/* roulang page: index */
:root{
  --brand:#2A4B9B;
  --brand-700:#1B3268;
  --brand-050:#EDF2FC;
  --brand-100:#DCE6FA;
  --accent:#C08A4E;
  --accent-050:#F7EFE4;
  --bg:#FFFFFF;
  --bg-alt:#F6F8FC;
  --bg-soft:#EEF2F9;
  --text-1:#131A2A;
  --text-2:#5A6579;
  --text-3:#919BAD;
  --line:#E2E8F2;
  --shadow-sm:0 1px 2px rgba(19,26,42,.06);
  --shadow-md:0 10px 30px rgba(27,50,104,.08);
  --shadow-lg:0 20px 50px rgba(27,50,104,.12);
  --radius-card:16px;
  --radius-btn:10px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#2A4B9B;
  --bs-body-color:#131A2A;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E2E8F2;
  --bs-border-radius:12px;
  --bs-link-color:#2A4B9B;
  --bs-link-hover-color:#1B3268;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-1);letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1180px;
  padding-left:20px;
  padding-right:20px;
  margin:0 auto;
}
[id]{scroll-margin-top:88px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:0;border-radius:var(--radius-btn);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;line-height:1;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  box-shadow:var(--shadow-sm);cursor:pointer;white-space:nowrap;
}
.btn-brand:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-brand svg{flex:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border:1.5px solid var(--brand-100);border-radius:var(--radius-btn);
  background:transparent;color:var(--brand);font-size:15px;font-weight:600;line-height:1;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);cursor:pointer;
}
.btn-ghost:hover{background:var(--brand-050);border-color:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
}
.link-arrow svg{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--brand-700);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 徽章 ---------- */
.badge-accent{
  display:inline-block;font-size:12px;font-weight:500;line-height:1.5;
  padding:4px 10px;border-radius:999px;background:var(--accent-050);color:#8C5F2C;
  border:1px solid rgba(192,138,78,.28);
}
.badge-brand{
  display:inline-block;font-size:12px;font-weight:500;line-height:1.5;
  padding:4px 10px;border-radius:999px;background:var(--brand-050);color:var(--brand);
  border:1px solid var(--brand-100);
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.scrolled{box-shadow:var(--shadow-md);}
.site-header .navbar{position:relative;height:72px;padding:0;}
.brand{display:flex;align-items:center;gap:12px;color:var(--brand);text-decoration:none;}
.brand:hover{color:var(--brand-700);}
.brand-mark{flex:none;width:38px;height:38px;color:var(--brand);}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-top{font-size:15px;font-weight:700;color:var(--text-1);letter-spacing:.4px;}
.brand-sub{font-size:12px;font-weight:500;color:var(--text-3);letter-spacing:.3px;}
.brand-divider{width:1px;height:22px;background:var(--line);}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-list a{
  position:relative;display:inline-block;padding:8px 14px;
  font-size:15px;font-weight:500;color:var(--text-2);border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-list a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-list a:hover{color:var(--brand);background:var(--brand-050);}
.nav-list a:hover::after{transform:scaleX(1);}
.nav-list a.active{color:var(--brand);font-weight:600;}
.nav-list a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;}
.nav-actions .btn-brand{height:44px;padding:0 20px;font-size:14px;}
.nav-actions .nav-text{font-size:14px;font-weight:600;color:var(--text-2);white-space:nowrap;}
.nav-actions .nav-text:hover{color:var(--brand);}
.navbar-toggler{
  border:1px solid var(--line);border-radius:10px;padding:9px 11px;background:#fff;
  box-shadow:none;transition:border-color .2s var(--ease);
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(42,75,155,.14);outline:none;}
.navbar-toggler:hover{border-color:var(--brand-100);}
.navbar-toggler-icon{
  width:22px;height:16px;background:none;position:relative;display:block;
}
.navbar-toggler-icon::before,.navbar-toggler-icon::after{
  content:"";position:absolute;left:0;right:0;height:2px;border-radius:2px;background:var(--brand);
}
.navbar-toggler-icon::before{top:0;}
.navbar-toggler-icon::after{bottom:0;}
.navbar-toggler-icon{background:linear-gradient(var(--brand),var(--brand)) center/100% 2px no-repeat;}

/* ---------- Hero ---------- */
.hero{padding:56px 0 64px;background:#fff;position:relative;overflow:hidden;}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:56px;align-items:center;min-height:580px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.5px;
  background:var(--brand-050);border:1px solid var(--brand-100);
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero h1{
  font-size:clamp(30px,3.2vw,46px);line-height:1.25;font-weight:700;
  color:var(--text-1);margin-bottom:18px;max-width:16em;
}
.hero-sub{
  font-size:17px;line-height:1.8;color:var(--text-2);max-width:30em;margin-bottom:22px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.hero-tags span{
  font-size:13px;color:var(--text-2);padding:5px 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow-lg);}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(42,75,155,.08),rgba(27,50,104,.18));
}
.hero-float{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:14px;
  padding:12px 16px;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:12px;
}
.hero-float svg{color:var(--brand);flex:none;}
.hero-float strong{display:block;font-size:13px;font-weight:700;color:var(--text-1);line-height:1.4;}
.hero-float small{display:block;font-size:12px;color:var(--text-3);line-height:1.4;}
.hero-trust{
  margin-top:52px;padding-top:26px;border-top:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
}
.hero-trust div{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);}
.hero-trust svg{color:var(--brand);flex:none;}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{margin-bottom:44px;max-width:720px;}
.section-head .kicker{
  font-size:13px;font-weight:600;color:var(--accent);letter-spacing:1.2px;
  text-transform:uppercase;margin-bottom:10px;display:block;
}
.section-head h2{font-size:clamp(24px,2.4vw,32px);line-height:1.35;margin-bottom:12px;}
.section-head p{font-size:16px;color:var(--text-2);}
.section-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:40px;flex-wrap:wrap;
}
.section-head-row .section-head{margin-bottom:0;}

/* ---------- 卖点三连 ---------- */
.value-list{border-top:1px solid var(--line);}
.value-item{
  display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:36px;align-items:start;padding:38px 0;border-bottom:1px solid var(--line);
}
.value-item.reverse{grid-template-columns:minmax(0,8fr) minmax(0,4fr);}
.value-num{
  display:flex;align-items:center;gap:14px;
}
.value-item.reverse .value-num{justify-content:flex-end;}
.value-num .circle{
  width:52px;height:52px;flex:none;border-radius:50%;
  border:1.5px solid var(--brand-100);background:var(--brand-050);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;
}
.value-num .label{font-size:13px;font-weight:600;color:var(--text-3);letter-spacing:.5px;}
.value-body h3{font-size:21px;line-height:1.5;margin-bottom:10px;}
.value-body p{font-size:15.5px;color:var(--text-2);margin-bottom:16px;max-width:36em;}

/* ---------- 场景演示 ---------- */
.scene{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:52px;align-items:center;
}
.scene + .scene{margin-top:72px;}
.scene.rev .scene-media{order:2;}
.scene-media{
  border-radius:16px;overflow:hidden;box-shadow:var(--shadow-md);position:relative;
}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
.scene-media:hover img{transform:scale(1.03);}
.scene-body .badge-accent{margin-bottom:14px;}
.scene-body h2,.scene-body h3{font-size:clamp(22px,2.2vw,28px);line-height:1.4;margin-bottom:14px;}
.scene-body p{font-size:15.5px;color:var(--text-2);margin-bottom:20px;max-width:34em;}
.scene-points{display:grid;gap:10px;margin-bottom:22px;}
.scene-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-2);}
.scene-points svg{flex:none;margin-top:6px;color:var(--brand);}

/* ---------- 最新信息 ---------- */
.post-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;
}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  box-shadow:var(--shadow-sm);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100);}
.post-thumb{display:block;overflow:hidden;background:var(--bg-soft);}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:18px 18px 16px;display:flex;flex-direction:column;flex:1;}
.post-body .badge-accent{align-self:flex-start;margin-bottom:10px;}
.post-title{font-size:16.5px;line-height:1.55;font-weight:600;margin-bottom:10px;}
.post-title a{color:var(--text-1);}
.post-title a:hover{color:var(--brand);}
.post-title,.post-excerpt{
  display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden;
}
.post-title{-webkit-line-clamp:2;}
.post-excerpt{-webkit-line-clamp:3;font-size:14px;color:var(--text-2);line-height:1.75;margin-bottom:16px;}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:12px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}
.post-meta .go{display:inline-flex;align-items:center;gap:4px;color:var(--brand);font-weight:600;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:#fff;
  padding:56px 24px;text-align:center;grid-column:1/-1;
}
.empty-state svg{color:var(--brand-100);margin-bottom:16px;}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:18px;}

