/* roulang page: index */
:root{
  --brand:#1f5ad6;
  --brand-mid:#3f78ea;
  --brand-dark:#0f3178;
  --brand-soft:#e9f0ff;
  --brand-soft-2:#f2f6ff;
  --ink:#0f1b33;
  --ink-2:#4a5b78;
  --ink-3:#7788a5;
  --line:#e2e9f5;
  --bg:#f5f8fd;
  --white:#ffffff;
  --radius:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(15,49,120,.06);
  --shadow:0 14px 36px rgba(15,49,120,.10);
  --shadow-lg:0 24px 60px rgba(15,49,120,.14);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Segoe UI",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0 0 12px;line-height:1.35;font-weight:700;letter-spacing:-.2px;color:var(--ink);}
h1{font-size:34px;}
h2{font-size:26px;}
h3{font-size:18px;}
p{margin:0 0 12px;color:var(--ink-2);}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--brand);}
img{max-width:100%;height:auto;display:block;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-mid);outline-offset:3px;border-radius:6px;}

.site-container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
.section{padding:68px 0;}
.section--white{background:var(--white);}
.section--tight{padding:48px 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{margin-bottom:10px;}
.section-head p{margin:0;font-size:15.5px;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.6px;
  color:var(--brand);background:var(--brand-soft);border-radius:999px;
  padding:5px 12px;margin-bottom:14px;
}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px;}
.brand{display:flex;align-items:center;gap:11px;min-width:0;}
.brand-mark{
  width:40px;height:40px;flex:0 0 auto;border-radius:12px;
  background:linear-gradient(135deg,#3f78ea,#0f3178);
  color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;
  letter-spacing:.5px;box-shadow:0 6px 16px rgba(31,90,214,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap;}
.brand-sub{font-size:11.5px;color:var(--ink-3);letter-spacing:.3px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  padding:8px 15px;border-radius:999px;font-size:15px;color:var(--ink-2);font-weight:500;
}
.nav-links a:hover{background:var(--brand-soft-2);color:var(--brand);}
.nav-links a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.nav-cta{
  margin-left:8px;padding:9px 18px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:#fff;background:linear-gradient(135deg,#3f78ea,#1f5ad6);
  box-shadow:0 8px 20px rgba(31,90,214,.26);white-space:nowrap;
}
.nav-cta:hover{color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(31,90,214,.34);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;
  border-radius:12px;padding:0;margin-left:auto;cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.2s;}

/* 按钮 */
.yx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;
}
.yx-btn--primary{
  color:#fff;background:linear-gradient(135deg,#3f78ea,#1f5ad6);
  box-shadow:0 10px 24px rgba(31,90,214,.26);
}
.yx-btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(31,90,214,.34);}
.yx-btn--ghost{
  color:var(--brand);background:#fff;border-color:#cddcf7;
}
.yx-btn--ghost:hover{color:var(--brand-dark);background:var(--brand-soft);border-color:#b6cdf5;}
.yx-btn--block{width:100%;}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:58px 0 66px;
  background:linear-gradient(180deg,#eaf2ff 0%,#f6f9ff 58%,var(--bg) 100%);
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,120,234,.16),rgba(63,120,234,0) 70%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);
  gap:44px;align-items:start;
}
.hero h1{font-size:33px;line-height:1.32;margin-bottom:16px;color:var(--brand-dark);}
.hero-lead{font-size:15.5px;color:var(--ink-2);margin-bottom:22px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;}
.hero-points li{
  font-size:13px;color:var(--brand-dark);background:#fff;border:1px solid #d9e5fa;
  border-radius:999px;padding:6px 14px;box-shadow:var(--shadow-sm);
}
.hero-panel{
  background:#fff;border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--shadow);padding:24px;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
.panel-head h2{font-size:16px;margin:0;}
.panel-tag{
  font-size:12px;color:var(--brand);background:var(--brand-soft);
  border-radius:999px;padding:4px 10px;font-weight:600;white-space:nowrap;
}
.ring-block{display:flex;align-items:center;gap:18px;margin-bottom:20px;}
.ring{
  width:132px;height:132px;flex:0 0 auto;border-radius:50%;
  background:conic-gradient(#2f6cf0 0 33.3%,#6f9bf5 33.3% 66.6%,#c7d8fb 66.6% 100%);
  display:grid;place-items:center;
}
.ring-core{
  width:102px;height:102px;border-radius:50%;background:#fff;
  display:grid;place-items:center;text-align:center;
  box-shadow:inset 0 0 0 1px var(--line);
}
.ring-core strong{display:block;font-size:19px;color:var(--brand-dark);line-height:1.2;}
.ring-core span{font-size:11px;color:var(--ink-3);letter-spacing:.4px;}
.ring-legend{min-width:0;}
.ring-legend p{font-size:13.5px;margin:0 0 8px;color:var(--ink-2);}
.ring-legend strong{color:var(--ink);}
.tier-list{display:grid;gap:10px;margin-bottom:18px;}
.tier{
  display:flex;align-items:flex-start;gap:10px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:10px 12px;background:var(--brand-soft-2);
}
.tier-num{
  width:24px;height:24px;flex:0 0 auto;border-radius:8px;background:#fff;
  color:var(--brand);display:grid;place-items:center;font-size:12.5px;font-weight:700;
  border:1px solid #cfdcf7;
}
.tier-body{min-width:0;}
.tier-body strong{display:block;font-size:13.5px;color:var(--ink);line-height:1.4;}
.tier-body span{font-size:12.5px;color:var(--ink-3);}

