/* roulang page: index */
:root{
  --primary:#1F5FA9;
  --primary-dark:#164A85;
  --primary-soft:#EAF1FA;
  --accent:#E0A44A;
  --bg:#F5F8FC;
  --surface:#FFFFFF;
  --text:#16202E;
  --text-2:#4A5768;
  --text-3:#8A94A6;
  --border:#E3E9F2;
  --danger:#B4453B;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(22,32,46,.05),0 8px 24px rgba(22,32,46,.06);
  --sh-2:0 12px 32px rgba(22,32,46,.10);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;background:#EAF1FA}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover,a:focus{color:var(--primary-dark)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
@media (max-width:1024px){.wrap{padding:0 24px}}
@media (max-width:640px){.wrap{padding:0 20px}}

/* ============ 顶部信息条 ============ */
.topbar{
  height:38px;
  background:var(--primary-dark);
  color:rgba(255,255,255,.86);
  font-size:13px;
  display:flex;
  align-items:center;
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0;white-space:nowrap;overflow:hidden}
.topbar-left .dot{width:6px;height:6px;border-radius:999px;background:var(--accent);flex:none}
.topbar-left strong{color:#fff;font-weight:600}
.topbar-left .sep{color:rgba(255,255,255,.35)}
.topbar-link{
  border:1px solid rgba(255,255,255,.45);
  color:#fff;
  border-radius:999px;
  padding:2px 13px;
  font-size:12.5px;
  line-height:1.6;
  flex:none;
  transition:all .2s ease;
}
.topbar-link:hover,.topbar-link:focus{background:#fff;color:var(--primary-dark);border-color:#fff}
@media (max-width:640px){
  .topbar-left{display:none}
  .topbar .wrap{justify-content:flex-end}
}

/* ============ 主导航 ============ */
.site-nav{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-nav.is-stuck{box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px}
.brand{display:inline-flex;align-items:center;gap:10px;height:34px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:9px;flex:none;
  background:var(--primary);
  display:grid;place-items:center;
  color:#fff;font-size:14px;
  box-shadow:0 2px 6px rgba(31,95,169,.28);
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--text);white-space:nowrap}
.brand-text:hover{color:var(--text)}

.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;
  display:inline-block;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;transition:transform .2s ease;
}
.nav-links a:hover{color:var(--primary)}
.nav-links a.active{color:var(--primary);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-links .drawer-cta{display:none}

.nav-right{display:flex;align-items:center;gap:14px;flex:none}
.nav-toggle{
  display:none;width:40px;height:40px;padding:0;
  border:1px solid var(--border);border-radius:10px;background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:.2s ease}

@media (max-width:1024px){
  .nav-toggle{display:flex}
  .nav-right .btn{display:none}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:6px 20px 20px;
    border-bottom:1px solid var(--border);
    box-shadow:var(--sh-2);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .2s ease,transform .2s ease,visibility .2s;
  }
  .nav-links.open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-links a{padding:14px 4px;font-size:16px;border-bottom:1px solid var(--border)}
  .nav-links a::after{display:none}
  .nav-links .drawer-cta{display:block;border-bottom:0;padding-top:18px}
  .nav-links .drawer-cta .btn{width:100%}
}
@media (max-width:640px){
  .nav-inner{height:62px}
  .brand-text{font-size:16.5px}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-secondary{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-secondary:hover,.btn-secondary:focus{background:var(--primary-soft);color:var(--primary-dark)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.ghost-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:15px;
  padding-bottom:1px;
  transition:box-shadow .2s ease,color .2s ease;
}
.ghost-link i{font-size:13px;transition:transform .2s ease}
.ghost-link:hover,.ghost-link:focus{color:var(--primary-dark);box-shadow:inset 0 -1px 0 var(--accent)}
.ghost-link:hover i{transform:translateX(4px)}

/* ============ 板块骨架 ============ */
.sec{padding:76px 0}
@media (max-width:1024px){.sec{padding:56px 0}}
@media (max-width:640px){.sec{padding:40px 0}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{font-size:30px;line-height:1.28;font-weight:700;letter-spacing:-.01em}
.sec-head .sec-sub{font-size:15px;line-height:1.75;color:var(--text-2);margin-top:10px;max-width:660px}
@media (max-width:1024px){.sec-head h2{font-size:26px}}
@media (max-width:640px){.sec-head h2{font-size:22px}.sec-head{margin-bottom:26px}}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:64px 0 80px;
  background-color:var(--bg);
  background-image:linear-gradient(rgba(245,248,252,.93),rgba(245,248,252,.99)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--border);
}
.hero-copy{max-width:560px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--border);border-radius:999px;
  padding:5px 14px;font-size:13px;color:var(--text-2);margin-bottom:20px;
}
.hero-tag i{color:var(--accent);font-size:12px}
.hero h1{font-size:40px;line-height:1.28;font-weight:700;letter-spacing:-.01em;margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);margin-bottom:30px}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.trust-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:30px}
.trust-row span{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--text-2)}
.trust-row i{color:var(--primary);font-size:13px}
.hero-visual{position:relative;margin-top:8px}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:16px;border:1px solid var(--border);box-shadow:var(--sh-1);
}
.hero-float{
  position:absolute;right:-14px;bottom:-20px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:14px 20px;box-shadow:var(--sh-2);
  display:flex;flex-direction:column;gap:2px;
}
.hero-float-num{font-size:22px;font-weight:700;color:var(--primary);line-height:1.2;font-variant-numeric:tabular-nums}
.hero-float-label{font-size:13px;color:var(--text-3)}
@media (max-width:1024px){
  .hero{padding:48px 0 64px}
  .hero h1{font-size:34px}
  .hero-copy{max-width:none}
  .hero-visual{margin-top:36px}
}
@media (max-width:640px){
  .hero{padding:36px 0 48px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15.5px}
  .hero-float{right:12px;bottom:-16px;padding:12px 16px}
  .trust-row{gap:14px;margin-top:24px}
}

