/* roulang page: index */
:root{
  --primary:#2563EB;
  --primary-hover:#1D4ED8;
  --primary-active:#1E40AF;
  --primary-deep:#1E4E8C;
  --primary-deeper:#1A365D;
  --gold:#D4A853;
  --gold-light:rgba(212,168,83,.12);
  --bg-white:#FFFFFF;
  --bg-light:#F7FAFC;
  --bg-hero:#F0F5FB;
  --text-main:#1A202C;
  --text-sub:#4A5568;
  --text-weak:#718096;
  --border:#E2E8F0;
  --radius-card:12px;
  --radius-btn:16px;
  --radius-badge:100px;
  --shadow-card:0 2px 8px rgba(26,32,44,.04);
  --shadow-hover:0 8px 24px rgba(37,99,235,.12);
  --shadow-header:0 2px 6px rgba(0,0,0,.06);
  --transition:.2s ease;
  --font-main:-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","SF Pro Display",-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-main);
  font-size:15px;
  line-height:1.8;
  color:var(--text-main);
  background:var(--bg-white);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--primary-hover);}
img{max-width:100%;height:auto;display:block;}
ul{list-style:none;}
input,button{font-family:inherit;}
:focus{outline:2px solid rgba(37,99,235,.45);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px;}
.section-head h2{font-size:22px;font-weight:700;color:var(--primary-deeper);line-height:1.4;margin-bottom:12px;}
.section-head p{color:var(--text-sub);font-size:15px;}
.btn{
  display:inline-block;
  padding:10px 24px;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:600;
  line-height:1.6;
  text-align:center;
  cursor:pointer;
  border:1px solid transparent;
  transition:background var(--transition),border-color var(--transition),color var(--transition),transform var(--transition),box-shadow var(--transition);
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(37,99,235,.28);}
.btn-primary:active{background:var(--primary-active);border-color:var(--primary-active);transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:#EFF6FF;color:var(--primary-hover);border-color:var(--primary-hover);}
.btn-gold{background:transparent;color:#fff;border-color:var(--gold);}
.btn-gold:hover{background:rgba(212,168,83,.12);color:var(--gold);}

.site-header{position:sticky;top:0;z-index:100;height:72px;background:#fff;border-bottom:1px solid var(--border);transition:box-shadow .3s;}
.site-header.scrolled{box-shadow:var(--shadow-header);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-icon{
  width:36px;height:36px;border-radius:8px;
  background:linear-gradient(135deg,#2563EB,#1E4E8C);
  color:#fff;font-weight:800;font-family:var(--font-num);
  display:flex;align-items:center;justify-content:center;font-size:18px;
  box-shadow:0 4px 10px rgba(37,99,235,.22);
}
.brand-text{font-size:20px;font-weight:800;color:var(--primary-deeper);line-height:1;letter-spacing:.5px;}
.brand-text b{color:var(--primary);font-weight:800;font-size:12px;vertical-align:top;margin-left:3px;letter-spacing:1px;}
.site-nav{display:flex;align-items:center;gap:28px;}
.nav-link{position:relative;font-size:15px;color:var(--text-sub);font-weight:500;padding:8px 0;}
.nav-link:hover{color:var(--primary);}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--primary);}
.header-actions{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;background:var(--bg-light);
  border:1px solid transparent;border-radius:20px;height:36px;padding:0 14px;width:200px;
  transition:border-color var(--transition),box-shadow var(--transition),background var(--transition);
}
.search-box i{color:var(--text-weak);font-size:13px;margin-right:8px;}
.search-box input{border:none;outline:none;background:transparent;font-size:13px;color:var(--text-main);width:100%;}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1);background:#fff;}
.header-actions .btn{padding:8px 20px;font-size:14px;}
.menu-toggle{display:none;background:none;border:none;padding:8px;cursor:pointer;border-radius:6px;}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--text-main);margin:4px 0;transition:var(--transition);border-radius:2px;}
.menu-toggle:hover span{background:var(--primary);}

.hero{
  padding:80px 0 0;
  background:linear-gradient(120deg,#F0F5FB 0%,#E8F0FE 100%);
  position:relative;overflow:hidden;
}
.hero-inner{display:flex;align-items:center;gap:60px;padding-bottom:72px;}
.hero-text{flex:1.1;}
.hero-badge{
  display:inline-block;background:var(--gold-light);color:#B58A3C;
  font-size:12px;font-weight:600;padding:4px 14px;border-radius:var(--radius-badge);margin-bottom:16px;
}
.hero h1{font-size:28px;font-weight:800;color:var(--primary-deeper);line-height:1.4;margin-bottom:16px;}
.hero h1 span{color:var(--primary);}
.hero-sub{font-size:16px;color:var(--text-sub);max-width:520px;margin-bottom:28px;line-height:1.8;}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:36px;}
.hero-trust{display:flex;gap:28px;flex-wrap:wrap;}
.trust-item{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-sub);}
.trust-item i{color:var(--primary);font-size:15px;width:18px;text-align:center;}
.hero-visual{flex:0.9;position:relative;}
.hero-visual img{border-radius:16px;box-shadow:0 20px 40px rgba(30,78,140,.18);position:relative;z-index:1;width:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-overlay{position:absolute;inset:0;border-radius:16px;background:linear-gradient(135deg,rgba(37,99,235,.18),rgba(26,54,93,.08));z-index:2;pointer-events:none;}
.hero-wave{display:block;width:100%;height:64px;margin-bottom:-1px;}

.pain-points{padding:80px 0;background:#fff;}
.pain-inner{display:flex;align-items:center;gap:60px;}
.pain-visual{flex:1;}
.pain-visual img{border-radius:var(--radius-card);box-shadow:var(--shadow-card);width:100%;object-fit:cover;}
.pain-content{flex:1.1;}
.pain-content h2{font-size:22px;font-weight:700;color:var(--primary-deeper);margin-bottom:24px;line-height:1.4;}
.pain-list{display:grid;gap:20px;}
.pain-item{display:flex;gap:14px;align-items:flex-start;}
.pain-icon{
  width:38px;height:38px;border-radius:8px;background:#EFF6FF;color:var(--primary);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:15px;margin-top:2px;
}
.pain-item h4{font-size:15px;font-weight:600;color:var(--text-main);margin-bottom:2px;}
.pain-item p{font-size:13px;color:var(--text-weak);line-height:1.7;}

.solutions{background:var(--bg-light);padding:80px 0;}
.solution-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow-card);
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
  height:100%;
}
.solution-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--primary);}
.solution-icon{
  width:48px;height:48px;border-radius:12px;background:#EFF6FF;color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;
}
.solution-card h3{font-size:16px;font-weight:700;color:var(--text-main);margin-bottom:8px;line-height:1.5;}
.solution-card p{font-size:14px;color:var(--text-sub);line-height:1.7;}

.stats{background:linear-gradient(120deg,var(--primary-deep),var(--primary-deeper));padding:60px 0;}
.stats-item{text-align:center;padding:12px;}
.stats-num{font-family:var(--font-num);font-size:32px;font-weight:800;color:#fff;line-height:1.2;display:block;}
.stats-label{font-size:14px;color:rgba(255,255,255,.75);margin-top:6px;display:block;}

