/* roulang page: index */
:root {
  --color-primary:#C6F135;
  --color-primary-bright:#D8F85C;
  --color-primary-soft:rgba(198,241,53,.12);
  --color-secondary:#FFB347;
  --color-bg-page:#0E141B;
  --color-bg-card:#18212B;
  --color-bg-elevated:#1E2935;
  --color-bg-deep:#0A1017;
  --color-bg-soft:#F5F7FA;
  --color-text:#E5E9ED;
  --color-text-weak:#A0ABB8;
  --color-text-muted:#7B8794;
  --color-text-deep:#1F2A37;
  --color-border:#2A3643;
  --color-border-light:#2B3947;
  --color-danger:#E5484D;
  --color-info:#4C6A92;
  --radius-lg:12px;
  --radius-md:6px;
  --radius-sm:4px;
  --shadow-card:0 1px 2px rgba(0,0,0,.2);
  --shadow-hover:0 8px 30px rgba(0,0,0,.35);
  --shadow-primary:0 0 0 1px #C6F135,0 6px 30px rgba(198,241,53,.12);
  --transition:200ms ease;
  --gap-section:80px;
  --font-sans:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--color-bg-page);
  color:var(--color-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
h1,h2,h3,h4{font-weight:700;line-height:1.3;color:var(--color-text)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.row{max-width:1200px;margin:0 auto}
.text-center{text-align:center}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 28px;border-radius:var(--radius-md);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all var(--transition);
  font-family:var(--font-sans);letter-spacing:.02em;white-space:nowrap;
}
.btn-primary{
  background:var(--color-primary);color:#12180A;border-color:var(--color-primary);
}
.btn-primary:hover{
  background:var(--color-primary-bright);color:#0C1205;
  box-shadow:0 0 12px rgba(198,241,53,.4);transform:translateY(-1px);
}
.btn-outline{
  background:transparent;color:var(--color-text);border-color:var(--color-border-light);
}
.btn-outline:hover{
  border-color:#fff;color:#fff;transform:translateY(-1px);
}
.btn-lg{height:52px;padding:0 36px;font-size:16px;min-width:160px}
.btn-sm{height:36px;padding:0 16px;font-size:13px}
.btn-block{width:100%}
.btn:focus-visible{
  outline:3px solid rgba(198,241,53,.35);outline-offset:2px;
}

/* Header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:60px;background:var(--color-bg-deep);
  border-bottom:1px solid var(--color-border);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:60px;position:relative;
}
.brand-logo{
  font-size:20px;font-weight:800;color:#fff;letter-spacing:.01em;
  display:flex;align-items:center;gap:2px;flex-shrink:0;
}
.brand-logo .brand-green{color:var(--color-primary)}
.main-nav{
  display:flex;align-items:center;gap:4px;
  position:absolute;left:50%;transform:translateX(-50%);
}
.nav-link{
  position:relative;padding:18px 14px;color:var(--color-text-weak);
  font-size:14px;font-weight:500;transition:color var(--transition),background var(--transition);
  border-radius:var(--radius-sm);white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.04)}
.nav-link.active{color:#fff}
.nav-link.active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:-2px;
  height:2px;background:var(--color-primary);
  box-shadow:0 0 4px rgba(198,241,53,.8);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;background:none;border:none;color:var(--color-text);
  font-size:20px;cursor:pointer;padding:8px;
}
.nav-toggle:focus-visible{outline:3px solid rgba(198,241,53,.35)}

/* Hero */
.hero-section{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:120px 0 60px;overflow:hidden;margin-top:60px;
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background:
    linear-gradient(180deg,rgba(14,20,27,.72) 0%,rgba(14,20,27,.85) 60%,var(--color-bg-page) 100%),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
}
.hero-inner{position:relative;z-index:2;text-align:center}
.hero-title{
  font-size:46px;line-height:1.22;font-weight:800;color:#fff;
  text-shadow:0 2px 8px rgba(0,0,0,.6);margin-bottom:16px;
}
.hero-title .hero-brand{
  display:block;font-size:36px;color:var(--color-primary);
  letter-spacing:.04em;margin-bottom:8px;
}
.hero-sub{
  font-size:18px;color:#B9C2CC;max-width:640px;margin:0 auto 32px;
  line-height:1.7;
}
.hero-ctas{
  display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:56px;
}
.hero-trust{
  display:flex;justify-content:center;gap:16px;flex-wrap:wrap;
}
.trust-item{
  display:flex;align-items:center;gap:8px;
  background:rgba(24,33,43,.8);border:1px solid var(--color-border);
  padding:10px 18px;border-radius:var(--radius-md);
  font-size:13px;color:var(--color-text-weak);
}
.trust-item i{color:var(--color-primary);font-size:14px}

/* Section base */
.section{padding:var(--gap-section) 0}
.section-head{
  text-align:center;margin-bottom:48px;
}
.section-head h2{
  font-size:32px;margin-bottom:12px;letter-spacing:.01em;
}
.section-head .section-desc{
  color:var(--color-text-muted);font-size:15px;max-width:600px;margin:0 auto;
}
.section-sub{display:block;color:var(--color-text-muted);font-size:14px;margin-bottom:8px}

/* Levels */
.level-section{
  background:linear-gradient(180deg,var(--color-bg-page) 0%,#101720 100%);
  padding:var(--gap-section) 0;
}
.level-progress{
  display:flex;align-items:center;justify-content:center;
  gap:0;margin-bottom:40px;max-width:600px;margin-left:auto;margin-right:auto;
}
.level-progress .track{
  flex:1;height:2px;background:var(--color-border);position:relative;
}
.level-progress .track.fill{
  background:var(--color-primary);height:2px;flex:0 0 32%;
}
.level-progress .dot{
  width:12px;height:12px;border-radius:50%;
  background:var(--color-border);border:2px solid var(--color-bg-page);flex-shrink:0;
}
.level-progress .dot.active{background:var(--color-primary);box-shadow:0 0 8px rgba(198,241,53,.6)}
.level-cards{display:flex;gap:24px;justify-content:center;align-items:stretch;flex-wrap:wrap}
.level-card{
  flex:1;min-width:280px;max-width:340px;
  background:var(--color-bg-card);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);padding:28px 26px;
  display:flex;flex-direction:column;transition:transform var(--transition),box-shadow var(--transition);
  position:relative;
}
.level-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
}
.level-card.featured{
  flex:1.05;border-color:var(--color-primary);border-width:1.5px;
  box-shadow:var(--shadow-primary);transform:scale(1.02);
}
.level-card.featured:hover{transform:scale(1.02) translateY(-2px)}
.level-card.featured::before{
  content:'';position:absolute;top:-1px;left:-1px;right:-1px;
  height:4px;background:var(--color-primary);
  border-radius:var(--radius-lg) var(--radius-lg) 0 0;
}
.featured-badge{
  position:absolute;top:16px;right:16px;
  background:var(--color-secondary);color:#1F1403;
  font-size:12px;font-weight:700;padding:4px 10px;border-radius:var(--radius-sm);
}
.level-name{font-size:22px;font-weight:700;margin-bottom:6px;color:#fff}
.level-audience{font-size:13px;color:var(--color-text-muted);margin-bottom:20px}
.level-list{list-style:none;margin-bottom:24px;flex:1}
.level-list li{
  padding:7px 0 7px 24px;position:relative;font-size:15px;color:var(--color-text);
  border-bottom:1px dashed rgba(255,255,255,.06);
}
.level-list li:last-child{border-bottom:none}
.level-list li::before{
  content:'';position:absolute;left:2px;top:15px;
  width:6px;height:6px;border-radius:50%;background:var(--color-primary);
}
.level-card .btn{width:100%}

