/* roulang page: index */
:root{
  --brand:#14456F;
  --brand-deep:#0E3352;
  --brand-light:#E8EFF6;
  --brand-tint:#F3F7FB;
  --copper:#C07A2C;
  --celadon:#2F7D6E;
  --page:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --ink:#16202B;
  --ink-2:#5A6675;
  --ink-3:#8B96A3;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,69,111,.06);
  --sh-2:0 8px 24px rgba(20,69,111,.10);
  --sh-bar:0 -6px 20px rgba(20,69,111,.10);
  --gap:24px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-bottom:96px;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease;}
a:hover{color:var(--brand-deep);}
h1,h2,h3,h4{margin:0 0 16px;line-height:1.35;font-weight:700;color:var(--ink);letter-spacing:0;}
h1{font-size:40px;}
h2{font-size:28px;}
h3{font-size:20px;line-height:1.45;}
p{margin:0 0 16px;color:var(--ink-2);}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* ---------- 布局容器 ---------- */
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container{max-width:1280px;}}

.section{padding:80px 0;}
.section-tint{background:var(--brand-tint);}
.section-white{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--copper);
  letter-spacing:.08em;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--copper);border-radius:2px;}
.section-head h2{margin-bottom:14px;}
.section-sub{font-size:16px;color:var(--ink-2);margin:0;}

/* ---------- 按钮体系 ---------- */
.btn-brand,.btn-ghost,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  line-height:1.2;border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-brand{background:var(--brand);color:#fff;border-color:var(--brand);}
.btn-brand:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-deep);transform:translateY(-1px);}
.btn-soft{background:var(--brand-light);color:var(--brand);border-color:transparent;}
.btn-soft:hover{background:#dbe7f2;color:var(--brand-deep);}
.btn-link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.btn-link-arrow i{font-size:12px;transition:transform .2s ease;}
.btn-link-arrow:hover i{transform:translateX(3px);}
.btn-sm{padding:9px 18px;font-size:14px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 1px 3px rgba(20,69,111,.05);
}
.nav-bar{display:flex;align-items:center;gap:20px;height:78px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 38px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#fff;font-size:16px;
  box-shadow:0 4px 12px rgba(20,69,111,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand-text small{font-size:11px;color:var(--ink-3);margin-top:2px;letter-spacing:.02em;}

.nav-cards{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-card{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:9px 12px;border-radius:10px;
  font-size:14px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;transition:background-color .2s ease,color .2s ease;
}
.nav-card i{font-size:12px;color:var(--ink-3);transition:color .2s ease;}
.nav-card:hover{background:var(--brand-light);color:var(--brand);}
.nav-card:hover i{color:var(--brand);}
.nav-card.active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.nav-card.active::before{
  content:"";position:absolute;left:0;top:18%;width:3px;height:64%;
  background:var(--brand);border-radius:0 3px 3px 0;
}
.nav-card.active i{color:var(--brand);}

.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:11px;
  border:1px solid var(--line);background:#fff;color:var(--brand);font-size:17px;
  display:flex;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--brand-light);}

.offcanvas{background:#fff;}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px;}
.offcanvas-title{font-size:16px;font-weight:700;color:var(--ink);}
.offcanvas-body{padding:18px 22px 24px;}
.drawer-card{
  display:flex;align-items:center;gap:12px;
  padding:14px 16px;margin-bottom:10px;border-radius:12px;
  background:var(--brand-tint);border:1px solid var(--line);
  font-size:15px;font-weight:600;color:var(--ink);
}
.drawer-card i{width:18px;color:var(--brand);}
.drawer-card.active{background:var(--brand-light);color:var(--brand);border-color:#cddced;}
.drawer-cta{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.drawer-cta .btn-brand,.drawer-cta .btn-ghost{width:100%;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-tint);}
.hero-media{
  position:absolute;inset:0;
  background-image:
    linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.9) 42%,rgba(255,255,255,.42) 100%),
    linear-gradient(rgba(20,69,111,.10),rgba(20,69,111,.10)),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover,cover,cover;
  background-position:center,center,center right;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;
  min-height:560px;padding-top:64px;padding-bottom:64px;
}
.hero h1{font-size:40px;margin-bottom:16px;}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-2);max-width:560px;margin:0 0 32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.hero-badges li{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.82);border:1px solid var(--line);
  font-size:12px;color:var(--ink-2);
}
.hero-badges i{color:var(--celadon);font-size:12px;}

.hero-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:0 16px 40px rgba(20,69,111,.13);
  padding:26px;
  position:relative;overflow:hidden;
}
.hero-panel::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:180px;height:180px;
  border:1px dashed rgba(20,69,111,.10);border-radius:50%;
}
.panel-head{
  display:flex;align-items:center;gap:9px;
  font-size:14px;font-weight:700;color:var(--brand);
  padding-bottom:14px;margin-bottom:6px;border-bottom:1px solid var(--line);
}
.panel-head .dot{width:8px;height:8px;border-radius:50%;background:var(--celadon);box-shadow:0 0 0 4px rgba(47,125,110,.14);}
.panel-list li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 0;border-bottom:1px dashed var(--line);
  font-size:14px;color:var(--ink-2);
}
.panel-list li:last-child{border-bottom:0;}
.panel-list strong{color:var(--brand);font-size:14px;font-weight:700;white-space:nowrap;}
.panel-foot{
  margin-top:14px;padding:12px 14px;border-radius:10px;
  background:var(--brand-tint);font-size:13px;color:var(--ink-2);
}

/* ---------- 卖点三连 ---------- */
.value-card{
  height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:28px;transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.value-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#d6e1ec;}
.value-icon{
  width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);font-size:19px;margin-bottom:18px;
}
.value-card h3{font-size:19px;margin-bottom:10px;}
.value-card p{font-size:14.5px;line-height:1.75;margin-bottom:18px;}

/* ---------- 场景演示 ---------- */
.scene-row{align-items:center;padding:28px 0;}
.scene-row + .scene-row{border-top:1px dashed var(--line);}
.scene-figure{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);}
.scene-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.scene-no{
  position:absolute;left:16px;top:16px;z-index:2;
  display:inline-flex;align-items:center;justify-content:center;
  padding:5px 12px;border-radius:999px;
  background:rgba(14,51,82,.86);color:#fff;font-size:12px;font-weight:700;letter-spacing:.06em;
}
.scene-copy h3{font-size:22px;margin-bottom:12px;}
.scene-copy p{font-size:15px;line-height:1.8;margin-bottom:16px;}
.scene-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--ink-2);padding:5px 0;
}
.scene-list i{color:var(--copper);font-size:13px;margin-top:6px;}

/* ---------- 数据条 ---------- */
.stats-band{background:var(--brand-deep);color:#fff;padding:56px 0;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.stat{padding:6px 4px;position:relative;}
.stat + .stat::before{
  content:"";position:absolute;left:-14px;top:12%;height:76%;width:1px;background:rgba(255,255,255,.14);
}
.stat .num{display:flex;align-items:baseline;gap:5px;margin-bottom:8px;}
.stat .num strong{font-size:38px;font-weight:700;color:#fff;line-height:1;letter-spacing:-.01em;}
.stat .num span{font-size:14px;color:var(--copper);font-weight:600;}
.stat p{margin:0;font-size:13.5px;color:#C7D6E4;line-height:1.65;}

/* ---------- 评价卡 ---------- */
.quote-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px;transition:box-shadow .25s ease,transform .25s ease;
}
.quote-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.quote-card .qi{color:var(--copper);font-size:20px;margin-bottom:14px;}
.quote-card blockquote{margin:0 0 18px;font-size:15px;line-height:1.85;color:var(--ink-2);}
.quote-meta{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line);}
.quote-avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 40px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.quote-meta strong{display:block;font-size:14px;color:var(--ink);}
.quote-meta span{display:block;font-size:12px;color:var(--ink-3);}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flow-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s ease;
}
.flow-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.flow-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;margin-bottom:16px;
  background:var(--brand-light);color:var(--brand);font-size:13px;font-weight:700;
}
.flow-card h3{font-size:17px;margin-bottom:8px;}
.flow-card p{font-size:14px;line-height:1.75;margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-accordion .accordion-item{
  border:0;background:#fff;border-radius:8px;margin-bottom:12px;overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-accordion .accordion-button{
  background:#fff;color:var(--ink);font-size:16px;font-weight:600;
  padding:20px 24px 20px 22px;border-left:3px solid transparent;
  box-shadow:none;width:100%;
}
.faq-accordion .accordion-button:hover{background:var(--brand-tint);}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand);background:#fff;border-left-color:var(--brand);
}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-accordion .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:auto;height:auto;font-size:12px;color:var(--brand);
  transition:transform .25s ease;margin-left:auto;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.faq-accordion .accordion-body{
  padding:4px 24px 22px 22px;font-size:14.5px;line-height:1.85;color:var(--ink-2);
  border-left:3px solid var(--brand-light);
}