.testimonials{background:#fff;padding:80px 0;}
.testimonial-card{
  background:#fff;border:1px solid var(--border);border-left:2px solid var(--gold);
  border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-card);height:100%;
}
.testimonial-stars{color:var(--gold);font-size:14px;margin-bottom:14px;letter-spacing:2px;}
.testimonial-text{font-size:14px;color:var(--text-weak);line-height:1.8;margin-bottom:20px;}
.testimonial-user{display:flex;align-items:center;gap:12px;}
.testimonial-avatar{
  width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#2563EB,#1E4E8C);
  color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;
}
.testimonial-name{font-size:14px;font-weight:600;color:var(--text-main);}
.testimonial-role{font-size:12px;color:var(--text-weak);}

.latest-news{background:var(--bg-light);padding:80px 0;}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:36px;gap:20px;flex-wrap:wrap;}
.news-head h2{font-size:22px;font-weight:700;color:var(--primary-deeper);}
.news-head .view-all{
  font-size:14px;color:var(--primary);font-weight:600;border:1px solid var(--primary);
  padding:6px 16px;border-radius:var(--radius-badge);transition:var(--transition);display:inline-block;
}
.news-head .view-all:hover{background:#EFF6FF;color:var(--primary-hover);}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.post-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--primary);}
.post-cover{display:block;aspect-ratio:16/9;overflow:hidden;}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s;}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-info{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;}
.post-badge{
  align-self:flex-start;background:var(--gold-light);color:#B58A3C;font-size:12px;font-weight:600;
  padding:3px 10px;border-radius:6px;margin-bottom:10px;
}
.post-title{
  font-size:16px;font-weight:700;line-height:1.5;color:var(--text-main);margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-title a{color:inherit;}
.post-title a:hover{color:var(--primary);}
.post-summary{
  font-size:14px;color:var(--text-weak);line-height:1.7;margin-bottom:16px;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;gap:14px;font-size:12px;color:var(--text-weak);}
.empty-state{
  text-align:center;padding:48px 0;color:var(--text-weak);font-size:15px;grid-column:1 / -1;
  background:#fff;border-radius:var(--radius-card);border:1px dashed var(--border);
}

.faq-section{background:#fff;padding:80px 0;}
.faq-wrap{max-width:780px;margin:0 auto;}
.faq-accordion{border-top:1px solid var(--border);}
.accordion-item{border-bottom:1px solid var(--border);background:#fff;border-radius:0;}
.accordion-title{
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 4px;font-size:16px;font-weight:600;color:var(--text-main);
  cursor:pointer;transition:color var(--transition),background var(--transition);
  background:transparent;border:none;width:100%;text-align:left;
}
.accordion-title:hover{color:var(--primary);background:var(--bg-light);}
.accordion-title i{transition:transform var(--transition);color:var(--text-weak);font-size:13px;margin-left:12px;}
.accordion-item.is-active .accordion-title i{transform:rotate(180deg);}
.accordion-content{padding:0 4px 20px;font-size:14px;color:var(--text-sub);line-height:1.8;display:none;}
.accordion-item.is-active .accordion-content{display:block;}

.cta-section{
  background:linear-gradient(135deg,var(--primary-deeper),#0F2557);
  padding:80px 0;text-align:center;position:relative;overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;top:-60px;right:-60px;width:240px;height:240px;
  border-radius:50%;background:rgba(212,168,83,.08);pointer-events:none;
}
.cta-section h2{color:#fff;font-size:24px;font-weight:700;margin-bottom:12px;position:relative;}
.cta-section p{color:#BBD0EE;font-size:15px;margin-bottom:28px;position:relative;}
.cta-section .btn-gold{padding:12px 36px;font-size:15px;position:relative;}
.cta-section .btn-gold:hover{background:rgba(212,168,83,.16);color:#E7C98A;}
.cta-note{margin-top:20px;font-size:12px;color:rgba(255,255,255,.5);position:relative;}

.site-footer{background:#fff;border-top:1px solid var(--border);}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding:56px 0 40px;border-bottom:1px solid var(--border);}
.footer-brand .brand-text{margin-bottom:12px;}
.footer-brand p{font-size:13px;color:var(--text-weak);margin-top:12px;line-height:1.8;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-main);margin-bottom:14px;}
.footer-col a{display:block;font-size:13px;color:var(--text-weak);padding:5px 0;transition:color var(--transition);}
.footer-col a:hover{color:var(--primary);}
.footer-divider{height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:18px 0;font-size:12px;color:var(--text-weak);flex-wrap:wrap;gap:8px;}
.back-top{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-weak);transition:color var(--transition);}
.back-top:hover{color:var(--primary);}

@media (max-width:1024px){
  .container{padding:0 24px;}
  .search-box{width:160px;}
  .site-nav{gap:18px;}
  .hero-inner{gap:40px;}
  .pain-inner{gap:40px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:24px;}
}
@media (max-width:768px){
  .section{padding:60px 0;}
  .hero{padding:48px 0 0;}
  .hero-inner{flex-direction:column;gap:32px;padding-bottom:56px;}
  .hero-visual{order:2;width:100%;}
  .hero-text{order:1;}
  .hero h1{font-size:24px;}
  .site-header{height:auto;}
  .header-inner{flex-wrap:wrap;padding:12px 20px;height:auto;gap:10px;}
  .site-nav{
    display:none;width:100%;flex-direction:column;gap:0;background:#fff;
    border-top:1px solid var(--border);padding:8px 0;order:4;
  }
  .site-nav.nav-open{display:flex;}
  .nav-link{padding:12px 4px;border-bottom:1px solid #EFF3F8;}
  .nav-link.active::after{display:none;}
  .header-actions{margin-left:auto;}
  .search-box{display:none;}
  .menu-toggle{display:block;}
  .pain-inner{flex-direction:column;gap:32px;}
  .pain-visual{width:100%;}
  .post-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .footer-bottom{flex-direction:column;text-align:center;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .hero h1{font-size:22px;}
  .hero-ctas .btn{width:100%;}
  .hero-trust{gap:14px;}
  .post-grid{grid-template-columns:1fr;}
  .stats-num{font-size:28px;}
  .solution-card{padding:20px;}
  .news-head{flex-direction:column;align-items:flex-start;}
  .section-head h2{font-size:20px;}
  .cta-section h2{font-size:22px;}
  .footer-top{grid-template-columns:1fr;padding:40px 0 24px;}
}