/* ============ 痛点提问 ============ */
.q-card{
  position:relative;
  height:100%;
  background:#fff;
  border:1px solid var(--border);
  border-left:3px solid var(--primary);
  border-radius:var(--r-card);
  padding:24px 24px 22px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.q-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CDDDF0}
.q-card .q-icon{
  width:30px;height:30px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;font-size:13px;font-weight:700;
  margin-bottom:16px;
}
.q-card h3{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:10px}
.q-card p{font-size:14px;line-height:1.72;color:var(--text-2)}
.q-grid{margin-bottom:-24px}
.q-grid>[class*="cell"]{margin-bottom:24px}

/* ============ 方案卡片 ============ */
.plan-main{
  height:100%;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.plan-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.plan-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.plan-main .plan-main-body{padding:26px 26px 28px}
.plan-main h3{font-size:20px;font-weight:600;margin-bottom:12px}
.plan-main p{font-size:14.5px;color:var(--text-2);margin-bottom:18px}
.plan-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14.5px;color:var(--text-2);
  padding:9px 0;border-top:1px solid var(--border);
}
.plan-list li:first-child{border-top:0}
.plan-list i{color:var(--accent);font-size:12px;margin-top:6px}
.plan-mini{
  height:100%;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.plan-mini:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CDDDF0}
.plan-mini .num-big{
  font-size:38px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.4px var(--primary);
  font-variant-numeric:tabular-nums;margin-bottom:20px;
}
.plan-mini h3{font-size:18px;font-weight:600;margin-bottom:10px;line-height:1.45}
.plan-mini p{font-size:14px;line-height:1.72;color:var(--text-2);margin-bottom:16px}
.plan-mini .plan-mini-foot{margin-top:auto;font-size:13px;color:var(--text-3)}
@media (min-width:1025px){
  .plan-mini--offset{margin-top:24px}
}
@media (max-width:1024px){
  .plan-grid>[class*="cell"]{margin-bottom:24px}
  .plan-grid{margin-bottom:-24px}
}

/* ============ 数据区 ============ */
.stats{
  background-color:#FAFCFE;
  background-image:repeating-linear-gradient(135deg,rgba(31,95,169,.035) 0 1px,transparent 1px 9px);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.stat{padding:0 22px;border-left:1px solid var(--border)}
.stats .cell:first-child .stat{border-left:0}
.stat-num{font-size:44px;line-height:1.1;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums}
.stat-num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--primary)}
.stat-label{font-size:14px;color:var(--text-2);margin-top:10px}
@media (max-width:1024px){
  .stat{padding:0 16px}
  .stat-num{font-size:34px}
}
@media (max-width:640px){
  .stat{padding:0;border-left:0;border-top:1px solid var(--border);padding-top:18px;margin-top:18px}
  .stats .cell:first-child .stat{border-top:0;padding-top:0;margin-top:0}
  .stat-num{font-size:30px}
}

/* ============ 资讯列表 ============ */
.news-sec{background:#fff;border-bottom:1px solid var(--border)}
.news-grid{margin-bottom:-24px}
.news-grid>[class*="cell"]{margin-bottom:24px}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CDDDF0}
.news-thumb{position:relative;aspect-ratio:16/9;background:#EAF1FA;overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.badge{
  position:absolute;top:12px;left:12px;
  background:rgba(22,74,133,.92);color:#fff;
  font-size:12.5px;line-height:1.6;padding:3px 11px;border-radius:999px;
  backdrop-filter:saturate(1.1);
}
.news-body{padding:20px 22px 18px;display:flex;flex-direction:column;flex:1}
.news-body h3{
  font-size:17px;line-height:1.45;font-weight:600;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body .news-sum{
  font-size:14px;line-height:1.72;color:var(--text-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--text-3);
}
.news-meta .ghost-link{font-size:13.5px}
.empty-state{
  border:1.5px dashed #C9D7E8;border-radius:var(--r-card);
  background:#FAFCFE;padding:52px 24px;text-align:center;
}
.empty-state i{font-size:30px;color:#B7C7DA;margin-bottom:14px;display:block}
.empty-state p{font-size:14px;color:var(--text-3);margin-bottom:16px}

/* ============ FAQ ============ */
.faq-sec{background:var(--bg)}
.faq .accordion{background:transparent;border:0;margin:0}
.faq .accordion-item{
  background:#fff;border:1px solid var(--border);border-left:3px solid transparent;
  border-radius:var(--r-card);margin-bottom:10px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq .accordion-item:hover{box-shadow:var(--sh-1)}
.faq .accordion-item.is-active{border-left-color:var(--primary);box-shadow:var(--sh-1)}
.faq .accordion-title{
  border:0;background:transparent;
  padding:18px 56px 18px 22px;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.55;
  position:relative;transition:color .2s ease,background .2s ease;
}
.faq .accordion-title:hover{color:var(--primary);background:#FAFCFE}
.faq .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;margin:0;font-size:22px;font-weight:400;line-height:1;
  color:var(--primary);
}
.faq .accordion-item.is-active .accordion-title::before{content:"−"}
.faq .accordion-content{
  border:0;padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2);
}
.faq .accordion-content p{margin:0}

/* ============ CTA 横条 ============ */
.cta-sec{padding-top:0}
.cta-bar{
  background:var(--primary);
  border-radius:16px;
  padding:32px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  flex-wrap:wrap;
  box-shadow:var(--sh-1);
}
.cta-bar h2{font-size:24px;line-height:1.35;font-weight:700;color:#fff;letter-spacing:-.01em}
.cta-bar p{font-size:14.5px;color:rgba(255,255,255,.82);margin-top:8px}
.cta-bar .btn-secondary{border-color:#fff;background:transparent;color:#fff}
.cta-bar .btn-secondary:hover{background:#fff;color:var(--primary-dark)}
@media (max-width:640px){
  .cta-bar{padding:26px 22px;flex-direction:column;align-items:stretch}
  .cta-bar h2{font-size:20px}
  .cta-bar .btn{width:100%}
}

/* ============ 表单 / 弹层 ============ */
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:500;color:var(--text-2);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;
  border:1.5px solid var(--border);border-radius:var(--r-input);
  background:#fff;font-size:15px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:96px;padding:11px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,95,169,.12),inset 0 1px 2px rgba(22,32,46,.04);
}
.field input:invalid:not(:placeholder-shown){border-color:var(--danger)}
.field-note{font-size:12.5px;color:var(--text-3);line-height:1.7;margin-top:12px}
.check-row{display:flex;align-items:flex-start;gap:9px;margin-top:14px}
.check-row input{width:16px;height:16px;margin-top:4px;flex:none;accent-color:var(--primary)}
.check-row label{font-size:12.5px;color:var(--text-3);line-height:1.7}
.check-row a{text-decoration:underline;text-underline-offset:2px}

