:var(--text-title);border-radius:2px;transition:all .3s ease}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ Hero ============ */
.hero{
  position:relative;
  background:
    linear-gradient(135deg,rgba(11,18,32,.96) 0%,rgba(29,58,138,.85) 52%,rgba(14,165,233,.68) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  padding:120px 0 100px;
  text-align:center;
  overflow:hidden;
}
.hero::after{
  content:'';position:absolute;left:50%;top:-40%;width:600px;height:600px;
  background:radial-gradient(circle,rgba(255,255,255,.08) 0%,transparent 60%);
  transform:translateX(-50%);pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:.82rem;font-weight:600;
  padding:7px 20px;border-radius:999px;margin-bottom:22px;
  backdrop-filter:blur(6px);
}
.hero-badge i{color:var(--accent-light)}
.hero h1{
  font-size:3rem;font-weight:900;line-height:1.18;
  letter-spacing:-.02em;margin-bottom:20px;
}
.hero h1 .grad{
  background:linear-gradient(120deg,#fff 30%,var(--accent-light) 75%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-desc{
  font-size:1.12rem;line-height:1.8;color:rgba(255,255,255,.86);
  max-width:620px;margin:0 auto 34px;
}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-stats{
  display:flex;gap:48px;justify-content:center;
  margin-top:60px;padding-top:36px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-stat{text-align:center}
.hero-stat .num{font-size:1.7rem;font-weight:800;color:#fff;line-height:1.2}
.hero-stat .label{font-size:.85rem;color:rgba(255,255,255,.68);margin-top:4px}

/* ============ 入口卡片 ============ */
.entry-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.entry-card{
  background:var(--bg-white);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:32px 24px 26px;
  box-shadow:var(--shadow-xs);
  transition:all .32s cubic-bezier(.2,.7,.3,1);
  position:relative;overflow:hidden;
}
.entry-card::before{
  content:'';position:absolute;left:0;top:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:0;transition:opacity .3s ease;
}
.entry-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-lg);border-color:rgba(37,99,235,.2)}
.entry-card:hover::before{opacity:1}
.entry-card .icon{
  width:58px;height:58px;border-radius:16px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:1.35rem;margin-bottom:20px;
  box-shadow:0 6px 18px rgba(37,99,235,.25);
  transition:transform .3s ease;
}
.entry-card:hover .icon{transform:scale(1.08) rotate(-4deg)}
.entry-card h3{font-size:1.08rem;font-weight:700;color:var(--text-title);margin-bottom:10px}
.entry-card p{font-size:.9rem;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
.entry-card .card-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.87rem;font-weight:600;color:var(--primary);
  transition:gap .25s ease;
}
.entry-card .card-link:hover{gap:10px;color:var(--primary-dark)}

/* ============ 流程步骤 ============ */
.steps-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  counter-reset:step;
}
.step-item{
  background:var(--bg-white);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:34px 24px 28px;
  text-align:center;
  position:relative;
  transition:all .3s ease;
  box-shadow:var(--shadow-xs);
}
.step-item:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.step-num{
  width:52px;height:52px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;font-size:1.15rem;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 18px;
  box-shadow:0 8px 20px rgba(37,99,235,.3);
  position:relative;z-index:2;
}
.step-item h3{font-size:1rem;font-weight:700;color:var(--text-title);margin-bottom:8px}
.step-item p{font-size:.88rem;color:var(--text-muted);line-height:1.65}
.step-line{
  position:absolute;top:56px;left:calc(50% + 40px);
  width:calc(100% - 40px);height:2px;
  background:repeating-linear-gradient(90deg,var(--primary-light) 0 6px,transparent 6px 12px);
  z-index:1;
}
@media(max-width:1024px){.step-line{display:none}}

/* ============ 安全提示 + 对比 ============ */
.safety-wrap{
  display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;
}
.safety-image{
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  position:relative;
}
.safety-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.safety-image:hover img{transform:scale(1.03)}
.safety-image::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(11,18,32,.32));
}
.safety-list{display:flex;flex-direction:column;gap:16px}
.safety-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--bg-white);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:18px 20px;
  transition:all .28s ease;
  box-shadow:var(--shadow-xs);
}
.safety-item:hover{border-color:rgba(37,99,235,.22);box-shadow:var(--shadow-sm);transform:translateX(4px)}
.safety-item .s-icon{
  flex:0 0 42px;width:42px;height:42px;border-radius:12px;
  background:rgba(37,99,235,.08);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:1rem;
}
.safety-item h4{font-size:.95rem;font-weight:700;color:var(--text-title);margin-bottom:4px}
.safety-item p{font-size:.85rem;color:var(--text-muted);line-height:1.6;margin:0}