/* ---------- 最新信息 ---------- */
.post-card{
  height:100%;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .25s ease,transform .25s ease;
}
.post-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.post-thumb{position:relative;display:block;overflow:hidden;background:var(--brand-light);}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.02);}
.post-badge{
  position:absolute;left:14px;bottom:14px;
  padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.94);color:var(--brand);
  font-size:12px;font-weight:600;
}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-title{font-size:17px;line-height:1.5;margin-bottom:10px;}
.post-title a{
  color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
}
.post-title a:hover{color:var(--brand);}
.post-excerpt{
  font-size:14px;line-height:1.75;color:var(--ink-2);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-3);
}
.post-meta .read-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);font-size:13px;}
.post-meta .read-more i{font-size:11px;transition:transform .2s ease;}
.post-meta .read-more:hover i{transform:translateX(3px);}

.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;text-align:center;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:32px;
}
.empty-state i{font-size:26px;color:var(--ink-3);}
.empty-state p{margin:0;font-size:14px;color:var(--ink-3);}

/* ---------- CTA 卡 ---------- */
.cta-card{
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#fff;border-radius:18px;padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 18px 40px rgba(14,51,82,.22);
  position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border:1px dashed rgba(255,255,255,.16);border-radius:50%;
}
.cta-card h2{color:#fff;font-size:26px;margin-bottom:10px;position:relative;}
.cta-card p{color:#C7D6E4;font-size:15px;margin:0;max-width:620px;position:relative;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;position:relative;}
.cta-card .btn-brand{background:#fff;color:var(--brand);border-color:#fff;}
.cta-card .btn-brand:hover{background:var(--brand-light);color:var(--brand-deep);border-color:var(--brand-light);}
.cta-card .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.cta-card .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- 底部转化条 ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:#fff;box-shadow:var(--sh-bar);
  border-top:1px solid var(--line);
}
.sticky-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding-top:10px;padding-bottom:10px;
}
.sticky-text{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-2);}
.sticky-text i{color:var(--copper);}
.sticky-actions{display:flex;gap:10px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#C7D6E4;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.02em;}
.site-footer p{color:#9FB4C9;font-size:14px;line-height:1.8;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:none;}
.footer-brand strong{color:#fff;font-size:16px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:#C7D6E4;font-size:14px;}
.footer-links a:hover{color:var(--copper);}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:#C7D6E4;}
.footer-contact i{color:var(--copper);margin-top:5px;}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#8FA6BC;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-card{padding:8px 10px;font-size:13px;}
}
@media (max-width:991px){
  .section{padding:56px 0;}
  h1,.hero h1{font-size:30px;}
  h2{font-size:23px;}
  .hero-inner{grid-template-columns:1fr;gap:32px;min-height:auto;padding-top:44px;padding-bottom:48px;}
  .hero-media{background-image:
    linear-gradient(180deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.86) 55%,rgba(255,255,255,.7) 100%),
    linear-gradient(rgba(20,69,111,.08),rgba(20,69,111,.08)),
    url('/assets/images/backpic/back-1.webp');}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .stat + .stat::before{display:none;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:34px 28px;}
  .scene-row{padding:24px 0;}
  .scene-row + .scene-row{border-top:0;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:15px;padding-bottom:104px;}
  h1,.hero h1{font-size:26px;}
  h2{font-size:21px;}
  h3{font-size:18px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .hero-sub{font-size:15.5px;margin-bottom:26px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
  .stats-grid{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-card{padding:28px 22px;border-radius:14px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%;}
  .sticky-text{display:none;}
  .sticky-actions{width:100%;}
  .sticky-actions .btn-brand,.sticky-actions .btn-ghost{flex:1 1 0;}
  .value-card,.quote-card,.flow-card,.hero-panel{padding:22px;}
  .post-body{padding:18px 20px 20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --navy:#14456F;
  --navy-deep:#0E3352;
  --navy-soft:#E8EFF6;
  --navy-tint:#F3F7FB;
  --copper:#C07A2C;
  --jade:#2F7D6E;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --ink:#16202B;
  --ink-2:#5A6675;
  --ink-3:#8B96A3;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,69,111,.06);
  --sh-2:0 8px 24px rgba(20,69,111,.10);
  --sh-bar:0 -6px 18px rgba(20,69,111,.08);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  color:var(--ink);
  background:var(--bg);
  padding-bottom:96px;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--navy);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--navy-deep);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:0;}
p{margin:0;}
button{font:inherit;}
:focus-visible{outline:2px solid var(--navy);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){
  .container{max-width:1280px;}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(20,69,111,.05);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:76px;
  padding:10px 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--navy-deep);
  font-weight:700;
  font-size:18px;
}
.brand:hover{color:var(--navy);}
.brand-mark{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--navy) 0%,var(--navy-deep) 100%);
  color:#fff;font-size:16px;
  box-shadow:0 6px 14px rgba(20,69,111,.22);
}
.brand-text{white-space:nowrap;}

.nav-cards{
  flex:1;
  align-items:center;
  gap:8px;
  background:var(--navy-tint);
  border:1px solid var(--line);
  border-radius:16px;
  padding:6px;
  margin:0 4px;
}
.nav-card{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:9px 13px;
  border-radius:10px;
  font-size:14px;
  font-weight:500;
  color:var(--ink-2);
  white-space:nowrap;
  border-left:3px solid transparent;
  transition:all .2s ease;
}
.nav-card i{font-size:13px;color:var(--ink-3);transition:color .2s ease;}
.nav-card:hover{
  background:var(--navy-soft);
  color:var(--navy);
}
.nav-card:hover i{color:var(--navy);}
.nav-card.active{
  background:var(--navy-soft);
  color:var(--navy);
  font-weight:600;
  border-left-color:var(--navy);
}
.nav-card.active i{color:var(--copper);}

.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 15px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
  transition:all .2s ease;
}
.btn-ghost:hover{border-color:var(--navy);color:var(--navy);background:var(--navy-tint);}
.btn-solid{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 18px;
  border-radius:var(--r-btn);
  background:var(--navy);
  color:#fff;
  font-size:14px;
  font-weight:600;
  border:1px solid var(--navy);
  transition:all .2s ease;
}
.btn-solid:hover{background:var(--navy-deep);border-color:var(--navy-deep);color:#fff;transform:translateY(-1px);}

.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:11px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--navy);
  align-items:center;justify-content:center;
}
.mobile-panel{
  border-top:1px solid var(--line);
  padding:14px 0 18px;
}
.mobile-panel .nav-card{
  display:flex;
  width:100%;
  padding:12px 14px;
  margin-bottom:8px;
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid transparent;
}
.mobile-panel .nav-card.active{
  background:var(--navy-soft);
  border-color:var(--navy-soft);
  border-left-color:var(--navy);
}
.mobile-panel .panel-cta{
  display:flex;gap:10px;margin-top:12px;
}
.mobile-panel .panel-cta .btn-solid,
.mobile-panel .panel-cta .btn-ghost{flex:1;justify-content:center;}

/* ============ 内页头部 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(14,51,82,.92) 0%,rgba(20,69,111,.86) 58%,rgba(20,69,111,.72) 100%);
}
.page-hero-inner{
  position:relative;
  z-index:2;
  padding:44px 0 46px;
  max-width:860px;
}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;
  color:#C7D6E4;
  margin-bottom:18px;
}
.breadcrumb-line a{color:#C7D6E4;}
.breadcrumb-line a:hover{color:#fff;}
.breadcrumb-line .sep{opacity:.55;}
.breadcrumb-line .current{color:#fff;font-weight:600;}

.page-hero h1{
  font-size:36px;
  line-height:1.35;
  color:#fff;
  margin-bottom:16px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;
  color:#D6E2EE;
}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--navy-soft);
  color:var(--navy);
}
.badge-soft.on-dark{
  background:rgba(192,122,44,.22);
  color:#F2C88A;
  border:1px solid rgba(242,200,138,.35);
}
.badge-soft.copper{
  background:rgba(192,122,44,.12);
  color:#9A5F1C;
}
.meta-row .dot{opacity:.5;}

/* ============ 正文布局 ============ */
.article-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:28px;
  align-items:start;
  padding:40px 0 8px;
}
.panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:36px 40px;
}
.article-body{
  max-width:800px;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  word-break:break-word;
  overflow-wrap:anywhere;
}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;
  font-size:24px;
  line-height:1.4;
  margin:38px 0 16px;
  padding-left:14px;
  color:var(--navy-deep);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.16em;bottom:.16em;
  width:3px;
  border-radius:2px;
  background:var(--navy);
}
.article-body h3{
  font-size:19px;
  margin:26px 0 12px;
  color:var(--ink);
  font-weight:700;
}
.article-body a{color:var(--navy);border-bottom:1px solid rgba(20,69,111,.3);}
.article-body a:hover{border-bottom-color:var(--navy);}
.article-body ul,
.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul{list-style:none;padding-left:0;}
.article-body ul li{
  position:relative;
  padding-left:18px;
  margin-bottom:8px;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--copper);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:8px;}
.article-body blockquote{
  margin:22px 0;
  padding:16px 20px;
  background:var(--navy-tint);
  border-left:3px solid var(--navy);
  border-radius:0 10px 10px 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--r-img);
  margin:20px auto;
  box-shadow:var(--sh-1);
}
.article-body figure{margin:22px 0;}
.article-body figcaption{
  text-align:center;
  font-size:13px;
  color:var(--ink-3);
  margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:22px 0;
  font-size:15px;
}
.article-body th{
  background:var(--navy-soft);
  color:var(--navy-deep);
  font-weight:600;
  text-align:left;
}
.article-body th,
.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;
}
.article-body hr{
  border:0;
  border-top:1px dashed var(--line);
  margin:28px 0;
}