.reveal-overlay{background:rgba(22,32,46,.45)}
.reveal.cta-modal{
  width:calc(100% - 40px);max-width:520px;
  border:0;border-radius:16px;padding:32px;
  box-shadow:var(--sh-2);background:#fff;
}
.reveal.cta-modal h2{font-size:22px;font-weight:700;line-height:1.35;margin-bottom:8px}
.reveal.cta-modal .modal-desc{font-size:14px;color:var(--text-2);margin-bottom:22px}
.close-button{
  position:absolute;right:16px;top:14px;
  color:var(--text-3);font-size:22px;line-height:1;background:transparent;border:0;
}
.close-button:hover{color:var(--primary)}
@media (max-width:640px){
  .reveal.cta-modal{
    width:100%;max-width:100%;margin:0;
    top:auto !important;bottom:0;left:0;right:0;
    border-radius:16px 16px 0 0;
    padding:26px 20px 30px;max-height:88vh;overflow-y:auto;
  }
}

/* ============ 隐私说明短栏 ============ */
.privacy-bar{
  background:#FFFFFF;border-top:1px solid var(--border);
  padding:20px 0;
}
.privacy-bar p{font-size:12.5px;line-height:1.8;color:var(--text-3);text-align:center}
.privacy-bar a{color:var(--text-3);text-decoration:underline;text-underline-offset:2px}
.privacy-bar a:hover{color:var(--primary)}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.74);padding:60px 0 0;font-size:14px}
.footer-grid{margin-bottom:-28px}
.footer-grid>[class*="cell"]{margin-bottom:28px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);box-shadow:none}
.footer-brand span{font-size:17px;font-weight:700;color:#fff}
.footer-desc{line-height:1.8;margin-bottom:16px;max-width:300px}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13.5px}
.footer-contact i{width:16px;color:rgba(255,255,255,.5);margin-right:6px}
.site-footer h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px}
.site-footer ul li{margin-bottom:11px}
.site-footer ul a{color:rgba(255,255,255,.74);font-size:14px}
.site-footer ul a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  margin-top:32px;padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}
@media (max-width:768px){
  .site-footer{padding-top:44px}
  .footer-brand{margin-bottom:12px}
}

/* ============ 移动端底部粘性条 ============ */
.mobile-cta{display:none}
@media (max-width:640px){
  .mobile-cta{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:#fff;border-top:1px solid var(--border);
    padding:10px 16px;gap:10px;
    box-shadow:0 -6px 20px rgba(22,32,46,.08);
  }
  .mobile-cta .btn{flex:1;height:42px;padding:0 12px;font-size:14px}
  body{padding-bottom:74px}
}

/* roulang page: article */
:root{
  --primary:#1F5FA9;
  --primary-dark:#164A85;
  --accent:#E0A44A;
  --bg:#F5F8FC;
  --surface:#FFFFFF;
  --text:#16202E;
  --text-2:#4A5768;
  --text-3:#8A94A6;
  --line:#E3E9F2;
  --soft:#EAF1FA;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --sh1:0 1px 2px rgba(22,32,46,.05), 0 8px 24px rgba(22,32,46,.06);
  --sh2:0 12px 32px rgba(22,32,46,.10);
}

/* ---------- reset / base ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:0;
  color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--soft);}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em;color:var(--text);}
p{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;padding:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(31,95,169,.16);}

/* ---------- container ---------- */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:640px){.wrap{padding:0 24px;}}
@media (min-width:1024px){.wrap{padding:0 32px;}}

/* ---------- topbar ---------- */
.topbar{background:var(--primary-dark);height:38px;overflow:hidden;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0;font-size:13px;color:rgba(255,255,255,.8);}
.tb-strong{color:#fff;font-weight:600;white-space:nowrap;}
.tb-sep{width:1px;height:12px;background:rgba(255,255,255,.32);flex:0 0 1px;}
.tb-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.tb-link{
  flex:0 0 auto;font-size:12.5px;color:#fff;border:1px solid rgba(255,255,255,.45);
  border-radius:999px;padding:4px 13px;line-height:1.3;transition:all .18s ease;white-space:nowrap;
}
.tb-link:hover{background:rgba(255,255,255,.15);color:#fff;border-color:rgba(255,255,255,.75);}
@media (max-width:640px){.topbar-left{display:none;} .topbar-inner{justify-content:flex-end;}}

/* ---------- header / nav ---------- */
.site-nav{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .22s ease;
}
.site-nav.is-scrolled{box-shadow:0 6px 20px rgba(22,32,46,.08);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;flex:0 0 32px;
}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:-.01em;white-space:nowrap;}
.brand:hover .brand-text{color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links > a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;text-decoration:none;white-space:nowrap;
}
.nav-links > a:hover{color:var(--primary);}
.nav-links > a.active{color:var(--primary);font-weight:600;}
.nav-links > a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:2px;background:var(--primary);
}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.drawer-cta{display:none;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--text-2);border-radius:2px;transition:.2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;line-height:1;
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  text-decoration:none;border:0;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;padding:12px 22px;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2);}
.btn-primary:active{transform:translateY(0);}
.btn-sm{padding:9px 17px;font-size:14px;}
.btn-outline{background:#fff;color:var(--primary);border:1.5px solid var(--primary);padding:10.5px 20px;}
.btn-outline:hover{background:var(--soft);color:var(--primary-dark);border-color:var(--primary-dark);}
.btn-block{width:100%;}
.link-ghost{display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:600;color:var(--primary);}
.link-ghost i{font-size:12px;transition:transform .18s ease;}
.link-ghost:hover{color:var(--primary-dark);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px;}
.link-ghost:hover i{transform:translateX(4px);}