/* ---------- 社会认同 ---------- */
.partner-wall{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;margin-bottom:44px;
}
.partner-wall span{
  background:#fff;padding:26px 16px;text-align:center;
  font-size:14.5px;font-weight:600;color:var(--text-3);letter-spacing:.5px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.partner-wall span:hover{color:var(--brand);background:var(--brand-050);}
.quotes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
.quote{
  position:relative;padding:8px 0 8px 22px;border-left:3px solid var(--brand);
}
.quote .mark{font-size:40px;line-height:1;color:var(--brand-100);font-weight:700;display:block;margin-bottom:2px;}
.quote p{font-size:15.5px;color:var(--text-1);line-height:1.85;margin-bottom:14px;}
.quote cite{font-style:normal;font-size:13px;color:var(--text-3);}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;color:var(--text-1);line-height:1.6;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-q .sign{
  flex:none;width:26px;height:26px;position:relative;border-radius:50%;
  border:1px solid var(--brand-100);background:var(--brand-050);
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  left:50%;top:50%;transform:translate(-50%,-50%);
}
.faq-q .sign::before{width:11px;height:2px;}
.faq-q .sign::after{width:2px;height:11px;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.faq-item.open .faq-q{color:var(--brand);}
.faq-item.open .faq-q .sign::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 0 22px 16px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:800px;
}
.faq-item.open .faq-a{max-height:340px;}

/* ---------- CTA 区块 ---------- */
.cta-band{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:22px;
  padding:52px 44px;display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(42,75,155,.10),rgba(42,75,155,0) 70%);
}
.cta-band h2{font-size:clamp(22px,2.2vw,30px);line-height:1.4;margin-bottom:10px;}
.cta-band p{font-size:15.5px;color:var(--text-2);max-width:34em;}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);padding-top:64px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;max-width:26em;margin-bottom:16px;}
.footer-contact{font-size:13.5px;color:var(--text-2);line-height:1.9;}
.footer-platforms{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;}
.footer-platforms span{
  font-size:12.5px;color:var(--text-3);border:1px solid var(--line);
  background:#fff;border-radius:999px;padding:4px 12px;
}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px;letter-spacing:.5px;}
.footer-col li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .sep{opacity:.5;}

/* ---------- 底部转化条 ---------- */
.cta-bar{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:flex;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  box-shadow:var(--shadow-lg);padding:10px 12px 10px 22px;
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.cta-bar .tip{font-size:14px;font-weight:600;color:var(--text-1);white-space:nowrap;}
.cta-bar .btn-brand{height:42px;padding:0 20px;font-size:14px;border-radius:999px;}
.cta-bar .close{
  width:28px;height:28px;border:0;background:var(--bg-soft);border-radius:50%;
  color:var(--text-2);display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.cta-bar .close:hover{background:var(--brand-050);color:var(--brand);}
.cta-bar.is-hidden{opacity:0;transform:translateY(16px);pointer-events:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{max-width:100%;}
  .post-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:991.98px){
  .site-header .navbar{height:66px;}
  .navbar-collapse{
    position:absolute;top:calc(100% + 10px);left:0;right:0;z-index:1045;
    background:#fff;border:1px solid var(--line);border-radius:16px;
    box-shadow:var(--shadow-lg);padding:16px;margin:0;
  }
  .navbar-collapse.show{display:block;}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;margin-bottom:14px;}
  .nav-list a{padding:12px 14px;font-size:16px;border-radius:10px;}
  .nav-list a:hover{background:var(--brand-050);}
  .nav-list a::after{display:none;}
  .nav-list a.active{background:var(--brand-050);}
  .nav-actions{flex-direction:column;align-items:stretch;gap:10px;border-top:1px solid var(--line);padding-top:14px;}
  .nav-actions .btn-brand{width:100%;height:46px;}
  .nav-actions .nav-text{text-align:center;padding:6px 0;}
  .hero{padding:40px 0 52px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;min-height:0;}
  .hero-media{order:2;}
  .hero h1{max-width:none;}
  .hero-trust{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:40px;}
  .section{padding:68px 0;}
  .value-item,.value-item.reverse{grid-template-columns:1fr;gap:18px;}
  .value-item.reverse .value-num{justify-content:flex-start;order:-1;}
  .scene{grid-template-columns:1fr;gap:28px;}
  .scene.rev .scene-media{order:0;}
  .scene + .scene{margin-top:56px;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .partner-wall{grid-template-columns:repeat(2,minmax(0,1fr));}
  .quotes{grid-template-columns:1fr;}
  .cta-band{padding:40px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-bar{right:16px;bottom:16px;}
}
@media (max-width:767.98px){
  body{padding-bottom:0;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{flex:1 1 auto;}
  .post-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-bar{
    left:0;right:0;bottom:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;
    padding:10px 14px calc(10px + env(safe-area-inset-bottom));
    gap:10px;justify-content:space-between;
  }
  .cta-bar .tip{font-size:13px;}
  .cta-bar .btn-brand{flex:1;justify-content:center;height:44px;border-radius:10px;}
  .cta-bar .close{flex:none;}
}
@media (max-width:575.98px){
  .hero-trust{grid-template-columns:1fr;gap:14px;}
  .hero-tags span{font-size:12.5px;padding:4px 12px;}
  .section{padding:52px 0;}
  .hero-float{padding:10px 12px;left:12px;bottom:12px;}
  .cta-band{padding:32px 20px;}
  .cta-band .actions{width:100%;}
  .cta-band .actions .btn-brand,.cta-band .actions .btn-ghost{width:100%;}
  .footer-bottom{font-size:12px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --brand:#2A4B9B;
  --brand-700:#1B3268;
  --brand-050:#EDF2FC;
  --brand-100:#DCE6FA;
  --accent:#C08A4E;
  --accent-050:#F7EFE4;
  --bg:#FFFFFF;
  --bg-alt:#F6F8FC;
  --bg-soft:#EEF2F9;
  --text-1:#131A2A;
  --text-2:#5A6579;
  --text-3:#919BAD;
  --line:#E2E8F2;
  --shadow-sm:0 1px 2px rgba(19,26,42,.06);
  --shadow-md:0 10px 30px rgba(27,50,104,.08);
  --shadow-lg:0 20px 50px rgba(27,50,104,.12);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-primary:#2A4B9B;
  --bs-body-color:#131A2A;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E2E8F2;
  --bs-border-radius:12px;
  --bs-link-color:#2A4B9B;
  --bs-link-hover-color:#1B3268;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
h1,h2,h3,h4{color:var(--text-1);letter-spacing:-.01em;}
p{margin:0 0 1em;}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:20px;padding-right:20px;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:0;border-radius:var(--radius-btn);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;line-height:1;
  text-decoration:none;cursor:pointer;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),background .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-brand svg{flex:0 0 auto;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  border:1.5px solid var(--brand-100);background:transparent;color:var(--brand);
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;cursor:pointer;
  transition:background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand);transform:translateY(-1px);}
.btn-block{width:100%;}
.textlink{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);text-decoration:none;}
.textlink svg{transition:transform .2s ease;}
.textlink:hover{color:var(--brand-700);}
.textlink:hover svg{transform:translateX(4px);}

/* ============ 页头 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .22s ease;}
.site-header.is-scrolled{box-shadow:var(--shadow-md);}
.site-header .navbar{position:relative;display:flex;align-items:center;flex-wrap:nowrap;min-height:72px;padding:0;gap:16px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--brand);text-decoration:none;flex:0 0 auto;}
.brand-mark{width:36px;height:36px;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-top{font-size:15px;font-weight:700;color:var(--text-1);letter-spacing:.02em;}
.brand-sub{font-size:12px;color:var(--text-2);letter-spacing:.05em;}
.navbar-collapse{display:flex;align-items:center;flex:1 1 auto;min-width:0;}
.nav-list{display:flex;align-items:center;gap:26px;margin:0 0 0 auto;padding:0;list-style:none;}
.nav-list a{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--text-2);text-decoration:none;transition:color .2s ease;white-space:nowrap;}
.nav-list a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;background:var(--brand);transition:width .22s cubic-bezier(.2,.7,.3,1);}
.nav-list a:hover{color:var(--brand);}
.nav-list a:hover::after{width:100%;}
.nav-list a.active{color:var(--brand);font-weight:600;}
.nav-list a.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:18px;margin-left:32px;flex:0 0 auto;}
.nav-text{font-size:14px;font-weight:500;color:var(--text-2);text-decoration:none;white-space:nowrap;}
.nav-text:hover{color:var(--brand);}
.navbar-toggler{display:none;align-items:center;justify-content:center;width:42px;height:42px;padding:0;margin-left:auto;background:#fff;border:1px solid var(--line);border-radius:10px;cursor:pointer;}
.navbar-toggler:focus{outline:none;box-shadow:0 0 0 3px rgba(42,75,155,.12);}
.navbar-toggler-icon{width:20px;height:20px;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%232A4B9B' stroke-width='2.2' stroke-linecap='round' d='M5 9h20M5 15h20M5 21h20'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center;background-size:contain;}