/* roulang page: article */
:root{
  --primary:#2563EB;
  --primary-dark:#1D4ED8;
  --primary-deep:#1E4E8C;
  --primary-darker:#1A365D;
  --accent:#D4A853;
  --bg-white:#FFFFFF;
  --bg-light:#F7FAFC;
  --bg-hero:#F0F5FB;
  --text-main:#1A202C;
  --text-sub:#4A5568;
  --text-weak:#718096;
  --border:#E2E8F0;
  --radius-card:12px;
  --radius-btn:16px;
  --shadow-card:0 2px 8px rgba(26,32,44,0.04);
  --shadow-hover:0 8px 24px rgba(37,99,235,0.12);
  --shadow-nav:0 2px 6px rgba(0,0,0,0.06);
  --font-main:-apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --transition:0.2s ease;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-main);color:var(--text-main);background:var(--bg-white);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color var(--transition)}
a:hover{color:var(--primary)}
button,input{font-family:var(--font-main);outline:none;background:none;border:none}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
#top{scroll-margin-top:90px}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;background:var(--bg-white);
  border-bottom:1px solid var(--border);box-shadow:var(--shadow-nav);
  height:72px;display:flex;align-items:center;
}
.header-inner{
  width:100%;max-width:1280px;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:32px;height:100%;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{
  width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 4px 12px rgba(37,99,235,0.25);
}
.brand-text{font-size:20px;font-weight:700;color:var(--primary-darker);letter-spacing:0.5px;line-height:1.2}
.brand-text b{font-weight:600;color:var(--text-weak);font-size:12px}
.site-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link{
  font-size:15px;font-weight:500;color:var(--text-sub);position:relative;
  padding:8px 2px;line-height:1.3;
}
.nav-link::after{
  content:'';position:absolute;left:0;bottom:-2px;width:0;height:2px;
  background:var(--primary);border-radius:2px;transition:width var(--transition);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.search-box{
  position:relative;width:200px;height:38px;
}
.search-box input{
  width:100%;height:100%;border-radius:20px;background:var(--bg-light);
  border:1px solid transparent;padding:0 16px 0 38px;font-size:13px;color:var(--text-main);
  transition:border-color var(--transition),box-shadow var(--transition);
}
.search-box input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.12);background:#fff}
.search-box i{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  font-size:14px;color:var(--text-weak);pointer-events:none;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:600;padding:10px 24px;border-radius:var(--radius-btn);
  cursor:pointer;transition:all var(--transition);border:1px solid transparent;
  line-height:1.4;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(37,99,235,0.28)}
.btn-primary:active{background:#1E40AF;transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:#EFF6FF;color:var(--primary-dark);border-color:var(--primary-dark)}
.btn-gold{background:transparent;border:1px solid var(--accent);color:#F7E8C6}
.btn-gold:hover{background:rgba(212,168,83,0.12);color:#fff;border-color:#E3C47A;transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:14px}
.menu-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;font-size:20px;color:var(--text-main);border-radius:8px;cursor:pointer}
.menu-toggle:hover{background:var(--bg-light)}

/* ===== 面包屑 ===== */
.breadcrumb-bar{background:var(--bg-light);border-bottom:1px solid var(--border);padding:12px 0}
.breadcrumb-wrap{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-weak);flex-wrap:wrap}
.breadcrumb-wrap a{transition:color var(--transition)}
.breadcrumb-wrap a:hover{color:var(--primary)}
.breadcrumb-wrap .sep{color:#CBD5E0}
.breadcrumb-wrap .current{color:var(--text-sub);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:240px}

/* ===== 文章主体 ===== */
.article-main{padding:44px 0 0;background:var(--bg-white)}
.article-wrap{max-width:780px;margin:0 auto;padding:0 24px}
.article-title{
  font-size:24px;line-height:1.5;font-weight:700;color:var(--primary-darker);
  margin:18px 0 16px;letter-spacing:0.5px;
}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.badge{
  display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;
  color:var(--accent);background:rgba(212,168,83,0.12);
  padding:4px 14px;border-radius:6px;
}
.badge::before{content:'';width:4px;height:4px;border-radius:50%;background:var(--accent)}
.meta-item{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-weak)}
.meta-item i{font-size:13px}
.article-abstract{
  background:var(--bg-light);border-left:3px solid var(--primary);
  border-radius:0 10px 10px 0;padding:16px 22px;margin-bottom:32px;
  font-size:15px;color:var(--text-sub);line-height:1.9;
}
.article-content{
  font-size:15px;color:var(--text-main);line-height:1.8;
  word-break:break-word;
}
.article-content p{margin-bottom:24px;line-height:1.8;font-size:15px;color:var(--text-main)}
.article-content h2{
  font-size:20px;font-weight:700;color:var(--primary-darker);
  margin:36px 0 16px;padding-left:12px;border-left:4px solid var(--primary);line-height:1.4;
}
.article-content h3{
  font-size:17px;font-weight:600;color:var(--primary-deep);
  margin:28px 0 12px;line-height:1.4;
}
.article-content img{border-radius:8px;margin:20px 0;box-shadow:var(--shadow-card)}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--primary-dark)}
.article-content blockquote{
  border-left:4px solid var(--accent);background:var(--bg-light);
  padding:16px 22px;margin:24px 0;border-radius:0 10px 10px 0;
  font-size:15px;color:var(--text-sub);font-style:italic;
}
.article-content ul,.article-content ol{margin:0 0 24px;padding-left:24px}
.article-content li{margin-bottom:8px;line-height:1.8}
.article-content ul li{list-style:disc}
.article-content ol li{list-style:decimal}
.article-content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
.article-content table th,.article-content table td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.article-content table th{background:var(--bg-light);font-weight:600}
.article-content code{
  background:var(--bg-light);border:1px solid var(--border);border-radius:4px;
  padding:2px 8px;font-size:13px;font-family:var(--font-main);
}
.not-found{
  text-align:center;padding:60px 20px;background:var(--bg-light);
  border-radius:var(--radius-card);border:1px dashed var(--border);
}
.not-found p{font-size:18px;color:var(--text-sub);margin-bottom:16px}
.not-found a{color:var(--primary);font-weight:600;font-size:15px}

/* ===== 文章标签 ===== */
.article-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:36px;padding-top:24px;border-top:1px solid var(--border)}
.article-tags .tag{
  font-size:12px;color:var(--text-sub);background:var(--bg-light);
  border:1px solid var(--border);padding:6px 16px;border-radius:100px;
  transition:all var(--transition);
}
.article-tags .tag:hover{color:var(--primary);border-color:var(--primary);background:#EFF6FF;cursor:pointer}
.article-tags .tag-label{font-size:13px;font-weight:600;color:var(--text-sub);margin-right:4px}

/* ===== 相关推荐 ===== */
.related-section{background:var(--bg-light);padding:60px 0;margin-top:50px}
.related-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.related-head h2{
  font-size:20px;font-weight:700;color:var(--primary-darker);
  display:flex;align-items:center;gap:10px;
}
.related-head h2::before{content:'';width:4px;height:22px;background:var(--accent);border-radius:2px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;transition:all var(--transition);display:flex;flex-direction:column;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--primary)}
.related-card .card-img{aspect-ratio:16/9;overflow:hidden;position:relative}
.related-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.related-card:hover .card-img img{transform:scale(1.05)}
.related-card .card-body{padding:16px;flex:1;display:flex;flex-direction:column}
.related-card .card-body h3{font-size:15px;font-weight:600;color:var(--text-main);line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card:hover .card-body h3{color:var(--primary)}
.related-card .card-body .card-date{font-size:12px;color:var(--text-weak);margin-top:auto}