/* ---------- breadcrumb + page head ---------- */
.page-head{padding:28px 0 0;background:var(--bg);}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb-sep{color:#C3CDDC;}
.crumb-cur{color:var(--text-2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-head{padding:20px 0 24px;border-bottom:1px solid var(--line);margin-bottom:28px;}
.article-head h1{font-size:34px;line-height:1.32;}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;margin-top:18px;font-size:13.5px;color:var(--text-3);}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta i{font-size:12.5px;color:var(--text-3);}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  background:var(--soft);color:var(--primary);font-size:12.5px;font-weight:600;line-height:1.5;
}
.badge-accent{background:rgba(224,164,74,.16);color:#9A6A16;}

/* ---------- article layout ---------- */
.article-sec{padding:0 0 40px;}
.article-shell{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--sh1);
}
@media (max-width:640px){.article-shell{padding:20px;}}

/* ---------- article body ---------- */
.article-body{font-size:16px;line-height:1.75;color:var(--text);max-width:780px;}
.article-body h2{
  position:relative;font-size:26px;line-height:1.35;margin:38px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;width:4px;height:.92em;border-radius:2px;background:var(--primary);
}
.article-body h3{
  position:relative;font-size:19px;line-height:1.4;margin:28px 0 12px;padding-left:12px;
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.3em;width:3px;height:.8em;border-radius:2px;background:var(--accent);
}
.article-body p{margin:0 0 18px;}
.article-body strong{font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--primary);}
.article-body a{color:var(--primary);text-decoration:underline;text-decoration-color:rgba(31,95,169,.35);text-underline-offset:3px;}
.article-body a:hover{text-decoration-color:var(--accent);}
.article-body blockquote{
  margin:0 0 18px;padding:16px 20px;background:#F2F7FD;border-left:3px solid var(--primary);
  border-radius:0 10px 10px 0;color:var(--text-2);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:20px auto;height:auto;max-width:100%;}
.article-body figure{margin:20px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:15px;border-radius:10px;overflow:hidden;}
.article-body thead th{background:var(--soft);color:var(--primary-dark);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#F8FBFF;}
.article-body pre{
  background:#16202E;color:#E6EDF7;padding:16px 18px;border-radius:10px;overflow:auto;
  font-size:14px;line-height:1.7;margin:0 0 20px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
.article-body code{
  background:#F0F5FC;color:var(--primary-dark);padding:2px 6px;border-radius:6px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
.article-body pre code{background:none;color:inherit;padding:0;}

/* ---------- empty state ---------- */
.empty-box{
  border:1px dashed #C7D6E8;border-radius:var(--radius-card);background:#FAFCFF;
  padding:52px 24px;text-align:center;color:var(--text-3);
}
.empty-box i{font-size:26px;color:#B6C6DA;display:block;margin-bottom:12px;}
.empty-box p{font-size:14px;margin-bottom:16px;}

/* ---------- article foot ---------- */
.article-foot{
  margin-top:32px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:18px;
}
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;}
.tag-row .label{font-size:13px;color:var(--text-3);}
.tag{
  display:inline-block;padding:5px 13px;border-radius:999px;background:var(--soft);color:var(--primary);
  font-size:13px;transition:all .18s ease;
}
.tag:hover{background:var(--primary);color:#fff;}
.share-row{display:flex;align-items:center;gap:10px;}
.share-row .label{font-size:13px;color:var(--text-3);margin-right:2px;}
.share-btn{
  width:34px;height:34px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--text-2);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;transition:all .18s ease;
}
.share-btn:hover{background:var(--primary);border-color:var(--primary);color:#fff;transform:translateY(-2px);}

/* ---------- sidebar ---------- */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--sh1);margin-bottom:20px;
}
.side-card h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--accent);font-size:14px;}
.hot-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);}
.hot-list li:last-child{border-bottom:0;padding-bottom:0;}
.hot-list li:first-child{padding-top:0;}
.hot-num{
  flex:0 0 22px;height:22px;border-radius:6px;background:var(--soft);color:var(--primary);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;margin-top:3px;
}
.hot-list li:nth-child(-n+3) .hot-num{background:var(--primary);color:#fff;}
.hot-list a{font-size:14.5px;color:var(--text-2);line-height:1.6;}
.hot-list a:hover{color:var(--primary);}
.side-cta{
  background:linear-gradient(180deg,#F3F8FE 0%,#FFFFFF 100%);
  border:1px solid #DCE8F6;border-radius:var(--radius-card);padding:24px;box-shadow:var(--sh1);
}
.side-cta h3{font-size:17px;margin-bottom:10px;}
.side-cta p{font-size:14px;color:var(--text-2);margin-bottom:18px;line-height:1.7;}
.side-cta .tip{font-size:12.5px;color:var(--text-3);margin:12px 0 0;}

/* ---------- recommend ---------- */
.rel-sec{padding:56px 0 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.sec-head h2{font-size:24px;}
.sec-head p{font-size:14px;color:var(--text-3);margin-top:6px;}
.rel-card{
  display:flex;gap:14px;height:100%;padding:14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--sh1);transition:all .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#CBDDF1;}
.rel-thumb{
  flex:0 0 108px;width:108px;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:var(--soft);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;}
.rel-info{min-width:0;display:flex;flex-direction:column;justify-content:center;}
.rel-info .rel-cat{font-size:12px;color:var(--accent);font-weight:600;margin-bottom:6px;}
.rel-info h4{font-size:15px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-card:hover h4{color:var(--primary);}

/* ---------- back row ---------- */
.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}

/* ---------- cta band ---------- */
.cta-band{
  margin-top:56px;background:var(--primary-dark);border-radius:16px;padding:36px 34px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  box-shadow:var(--sh2);
}
.cta-band h2{color:#fff;font-size:22px;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:14.5px;}
.cta-band .btn-primary{background:var(--accent);color:#2A1D06;}
.cta-band .btn-primary:hover{background:#CF9439;color:#2A1D06;}