/* ============ 面包屑 ============ */
.article-wrap{padding:26px 0 0;}
.breadcrumb-bar{display:flex;align-items:center;flex-wrap:wrap;gap:6px;margin-bottom:24px;font-size:13px;color:var(--text-3);}
.breadcrumb-bar a{color:var(--text-2);text-decoration:none;}
.breadcrumb-bar a:hover{color:var(--brand);}
.breadcrumb-bar svg{flex:0 0 auto;opacity:.7;}
.crumb-current{color:var(--text-1);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头部 ============ */
.article-head{max-width:820px;margin-bottom:36px;}
.article-head h1{
  font-size:clamp(26px,2.6vw,38px);
  line-height:1.35;
  font-weight:700;
  margin:0 0 18px;
  letter-spacing:-.015em;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.meta-badge{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;
  background:var(--accent-050);color:#96652F;
  border:1px solid #EADAC6;font-size:12px;font-weight:500;
}
.meta-sep{width:1px;height:12px;background:var(--line);}

/* ============ 两栏骨架 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start;}

/* ============ 正文排版 ============ */
.article-body{max-width:780px;font-size:17px;line-height:1.9;color:#26303F;word-break:break-word;}
.article-body > :first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2vw,26px);
  font-weight:700;line-height:1.45;
  margin:48px 0 18px;padding-left:16px;
  scroll-margin-top:88px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.34em;width:4px;height:18px;border-radius:2px;background:var(--accent);}
.article-body h3{font-size:20px;font-weight:600;line-height:1.5;margin:34px 0 12px;scroll-margin-top:88px;}
.article-body h4{font-size:17px;font-weight:600;margin:26px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding:0;list-style:none;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.55em;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:2px;background:var(--brand);}
.article-body ol{counter-reset:item;}
.article-body ol li{position:relative;padding-left:32px;margin-bottom:.6em;}
.article-body ol li::before{
  counter-increment:item;content:counter(item);
  position:absolute;left:0;top:.35em;
  width:20px;height:20px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-050);color:var(--brand);
  font-size:12px;font-weight:700;line-height:1;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:var(--brand-050);
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
  color:var(--text-2);font-size:16px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{max-width:100%;height:auto;border-radius:12px;margin:26px 0;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;line-height:1.7;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body strong{font-weight:700;color:var(--text-1);}
.article-body .table-scroll{overflow-x:auto;margin:26px 0;border:1px solid var(--line);border-radius:12px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:420px;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:var(--bg-alt);font-weight:600;}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* 标签 */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;padding-top:26px;border-top:1px solid var(--line);}
.tag-pill{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:999px;
  background:var(--bg-alt);border:1px solid var(--line);
  font-size:12px;font-weight:500;color:var(--text-2);
  text-decoration:none;transition:all .2s ease;
}
.tag-pill:hover{background:var(--brand-050);border-color:var(--brand-100);color:var(--brand);}

/* 上一篇 / 下一篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:34px;}
.post-nav a{
  display:block;padding:18px 20px;border:1px solid var(--line);border-radius:14px;
  background:#fff;text-decoration:none;box-shadow:var(--shadow-sm);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.post-nav a:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand-100);}
.post-nav .pn-label{display:block;font-size:12px;color:var(--text-3);margin-bottom:6px;letter-spacing:.06em;}
.post-nav .pn-title{display:block;font-size:15px;font-weight:600;line-height:1.6;color:var(--text-1);}
.post-nav a:hover .pn-title{color:var(--brand);}
.post-nav .pn-next{text-align:right;}

/* 空态 */
.empty-state{
  padding:64px 24px;text-align:center;
  background:var(--bg-alt);border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-state svg{margin:0 auto 18px;color:var(--brand);opacity:.65;}
.empty-state h2{font-size:20px;font-weight:700;margin:0 0 10px;padding:0;}
.empty-state h2::before{display:none;}
.empty-state p{font-size:14px;color:var(--text-2);margin:0 0 22px;}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px;}
.side-card{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;padding:22px;box-shadow:var(--shadow-sm);
}
.side-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;margin:0 0 14px;letter-spacing:.02em;}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand);}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--text-2);text-decoration:none;
  padding:7px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.toc-list a:hover{color:var(--brand);background:var(--brand-050);}
.toc-list a.is-current{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:var(--brand-050);}
.read-item{display:block;padding:12px 0;border-bottom:1px dashed var(--line);text-decoration:none;}
.read-item:first-child{padding-top:0;}
.read-item:last-child{border-bottom:0;padding-bottom:0;}
.read-item h3{
  font-size:14px;font-weight:600;line-height:1.6;margin:0 0 6px;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.read-item:hover h3{color:var(--brand);}
.read-item span{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.consult-card{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;}
.consult-card h3{font-size:18px;font-weight:700;margin:0 0 10px;}
.consult-card p{font-size:14px;line-height:1.75;color:var(--text-2);margin:0 0 18px;}

/* ============ 相关推荐 ============ */
.related{padding:72px 0 0;}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.related-head h2{font-size:clamp(22px,2.2vw,28px);font-weight:700;margin:0;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);text-decoration:none;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100);}
.post-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-badge{
  align-self:flex-start;padding:4px 10px;border-radius:999px;
  background:var(--accent-050);color:#96652F;border:1px solid #EADAC6;
  font-size:12px;font-weight:500;line-height:1.4;
}
.post-card h3{
  font-size:16px;font-weight:600;line-height:1.55;margin:0;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover h3{color:var(--brand);}
.post-card .excerpt{
  font-size:14px;line-height:1.7;color:var(--text-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .meta-row{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:12px;color:var(--text-3);}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);margin-top:96px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:48px;padding-bottom:48px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-2);margin:16px 0 18px;max-width:320px;}
.footer-contact{font-size:13px;line-height:1.9;color:var(--text-2);margin-bottom:18px;}
.footer-platforms{display:flex;flex-wrap:wrap;gap:8px;}
.footer-platforms span{font-size:12px;color:var(--text-2);padding:4px 10px;border:1px solid var(--line);border-radius:999px;background:#fff;}
.footer-col h4{font-size:14px;font-weight:700;margin:0 0 16px;color:var(--text-1);}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:14px;line-height:1.6;color:var(--text-2);text-decoration:none;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 24px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-layout{gap:36px;}
  .article-side{top:88px;}
}
@media (max-width:991.98px){
  .site-header .navbar{min-height:60px;}
  .navbar-toggler{display:inline-flex;}
  .navbar-collapse{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:#fff;border:1px solid var(--line);border-radius:0 0 16px 16px;
    box-shadow:var(--shadow-md);padding:16px 20px 22px;margin:0;
  }
  .navbar-collapse.show{display:block;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;margin:0 0 16px;}
  .nav-list a{display:block;padding:13px 0;font-size:15px;border-bottom:1px solid var(--line);}
  .nav-list a::after{display:none;}
  .nav-actions{flex-direction:column;align-items:stretch;gap:12px;margin-left:0;}
  .nav-actions .btn-brand{width:100%;}
  .nav-text{text-align:center;padding:6px 0;}
  .article-layout{grid-template-columns:1fr;gap:36px;}
  .article-side{position:static;top:auto;}
  .hero-pad{padding-top:8px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .site-footer{margin-top:72px;padding-top:52px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:15.5px;}
  .article-body{font-size:16.5px;line-height:1.85;}
  .article-head{margin-bottom:28px;}
  .article-body h2{margin-top:38px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .pn-next{text-align:left;}
  .related{padding-top:52px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575.98px){
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .brand-top{font-size:14px;}
  .brand-sub{font-size:11px;}
  .brand-mark{width:32px;height:32px;}
  .article-meta{font-size:12px;gap:8px;}
  .breadcrumb-bar{font-size:12px;}
  .crumb-current{max-width:200px;}
  .btn-brand,.btn-ghost{width:100%;}
  .empty-state{padding:44px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* roulang page: category1 */
:root{
  --brand:#2A4B9B;
  --brand-700:#1B3268;
  --brand-050:#EDF2FC;
  --brand-100:#DCE6FA;
  --accent:#C08A4E;
  --accent-050:#F7EFE4;
  --bg:#FFFFFF;
  --bg-alt:#F6F8FC;
  --bg-soft:#EEF2F9;
  --text-1:#131A2A;
  --text-2:#5A6579;
  --text-3:#919BAD;
  --line:#E2E8F2;
  --shadow-sm:0 1px 2px rgba(19,26,42,.06);
  --shadow-md:0 10px 30px rgba(27,50,104,.08);
  --shadow-lg:0 20px 50px rgba(27,50,104,.12);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --bs-primary:#2A4B9B;
  --bs-body-color:#131A2A;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E2E8F2;
  --bs-border-radius:12px;
  --bs-link-color:#2A4B9B;
  --bs-link-hover-color:#1B3268;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:1180px !important;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
}
section[id]{scroll-margin-top:88px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-md);}
.site-header .navbar{
  position:relative;
  min-height:72px;
  padding:0;
  align-items:center;
  flex-wrap:nowrap;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--brand-700);
  text-decoration:none;
  flex:none;
}
.brand:hover{color:var(--brand-700);}
.brand-mark{
  width:38px;
  height:38px;
  flex:none;
  color:var(--brand);
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.2;
}
.brand-top{
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text-1);
}
.brand-sub{
  font-size:12px;
  font-weight:500;
  color:var(--text-2);
  letter-spacing:.06em;
}
.navbar-toggler{
  border:1px solid var(--line);
  border-radius:10px;
  padding:9px 10px;
  background:#fff;
  margin-left:auto;
}
.navbar-toggler:focus{box-shadow:none;}
.navbar-toggler-icon{
  width:22px;
  height:22px;
  display:block;
  position:relative;
  background-image:none;
}
.navbar-toggler-icon::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:5px;
  height:2px;
  border-radius:2px;
  background:var(--brand-700);
  box-shadow:0 6px 0 var(--brand-700),0 12px 0 var(--brand-700);
}
.navbar-collapse{
  flex:1;
  justify-content:flex-end;
  align-items:center;
  gap:32px;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:26px;
}
.nav-list a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  text-decoration:none;
  transition:color .2s ease;
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  height:2px;
  width:0;
  border-radius:2px;
  background:var(--brand);
  transition:width .22s cubic-bezier(.2,.7,.3,1);
}
.nav-list a:hover{color:var(--brand);}
.nav-list a:hover::after{width:100%;}
.nav-list a.active{color:var(--brand);font-weight:600;}
.nav-list a.active::after{width:100%;}
.nav-actions{
  display:flex;
  align-items:center;
  gap:16px;
}
.nav-text{
  font-size:14px;
  font-weight:500;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-text:hover{color:var(--brand);}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  border:1px solid var(--brand);
  cursor:pointer;
  white-space:nowrap;
  transition:background .2s ease,transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease;
}
.btn-brand:hover{
  background:var(--brand-700);
  border-color:var(--brand-700);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-md);
}
.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  background:transparent;
  border:1.5px solid var(--brand-100);
  color:var(--brand);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease,transform .2s cubic-bezier(.2,.7,.3,1);
}
.btn-ghost:hover{
  background:var(--brand-050);
  border-color:var(--brand);
  color:var(--brand-700);
  transform:translateY(-1px);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.text-link svg{transition:transform .2s ease;}
.text-link:hover svg{transform:translateX(4px);}