/* 指标看板 */
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 20px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;
}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.metric strong{
  display:block;font-size:30px;line-height:1.2;color:var(--brand);letter-spacing:-1px;
}
.metric .metric-label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin:4px 0 6px;}
.metric p{margin:0;font-size:13px;color:var(--ink-3);}

/* 卡片网格 */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.yx-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.yx-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdcf7;}
.yx-card h3{margin-bottom:8px;font-size:17px;}
.yx-card p{margin:0;font-size:14.5px;color:var(--ink-2);}
.card-icon{
  width:38px;height:38px;border-radius:11px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-weight:700;font-size:14px;margin-bottom:14px;
}

/* 对比 */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.compare-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);min-width:0;
}
.compare-card.is-real{border-color:#bcd2f8;box-shadow:var(--shadow);}
.compare-card h3{display:flex;align-items:center;gap:10px;font-size:17px;margin-bottom:16px;}
.chip{
  font-size:11.5px;font-weight:600;color:var(--ink-3);background:#f1f4fa;
  border-radius:999px;padding:3px 10px;
}
.chip--brand{color:var(--brand);background:var(--brand-soft);}
.compare-card li{
  display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);
  padding:9px 0;border-bottom:1px dashed var(--line);
}
.compare-card li:last-child{border-bottom:0;}
.compare-card li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-mid);
  flex:0 0 auto;margin-top:9px;
}

/* 时间线 */
.timeline{display:grid;gap:0;margin-top:8px;}
.tl-item{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:18px;
  padding:18px 0;border-bottom:1px solid var(--line);min-width:0;
}
.tl-item:last-child{border-bottom:0;}
.tl-step{
  width:44px;height:44px;border-radius:14px;background:var(--brand-soft);color:var(--brand-dark);
  display:grid;place-items:center;font-weight:700;font-size:15px;border:1px solid #d3e0f9;
}
.tl-body{min-width:0;}
.tl-body h3{font-size:16px;margin-bottom:6px;}
.tl-body p{margin:0;font-size:14.5px;color:var(--ink-2);}

/* 资讯流布局 */
.news-layout{
  display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);
  gap:26px;align-items:start;
}
.news-list{display:grid;gap:14px;}
.news-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:20px 22px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfdcf7;}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px;}
.news-cat{
  font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-soft);
  border-radius:999px;padding:3px 10px;
}
.news-date{font-size:12.5px;color:var(--ink-3);}
.news-title{display:block;font-size:17px;font-weight:700;color:var(--ink);margin-bottom:6px;line-height:1.5;}
.news-title:hover{color:var(--brand);}
.news-summary{
  margin:0;font-size:14px;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.empty-tip{
  background:#fff;border:1px dashed #cfdcf7;border-radius:var(--radius-md);
  padding:36px 20px;text-align:center;color:var(--ink-3);font-size:14.5px;
}
.side-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);margin-bottom:18px;
}
.side-panel h3{font-size:15.5px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-panel h3::before{
  content:"";width:4px;height:16px;border-radius:3px;background:var(--brand-mid);
}
.side-links{display:grid;gap:2px;}
.side-links a{
  display:block;font-size:14px;color:var(--ink-2);padding:8px 10px;border-radius:9px;
}
.side-links a:hover{background:var(--brand-soft-2);color:var(--brand);}
.side-more{
  display:block;margin-top:12px;text-align:center;font-size:13.5px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);border-radius:10px;padding:9px 12px;
}
.side-more:hover{background:#dbe7ff;color:var(--brand-dark);}

/* 专题条 */
.topic-bar{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;
  background:linear-gradient(120deg,#123a94,#1f5ad6);border-radius:22px;
  padding:30px 32px;color:#fff;box-shadow:var(--shadow);
}
.topic-bar h2{color:#fff;font-size:21px;margin-bottom:8px;}
.topic-bar p{color:rgba(255,255,255,.84);margin:0;font-size:14.5px;max-width:640px;}
.topic-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.topic-tags span{
  font-size:12.5px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.24);
  border-radius:999px;padding:4px 12px;color:#fff;
}
.topic-bar .yx-btn--ghost{background:#fff;border-color:#fff;color:var(--brand-dark);}
.topic-bar .yx-btn--ghost:hover{background:#eaf2ff;color:var(--brand-dark);}

/* 下载区 */
.download-card{
  background:linear-gradient(150deg,#ffffff 0%,#f3f7ff 100%);
  border:1px solid var(--line);border-radius:24px;padding:34px;
  box-shadow:var(--shadow);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:30px;align-items:center;
}
.download-copy h2{font-size:23px;margin-bottom:10px;}
.download-copy p{margin:0;font-size:14.5px;}
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;}
.dl-btn{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  background:#fff;border:1px solid #cddcf7;border-radius:var(--radius-md);
  padding:18px 12px;text-align:center;min-width:0;
  box-shadow:var(--shadow-sm);transition:all .2s ease;
}
.dl-btn:hover{
  transform:translateY(-3px);border-color:var(--brand-mid);box-shadow:0 16px 32px rgba(31,90,214,.18);
  background:var(--brand-soft-2);
}
.dl-btn strong{font-size:15px;color:var(--brand-dark);}
.dl-btn span{font-size:12px;color:var(--ink-3);}