.not-found{
  text-align:center;
  padding:36px 12px 40px;
}
.not-found .icon{
  width:64px;height:64px;
  margin:0 auto 18px;
  border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--navy-tint);
  color:var(--navy);
  font-size:24px;
}
.not-found h2{font-size:20px;margin-bottom:10px;}
.not-found p{color:var(--ink-2);font-size:15px;margin-bottom:22px;}

/* ============ 标签 / 翻页 / 相关 ============ */
.section-block{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:26px 32px;
  margin-top:24px;
}
.block-title{
  font-size:17px;
  color:var(--navy-deep);
  margin-bottom:16px;
  display:flex;align-items:center;gap:9px;
}
.block-title i{color:var(--copper);font-size:14px;}

.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--navy-tint);
  border:1px solid var(--line);
  color:var(--navy);
  font-size:13px;
  transition:all .2s ease;
}
.tag:hover{background:var(--navy-soft);border-color:var(--navy-soft);transform:translateY(-1px);}

.post-nav{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.post-nav-card{
  display:block;
  padding:18px 20px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  transition:all .2s ease;
}
.post-nav-card:hover{
  border-color:var(--navy-soft);
  box-shadow:var(--sh-2);
  transform:translateY(-3px);
}
.post-nav-card .label{
  font-size:12px;
  color:var(--ink-3);
  display:flex;align-items:center;gap:6px;
  margin-bottom:8px;
}
.post-nav-card .title{
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-nav-card:hover .title{color:var(--navy);}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--navy);
  margin-top:16px;
}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(3px);}

.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card-post{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:all .25s ease;
  height:100%;
}
.card-post:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.card-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--navy-tint);
}
.card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease;
}
.card-post:hover .card-media img{transform:scale(1.02);}
.card-media .badge-soft{
  position:absolute;
  left:12px;bottom:12px;
  background:rgba(255,255,255,.94);
  color:var(--navy);
  box-shadow:var(--sh-1);
}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.card-body h3{
  font-size:16px;
  line-height:1.5;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-post:hover .card-body h3{color:var(--navy);}
.card-body p{
  font-size:14px;
  color:var(--ink-2);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.card-foot{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  font-size:12px;
  color:var(--ink-3);
  border-top:1px dashed var(--line);
  padding-top:12px;
}
.card-foot .go{color:var(--navy);font-weight:600;display:inline-flex;align-items:center;gap:5px;}
.card-post:hover .card-foot .go i{transform:translateX(3px);}
.card-foot .go i{transition:transform .2s ease;}

/* ============ 侧栏 ============ */
.side-col{display:flex;flex-direction:column;gap:22px;position:sticky;top:96px;}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:22px 22px 24px;
}
.side-card h4{
  font-size:15px;
  color:var(--navy-deep);
  margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card h4 i{color:var(--copper);font-size:13px;}
.toc-list li{margin-bottom:4px;}
.toc-list a{
  display:block;
  font-size:14px;
  color:var(--ink-2);
  padding:7px 10px;
  border-left:3px solid transparent;
  border-radius:0 8px 8px 0;
  transition:all .2s ease;
  line-height:1.55;
}
.toc-list a:hover,
.toc-list a.active{
  background:var(--navy-tint);
  border-left-color:var(--navy);
  color:var(--navy);
}
.toc-empty{font-size:13px;color:var(--ink-3);line-height:1.7;}
.side-links li{border-bottom:1px dashed var(--line);}
.side-links li:last-child{border-bottom:0;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;
  gap:8px;
  padding:11px 0;
  font-size:14px;
  color:var(--ink-2);
  transition:color .2s ease;
}
.side-links a i{font-size:11px;color:var(--ink-3);transition:all .2s ease;}
.side-links a:hover{color:var(--navy);}
.side-links a:hover i{color:var(--copper);transform:translateX(3px);}
.side-cta{
  background:linear-gradient(150deg,var(--navy) 0%,var(--navy-deep) 100%);
  color:#fff;
  border:0;
}
.side-cta h4{color:#fff;}
.side-cta h4 i{color:#F2C88A;}
.side-cta p{font-size:13px;color:#C7D6E4;line-height:1.75;margin-bottom:16px;}
.side-cta .btn-solid{
  width:100%;justify-content:center;
  background:#fff;color:var(--navy-deep);border-color:#fff;
}
.side-cta .btn-solid:hover{background:#F2C88A;border-color:#F2C88A;color:var(--navy-deep);}

/* ============ 底部转化条 ============ */
.sticky-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1040;
  background:#fff;
  box-shadow:var(--sh-bar);
  border-top:1px solid var(--line);
}
.sticky-bar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:64px;
  padding-top:10px;
  padding-bottom:10px;
}
.sticky-text{
  font-size:14px;
  color:var(--ink-2);
  display:flex;align-items:center;gap:9px;
}
.sticky-text i{color:var(--copper);}
.sticky-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--navy-deep);
  color:#C7D6E4;
  margin-top:64px;
  padding-top:56px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  margin-bottom:16px;
  color:#fff;
  font-size:17px;
}
.footer-brand .brand-mark{
  background:rgba(255,255,255,.12);
  box-shadow:none;
  color:#F2C88A;
}
.site-footer p{font-size:14px;line-height:1.85;color:#A9BDD0;}
.site-footer h4{
  color:#fff;
  font-size:15px;
  margin-bottom:18px;
}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:#C7D6E4;font-size:14px;}
.footer-links a:hover{color:#F2C88A;}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;
  margin-bottom:12px;
  color:#C7D6E4;
}
.footer-contact i{color:#F2C88A;margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 22px;
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;
  font-size:12px;
  color:#8FA7BE;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-card{padding:8px 10px;font-size:13px;}
  .brand{font-size:17px;}
}
@media (max-width:991px){
  .nav-cards{display:none;}
  .header-actions{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .article-shell{grid-template-columns:minmax(0,1fr);gap:24px;padding-top:32px;}
  .side-col{position:static;top:auto;}
  .panel{padding:28px 24px;}
  .page-hero-inner{padding:36px 0 38px;}
  .page-hero h1{font-size:28px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:17px;}
  .sticky-text{display:none;}
  .sticky-bar-inner{justify-content:center;}
  .sticky-actions{width:100%;}
  .sticky-actions .btn-solid,
  .sticky-actions .btn-ghost{flex:1;justify-content:center;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
  .brand{font-size:16px;}
  .brand-text{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .page-hero h1{font-size:23px;}
  .page-hero-inner{padding:28px 0 30px;}
  .panel{padding:22px 18px;}
  .section-block{padding:22px 18px;}
  .article-body{font-size:15.5px;line-height:1.85;}
  .post-nav{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --navy:#14456F;
  --navy-dark:#0E3352;
  --navy-light:#E8EFF6;
  --navy-pale:#F3F7FB;
  --copper:#C07A2C;
  --jade:#2F7D6E;
  --page:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --text:#16202B;
  --text-2:#5A6675;
  --text-3:#8B96A3;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,69,111,.06);
  --sh-2:0 8px 24px rgba(20,69,111,.10);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-bottom:84px;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--page);
  letter-spacing:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--navy-dark)}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--navy);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:575px){.container{padding:0 16px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(20,69,111,.06)}
.header-inner{display:flex;align-items:center;gap:18px;height:76px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:16px}
.brand-text{font-size:18px;font-weight:700;color:var(--navy-dark);white-space:nowrap}
.brand-text:hover{color:var(--navy)}
.nav-cards{align-items:center;gap:6px;padding:6px;background:var(--navy-pale);border:1px solid var(--line);border-radius:12px;margin-left:auto}
.nav-card{position:relative;display:flex;align-items:center;gap:7px;padding:8px 12px;border-radius:10px;font-size:14px;color:var(--text-2);white-space:nowrap;transition:background .2s ease,color .2s ease,box-shadow .2s ease}
.nav-card i{font-size:13px;color:var(--text-3);transition:color .2s ease}
.nav-card:hover{background:#fff;color:var(--navy);box-shadow:var(--sh-1)}
.nav-card:hover i{color:var(--navy)}
.nav-card.active{background:var(--navy-light);color:var(--navy);font-weight:600}
.nav-card.active i{color:var(--navy)}
.nav-card.active::before{content:"";position:absolute;left:2px;top:9px;bottom:9px;width:3px;border-radius:2px;background:var(--navy)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{width:42px;height:42px;border-radius:10px;border:1px solid var(--line);color:var(--navy);display:grid;place-items:center;background:#fff;transition:background .2s ease}
.nav-toggle:hover{background:var(--navy-pale)}
.mobile-nav{width:320px;background:#fff}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:700;color:var(--navy-dark)}
.mobile-nav .offcanvas-body{padding:16px 20px 24px;display:flex;flex-direction:column;gap:8px}
.mobile-nav .nav-card{padding:12px 14px;background:var(--navy-pale);border:1px solid var(--line);border-radius:10px;font-size:15px}
.mobile-nav .nav-card.active{background:var(--navy-light);border-color:#CFE0EF}
@media (max-width:991px){
  .header-inner{height:68px;gap:12px}
  .brand-text{font-size:16px}
}