/* ============ Banner ============ */
.page-banner{
  position:relative;
  overflow:hidden;
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
  padding:52px 0 46px;
  min-height:322px;
  display:flex;
  align-items:center;
}
.banner-deco{
  position:absolute;
  right:0;
  top:0;
  bottom:0;
  width:48%;
  background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  opacity:.16;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 55%);
  mask-image:linear-gradient(90deg,transparent 0%,#000 55%);
  pointer-events:none;
}
.page-banner .container{position:relative;z-index:1;}
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--text-3);display:inline-flex;align-items:center;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--accent);
  background:var(--accent-050);
  border:1px solid rgba(192,138,78,.28);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:16px;
}
.page-banner h1{
  font-size:clamp(30px,3.2vw,44px);
  line-height:1.25;
  font-weight:700;
  max-width:760px;
  margin-bottom:14px;
}
.banner-lead{
  font-size:17px;
  line-height:1.8;
  color:var(--text-2);
  max-width:640px;
  margin-bottom:22px;
}
.banner-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.pill{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  font-weight:500;
  padding:5px 12px;
  border-radius:999px;
  background:var(--brand-050);
  color:var(--brand);
  border:1px solid var(--brand-100);
}
.pill-accent{
  background:var(--accent-050);
  color:var(--accent);
  border-color:rgba(192,138,78,.3);
}
.pill-plain{
  background:#fff;
  color:var(--text-2);
  border-color:var(--line);
}

/* ============ 通用区块 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);}
.section-soft{background:#fff;}
.section-head{
  max-width:720px;
  margin-bottom:48px;
}
.section-head h2{
  font-size:clamp(24px,2.4vw,32px);
  line-height:1.35;
  margin-bottom:12px;
}
.section-head p{
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
}
.section-tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--brand);
  margin-bottom:12px;
  padding-left:12px;
  position:relative;
}
.section-tag::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:4px;
  height:14px;
  border-radius:2px;
  background:var(--accent);
}

/* ============ 时间线 ============ */
.timeline{
  position:relative;
  max-width:860px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;
  top:10px;
  bottom:10px;
  width:2px;
  background:linear-gradient(180deg,var(--brand-100) 0%,var(--line) 100%);
  border-radius:2px;
}
.tl-item{
  position:relative;
  padding-left:48px;
  padding-bottom:34px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;
  left:0;
  top:4px;
  width:24px;
  height:24px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--brand);
  box-shadow:0 0 0 4px var(--brand-050);
}
.tl-item.is-key .tl-dot{
  background:var(--accent);
  border-color:var(--accent);
  box-shadow:0 0 0 4px var(--accent-050);
}
.tl-ep{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--brand);
  background:var(--brand-050);
  border-radius:999px;
  padding:3px 10px;
  margin-bottom:10px;
}
.tl-item.is-key .tl-ep{
  color:var(--accent);
  background:var(--accent-050);
}
.tl-item h3{
  font-size:20px;
  line-height:1.5;
  font-weight:600;
  margin-bottom:6px;
}
.tl-item p{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  max-width:660px;
}

/* ============ 关键节点卡 ============ */
.node-row{align-items:flex-start;}
.node-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  padding:16px;
  height:100%;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.node-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:var(--brand-100);
}
.node-thumb{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-img);
  background:var(--bg-soft);
  margin-bottom:16px;
}
.node-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s cubic-bezier(.2,.7,.3,1);
}
.node-card:hover .node-thumb img{transform:scale(1.03);}
.node-thumb.ratio-43{aspect-ratio:4/3;}
.node-thumb.ratio-169{aspect-ratio:16/9;}
.node-badge{
  display:inline-block;
  font-size:12px;
  font-weight:500;
  padding:3px 10px;
  border-radius:999px;
  background:var(--accent-050);
  color:var(--accent);
  border:1px solid rgba(192,138,78,.28);
  margin-bottom:10px;
}
.node-card h3{
  font-size:19px;
  line-height:1.5;
  font-weight:600;
  margin-bottom:8px;
}
.node-card p{
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  margin-bottom:14px;
}

/* ============ 读法条目 ============ */
.read-list{
  border-top:1px solid var(--line);
}
.read-row{
  display:grid;
  grid-template-columns:64px 1fr 150px;
  align-items:start;
  gap:24px;
  padding:32px 0;
  border-bottom:1px solid var(--line);
}
.read-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:50%;
  border:1.5px solid var(--brand-100);
  color:var(--brand);
  font-size:15px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.read-row h3{
  font-size:19px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:6px;
}
.read-row p{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  max-width:600px;
}
.read-row .read-link{justify-self:end;padding-top:8px;}