/* 保障 */
.guard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.guard{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 20px;box-shadow:var(--shadow-sm);min-width:0;
}
.guard h3{font-size:15.5px;margin-bottom:8px;}
.guard p{margin:0;font-size:13.5px;color:var(--ink-2);}

/* 场景 */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.scene{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-md);padding:22px;box-shadow:var(--shadow-sm);min-width:0;
}
.scene-num{
  width:40px;height:40px;flex:0 0 auto;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;font-weight:700;font-size:14px;
}
.scene-body{min-width:0;}
.scene-body h3{font-size:16px;margin-bottom:6px;}
.scene-body p{margin:0;font-size:14px;color:var(--ink-2);}

/* 顾虑回应 */
.reply-list{display:grid;gap:14px;}
.reply{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:20px 22px;box-shadow:var(--shadow-sm);min-width:0;
}
.reply-q{font-size:15px;font-weight:600;color:var(--ink);margin:0;display:flex;gap:10px;}
.reply-q::before{
  content:"问";flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:var(--brand-soft);
  color:var(--brand);font-size:12px;font-weight:700;display:grid;place-items:center;margin-top:3px;
}
.reply-a{margin:0;font-size:14.5px;color:var(--ink-2);display:flex;gap:10px;}
.reply-a::before{
  content:"答";flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:#eaf7ef;
  color:#1a8a4c;font-size:12px;font-weight:700;display:grid;place-items:center;margin-top:3px;
}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:4px 22px;box-shadow:var(--shadow-sm);transition:border-color .2s ease;
}
.faq-item[open]{border-color:#cddcf7;box-shadow:var(--shadow);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:16px 30px 16px 0;position:relative;
  font-size:15.5px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:19px;color:var(--brand);font-weight:600;line-height:1;
}
.faq-item[open] summary::after{content:"−";}
.faq-item p{margin:0 0 18px;font-size:14.5px;color:var(--ink-2);}

/* 表单 */
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:24px;
  padding:34px;box-shadow:var(--shadow);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:34px;align-items:start;
}
.contact-copy h2{font-size:23px;margin-bottom:10px;}
.contact-copy ul{display:grid;gap:10px;margin-top:18px;}
.contact-copy li{font-size:14px;color:var(--ink-2);display:flex;gap:10px;}
.contact-copy li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-mid);
  flex:0 0 auto;margin-top:9px;
}
.lead-form{display:grid;gap:14px;}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.lead-form label{display:grid;gap:6px;font-size:13.5px;color:var(--ink-2);min-width:0;}
.lead-form input,.lead-form select{
  width:100%;padding:11px 14px;font-size:14.5px;color:var(--ink);
  border:1px solid var(--line);border-radius:var(--radius-sm);background:#fbfcff;
  font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease;
}
.lead-form input:focus,.lead-form select:focus{
  outline:none;border-color:var(--brand-mid);box-shadow:0 0 0 3px rgba(63,120,234,.14);background:#fff;
}
.form-note{font-size:12.5px;color:var(--ink-3);margin:0;}

/* 页脚 */
.site-footer{background:#0d1b33;color:#c6d2e6;margin-top:0;padding:56px 0 0;}
.footer-inner{
  display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));
  gap:32px;padding-bottom:36px;
}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#8fa3c4;}
.footer-brand p{color:#93a6c6;font-size:13.5px;margin:14px 0 0;max-width:360px;}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.4px;}
.footer-col a{display:block;font-size:13.5px;color:#93a6c6;padding:5px 0;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:18px 0;
  font-size:12.5px;color:#7e91b0;
}
.footer-bottom .site-container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}

/* 响应式 */
@media (max-width:1024px){
  h1{font-size:29px;}
  .hero h1{font-size:28px;}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:30px;}
  .hero-panel{max-width:560px;}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-layout{grid-template-columns:minmax(0,1fr);}
  .download-card{grid-template-columns:minmax(0,1fr);}
  .contact-card{grid-template-columns:minmax(0,1fr);}
  .topic-bar{grid-template-columns:minmax(0,1fr);}
  .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:860px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;left:0;right:0;top:74px;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:0 18px 30px rgba(15,49,120,.12);
    flex-direction:column;align-items:stretch;gap:2px;padding:12px 20px 18px;
    display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{padding:11px 14px;border-radius:10px;font-size:15px;}
  .nav-cta{display:none;}
  .nav-wrap{height:66px;}
  .nav-links{top:66px;}
}
@media (max-width:768px){
  .section{padding:48px 0;}
  h2{font-size:22px;}
  .grid-3,.grid-2,.compare-grid,.scene-grid,.metrics-grid,.guard-grid,.dl-grid,.form-grid{
    grid-template-columns:minmax(0,1fr);
  }
  .reply{grid-template-columns:minmax(0,1fr);gap:10px;}
  .topic-bar{padding:24px 20px;}
  .download-card,.contact-card{padding:24px 20px;}
  .footer-inner{grid-template-columns:minmax(0,1fr);gap:24px;}
  .tl-item{grid-template-columns:48px minmax(0,1fr);gap:14px;}
  .news-item{padding:18px;}
}
@media (max-width:520px){
  .hero{padding:40px 0 48px;}
  .hero h1{font-size:23px;}
  h1{font-size:23px;}
  h2{font-size:20px;}
  .hero-panel{padding:18px;}
  .ring-block{flex-direction:column;align-items:flex-start;gap:14px;}
  .brand-sub{display:none;}
  .yx-btn{padding:11px 20px;font-size:14.5px;}
  .metric strong{font-size:26px;}
}