/* ---------- privacy bar ---------- */
.privacy-bar{padding:26px 0 22px;border-top:1px solid var(--line);margin-top:56px;background:var(--bg);}
.privacy-bar p{font-size:13px;color:var(--text-3);line-height:1.9;}
.privacy-bar a{color:var(--text-3);text-decoration:underline;text-underline-offset:3px;}
.privacy-bar a:hover{color:var(--primary);}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.78);padding:52px 0 0;}
.footer-grid{padding-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.16);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);margin-bottom:16px;max-width:300px;}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);}
.footer-contact i{width:16px;color:var(--accent);margin-right:4px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{font-size:14px;color:rgba(255,255,255,.72);}
.site-footer ul a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:18px 0;display:flex;align-items:center;
  justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom .links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.footer-bottom .links a{color:rgba(255,255,255,.6);}
.footer-bottom .links a:hover{color:#fff;}
@media (max-width:640px){
  .footer-grid > .cell{margin-bottom:26px;}
  .footer-grid > .cell:last-child{margin-bottom:0;}
}

/* ---------- mobile sticky cta ---------- */
.mobile-cta{display:none;}
@media (max-width:640px){
  body{padding-bottom:66px;}
  .mobile-cta{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;gap:10px;padding:10px 14px;
    background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(22,32,46,.08);
  }
  .mobile-cta .btn{flex:1;}
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-head h1{font-size:28px;}
  .article-body{max-width:100%;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:17.5px;}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;top:108px;left:0;right:0;bottom:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;padding:16px 24px 32px;
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .2s ease,transform .2s ease,visibility .2s;overflow-y:auto;
    border-top:1px solid var(--line);
  }
  .nav-links.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0);}
  .nav-links > a{padding:15px 0;border-bottom:1px solid var(--line);font-size:16px;}
  .nav-links > a.active::after{display:none;}
  .nav-links > a.active{color:var(--primary);}
  .drawer-cta{display:block;margin-top:22px;}
  .nav-toggle{display:flex;}
  .nav-right .btn-sm{display:none;}
}
@media (max-width:760px){
  .topbar{height:auto;min-height:38px;}
  .topbar-inner{height:auto;min-height:38px;padding-top:6px;padding-bottom:6px;}
  .rel-card{flex-direction:column;}
  .rel-thumb{flex:none;width:100%;aspect-ratio:16/9;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:28px 22px;}
  .sec-head{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .article-head h1{font-size:24px;}
  .article-body{font-size:15px;}
  .article-shell{padding:18px;}
  .breadcrumb-cur,.crumb-cur{max-width:180px;}
  .back-row .btn{flex:1;}
}

/* roulang page: category1 */
:root{
  --brand:#1F5FA9;
  --brand-dark:#164A85;
  --accent:#E0A44A;
  --bg:#F5F8FC;
  --surface:#FFFFFF;
  --text:#16202E;
  --text-2:#4A5768;
  --text-3:#8A94A6;
  --line:#E3E9F2;
  --tint:#EAF1FA;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-lg:16px;
  --shadow-1:0 1px 2px rgba(22,32,46,.05), 0 8px 24px rgba(22,32,46,.06);
  --shadow-2:0 12px 32px rgba(22,32,46,.10);
  --wrap:1200px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-cn);font-size:16px;line-height:1.75;letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--tint);}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-0.01em;color:var(--text);}
p{margin:0;}
button,input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
::selection{background:rgba(31,95,169,.15);}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px;width:100%;}
@media (max-width:63.9375em){.wrap{padding:0 24px;}}
@media (max-width:39.9375em){.wrap{padding:0 20px;}}

/* ---------- topbar ---------- */
.topbar{background:var(--brand-dark);color:rgba(255,255,255,.88);height:38px;display:flex;align-items:center;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-note{display:inline-flex;align-items:center;gap:8px;color:rgba(255,255,255,.86);}
.topbar-note i{color:var(--accent);font-size:12px;}
.topbar-link{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.45);color:#fff;font-size:12.5px;white-space:nowrap;
  transition:background-color .18s ease,border-color .18s ease;
}
.topbar-link:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.75);color:#fff;}
@media (max-width:39.9375em){
  .topbar-inner{justify-content:flex-end;}
  .topbar-note{display:none;}
}

/* ---------- nav ---------- */
.site-nav{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .22s ease;
}
.site-nav.is-scrolled{box-shadow:0 8px 24px rgba(22,32,46,.07);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px;}
.brand{display:inline-flex;align-items:center;gap:10px;height:34px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  box-shadow:inset 0 -8px 14px rgba(0,0,0,.10);
}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:-.01em;white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand);}

.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links > a{
  position:relative;height:70px;display:inline-flex;align-items:center;
  font-size:15px;font-weight:500;color:var(--text-2);white-space:nowrap;
}
.nav-links > a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:2px;
  background:transparent;transition:background-color .18s ease;
}
.nav-links > a:hover{color:var(--brand);}
.nav-links > a:hover::after{background:var(--tint);}
.nav-links > a.active{color:var(--brand);font-weight:600;}
.nav-links > a.active::after{background:var(--brand);}
.drawer-cta{display:none;}

.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:19px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:63.9375em){
  .nav-toggle{display:flex;}
  .nav-right .btn{display:none;}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:78%;max-width:340px;background:#fff;
    flex-direction:column;align-items:stretch;gap:2px;padding:92px 22px 28px;
    transform:translateX(105%);transition:transform .28s ease;
    box-shadow:-12px 0 32px rgba(22,32,46,.14);z-index:70;overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links > a{
    height:auto;padding:14px 4px;font-size:16px;border-bottom:1px solid var(--line);
  }
  .nav-links > a::after{display:none;}
  .drawer-cta{display:block;margin-top:22px;}
  .drawer-cta .btn{width:100%;}
}
@media (min-width:64em){
  .drawer-cta{display:none !important;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;background:none;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand);}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-outline{background:#fff;border:1.5px solid var(--brand);color:var(--brand);}
.btn-outline:hover{background:var(--tint);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost{
  height:auto;padding:2px 2px;background:transparent;border:0;color:var(--brand);font-weight:600;border-radius:4px;
}
.btn-ghost span{transition:border-color .18s ease;}
.btn-ghost:hover{color:var(--brand-dark);}
.btn-ghost i{transition:transform .18s ease;}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-ghost:hover span{border-bottom:2px solid var(--accent);}