/* ============ FAQ ============ */
.faq{
  max-width:860px;
  border-top:1px solid var(--line);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 4px;
  background:none;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text-1);
  cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  position:relative;
  width:16px;
  height:16px;
  flex:none;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
  transition:transform .25s ease;
}
.faq-icon::before{left:0;right:0;top:7px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:7px;width:2px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s cubic-bezier(.2,.7,.3,1);
}
.faq-item.open .faq-a{max-height:320px;}
.faq-a p{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  padding:0 4px 26px 16px;
  max-width:740px;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:72px 0;
}
.cta-deco{
  position:absolute;
  right:0;
  top:0;
  bottom:0;
  width:38%;
  background:url(/assets/images/backpic/back-3.webp) center/cover no-repeat;
  opacity:.12;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 60%);
  mask-image:linear-gradient(90deg,transparent,#000 60%);
  pointer-events:none;
}
.cta-band .container{position:relative;z-index:1;}
.cta-inner{
  max-width:660px;
}
.cta-inner h2{
  font-size:clamp(24px,2.4vw,32px);
  line-height:1.35;
  margin-bottom:12px;
}
.cta-inner p{
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  margin-bottom:26px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  padding-top:64px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
  margin-bottom:16px;
  max-width:320px;
}
.footer-contact{
  font-size:13px;
  line-height:1.9;
  color:var(--text-2);
  margin-bottom:16px;
}
.footer-platforms{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.footer-platforms span{
  font-size:12px;
  color:var(--text-2);
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  padding:4px 10px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
  color:var(--text-1);
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,
.footer-col span{
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .navbar-collapse{gap:24px;}
  .nav-list{gap:20px;}
}
@media (max-width:991.98px){
  .site-header .navbar{min-height:64px;}
  .navbar-collapse{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    display:block;
    background:#fff;
    border:1px solid var(--line);
    border-radius:16px;
    box-shadow:var(--shadow-lg);
    padding:14px;
    z-index:1040;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-list a{display:block;padding:12px 14px;border-radius:10px;font-size:15px;}
  .nav-list a::after{display:none;}
  .nav-list a:hover{background:var(--brand-050);}
  .nav-list a.active{background:var(--brand-050);}
  .nav-actions{
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    margin-top:12px;
    padding-top:14px;
    border-top:1px solid var(--line);
  }
  .nav-actions .btn-brand{width:100%;}
  .nav-actions .nav-text{text-align:center;padding:6px 0;}
  .page-banner{min-height:0;padding:44px 0 40px;}
  .banner-deco{width:60%;opacity:.12;}
  .section{padding:72px 0;}
  .read-row{grid-template-columns:56px 1fr;gap:18px;}
  .read-row .read-link{grid-column:2;justify-self:start;padding-top:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .page-banner h1{font-size:clamp(26px,5.4vw,32px);}
  .banner-lead{font-size:15.5px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:34px;}
  .tl-item{padding-left:40px;padding-bottom:28px;}
  .timeline::before{left:9px;}
  .tl-dot{width:20px;height:20px;}
  .node-thumb.ratio-43{aspect-ratio:16/9;}
  .faq-q{font-size:16px;padding:20px 2px;}
  .cta-band{padding:56px 0;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn-brand,
  .cta-actions .btn-ghost{width:100%;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .read-row{grid-template-columns:1fr;gap:12px;}
  .read-row .read-link{grid-column:1;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category2 */
:root{
  --brand:#2A4B9B;
  --brand-700:#1B3268;
  --brand-050:#EDF2FC;
  --brand-100:#DCE6FA;
  --accent:#C08A4E;
  --accent-050:#F7EFE4;
  --bg:#FFFFFF;
  --bg-alt:#F6F8FC;
  --bg-soft:#EEF2F9;
  --text-1:#131A2A;
  --text-2:#5A6579;
  --text-3:#919BAD;
  --line:#E2E8F2;
  --shadow-sm:0 1px 2px rgba(19,26,42,.06);
  --shadow-md:0 10px 30px rgba(27,50,104,.08);
  --shadow-lg:0 20px 50px rgba(27,50,104,.12);
  --radius-card:16px;
  --radius-btn:10px;
  --bs-primary:#2A4B9B;
  --bs-body-color:#131A2A;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E2E8F2;
  --bs-border-radius:0.75rem;
  --bs-link-color:#2A4B9B;
  --bs-link-hover-color:#1B3268;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-md)}
.site-header .navbar{
  padding:0;
  min-height:72px;
  --bs-navbar-padding-y:0;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--brand);
  flex:0 0 auto;
}
.brand:hover{color:var(--brand-700)}
.brand-mark{width:38px;height:38px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-top{font-size:16px;font-weight:700;color:var(--text-1);letter-spacing:.5px}
.brand-sub{font-size:12px;color:var(--text-2);letter-spacing:1px;margin-top:3px}

.navbar-collapse{
  display:flex;
  align-items:center;
  flex-basis:auto;
  flex-grow:1;
}
@media (min-width:992px){
  .navbar-collapse{display:flex !important;}
}
.nav-list{
  display:flex;
  align-items:center;
  gap:28px;
  margin:0 auto;
  padding:0;
}
.nav-list a{
  position:relative;
  display:inline-block;
  padding:8px 0;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  transition:color .2s ease;
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transition:width .25s cubic-bezier(.2,.7,.3,1);
}
.nav-list a:hover{color:var(--brand)}
.nav-list a:hover::after{width:100%}
.nav-list a.active{color:var(--brand);font-weight:600}
.nav-list a.active::after{width:100%}

.nav-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.nav-text{font-size:14px;color:var(--text-2);font-weight:500}
.nav-text:hover{color:var(--brand)}

.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{
  background:var(--brand-700);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-md);
}
.btn-brand:active{transform:translateY(0);box-shadow:none}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  border:1.5px solid var(--brand-100);
  background:transparent;
  color:var(--brand);
  font-size:15px;
  font-weight:600;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-100);transform:translateY(-1px)}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(4px)}
.link-arrow:hover{color:var(--brand-700)}

.navbar-toggler{
  width:44px;
  height:44px;
  padding:0;
  border:1px solid var(--line);
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:#fff;
  box-shadow:none;
}
.navbar-toggler:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:2px}
.navbar-toggler-icon{
  width:22px;
  height:22px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23131A2A' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M4 7h16M4 12h16M4 17h16'/%3E%3C/svg%3E");
  background-size:22px 22px;
  background-position:center;
}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
  padding:64px 0 60px;
}
.page-hero::after{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:46%;
  height:100%;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.16;
  -webkit-mask-image:linear-gradient(to right,transparent,#000 55%);
  mask-image:linear-gradient(to right,transparent,#000 55%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb-nav{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb-nav a{color:var(--text-2);font-size:13px}
.breadcrumb-nav a:hover{color:var(--brand)}
.breadcrumb-nav svg{flex:0 0 auto;opacity:.7}
.breadcrumb-nav .current{color:var(--text-1);font-weight:500}
.page-hero h1{
  font-size:clamp(30px,3.2vw,44px);
  line-height:1.25;
  max-width:640px;
  letter-spacing:.4px;
}
.page-hero h1 .h1-dot{color:var(--brand);padding:0 6px}
.page-hero .hero-lead{
  margin-top:16px;
  font-size:16px;
  color:var(--text-2);
  max-width:560px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  font-size:12px;
  font-weight:500;
  border-radius:999px;
  background:var(--accent-050);
  color:var(--accent);
  border:1px solid rgba(192,138,78,.28);
}
.pill.pill-brand{
  background:var(--brand-050);
  color:var(--brand);
  border-color:var(--brand-100);
}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section.tight{padding:72px 0}
.section.alt{background:var(--bg-alt)}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:2px;
  color:var(--accent);
  margin-bottom:14px;
  text-transform:none;
}
.section-head h2{
  font-size:clamp(24px,2.4vw,32px);
  line-height:1.35;
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}

/* ---------- Person grid ---------- */
.person-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.person-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.person-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:var(--brand-100);
}
.person-media{
  position:relative;
  aspect-ratio:4/5;
  overflow:hidden;
  background:var(--bg-soft);
}
.person-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s cubic-bezier(.2,.7,.3,1);
}
.person-card:hover .person-media img{transform:scale(1.04)}
.person-body{padding:20px 20px 22px}
.person-body h3{font-size:20px;line-height:1.4}
.person-role{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px}
.person-desc{
  margin-top:12px;
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

/* ---------- Relation path ---------- */
.relation-wrap{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:52px;
  align-items:start;
}
.relation-text h2{font-size:clamp(24px,2.2vw,30px);line-height:1.4}
.relation-text p{margin-top:18px;color:var(--text-2);font-size:16px;line-height:1.9}
.relation-note{
  margin-top:24px;
  padding:18px 20px;
  background:var(--bg-soft);
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
}
.path-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  padding:30px 24px 26px;
}
.path-card h3{font-size:17px;margin-bottom:24px;color:var(--text-1)}
.relation-path{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:0;
}
.path-step{
  position:relative;
  padding:30px 8px 0;
  text-align:center;
}
.path-step::before{
  content:"";
  position:absolute;
  top:2px;
  left:50%;
  transform:translateX(-50%);
  width:14px;
  height:14px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--brand);
  z-index:2;
}
.path-step:not(:last-child)::after{
  content:"";
  position:absolute;
  top:8px;
  left:50%;
  right:-50%;
  height:2px;
  background:var(--brand-100);
  z-index:1;
}
.path-step .step-name{
  display:block;
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
}
.path-step .step-txt{
  display:block;
  margin-top:8px;
  font-size:12.5px;
  line-height:1.6;
  color:var(--text-2);
}