/* ============ 对比表格 ============ */
.compare-wrap{
  background:var(--bg-white);
  border:1px solid var(--border);
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.compare-table{width:100%;border-collapse:collapse}
.compare-table thead{background:var(--dark-bg-2);color:#fff}
.compare-table th{
  padding:18px 20px;font-weight:600;font-size:.92rem;text-align:left;
}
.compare-table td{
  padding:17px 20px;font-size:.9rem;color:var(--text-body);
  border-bottom:1px solid #eef2f7;line-height:1.65;
}
.compare-table tr:last-child td{border-bottom:none}
.compare-table tbody tr{transition:background .2s ease}
.compare-table tbody tr:hover{background:#f8fafc}
.compare-table .td-tag{
  display:inline-block;padding:4px 14px;border-radius:999px;
  font-size:.78rem;font-weight:600;
}
.td-tag.high{background:rgba(37,99,235,.1);color:var(--primary-dark)}
.td-tag.mid{background:rgba(14,165,233,.1);color:#0284c7}
.td-tag.norm{background:rgba(100,116,139,.1);color:var(--text-muted)}
.compare-foot{
  background:var(--bg-light);padding:16px 24px;
  font-size:.84rem;color:var(--text-muted);
  display:flex;align-items:center;gap:10px;
}
.compare-foot i{color:var(--primary)}

/* ============ FAQ ============ */
.faq-list{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{
  background:var(--bg-white);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:26px 30px;
  transition:all .28s ease;
  box-shadow:var(--shadow-xs);
}
.faq-item:hover{border-color:rgba(37,99,235,.18);box-shadow:var(--shadow-sm)}
.faq-item h3{
  display:flex;align-items:flex-start;gap:12px;
  font-size:1rem;font-weight:700;color:var(--text-title);
  margin-bottom:10px;line-height:1.5;
}
.faq-item h3 i{color:var(--primary);font-size:.92rem;margin-top:5px}
.faq-item p{font-size:.9rem;color:var(--text-muted);line-height:1.75;padding-left:26px;margin:0}

/* ============ CTA ============ */
.cta-section{padding-bottom:90px}
.cta-block{
  background:
    linear-gradient(135deg,rgba(30,64,175,.94),rgba(14,165,233,.82)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-radius:var(--radius-xl);
  padding:68px 56px;
  text-align:center;color:#fff;
  position:relative;overflow:hidden;
  box-shadow:0 20px 50px rgba(11,18,32,.22);
}
.cta-block::before{
  content:'';position:absolute;right:-60px;top:-60px;
  width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-block h2{font-size:2rem;font-weight:800;margin-bottom:14px;letter-spacing:-.02em}
.cta-block p{font-size:1rem;color:rgba(255,255,255,.88);max-width:560px;margin:0 auto 30px;line-height:1.8}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark-bg);
  color:#94a3b8;
  padding-top:70px;
  font-size:.9rem;
}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr;
  gap:48px;padding-bottom:44px;
}
.footer-brand .brand-logo{color:#fff;font-size:1.2rem;margin-bottom:16px}
.footer-brand .brand-logo i{color:var(--accent-light)}
.footer-brand p{line-height:1.75;color:#94a3b8;font-size:.9rem}
.footer-col h4{
  color:#fff;font-size:1rem;font-weight:700;
  margin-bottom:18px;letter-spacing:.01em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#94a3b8;transition:all .22s ease;font-size:.88rem}
.footer-col a:hover{color:#fff;padding-left:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:10px;
  font-size:.82rem;color:#64748b;
}
.footer-bottom a{color:#94a3b8;transition:color .2s ease}
.footer-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  :root{--space-section:70px}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px}
  .safety-wrap{grid-template-columns:1fr;gap:36px}
  .hero{padding:100px 0 80px}
  .hero h1{font-size:2.4rem}
  .cta-block{padding:52px 36px}
}
@media(max-width:768px){
  :root{--space-section:58px}
  .header-inner{height:64px}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;z-index:99;
    background:#fff;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-md);
    max-height:0;overflow:hidden;
    transition:max-height .35s ease;
  }
  .main-nav.open{max-height:420px}
  .main-nav ul{flex-direction:column;padding:18px 24px;gap:4px}
  .main-nav a{padding:14px 16px;border-radius:12px;font-size:.95rem}
  .main-nav a.active{background:var(--primary)}
  .section-title{font-size:1.7rem}
  .hero{padding:80px 0 60px}
  .hero h1{font-size:2rem}
  .hero-desc{font-size:1rem}
  .hero-stats{gap:28px;flex-wrap:wrap}
  .entry-grid{grid-template-columns:1fr;gap:18px}
  .steps-grid{grid-template-columns:1fr;gap:16px}
  .compare-wrap{overflow-x:auto}
  .compare-table{min-width:560px}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
  .cta-block{padding:42px 24px}
  .safety-list{gap:12px}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .hero h1{font-size:1.7rem}
  .section-title{font-size:1.45rem}
  .btn{padding:11px 22px;font-size:.9rem;width:100%;text-align:center}
  .hero-actions{flex-direction:column}
  .cta-actions{flex-direction:column}
  .footer-bottom{flex-direction:column;gap:6px}
  .compare-foot{flex-wrap:wrap}
  .faq-item{padding:20px}
  .step-item{padding:26px 18px}
}

/* ============ 焦点可见性 ============ */
a:focus-visible,button:focus-visible,.entry-card:focus-within{
  outline:3px solid rgba(37,99,235,.4);outline-offset:2px;
}