/* Compare */
.compare-section{padding:var(--gap-section) 0;background:var(--color-bg-page)}
.compare-table-wrap{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--color-border)}
.compare-table{width:100%;border-collapse:collapse;background:var(--color-bg-card);font-size:14px;min-width:720px}
.compare-table thead th{
  background:var(--color-bg-elevated);color:#fff;
  padding:16px 18px;text-align:left;font-weight:600;
  border-bottom:1px solid var(--color-border);white-space:nowrap;
}
.compare-table tbody td{
  padding:14px 18px;border-bottom:1px solid rgba(255,255,255,.04);
  color:var(--color-text-weak);vertical-align:middle;
}
.compare-table tbody tr:nth-child(even){background:var(--color-bg-card)}
.compare-table tbody tr:nth-child(odd){background:#1C2733}
.compare-table td:first-child{
  background:var(--color-bg-elevated);color:var(--color-text);font-weight:600;white-space:nowrap;
}
.compare-table .highlight-col{
  box-shadow:inset 3px 0 0 var(--color-primary);
  background:rgba(198,241,53,.04);color:var(--color-text);
}
.compare-table .highlight-col.dim-label{color:var(--color-primary)}
.compare-table .price-val{
  color:var(--color-secondary);font-size:20px;font-weight:800;
  font-feature-settings:"tnum";
}
.compare-table .price-orig{
  font-size:12px;background:rgba(255,255,255,.06);color:var(--color-text-muted);
  padding:2px 6px;border-radius:3px;margin-left:6px;white-space:nowrap;
}
.compare-table-note{
  font-size:12px;color:var(--color-text-muted);margin-top:12px;
}
.compare-guide{
  background:var(--color-bg-card);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);padding:24px 20px;text-align:center;
}
.guide-avatar{
  width:72px;height:72px;border-radius:50%;overflow:hidden;margin:0 auto 16px;
  border:2px solid var(--color-primary);
}
.guide-avatar img{width:100%;height:100%;object-fit:cover}
.compare-guide p{font-size:14px;color:var(--color-text-weak);margin-bottom:16px}

/* CTA block */
.cta-block{
  position:relative;padding:80px 0;overflow:hidden;
  background:linear-gradient(135deg,#0A1017 0%,#151D26 55%,#101720 100%);
  border-top:1px solid var(--color-border);
}
.cta-block::before{
  content:'';position:absolute;top:-40%;right:-20%;width:520px;height:520px;
  background:radial-gradient(circle,rgba(198,241,53,.08) 0%,transparent 70%);
  border-radius:50%;
}
.cta-inner{
  position:relative;z-index:2;display:flex;align-items:center;
  justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-info h2{font-size:30px;margin-bottom:8px;color:#fff}
.cta-info p{color:var(--color-text-muted);font-size:15px}
.cta-timer{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.timer-label{font-size:14px;color:var(--color-text-weak)}
.timer-digits{
  font-size:40px;font-weight:800;color:var(--color-primary);
  font-feature-settings:"tnum";letter-spacing:.04em;
  background:rgba(198,241,53,.08);border:1px solid rgba(198,241,53,.2);
  padding:8px 20px;border-radius:var(--radius-md);
}

/* News */
.news-section{padding:var(--gap-section) 0;background:var(--color-bg-page)}
.info-grid{
  display:flex;flex-wrap:wrap;margin:0 -12px;gap:0;
}
.info-col{
  padding:0 12px;margin-bottom:24px;
}
.info-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--color-bg-card);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.info-card:hover{
  transform:translateY(-2px);border-color:rgba(198,241,53,.35);
  box-shadow:var(--shadow-hover);
}
.info-card-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--color-bg-deep)}
.info-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.info-card:hover .info-card-media img{transform:scale(1.03)}
.info-card-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  background:rgba(12,18,24,.82);color:var(--color-primary);
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--radius-sm);
  backdrop-filter:blur(4px);
}
.info-card-body{
  padding:18px 18px 16px;display:flex;flex-direction:column;flex:1;
}
.info-card-body h3{
  font-size:17px;font-weight:600;line-height:1.5;color:#fff;
  margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;min-height:51px;
}
.info-card-body p{
  font-size:14px;color:var(--color-text-muted);line-height:1.65;
  margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;
  overflow:hidden;flex:1;
}
.info-card-meta{
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.05);padding-top:12px;
}
.info-card-date{font-size:12px;color:var(--color-text-muted);font-feature-settings:"tnum"}
.info-card-link{
  font-size:13px;color:var(--color-primary);font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
}
.info-card-link i{font-size:12px;transition:transform var(--transition)}
.info-card:hover .info-card-link i{transform:translateX(3px)}
.info-empty{
  border:1px dashed var(--color-border-light);border-radius:var(--radius-lg);
  min-height:180px;display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:12px;background:rgba(24,33,43,.4);
}
.info-empty .empty-icon{
  width:48px;height:48px;border-radius:50%;
  background:var(--color-bg-card);display:flex;align-items:center;justify-content:center;
  color:var(--color-text-muted);font-size:20px;border:1px solid var(--color-border);
}
.info-empty p{color:var(--color-text-muted);font-size:14px}

/* Contact */
.contact-section{padding:var(--gap-section) 0;background:#101720}
.contact-card{
  background:var(--color-bg-card);border-radius:var(--radius-lg);
  border:1px solid var(--color-border);overflow:hidden;
}
.contact-card::before{
  content:'';display:block;height:2px;
  background:linear-gradient(90deg,var(--color-primary),transparent);
}
.contact-inner{display:flex;gap:48px;padding:44px 40px;flex-wrap:wrap}
.contact-left{flex:1;min-width:260px}
.contact-left h3{font-size:24px;margin-bottom:24px;color:#fff}
.contact-points{list-style:none}
.contact-points li{
  display:flex;gap:14px;align-items:center;padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.contact-points li:last-child{border-bottom:none}
.contact-points .point-icon{
  width:38px;height:38px;border-radius:var(--radius-md);
  background:var(--color-primary-soft);color:var(--color-primary);
  display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;
}
.contact-points .point-text{font-size:15px;color:var(--color-text)}
.contact-points .point-text small{display:block;font-size:13px;color:var(--color-text-muted)}
.contact-right{flex:1;min-width:300px}
.contact-form .form-row{margin-bottom:16px}
.contact-form label{
  font-size:13px;color:var(--color-text-weak);margin-bottom:6px;display:block;font-weight:500;
}
.contact-form input,
.contact-form select,
.contact-form textarea{
  width:100%;height:44px;background:var(--color-bg-page);
  border:1px solid var(--color-border-light);border-radius:var(--radius-md);
  padding:0 16px;color:var(--color-text);font-size:14px;font-family:var(--font-sans);
  transition:border-color var(--transition),box-shadow var(--transition);
  appearance:none;
}
.contact-form textarea{height:92px;padding:12px 16px;resize:vertical}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus{
  outline:none;border-color:var(--color-primary);
  box-shadow:0 0 0 3px rgba(198,241,53,.12);
}
.contact-form select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='%237B8794' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;
  padding-right:36px;
}
.form-privacy{font-size:12px;color:var(--color-text-muted);margin-top:12px;text-align:center}