/* ---------- buttons ---------- */
.btn-main,.btn-ghost,.btn-hero-ghost,.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-main{background:var(--navy);color:#fff;box-shadow:0 1px 2px rgba(20,69,111,.18)}
.btn-main:hover{background:var(--navy-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(20,69,111,.20)}
.btn-ghost{background:#fff;color:var(--navy);border:1px solid var(--navy)}
.btn-ghost:hover{background:var(--navy-light);color:var(--navy-dark)}
.btn-hero-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.5)}
.btn-hero-ghost:hover{background:rgba(255,255,255,.16);color:#fff}
.btn-ghost-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--navy);padding:0;background:none}
.btn-arrow i{transition:transform .2s ease}
.btn-arrow:hover i{transform:translateX(3px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--navy-dark)}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(14,51,82,.95) 0%,rgba(14,51,82,.80) 52%,rgba(14,51,82,.56) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1px);
  background-size:26px 26px;opacity:.45;
}
.cat-hero .container{position:relative;z-index:1;min-height:320px;padding-top:56px;padding-bottom:56px;display:flex;flex-direction:column;justify-content:center}
.crumb{font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px}
.crumb a{color:rgba(255,255,255,.88)}
.crumb a:hover{color:#fff}
.crumb .sep{margin:0 8px;color:rgba(255,255,255,.42)}
.crumb .cur{color:#E7BE8B}
.cat-hero h1{font-size:40px;color:#fff;max-width:820px}
.cat-hero .lead{margin-top:16px;max-width:660px;font-size:17px;color:#D6E3EF}
.cat-hero .hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:991px){
  .cat-hero .container{min-height:280px;padding-top:44px;padding-bottom:44px}
  .cat-hero h1{font-size:30px}
}
@media (max-width:575px){
  .cat-hero h1{font-size:28px}
  .cat-hero .lead{font-size:15px}
  .cat-hero .hero-actions{gap:10px}
  .cat-hero .hero-actions .btn-hero-ghost{width:100%}
}

/* ---------- sections ---------- */
.section{padding:80px 0}
.section-tight{padding:56px 0}
.section-pale{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:38px}
.sec-head h2{font-size:28px;color:var(--navy-dark)}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:16px}
.sec-tag{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--copper);margin-bottom:12px;text-transform:uppercase}
.sec-tag::before{content:"";width:22px;height:2px;background:var(--copper);border-radius:2px}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-tight{padding:40px 0}
  .sec-head h2{font-size:22px}
  .sec-head{margin-bottom:26px}
}

/* ---------- stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.stat-num{font-size:32px;font-weight:700;color:var(--navy);line-height:1.2}
.stat-num small{font-size:15px;font-weight:600;color:var(--copper);margin-left:4px}
.stat-label{margin-top:8px;font-size:14px;color:var(--text-2)}
@media (max-width:991px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575px){.stat-grid{grid-template-columns:1fr;gap:16px}}

/* ---------- capability cards ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.cap-card{
  display:grid;grid-template-columns:170px 1fr;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.cap-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.cap-media{position:relative;overflow:hidden;background:var(--navy-pale);min-height:100%}
.cap-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.cap-card:hover .cap-media img{transform:scale(1.04)}
.cap-body{padding:22px 24px}
.cap-index{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:26px;padding:0 9px;border-radius:999px;background:var(--navy-pale);border:1px solid var(--line);color:var(--copper);font-size:12px;font-weight:700;margin-bottom:10px}
.cap-body h3{font-size:18px;color:var(--navy-dark)}
.cap-body p{margin-top:8px;font-size:14px;color:var(--text-2)}
.cap-list{margin-top:12px;display:flex;flex-direction:column;gap:6px}
.cap-list li{position:relative;padding-left:20px;font-size:14px;color:var(--text-2)}
.cap-list li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:0;color:var(--jade);font-size:11px}
.cap-link{margin-top:14px;display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--navy)}
.cap-link i{transition:transform .2s ease}
.cap-link:hover i{transform:translateX(3px)}
@media (max-width:991px){.cap-grid{grid-template-columns:1fr}}
@media (max-width:575px){
  .cap-card{grid-template-columns:1fr}
  .cap-media{min-height:172px}
  .cap-body{padding:20px}
}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.flow-num{width:30px;height:30px;border-radius:999px;background:var(--copper);color:#fff;font-size:13px;font-weight:700;display:grid;place-items:center;margin-bottom:14px}
.flow-step h3{font-size:17px;color:var(--navy-dark)}
.flow-step p{margin-top:8px;font-size:14px;color:var(--text-2)}
.flow-note{margin-top:24px;font-size:14px;color:var(--text-2);display:flex;align-items:flex-start;gap:10px;background:var(--navy-pale);border:1px dashed #C9D8E6;border-radius:var(--r-card);padding:16px 20px}
.flow-note i{color:var(--copper);margin-top:5px}
@media (max-width:991px){.flow-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575px){.flow-grid{grid-template-columns:1fr;gap:16px}}

/* ---------- assurance ---------- */
.assure-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.assure-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease}
.assure-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.assure-icon{width:44px;height:44px;border-radius:12px;background:var(--navy-light);color:var(--navy);display:grid;place-items:center;font-size:17px;margin-bottom:16px}
.assure-card h3{font-size:17px;color:var(--navy-dark)}
.assure-card p{margin-top:8px;font-size:14px;color:var(--text-2)}
@media (max-width:991px){.assure-grid{grid-template-columns:1fr}}
@media (min-width:576px) and (max-width:991px){.assure-grid{grid-template-columns:repeat(2,1fr)}}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{position:relative;background:#fff;border-radius:8px;box-shadow:var(--sh-1);overflow:hidden}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background .2s ease}
.faq-item:has(.collapse.show)::before{background:var(--navy)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--navy-dark)}
.faq-q:hover{color:var(--navy)}
.faq-q i{color:var(--text-3);font-size:13px;transition:transform .25s ease,color .2s ease;flex-shrink:0}
.faq-q[aria-expanded="true"] i{transform:rotate(180deg);color:var(--navy)}
.faq-a{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}
@media (max-width:575px){.faq-q{padding:16px 18px;font-size:15px}.faq-a{padding:0 18px 18px;font-size:14px}}

/* ---------- cta ---------- */
.cta-card{
  position:relative;overflow:hidden;
  background:var(--navy-dark);border-radius:var(--r-card);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 12px 30px rgba(14,51,82,.18);
}
.cta-card::after{content:"";position:absolute;right:-50px;top:-60px;width:240px;height:240px;border-radius:50%;border:1px dashed rgba(255,255,255,.16)}
.cta-card::before{content:"";position:absolute;left:-30px;bottom:-70px;width:180px;height:180px;border-radius:50%;border:1px solid rgba(255,255,255,.08)}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{font-size:26px;color:#fff}
.cta-copy p{margin-top:10px;font-size:15px;color:#C7D6E4;max-width:640px}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-shrink:0}
@media (max-width:991px){
  .cta-card{flex-direction:column;align-items:flex-start;padding:30px;gap:22px}
  .cta-copy h2{font-size:22px}
  .cta-actions{width:100%;flex-wrap:wrap}
}
@media (max-width:575px){
  .cta-actions a{flex:1 1 100%}
}

/* ---------- sticky bar ---------- */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:1040;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(20,69,111,.10)}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.sticky-text{font-size:14px;color:var(--text-2);display:flex;align-items:center;gap:10px}
.sticky-text i{color:var(--copper)}
.sticky-actions{display:flex;gap:10px}
@media (max-width:767px){
  .sticky-inner{height:auto;padding:10px 0;flex-direction:column;align-items:stretch;gap:10px}
  .sticky-text{justify-content:center;text-align:center}
  .sticky-actions a{flex:1}
  body{padding-bottom:130px}
}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-dark);color:#C7D6E4;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{color:#fff;font-size:18px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12)}
.site-footer p{font-size:14px;line-height:1.9;color:#A9BDD0}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#C7D6E4;font-size:14px}
.footer-links a:hover{color:#E4B173}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:10px;color:#C7D6E4}
.footer-contact i{color:var(--copper);margin-top:5px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:13px;color:#8FA5B8}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;gap:24px}.site-footer{padding-top:44px}}