/* ---------- Points ---------- */
.point-list{border-top:1px solid var(--line)}
.point-row{
  display:grid;
  grid-template-columns:80px 1fr;
  gap:28px;
  padding:30px 0;
  border-bottom:1px solid var(--line);
  align-items:start;
}
.point-num{
  width:46px;
  height:46px;
  border-radius:50%;
  border:1.5px solid var(--brand-100);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:600;
}
.point-row h3{font-size:19px}
.point-row p{margin-top:10px;color:var(--text-2);font-size:15px;line-height:1.8;max-width:760px}
.point-row .link-arrow{margin-top:14px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:860px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 0;
  cursor:pointer;
  list-style:none;
  font-size:17px;
  font-weight:600;
  color:var(--text-1);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-mark{
  flex:0 0 auto;
  width:24px;
  height:24px;
  border-radius:50%;
  background:var(--brand-050);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:600;
  line-height:1;
}
.faq-mark::before{content:"+"}
.faq-item[open] .faq-mark::before{content:"−"}
.faq-body{
  padding:0 0 22px 16px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  max-width:780px;
}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;
  overflow:hidden;
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:72px 0;
}
.cta-block::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-40px;
  width:340px;
  height:340px;
  border-radius:50%;
  border:1px dashed var(--brand-100);
  pointer-events:none;
}
.cta-block::before{
  content:"";
  position:absolute;
  right:70px;
  bottom:-90px;
  width:220px;
  height:220px;
  border-radius:50%;
  background:var(--accent-050);
  opacity:.7;
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;max-width:680px}
.cta-inner h2{font-size:clamp(24px,2.4vw,32px)}
.cta-inner p{margin-top:16px;color:var(--text-2);font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
  max-width:330px;
}
.footer-contact{
  margin-top:18px;
  font-size:13px;
  line-height:1.9;
  color:var(--text-2);
}
.footer-platforms{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-platforms span{
  font-size:12px;
  padding:4px 10px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--text-2);
}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1)}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a,
.footer-col ul li span{
  font-size:14px;
  color:var(--text-2);
  transition:color .2s ease;
}
.footer-col ul li a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .container{max-width:100%}
  .relation-wrap{gap:36px}
}
@media (max-width:991.98px){
  .site-header .navbar{min-height:64px;flex-wrap:wrap;padding:8px 0}
  .navbar-collapse{
    flex-basis:100%;
    flex-grow:1;
    margin-top:12px;
    border-top:1px solid var(--line);
    padding-top:12px;
  }
  .nav-list{
    flex-direction:column;
    align-items:flex-start;
    gap:4px;
    margin:0;
    width:100%;
  }
  .nav-list a{padding:12px 0;width:100%;font-size:15px}
  .nav-list a::after{display:none}
  .nav-list a.active{background:var(--brand-050);border-radius:8px;padding-left:12px}
  .nav-actions{
    flex-direction:column;
    align-items:stretch;
    gap:12px;
    margin:16px 0 8px;
    width:100%;
  }
  .nav-text{text-align:center;padding:8px 0}
  .nav-actions .btn-brand{width:100%}
  .page-hero{padding:44px 0 46px}
  .page-hero::after{width:70%;opacity:.12}
  .section{padding:66px 0}
  .section.tight{padding:56px 0}
  .section-head{margin-bottom:34px}
  .person-grid{grid-template-columns:repeat(2,1fr);gap:22px}
  .relation-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-block{padding:58px 0}
}
@media (max-width:767.98px){
  .page-hero h1{font-size:clamp(26px,5.4vw,34px)}
  .hero-lead{font-size:15px}
  .section{padding:52px 0}
  .point-row{grid-template-columns:56px 1fr;gap:16px;padding:24px 0}
  .point-num{width:40px;height:40px;font-size:14px}
  .path-card{padding:24px 16px 20px}
  .relation-path{grid-template-columns:1fr;gap:0}
  .path-step{
    display:grid;
    grid-template-columns:24px 1fr;
    gap:14px;
    text-align:left;
    padding:0 0 22px 0;
  }
  .path-step::before{position:relative;top:6px;left:0;transform:none;grid-row:1}
  .path-step:not(:last-child)::after{
    top:20px;
    left:6px;
    right:auto;
    width:2px;
    height:100%;
    background:var(--brand-100);
  }
  .path-step .step-name{grid-column:2;grid-row:1}
  .path-step .step-txt{grid-column:2;grid-row:2;margin-top:4px}
  .faq-item summary{font-size:16px;padding:18px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:38px}
  .footer-brand p{max-width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .person-grid{grid-template-columns:1fr}
  .btn-brand,.btn-ghost{width:100%}
  .cta-actions{flex-direction:column;align-items:stretch}
  .brand-top{font-size:15px}
  .brand-sub{font-size:11px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category3 */
:root{
  --brand:#2A4B9B;
  --brand-700:#1B3268;
  --brand-050:#EDF2FC;
  --brand-100:#DCE6FA;
  --accent:#C08A4E;
  --accent-050:#F7EFE4;
  --bg:#FFFFFF;
  --bg-alt:#F6F8FC;
  --bg-soft:#EEF2F9;
  --text-1:#131A2A;
  --text-2:#5A6579;
  --text-3:#919BAD;
  --line:#E2E8F2;
  --shadow-sm:0 1px 2px rgba(19,26,42,.06);
  --shadow-md:0 10px 30px rgba(27,50,104,.08);
  --shadow-lg:0 20px 50px rgba(27,50,104,.12);
  --radius-card:16px;
  --radius-btn:10px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#2A4B9B;
  --bs-body-color:#131A2A;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E2E8F2;
  --bs-border-radius:12px;
  --bs-link-color:#2A4B9B;
  --bs-link-hover-color:#1B3268;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text-1);letter-spacing:.005em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:1180px;padding-left:20px;padding-right:20px;margin:0 auto;width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-md)}
.navbar{
  position:relative;
  height:72px;padding:0;display:flex;align-items:center;justify-content:space-between;
  --bs-navbar-padding-y:0;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--brand);flex:0 0 auto}
.brand-mark{width:34px;height:34px;flex:0 0 auto;color:var(--brand)}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-top{font-size:16px;font-weight:700;color:var(--text-1);letter-spacing:.02em}
.brand-sub{font-size:12px;color:var(--text-2);letter-spacing:.1em}
.navbar-collapse{flex:1 1 auto}
.nav-list{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
.nav-list a{
  position:relative;display:inline-block;padding:6px 2px;
  font-size:15px;font-weight:500;color:var(--text-2);
}
.nav-list a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand);transition:width .22s var(--ease);
}
.nav-list a:hover{color:var(--brand)}
.nav-list a:hover::after{width:100%}
.nav-list a.active{color:var(--brand)}
.nav-list a.active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:18px}
.nav-text{font-size:14px;color:var(--text-2);white-space:nowrap}
.nav-text:hover{color:var(--brand)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-brand:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-brand:active{transform:none;box-shadow:none}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  border:1.5px solid var(--brand-100);background:transparent;color:var(--brand);
  font-size:15px;font-weight:600;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost:hover{background:var(--brand-050);border-color:var(--brand);color:var(--brand-700);transform:translateY(-1px)}
.navbar-toggler{
  width:44px;height:40px;padding:0;border:1px solid var(--line);border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;background:#fff;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(42,75,155,.12);border-color:var(--brand)}
.navbar-toggler-icon{width:20px;height:20px;background-size:100% 100%}

@media (min-width:992px){
  .navbar-collapse{display:flex!important;align-items:center;justify-content:flex-end;gap:38px}
}
@media (max-width:991.98px){
  .navbar{height:60px}
  .brand-mark{width:30px;height:30px}
  .brand-top{font-size:15px}
  .brand-sub{font-size:11px}
  .navbar-collapse{
    position:absolute;top:100%;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
    padding:16px 20px 24px;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list a{display:block;padding:13px 2px;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-list a::after{display:none}
  .nav-list a.active{color:var(--brand);font-weight:600}
  .nav-actions{flex-direction:column;align-items:stretch;gap:12px;margin-top:20px}
  .nav-actions .btn-brand{width:100%}
  .nav-text{text-align:center;padding:6px 0}
}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;background:var(--bg-alt);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') right center/cover no-repeat;
  opacity:.18;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(246,248,252,.98) 0%,rgba(246,248,252,.94) 52%,rgba(246,248,252,.55) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:34px;padding-bottom:52px;min-height:320px;display:flex;flex-direction:column;justify-content:center}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand)}
.crumb svg{width:12px;height:12px;opacity:.6}
.crumb span{color:var(--text-1);font-weight:500}
.page-hero h1{
  font-size:clamp(28px,3vw,40px);
  line-height:1.28;font-weight:700;max-width:780px;
}
.hero-lead{margin:16px 0 0;font-size:16px;color:var(--text-2);max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags .pill{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:500;
  border:1px solid var(--line);background:#fff;color:var(--text-2);
}
@media (max-width:767.98px){
  .page-hero .container{padding-top:26px;padding-bottom:40px;min-height:0}
  .hero-lead{font-size:15px}
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-soft{background:var(--bg-soft)}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--accent-050);color:var(--accent);
  font-size:12px;font-weight:600;letter-spacing:.06em;margin-bottom:14px;
}
.eyebrow.is-brand{background:var(--brand-050);color:var(--brand)}
.h2{font-size:clamp(23px,2.4vw,30px);line-height:1.38;margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:15.5px;margin:0}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand);
}
.text-link svg{width:14px;height:14px;transition:transform .2s var(--ease)}
.text-link:hover{color:var(--brand-700)}
.text-link:hover svg{transform:translateX(4px)}
@media (max-width:991.98px){ .section{padding:72px 0} }
@media (max-width:767.98px){ .section{padding:52px 0} .section-head{margin-bottom:32px} }