/* FAQ */
.faq-section{padding:var(--gap-section) 0;background:var(--color-bg-page)}
.faq-card{
  max-width:820px;margin:0 auto;
  background:var(--color-bg-soft);border-radius:var(--radius-lg);
  padding:28px 32px;
}
.faq-card .section-top title? 我直接放内容
.faq-card h2{color:var(--color-text-deep);text-align:center;margin-bottom:24px}
.faq-accordion .accordion-item{
  background:transparent;border-bottom:1px solid #DCE3EA;border-radius:0;
}
.faq-accordion .accordion-item:last-child{border-bottom:none}
.faq-accordion .accordion-title{
  position:relative;display:flex;align-items:center;
  min-height:48px;padding:12px 40px 12px 0;
  color:var(--color-text-deep);font-size:15px;font-weight:600;
  background:transparent;border:none;transition:background var(--transition);
}
.faq-accordion .accordion-title:hover{background:rgba(198,241,53,.06)}
.faq-accordion .accordion-title::before{
  content:'';width:8px;height:8px;background:var(--color-primary);
  display:inline-block;margin-right:14px;border-radius:2px;flex-shrink:0;
}
.faq-accordion .accordion-title::after{
  content:'+';position:absolute;right:12px;font-size:20px;
  font-weight:300;color:var(--color-text-muted);
  transition:transform var(--transition);
}
.faq-accordion .accordion-item.is-active>.accordion-title::after{
  transform:rotate(45deg);color:var(--color-primary);
}
.faq-accordion .accordion-content{
  background:transparent;color:#3A4757;padding:0 0 18px 22px;
  font-size:14px;line-height:1.8;
}
.faq-accordion .accordion-content p{margin-bottom:8px}

/* Footer */
.site-footer{
  background:var(--color-bg-deep);
  border-top:1px solid transparent;
  position:relative;
}
.site-footer::before{
  content:'';position:absolute;top:0;left:15%;right:15%;
  height:1px;background:linear-gradient(90deg,transparent,var(--color-primary),transparent);
}
.footer-inner{
  display:flex;gap:48px;padding:56px 24px 40px;justify-content:space-between;flex-wrap:wrap;
}
.footer-brand{flex:1;min-width:260px;max-width:380px}
.footer-logo{
  font-size:22px;font-weight:800;color:#fff;margin-bottom:14px;
}
.footer-logo .brand-green{color:var(--color-primary)}
.footer-brand p{font-size:13px;color:var(--color-text-muted);line-height:1.8}
.footer-links{
  display:flex;gap:56px;flex-wrap:wrap;flex:1;justify-content:flex-end;
}
.footer-link-group h4{
  font-size:14px;color:#fff;font-weight:600;margin-bottom:14px;
}
.footer-link-group a{
  display:block;font-size:13px;color:var(--color-text-muted);
  padding:5px 0;transition:color var(--transition);
}
.footer-link-group a:hover{color:var(--color-primary)}
.footer-bottom{
  border-top:1px solid var(--color-border);
  padding:20px 0;text-align:center;
}
.footer-bottom p{font-size:12px;color:var(--color-text-muted)}
.footer-bottom a{color:var(--color-text-muted)}

/* Scroll reveal */
@media (prefers-reduced-motion: no-preference) {
  .reveal-fade{
    opacity:0;transform:translateY(8px);
    transition:opacity .45s ease,transform .45s ease;
  }
  .reveal-fade.visible{opacity:1;transform:translateY(0)}
}

/* Responsive */
@media (max-width:1024px){
  .main-nav{position:static;transform:none}
  .header-inner{gap:16px}
  .nav-link{padding:18px 10px;font-size:13px}
  .nav-actions .btn-sm{padding:0 12px;font-size:12px}
  .hero-title{font-size:38px}
  .hero-title .hero-brand{font-size:30px}
  .footer-inner{gap:32px}
  .footer-links{gap:32px}
}
@media (max-width:768px){
  :root{--gap-section:56px}
  .site-header{height:52px}
  .header-inner{height:52px}
  .nav-toggle{display:block}
  .main-nav{
    display:none;position:absolute;top:52px;left:0;right:0;
    flex-direction:column;align-items:stretch;background:var(--color-bg-deep);
    border-bottom:1px solid var(--color-border);padding:8px 16px;gap:0;
  }
  .main-nav.open{display:flex}
  .nav-link{padding:12px 8px;border-bottom:1px solid rgba(255,255,255,.04)}
  .nav-link.active::after{display:none}
  .nav-link.active{color:var(--color-primary)}
  .nav-actions .btn-sm{display:inline-flex;height:34px;padding:0 12px}
  .hero-section{padding:100px 0 40px;min-height:auto}
  .hero-title{font-size:30px}
  .hero-title .hero-brand{font-size:26px}
  .hero-sub{font-size:15px}
  .hero-trust{gap:8px}
  .trust-item{padding:8px 12px;font-size:12px}
  .level-card{flex:1 1 100%;max-width:none}
  .level-card.featured{transform:none}
  .level-card.featured:hover{transform:translateY(-2px)}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .timer-digits{font-size:30px}
  .contact-inner{flex-direction:column;padding:32px 20px;gap:32px}
  .faq-card{padding:20px 16px}
  .footer-links{justify-content:flex-start;gap:24px}
  .footer-links .footer-link-group{flex:1 1 40%}
}
@media (max-width:520px){
  .hero-ctas{flex-direction:column;align-items:stretch}
  .hero-ctas .btn{width:100%}
  .trust-item{flex:1 1 40%;justify-content:center}
  .section-head h2{font-size:26px}
  .cta-timer{flex-direction:column;align-items:flex-start}
  .footer-inner{flex-direction:column}
  .footer-links{flex-direction:column}
  .footer-link-group{flex:1 1 100%}
}

/* roulang page: article */
:root {
            --primary: #C6F135;
            --primary-hover: #D9F766;
            --primary-glow: rgba(198, 241, 53, 0.35);
            --accent: #FFB347;
            --bg-dark: #0E141B;
            --bg-deep: #0A1017;
            --bg-card: #18212B;
            --bg-float: #1E2935;
            --bg-light: #F5F7FA;
            --text-main: #E5E9ED;
            --text-sub: #7B8794;
            --text-dark: #1F2A37;
            --text-helper: #4A5768;
            --border-color: #2B3947;
            --border-light: #E5E9ED;
            --radius-card: 12px;
            --radius-btn: 6px;
            --shadow-card: 0 2px 4px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.18);
            --transition: all .2s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: var(--bg-dark);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