/* roulang page: category2 */
:root{
  --navy:#14456F;
  --navy-deep:#0E3352;
  --navy-soft:#E8EFF6;
  --navy-tint:#F3F7FB;
  --copper:#C07A2C;
  --celadon:#2F7D6E;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --ink:#16202B;
  --ink-2:#5A6675;
  --ink-3:#8B96A3;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-card:0 1px 2px rgba(20,69,111,.06);
  --sh-hover:0 8px 24px rgba(20,69,111,.10);
  --container:1200px;
  --sec-y:80px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  padding-bottom:80px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--navy);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--copper);}
h1,h2,h3,h4{color:var(--ink);line-height:1.35;margin:0;font-weight:700;letter-spacing:0;}
h1{font-size:40px;}
h2{font-size:28px;}
h3{font-size:20px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--navy);outline-offset:2px;}
.container{max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
.section{padding:var(--sec-y) 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head .eyebrow{margin-bottom:12px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--ink-2);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--copper);
  background:rgba(192,122,44,.10);
  border-radius:999px;padding:5px 14px;letter-spacing:.5px;
}
.eyebrow.is-navy{color:var(--navy);background:var(--navy-soft);}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;color:var(--navy);
  background:var(--navy-soft);border-radius:999px;padding:4px 12px;
}
.badge-copper{color:var(--copper);background:rgba(192,122,44,.12);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 10px rgba(20,69,111,.05);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:76px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(140deg,var(--navy),var(--navy-deep));
  color:#fff;display:grid;place-items:center;font-size:17px;
}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:var(--ink);line-height:1.2;}
.brand-text em{font-style:normal;font-size:11.5px;font-weight:400;color:var(--ink-3);letter-spacing:.4px;margin-top:2px;}
.nav-cards{
  display:flex;gap:5px;margin-left:auto;
  background:var(--navy-tint);border:1px solid var(--line);
  border-radius:14px;padding:6px;
}
.nav-card{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;border-radius:10px;
  font-size:14px;color:var(--ink-2);white-space:nowrap;transition:all .2s ease;
}
.nav-card i{font-size:12.5px;color:var(--ink-3);transition:color .2s ease;}
.nav-card:hover{background:#fff;color:var(--navy);box-shadow:var(--sh-card);}
.nav-card:hover i{color:var(--copper);}
.nav-card.active{
  position:relative;background:#fff;color:var(--navy);
  font-weight:600;box-shadow:var(--sh-card);padding-left:16px;
}
.nav-card.active i{color:var(--navy);}
.nav-card.active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:0 3px 3px 0;background:var(--navy);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
  background:#fff;color:var(--navy);font-size:17px;display:grid;place-items:center;
}
.nav-toggle:hover{background:var(--navy-soft);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;
  padding:12px 20px;border:1px solid transparent;cursor:pointer;
  transition:all .2s ease;text-align:center;
}
.btn-primary{background:var(--navy);color:#fff;}
.btn-primary:hover{background:var(--navy-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(20,69,111,.22);}
.btn-outline{background:#fff;border-color:var(--navy);color:var(--navy);}
.btn-outline:hover{background:var(--navy-soft);color:var(--navy-deep);border-color:var(--navy);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-2);}
.btn-ghost:hover{background:var(--navy-tint);color:var(--navy);border-color:var(--navy-soft);}
.btn-sm{padding:9px 16px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--navy);
}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover{color:var(--copper);}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 页首 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--navy-deep);
  color:#fff;
  min-height:320px;
  display:flex;align-items:center;
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,51,82,.94) 0%,rgba(20,69,111,.78) 55%,rgba(20,69,111,.52) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:56px 0;width:100%;}
.breadcrumb-line{
  font-size:13px;color:#B9CDDE;margin-bottom:16px;display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.breadcrumb-line a{color:#D6E4F0;}
.breadcrumb-line a:hover{color:var(--copper);}
.breadcrumb-line span.sep{color:rgba(255,255,255,.35);}
.breadcrumb-line .current{color:#fff;font-weight:600;}
.page-hero h1{color:#fff;font-size:40px;margin-bottom:16px;max-width:820px;}
.page-hero .lede{
  font-size:17px;color:#D3E1EC;max-width:660px;margin-bottom:26px;line-height:1.7;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.hero-tags span{
  font-size:12.5px;color:#DCE8F2;background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:5px 13px;
}

/* ---------- 数据条 ---------- */
.stats-wrap{position:relative;z-index:3;margin-top:-56px;}
.stats-bar{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:0 10px 30px rgba(20,69,111,.10);
  display:grid;grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.stat-item{padding:26px 24px;position:relative;}
.stat-item+.stat-item::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:1px;background:var(--line);
}
.stat-num{
  font-size:32px;font-weight:700;color:var(--navy);line-height:1.1;
  display:flex;align-items:baseline;gap:4px;
}
.stat-num em{font-style:normal;font-size:14px;font-weight:600;color:var(--copper);}
.stat-label{font-size:13.5px;color:var(--ink-2);margin-top:8px;}

/* ---------- 图文交替 ---------- */
.alt-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:38px 0;
}
.alt-row+.alt-row{border-top:1px dashed var(--line);}
.alt-row.reverse .alt-media{order:2;}
.alt-media{position:relative;}
.alt-media img{
  width:100%;border-radius:var(--r-img);
  box-shadow:0 12px 30px rgba(20,69,111,.12);
  object-fit:cover;aspect-ratio:16/10;
}
.media-tag{
  position:absolute;left:-10px;top:-10px;
  width:52px;height:52px;border-radius:14px;
  background:var(--copper);color:#fff;font-size:18px;font-weight:700;
  display:grid;place-items:center;box-shadow:0 8px 20px rgba(192,122,44,.32);
}
.alt-body h3{margin-bottom:14px;font-size:22px;}
.alt-body p{color:var(--ink-2);}
.tick-list{margin:18px 0 22px;}
.tick-list li{
  position:relative;padding-left:26px;margin-bottom:10px;
  font-size:15px;color:var(--ink-2);
}
.tick-list li:last-child{margin-bottom:0;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:12px;height:2px;background:var(--copper);border-radius:2px;
}
.tick-list li strong{color:var(--ink);font-weight:600;}

/* ---------- 服务范围双栏 ---------- */
.scope-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:30px 28px;height:100%;
  transition:box-shadow .25s ease,transform .25s ease;
}
.scope-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);}
.scope-card h3{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-size:19px;}
.scope-card h3 i{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-size:14px;background:var(--navy-soft);color:var(--navy);
}
.scope-card.is-copper h3 i{background:rgba(192,122,44,.12);color:var(--copper);}
.scope-list li{
  position:relative;padding-left:20px;margin-bottom:12px;
  font-size:15px;color:var(--ink-2);line-height:1.7;
}
.scope-list li:last-child{margin-bottom:0;}
.scope-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:6px;height:6px;border-radius:50%;background:var(--navy);
}
.scope-card.is-copper .scope-list li::before{background:var(--copper);}

/* ---------- 口岸提示 ---------- */
.notice-strip{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--copper);
  border-radius:var(--r-card);box-shadow:var(--sh-card);
  padding:26px 28px;
}
.notice-strip h3{
  font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:9px;
}
.notice-strip h3 i{color:var(--copper);}
.notice-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--ink-2);
  padding:11px 0;
}
.notice-list li+li{border-top:1px dashed var(--line);}
.notice-list li i{color:var(--navy);font-size:9px;margin-top:9px;flex-shrink:0;}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  border:0;border-radius:8px;overflow:hidden;background:#fff;
  box-shadow:var(--sh-card);margin-bottom:12px;
}
.faq-accordion .accordion-button{
  position:relative;width:100%;text-align:left;
  background:#fff;color:var(--ink);font-weight:600;font-size:17px;
  padding:20px 56px 20px 22px;box-shadow:none;border:0;line-height:1.5;
  transition:background .2s ease,color .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--navy);background:var(--navy-tint);}
.faq-accordion .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--navy);border-radius:0 3px 3px 0;
}
.faq-accordion .accordion-button::after{display:none;}
.faq-accordion .accordion-button .chev{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--ink-3);transition:transform .25s ease,color .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed) .chev{transform:translateY(-50%) rotate(180deg);color:var(--copper);}
.faq-accordion .accordion-button:focus{box-shadow:inset 0 0 0 2px var(--navy-soft);}
.faq-accordion .accordion-body{
  padding:6px 26px 24px 22px;color:var(--ink-2);font-size:15px;line-height:1.85;background:#fff;
}

/* ---------- CTA 卡 ---------- */
.cta-card{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,var(--navy-deep) 0%,var(--navy) 62%,#1B5380 100%);
  border-radius:18px;padding:44px 46px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:0 18px 40px rgba(14,51,82,.22);
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;background:rgba(255,255,255,.05);
}
.cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-copy h2{color:#fff;font-size:27px;margin-bottom:12px;}
.cta-copy p{color:#C7D6E4;font-size:15.5px;margin:0;}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-shrink:0;flex-wrap:wrap;}
.cta-actions .btn-primary{background:var(--copper);}
.cta-actions .btn-primary:hover{background:#A9681F;box-shadow:0 8px 20px rgba(192,122,44,.32);}
.cta-actions .btn-outline{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}

/* ---------- 底部固定转化条 ---------- */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:#fff;box-shadow:0 -6px 18px rgba(20,69,111,.10);
  border-top:1px solid var(--line);
}
.bottom-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;}
.bottom-text{font-size:14.5px;color:var(--ink-2);display:flex;align-items:center;gap:10px;}
.bottom-text i{color:var(--copper);}
.bottom-actions{display:flex;gap:10px;flex-shrink:0;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--navy-deep);color:#C7D6E4;padding:64px 0 0;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-brand strong{color:#fff;font-size:17px;font-weight:700;}
.site-footer p{font-size:14px;line-height:1.85;color:#A9BFD3;margin:0;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600;letter-spacing:.4px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:#C7D6E4;font-size:14px;}
.footer-links a:hover{color:var(--copper);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;margin-bottom:12px;color:#C7D6E4;}
.footer-contact li i{color:var(--copper);font-size:13px;margin-top:5px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 24px;font-size:13px;color:#8FA8BF;
}