/* roulang page: article */
:root{
  --brand:#1f5ad6;
  --brand-mid:#3f78ea;
  --brand-dark:#0f3178;
  --brand-soft:#e9f0ff;
  --brand-soft-2:#f2f6ff;
  --ink:#0f1b33;
  --ink-2:#4a5b78;
  --ink-3:#7788a5;
  --line:#e2e9f5;
  --bg:#f5f8fd;
  --white:#ffffff;
  --radius:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(15,49,120,.06);
  --shadow:0 14px 36px rgba(15,49,120,.10);
  --shadow-lg:0 24px 60px rgba(15,49,120,.14);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Segoe UI",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--ink);}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;}
a:hover{color:var(--brand);}
img{max-width:100%;height:auto;display:block;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-mid);outline-offset:2px;}
.site-container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
.section{padding:64px 0;}
.section--white{background:var(--white);}
.section--tight{padding:46px 0;}
.section-head{max-width:780px;margin-bottom:30px;}
.section-head h2{margin-bottom:10px;font-size:26px;color:var(--brand-dark);}
.section-head p{font-size:15.5px;color:var(--ink-2);}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.6px;
  color:var(--brand);background:var(--brand-soft);border-radius:999px;
  padding:5px 12px;margin-bottom:14px;
}
.eyebrow--light{color:#dbe8ff;background:rgba(255,255,255,.16);}
/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px;position:relative;}
.brand{display:flex;align-items:center;gap:11px;min-width:0;}
.brand-mark{
  width:40px;height:40px;flex:0 0 auto;border-radius:12px;
  background:linear-gradient(135deg,#3f78ea,#0f3178);
  color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;
  letter-spacing:.5px;box-shadow:0 6px 16px rgba(31,90,214,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap;}
.brand-sub{font-size:11.5px;color:var(--ink-3);letter-spacing:.3px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{padding:8px 15px;border-radius:999px;font-size:15px;color:var(--ink-2);font-weight:500;}
.nav-links a:hover{background:var(--brand-soft-2);color:var(--brand);}
.nav-links a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.nav-cta{
  margin-left:8px;padding:9px 18px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:#fff;background:linear-gradient(135deg,#3f78ea,#1f5ad6);
  box-shadow:0 8px 20px rgba(31,90,214,.26);white-space:nowrap;
}
.nav-cta:hover{color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(31,90,214,.34);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;
  border-radius:12px;padding:0;margin-left:auto;cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.2s;}
/* 按钮 */
.yx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;
}
.yx-btn--primary{
  color:#fff;background:linear-gradient(135deg,#3f78ea,#1f5ad6);
  box-shadow:0 10px 24px rgba(31,90,214,.26);
}
.yx-btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(31,90,214,.34);}
.yx-btn--ghost{color:var(--brand);background:#fff;border-color:#cddcf7;}
.yx-btn--ghost:hover{color:var(--brand-dark);background:var(--brand-soft);border-color:#b6cdf5;}
/* 文章首屏 */
.article-hero{
  padding:42px 0 40px;
  background:linear-gradient(180deg,#eaf2ff 0%,#f6f9ff 62%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:16px;}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--brand);}
.crumb-sep{color:#c3cfe5;}
.crumb-cat{color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:3px 11px;font-size:12.5px;font-weight:600;}
.article-hero h1{font-size:30px;line-height:1.4;color:var(--brand-dark);max-width:920px;margin-bottom:16px;}
.article-lead{max-width:860px;font-size:15.5px;color:var(--ink-2);margin-bottom:20px;}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;}
.meta-chip{
  font-size:12.5px;color:var(--ink-2);background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:5px 14px;box-shadow:var(--shadow-sm);white-space:nowrap;
}
/* 正文布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 322px;gap:30px;align-items:start;}
.article-main{
  min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:34px 34px 38px;
}
.article-prose{font-size:16px;line-height:1.9;color:#22314f;min-width:0;overflow-wrap:break-word;}
.article-prose h2{font-size:22px;margin:34px 0 14px;padding-left:12px;border-left:4px solid var(--brand-mid);color:var(--brand-dark);}
.article-prose h3{font-size:18px;margin:26px 0 10px;color:var(--ink);}
.article-prose h4{font-size:16px;margin:20px 0 8px;}
.article-prose p{margin:0 0 15px;}
.article-prose ul,.article-prose ol{margin:0 0 16px;padding-left:24px;}
.article-prose li{margin-bottom:8px;}
.article-prose img{border-radius:var(--radius-md);margin:16px 0;max-width:100%;height:auto;}
.article-prose blockquote{
  margin:18px 0;padding:14px 20px;background:var(--brand-soft-2);
  border-left:4px solid var(--brand-mid);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--ink-2);
}
.article-prose a{color:var(--brand);text-decoration:underline;}
.article-prose table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px;}
.article-prose th,.article-prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-prose th{background:var(--brand-soft-2);font-weight:600;}
.article-prose code{background:var(--brand-soft-2);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-empty{text-align:center;padding:36px 10px;}
.article-empty h2{font-size:20px;color:var(--brand-dark);margin-bottom:10px;}
.article-empty p{color:var(--ink-2);font-size:15px;margin-bottom:20px;}
/* 侧栏 */
.article-side{display:grid;gap:18px;position:sticky;top:94px;min-width:0;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);min-width:0;
}
.side-card h2{font-size:16px;margin-bottom:12px;color:var(--brand-dark);}
.side-card p{font-size:14px;color:var(--ink-2);}
.side-list{list-style:none;display:grid;gap:10px;}
.side-list li{
  position:relative;padding-left:20px;font-size:14px;line-height:1.7;color:var(--ink-2);
}