/* roulang page: article */
:root {
  --primary: #123256;
  --primary-light: #1d4a7c;
  --primary-lighter: #3a6ea5;
  --primary-dark: #0a1e38;
  --accent: #f2a33c;
  --accent-hover: #d9881f;
  --accent-soft: #fff3e0;
  --bg: #f7f9fc;
  --bg-card: #ffffff;
  --bg-dark: #0b1f38;
  --text: #1f2a3d;
  --text-weak: #5d6b7e;
  --text-light: #8d9bad;
  --border: #e4eaf1;
  --border-light: #eff2f6;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(10, 30, 56, 0.05);
  --shadow-md: 0 8px 30px rgba(10, 30, 56, 0.09);
  --shadow-lg: 0 16px 48px rgba(10, 30, 56, 0.14);
  --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, 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: 1.65;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--primary-light);
  text-decoration: none;
  transition: color 0.25s ease;
}
a:hover {
  color: var(--accent);
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 2px 18px rgba(10, 30, 56, 0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 20px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.brand-logo i {
  color: var(--accent);
  font-size: 24px;
}
.brand-logo:hover {
  color: var(--primary-light);
}
.main-nav ul {
  display: flex;
  list-style: none;
  gap: 8px;
  margin: 0;
  padding: 0;
}
.main-nav ul li {
  margin: 0;
}
.main-nav ul li a {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15px;
  color: var(--text-weak);
  transition: var(--transition);
  border: 1px solid transparent;
}
.main-nav ul li a:hover {
  color: var(--primary);
  background: var(--accent-soft);
  border-color: #fbe2c0;
}
.main-nav ul li a.active {
  color: #ffffff;
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(18, 50, 86, 0.22);
}
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg);
  color: var(--primary);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.mobile-toggle:hover {
  background: var(--accent-soft);
}
.main-nav.open {
  display: block;
}
.page-banner {
  position: relative;
  padding: 84px 0 64px;
  background: linear-gradient(135deg, rgba(10, 30, 56, 0.93), rgba(26, 58, 95, 0.82)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  color: #ffffff;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 18px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  transition: var(--transition);
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb .sep {
  opacity: 0.6;
}
.banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(242, 163, 60, 0.18);
  color: #ffd9a0;
  border: 1px solid rgba(242, 163, 60, 0.4);
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 18px;
  backdrop-filter: blur(4px);
}
.banner-badge i {
  font-size: 12px;
}
.banner-title {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.5px;
  max-width: 860px;
  margin-bottom: 18px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
}
.banner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}
.banner-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.banner-meta i {
  color: var(--accent);
}
.article-section {
  padding: 56px 0 24px;
  background: var(--bg);
}
.article-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 40px;
  border: 1px solid var(--border-light);
  margin-bottom: 36px;
}
.article-body {
  font-size: 16px;
  line-height: 1.85;
  color: #2a3548;
}
.article-body h2 {
  font-size: 25px;
  font-weight: 700;
  color: var(--primary);
  margin-top: 30px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border-light);
}
.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-light);
  margin-top: 22px;
  margin-bottom: 10px;
}
.article-body h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-top: 18px;
  margin-bottom: 8px;
}
.article-body p {
  margin-bottom: 16px;
}
.article-body ul,
.article-body ol {
  padding-left: 24px;
  margin-bottom: 16px;
}
.article-body li {
  margin-bottom: 6px;
}
.article-body img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin: 20px 0;
}
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  padding: 14px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-weak);
  margin: 20px 0;
}
.article-body a {
  color: var(--accent-hover);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
}
.article-body table th,
.article-body table td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
.article-body table th {
  background: var(--blue-soft);
  font-weight: 600;
  color: var(--primary);
}
.article-tags {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.article-tags .tag-label {
  font-weight: 600;
  color: var(--text-weak);
  font-size: 14px;
}
.tag-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--blue-soft);
  color: var(--primary-light);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid #dae6f3;
}
.tag-item:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}
.notfound-box {
  text-align: center;
  padding: 60px 20px;
}
.notfound-icon {
  width: 88px;
  height: 88px;
  margin: 0 auto 22px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
}
.notfound-box h2 {
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 12px;
}
.notfound-box p {
  color: var(--text-weak);
  margin-bottom: 24px;
  font-size: 15px;
}
.btn-main {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #ffffff;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
  box-shadow: 0 4px 18px rgba(18, 50, 86, 0.18);
}
.btn-main:hover {
  background: var(--primary-light);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(18, 50, 86, 0.24);
}
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 96px;
}
.sidebar-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
}
.sidebar-card:hover {
  box-shadow: var(--shadow-md);
}
.sidebar-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 14px;
}
.sidebar-card-head i {
  color: var(--accent);
  font-size: 18px;
}
.sidebar-card p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 14px;
}
.sidebar-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-light);
  transition: var(--transition);
}
.sidebar-more:hover {
  color: var(--accent);
  gap: 10px;
}
.sidebar-links {
  list-style: none;
  margin: 0;
  padding: 0;
}
.sidebar-links li {
  margin-bottom: 4px;
}
.sidebar-links li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-weak);
  transition: var(--transition);
  border: 1px solid transparent;
}
.sidebar-links li a i {
  font-size: 12px;
  color: var(--accent);
}
.sidebar-links li a:hover {
  background: var(--accent-soft);
  color: var(--primary);
  border-color: #fbe2c0;
  padding-left: 16px;
}