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

        .grid-container {
            max-width: 1200px;
        }

        /* ========== 通用按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #131A22;
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 12px var(--primary-glow);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        .btn-outline {
            background: transparent;
            color: #D1D6DC;
            border-color: #3A4755;
        }

        .btn-outline:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
        }

        .btn-sm {
            height: 36px;
            padding: 0 18px;
            font-size: 14px;
        }

        /* ========== Header / 导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 60px;
            background: rgba(10, 16, 23, 0.97);
            border-bottom: 1px solid rgba(198, 241, 53, 0.12);
            backdrop-filter: blur(8px);
        }

        .header-inner {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .5px;
            flex-shrink: 0;
            line-height: 1;
        }

        .brand-green {
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: 16px;
        }

        .nav-link {
            position: relative;
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: #A0ABB8;
            border-radius: 4px;
            transition: var(--transition);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px var(--primary-glow);
            opacity: 0;
            transform: scaleX(.5);
            transition: var(--transition);
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-link.active {
            color: #fff;
        }

        .nav-link.active::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: auto;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 6px;
            color: #fff;
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition);
            align-items: center;
            justify-content: center;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        /* ========== 文章 Hero 面包屑 ========== */
        .article-hero {
            margin-top: 60px;
            background: linear-gradient(130deg, rgba(19, 26, 34, 0.94), rgba(14, 20, 27, 0.82)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 56px 0 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-sub);
            margin-bottom: 24px;
        }

        .breadcrumb a {
            color: #9AA6B2;
            transition: var(--transition);
        }

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

        .breadcrumb .sep {
            font-size: 11px;
            color: #4A5768;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 320px;
        }

        .article-title {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.25;
            color: #fff;
            max-width: 860px;
            margin-bottom: 18px;
            letter-spacing: .02em;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: var(--text-sub);
        }

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

        .article-meta i {
            color: var(--primary);
            font-size: 14px;
        }

        /* ========== 文章正文区 ========== */
        .article-content-section {
            background: var(--bg-light);
            padding: 48px 0 72px;
        }

        .article-col {
            max-width: 800px;
            margin: 0 auto;
        }

        .article-body {
            max-width: 760px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 44px 48px;
            box-shadow: var(--shadow-card);
            color: var(--text-dark);
            font-size: 16px;
            line-height: 1.75;
        }

        .article-body> :first-child {
            margin-top: 0;
        }

        .article-body h1,
        .article-body h2,
        .article-body h3,
        .article-body h4,
        .article-body h5,
        .article-body h6 {
            color: #131A22;
            font-weight: 700;
            margin: 32px 0 16px;
            line-height: 1.35;
        }

        .article-body h2 {
            font-size: 28px;
            padding-bottom: 8px;
            border-bottom: 2px solid #F0F2F5;
        }

        .article-body h3 {
            font-size: 21px;
        }

        .article-body p {
            margin-bottom: 16px;
            color: #2D3A48;
        }

        .article-body a {
            color: #4A7C59;
            border-bottom: 1px solid rgba(74, 124, 89, 0.3);
        }

        .article-body a:hover {
            color: #2F5E3D;
            border-bottom-color: #2F5E3D;
        }

        .article-body img {
            max-width: 100%;
            border-radius: 8px;
            border: 1px solid #E3E8EE;
            margin: 20px 0;
            height: auto;
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: #F8FAFC;
            padding: 14px 20px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
            color: var(--text-helper);
            font-style: italic;
        }

        .article-body blockquote p {
            margin-bottom: 0;
            color: var(--text-helper);
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 16px 22px;
            color: #2D3A48;
        }

        .article-body ul li {
            list-style: disc;
            margin-bottom: 6px;
            padding-left: 2px;
        }

        .article-body ol li {
            list-style: decimal;
            margin-bottom: 6px;
            padding-left: 2px;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 14px;
        }

        .article-body table th,
        .article-body table td {
            border: 1px solid #E3E8EE;
            padding: 10px 12px;
            text-align: left;
        }

        .article-body table th {
            background: #F2F4F7;
            font-weight: 600;
            color: #1F2A37;
        }

        .article-body code {
            background: #F1F3F5;
            border-radius: 4px;
            padding: 2px 6px;
            font-size: 14px;
            color: #C7254E;
            font-family: "SF Mono", Consolas, monospace;
        }

        .article-body pre {
            background: #131A22;
            border-radius: 8px;
            padding: 18px 20px;
            overflow-x: auto;
            color: #D1D6DC;
            margin: 20px 0;
            font-size: 14px;
            line-height: 1.6;
        }

        .article-body pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }

        /* ========== 空态 ========== */
        .article-empty {
            max-width: 760px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 64px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .empty-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: #F1F4F7;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--text-sub);
        }

        .empty-text {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .empty-desc {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 22px;
        }

        /* ========== 风险提示 ========== */
        .article-notice {
            max-width: 760px;
            margin: 32px auto 0;
            background: #F8FAFB;
            border: 1px solid #E3E8EE;
            border-left: 3px solid var(--accent);
            border-radius: 8px;
            padding: 16px 20px;
            display: flex;
            gap: 12px;
            font-size: 13px;
            line-height: 1.6;
            color: var(--text-helper);
        }

        .article-notice i {
            font-size: 18px;
            color: var(--accent);
            margin-top: 2px;
            flex-shrink: 0;
        }

        .article-notice strong {
            display: block;
            font-size: 14px;
            color: #333;
            margin-bottom: 4px;
        }

        .article-notice p {
            margin: 0;
        }

        /* ========== 相关推荐 ========== */
        .article-related {
            max-width: 760px;
            margin: 48px auto 0;
        }

        .article-related h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            padding-bottom: 14px;
            border-bottom: 1px solid #D9DEE4;
            position: relative;
        }

        .article-related h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 46px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 20px;
        }

        .related-card {
            background: #fff;
            border-radius: 10px;
            overflow: hidden;
            border: 1px solid #EDF0F3;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
            display: block;
        }

        .related-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.09);
            border-color: var(--primary);
        }

        .related-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #E8ECEF;
        }

        .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }

        .related-card:hover .related-cover img {
            transform: scale(1.04);
        }

        .related-info {
            padding: 14px 16px;
        }

        .related-info h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card:hover .related-info h3 {
            color: #2F5E3D;
        }

        .related-time {
            font-size: 12px;
            color: var(--text-sub);
            font-feature-settings: "tnum";
        }

        /* ========== 返回入口 ========== */
        .article-nav-links {
            max-width: 760px;
            margin: 36px auto 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .article-nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-dark);
            padding: 10px 18px;
            background: #fff;
            border-radius: var(--radius-btn);
            border: 1px solid #E0E5EA;
            transition: var(--transition);
            font-weight: 500;
        }

        .article-nav-links a:hover {
            border-color: var(--primary);
            color: #2F5E3D;
            box-shadow: 0 0 8px rgba(198, 241, 53, 0.25);
        }

        .article-nav-links .back-link i {
            font-size: 13px;
        }

        .article-nav-links .next-link i {
            font-size: 13px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(198, 241, 53, 0.18);
            padding-top: 56px;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(198, 241, 53, 0.45), transparent);
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1.4fr 2fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.65;
            color: #7B8794;
            max-width: 360px;
        }