.side-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;
  border-radius:3px;background:var(--brand-mid);
}
.side-dl{display:grid;gap:9px;margin-top:14px;}
.dl-mini{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 14px;border-radius:var(--radius-sm);border:1px solid #d9e5fa;
  background:var(--brand-soft-2);font-size:14px;font-weight:600;color:var(--brand);
}
.dl-mini:hover{background:var(--brand-soft);border-color:#b6cdf5;color:var(--brand-dark);}
.dl-mini span{font-size:12px;font-weight:500;color:var(--ink-3);}
.side-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand);margin-top:10px;
}
.side-more:hover{color:var(--brand-dark);}
/* 准备卡片 */
.prep-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.prep-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  box-shadow:var(--shadow-sm);min-width:0;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.prep-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdcf7;}
.prep-num{
  width:36px;height:36px;border-radius:11px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-weight:700;font-size:15px;margin-bottom:14px;
}
.prep-card h3{font-size:17px;margin-bottom:8px;}
.prep-card p{font-size:14.5px;color:var(--ink-2);}
/* 对比 */
.versus{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.versus-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-sm);min-width:0;
}
.versus-card.is-accent{border-color:#bcd2f8;background:linear-gradient(180deg,#f5f9ff,#fff);box-shadow:var(--shadow);}
.versus-card h3{font-size:18px;margin-bottom:8px;color:var(--brand-dark);}
.versus-tag{
  display:inline-block;font-size:12px;font-weight:600;color:var(--ink-3);
  background:var(--brand-soft-2);border-radius:999px;padding:4px 11px;margin-bottom:14px;
}
.versus-card.is-accent .versus-tag{color:var(--brand);background:#e2ecff;}
.versus-list{list-style:none;display:grid;gap:11px;}
.versus-list li{
  position:relative;padding-left:22px;font-size:14.5px;line-height:1.75;color:var(--ink-2);
}
.versus-list li::before{
  content:"";position:absolute;left:2px;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--brand-mid);
}
.versus-card:not(.is-accent) .versus-list li::before{background:#b8c6de;}
/* 风险提示 */
.risk-card{
  display:flex;gap:18px;align-items:flex-start;background:#fff8f5;
  border:1px solid #f3d2c6;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);
}
.risk-badge{
  flex:0 0 auto;width:44px;height:44px;border-radius:14px;background:#fde8df;color:#b0472b;
  display:grid;place-items:center;font-weight:700;font-size:16px;
}
.risk-card h2{font-size:18px;color:#8c3b25;margin-bottom:8px;}
.risk-card p{font-size:14.5px;color:#7a4a38;min-width:0;}
/* 下载 */
.download-band{
  background:linear-gradient(135deg,#0f3178 0%,#1f5ad6 100%);
  border-radius:24px;padding:38px;color:#eaf1ff;box-shadow:var(--shadow-lg);
}
.download-head{max-width:700px;margin-bottom:26px;}
.download-head h2{font-size:26px;color:#fff;margin-bottom:10px;}
.download-head p{font-size:15px;color:#cfdcf7;}
.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;}
.dl-btn{
  display:flex;flex-direction:column;gap:4px;padding:18px 20px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.28);
  color:#fff;transition:all .2s ease;min-width:0;
}
.dl-btn strong{font-size:16px;font-weight:700;}
.dl-btn span{font-size:12.5px;color:#c9daf7;}
.dl-btn:hover{background:#fff;color:var(--brand-dark);transform:translateY(-3px);box-shadow:0 16px 30px rgba(6,20,50,.28);}
.dl-btn:hover span{color:var(--ink-3);}
/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:16px 20px;font-size:15.5px;font-weight:600;
  color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:16px;
  transition:background-color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:9px;height:9px;border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);transform:rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-item summary:hover{background:var(--brand-soft-2);}
.faq-body{padding:0 20px 18px;font-size:14.5px;color:var(--ink-2);}
/* 页脚 */
.site-footer{background:#0c1c3f;color:#c3d0e6;padding:52px 0 0;margin-top:64px;}
.footer-inner{
  display:grid;grid-template-columns:minmax(0,1.7fr) repeat(3,minmax(0,1fr));
  gap:32px;padding-bottom:36px;
}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:#93a7c6;}
.site-footer .brand-mark{box-shadow:none;}
.footer-brand p{font-size:13.5px;color:#9db0cd;line-height:1.85;margin-top:14px;max-width:430px;}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:12px;}
.footer-col a{display:block;font-size:13.5px;color:#a9bad4;padding:4px 0;}
.footer-col a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;font-size:12.5px;color:#8ea2c2;}
.footer-bottom .site-container{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
  .prep-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  .nav-toggle{display:flex;}
  .nav-links{
    display:none;position:absolute;top:74px;left:-20px;right:-20px;margin:0;
    flex-direction:column;align-items:stretch;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);
    padding:12px 20px 18px;gap:2px;
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{padding:11px 14px;}
  .nav-cta{margin-left:0;text-align:center;}
  .article-main{padding:22px 20px 26px;}
  .article-hero h1{font-size:24px;}
  .article-side{grid-template-columns:minmax(0,1fr);}
  .prep-grid,.versus,.download-grid{grid-template-columns:minmax(0,1fr);}
  .download-band{padding:26px 22px;}
  .section{padding:48px 0;}
  .section--tight{padding:36px 0;}
  .risk-card{flex-direction:column;gap:14px;}
}
@media (max-width:520px){
  .brand-sub{display:none;}
  .article-hero{padding:30px 0 28px;}
  .article-hero h1{font-size:21px;}
  .article-lead{font-size:14.5px;}
  .article-prose{font-size:15.5px;}
  .section-head h2,.download-head h2{font-size:22px;}
  .footer-inner{grid-template-columns:minmax(0,1fr);gap:24px;}
  .dl-btn{padding:15px 16px;}
}