/* ---------- 移动端抽屉 ---------- */
.nav-drawer{background:#fff;width:320px;border-left:1px solid var(--line);}
.nav-drawer .offcanvas-header{
  border-bottom:1px solid var(--line);padding:18px 20px;
}
.drawer-title{font-weight:700;color:var(--ink);font-size:16px;}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);display:grid;place-items:center;
}
.drawer-close:hover{background:var(--navy-soft);color:var(--navy);}
.nav-drawer .offcanvas-body{padding:18px 20px;display:flex;flex-direction:column;gap:10px;}
.drawer-card{
  display:flex;align-items:center;gap:11px;
  background:var(--navy-tint);border:1px solid var(--line);border-radius:12px;
  padding:14px 16px;font-size:15px;color:var(--ink-2);font-weight:500;
}
.drawer-card i{color:var(--ink-3);font-size:14px;}
.drawer-card.active{
  background:#fff;color:var(--navy);font-weight:700;
  border-color:var(--navy-soft);border-left:3px solid var(--navy);
}
.drawer-card.active i{color:var(--navy);}
.drawer-cta{margin-top:10px;width:100%;}

/* ---------- 响应式 ---------- */
@media (max-width:1279.98px){
  .nav-card{font-size:13px;padding:8px 10px;gap:5px;}
  .nav-card.active{padding-left:13px;}
}
@media (max-width:1199.98px){
  .header-actions .btn-ghost{display:none;}
}
@media (max-width:991.98px){
  h1{font-size:32px;}
  .page-hero h1{font-size:32px;}
  h2{font-size:24px;}
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  .header-inner{min-height:66px;}
  .nav-cards{display:none;}
  .header-actions{margin-left:auto;}
  .stats-bar{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(3)::before{display:none;}
  .alt-row{grid-template-columns:1fr;gap:28px;padding:28px 0;}
  .alt-row.reverse .alt-media{order:0;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:34px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:15px;}
  h1{font-size:28px;}
  .page-hero h1{font-size:27px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .page-hero{min-height:auto;}
  .page-hero-inner{padding:40px 0;}
  .page-hero .lede{font-size:15.5px;}
  .stats-wrap{margin-top:-32px;}
  .stats-bar{grid-template-columns:1fr;}
  .stat-item+.stat-item::before{
    left:20px;right:20px;top:0;bottom:auto;width:auto;height:1px;
  }
  .stat-item:nth-child(3)::before{display:block;}
  .media-tag{width:44px;height:44px;font-size:16px;left:-6px;top:-6px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .bottom-text{display:none;}
  .bottom-bar-inner{min-height:auto;padding:10px 0;}
  .bottom-actions{width:100%;}
  .bottom-actions .btn{flex:1 1 0;}
  body{padding-bottom:76px;}
}

/* roulang page: category3 */
:root{
  --navy:#14456F;
  --navy-dark:#0E3352;
  --navy-light:#E8EFF6;
  --navy-xlight:#F3F7FB;
  --copper:#C07A2C;
  --copper-light:#FBF2E7;
  --green:#2F7D6E;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --text:#16202B;
  --text-2:#5A6675;
  --text-3:#8B96A3;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(20,69,111,.06);
  --shadow-2:0 8px 24px rgba(20,69,111,.10);
  --shadow-3:0 12px 34px rgba(14,51,82,.16);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  letter-spacing:0;
  padding-bottom:88px;
}
h1,h2,h3,h4,h5{
  margin:0;
  line-height:1.35;
  font-weight:700;
  color:var(--text);
  letter-spacing:0;
}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,opacity .2s ease;}
a:hover{color:var(--navy);}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
@media (min-width:1400px){ .container{max-width:1280px;} }
@media (max-width:575.98px){ .container{padding-left:16px;padding-right:16px;} }

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  padding:12px 22px;
  border:1px solid transparent;
  line-height:1.2;
  transition:all .2s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--navy);outline-offset:2px;}
.btn-primary-c{background:var(--navy);color:#fff;border-color:var(--navy);box-shadow:0 1px 2px rgba(20,69,111,.14);}
.btn-primary-c:hover{background:var(--navy-dark);border-color:var(--navy-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary-c:active{transform:translateY(0);}
.btn-outline-c{background:#fff;color:var(--navy);border-color:var(--navy);}
.btn-outline-c:hover{background:var(--navy-light);color:var(--navy-dark);border-color:var(--navy-dark);}
.btn-copper{background:var(--copper);color:#fff;border-color:var(--copper);}
.btn-copper:hover{background:#A96822;border-color:#A96822;color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line);}
.btn-ghost:hover{background:#fff;border-color:var(--navy);color:var(--navy-dark);}
.btn-sm{padding:9px 16px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--navy);font-size:14px;font-weight:600;
}
.link-arrow i{transition:transform .2s ease;font-size:12px;}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 3px rgba(20,69,111,.05);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  min-height:76px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--navy);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;flex:0 0 auto;
  box-shadow:0 4px 12px rgba(20,69,111,.20);
}
.brand-text{font-size:17px;font-weight:700;color:var(--navy-dark);white-space:nowrap;}

.nav-cards{
  display:flex;align-items:center;gap:6px;
  background:var(--navy-xlight);
  border:1px solid var(--line);
  border-radius:14px;
  padding:6px;
  margin-left:auto;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-cards::-webkit-scrollbar{display:none;}
.nav-card{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;border-radius:10px;
  font-size:14px;font-weight:600;color:var(--text-2);
  white-space:nowrap;
  border-left:3px solid transparent;
  transition:all .2s ease;
}
.nav-card i{font-size:13px;color:var(--text-3);transition:color .2s ease;}
.nav-card:hover{background:#fff;color:var(--navy);box-shadow:var(--shadow-1);}
.nav-card:hover i{color:var(--copper);}
.nav-card.active{
  background:var(--navy-light);color:var(--navy);
  border-left:3px solid var(--navy);
}
.nav-card.active i{color:var(--navy);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:8px;}
.menu-toggle{
  margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--navy);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.menu-toggle:hover{background:var(--navy-light);}
.mobile-nav{
  border-top:1px solid var(--line);
  background:#fff;
  padding:14px 0 20px;
}
.mobile-nav .m-card{
  display:flex;align-items:center;gap:10px;
  padding:13px 16px;border-radius:10px;
  border:1px solid var(--line);
  background:var(--navy-xlight);
  font-weight:600;font-size:15px;color:var(--text-2);
  margin-bottom:10px;
}
.mobile-nav .m-card i{color:var(--text-3);width:18px;text-align:center;}
.mobile-nav .m-card.active{background:var(--navy-light);color:var(--navy);border-left:3px solid var(--navy);}
.mobile-nav .m-card.active i{color:var(--navy);}
.mobile-nav .m-actions{display:grid;gap:10px;margin-top:14px;}
.mobile-nav .m-actions .btn{width:100%;}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:52px 0 48px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(14,51,82,.92) 0%,rgba(20,69,111,.82) 52%,rgba(20,69,111,.62) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-size:13px;color:#C7D6E4;margin-bottom:18px;
}
.crumb a{color:#C7D6E4;}
.crumb a:hover{color:#fff;}
.crumb span.sep{opacity:.6;}
.crumb .now{color:#fff;}
.page-hero h1{
  color:#fff;font-size:40px;max-width:760px;
  margin-bottom:16px;
}
.page-hero .hero-sub{
  font-size:16px;color:#D6E3EF;max-width:620px;line-height:1.8;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);
  font-size:12px;color:#EAF2F9;
}
.hero-tag i{color:var(--copper);font-size:11px;}
.hero-cta{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-cta .btn-outline-c{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.hero-cta .btn-outline-c:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section-alt{background:#fff;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--copper);text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--copper);display:inline-block;}
.section-head h2{font-size:28px;margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:15.5px;}

/* ---------- 时间轴 ---------- */
.timeline{margin-top:8px;}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:26px;
  padding-bottom:26px;
}
.tl-item::before{
  content:"";position:absolute;left:31px;top:70px;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--navy-light),rgba(227,232,239,.9));
}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-marker{display:flex;justify-content:flex-start;}
.tl-num{
  width:64px;height:64px;border-radius:18px;
  background:var(--navy);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;
  box-shadow:0 6px 18px rgba(20,69,111,.20);
  position:relative;z-index:1;
}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 26px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.tl-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:#D6E2EE;}
.tl-card h3{font-size:20px;margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.tl-card h3 .tag{
  font-size:12px;font-weight:600;color:var(--copper);
  background:var(--copper-light);border-radius:999px;padding:3px 10px;
}
.tl-card p{color:var(--text-2);font-size:15px;}
.tl-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tl-points li{
  font-size:13px;color:var(--navy);
  background:var(--navy-xlight);
  border:1px solid var(--navy-light);
  border-radius:999px;
  padding:5px 12px;
}