.sidebar-card-accent {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #ffffff;
  border: none;
}
.sidebar-card-accent .sidebar-card-head {
  color: #ffffff;
}
.sidebar-card-accent .sidebar-card-head i {
  color: var(--accent);
}
.sidebar-card-accent p {
  color: rgba(255, 255, 255, 0.75);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #ffffff;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
}
.btn-outline:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  transform: translateY(-2px);
}
.related-section {
  padding: 64px 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.section-head {
  text-align: center;
  margin-bottom: 40px;
}
.section-head .section-tag {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}
.section-head p {
  color: var(--text-weak);
  font-size: 15px;
  margin: 0;
}
.related-card {
  display: block;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.related-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--blue-soft);
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .related-thumb img {
  transform: scale(1.05);
}
.related-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(10, 30, 56, 0.3));
  pointer-events: none;
}
.related-body {
  padding: 20px;
}
.related-cat {
  display: inline-block;
  background: var(--blue-soft);
  color: var(--primary-light);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.related-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-meta {
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}
.related-meta i {
  color: var(--accent);
}
.cta-section {
  padding: 70px 0;
  background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  position: relative;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(11, 31, 56, 0.9);
}
.cta-box {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  color: #ffffff;
  padding: 20px;
}
.cta-box h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 16px;
}
.cta-box p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 30px;
}
.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}
.btn-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--primary-dark);
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  transition: var(--transition);
  box-shadow: 0 6px 22px rgba(242, 163, 60, 0.35);
}
.btn-light:hover {
  background: #ffbd6a;
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(242, 163, 60, 0.4);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #ffffff;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.faq-section {
  padding: 70px 0;
  background: var(--bg);
}
.faq-grid {
  max-width: 960px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  box-shadow: var(--shadow-md);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  list-style: none;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 13px;
  color: var(--accent);
  transition: transform 0.35s ease;
  flex-shrink: 0;
}
.faq-item details[open] summary::after {
  transform: rotate(180deg);
}
.faq-item details[open] summary {
  color: var(--accent-hover);
}
.faq-content {
  padding: 0 24px 22px;
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.75;
}
.faq-content p {
  margin: 0;
}
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .brand-logo {
  color: #ffffff;
  margin-bottom: 16px;
  font-size: 20px;
}
.footer-brand .brand-logo i {
  color: var(--accent);
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  max-width: 360px;
  margin: 0;
}
.footer-col h4 {
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.65);
  transition: var(--transition);
}
.footer-bottom a:hover {
  color: var(--accent);
}
.footer-bottom span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
@media (max-width: 1024px) {
  .header-inner {
    min-height: 64px;
  }
  .brand-logo {
    font-size: 18px;
  }
  .main-nav ul li a {
    padding: 8px 14px;
    font-size: 14px;
  }
  .banner-title {
    font-size: 32px;
  }
  .article-card {
    padding: 30px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .container {
    padding: 0 18px;
  }
  .site-header {
    position: sticky;
  }
  .header-inner {
    flex-wrap: wrap;
  }
  .main-nav {
    display: none;
    width: 100%;
    order: 3;
    background: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 12px;
    border: 1px solid var(--border-light);
    margin-top: 8px;
  }
  .main-nav.open {
    display: block;
  }
  .main-nav ul {
    flex-direction: column;
    gap: 4px;
  }
  .main-nav ul li a {
    display: block;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }
  .main-nav ul li a.active {
    background: var(--accent-soft);
    color: var(--primary);
    border-color: #fbe2c0;
    box-shadow: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .page-banner {
    padding: 56px 0 40px;
  }
  .banner-title {
    font-size: 26px;
  }
  .article-section {
    padding: 32px 0 16px;
  }
  .article-card {
    padding: 22px 18px;
  }
  .article-body {
    font-size: 15px;
  }
  .sidebar {
    position: static;
    margin-top: 20px;
  }
  .related-section {
    padding: 48px 0;
  }
  .section-head h2 {
    font-size: 25px;
  }
  .cta-section {
    padding: 50px 0;
  }
  .cta-box h2 {
    font-size: 25px;
  }
  .faq-section {
    padding: 50px 0;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
}
@media (max-width: 520px) {
  .brand-logo {
    font-size: 16px;
    gap: 6px;
  }
  .brand-logo i {
    font-size: 18px;
  }
  .banner-title {
    font-size: 21px;
  }
  .banner-meta {
    flex-direction: column;
    gap: 8px;
  }
  .article-card {
    padding: 18px 14px;
  }
  .cta-buttons {
    flex-direction: column;
  }
  .btn-light,
  .btn-ghost {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
  .faq-item summary {
    font-size: 14px;
    padding: 16px 18px;
  }
  .faq-content {
    padding: 0 18px 18px;
    font-size: 13px;
  }
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root {
  --primary: #2962ff;
  --primary-hover: #1e50d6;
  --primary-light: rgba(41, 98, 255, 0.1);
  --accent: #00b4d8;
  --accent-light: rgba(0, 180, 216, 0.12);
  --dark: #0f172a;
  --dark-light: #1e293b;
  --bg: #ffffff;
  --bg-alt: #f6f9fc;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 6px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 14px 40px rgba(15, 23, 42, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
::selection { background: rgba(41, 98, 255, 0.2); }
:focus-visible { outline: 3px solid rgba(41, 98, 255, 0.4); outline-offset: 2px; border-radius: 4px; }