/* roulang page: category1 */
:root{
  --brand:#1f5ad6;
  --brand-mid:#3f78ea;
  --brand-dark:#0f3178;
  --brand-soft:#e9f0ff;
  --brand-soft-2:#f2f6ff;
  --ink:#0f1b33;
  --ink-2:#4a5b78;
  --ink-3:#7788a5;
  --line:#e2e9f5;
  --bg:#f5f8fd;
  --white:#ffffff;
  --radius:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(15,49,120,.06);
  --shadow:0 14px 36px rgba(15,49,120,.10);
  --shadow-lg:0 24px 60px rgba(15,49,120,.14);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Segoe UI",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0 0 .55em;font-weight:700;line-height:1.35;color:var(--ink);}
h1{font-size:32px;}
h2{font-size:26px;}
h3{font-size:17px;}
h4{font-size:15px;}
p{margin:0 0 1em;color:var(--ink-2);}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease;}
a:hover{color:var(--brand);}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-mid);outline-offset:3px;}
.site-container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
.section{padding:68px 0;}
.section--white{background:var(--white);}
.section--tight{padding:48px 0;}
.section-head{max-width:780px;margin-bottom:32px;}
.section-head h2{margin-bottom:10px;}
.section-head p{margin:0;font-size:15.5px;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.6px;
  color:var(--brand);background:var(--brand-soft);border-radius:999px;
  padding:5px 12px;margin-bottom:14px;
}
/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px;}
.brand{display:flex;align-items:center;gap:11px;min-width:0;}
.brand-mark{
  width:40px;height:40px;flex:0 0 auto;border-radius:12px;
  background:linear-gradient(135deg,#3f78ea,#0f3178);
  color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;
  letter-spacing:.5px;box-shadow:0 6px 16px rgba(31,90,214,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap;}
.brand-sub{font-size:11.5px;color:var(--ink-3);letter-spacing:.3px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  padding:8px 15px;border-radius:999px;font-size:15px;color:var(--ink-2);font-weight:500;
}
.nav-links a:hover{background:var(--brand-soft-2);color:var(--brand);}
.nav-links a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.nav-cta{
  margin-left:8px;padding:9px 18px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:#fff;background:linear-gradient(135deg,#3f78ea,#1f5ad6);
  box-shadow:0 8px 20px rgba(31,90,214,.26);white-space:nowrap;
}
.nav-cta:hover{color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(31,90,214,.34);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;
  border-radius:12px;padding:0;margin-left:auto;cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.2s;}
/* 按钮 */
.yx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;
}
.yx-btn--primary{
  color:#fff;background:linear-gradient(135deg,#3f78ea,#1f5ad6);
  box-shadow:0 10px 24px rgba(31,90,214,.26);
}
.yx-btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(31,90,214,.34);}
.yx-btn--ghost{color:var(--brand);background:#fff;border-color:#cddcf7;}
.yx-btn--ghost:hover{color:var(--brand-dark);background:var(--brand-soft);border-color:#b6cdf5;}
.yx-btn--sm{padding:9px 18px;font-size:14px;}
/* 分类页首屏 */
.cat-hero{
  position:relative;overflow:hidden;
  padding:54px 0 62px;
  background:linear-gradient(180deg,#eaf2ff 0%,#f6f9ff 60%,var(--bg) 100%);
}
.cat-hero::after{
  content:"";position:absolute;right:-150px;top:-130px;width:430px;height:430px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,120,234,.16),rgba(63,120,234,0) 70%);
  pointer-events:none;
}
.cat-hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:44px;align-items:start;
}
.cat-hero h1{font-size:31px;line-height:1.34;color:var(--brand-dark);margin-bottom:16px;}
.cat-hero-lead{font-size:15.5px;color:var(--ink-2);margin-bottom:22px;}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
.cat-hero-tags{display:flex;flex-wrap:wrap;gap:9px;}
.cat-hero-tags span{
  font-size:13px;color:var(--brand-dark);background:#fff;border:1px solid #d9e5fa;
  border-radius:999px;padding:6px 14px;box-shadow:var(--shadow-sm);
}
.cat-panel{
  background:#fff;border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--shadow);padding:24px;
}
.cat-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.cat-panel-head strong{font-size:15.5px;color:var(--ink);}
.panel-tag{
  font-size:12px;color:var(--brand);background:var(--brand-soft);
  border-radius:999px;padding:4px 10px;font-weight:600;white-space:nowrap;
}
.topic-row{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px dashed var(--line);min-width:0;
}
.topic-row:last-of-type{border-bottom:none;}
.topic-num{
  flex:0 0 auto;width:30px;height:30px;border-radius:9px;background:var(--brand-soft);
  color:var(--brand);font-size:12.5px;font-weight:700;display:grid;place-items:center;
}
.topic-body{min-width:0;}
.topic-body strong{display:block;font-size:14px;color:var(--ink);line-height:1.45;}
.topic-body span{font-size:12.8px;color:var(--ink-3);display:block;line-height:1.55;}
.cat-panel-note{
  margin:14px 0 0;font-size:12.5px;color:var(--ink-3);
  background:var(--brand-soft-2);border-radius:var(--radius-sm);padding:10px 12px;line-height:1.6;