/* ===== CTA 区 ===== */
.cta-section{
  background:linear-gradient(135deg,var(--primary-darker) 0%,var(--primary-deep) 100%);
  padding:64px 0;position:relative;overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;top:-60px;right:-40px;width:280px;height:280px;
  border:1px solid rgba(255,255,255,0.06);border-radius:50%;
}
.cta-section::after{
  content:'';position:absolute;bottom:-90px;left:20%;width:200px;height:200px;
  border:1px solid rgba(255,255,255,0.05);border-radius:50%;
}
.cta-content{text-align:center;position:relative;z-index:1}
.cta-content .pre-title{font-size:13px;color:var(--accent);letter-spacing:2px;margin-bottom:12px;text-transform:uppercase}
.cta-content h2{font-size:26px;color:#fff;font-weight:700;margin-bottom:14px;letter-spacing:1px}
.cta-content p{font-size:15px;color:#AAC4E0;max-width:520px;margin:0 auto 28px;line-height:1.8}
.cta-content .btn-gold{font-size:15px;padding:12px 32px}
.cta-content .cta-note{font-size:12px;color:rgba(255,255,255,0.5);margin-top:14px}

/* ===== 返回链接 ===== */
.back-section{background:var(--bg-light);padding:24px 0;text-align:center}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  color:var(--text-sub);transition:all var(--transition);
}
.back-link:hover{color:var(--primary);gap:12px}
.back-link i{font-size:13px}

/* ===== Footer ===== */
.site-footer{background:var(--bg-white);border-top:1px solid var(--border);padding-top:48px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:36px}
.footer-brand .brand-text{font-size:20px;color:var(--primary-darker)}
.footer-brand p{font-size:13px;color:var(--text-weak);line-height:1.8;margin-top:14px;max-width:300px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-main);margin-bottom:14px;position:relative}
.footer-col a{display:block;font-size:13px;color:var(--text-weak);margin-bottom:10px;transition:color var(--transition)}
.footer-col a:hover{color:var(--primary)}
.footer-divider{height:1px;background:var(--border)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 0 24px;font-size:12px;color:var(--text-weak);
}
.footer-bottom .back-top{color:var(--text-weak);font-size:12px;margin:0 0 0 16px}
.footer-bottom .back-top:hover{color:var(--primary)}

/* ===== 响应式 ===== */
@media screen and (max-width:1023px){
  .header-inner{gap:16px;padding:0 16px}
  .search-box{width:160px}
  .site-nav{gap:18px}
}
@media screen and (max-width:767px){
  .site-header{height:auto;min-height:64px;position:relative}
  .header-inner{flex-wrap:wrap;padding:10px 16px;height:auto;gap:8px;position:relative}
  .logo{flex:1}
  .menu-toggle{display:flex;margin-left:auto}
  .header-actions{display:none;width:100%;flex-direction:column;align-items:stretch;padding-top:8px}
  .header-actions .search-box{width:100%}
  .header-actions .btn{width:100%}
  .site-nav{
    display:none;width:100%;flex-direction:column;align-items:flex-start;
    padding:12px 0;border-top:1px solid var(--border);margin-top:4px;
  }
  .site-nav.nav-open{display:flex}
  .nav-link{width:100%;padding:12px 0;font-size:15px;border-bottom:1px solid #F0F4F8}
  .nav-link:last-child{border-bottom:none}
  .nav-link::after{display:none}
  /* 当菜单展开时显示 actions */
  .header-inner.nav-open .header-actions{display:flex}
  