/* ---------- page head ---------- */
.page-head{
  position:relative;color:#fff;padding:56px 0 68px;
  background-image:linear-gradient(rgba(22,74,133,.90),rgba(22,74,133,.90)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;background-repeat:no-repeat;
}
.page-head::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;background:rgba(255,255,255,.16);
}
.page-head .crumbs{font-size:13px;color:rgba(255,255,255,.68);margin-bottom:18px;display:flex;align-items:center;gap:8px;}
.page-head .crumbs a{color:rgba(255,255,255,.82);}
.page-head .crumbs a:hover{color:#fff;}
.page-head .crumbs .sep{color:rgba(255,255,255,.42);}
.page-head h1{color:#fff;font-size:40px;max-width:860px;}
.page-head .lead{color:rgba(255,255,255,.88);font-size:17px;max-width:660px;margin-top:16px;}
.head-actions{margin-top:30px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.page-head .btn-outline{border-color:rgba(255,255,255,.55);background:transparent;color:#fff;}
.page-head .btn-outline:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
.page-head .btn-ghost{color:#fff;}
.page-head .btn-ghost:hover{color:#fff;}
.page-head .btn-ghost:hover span{border-bottom-color:var(--accent);}
.head-tags{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px;}
.head-tags span{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.92);font-size:13px;
}

/* ---------- section ---------- */
.section{padding:76px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);
  letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent);}
.section-head h2{font-size:30px;}
.section-sub{color:var(--text-2);font-size:16px;margin-top:14px;}

/* ---------- media block ---------- */
.media-figure{
  margin:0;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--tint);
}
.media-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.media-copy h3{font-size:20px;margin-bottom:14px;}
.media-copy p{color:var(--text-2);margin-bottom:16px;}
.media-copy p:last-of-type{margin-bottom:22px;}
.mini-points li{
  display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-top:1px solid var(--line);
  color:var(--text-2);font-size:15px;
}
.mini-points li:first-child{border-top:0;padding-top:0;}
.mini-points i{color:var(--brand);font-size:13px;margin-top:6px;}
.mini-points strong{color:var(--text);font-weight:600;}

/* ---------- check list ---------- */
.check-list{margin-bottom:-24px;}
.check-list li{margin-bottom:24px;}
.check-item{
  display:flex;gap:18px;align-items:flex-start;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE0F3;}
.check-num{
  flex:0 0 auto;width:38px;height:38px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  border:1.5px solid var(--brand);color:var(--brand);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.check-item h3{font-size:17px;margin-bottom:8px;}
.check-item p{color:var(--text-2);font-size:15px;}

/* ---------- stats ---------- */
.stats{
  background-color:#EEF4FB;
  background-image:repeating-linear-gradient(135deg,rgba(31,95,169,.045) 0 1px,transparent 1px 14px);
  border-radius:var(--radius-lg);border:1px solid #DEE9F5;padding:44px 36px;
}
.stat-grid{margin-bottom:0;}
.stat{padding:6px 0 6px 26px;border-left:1px solid rgba(31,95,169,.18);height:100%;}
.stat-grid > .cell:nth-child(1) .stat{border-left:0;padding-left:0;}
.stat-num{
  font-size:44px;font-weight:700;color:var(--brand);line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-num small{font-size:17px;font-weight:600;margin-left:4px;color:var(--brand);}
.stat-label{font-size:14px;color:var(--text-2);margin-top:10px;}
@media (max-width:63.9375em){
  .stat-grid > .cell:nth-child(odd) .stat{border-left:0;padding-left:0;}
  .stat-grid > .cell:nth-child(n+3) .stat{margin-top:24px;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.accordion{background:transparent;border:0;margin:0;}
.accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:10px;box-shadow:var(--shadow-1);overflow:hidden;
}
.accordion .accordion-item:last-child{margin-bottom:0;}
.accordion .accordion-title{
  display:block;position:relative;background:#fff;border:0;
  padding:20px 62px 20px 24px;font-size:16px;font-weight:600;color:var(--text);
  line-height:1.5;border-left:3px solid transparent;transition:background-color .18s ease,border-color .18s ease;
}
.accordion .accordion-title:hover{background:#FAFCFF;}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand);line-height:1;
}
.accordion .accordion-item.is-active .accordion-title{border-left-color:var(--brand);background:#FAFCFF;}
.accordion .accordion-item.is-active .accordion-title::before{content:"−";}
.accordion .accordion-content{
  display:none;background:#fff;border:0;padding:0 24px 22px 27px;
  font-size:15px;color:var(--text-2);line-height:1.8;
}
.accordion .accordion-content.is-active{display:block;}
.accordion .accordion-content b{color:var(--text);font-weight:600;}

/* ---------- CTA bar ---------- */
.cta-bar{
  background:var(--brand-dark);border-radius:var(--radius-lg);padding:34px 38px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--shadow-2);
}
.cta-bar h2{color:#fff;font-size:24px;}
.cta-bar p{color:rgba(255,255,255,.82);font-size:15px;margin-top:8px;max-width:600px;}
.cta-bar .btn-primary{background:var(--accent);border-color:var(--accent);color:#20304A;}
.cta-bar .btn-primary:hover{background:#D09334;border-color:#D09334;color:#20304A;}

/* ---------- privacy bar ---------- */
.privacy-bar{border-top:1px solid var(--line);background:var(--bg);padding:18px 0;}
.privacy-bar p{font-size:13px;color:var(--text-3);line-height:1.7;}
.privacy-bar a{color:var(--text-2);border-bottom:1px solid rgba(74,87,104,.35);}
.privacy-bar a:hover{color:var(--brand);border-bottom-color:var(--brand);}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.76);padding:60px 0 0;}
.footer-grid{margin-bottom:0;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);box-shadow:none;}
.footer-desc{font-size:14px;line-height:1.75;color:rgba(255,255,255,.72);margin-bottom:18px;}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);}
.footer-contact i{color:var(--accent);margin-right:8px;font-size:12px;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{color:rgba(255,255,255,.74);font-size:14px;}
.site-footer ul a:hover{color:#fff;}
.site-footer .cell{margin-bottom:34px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;
}
.footer-bottom .links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:#fff;}
.footer-bottom span{color:rgba(255,255,255,.5);}

/* ---------- mobile cta ---------- */
.mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:65;
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  padding:10px 16px;gap:10px;box-shadow:0 -6px 20px rgba(22,32,46,.08);
}
@media (max-width:39.9375em){
  .mobile-cta{display:flex;}
  .mobile-cta .btn{flex:1;height:44px;font-size:14px;padding:0 10px;}
}