/* ---------- split rows ---------- */
.split-row{
  display:grid;grid-template-columns:1fr 1fr;
  gap:56px;align-items:center;
}
.split-row + .split-row{margin-top:72px}
.split-media{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease)}
.split-row:hover .split-media img{transform:scale(1.03)}
.split-media::after{
  content:"";position:absolute;inset:0;border-radius:16px;
  border:1px solid rgba(19,26,42,.06);pointer-events:none;
}
.split-row.reverse .split-media{order:2}
.split-row.reverse .split-body{order:1}
.split-body h2{font-size:clamp(21px,2.1vw,27px);margin:14px 0 14px}
.split-body p{color:var(--text-2);font-size:15.5px;line-height:1.85;margin-bottom:14px}
.mini-list{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:8px}
.mini-list li{
  position:relative;padding-left:18px;
  font-size:14.5px;color:var(--text-2);
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;background:var(--brand);opacity:.7;
}
@media (max-width:991.98px){
  .split-row{grid-template-columns:1fr;gap:28px}
  .split-row + .split-row{margin-top:52px}
  .split-row.reverse .split-media{order:0}
  .split-row.reverse .split-body{order:1}
}

/* ---------- dot line ---------- */
.dot-line{
  height:6px;margin:72px 0;
  background-image:radial-gradient(var(--brand-100) 1.8px,transparent 1.8px);
  background-size:16px 6px;background-repeat:repeat-x;
}
@media (max-width:767.98px){ .dot-line{margin:48px 0} }

/* ---------- stat cards ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{
  background:var(--bg-soft);border-radius:14px;padding:26px 22px;
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);background:#E8EEF9}
.stat-num{
  font-size:32px;font-weight:700;color:var(--brand);line-height:1.2;
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.stat-unit{font-size:14px;font-weight:600;color:var(--brand);margin-left:2px}
.stat-desc{font-size:12.5px;color:var(--text-2);margin-top:8px;line-height:1.7}
@media (max-width:991.98px){ .stat-grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width:575.98px){ .stat-grid{grid-template-columns:1fr} .stat-num{font-size:28px} }

/* ---------- check list ---------- */
.check-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:16px 36px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--text-2)}
.check-list .ck{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:#fff;border:1px solid var(--brand-100);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;margin-top:3px;
}
.check-list .ck svg{width:12px;height:12px}
.check-list strong{color:var(--text-1);font-weight:600;margin-right:4px}
@media (max-width:767.98px){ .check-list{grid-template-columns:1fr;gap:14px} }

/* ---------- faq ---------- */
.faq-wrap{max-width:840px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:16.5px;font-weight:600;color:var(--text-1);
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:22px;font-weight:400;line-height:1;
  color:var(--brand);transition:transform .22s var(--ease);
}
.faq-item[open] summary::after{content:"−"}
.faq-body{
  margin:0 0 22px;padding:16px 20px;
  background:var(--bg-alt);border-radius:12px;
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ---------- cta ---------- */
.cta-block{
  position:relative;overflow:hidden;
  background:var(--bg-alt);border-radius:20px;
  padding:64px 40px;text-align:center;
}
.cta-block::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(var(--brand-100) 2px,transparent 2px);
  background-size:22px 22px;opacity:.55;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
}
.cta-block > *{position:relative;z-index:1}
.cta-block h2{font-size:clamp(22px,2.3vw,29px);margin-bottom:12px}
.cta-block p{color:var(--text-2);font-size:15.5px;max-width:560px;margin:0 auto 28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
@media (max-width:767.98px){
  .cta-block{padding:44px 22px;border-radius:16px}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%}
}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);margin-top:96px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;
  padding-top:64px;
}
.footer-brand p{font-size:14px;color:var(--text-2);margin:18px 0 16px;max-width:330px;line-height:1.85}
.footer-contact{font-size:13.5px;color:var(--text-2);line-height:1.9}
.footer-platforms{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.footer-platforms span{
  font-size:12px;color:var(--text-3);
  padding:4px 10px;border:1px solid var(--line);border-radius:999px;background:#fff;
}
.footer-col h4{font-size:14.5px;font-weight:700;margin-bottom:16px;color:var(--text-1)}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2);transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:52px;padding:22px 0 30px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
@media (max-width:991.98px){
  .site-footer{margin-top:72px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding-top:52px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;margin-top:36px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category4 */
:root{
  --brand:#2A4B9B;
  --brand-700:#1B3268;
  --brand-050:#EDF2FC;
  --brand-100:#DCE6FA;
  --accent:#C08A4E;
  --accent-050:#F7EFE4;
  --bg:#FFFFFF;
  --bg-alt:#F6F8FC;
  --bg-soft:#EEF2F9;
  --text-1:#131A2A;
  --text-2:#5A6579;
  --text-3:#919BAD;
  --line:#E2E8F2;
  --danger:#C0392B;
  --shadow-sm:0 1px 2px rgba(19,26,42,.06);
  --shadow-md:0 10px 30px rgba(27,50,104,.08);
  --shadow-lg:0 20px 50px rgba(27,50,104,.12);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#2A4B9B;
  --bs-body-color:#131A2A;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E2E8F2;
  --bs-border-radius:.75rem;
  --bs-link-color:#2A4B9B;
  --bs-link-hover-color:#1B3268;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1400px){ .container{max-width:1240px;} }

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-md);}
.site-header .navbar{
  height:72px;
  padding:0;
  display:flex;
  align-items:center;
  gap:20px;
  flex-wrap:nowrap;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--brand);
  flex-shrink:0;
}
.brand:hover{color:var(--brand-700);}
.brand-mark{width:38px;height:38px;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-top{font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--text-1);}
.brand-sub{font-size:12px;font-weight:500;color:var(--brand);letter-spacing:.06em;}
.navbar-toggler{
  margin-left:auto;
  border:1px solid var(--line);
  border-radius:8px;
  padding:6px 10px;
  background:#fff;
  box-shadow:none;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(42,75,155,.12);}
.navbar-toggler-icon{
  display:block;
  width:20px;height:14px;
  background-image:none;
  position:relative;
}
.navbar-toggler-icon::before,
.navbar-toggler-icon::after,
.navbar-toggler-icon span{content:"";}
.navbar-toggler-icon::before,
.navbar-toggler-icon::after{
  position:absolute;left:0;width:20px;height:2px;background:var(--text-1);border-radius:2px;
}
.navbar-toggler-icon::before{top:0;}
.navbar-toggler-icon::after{bottom:0;}
.navbar-collapse{display:flex;align-items:center;gap:24px;flex:1;}
.nav-list{
  display:flex;
  align-items:center;
  gap:26px;
  margin:0 0 0 8px;
  flex:1;
}
.nav-list a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
}
.nav-list a::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:2px;background:var(--brand);
  border-radius:2px;
  transition:width .22s var(--ease);
}
.nav-list a:hover{color:var(--brand);}
.nav-list a:hover::after{width:100%;}
.nav-list a.active{color:var(--brand);font-weight:600;}
.nav-list a.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:16px;flex-shrink:0;}
.nav-text{
  font-size:14px;
  font-weight:500;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-text:hover{color:var(--brand);}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  border:1px solid var(--brand);
  white-space:nowrap;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-brand:hover{
  background:var(--brand-700);
  border-color:var(--brand-700);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-md);
}
.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  border:1.5px solid var(--brand-100);
  background:transparent;
  color:var(--brand);
  font-size:15px;
  font-weight:600;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand);transform:translateY(-1px);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow svg{transition:transform .2s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}
.link-arrow:hover{color:var(--brand-700);}
@media (max-width:991px){
  .site-header .navbar{height:60px;}
  .navbar-collapse{
    position:absolute;
    top:60px;left:0;right:0;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
    padding:18px 20px 24px;
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .navbar-collapse.collapse:not(.show){display:none;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;margin:0 0 12px;}
  .nav-list a{display:block;padding:12px 0;font-size:16px;border-bottom:1px solid var(--line);}
  .nav-list a::after{display:none;}
  .nav-list a.active{color:var(--brand);}
  .nav-actions{flex-direction:column;align-items:stretch;gap:12px;}
  .nav-text{padding:8px 0;text-align:center;}
  .btn-brand{width:100%;height:46px;}
}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:22px 0 0;background:var(--bg);}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  flex-wrap:wrap;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--brand);}
.crumb svg{color:var(--text-3);flex-shrink:0;}
.crumb .now{color:var(--text-1);font-weight:500;}