  .article-title{font-size:20px}
  .article-wrap{padding:0 16px}
  .breadcrumb-wrap .current{max-width:160px}
  .related-grid{grid-template-columns:1fr;gap:16px}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
}
@media screen and (max-width:520px){
  .container{padding:0 16px}
  .header-inner{padding:10px 14px}
  .footer-top{grid-template-columns:1fr;text-align:left}
  .footer-brand p{max-width:100%}
  .cta-content h2{font-size:22px}
  .article-main{padding:28px 0 0}
  .article-content p{font-size:14px}
  .article-abstract{padding:14px 18px;font-size:14px}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-deep: #1A365D;
            --primary-soft: #EFF6FF;
            --primary-banner: #1E4E8C;
            --gold: #D4A853;
            --gold-soft: rgba(212, 168, 83, .12);
            --bg-white: #FFFFFF;
            --bg-light: #F7FAFC;
            --text-main: #1A202C;
            --text-sub: #4A5568;
            --text-weak: #718096;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 2px 8px rgba(26, 32, 44, .04);
            --shadow-hover: 0 8px 24px rgba(37, 99, 235, .12);
            --shadow-nav: 0 2px 6px rgba(0, 0, 0, .06);
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-number: "Inter", "SF Pro Display", -apple-system, sans-serif;
        }
        /* ============ Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        table {
            border-collapse: collapse;
            width: 100%;
        }
        /* ============ Container ============ */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* ============ Header/Nav ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            transition: box-shadow .3s ease;
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-deep));
            color: #fff;
            font-weight: 800;
            font-size: 17px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-number);
            letter-spacing: 0;
        }
        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1;
            letter-spacing: .3px;
        }
        .brand-text b {
            font-size: 11px;
            font-weight: 400;
            color: var(--text-weak);
            margin-left: 2px;
            letter-spacing: 1px;
            vertical-align: baseline;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            padding: 10px 16px;
            border-radius: 8px;
            position: relative;
            transition: color .2s, background .2s;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 3px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .search-box {
            position: relative;
            width: 200px;
        }
        .search-box i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 13px;
            color: var(--text-weak);
            pointer-events: none;
        }
        .search-box input {
            width: 100%;
            height: 38px;
            border-radius: 20px;
            background: var(--bg-light);
            border: 1px solid transparent;
            padding: 0 14px 0 38px;
            font-size: 13px;
            color: var(--text-main);
            transition: all .2s ease;
        }
        .search-box input::placeholder {
            color: var(--text-weak);
        }
        .search-box input:focus {
            background: var(--bg-white);
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .1);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-lg);
            transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 16px rgba(37, 99, 235, .25);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            background: #1E3A8A;
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(37, 99, 235, .35);
            outline-offset: 2px;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text-sub);
            font-size: 16px;
            cursor: pointer;
            transition: all .2s;
        }
        .nav-toggle:hover {
            background: var(--bg-light);
            color: var(--primary);
            border-color: var(--primary);
        }
        .nav-mobile-search {
            display: none;
        }
        /* ============ Page Banner ============ */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, rgba(26, 54, 93, .92) 0%, rgba(30, 78, 140, .88) 60%, rgba(37, 99, 235, .75) 100%),
                url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 72px 0 84px;
            color: #fff;
            overflow: hidden;
        }
        .page-banner::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -1px;
            height: 40px;
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 48' fill='%23ffffff'%3E%3Cpath d='M0 24C120 48 240 48 360 32C480 16 600 0 720 8C840 16 960 48 1080 44C1200 40 1320 16 1440 24V48H0V24Z'/%3E%3C/svg%3E") no-repeat bottom center / cover;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .7);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb i {
            font-size: 10px;
            opacity: .6;
        }
        .page-banner h1 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            letter-spacing: .5px;
            color: #fff;
            max-width: 720px;
            margin-bottom: 14px;
        }
        .banner-desc {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
            max-width: 640px;
        }
        /* ============ Featured Section ============ */
        .featured-section {
            background: var(--bg-white);
            padding: 72px 0 40px;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            gap: 16px;
        }
        .section-head h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
        }
        .section-head p {
            font-size: 14px;
            color: var(--text-weak);
            max-width: 420px;
            text-align: right;
        }
        .featured-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s ease, transform .3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .featured-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }
        .featured-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .featured-card:hover .featured-media img {
            transform: scale(1.03);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            background: var(--gold-soft);
            color: var(--gold);
            font-size: 12px;
            font-weight: 600;
            border-radius: 100px;
            border: 1px solid rgba(212, 168, 83, .25);
        }
        .featured-media .badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 255, 255, .92);
            color: var(--primary-deep);
            box-shadow: 0 2px 8px rgba(0, 0, 0, .08);
        }
        .featured-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .featured-body h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            margin-bottom: 12px;
        }
        .featured-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
        }
        .featured-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 12px;
        }
        .featured-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            transition: gap .2s ease;
        }
        .link-more:hover {
            gap: 10px;
            color: var(--primary-dark);
        }
        /* 右侧垂直列表 */
        .side-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            height: 100%;
        }
        .side-item {
            display: flex;
            gap: 16px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 12px;
            box-shadow: var(--shadow-card);
            transition: all .25s ease;
        }
        .side-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .side-thumb {
            width: 112px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }
        .side-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .side-info {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }
        .side-info h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .2s;
        }
        .side-item:hover .side-info h3 {
            color: var(--primary);
        }
        .side-info p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .side-date {
            font-size: 12px;
            color: var(--text-weak);
        }
        /* ============ Download Section ============ */
        .download-section {
            background: var(--bg-light);
            padding: 72px 0;
        }
        .download-wrap {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            overflow-x: auto;
            overflow-y: hidden;
        }
        .download-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            min-width: 640px;
        }
        .download-table th {
            background: var(--bg-light);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-sub);
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border);
            white-space: nowrap;
            letter-spacing: .3px;
        }
        .download-table td {
            padding: 16px 20px;
            font-size: 14px;
            color: var(--text-main);
            border-bottom: 1px solid var(--border);
            vertical-align: middle;
        }
        .download-table tr:last-child td {
            border-bottom: none;
        }
        .download-table tbody tr {
            transition: background .2s ease;
        }
        .download-table tbody tr:hover {
            background: var(--primary-soft);
        }
        .file-name {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
        }
        .file-name i {
            font-size: 20px;
            color: var(--primary);
        }
        .format-tag {
            display: inline-flex;
            padding: 3px 10px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-sub);
            letter-spacing: .5px;
        }
        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border-radius: 8px;
            transition: all .2s ease;
        }
        .btn-download:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(37, 99, 235, .2);
            color: #fff;
        }
        /* ============ FAQ Section ============ */
        .faq-section {
            background: var(--bg-white);
            padding: 72px 0;
        }
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .accordion {
            background: transparent;
            list-style: none;
        }
        .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color .2s, box-shadow .2s;
        }
        .accordion-item:hover {
            border-color: var(--primary);
        }
        .accordion-item.is-active {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(37, 99, 235, .08);
        }
        .accordion-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            padding: 18px 48px 18px 20px;
            position: relative;
            display: block;
            background: transparent;
            border: none;
            line-height: 1.5;
            transition: color .2s;
        }
        .accordion-title:hover {
            color: var(--primary);
            background: transparent;
        }
        .accordion-title::before {
            content: none;
        }
        .accordion-title::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 12px;
            color: var(--text-weak);
            transition: transform .3s ease, color .3s ease;
        }
        .accordion-item.is-active .accordion-title {
            color: var(--primary);
        }
        .accordion-item.is-active .accordion-title::after {
            transform: translateY(-50%) rotate(180deg);
            color: var(--primary);
        }
        .accordion-content {
            background: var(--bg-light);
            padding: 0 20px 20px;
            font-size: 14px;
            line-height: 1.9;
            color: var(--text-sub);
            border-top: 1px solid var(--border);
        }
        /* ============ CTA ============ */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary-banner) 70%, var(--primary) 120%);
            padding: 64px 0 72px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: .08;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            line-height: 1.5;
            margin-bottom: 14px;
            position: relative;
        }
        .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, .8);
            max-width: 560px;
            margin: 0 auto 30px;
            line-height: 1.8;
            position: relative;
        }
        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 36px;
            border: 2px solid var(--gold);
            border-radius: 50px;
            color: var(--gold);
            font-size: 15px;
            font-weight: 600;
            background: transparent;
            transition: all .3s ease;
            cursor: pointer;
            position: relative;
        }
        .btn-gold:hover {
            background: rgba(212, 168, 83, .14);
            color: var(--gold);
            box-shadow: 0 8px 24px rgba(212, 168, 83, .2);
            transform: translateY(-2px);
        }
        .cta-note {
            font-size: 12px;
            color: rgba(255, 255, 255, .5);
            margin-top: 20px;
            line-height: 1.5;
            position: relative;
        }
        /* ============ Footer ============ */
        .site-footer {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            padding-top: 56px;
        }
        .footer-top {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand {
            flex: 1 1 280px;
            max-width: 320px;
        }
        .footer-brand .brand-text {
            font-size: 20px;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.8;
        }
        .footer-col {
            flex: 1 1 150px;
            min-width: 130px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: .3px;
        }
        .footer-col a {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-sub);
            padding: 4px 0;
            transition: color .2s, padding-left .2s;
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-divider {
            height: 1px;
            background: var(--border);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 20px 0 24px;
            font-size: 12px;
            color: var(--text-weak);
        }
        .footer-bottom .back-top {
            color: var(--text-sub);
        }
        .footer-bottom .back-top:hover {
            color: var(--primary);
        }
        .back-top i {
            font-size: 11px;
        }
        /* ============ 响应式 ============ */
        @media (max-width: 1023px) {
            .header-inner {
                height: 64px;
            }
            .site-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                z-index: 99;
                background: var(--bg-white);
                padding: 16px 24px 20px;
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 24px rgba(0, 0, 0, .08);
                margin-left: 0;
            }
            .site-nav.nav-open {
                display: flex;
            }
            .site-nav .nav-link {
                display: block;
                padding: 12px 12px;
                border-radius: 8px;
            }
            .site-nav .nav-link.active {
                background: var(--primary-soft);
            }
            .site-nav .nav-link.active::after {
                display: none;
            }
            .nav-mobile-search {
                display: block;
                margin-top: 12px;
                position: relative;
            }
            .nav-mobile-search i {
                position: absolute;
                left: 14px;
                top: 50%;
                transform: translateY(-50%);
                font-size: 13px;
                color: var(--text-weak);
            }
            .nav-mobile-search input {
                width: 100%;
                height: 40px;
                border-radius: 20px;
                background: var(--bg-light);
                border: 1px solid var(--border);
                padding: 0 14px 0 38px;
                font-size: 13px;
                transition: all .2s;
            }
            .nav-mobile-search input:focus {
                border-color: var(--primary);
                background: var(--bg-white);
                box-shadow: 0 0 0 3px rgba(37, 99, 235, .1);
            }
            .header-tools .search-box {
                display: none;
            }
            .header-tools .btn-primary {
                padding: 9px 18px;
                font-size: 13px;
            }
            .nav-toggle {
                display: flex;
            }
            .page-banner {
                padding: 56px 0 72px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .featured-section,
            .download-section,
            .faq-section {
                padding: 56px 0;
            }
            .featured-body h2 {
                font-size: 18px;
            }
        }
        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-text {
                font-size: 18px;
            }
            .brand-icon {
                width: 28px;
                height: 28px;
                font-size: 14px;
                border-radius: 6px;
            }
            .header-tools .btn-primary {
                padding: 8px 14px;
                font-size: 12px;
                border-radius: 12px;
            }
            .page-banner {
                padding: 44px 0 60px;
            }
            .page-banner h1 {
                font-size: 20px;
                line-height: 1.5;
            }
            .banner-desc {
                font-size: 14px;
            }
            .breadcrumb {
                font-size: 12px;
                margin-bottom: 16px;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .section-head p {
                text-align: left;
                font-size: 13px;
            }
            .featured-section {
                padding: 44px 0 24px;
            }
            .featured-body {
                padding: 18px;
            }
            .featured-body h2 {
                font-size: 17px;
            }
            .side-item {
                padding: 10px;
            }
            .side-thumb {
                width: 92px;
                height: 68px;
            }
            .side-info p {
                display: none;
            }
            .download-section,
            .faq-section,
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 20px;
            }
            .cta-desc {
                font-size: 14px;
            }
            .btn-gold {
                padding: 11px 28px;
                font-size: 14px;
            }
            .footer-top {
                gap: 24px;
                padding-bottom: 28px;
            }
            .footer-brand {
                flex-basis: 100%;
                max-width: 100%;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }
        @media (max-width: 420px) {
            .header-tools .btn-primary {
                padding: 8px 12px;
                font-size: 12px;
                border-radius: 10px;
            }
            .brand-text {
                font-size: 17px;
            }
            .brand-text b {
                font-size: 10px;
            }
            .featured-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }
        /* Focus 可见状态 */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(37, 99, 235, .4);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .download-table a:focus-visible,
        .accordion-title:focus-visible {
            outline: 3px solid rgba(37, 99, 235, .4);
            outline-offset: -2px;
        }