/* ========== 容器 ========== */
.grid-container { max-width: 1240px; padding-left: 24px; padding-right: 24px; }

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  gap: 20px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.28rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.brand-logo i { color: var(--primary); font-size: 1.5rem; }
.main-nav { display: flex; align-items: center; }
.main-nav ul { display: flex; gap: 6px; align-items: center; }
.main-nav a {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}
.main-nav a:hover { color: var(--primary); background: var(--primary-light); }
.main-nav a.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 4px 16px rgba(41, 98, 255, 0.35);
  font-weight: 600;
}
.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  position: relative;
  transition: var(--transition);
}
.nav-toggle:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--dark);
  margin: 4px auto;
  border-radius: 4px;
  transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ========== 页面 Banner ========== */
.page-hero {
  position: relative;
  padding: 130px 0 110px;
  background-size: cover;
  background-position: center center;
  color: #fff;
  isolation: isolate;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(130deg, rgba(9, 14, 30, 0.92) 0%, rgba(24, 40, 80, 0.78) 45%, rgba(0, 120, 160, 0.55) 100%);
  z-index: -1;
}
.page-hero-content { max-width: 820px; }
.page-hero .badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.32);
  font-size: 0.86rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
}
.page-hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  margin: 22px 0 18px;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}
.page-hero p {
  font-size: 1.14rem;
  opacity: 0.92;
  max-width: 660px;
  line-height: 1.9;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
  border: none;
}
.btn i { font-size: 0.95rem; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 22px rgba(41, 98, 255, 0.4); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(41, 98, 255, 0.45); }
.btn-outline { background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.4); color: #fff; }
.btn-outline:hover { background: rgba(255, 255, 255, 0.2); border-color: rgba(255, 255, 255, 0.7); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--primary); box-shadow: var(--shadow-lg); }
.btn-light:hover { background: var(--bg-alt); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn i.fa-arrow-right { margin-left: 4px; }

/* ========== 通用板块 ========== */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--dark); }
.section-head { margin-bottom: 56px; max-width: 720px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 {
  font-size: clamp(1.6rem, 2.8vw, 2.3rem);
  font-weight: 700;
  margin: 14px 0 12px;
  color: var(--dark);
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.section-head p { color: var(--text-muted); font-size: 1.05rem; line-height: 1.75; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
}
.section-tag i { font-size: 0.8rem; }

/* ========== 卡片 ========== */
.card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(41, 98, 255, 0.25);
}
.card-img { position: relative; height: 200px; overflow: hidden; }
.card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(15, 23, 42, 0.16) 100%);
}
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); }
.card:hover .card-img img { transform: scale(1.06); }
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  background: var(--primary-light);
  color: var(--primary);
  margin-bottom: 16px;
}
.card-body { padding: 28px; flex: 1; }
.card-body h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; color: var(--dark); }
.card-body p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.75; }
.card-body .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
}
.card-body .card-link:hover { gap: 10px; }

/* ========== 图文功能区块 ========== */
.feature-block {
  display: flex;
  align-items: center;
  gap: 64px;
  padding: 52px 0;
}
.feature-block.reverse { flex-direction: row-reverse; }
.feature-media { flex: 1.1; }
.feature-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}
.feature-text { flex: 1; }
.feature-text .text-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--accent-light);
  color: #0284a8;
  margin-bottom: 16px;
}
.feature-text h3 { font-size: 1.55rem; font-weight: 700; margin-bottom: 14px; color: var(--dark); letter-spacing: -0.01em; }
.feature-text p { color: var(--text-muted); font-size: 1rem; line-height: 1.85; }
.feature-text .feat-list { margin-top: 20px; }
.feature-text .feat-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 7px 0;
  color: var(--text);
  font-size: 0.95rem;
}
.feature-text .feat-list li i { color: var(--primary); margin-top: 5px; font-size: 0.9rem; flex-shrink: 0; }

/* ========== 数据统计 ========== */
.stats-section {
  position: relative;
  padding: 100px 0;
  background-size: cover;
  background-position: center;
  isolation: isolate;
}
.stats-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, rgba(9, 14, 30, 0.94), rgba(41, 98, 255, 0.4));
  z-index: -1;
}
.stats-section .section-head h2 { color: #fff; }
.stats-section .section-head p { color: rgba(255, 255, 255, 0.72); }
.stat-block {
  text-align: center;
  padding: 36px 20px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(14px);
  transition: var(--transition);
  height: 100%;
}
.stat-block:hover { background: rgba(255, 255, 255, 0.13); transform: translateY(-5px); }
.stat-number {
  font-size: clamp(2rem, 3.4vw, 2.6rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1;
}
.stat-label { font-size: 0.95rem; color: rgba(255, 255, 255, 0.78); margin-top: 10px; }

/* ========== 流程步骤 ========== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
  margin-top: 20px;
}
.process-step {
  text-align: center;
  padding: 30px 16px 24px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
}
.process-step::after {
  content: "\f054";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 0.85rem;
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  opacity: 0.5;
  z-index: 2;
}
.process-step:last-child::after { display: none; }
.process-step:hover { box-shadow: var(--shadow-md); transform: translateY(-5px); border-color: var(--primary); }
.process-step .step-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 1.25rem;
}
.process-step .step-num { display: block; font-size: 0.78rem; font-weight: 700; color: var(--primary); margin-bottom: 6px; letter-spacing: 0.04em; }
.process-step h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.process-step p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.55; }