        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .footer-link-group h4 {
            font-size: 15px;
            color: #E5E9ED;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .footer-link-group a {
            display: block;
            font-size: 13px;
            color: #7B8794;
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-link-group a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-bottom {
            background: rgba(0, 0, 0, 0.25);
            padding: 18px 0;
        }

        .footer-bottom p {
            font-size: 13px;
            color: #5A6672;
            text-align: center;
            margin: 0;
            letter-spacing: 1px;
        }

        /* ========== 响应式 ========== */
        @media screen and (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .related-card:last-child {
                grid-column: 1 / -1;
                max-width: 50%;
            }
        }

        @media screen and (max-width: 768px) {
            .site-header {
                height: 52px;
            }

            .article-hero {
                margin-top: 52px;
                padding: 40px 0 36px;
            }

            .article-title {
                font-size: 32px;
            }

            .main-nav {
                position: fixed;
                top: 52px;
                left: 0;
                right: 0;
                background: rgba(10, 16, 23, 0.98);
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px 24px;
                gap: 4px;
                transform: translateY(-12px);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                z-index: 99;
                border-bottom: 1px solid rgba(198, 241, 53, 0.15);
                box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
            }

            .main-nav.nav-open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .main-nav .nav-link {
                width: 100%;
                font-size: 15px;
                padding: 12px 14px;
            }

            .main-nav .nav-link::after {
                display: none;
            }

            .nav-actions {
                margin-left: 0;
                gap: 8px;
            }

            .nav-actions .btn-sm {
                padding: 0 14px;
                font-size: 13px;
                height: 34px;
            }

            .nav-toggle {
                display: flex;
            }

            .article-body {
                padding: 28px 20px;
            }

            .article-content-section {
                padding: 32px 0 48px;
            }

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

            .footer-links {
                gap: 20px;
            }

            .article-nav-links {
                justify-content: center;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .brand-logo {
                font-size: 18px;
            }

            .nav-actions .btn-outline {
                display: none;
            }

            .article-title {
                font-size: 26px;
            }

            .breadcrumb .current {
                max-width: 180px;
            }

            .article-body {
                padding: 24px 16px;
                font-size: 15px;
            }

            .article-body h2 {
                font-size: 22px;
            }

            .article-body h3 {
                font-size: 18px;
            }

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

            .related-card:last-child {
                max-width: 100%;
                grid-column: auto;
            }

            .related-cover {
                aspect-ratio: 16 / 8;
            }

            .article-notice {
                flex-direction: column;
                gap: 8px;
            }

            .article-nav-links {
                flex-direction: column;
                width: 100%;
            }

            .article-nav-links a {
                width: 100%;
                justify-content: center;
            }

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

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
            }
        }

/* roulang page: category1 */
:root {
  --color-primary: #C6F135;
  --color-primary-bright: #D9F551;
  --color-accent: #FFB347;
  --color-danger: #E5484D;
  --color-info: #4C6A92;
  --bg-page: #0E141B;
  --bg-card: #18212B;
  --bg-elevated: #1E2935;
  --bg-deep: #0A1017;
  --bg-soft: #F5F7FA;
  --text-main: #E5E9ED;
  --text-soft: #D1D6DC;
  --text-muted: #7B8794;
  --text-dark: #1F2A37;
  --border-color: #2B3947;
  --border-soft: #2A3643;
  --radius-large: 12px;
  --radius-medium: 6px;
  --radius-small: 4px;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-primary: 0 0 0 1px #C6F135, 0 6px 30px rgba(198, 241, 53, 0.12);
  --gap-section: 84px;
  --transition: 200ms ease;
}
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background: var(--bg-page);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.3;
  font-weight: 700;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-medium);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-sm {
  height: 34px;
  padding: 0 14px;
  font-size: 13px;
}
.btn-lg {
  height: 52px;
  padding: 0 34px;
  font-size: 16px;
}
.btn-primary {
  background: var(--color-primary);
  color: #111A10;
}
.btn-primary:hover {
  background: var(--color-primary-bright);
  box-shadow: 0 0 12px rgba(198, 241, 53, 0.4);
}
.btn-outline {
  background: transparent;
  border-color: #4A5768;
  color: var(--text-soft);
}
.btn-outline:hover {
  border-color: #ffffff;
  color: #ffffff;
}
.btn:focus-visible,
.nav-link:focus-visible,
.breadcrumb a:focus-visible,
.accordion-title:focus-visible,
.compare-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #131A22;
  border-bottom: 1px solid var(--border-color);
}
.header-inner {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand-logo {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  white-space: nowrap;
  display: flex;
  align-items: center;
}
.brand-green {
  color: var(--color-primary);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: #A0ABB8;
  position: relative;
  padding: 18px 0 14px;
  transition: color var(--transition);
}
.nav-link:hover {
  color: #ffffff;
}
.nav-link.active {
  color: #ffffff;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--color-primary);
  box-shadow: 0 0 6px rgba(198, 241, 53, 0.7);
}
.nav-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: transparent;
  border: 1px solid #2B3947;
  border-radius: var(--radius-medium);
  color: var(--text-soft);
  font-size: 16px;
  cursor: pointer;
}

/* ========== Page Banner ========== */
.page-banner {
  position: relative;
  background: url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
  border-bottom: 1px solid var(--border-color);
}
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(14, 20, 27, 0.94) 0%, rgba(14, 20, 27, 0.70) 48%, rgba(14, 20, 27, 0.45) 100%);
}
.banner-inner {
  position: relative;
  padding: 60px 0 52px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition);
}
.breadcrumb a:hover {
  color: var(--color-primary);
}
.breadcrumb-sep {
  color: #4A5768;
  font-size: 12px;
}
.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(198, 241, 53, 0.1);
  border: 1px solid rgba(198, 241, 53, 0.35);
  color: var(--color-primary);
  border-radius: var(--radius-small);
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}
.banner-title {
  font-size: 32px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 10px;
}
.banner-sub {
  font-size: 15px;
  color: var(--text-soft);
  max-width: 660px;
  margin: 0;
}

/* ========== Intro Section ========== */
.intro-section {
  padding: 56px 0 20px;
}
.intro-head {
  max-width: 800px;
  margin: 0 auto 40px;
  text-align: center;
}
.intro-head h1 {
  font-size: 40px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 14px;
}
.intro-sub {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 26px;
}
.intro-badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}
.intro-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  color: var(--text-soft);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
}
.intro-badge i {
  color: var(--color-primary);
  font-size: 14px;
}