/* roulang page: category2 */
:root{
  --primary:#2563EB;
  --primary-dark:#1E4E8C;
  --primary-deeper:#1A365D;
  --gold:#D4A853;
  --gold-light:rgba(212,168,83,.12);
  --bg-white:#FFFFFF;
  --bg-light:#F7FAFC;
  --bg-soft:#F0F5FB;
  --text-main:#1A202C;
  --text-sub:#4A5568;
  --text-weak:#718096;
  --border:#E2E8F0;
  --radius:12px;
  --radius-sm:8px;
  --radius-btn:16px;
  --shadow-card:0 2px 8px rgba(26,32,44,.04);
  --shadow-hover:0 8px 24px rgba(37,99,235,.12);
  --shadow-nav:0 2px 6px rgba(0,0,0,.06);
  --transition:.2s ease;
  --font-family:-apple-system,BlinkMacSystemFont,"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);
  font-size:15px;
  line-height:1.8;
  color:var(--text-main);
  background:var(--bg-white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--primary-dark);}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:72px 0;}
.section-alt{background:var(--bg-light);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:22px;
  font-weight:700;
  line-height:1.4;
  color:var(--text-main);
  letter-spacing:.5px;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:4px;
  bottom:4px;
  width:4px;
  border-radius:2px;
  background:var(--gold);
}
.section-head .head-desc{
  font-size:14px;
  color:var(--text-weak);
  max-width:420px;
  text-align:right;
  line-height:1.7;
}
.text-center{text-align:center;}
.text-center.section-head{justify-content:center;}
.text-center.section-head h2::before{left:50%;transform:translateX(-50%);}
@media screen and (max-width:639px){
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head .head-desc{text-align:left;}
}

/* ===== Header 导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--bg-white);
  border-bottom:1px solid var(--border);
  height:72px;
  display:flex;
  align-items:center;
  box-shadow:var(--shadow-nav);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  font-size:20px;
  font-weight:700;
  color:var(--primary-deeper);
  letter-spacing:.5px;
}
.brand-icon{
  width:34px;
  height:34px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  font-weight:700;
}
.brand b{
  font-size:12px;
  font-weight:600;
  color:var(--text-weak);
  margin-left:2px;
}
.site-nav{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1;
}
.nav-link{
  padding:8px 16px;
  font-size:15px;
  color:var(--text-sub);
  font-weight:500;
  border-radius:8px;
  transition:color var(--transition),background var(--transition);
}
.nav-link:hover{
  color:var(--primary);
  background:var(--bg-light);
}
.nav-link.active{
  color:var(--primary);
  font-weight:600;
  position:relative;
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:auto;
}
.nav-search{
  position:relative;
  width:200px;
}
.nav-search input{
  width:100%;
  height:36px;
  border:1px solid var(--border);
  border-radius:18px;
  background:var(--bg-light);
  padding:0 38px 0 14px;
  font-size:13px;
  color:var(--text-main);
  outline:none;
  transition:border var(--transition),box-shadow var(--transition),background var(--transition);
}
.nav-search input::placeholder{color:var(--text-weak);}
.nav-search input:focus{
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 3px rgba(37,99,235,.1);
}
.nav-search i{
  position:absolute;
  right:14px;
  top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--text-weak);
  pointer-events:none;
}
.btn-header{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 22px;
  border-radius:16px;
  background:var(--primary);
  color:#fff;
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:background var(--transition),transform var(--transition),box-shadow var(--transition);
  border:none;
  cursor:pointer;
}
.btn-header:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 6px 16px rgba(37,99,235,.25);
}
.btn-header:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border:1px solid var(--border);
  border-radius:10px;
  background:#fff;
  color:var(--text-main);
  font-size:18px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  transition:background var(--transition),border var(--transition);
}
.nav-toggle:hover{background:var(--bg-light);border-color:var(--primary);}
@media screen and (max-width:1023px){
  .nav-search{width:160px;}
}
@media screen and (max-width:767px){
  .site-header{height:64px;}
  .header-inner{gap:12px;}
  .brand{font-size:18px;}
  .brand b{display:none;}
  .header-actions .nav-search{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .site-nav{
    position:absolute;
    top:64px;
    left:0;
    right:0;
    background:#fff;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-nav);
    padding:12px;
    flex-direction:column;
    display:none;
    gap:4px;
  }
  .site-nav.nav-open{display:flex;}
  .nav-link{
    display:block;
    width:100%;
    padding:12px 16px;
    text-align:left;
    font-size:15px;
  }
  .nav-link.active::after{display:none;}
  .nav-link.active{background:var(--bg-light);}
  .btn-header{padding:0 16px;font-size:13px;}
}