/* ---------- page banner ---------- */
.page-banner{
  position:relative;
  overflow:hidden;
  background:var(--bg);
  padding:44px 0 52px;
}
.page-banner::before{
  content:"";
  position:absolute;
  top:0;right:0;
  width:46%;
  height:100%;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  opacity:.15;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 55%);
  mask-image:linear-gradient(90deg,transparent 0%,#000 55%);
  pointer-events:none;
}
.banner-inner{position:relative;z-index:2;max-width:720px;}
.banner-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--accent);
  background:var(--accent-050);
  border:1px solid #EBD9C2;
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:18px;
}
.page-banner h1{
  font-size:clamp(28px,3vw,42px);
  font-weight:700;
  line-height:1.26;
  letter-spacing:-.01em;
  color:var(--text-1);
}
.page-banner h1 .sep{color:var(--brand-100);font-weight:400;margin:0 6px;}
.page-banner h1 em{font-style:normal;color:var(--brand);}
.banner-lead{
  margin-top:14px;
  font-size:16px;
  color:var(--text-2);
  max-width:620px;
}
.banner-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid var(--line);
  max-width:620px;
}
.banner-meta span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
}
.banner-meta svg{color:var(--brand);flex-shrink:0;}

/* ---------- section base ---------- */
.section{padding:88px 0;}
.section.alt{background:var(--bg-alt);}
.section.soft{background:var(--bg-soft);}
.sec-head{max-width:660px;margin-bottom:44px;}
.sec-eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--accent);
  margin-bottom:12px;
}
.sec-head h2{
  font-size:clamp(24px,2.4vw,32px);
  font-weight:700;
  line-height:1.35;
  color:var(--text-1);
}
.sec-head p{margin-top:12px;font-size:15px;color:var(--text-2);}
@media (max-width:991px){ .section{padding:64px 0;} }
@media (max-width:575px){ .section{padding:48px 0;} }

/* ---------- steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 48px;
}
.step{
  position:relative;
  display:flex;
  gap:20px;
  padding:0 0 40px 0;
}
.step:last-child,.step:nth-last-child(2){padding-bottom:0;}
.step-num{
  position:relative;
  flex-shrink:0;
  width:40px;height:40px;
  border-radius:50%;
  border:1.5px solid var(--brand-100);
  background:var(--brand-050);
  color:var(--brand);
  font-size:15px;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step:not(:nth-last-child(1)):not(:nth-last-child(2)) .step-num::after{
  content:"";
  position:absolute;
  left:50%;top:46px;
  width:1.5px;height:calc(100% + 4px);
  background:linear-gradient(180deg,var(--brand-100),rgba(220,230,250,.2));
  transform:translateX(-50%);
}
.step-body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.5;
  color:var(--text-1);
  margin-bottom:6px;
}
.step-body p{font-size:14px;color:var(--text-2);line-height:1.8;}
.step-body .step-note{
  display:inline-block;
  margin-top:10px;
  font-size:12px;
  color:var(--accent);
  background:var(--accent-050);
  border-radius:999px;
  padding:3px 10px;
}
@media (max-width:767px){
  .steps{grid-template-columns:1fr;gap:0;}
  .step{padding-bottom:32px;}
  .step-num::after{display:none !important;}
}

/* ---------- scope list ---------- */
.scope-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:start;
}
.scope-list{display:flex;flex-direction:column;gap:2px;}
.scope-item{
  display:flex;
  gap:16px;
  padding:20px 4px;
  border-bottom:1px solid var(--line);
}
.scope-item:first-child{border-top:1px solid var(--line);}
.scope-check{
  flex-shrink:0;
  width:24px;height:24px;
  margin-top:4px;
  border-radius:7px;
  background:var(--brand-050);
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.scope-item h3{
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
  line-height:1.6;
}
.scope-item p{font-size:14px;color:var(--text-2);margin-top:4px;}
.scope-aside{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  padding:26px;
}
.scope-aside h3{font-size:18px;font-weight:600;margin-bottom:14px;}
.scope-aside ul{display:flex;flex-direction:column;gap:12px;}
.scope-aside li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
}
.scope-aside li::before{
  content:"";
  flex-shrink:0;
  width:6px;height:6px;
  margin-top:9px;
  border-radius:2px;
  background:var(--accent);
}
.scope-aside .aside-foot{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
@media (max-width:991px){
  .scope-grid{grid-template-columns:1fr;gap:36px;}
}

/* ---------- form ---------- */
.form-wrap{
  display:grid;
  grid-template-columns:0.85fr 1.15fr;
  gap:56px;
  align-items:start;
}
.form-intro h2{font-size:clamp(23px,2.2vw,30px);font-weight:700;line-height:1.4;}
.form-intro p{margin-top:14px;font-size:15px;color:var(--text-2);}
.form-intro .mini-list{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.form-intro .mini-list li{
  display:flex;gap:10px;font-size:14px;color:var(--text-2);
}
.form-intro .mini-list svg{color:var(--brand);flex-shrink:0;margin-top:4px;}
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);
  padding:32px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{margin-bottom:20px;}
.field label{
  display:block;
  font-size:14px;
  font-weight:500;
  color:var(--text-1);
  margin-bottom:8px;
}
.field label .req{color:var(--brand);margin-left:2px;}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  padding:13px 14px;
  font-size:15px;
  color:var(--text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input{height:48px;}
.field textarea{min-height:120px;resize:vertical;line-height:1.7;}
.field input::placeholder,
.field textarea::placeholder{color:var(--text-3);}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(42,75,155,.12);
}
.check-row{
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin:4px 0 24px;
  font-size:13px;
  color:var(--text-2);
  line-height:1.7;
}
.check-row input{
  width:18px;height:18px;
  margin-top:3px;
  accent-color:var(--brand);
  flex-shrink:0;
}
.check-row a{text-decoration:underline;text-underline-offset:3px;}
.btn-submit{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  height:50px;
  border:none;
  border-radius:var(--radius-btn);
  background:var(--brand);
  color:#fff;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-submit:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-submit:active{transform:translateY(0);box-shadow:none;}
.form-hint{
  margin-top:14px;
  font-size:12px;
  color:var(--text-3);
  text-align:center;
}
@media (max-width:991px){
  .form-wrap{grid-template-columns:1fr;gap:34px;}
  .form-card{padding:24px;}
}
@media (max-width:575px){
  .form-row{grid-template-columns:1fr;gap:0;}
}

/* ---------- faq ---------- */
.faq-list{max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 0;
  font-size:17px;
  font-weight:600;
  color:var(--text-1);
  cursor:pointer;
  list-style:none;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-icon{
  position:relative;
  flex-shrink:0;
  width:22px;height:22px;
  border-radius:50%;
  border:1px solid var(--brand-100);
  background:var(--brand-050);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  background:var(--brand);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.faq-icon::before{width:10px;height:1.6px;}
.faq-icon::after{width:1.6px;height:10px;}
.faq-item[open] .faq-icon::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg);}
.faq-item[open] summary{color:var(--brand);}
.faq-body{
  padding:0 16px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  background:var(--bg-alt);
  border-radius:12px;
  padding-top:18px;
  margin-bottom:18px;
}
.faq-body p + p{margin-top:12px;}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;
  overflow:hidden;
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  padding:72px 0;
}
.cta-block::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-80px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(192,138,78,.16),rgba(42,75,155,.06) 60%,transparent 70%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.2vw,30px);font-weight:700;line-height:1.4;}
.cta-inner p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
@media (max-width:767px){
  .cta-block{padding:52px 0;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn-brand,
  .cta-actions .btn-ghost{width:100%;}
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  color:var(--text-2);
  max-width:340px;
  line-height:1.85;
}
.footer-contact{
  margin-top:16px;
  font-size:13px;
  color:var(--text-2);
  line-height:2;
}
.footer-platforms{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.footer-platforms span{
  font-size:12px;
  color:var(--text-2);
  border:1px solid var(--line);
  background:#fff;
  border-radius:999px;
  padding:4px 12px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-1);
  letter-spacing:.04em;
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a,
.footer-col span{
  font-size:14px;
  color:var(--text-2);
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  font-size:13px;
  color:var(--text-3);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .site-footer{padding-top:48px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}