}
/* 看板 */
.metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.metric-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdcf7;}
.metric-index{font-size:12.5px;font-weight:700;color:var(--brand);letter-spacing:1px;display:block;margin-bottom:8px;}
.metric-card h3{font-size:16px;margin-bottom:6px;}
.metric-card p{margin:0;font-size:13.8px;color:var(--ink-2);line-height:1.7;}
/* 主题矩阵 */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.yx-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.yx-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdcf7;}
.yx-card h3{margin-bottom:8px;}
.yx-card p{margin:0;font-size:14.5px;color:var(--ink-2);}
.card-icon{
  width:38px;height:38px;border-radius:11px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-weight:700;font-size:14px;margin-bottom:14px;
}
.card-list{margin-top:12px;display:grid;gap:7px;}
.card-list li{
  position:relative;padding-left:16px;font-size:13.5px;color:var(--ink-2);line-height:1.6;
}
.card-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;
  background:var(--brand-mid);
}
/* 对比 */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.compare-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);min-width:0;
}
.compare-card.is-real{border-color:#bcd2f8;box-shadow:0 16px 40px rgba(31,90,214,.12);}
.compare-card h3{display:flex;align-items:center;gap:9px;font-size:17px;}
.compare-badge{
  font-size:11.5px;font-weight:600;border-radius:999px;padding:3px 10px;
  background:var(--brand-soft);color:var(--brand);
}
.compare-card.is-real .compare-badge{background:#e5efff;color:var(--brand-dark);}
.compare-item{padding:13px 0;border-bottom:1px dashed var(--line);min-width:0;}
.compare-item:last-child{border-bottom:none;padding-bottom:0;}
.compare-item strong{display:block;font-size:14px;color:var(--ink);margin-bottom:3px;}
.compare-item span{font-size:13.5px;color:var(--ink-2);line-height:1.65;}
/* 时间线 */
.timeline-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 20px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdcf7;}
.step-card::before{
  content:"";position:absolute;left:20px;right:20px;top:0;height:3px;
  border-radius:0 0 4px 4px;background:linear-gradient(90deg,#3f78ea,#0f3178);
}
.step-no{
  display:inline-block;font-size:12px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:3px 10px;margin-bottom:12px;
}
.step-card h3{font-size:16px;margin-bottom:6px;}
.step-card p{margin:0;font-size:13.6px;color:var(--ink-2);line-height:1.7;}
/* 下载 */
.dl-band{
  background:linear-gradient(135deg,#123b8f,#1f5ad6 58%,#3f78ea 100%);
  color:#fff;border-radius:26px;padding:40px;box-shadow:var(--shadow-lg);
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:32px;align-items:center;
}
.dl-band h2{color:#fff;font-size:25px;margin-bottom:10px;}
.dl-band p{color:rgba(255,255,255,.86);margin:0;font-size:14.5px;line-height:1.8;}
.dl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.dl-tags span{
  font-size:12.5px;color:#e6efff;border:1px solid rgba(255,255,255,.34);
  border-radius:999px;padding:4px 11px;
}
.dl-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;}
.dl-btn{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.34);
  border-radius:var(--radius-md);padding:16px 10px;color:#fff;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;min-width:0;
}
.dl-btn:hover{background:#fff;color:var(--brand-dark);transform:translateY(-3px);box-shadow:0 14px 28px rgba(0,0,0,.18);}
.dl-btn strong{font-size:14.5px;font-weight:700;white-space:nowrap;}
.dl-btn span{font-size:11.5px;opacity:.82;white-space:nowrap;}
/* 资讯 */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);min-width:0;
  display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdcf7;}
.news-card h3{font-size:16px;margin-bottom:8px;line-height:1.5;}
.news-card h3 a:hover{color:var(--brand);}
.news-card p{font-size:13.8px;color:var(--ink-2);margin:0 0 14px;line-height:1.7;}
.news-meta{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:auto;
  font-size:12.3px;color:var(--ink-3);
}
.news-meta span{
  background:var(--brand-soft-2);border-radius:999px;padding:3px 10px;
}
.news-empty{
  background:#fff;border:1px dashed #cddcf7;border-radius:var(--radius);
  padding:28px;text-align:center;color:var(--ink-3);font-size:14.5px;margin:0;
}
/* 保障 */
.guard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.guard-card{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand-mid);
  border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-sm);min-width:0;
}
.guard-card h3{font-size:15.5px;margin-bottom:6px;}
.guard-card p{margin:0;font-size:13.6px;color:var(--ink-2);line-height:1.7;}
/* 问答 */
.quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-bottom:36px;}
.quick-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);min-width:0;
}
.quick-card strong{display:block;font-size:15px;color:var(--brand-dark);margin-bottom:6px;}
.quick-card p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.75;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:6px 22px;box-shadow:var(--shadow-sm);min-width:0;