/* ===== 分类页 Hero ===== */
.page-hero{
  background:linear-gradient(135deg,var(--primary-deeper) 0%,var(--primary-dark) 60%,var(--primary) 120%);
  padding:56px 0 48px;
  position:relative;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-80px;
  right:-60px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:rgba(212,168,83,.1);
}
.page-hero::after{
  content:"";
  position:absolute;
  bottom:-120px;
  left:30%;
  width:280px;
  height:280px;
  border-radius:50%;
  background:rgba(255,255,255,.04);
}
.page-hero .container{position:relative;z-index:2;}
.hero-breadcrumb{
  font-size:13px;
  color:rgba(255,255,255,.6);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:6px;
}
.hero-breadcrumb i{font-size:10px;color:rgba(255,255,255,.4);}
.hero-breadcrumb a{color:rgba(255,255,255,.75);}
.hero-breadcrumb a:hover{color:#fff;}
.page-hero h1{
  font-size:27px;
  font-weight:700;
  color:#fff;
  line-height:1.4;
  letter-spacing:.5px;
  margin-bottom:12px;
}
.page-hero .hero-sub{
  font-size:16px;
  color:rgba(255,255,255,.85);
  max-width:680px;
  line-height:1.8;
}
.page-hero .hero-stats{
  display:flex;
  gap:40px;
  margin-top:30px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  flex-wrap:wrap;
}
.hero-stat-item .stat-num{
  font-size:26px;
  font-weight:700;
  color:#fff;
  font-family:Inter,"SF Pro Display",sans-serif;
  line-height:1.2;
}
.hero-stat-item .stat-label{
  font-size:13px;
  color:rgba(255,255,255,.68);
  margin-top:2px;
}
@media screen and (max-width:639px){
  .page-hero{padding:40px 0 36px;}
  .page-hero h1{font-size:21px;}
  .page-hero .hero-sub{font-size:14px;}
  .hero-stats{gap:20px;margin-top:22px;}
  .hero-stat-item .stat-num{font-size:20px;}
}

/* ===== 双列信息杂志区 ===== */
.magazine-section{background:var(--bg-white);}
.magazine-grid{
  display:grid;
  grid-template-columns:1.55fr 1fr;
  gap:24px;
}
.mag-feature{
  border-radius:var(--radius);
  border:1px solid var(--border);
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow-card);
  transition:box-shadow var(--transition),transform var(--transition),border-color var(--transition);
  display:flex;
  flex-direction:column;
}
.mag-feature:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  border-color:var(--primary);
}
.mag-feature .cover-wrap{
  position:relative;
  aspect-ratio:16/8;
  overflow:hidden;
}
.mag-feature .cover-wrap img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.mag-feature:hover .cover-wrap img{transform:scale(1.03);}
.mag-feature .cover-overlay{
  position:absolute;
  left:16px;
  bottom:14px;
  display:flex;
  gap:8px;
}
.badge-feature{
  background:rgba(212,168,83,.15);
  color:var(--gold);
  font-size:12px;
  padding:4px 12px;
  border-radius:6px;
  font-weight:600;
  line-height:1.5;
  border:1px solid rgba(212,168,83,.25);
}
.mag-feature .feature-body{padding:22px 24px 26px;}
.mag-feature .feature-body h3{
  font-size:19px;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:10px;
  line-height:1.5;
}
.mag-feature .feature-body h3 a{color:inherit;}
.mag-feature .feature-body h3 a:hover{color:var(--primary);}
.mag-feature .feature-body p{
  font-size:14px;
  color:var(--text-sub);
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.mag-feature .meta-row{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:12px;
  color:var(--text-weak);
  border-top:1px solid var(--bg-light);
  padding-top:14px;
}
.mag-feature .meta-row i{color:var(--primary);font-size:13px;margin-right:4px;}
.mag-list{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.mag-list-item{
  display:flex;
  gap:16px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  align-items:center;
  box-shadow:var(--shadow-card);
  transition:box-shadow var(--transition),border-color var(--transition),transform var(--transition);
}
.mag-list-item:hover{
  box-shadow:var(--shadow-hover);
  border-color:var(--primary);
  transform:translateY(-2px);
}
.mag-list-item .thumb{
  width:92px;
  height:68px;
  border-radius:8px;
  object-fit:cover;
  flex-shrink:0;
}
.mag-list-item .list-body h4{
  font-size:15px;
  font-weight:600;
  color:var(--text-main);
  line-height:1.45;
  margin-bottom:6px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mag-list-item .list-body h4 a{color:inherit;}
.mag-list-item .list-body h4 a:hover{color:var(--primary);}
.mag-list-item .list-body p{
  font-size:13px;
  color:var(--text-weak);
  line-height:1.55;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mag-list-item .list-icon{
  width:40px;
  height:40px;
  border-radius:10px;
  background:var(--bg-soft);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  flex-shrink:0;
}
@media screen and (max-width:960px){
  .magazine-grid{grid-template-columns:1fr;}
  .mag-feature .cover-wrap{aspect-ratio:16/7;}
}
@media screen and (max-width:520px){
  .mag-list-item{flex-direction:column;align-items:flex-start;}
  .mag-list-item .thumb{width:100%;height:auto;aspect-ratio:16/6;}
}

/* ===== 服务保障 ===== */
.guarantee-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.guarantee-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:26px 22px;
  box-shadow:var(--shadow-card);
  transition:box-shadow var(--transition),transform var(--transition),border-color var(--transition);
}
.guarantee-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  border-color:var(--primary);
}
.guarantee-icon{
  width:52px;
  height:52px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--bg-soft),#E6EEF8);
  color:var(--primary);
  font-size:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
}
.guarantee-card h3{
  font-size:16px;
  font-weight:650;
  color:var(--text-main);
  margin-bottom:8px;
}
.guarantee-card p{
  font-size:13px;
  color:var(--text-sub);
  line-height:1.75;
}
@media screen and (max-width:1023px){
  .guarantee-grid{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:520px){
  .guarantee-grid{grid-template-columns:1fr;gap:14px;}
}

/* ===== 登录流程 ===== */
.steps-wrap{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  counter-reset:step;
}
.step-item{
  position:relative;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:26px 22px 22px;
  box-shadow:var(--shadow-card);
  transition:box-shadow var(--transition),transform var(--transition),border-color var(--transition);
}
.step-item:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  border-color:var(--gold);
}
.step-item::before{
  counter-increment:step;
  content:"0" counter(step);
  font-family:Inter,"SF Pro Display",sans-serif;
  font-size:30px;
  font-weight:700;
  color:var(--gold);
  opacity:.9;
  line-height:1;
  display:block;
  margin-bottom:14px;
}
.step-item h3{
  font-size:16px;
  font-weight:650;
  color:var(--text-main);
  margin-bottom:8px;
}
.step-item p{
  font-size:13px;
  color:var(--text-sub);
  line-height:1.7;
}
.step-line{
  position:absolute;
  right:-18px;
  top:45px;
  width:18px;
  height:1px;
  background:var(--border);
}
.step-item:last-child .step-line{display:none;}
@media screen and (max-width:960px){
  .steps-wrap{grid-template-columns:repeat(2,1fr);gap:18px;}
  .step-line{display:none;}
}
@media screen and (max-width:520px){
  .steps-wrap{grid-template-columns:1fr;}
}