/* ---------- 对照表 ---------- */
.table-shell{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;}
.cmp-table{width:100%;border-collapse:collapse;min-width:760px;}
.cmp-table th{
  background:var(--navy-light);
  color:var(--navy);
  font-size:13.5px;font-weight:700;text-align:left;
  padding:15px 20px;
  border-bottom:1px solid #D8E3EE;
  white-space:nowrap;
}
.cmp-table td{
  padding:17px 20px;
  border-bottom:1px solid var(--line);
  font-size:14.5px;color:var(--text-2);line-height:1.7;
  vertical-align:top;
}
.cmp-table tr:last-child td{border-bottom:none;}
.cmp-table tbody tr:hover{background:var(--navy-xlight);}
.cmp-table td strong{color:var(--text);font-weight:600;}
.badge-soft{
  display:inline-block;
  font-size:12px;font-weight:600;
  border-radius:999px;padding:3px 10px;
  background:var(--navy-light);color:var(--navy);
}
.badge-copper{background:var(--copper-light);color:#9A5F1C;}
.badge-green{background:#E6F2EF;color:var(--green);}
.table-note{
  margin-top:14px;font-size:13px;color:var(--text-3);
}

/* ---------- 图文能力区 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;align-items:center;
}
.split.reverse .split-media{order:2;}
.split-media{position:relative;}
.split-media img{
  width:100%;
  box-shadow:var(--shadow-2);
  border-radius:var(--radius-img);
}
.media-badge{
  position:absolute;left:18px;bottom:18px;
  background:#fff;border-radius:12px;
  padding:10px 16px;
  box-shadow:var(--shadow-2);
  font-size:13px;font-weight:600;color:var(--navy);
  display:flex;align-items:center;gap:8px;
}
.media-badge i{color:var(--copper);}
.split-body h2{font-size:28px;margin-bottom:16px;}
.split-body .lead{color:var(--text-2);margin-bottom:22px;font-size:15.5px;}
.feature-list li{
  display:flex;gap:12px;
  padding:14px 0;
  border-bottom:1px dashed var(--line);
}
.feature-list li:last-child{border-bottom:none;}
.feature-list .fi{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:var(--navy-xlight);color:var(--navy);
  display:flex;align-items:center;justify-content:center;font-size:14px;
}
.feature-list h4{font-size:16px;margin-bottom:4px;}
.feature-list p{font-size:14px;color:var(--text-2);}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.metric{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 22px;
  text-align:center;
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.metric:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.metric .num{
  font-size:32px;font-weight:700;color:var(--navy);
  line-height:1.1;display:flex;align-items:baseline;justify-content:center;gap:4px;
}
.metric .num small{font-size:14px;font-weight:600;color:var(--copper);}
.metric .desc{font-size:13.5px;color:var(--text-2);margin-top:10px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion{
  --bs-accordion-border-width:0;
  --bs-accordion-border-radius:8px;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-btn-icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%235A6675'%3E%3Cpath d='M8 11.6 2.4 6l1.1-1.1L8 9.4l4.5-4.5L13.6 6z'/%3E%3C/svg%3E");
  --bs-accordion-btn-active-icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2314456F'%3E%3Cpath d='M8 11.6 2.4 6l1.1-1.1L8 9.4l4.5-4.5L13.6 6z'/%3E%3C/svg%3E");
}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:8px;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease;
}
.faq-item:hover{box-shadow:var(--shadow-2);}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--text);
  background:#fff;
  padding:18px 56px 18px 22px;
  border-left:3px solid transparent;
  line-height:1.55;
}
.accordion-button:not(.collapsed){
  color:var(--navy);
  background:#fff;
  border-left:3px solid var(--navy);
  box-shadow:none;
}
.accordion-button::after{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:18px;height:18px;background-size:18px;
  transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);}
.accordion-body{
  padding:2px 24px 22px 22px;
  font-size:15px;color:var(--text-2);line-height:1.85;
}

/* ---------- CTA 卡 ---------- */
.cta-card{
  background:linear-gradient(120deg,var(--navy-dark) 0%,var(--navy) 62%,#17527F 100%);
  border-radius:18px;
  padding:44px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  color:#fff;
  box-shadow:var(--shadow-3);
  position:relative;
  overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;
  width:260px;height:260px;border-radius:50%;
  border:1px dashed rgba(255,255,255,.16);
}
.cta-card h2{color:#fff;font-size:26px;margin-bottom:10px;}
.cta-card p{color:#C7D6E4;font-size:15px;max-width:600px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;position:relative;z-index:2;}
.cta-card .btn-outline-c{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.cta-card .btn-outline-c:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.cta-card .btn-copper:hover{background:#fff;color:var(--copper);border-color:#fff;}

/* ---------- 底部固定转化条 ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  height:64px;
  background:#fff;
  box-shadow:0 -6px 20px rgba(14,51,82,.10);
  border-top:1px solid var(--line);
}
.sticky-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.sticky-text{font-size:14.5px;color:var(--text-2);}
.sticky-text strong{color:var(--navy);}
.sticky-actions{display:flex;gap:10px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--navy-dark);
  color:#C7D6E4;
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:none;}
.footer-brand strong{color:#fff;font-size:17px;font-weight:700;}
.site-footer p{font-size:14px;line-height:1.85;color:#9FB4C8;max-width:340px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14px;color:#C7D6E4;}
.footer-links a:hover{color:var(--copper);}
.footer-contact li{
  display:flex;gap:10px;font-size:14px;color:#C7D6E4;margin-bottom:12px;line-height:1.6;
}
.footer-contact i{color:var(--copper);margin-top:4px;width:16px;text-align:center;flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8DA5BC;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-card{padding:8px 11px;font-size:13px;}
  .brand-text{font-size:16px;}
}
@media (max-width:991.98px){
  .section{padding:56px 0;}
  .page-hero{padding:40px 0 40px;}
  .page-hero h1{font-size:32px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split.reverse .split-media{order:0;}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:34px 28px;gap:24px;}
  .cta-actions{width:100%;}
  .sticky-text{display:none;}
  .sticky-inner{justify-content:center;}
  .sticky-actions{width:100%;}
  .sticky-actions .btn{flex:1;}
}
@media (max-width:767.98px){
  body{padding-bottom:96px;}
  .section{padding:48px 0;}
  .page-hero h1{font-size:28px;}
  .section-head h2,.split-body h2{font-size:22px;}
  .tl-item{grid-template-columns:48px minmax(0,1fr);gap:16px;padding-bottom:20px;}
  .tl-item::before{left:23px;top:54px;}
  .tl-num{width:48px;height:48px;border-radius:14px;font-size:15px;}
  .tl-card{padding:20px 18px;}
  .tl-card h3{font-size:18px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .metrics{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-cta .btn{width:100%;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .sticky-actions .btn{padding:11px 12px;font-size:14px;}
  .sticky-bar{height:auto;padding:10px 0;}
  .sticky-inner{height:auto;}
}

/* roulang page: category4 */
:root{
  --navy:#14456F;
  --navy-deep:#0E3352;
  --navy-light:#E8EFF6;
  --navy-tint:#F3F7FB;
  --copper:#C07A2C;
  --green:#2F7D6E;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --text:#16202B;
  --muted:#5A6675;
  --weak:#8B96A3;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-card:0 1px 2px rgba(20,69,111,.06);
  --sh-hover:0 8px 24px rgba(20,69,111,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  color:var(--text);
  background:var(--bg);
  padding-bottom:80px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--navy);text-decoration:none;transition:color .22s ease,background-color .22s ease,transform .22s ease}
a:hover{color:var(--copper)}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:0;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--navy);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:575.98px){.container{padding-left:16px;padding-right:16px}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(20,69,111,.06);
}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:76px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;font-weight:700;font-size:18px;color:var(--navy-deep)}
.brand:hover{color:var(--navy-deep)}
.brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--navy);color:#fff;
  display:grid;place-items:center;font-size:16px;flex-shrink:0;
}
.nav-cards{display:flex;gap:6px;background:var(--navy-tint);padding:6px;border-radius:14px;margin-left:6px}
.nav-card{
  display:flex;align-items:center;gap:8px;padding:9px 13px;border-radius:10px;
  font-size:14px;font-weight:500;color:var(--muted);white-space:nowrap;line-height:1.2;
}
.nav-card i{color:var(--copper);font-size:13px}
.nav-card:hover{background:#fff;color:var(--navy);box-shadow:0 1px 2px rgba(20,69,111,.08)}
.nav-card.active{background:var(--navy-light);color:var(--navy);font-weight:600;box-shadow:inset 3px 0 0 var(--navy)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-main,.btn-ghost,.btn-onhero{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .22s ease;text-align:center;line-height:1.3;
}
.btn-main{background:var(--navy);border-color:var(--navy);color:#fff}
.btn-main:hover{background:var(--navy-deep);border-color:var(--navy-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(20,69,111,.18)}
.btn-ghost{background:#fff;border-color:var(--navy);color:var(--navy)}
.btn-ghost:hover{background:var(--navy-light);color:var(--navy);transform:translateY(-1px)}
.btn-onhero{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.55);color:#fff}
.btn-onhero:hover{background:#fff;color:var(--navy-deep);border-color:#fff;transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--navy)}
.btn-text i{transition:transform .22s ease}
.btn-text:hover i{transform:translateX(3px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--navy);font-size:17px;
}
.nav-toggle:hover{background:var(--navy-light)}