/* ---------- responsive type ---------- */
@media (max-width:63.9375em){
  .section{padding:56px 0;}
  .page-head{padding:44px 0 56px;}
  .page-head h1{font-size:34px;}
  .section-head h2{font-size:26px;}
  .stats{padding:34px 26px;}
  .stat-num{font-size:38px;}
  .cta-bar{padding:30px 26px;}
}
@media (max-width:39.9375em){
  .section{padding:40px 0;}
  .page-head{padding:34px 0 44px;}
  .page-head h1{font-size:28px;}
  .page-head .lead{font-size:15.5px;}
  .section-head h2{font-size:22px;}
  .section-head{margin-bottom:28px;}
  .stat-num{font-size:32px;}
  .stat-num small{font-size:15px;}
  .stats{padding:26px 20px;}
  .check-item{padding:20px 18px;gap:14px;}
  .cta-bar h2{font-size:20px;}
  .cta-bar .btn{width:100%;}
  .site-footer{padding-top:44px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  body{padding-bottom:64px;}
}

/* roulang page: category2 */
:root{
  --primary:#1F5FA9;
  --primary-dark:#164A85;
  --primary-soft:#EAF1FA;
  --accent:#E0A44A;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ink:#16202E;
  --ink-2:#4A5768;
  --ink-3:#8A94A6;
  --line:#E3E9F2;
  --danger:#B5453A;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --sh-1:0 1px 2px rgba(22,32,46,.05), 0 8px 24px rgba(22,32,46,.06);
  --sh-2:0 12px 32px rgba(22,32,46,.10);
  --sec-pad:40px;
  --wrap-max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:#EAF1FA;}
a{color:var(--primary);text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-0.01em;line-height:1.28;}
p{margin:0;}
ul,ol{margin:0;}
button{font:inherit;color:inherit;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.wrap{width:100%;max-width:var(--wrap-max);margin:0 auto;padding:0 20px;}
@media screen and (min-width:40em){.wrap{padding:0 24px;}}
@media screen and (min-width:64em){.wrap{padding:0 32px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--primary-dark);color:#fff;font-size:13px;min-height:38px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar-tag{font-weight:600;letter-spacing:.02em;white-space:nowrap;}
.topbar-note{color:rgba(255,255,255,.72);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
@media screen and (max-width:39.9375em){.topbar-note{display:none;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  border:1.5px solid transparent;font-size:15px;font-weight:600;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  white-space:nowrap;text-decoration:none;line-height:1;
}
.btn i{font-size:13px;transition:transform .2s ease;}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 1px 2px rgba(22,32,46,.05);}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(22,32,46,.08);}
.btn-secondary{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-secondary:hover{background:var(--primary-soft);color:var(--primary-dark);}
.btn-ghost{background:transparent;color:var(--primary);border-color:transparent;padding:0 2px;height:auto;font-weight:600;}
.btn-ghost:hover{color:var(--primary-dark);}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-on-dark{background:#fff;color:var(--primary-dark);border-color:#fff;}
.btn-on-dark:hover{background:#EAF1FA;color:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.52);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-xs{height:30px;padding:0 14px;font-size:13px;border-radius:8px;}
.btn-block{width:100%;}

/* ---------- 导航 ---------- */
.site-nav{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-nav.is-stuck{box-shadow:0 6px 20px rgba(22,32,46,.08);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:18px;letter-spacing:-0.01em;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;flex:0 0 auto;
}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-links a{color:var(--ink-2);font-size:15px;font-weight:500;transition:color .2s ease;}
.nav-links a:hover{color:var(--primary);}
.nav-links a.active{color:var(--primary);font-weight:600;}
.drawer-cta{display:block;}

@media screen and (min-width:64em){
  .nav-links{display:flex;align-items:center;gap:28px;}
  .nav-links a{position:relative;padding:6px 0;}
  .nav-links a.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;
    background:var(--primary);border-radius:2px;
  }
  .drawer-cta{display:none;}
  .nav-toggle{display:none;}
}
@media screen and (max-width:63.9375em){
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;
    background:#fff;display:flex;flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 28px;z-index:95;
    box-shadow:-8px 0 32px rgba(22,32,46,.14);
    transform:translateX(106%);transition:transform .28s ease;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px;}
  .nav-links a:last-of-type{border-bottom:0;}
  .drawer-cta{margin-top:22px;}
}
@media screen and (max-width:39.9375em){
  .nav-right .btn-sm{display:none;}
}

.nav-toggle{
  width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:10px;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:var(--primary);background:var(--primary-soft);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .22s ease,opacity .22s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.nav-overlay{
  position:fixed;inset:0;background:rgba(22,32,46,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.nav-overlay.show{opacity:1;visibility:visible;}
@media screen and (min-width:64em){.nav-overlay{display:none;}}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;color:var(--ink-3);padding:18px 0 0;}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{margin:0 6px;color:#C6CEDA;}
.breadcrumb .cur{color:var(--ink-2);}

/* ---------- 分类首屏 ---------- */
.cat-hero{
  padding:26px 0 var(--sec-pad);
  background-image:linear-gradient(rgba(245,248,252,.95),rgba(245,248,252,.99)),url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-hero-inner{max-width:820px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:.01em;
}
.cat-hero h1{margin-top:16px;font-size:28px;}
@media screen and (min-width:40em){.cat-hero h1{font-size:34px;}}
@media screen and (min-width:64em){.cat-hero h1{font-size:40px;}}
.cat-hero .lede{margin-top:16px;font-size:17px;line-height:1.75;color:var(--ink-2);max-width:720px;}
.cat-hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sec-pad) 0;}
@media screen and (min-width:40em){.section,.cat-hero{padding-top:56px;}}
@media screen and (min-width:64em){.section,.cat-hero{padding-top:76px;}}
.section{padding-bottom:var(--sec-pad);}
@media screen and (min-width:40em){.section{padding-bottom:56px;}}
@media screen and (min-width:64em){.section{padding-bottom:76px;}}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:740px;margin-bottom:36px;}
.section-head h2{font-size:22px;}
@media screen and (min-width:40em){.section-head h2{font-size:26px;}}
@media screen and (min-width:64em){.section-head h2{font-size:30px;}}
.section-head p{margin-top:12px;font-size:16px;color:var(--ink-2);}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:22px;}
@media screen and (min-width:40em){.steps{grid-template-columns:repeat(2,1fr);gap:24px;}}
@media screen and (min-width:64em){.steps{grid-template-columns:repeat(4,1fr);}}
.step{position:relative;}
@media screen and (min-width:64em){
  .step::after{
    content:"";position:absolute;top:22px;right:-24px;width:24px;
    border-top:1px dashed #C9D8EA;
  }
  .step:last-child::after{display:none;}
}
.step-num{
  width:44px;height:44px;border-radius:50%;background:#fff;border:1.5px solid var(--primary);
  color:var(--primary);display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;font-variant-numeric:tabular-nums;
}
.step h3{margin-top:18px;font-size:18px;}
.step p{margin-top:8px;font-size:15px;color:var(--ink-2);}