/* ===== 资料下载 ===== */
.download-wrap{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.download-table{
  width:100%;
  border-collapse:collapse;
  font-size:14px;
}
.download-table thead th{
  background:var(--bg-light);
  color:var(--text-sub);
  font-size:13px;
  font-weight:600;
  text-align:left;
  padding:14px 20px;
  border-bottom:1px solid var(--border);
  letter-spacing:.5px;
}
.download-table tbody td{
  padding:14px 20px;
  border-bottom:1px solid var(--bg-light);
  color:var(--text-sub);
  vertical-align:middle;
}
.download-table tbody tr:last-child td{border-bottom:none;}
.download-table tbody tr:hover{background:var(--bg-light);}
.download-file a{
  color:var(--primary);
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.download-file a:hover{color:var(--primary-dark);}
.download-file a i{color:var(--gold);font-size:14px;}
.download-meta{
  font-size:13px;
  color:var(--text-weak);
  display:flex;
  align-items:center;
  gap:6px;
}
.download-meta i{color:var(--primary);font-size:12px;}
@media screen and (max-width:639px){
  .download-table thead{display:none;}
  .download-table,.download-table tbody,.download-table tr,.download-table td{display:block;width:100%;}
  .download-table tbody tr{border-bottom:1px solid var(--border);padding:10px 0;}
  .download-table tbody tr:last-child{border-bottom:none;}
  .download-table tbody td{padding:8px 16px;border:none;}
  .download-meta{justify-content:flex-start;}
}

/* ===== FAQ ===== */
.faq-wrap{
  max-width:840px;
  margin:0 auto;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.faq-wrap .accordion-item{
  border-bottom:1px solid var(--bg-light);
}
.faq-wrap .accordion-item:last-child{border-bottom:none;}
.faq-wrap .accordion-title{
  font-size:15px;
  font-weight:550;
  color:var(--text-main);
  padding:18px 50px 18px 22px;
  background:#fff;
  transition:background var(--transition),color var(--transition);
  position:relative;
}
.faq-wrap .accordion-title::after{
  content:"\f107";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  color:var(--text-weak);
  transition:transform var(--transition),color var(--transition);
  font-size:14px;
}
.faq-wrap .accordion-item.is-active .accordion-title{
  background:var(--bg-light);
  color:var(--primary);
}
.faq-wrap .accordion-item.is-active .accordion-title::after{
  transform:translateY(-50%) rotate(180deg);
  color:var(--primary);
}
.faq-wrap .accordion-content{
  background:var(--bg-light);
  padding:0 22px 20px;
  font-size:14px;
  color:var(--text-sub);
  line-height:1.85;
}
.faq-wrap .accordion-content a{color:var(--primary);font-weight:500;}
@media screen and (max-width:520px){
  .faq-wrap .accordion-title{font-size:14px;padding:16px 44px 16px 16px;}
}

/* ===== CTA 区块 ===== */
.cta-section{
  background:linear-gradient(135deg,var(--primary-deeper) 0%,var(--primary-dark) 70%,var(--primary) 130%);
  padding:64px 0;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  top:-40px;
  left:-40px;
  width:200px;
  height:200px;
  border-radius:50%;
  background:rgba(212,168,83,.08);
}
.cta-section::after{
  content:"";
  position:absolute;
  bottom:-60px;
  right:-20px;
  width:180px;
  height:180px;
  border-radius:50%;
  background:rgba(255,255,255,.04);
}
.cta-section .container{position:relative;z-index:2;}
.cta-section h2{
  font-size:24px;
  font-weight:700;
  color:#fff;
  margin-bottom:12px;
  letter-spacing:.5px;
}
.cta-section p{
  font-size:15px;
  color:rgba(255,255,255,.78);
  max-width:600px;
  margin:0 auto 28px;
  line-height:1.8;
}
.btn-gold{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 32px;
  border-radius:18px;
  border:1px solid var(--gold);
  color:var(--gold);
  font-size:15px;
  font-weight:600;
  background:transparent;
  cursor:pointer;
  transition:background var(--transition),color var(--transition),transform var(--transition),box-shadow var(--transition);
}
.btn-gold:hover{
  background:rgba(212,168,83,.12);
  color:var(--gold);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(212,168,83,.2);
}
.cta-note{
  font-size:12px;
  color:rgba(255,255,255,.5);
  margin-top:18px;
  letter-spacing:.3px;
}
@media screen and (max-width:520px){
  .cta-section{padding:48px 0;}
  .cta-section h2{font-size:20px;}
  .btn-gold{width:100%;}
}

/* ===== Footer ===== */
.site-footer{
  background:var(--bg-white);
  border-top:3px solid var(--bg-light);
}
.footer-top{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
  padding:48px 0 36px;
}
.footer-brand .brand-text{
  font-size:19px;
  font-weight:700;
  color:var(--primary-deeper);
  display:block;
  margin-bottom:12px;
}
.footer-brand .brand-text b{
  font-size:12px;
  font-weight:600;
  color:var(--text-weak);
}
.footer-brand p{
  font-size:13px;
  color:var(--text-sub);
  line-height:1.8;
  max-width:300px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-main);
  margin-bottom:14px;
  position:relative;
  padding-bottom:8px;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:24px;
  height:2px;
  background:var(--gold);
  border-radius:2px;
}
.footer-col a{
  display:block;
  font-size:13px;
  color:var(--text-sub);
  padding:4px 0;
  transition:color var(--transition),padding-left var(--transition);
}
.footer-col a:hover{
  color:var(--primary);
  padding-left:4px;
}
.footer-col a.back-top{color:var(--primary);font-weight:500;}
.footer-divider{
  height:1px;
  background:var(--border);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  padding:20px 0 28px;
  font-size:12px;
  color:var(--text-weak);
}
.footer-bottom a{color:var(--text-weak);}
.footer-bottom a:hover{color:var(--primary);}
.footer-bottom .back-top i{margin-right:4px;}
@media screen and (max-width:960px){
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
}
@media screen and (max-width:520px){
  .footer-top{grid-template-columns:1fr;gap:24px;padding:36px 0 24px;}
  .footer-bottom{flex-direction:column;text-align:center;padding:16px 0 24px;}
}

/* ===== 通用按钮 ===== */
.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 26px;
  border-radius:var(--radius-btn);
  background:var(--primary);
  color:#fff;
  font-size:14px;
  font-weight:600;
  border:none;
  cursor:pointer;
  transition:background var(--transition),transform var(--transition),box-shadow var(--transition);
}
.btn-primary:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(37,99,235,.22);
}
.btn-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 26px;
  border-radius:var(--radius-btn);
  background:#fff;
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  border:1px solid var(--primary);
  cursor:pointer;
  transition:background var(--transition),color var(--transition),border var(--transition),transform var(--transition);
}
.btn-outline:hover{
  background:var(--bg-soft);
  color:var(--primary-dark);
  border-color:var(--primary-dark);
  transform:translateY(-2px);
}