/* ========== FAQ ========== */
.faq-list { max-width: 900px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(41, 98, 255, 0.3); box-shadow: var(--shadow-sm); }
.faq-item summary {
  cursor: pointer;
  padding: 24px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--dark);
  list-style: none;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: transform 0.35s ease;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item[open] summary { border-bottom: 1px solid var(--border); color: var(--primary); }
.faq-item[open] summary::after { content: "\f077"; color: var(--primary); transform: rotate(180deg); }
.faq-content { padding: 20px 30px 28px; color: var(--text-muted); line-height: 1.85; font-size: 0.95rem; }

/* ========== CTA ========== */
.cta-section { padding: 64px 0 110px; }
.cta-box {
  background: linear-gradient(120deg, #1e40af 0%, #2563eb 45%, #0ea5b7 100%);
  border-radius: 28px;
  padding: 72px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(41, 98, 255, 0.3);
}
.cta-box::before {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  top: -130px;
  right: -60px;
}
.cta-box::after {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  bottom: -100px;
  left: -50px;
}
.cta-box h2 { font-size: clamp(1.6rem, 2.2vw, 2.2rem); font-weight: 800; margin-bottom: 14px; position: relative; z-index: 1; letter-spacing: -0.02em; }
.cta-box p { opacity: 0.92; margin-bottom: 30px; font-size: 1.06rem; position: relative; z-index: 1; }
.cta-box .btn { position: relative; z-index: 1; }

/* ========== 页脚 ========== */
.site-footer { background: var(--dark); color: rgba(255, 255, 255, 0.7); padding: 76px 0 0; }
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .brand-logo { color: #fff; font-size: 1.3rem; }
.footer-brand .brand-logo i { color: var(--accent); }
.footer-brand p { margin-top: 18px; font-size: 0.95rem; line-height: 1.85; max-width: 360px; color: rgba(255, 255, 255, 0.55); }
.footer-col h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 22px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 3px; border-radius: 3px; background: var(--accent); }
.footer-col ul li { margin-bottom: 12px; }
.footer-col a { color: rgba(255, 255, 255, 0.58); font-size: 0.93rem; transition: var(--transition); }
.footer-col a:hover { color: #fff; padding-left: 5px; }
.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom a { color: rgba(255, 255, 255, 0.4); }
.footer-bottom a:hover { color: #fff; }

/* ========== 响应式断点 ========== */
@media (max-width: 1024px) {
  .process-steps { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .process-step:nth-child(3)::after { display: none; }
  .process-step:nth-child(6)::after { display: none; }
  .feature-block { gap: 40px; }
  .footer-top { grid-template-columns: 1.5fr 1fr 1fr; gap: 30px; }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute;
    top: 78px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 20px;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
    display: none;
    backdrop-filter: blur(18px);
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 6px; }
  .main-nav a { display: block; padding: 14px 18px; border-radius: 12px; font-size: 1rem; }
  .main-nav a.active { box-shadow: none; }
  .header-inner { height: 68px; }
  .main-nav { top: 68px; }
  .page-hero { padding: 90px 0 70px; }
  .page-hero h1 { font-size: 2rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .section { padding: 70px 0; }
  .section-head { margin-bottom: 40px; }
  .feature-block { flex-direction: column; gap: 30px; padding: 34px 0; }
  .feature-block.reverse { flex-direction: column; }
  .feature-media img { aspect-ratio: 16/9; }
  .footer-top { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; justify-content: center; text-align: center; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-step:nth-child(even)::after { display: none; }
  .process-step:nth-child(3)::after { display: none; }
  .cta-box { padding: 50px 28px; border-radius: 20px; }
  .cta-box .btn { width: 100%; justify-content: center; }
  .faq-item summary { padding: 20px 20px; font-size: 0.95rem; }
  .faq-content { padding: 16px 20px 22px; }
}

@media (max-width: 520px) {
  .grid-container { padding-left: 18px; padding-right: 18px; }
  .brand-logo { font-size: 1.08rem; }
  .brand-logo i { font-size: 1.2rem; }
  .page-hero h1 { font-size: 1.7rem; }
  .page-hero p { font-size: 1rem; }
  .process-steps { grid-template-columns: 1fr; }
  .process-step::after { display: none !important; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; font-size: 0.82rem; }
  .stat-block { padding: 24px 14px; }
  .stat-number { font-size: 1.7rem; }
  .card-body { padding: 22px; }
}

@media (max-width: 380px) {
  .brand-logo { font-size: 0.98rem; gap: 6px; }
  .brand-logo i { font-size: 1.1rem; }
  .header-inner { gap: 10px; }
}

/* roulang page: category3 */
:root {
      --primary: #2563eb;
      --primary-dark: #1e3a8a;
      --primary-light: #60a5fa;
      --accent: #06b6d4;
      --accent-gold: #f59e0b;
      --bg: #f8fafc;
      --surface: #ffffff;
      --dark-bg: #0f172a;
      --dark-surface: #1e293b;
      --text: #1e293b;
      --text-light: #64748b;
      --border: #e2e8f0;
      --radius: 16px;
      --radius-sm: 10px;
      --shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.10);
      --transition: all 0.3s ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
      color: var(--text);
      background: var(--bg);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    ul {
      list-style: none;
    }

    button,
    input,
    textarea {
      font-family: inherit;
      outline: none;
    }

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

    .section {
      padding: 90px 0;
    }

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

    /* ========== 导航 ========== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      box-shadow: 0 1px 10px rgba(0, 0, 0, 0.06);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.22rem;
      font-weight: 800;
      color: var(--text);
      letter-spacing: 0;
    }