/* ---------- 图文交替 ---------- */
.split{display:grid;gap:28px;align-items:center;}
@media screen and (min-width:64em){
  .split{grid-template-columns:1fr 1fr;gap:56px;}
  .split.reverse .split-media{order:2;}
  .split.reverse .split-body{order:1;}
}
.split-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line);}
.split-media img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;}
.split-body h2{font-size:22px;}
@media screen and (min-width:40em){.split-body h2{font-size:26px;}}
.split-body .sub{margin-top:14px;font-size:16px;color:var(--ink-2);}
.point-list{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px;}
.point-list li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);}
.point-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--accent);
}
.split-actions{margin-top:26px;}

/* ---------- 方案对比 ---------- */
.compare{display:grid;gap:22px;}
@media screen and (min-width:64em){.compare{grid-template-columns:1fr 1fr;gap:28px;}}
.compare-card{border-radius:var(--r-card);padding:28px;border:1px solid var(--line);}
.compare-card.soft-blue{background:#EAF1FA;border-color:#D5E3F5;}
.compare-card.soft-amber{background:#FBF3E5;border-color:#F0DFC0;}
.compare-card h3{font-size:19px;}
.compare-card .tagline{margin-top:10px;font-size:15px;color:var(--ink-2);}
.compare-card ul{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:12px;}
.compare-card li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);align-items:flex-start;}
.compare-card li i{color:var(--primary);font-size:12px;margin-top:6px;flex:0 0 auto;}
.compare-card.soft-amber li i{color:#C08A32;}

/* ---------- CTA 条 ---------- */
.cta-bar{
  background:var(--primary-dark);border-radius:18px;padding:30px 26px;color:#fff;
  display:flex;flex-direction:column;gap:20px;align-items:flex-start;
}
@media screen and (min-width:64em){
  .cta-bar{flex-direction:row;align-items:center;justify-content:space-between;padding:38px 44px;gap:32px;}
}
.cta-bar h2{font-size:22px;color:#fff;}
@media screen and (min-width:64em){.cta-bar h2{font-size:26px;}}
.cta-bar p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.78);max-width:560px;}

/* ---------- 隐私短栏 ---------- */
.privacy-bar{background:#fff;border-top:1px solid var(--line);padding:18px 0;font-size:13px;color:var(--ink-3);}
.privacy-bar .wrap{display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;justify-content:space-between;}
.privacy-bar a{color:var(--primary);}
.privacy-bar a:hover{color:var(--primary-dark);text-decoration:underline;}

/* ---------- 表单 ---------- */
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;height:44px;border:1.5px solid var(--line);border-radius:10px;
  padding:0 14px;background:#fff;font-size:15px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:98px;padding:12px 14px;line-height:1.6;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:inset 0 0 0 1px var(--primary);
}
.field.is-error input,.field.is-error select{border-color:var(--danger);}
.field-help{font-size:13px;color:var(--ink-3);margin-top:8px;line-height:1.6;}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-2);margin:4px 0 18px;line-height:1.6;}
.check input{width:16px;height:16px;margin:3px 0 0;flex:0 0 auto;accent-color:var(--primary);}

/* ---------- 弹层 ---------- */
.reveal{border:none;border-radius:16px;box-shadow:var(--sh-2);}
.reveal-form{max-width:520px;padding:32px;background:#fff;}
.reveal-form h3{font-size:22px;}
.reveal-form .modal-sub{margin-top:10px;margin-bottom:24px;font-size:15px;color:var(--ink-2);}
.reveal .close-button{color:var(--ink-3);font-size:26px;top:16px;right:18px;}
.reveal .close-button:hover{color:var(--ink);}
@media screen and (max-width:39.9375em){
  .reveal-form{
    position:fixed;left:0;right:0;bottom:0;top:auto;
    width:100%;max-width:100%;margin:0;border-radius:16px 16px 0 0;
    max-height:92vh;overflow-y:auto;padding:26px 20px 30px;
  }
  .reveal-overlay{background:rgba(22,32,46,.45);}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.78);padding:56px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px 24px;margin:0 !important;}
.footer-grid > .cell{width:auto;max-width:none;flex:none;margin-left:0;margin-right:0;}
@media screen and (min-width:40em){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media screen and (min-width:64em){.footer-grid{grid-template-columns:repeat(4,1fr);gap:34px 32px;}}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.site-footer ul{list-style:none;padding:0;display:grid;gap:10px;}
.site-footer a{color:rgba(255,255,255,.78);transition:color .2s ease;}
.site-footer a:hover{color:#fff;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.16);}
.footer-desc{color:rgba(255,255,255,.7);line-height:1.7;margin-bottom:18px;font-size:14px;}
.footer-contact{display:grid;gap:9px;font-size:13.5px;color:rgba(255,255,255,.72);}
.footer-contact i{margin-right:8px;color:var(--accent);font-size:13px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.16);margin-top:44px;padding:20px 0 22px;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:16px;align-items:center;}

/* ---------- 移动端粘性 CTA ---------- */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:60;display:flex;gap:12px;
  padding:10px 16px;background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(22,32,46,.08);
}
.mobile-cta .btn{flex:1;height:44px;font-size:14px;padding:0 12px;}
@media screen and (min-width:40em){.mobile-cta{display:none;}}
@media screen and (max-width:39.9375em){body{padding-bottom:66px;}}