/* offcanvas drawer */
.offcanvas{background:#fff;max-width:88vw}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-title{font-size:17px;font-weight:700;color:var(--navy-deep)}
.drawer-body{padding:18px 20px 28px;display:flex;flex-direction:column;gap:10px}
.drawer-card{
  display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:12px;
  background:var(--navy-tint);color:var(--muted);font-size:15px;font-weight:500;
  border-left:3px solid transparent;
}
.drawer-card i{color:var(--copper);width:18px;text-align:center}
.drawer-card.active{background:var(--navy-light);color:var(--navy);font-weight:600;border-left-color:var(--navy)}
.drawer-card:hover{background:var(--navy-light);color:var(--navy)}
.drawer-cta{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.drawer-cta .btn-main,.drawer-cta .btn-ghost{width:100%}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;color:#fff;
  background:#0E3352 url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  min-height:300px;display:flex;align-items:center;
  padding:56px 0 72px;
}
.cat-hero::before{content:"";position:absolute;inset:0;background:rgba(14,51,82,.86)}
.cat-hero::after{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;
  border:1px dashed rgba(255,255,255,.16);border-radius:50%;
}
.hero-inner{position:relative;z-index:2;max-width:760px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:#C7D6E4;margin-bottom:16px;flex-wrap:wrap}
.crumb a{color:#C7D6E4}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(199,214,228,.55)}
.crumb .now{color:#fff;font-weight:600}
.cat-hero h1{font-size:40px;color:#fff;margin-bottom:16px}
.hero-sub{font-size:17px;color:#D6E2EE;max-width:620px;margin-bottom:28px}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  font-size:12px;color:#E4EDF6;
}
.hero-tag i{color:#E8B47A;font-size:11px}

/* ---------- stat bar ---------- */
.stat-wrap{position:relative;z-index:5;margin-top:-56px}
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:#fff;border-radius:var(--r-card);padding:28px 30px;
  box-shadow:0 8px 28px rgba(20,69,111,.10);
}
.stat-item{border-left:1px solid var(--line);padding-left:20px}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{font-size:30px;font-weight:700;color:var(--navy);line-height:1.2}
.stat-num span{font-size:14px;font-weight:600;color:var(--copper);margin-left:4px}
.stat-desc{font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- section ---------- */
.section{padding:80px 0 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:28px;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;
  background:var(--navy-light);color:var(--navy);font-size:12px;font-weight:600;margin-bottom:14px;
}
.eyebrow i{color:var(--copper)}

/* ---------- two column doc layout ---------- */
.doc-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start}
.prose{
  background:#fff;border-radius:var(--r-card);padding:38px 40px 42px;
  box-shadow:var(--sh-card);
}
.prose h2{
  font-size:24px;position:relative;padding-left:15px;margin:40px 0 16px;
  scroll-margin-top:110px;
}
.prose h2:first-child{margin-top:0}
.prose h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;
  background:var(--navy);border-radius:3px;
}
.prose h3{font-size:18px;margin:26px 0 10px}
.prose p{color:#2A3746;margin-bottom:18px}
.prose ul{margin-bottom:18px}
.prose ul li{position:relative;padding-left:20px;margin-bottom:8px;color:#2A3746}
.prose ul li::before{
  content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;
  border-radius:50%;background:var(--copper);
}
.prose figure{margin:24px 0}
.prose figcaption{font-size:13px;color:var(--weak);margin-top:8px;text-align:center}
.prose blockquote{
  margin:24px 0;padding:18px 22px;background:var(--navy-tint);
  border-left:3px solid var(--navy);border-radius:0 10px 10px 0;color:var(--muted);font-size:15px;
}
.prose .inline-note{
  background:var(--navy-tint);border-radius:12px;padding:20px 22px;margin:24px 0;
  display:flex;gap:14px;align-items:flex-start;
}
.prose .inline-note i{color:var(--copper);font-size:18px;margin-top:3px}
.prose .inline-note p{margin:0;font-size:15px;color:var(--muted)}
.kv-list li{display:flex;gap:10px;flex-wrap:wrap}
.kv-list li b{color:var(--navy-deep);font-weight:600}

/* faq */
.faq-list{margin-top:8px}
.faq-item{
  background:#fff;border-radius:8px;margin-bottom:12px;overflow:hidden;
  box-shadow:var(--sh-card);transition:box-shadow .22s ease;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--copper);font-size:14px;transition:transform .25s ease;flex-shrink:0;
}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--navy),var(--sh-card)}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item[open] summary{color:var(--navy-deep)}
.faq-body{padding:0 22px 20px;color:var(--muted);font-size:15px}

/* sticky aside */
.aside-sticky{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}
.anchor-card{
  background:#fff;border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-card);
}
.anchor-card h3{font-size:15px;color:var(--navy-deep);margin-bottom:14px;letter-spacing:.02em}
.anchor-nav{display:flex;flex-direction:column;gap:2px}
.anchor-nav a{
  display:block;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--muted);
  border-left:3px solid transparent;
}
.anchor-nav a:hover{background:var(--navy-tint);color:var(--navy);border-left-color:var(--copper)}
.anchor-card.related p{font-size:14px;color:var(--muted);margin-bottom:14px}
.related-links{display:flex;flex-direction:column;gap:8px}
.related-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;background:var(--navy-tint);
  font-size:14px;font-weight:500;color:var(--navy-deep);
}
.related-links a i{color:var(--copper);font-size:12px;transition:transform .22s ease}
.related-links a:hover{background:var(--navy-light);color:var(--navy)}
.related-links a:hover i{transform:translateX(3px)}
.aside-phone{
  background:var(--navy-deep);color:#fff;border-radius:var(--r-card);padding:24px;
}
.aside-phone h3{color:#fff;font-size:15px;margin-bottom:8px}
.aside-phone p{font-size:13px;color:#C7D6E4;margin-bottom:14px}
.aside-phone .num{font-size:19px;font-weight:700;color:#fff;letter-spacing:.02em}

/* ---------- cta card ---------- */
.cta-card{
  margin-top:56px;background:var(--navy-deep);border-radius:var(--r-card);
  padding:38px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:240px;height:240px;
  border:1px dashed rgba(255,255,255,.14);border-radius:50%;
}
.cta-copy{position:relative;z-index:2;max-width:620px}
.cta-copy h2{color:#fff;font-size:24px;margin-bottom:10px}
.cta-copy p{color:#C7D6E4;font-size:15px}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}
.cta-actions .btn-main{background:var(--copper);border-color:var(--copper)}
.cta-actions .btn-main:hover{background:#A96A24;border-color:#A96A24}
.cta-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}

/* ---------- sticky bottom bar ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:1020;background:#fff;
  box-shadow:0 -6px 20px rgba(20,69,111,.10);min-height:64px;
  display:flex;align-items:center;
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;padding:10px 0}
.sticky-text{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted)}
.sticky-text i{color:var(--copper)}
.sticky-actions{display:flex;gap:10px}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-deep);color:#C7D6E4;margin-top:80px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff}
.footer-brand strong{color:#fff;font-size:17px;font-weight:700}
.site-footer p{font-size:14px;line-height:1.8;color:#A9BCCE}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-links,.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#C7D6E4;font-size:14px}
.footer-links a:hover{color:var(--copper)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#C7D6E4;align-items:flex-start}
.footer-contact i{color:var(--copper);margin-top:5px;width:16px;text-align:center}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8FA6BC;
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-card{padding:8px 10px;font-size:13px}
  .nav-card i{display:none}
}
@media (max-width:991.98px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto}
  .nav-actions{display:none}
  .nav-cards{display:none}
  .nav-wrap{min-height:68px}
  .doc-layout{grid-template-columns:1fr;gap:32px}
  .aside-sticky{position:static;order:2}
  .prose{padding:28px 24px 32px}
  .cat-hero h1{font-size:30px}
  .stat-bar{grid-template-columns:repeat(2,1fr);gap:22px;padding:24px}
  .stat-item:nth-child(3){border-left:0;padding-left:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding-top:56px}
  .cta-card{padding:30px 26px}
}
@media (max-width:575.98px){
  body{font-size:15px}
  .cat-hero{padding:36px 0 52px;min-height:260px}
  .cat-hero h1{font-size:26px}
  .hero-sub{font-size:15px}
  .stat-wrap{margin-top:-36px}
  .stat-bar{grid-template-columns:1fr;gap:18px;padding:22px}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:14px}
  .stat-item:first-child{border-top:0;padding-top:0}
  .prose h2{font-size:20px}
  .prose h3{font-size:17px}
  .section-head h2{font-size:22px}
  .cta-copy h2{font-size:20px}
  .footer-grid{grid-template-columns:1fr}
  .sticky-inner{justify-content:space-between;gap:10px}
  .sticky-text{font-size:13px}
  .sticky-actions .btn-main,.sticky-actions .btn-ghost{padding:9px 14px;font-size:13px}
}
@media (max-width:420px){
  .sticky-text span{display:none}
}