    .brand-logo i {
      width: 36px;
      height: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      border-radius: 9px;
      font-size: 1rem;
    }

    .brand-logo:hover {
      color: var(--primary);
      transform: translateY(-1px);
    }

    .main-nav ul {
      display: flex;
      align-items: center;
      gap: 4px;
      margin: 0;
    }

    .main-nav a {
      display: inline-block;
      padding: 8px 16px;
      border-radius: 8px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-light);
    }

    .main-nav a:hover {
      color: var(--primary);
      background: rgba(37, 99, 235, 0.08);
    }

    .main-nav a.active {
      color: var(--primary);
      background: rgba(37, 99, 235, 0.1);
      font-weight: 600;
    }

    .mobile-toggle {
      display: none;
      width: 42px;
      height: 42px;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      border: 1px solid var(--border);
      background: #fff;
      color: var(--text);
      cursor: pointer;
      font-size: 1.1rem;
    }

    .mobile-toggle:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    /* ========== 按钮 ========== */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 10px;
      font-size: 0.95rem;
      font-weight: 600;
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      text-decoration: none;
      line-height: 1.4;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 6px 18px rgba(37, 99, 235, 0.25);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(37, 99, 235, 0.35);
    }

    .btn-outline {
      background: transparent;
      color: #fff;
      border-color: rgba(255, 255, 255, 0.5);
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: #fff;
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-light {
      background: #fff;
      color: var(--primary);
      box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
    }

    .btn-light:hover {
      color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
    }

    /* ========== Hero ========== */
    .hero-section {
      position: relative;
      padding: 120px 0 140px;
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      color: #fff;
      text-align: center;
    }

    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.88), rgba(30, 58, 138, 0.78), rgba(37, 99, 235, 0.85));
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 820px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-block;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.25);
      padding: 6px 18px;
      border-radius: 50px;
      font-size: 0.85rem;
      letter-spacing: 0.08em;
      margin-bottom: 24px;
      color: rgba(255, 255, 255, 0.9);
    }

    .hero-content h1 {
      font-size: 3rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #fff;
    }

    .hero-content p {
      font-size: 1.12rem;
      color: rgba(255, 255, 255, 0.85);
      max-width: 660px;
      margin: 0 auto 38px;
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
    }

    /* ========== 板块标题 ========== */
    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 56px;
    }

    .section-tag {
      display: inline-block;
      color: var(--primary);
      background: rgba(37, 99, 235, 0.08);
      padding: 4px 14px;
      border-radius: 30px;
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0.04em;
      margin-bottom: 14px;
    }

    .section-header h2 {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-header p {
      color: var(--text-light);
      font-size: 1.05rem;
      line-height: 1.8;
    }

    /* ========== 安全体系概览 ========== */
    .overview-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }

    .overview-image {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .overview-image::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 60%, rgba(15, 23, 42, 0.25));
      pointer-events: none;
    }

    .overview-image img {
      width: 100%;
      height: 440px;
      object-fit: cover;
    }

    .overview-content h3 {
      font-size: 1.65rem;
      font-weight: 800;
      margin-bottom: 18px;
      line-height: 1.35;
    }

    .overview-content>p {
      color: var(--text-light);
      margin-bottom: 28px;
      line-height: 1.85;
    }

    .overview-features {
      display: grid;
      gap: 18px;
    }

    .overview-features li {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 16px 18px;
      transition: var(--transition);
    }

    .overview-features li:hover {
      border-color: rgba(37, 99, 235, 0.3);
      box-shadow: var(--shadow);
      transform: translateX(4px);
    }

    .overview-features i {
      color: var(--primary);
      font-size: 1.2rem;
      margin-top: 3px;
    }

    .overview-features h4 {
      font-size: 1.02rem;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .overview-features p {
      color: var(--text-light);
      font-size: 0.9rem;
      margin: 0;
    }

    /* ========== 核心保障能力 ========== */
    .cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 34px 28px;
      transition: var(--transition);
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow);
      border-color: rgba(37, 99, 235, 0.25);
    }

    .card-icon {
      width: 56px;
      height: 56px;
      border-radius: 14px;
      background: rgba(37, 99, 235, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 1.12rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .feature-card p {
      color: var(--text-light);
      font-size: 0.93rem;
      line-height: 1.75;
      margin: 0;
    }

    /* ========== 服务保障流程 ========== */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .step-item {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 34px 24px 30px;
      text-align: center;
      transition: var(--transition);
      position: relative;
    }

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

    .step-num {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      font-size: 1.1rem;
      box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
    }

    .step-item h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .step-item p {
      color: var(--text-light);
      font-size: 0.9rem;
      line-height: 1.7;
      margin: 0;
    }

    /* ========== 服务能力统计 ========== */
    .stats-section {
      background: var(--dark-bg);
      color: #fff;
      position: relative;
      background-image: url('/assets/images/backpic/back-3.png');
      background-size: cover;
      background-position: center;
      padding: 90px 0;
    }

    .stats-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(15, 23, 42, 0.88);
    }

    .stats-section .container {
      position: relative;
      z-index: 2;
    }

    .stats-section .section-header h2 {
      color: #fff;
    }

    .stats-section .section-header p {
      color: rgba(255, 255, 255, 0.7);
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }

    .stat-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius);
      padding: 36px 20px;
      backdrop-filter: blur(4px);
    }

    .stat-item .stat-num {
      font-size: 2.6rem;
      font-weight: 800;
      color: #fff;
      line-height: 1.2;
      margin-bottom: 8px;
    }

    .stat-item .stat-label {
      color: rgba(255, 255, 255, 0.7);
      font-size: 0.95rem;
    }

    /* ========== FAQ ========== */
    .faq-list.accordion {
      background: transparent;
      border: none;
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-list .accordion-item {
      background: var(--surface);
      border: 1px solid var(--border) !important;
      border-radius: 12px;
      margin-bottom: 16px;
      overflow: hidden;
      box-shadow: none;
    }

    .faq-list .accordion-title {
      padding: 22px 60px 22px 26px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text) !important;
      background: transparent;
      border-bottom: 0 !important;
      position: relative;
      transition: var(--transition);
    }

    .faq-list .accordion-title::before {
      content: '\f078';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      position: absolute;
      right: 24px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-light);
      font-size: 0.9rem;
      transition: var(--transition);
    }

    .faq-list .accordion-item.is-active .accordion-title {
      color: var(--primary) !important;
    }

    .faq-list .accordion-item.is-active .accordion-title::before {
      transform: translateY(-50%) rotate(180deg);
      color: var(--primary);
    }

    .faq-list .accordion-content {
      border-top: 1px solid var(--border);
      padding: 0 26px 24px !important;
      color: var(--text-light);
      background: var(--surface) !important;
      line-height: 1.85;
      font-size: 0.95rem;
    }

    /* ========== CTA ========== */
    .cta-section {
      padding: 90px 0;
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      text-align: center;
      color: #fff;
    }

    .cta-section h2 {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 18px;
      color: #fff;
    }

    .cta-section p {
      color: rgba(255, 255, 255, 0.85);
      max-width: 620px;
      margin: 0 auto 34px;
      font-size: 1.05rem;
      line-height: 1.8;
    }

    .cta-form {
      display: flex;
      gap: 12px;
      max-width: 520px;
      margin: 0 auto 24px;
      justify-content: center;
      flex-wrap: wrap;
    }

    .cta-form input {
      flex: 1;
      min-width: 200px;
      padding: 13px 20px;
      border-radius: 10px;
      border: 1px solid rgba(255, 255, 255, 0.4);
      background: rgba(255, 255, 255, 0.15);
      color: #fff;
      font-size: 0.95rem;
    }

    .cta-form input::placeholder {
      color: rgba(255, 255, 255, 0.6);
    }

    .cta-form input:focus {
      border-color: #fff;
      background: rgba(255, 255, 255, 0.22);
      box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
    }

    .cta-form .btn {
      flex-shrink: 0;
    }

    /* ========== 页脚 ========== */
    .site-footer {
      background: #0b1222;
      color: rgba(255, 255, 255, 0.65);
      padding: 64px 0 28px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 56px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-brand .brand-logo {
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-brand p {
      font-size: 0.92rem;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.55);
      max-width: 360px;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .footer-col ul {
      display: grid;
      gap: 12px;
    }

    .footer-col a {
      color: rgba(255, 255, 255, 0.55);
      font-size: 0.92rem;
    }

    .footer-col a:hover {
      color: #fff;
      padding-left: 4px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-top: 24px;
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.4);
      flex-wrap: wrap;
      gap: 10px;
    }

    .footer-bottom a {
      color: rgba(255, 255, 255, 0.4);
    }

    .footer-bottom a:hover {
      color: #fff;
    }

    /* ========== 响应式断点 ========== */
    @media (max-width: 1024px) {
      .section {
        padding: 70px 0;
      }

      .hero-section {
        padding: 100px 0 120px;
      }

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

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

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

      .overview-grid {
        gap: 40px;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        height: 64px;
      }

      .mobile-toggle {
        display: flex;
      }

      .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--border);
        padding: 16px;
      }

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

      .main-nav ul {
        flex-direction: column;
        gap: 4px;
      }

      .main-nav a {
        display: block;
        padding: 12px 16px;
        font-size: 1rem;
      }

      .section {
        padding: 56px 0;
      }

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

      .section-header h2 {
        font-size: 1.7rem;
      }

      .hero-section {
        padding: 80px 0 100px;
      }

      .hero-content h1 {
        font-size: 2.1rem;
      }

      .hero-content p {
        font-size: 1rem;
      }

      .overview-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }

      .overview-image img {
        height: 300px;
      }

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

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

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

      .footer-top {
        grid-template-columns: 1fr;
        gap: 36px;
      }

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

      .cta-section {
        padding: 64px 0;
      }

      .cta-section h2 {
        font-size: 1.6rem;
      }

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

      .cta-form .btn {
        justify-content: center;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 18px;
      }

      .brand-logo {
        font-size: 1.05rem;
      }

      .brand-logo i {
        width: 30px;
        height: 30px;
        font-size: 0.85rem;
      }

      .hero-content h1 {
        font-size: 1.75rem;
      }

      .hero-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
      }

      .hero-actions .btn {
        justify-content: center;
      }

      .section-header h2 {
        font-size: 1.45rem;
      }

      .overview-content h3 {
        font-size: 1.25rem;
      }

      .stat-item .stat-num {
        font-size: 2rem;
      }
    }