/* ========== Info Blocks ========== */
.info-blocks-section {
  padding: 40px 0 24px;
}
.info-block {
  margin-bottom: 72px;
}
.info-media {
  position: relative;
  border-radius: var(--radius-large);
  overflow: hidden;
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-card);
}
.info-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform 400ms ease;
}
.info-media:hover img {
  transform: scale(1.03);
}
.info-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 58%, rgba(10, 16, 23, 0.5));
  pointer-events: none;
}
.info-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(12, 18, 24, 0.82);
  border: 1px solid rgba(198, 241, 53, 0.25);
  color: var(--color-primary);
  padding: 5px 12px;
  border-radius: var(--radius-small);
  font-size: 12px;
  font-weight: 500;
}
.info-content {
  padding: 10px 0;
}
.info-content h2 {
  font-size: 30px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 16px;
}
.info-content p {
  color: var(--text-soft);
  line-height: 1.75;
  margin: 0 0 18px;
}
.info-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 7px 0;
  color: var(--text-soft);
  font-size: 15px;
}
.info-list li i {
  color: var(--color-primary);
  width: 18px;
  flex-shrink: 0;
  margin-top: 5px;
  font-size: 14px;
}
.info-content .btn {
  margin-top: 8px;
}

/* ========== Section Head ========== */
.section-head {
  margin-bottom: 32px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: #ffffff;
  text-align: center;
  margin-bottom: 8px;
}
.section-head p {
  text-align: center;
  color: var(--text-muted);
  font-size: 15px;
  margin: 0;
}

/* ========== Mini Compare ========== */
.mini-compare-section {
  padding: 40px 0;
}
.compare-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-large);
  overflow: hidden;
}
.compare-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 28px;
  transition: background var(--transition);
}
.compare-row + .compare-row {
  border-top: 1px solid var(--border-soft);
}
.compare-row:hover {
  background: var(--bg-elevated);
}
.compare-title {
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}
.compare-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 0 10px;
}
.compare-tag {
  display: inline-block;
  background: rgba(255, 179, 71, 0.12);
  border: 1px solid rgba(255, 179, 71, 0.3);
  color: var(--color-accent);
  font-size: 12px;
  padding: 3px 10px;
  border-radius: var(--radius-small);
}
.compare-link {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 500;
  transition: gap var(--transition);
}
.compare-link:hover {
  gap: 10px;
}

/* ========== FAQ Section ========== */
.faq-section {
  padding: 48px 0 72px;
}
.faq-card {
  background: var(--bg-soft);
  border-radius: var(--radius-large);
  padding: 44px;
}
.faq-card .section-head h2 {
  color: var(--text-dark);
}
.faq-card .section-head p {
  color: #4A5768;
}
.accordion .accordion-item {
  background: #ffffff;
  border-radius: var(--radius-medium);
  overflow: hidden;
  margin-bottom: 12px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}
.accordion .accordion-item .accordion-title {
  background: #ffffff;
  color: var(--text-dark);
  height: auto;
  min-height: 48px;
  padding: 13px 54px 13px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  position: relative;
  border-bottom: 1px solid #E9EEF3;
  transition: background var(--transition);
}
.accordion .accordion-item .accordion-title:hover {
  background: #F4F7FA;
  color: var(--text-dark);
}
.accordion .accordion-item.is-active .accordion-title {
  background: #ffffff;
  color: var(--text-dark);
}
.accordion-title::before {
  content: "";
  width: 8px;
  height: 8px;
  border: 2px solid var(--color-primary);
  border-radius: 2px;
  box-sizing: border-box;
  flex-shrink: 0;
}
.accordion-item.is-active .accordion-title::before {
  background: var(--color-primary);
}
.accordion-title::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: 400;
  color: var(--color-primary);
  transition: transform var(--transition);
  line-height: 1;
}
.accordion-item.is-active .accordion-title::after {
  transform: translateY(-50%) rotate(45deg);
}
.accordion .accordion-content {
  background: #ffffff;
  border-top: 1px solid #E9EEF3;
  padding: 16px 18px 18px;
  font-size: 14px;
  line-height: 1.75;
  color: #3A4757;
}
.accordion .accordion-content p {
  margin: 0;
}

/* ========== CTA Banner ========== */
.cta-banner-section {
  padding: 0 0 72px;
}
.cta-banner {
  position: relative;
  background: linear-gradient(135deg, #0A1017 0%, #18212B 55%, #1E2935 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-large);
  padding: 54px 44px;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  right: -90px;
  top: -90px;
  background: radial-gradient(circle, rgba(198, 241, 53, 0.12) 0%, transparent 65%);
  pointer-events: none;
}
.cta-banner h2 {
  font-size: 28px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 12px;
  position: relative;
}
.cta-banner p {
  color: var(--text-muted);
  font-size: 15px;
  margin: 0 0 26px;
  max-width: 620px;
  position: relative;
}
.cta-banner .btn-group {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  position: relative;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(198, 241, 53, 0.2);
  padding-top: 52px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
  padding-bottom: 36px;
}
.footer-brand {
  flex: 1 1 280px;
  max-width: 420px;
}
.footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 13px;
  color: #9AA6B2;
  line-height: 1.75;
  margin: 0;
}
.footer-links {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}
.footer-link-group h4 {
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
}
.footer-link-group a {
  display: block;
  font-size: 13px;
  color: #7B8794;
  padding: 4px 0;
  transition: color var(--transition);
}
.footer-link-group a:hover {
  color: var(--color-primary);
}
.footer-bottom {
  border-top: 1px solid #1B2530;
  padding: 18px 0;
}
.footer-bottom p {
  margin: 0;
  text-align: center;
  font-size: 13px;
  color: #5B6875;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .main-nav {
    gap: 18px;
  }
  .banner-title {
    font-size: 28px;
  }
  .intro-head h1 {
    font-size: 34px;
  }
  .info-content h2 {
    font-size: 26px;
  }
  .cta-banner h2 {
    font-size: 24px;
  }
}
@media (max-width: 768px) {
  .header-inner {
    height: 52px;
  }
  .main-nav {
    position: fixed;
    top: 52px;
    left: 0;
    right: 0;
    background: #131A22;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 16px 24px 20px;
    display: none;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
  }
  .main-nav.open {
    display: flex;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-link {
    padding: 10px 0;
    font-size: 15px;
    width: 100%;
  }
  .nav-link.active::after {
    bottom: 0;
  }
  .banner-inner {
    padding: 44px 0 40px;
  }
  .banner-title {
    font-size: 26px;
  }
  .intro-section {
    padding-top: 44px;
  }
  .intro-head h1 {
    font-size: 30px;
  }
  .info-media img {
    height: 240px;
  }
  .info-block {
    margin-bottom: 52px;
  }
  .info-content h2 {
    font-size: 24px;
  }
  .compare-row {
    flex-direction: column;
    align-items: flex-start;
    padding: 22px;
  }
  .compare-link {
    align-self: flex-start;
  }
  .faq-card {
    padding: 28px 20px;
  }
  .cta-banner {
    padding: 36px 24px;
  }
  .cta-banner h2 {
    font-size: 22px;
  }
  .footer-inner {
    flex-direction: column;
    gap: 36px;
  }
  .footer-links {
    gap: 32px;
  }
}
@media (max-width: 520px) {
  .nav-actions .btn-outline {
    display: none;
  }
  .nav-actions .btn-primary {
    padding: 0 12px;
  }
  .brand-logo {
    font-size: 18px;
  }
  .banner-inner {
    padding: 36px 0 32px;
  }
  .banner-title {
    font-size: 22px;
  }
  .banner-sub {
    font-size: 14px;
  }
  .intro-head h1 {
    font-size: 26px;
  }
  .intro-badge {
    padding: 7px 12px;
    font-size: 12px;
  }
  .info-media img {
    height: 200px;
  }
  .info-content h2 {
    font-size: 22px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .accordion-title::after {
    right: 14px;
  }
  .accordion .accordion-item .accordion-title {
    padding-right: 44px;
    font-size: 14px;
  }
  .cta-banner .btn-group {
    flex-direction: column;
  }
  .cta-banner .btn-group .btn {
    width: 100%;
  }
  .footer-links {
    gap: 24px;
    flex-direction: column;
  }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #C6F135;
            --color-primary-dark: #A8E514;
            --color-accent: #FFB347;
            --color-bg-page: #0E141B;
            --color-bg-card: #18212B;
            --color-bg-deep: #131A22;
            --color-bg-float: #1E2935;
            --color-text: #E5E9ED;
            --color-text-secondary: #A0ABB8;
            --color-text-muted: #7B8794;
            --color-border: #2B3947;
            --radius-card: 12px;
            --radius-small: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.2);
            --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-primary: 0 0 0 1px rgba(198, 241, 53, 0.9), 0 6px 30px rgba(198, 241, 53, 0.12);
            --gap-section: 80px;
            --gap-content: 24px;
            --font-body: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