}
.faq-item summary{
  cursor:pointer;list-style:none;padding:16px 0;font-size:15.5px;font-weight:600;
  color:var(--ink);display:flex;align-items:flex-start;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"问";flex:0 0 auto;width:24px;height:24px;border-radius:8px;
  background:var(--brand-soft);color:var(--brand);font-size:12.5px;font-weight:700;
  display:grid;place-items:center;margin-top:2px;
}
.faq-item[open] summary{color:var(--brand);}
.faq-item .faq-answer{
  padding:0 0 18px 36px;font-size:14.2px;color:var(--ink-2);line-height:1.8;
}
.faq-item .faq-answer p:last-child{margin-bottom:0;}
/* 自检 + CTA */
.check-wrap{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:32px;align-items:start;
}
.check-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);min-width:0;
}
.check-list{display:grid;gap:10px;}
.check-list li{min-width:0;}
.check-list label{
  display:flex;gap:11px;align-items:flex-start;cursor:pointer;
  background:var(--brand-soft-2);border:1px solid #e3ecfb;border-radius:var(--radius-sm);
  padding:11px 14px;font-size:14px;color:var(--ink-2);line-height:1.65;
  transition:background .18s ease,border-color .18s ease;
}
.check-list label:hover{background:#eaf1ff;border-color:#c9dbf8;}
.check-list input[type="checkbox"]{
  margin-top:4px;width:16px;height:16px;flex:0 0 auto;accent-color:var(--brand);
}
.check-list input:checked + span{color:var(--brand-dark);font-weight:600;}
.check-progress{
  margin-top:18px;display:flex;align-items:center;gap:12px;
  font-size:13.5px;color:var(--ink-3);
}
.check-progress .bar{
  flex:1 1 auto;height:8px;border-radius:999px;background:#e8eefb;overflow:hidden;min-width:0;
}
.check-progress .bar i{
  display:block;height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,#3f78ea,#0f3178);transition:width .25s ease;
}
.cta-card{
  background:linear-gradient(150deg,#0f3178,#1f5ad6 62%,#3f78ea 100%);
  border-radius:var(--radius);padding:30px;color:#fff;box-shadow:var(--shadow);
  min-width:0;
}
.cta-card h2{color:#fff;font-size:23px;margin-bottom:12px;}
.cta-card p{color:rgba(255,255,255,.86);font-size:14.2px;line-height:1.8;}
.cta-card .yx-btn{width:100%;margin-top:6px;}
.cta-card .yx-btn + .yx-btn{margin-top:10px;}
.cta-outline{
  color:#fff;background:transparent;border-color:rgba(255,255,255,.5);
}
.cta-outline:hover{color:var(--brand-dark);background:#fff;border-color:#fff;}
.cta-note{font-size:12.5px;color:rgba(255,255,255,.7);margin:12px 0 0;line-height:1.7;}
/* 页脚 */
.site-footer{background:#0d1b38;color:#c3cfe4;margin-top:20px;}
.footer-inner{
  display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));
  gap:36px;padding:54px 20px 40px;max-width:1180px;margin:0 auto;
}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#8fa2c2;}
.footer-brand p{margin:16px 0 0;font-size:13.5px;line-height:1.85;color:#9fb0cd;max-width:420px;}
.footer-col h3{font-size:14.5px;color:#fff;margin-bottom:14px;}
.footer-col a{display:block;font-size:13.8px;color:#9fb0cd;padding:5px 0;}
.footer-col a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.09);padding:18px 0;}
.footer-bottom .site-container{
  display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;
  font-size:12.5px;color:#8fa2c2;
}
/* 响应式 */
@media (max-width:1024px){
  .cat-hero h1{font-size:28px;}
  .cat-hero-inner{grid-template-columns:minmax(0,1fr);gap:30px;}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .timeline-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .dl-band{grid-template-columns:minmax(0,1fr);padding:32px;}
  .check-wrap{grid-template-columns:minmax(0,1fr);}
  .footer-inner{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;}
  .section{padding:54px 0;}
}
@media (max-width:900px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;left:0;right:0;top:74px;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 34px rgba(15,49,120,.12);
    padding:14px 20px 20px;
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{padding:11px 14px;border-radius:12px;}
  .nav-cta{margin-left:0;text-align:center;justify-content:center;display:flex;}
  .site-header{position:sticky;}
}
@media (max-width:768px){
  h1{font-size:26px;}
  h2{font-size:22px;}
  .cat-hero{padding:40px 0 46px;}
  .cat-hero h1{font-size:25px;}
  .grid-2,.compare-grid,.quick-grid{grid-template-columns:minmax(0,1fr);}
  .dl-actions{grid-template-columns:minmax(0,1fr);}
  .dl-btn{flex-direction:row;justify-content:center;gap:10px;padding:14px;}
  .dl-btn span{opacity:.75;}
  .brand-sub{display:none;}
  .faq-item .faq-answer{padding-left:0;}
}
@media (max-width:520px){
  .site-container{padding:0 16px;}
  .section{padding:44px 0;}
  .metrics-grid{grid-template-columns:minmax(0,1fr);}
  .grid-3,.timeline-grid,.news-grid,.guard-grid{grid-template-columns:minmax(0,1fr);}
  .footer-inner{grid-template-columns:minmax(0,1fr);padding:40px 16px 30px;}
  .cat-panel{padding:20px;}
  .dl-band{padding:24px;border-radius:20px;}
  .cta-card{padding:24px;}
  .brand-name{font-size:16px;}
  .yx-btn{width:100%;}
  .cat-hero-actions .yx-btn{width:100%;}
}