        /* ===== 基础 Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            background: var(--color-bg-page);
            color: var(--color-text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #D8FF66;
        }
        img {
            max-width: 100%;
            display: block;
            border-radius: var(--radius-card);
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-body);
            font-size: 16px;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #fff;
            margin: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media screen and (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 导航 Header ===== */
        .site-header {
            background: var(--color-bg-deep);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            height: 60px;
            border-bottom: 1px solid rgba(198, 241, 53, 0.18);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }
        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 2px;
        }
        .brand-green {
            color: var(--color-primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color 0.2s ease;
        }
        .nav-link:hover {
            color: #fff;
        }
        .nav-link.active {
            color: #fff;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--color-primary);
            box-shadow: 0 0 8px rgba(198, 241, 53, 0.5);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-small);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            text-align: center;
            white-space: nowrap;
        }
        .btn-sm {
            height: 36px;
            padding: 0 18px;
            font-size: 14px;
        }
        .btn-primary {
            background: var(--color-primary);
            color: var(--color-bg-deep);
            box-shadow: 0 2px 12px rgba(198, 241, 53, 0.2);
        }
        .btn-primary:hover {
            background: #D8FF66;
            color: var(--color-bg-deep);
            box-shadow: 0 0 12px rgba(198, 241, 53, 0.4);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: #E5E9ED;
            border: 1px solid var(--color-border);
        }
        .btn-outline:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
        }
        .btn-lg {
            height: 52px;
            padding: 0 36px;
            font-size: 16px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-tag);
            transition: background 0.2s ease;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        /* ===== 页面 Banner ===== */
        .page-banner {
            margin-top: 60px;
            background: linear-gradient(135deg, rgba(11, 16, 22, 0.92) 0%, rgba(14, 20, 27, 0.55) 70%, rgba(14, 20, 27, 0.2) 100%), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            padding: 120px 0 90px;
            border-bottom: 1px solid rgba(198, 241, 53, 0.08);
            position: relative;
        }
        .page-banner .container {
            max-width: 960px;
            text-align: center;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 18px;
            letter-spacing: 0.02em;
            display: flex;
            justify-content: center;
            gap: 8px;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .separator {
            color: #4A5768;
        }
        .breadcrumb .current {
            color: var(--color-primary);
        }
        .page-banner h1 {
            font-size: 44px;
            letter-spacing: 0.02em;
            line-height: 1.2;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
            margin-bottom: 18px;
        }
        .banner-subtitle {
            font-size: 18px;
            color: var(--color-text-secondary);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.6;
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
        }
        .banner-meta {
            margin-top: 26px;
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(198, 241, 53, 0.1);
            border: 1px solid rgba(198, 241, 53, 0.25);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 13px;
            color: var(--color-primary);
        }
        .banner-tag i {
            font-size: 12px;
        }

        /* ===== 图文介绍区 ===== */
        .guide-section {
            padding: var(--gap-section) 0;
        }
        .guide-intro {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 56px;
        }
        .guide-intro .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(198, 241, 53, 0.08);
            border-radius: 20px;
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-primary);
            margin-bottom: 16px;
        }
        .guide-intro h2 {
            font-size: 34px;
            margin-bottom: 14px;
        }
        .guide-intro p {
            color: var(--color-text-muted);
            font-size: 16px;
            line-height: 1.75;
        }
        .guide-row {
            display: flex;
            align-items: center;
            gap: 64px;
            margin-bottom: 80px;
        }
        .guide-row:last-child {
            margin-bottom: 0;
        }
        .guide-row.reverse {
            flex-direction: row-reverse;
        }
        .guide-media {
            flex: 0 0 50%;
            max-width: 50%;
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .guide-media img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            border-radius: var(--radius-card);
            transition: transform 0.3s ease;
        }
        .guide-media::after {
            content: "";
            position: absolute;
            inset: 0;
            border-radius: var(--radius-card);
            border: 1px solid rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .guide-media:hover img {
            transform: scale(1.03);
        }
        .guide-text {
            flex: 1;
        }
        .guide-text .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(198, 241, 53, 0.08);
            border-radius: var(--radius-tag);
            padding: 4px 12px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 18px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .guide-text h2 {
            font-size: 30px;
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .guide-text p {
            color: var(--color-text-secondary);
            line-height: 1.85;
            margin-bottom: 18px;
            font-size: 16px;
        }
        .guide-list {
            margin-top: 8px;
        }
        .guide-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--color-text-secondary);
            font-size: 15px;
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .guide-list li i {
            color: var(--color-primary);
            font-size: 14px;
            margin-top: 4px;
        }

        /* ===== 统计亮点 ===== */
        .stats-section {
            background: var(--color-bg-deep);
            padding: 64px 0;
            border-top: 1px solid rgba(198, 241, 53, 0.08);
            border-bottom: 1px solid rgba(198, 241, 53, 0.08);
        }
        .stats-section h2 {
            text-align: center;
            font-size: 32px;
            margin-bottom: 48px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            padding: 30px 24px;
            text-align: center;
            border: 1px solid var(--color-border);
            transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
        }
        .stat-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(198, 241, 53, 0.3);
        }
        .stat-number {
            font-size: 40px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.1;
            font-feature-settings: "tnum";
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.5;
        }
        .stat-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(198, 241, 53, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            color: var(--color-primary);
            font-size: 20px;
        }

        /* ===== 套餐对比 ===== */
        .package-section {
            padding: var(--gap-section) 0 56px;
        }
        .package-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .package-header h2 {
            font-size: 32px;
            margin-bottom: 12px;
        }
        .package-header p {
            color: var(--color-text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        .package-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .package-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 32px;
            position: relative;
            overflow: hidden;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        .package-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .package-card.featured {
            border-color: rgba(198, 241, 53, 0.4);
            box-shadow: var(--shadow-primary);
        }
        .package-card.featured::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-primary);
        }
        .package-pill {
            display: inline-block;
            background: rgba(198, 241, 53, 0.12);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .package-name {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .package-desc {
            color: var(--color-text-muted);
            font-size: 14px;
            line-height: 1.65;
            margin-bottom: 20px;
        }
        .package-features {
            margin-bottom: 24px;
        }
        .package-features li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .package-features li i {
            color: var(--color-primary);
            font-size: 12px;
            margin-top: 5px;
        }
        .package-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            padding: 8px 0;
            transition: gap 0.2s ease, color 0.2s ease;
        }
        .package-link:hover {
            color: #D8FF66;
            gap: 10px;
        }

        /* ===== CTA 横幅 ===== */
        .cta-banner {
            margin: 24px 0 80px;
            padding: 64px 0;
            background: linear-gradient(135deg, rgba(19, 26, 34, 0.95) 0%, rgba(24, 33, 43, 0.85) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            border-radius: var(--radius-card);
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: rgba(198, 241, 53, 0.06);
            border-radius: 50%;
            filter: blur(60px);
        }
        .cta-banner .container {
            position: relative;
            text-align: center;
            z-index: 1;
        }
        .cta-banner h2 {
            font-size: 32px;
            margin-bottom: 14px;
        }
        .cta-banner p {
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 16px;
            line-height: 1.7;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 40px 0 80px;
        }
        .faq-section .container {
            max-width: 860px;
        }
        .faq-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .faq-header h2 {
            font-size: 32px;
            margin-bottom: 12px;
        }
        .faq-header p {
            color: var(--color-text-muted);
            max-width: 560px;
            margin: 0 auto;
        }
        .accordion {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
        }
        .accordion-item {
            border-bottom: 1px solid var(--color-border);
            background: transparent;
        }
        .accordion-item:last-child {
            border-bottom: none;
        }
        .accordion-title {
            font-size: 16px;
            font-weight: 600;
            color: #E5E9ED !important;
            padding: 20px 28px !important;
            background: transparent !important;
            border: none !important;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
            transition: color 0.2s ease, background 0.2s ease;
        }
        .accordion-title:hover {
            color: var(--color-primary) !important;
            background: rgba(198, 241, 53, 0.03) !important;
        }
        .accordion-title::before {
            content: "+";
            flex-shrink: 0;
            font-size: 20px;
            font-weight: 400;
            color: var(--color-primary);
            margin-right: 16px;
            transition: transform 0.3s ease;
            order: -1;
            font-family: var(--font-body);
            line-height: 1;
        }
        .accordion-item.is-active .accordion-title::before {
            transform: rotate(45deg);
        }
        .accordion-content {
            background: transparent !important;
            color: var(--color-text-secondary) !important;
            border: none !important;
            padding: 0 28px 24px 60px !important;
            font-size: 15px;
            line-height: 1.75;
        }

        /* ===== 联系区 ===== */
        .contact-section {
            padding: 56px 0 80px;
        }
        .contact-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }
        .contact-info h2 {
            font-size: 28px;
            margin-bottom: 10px;
        }
        .contact-info p {
            color: var(--color-text-muted);
            max-width: 480px;
            font-size: 15px;
            line-height: 1.7;
        }
        .contact-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0A1017;
            border-top: 1px solid rgba(198, 241, 53, 0.12);
            padding: 56px 0 0;
            margin-top: 40px;
        }
        .footer-inner {
            display: flex;
            justify-content: space-between;
            gap: 64px;
            flex-wrap: wrap;
            padding-bottom: 48px;
        }
        .footer-brand {
            flex: 0 0 360px;
            max-width: 360px;
        }
        .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-brand p {
            color: var(--color-text-muted);
            font-size: 14px;
            line-height: 1.7;
        }
        .footer-links {
            display: flex;
            gap: 64px;
            flex-wrap: wrap;
        }
        .footer-link-group h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-link-group a {
            display: block;
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 10px;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }
        .footer-link-group a:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding: 20px 0;
        }
        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        /* ===== 客服浮窗 ===== */
        .support-float {
            position: fixed;
            bottom: 28px;
            right: 28px;
            z-index: 900;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-bg-deep);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 4px 16px rgba(198, 241, 53, 0.3);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        .support-float:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 24px rgba(198, 241, 53, 0.45);
            color: var(--color-bg-deep);
        }

        /* ===== 移动端菜单 ===== */
        @media screen and (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }
            .nav-actions {
                gap: 8px;
            }
            .btn-sm {
                padding: 0 14px;
                font-size: 13px;
            }
            .guide-row,
            .guide-row.reverse {
                flex-direction: column;
                gap: 32px;
            }
            .guide-media {
                flex: 0 0 100%;
                max-width: 100%;
            }
            .guide-media img {
                height: 280px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 768px) {
            .site-header {
                height: 52px;
            }
            .page-banner {
                margin-top: 52px;
                padding: 80px 0 60px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .banner-subtitle {
                font-size: 16px;
            }
            .main-nav {
                position: fixed;
                top: 52px;
                left: 0;
                right: 0;
                background: var(--color-bg-deep);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--color-border);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .nav-link {
                padding: 12px 0;
                font-size: 15px;
            }
            .nav-link.active::after {
                bottom: auto;
                top: 50%;
                transform: translateY(-50%);
                left: -10px;
                right: auto;
                height: 16px;
                width: 3px;
                border-radius: 3px;
            }
            .nav-actions {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .footer-inner {
                flex-direction: column;
                gap: 40px;
            }
            .footer-brand {
                max-width: 100%;
                flex: 1;
            }
            .footer-links {
                gap: 32px;
            }
            .guide-intro h2 {
                font-size: 26px;
            }
            .guide-text h2 {
                font-size: 24px;
            }
            .stats-section h2 {
                font-size: 26px;
            }
            .stat-number {
                font-size: 32px;
            }
            .package-row {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                margin: 16px 0 56px;
                padding: 48px 0;
            }
            .cta-banner h2 {
                font-size: 26px;
            }
            .faq-header h2 {
                font-size: 26px;
            }
            .accordion-title {
                padding: 16px 20px !important;
                font-size: 15px;
            }
            .accordion-content {
                padding: 0 20px 20px 48px !important;
                font-size: 14px;
            }
            .contact-card {
                padding: 32px;
                flex-direction: column;
                align-items: flex-start;
                gap: 24px;
            }
        }
        @media screen and (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .banner-meta {
                flex-direction: column;
                align-items: center;
                gap: 8px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-buttons .btn {
                width: 100%;
            }
            .page-banner {
                padding: 64px 0 44px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .banner-subtitle {
                font-size: 15px;
            }
            .guide-media img {
                height: 220px;
            }
            .package-card {
                padding: 24px;
            }
            .contact-actions {
                flex-direction: column;
                width: 100%;
            }
            .contact-actions .btn {
                width: 100%;
            }
            .support-float {
                bottom: 16px;
                right: 16px;
                width: 44px;
                height: 44px;
                font-size: 16px;
            }
        }

        /* ===== 无障碍 ===== */
        .btn:focus-visible,
        .nav-link:focus-visible,
        .accordion-title:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }