/* roulang page: index */
:root{
  --c-primary:#2456D6;
  --c-primary-dark:#1B41A8;
  --c-primary-soft:#E8EFFD;
  --c-accent:#12B39A;
  --c-point:#FF7A3D;
  --c-ink:#101C33;
  --c-body:#4A5772;
  --c-muted:#8A94AB;
  --c-line:#E4E9F2;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-footer:#0D1A33;
  --r-badge:6px;
  --r-btn:12px;
  --r-card:14px;
  --r-img:12px;
  --r-panel:20px;
  --s1:0 1px 2px rgba(16,28,51,.06);
  --s2:0 6px 18px rgba(16,28,51,.08);
  --s3:0 16px 40px rgba(16,28,51,.12);
  --container:1200px;
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",-apple-system,BlinkMacSystemFont,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-body);
  background:var(--c-bg);
  font-weight:400;
  letter-spacing:0;
}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease,background .22s ease,border-color .22s ease;}
a:hover{color:var(--c-primary-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
h1,h2,h3{color:var(--c-ink);line-height:1.25;letter-spacing:.5px;font-weight:700;}
.num,.kpi-num,.stat-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.sec{padding:var(--sec-y) 0;position:relative;}
.sec-alt{background:var(--c-surface);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{font-size:32px;margin-bottom:14px;}
.sec-desc{font-size:16px;color:var(--c-body);}
.sec-center{text-align:center;margin-left:auto;margin-right:auto;}

/* 顶部公告条 */
.topbar{
  background:var(--c-ink);
  color:#C6D1E6;
  font-size:13px;
  line-height:1.6;
  padding:9px 0;
}
.topbar .container{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.topbar i{color:var(--c-accent);}
.topbar strong{color:#fff;font-weight:500;}
.topbar .topbar-link{color:#fff;margin-left:auto;border-bottom:1px solid rgba(255,255,255,.35);}
.topbar .topbar-link:hover{color:var(--c-accent);border-color:var(--c-accent);}

/* 导航 */
.site-header{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  position:sticky;
  top:0;
  z-index:60;
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--s2);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:26px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:11px;
  background:var(--c-primary);
  color:#fff;font-size:14px;font-weight:700;letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--s1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:15px;color:var(--c-ink);font-weight:700;letter-spacing:.4px;}
.brand-text em{font-style:normal;font-size:11px;color:var(--c-muted);letter-spacing:.6px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  display:inline-flex;align-items:center;
  height:40px;padding:0 14px;
  font-size:14.5px;color:var(--c-body);
  border-radius:8px;border:1px solid transparent;
  position:relative;
}
.nav-link::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:2px;
  background:transparent;transition:background .22s ease;
}
.nav-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.nav-link.active{color:var(--c-primary);font-weight:500;}
.nav-link.active::before{background:var(--c-primary);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-6px;height:3px;border-radius:2px;background:var(--c-primary);
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;letter-spacing:.3px;
  padding:0 24px;height:46px;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--s1);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--s2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--s1);}
.btn-ghost{background:var(--c-surface);color:var(--c-primary);border-color:rgba(36,86,214,.32);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary);transform:translateY(-1px);}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-body);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
  transition:all .22s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(36,86,214,.32);background:var(--c-primary-soft);}
.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;border-radius:2px;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .22s ease;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.nav-drawer-cta{display:none;}

/* Hero */
.hero{
  background:
    radial-gradient(rgba(36,86,214,.055) 1px, transparent 1px) 0 0/22px 22px,
    linear-gradient(180deg,#FBFCFF 0%,var(--c-bg) 100%);
  padding:76px 0 88px;
  position:relative;
  overflow:hidden;
}
.hero .grid-x{align-items:center;}
.hero-copy{padding-right:26px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:500;letter-spacing:.5px;
  padding:7px 14px;border-radius:var(--r-badge);margin-bottom:20px;
}
.eyebrow i{color:var(--c-accent);}
.hero h1{
  font-size:48px;
  line-height:1.22;
  margin-bottom:20px;
  letter-spacing:.8px;
}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{font-size:17px;line-height:1.85;max-width:560px;margin-bottom:30px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px;}
.trust-list{display:flex;flex-wrap:wrap;gap:12px 26px;}
.trust-list li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--c-body);}
.trust-list i{color:var(--c-accent);font-size:15px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;border-radius:var(--r-panel);box-shadow:var(--s3);
  border:1px solid var(--c-line);
}
.float-card{
  position:absolute;left:-18px;bottom:26px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--s3);padding:16px 20px;display:flex;gap:24px;
}
.float-item .fi-num{font-size:24px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.float-item .fi-label{font-size:12.5px;color:var(--c-muted);letter-spacing:.3px;}

/* KPI 面板 */
.kpi-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-panel);
  box-shadow:var(--s2);
  display:grid;
  grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.kpi-item{
  padding:30px 26px;
  border-right:1px solid var(--c-line);
  position:relative;
}
.kpi-item:last-child{border-right:none;}
.kpi-badge{
  position:absolute;right:22px;top:24px;
  font-size:11.5px;color:#0E8F7C;background:rgba(18,179,154,.12);
  padding:3px 9px;border-radius:var(--r-badge);letter-spacing:.4px;
}
.kpi-num{font-size:38px;font-weight:700;color:var(--c-primary);line-height:1.15;letter-spacing:.5px;}
.kpi-num span{font-size:15px;font-weight:500;color:var(--c-muted);margin-left:4px;}
.kpi-label{font-size:13.5px;color:var(--c-muted);margin-top:10px;}

/* 服务矩阵 Bento */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;}
.svc-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--s2);
  padding:24px;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.svc-card:hover{transform:translateY(-2px);box-shadow:var(--s3);border-color:rgba(36,86,214,.25);}
.svc-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.svc-card h3{font-size:20px;margin-bottom:10px;}
.svc-card p{font-size:15px;line-height:1.8;}
.svc-link{margin-top:18px;font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;}
.svc-link i{transition:transform .22s ease;}
.svc-link:hover i{transform:translateX(3px);}
.svc-lead{grid-column:span 6;background:linear-gradient(160deg,#F7FAFF 0%,#FFFFFF 60%);}
.svc-lead h3{font-size:22px;}
.svc-span3{grid-column:span 3;}
.svc-span4{grid-column:span 4;}

/* 分类入口 */
.cat-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.cat-head .sec-head{margin-bottom:0;}
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.cat-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--s2);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--s3);border-color:rgba(36,86,214,.25);}
.cat-cover{overflow:hidden;aspect-ratio:16/10;display:block;}
.cat-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease;}
.cat-card:hover .cat-cover img{transform:scale(1.03);}
.cat-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.4px;padding:4px 10px;border-radius:var(--r-badge);
  background:var(--c-primary-soft);color:var(--c-primary);margin-bottom:12px;align-self:flex-start;
}
.badge-accent{background:rgba(18,179,154,.12);color:#0E8F7C;}
.badge-point{background:rgba(255,122,61,.12);color:#D95F26;}
.cat-body h3{font-size:20px;margin-bottom:10px;}
.cat-body p{font-size:14.5px;line-height:1.8;flex:1;}
.cat-more{margin-top:16px;font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;}

/* 结果对比 */
.compare-wrap{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-panel);
  box-shadow:var(--s2);
  display:grid;grid-template-columns:1fr 1px 1fr;
  overflow:hidden;
}
.compare-col{padding:34px 32px;}
.compare-col h3{font-size:19px;margin-bottom:20px;display:flex;align-items:center;gap:10px;}
.compare-col h3 i{font-size:16px;}
.compare-col.warn h3 i{color:var(--c-point);}
.compare-col.good h3 i{color:var(--c-accent);}
.compare-divider{background:var(--c-line);}
.compare-list li{display:flex;gap:12px;font-size:15px;line-height:1.8;padding:11px 0;border-bottom:1px dashed var(--c-line);}
.compare-list li:last-child{border-bottom:none;}
.compare-list i{font-size:14px;margin-top:6px;flex:0 0 auto;}
.compare-col.warn .compare-list i{color:var(--c-point);}
.compare-col.good .compare-list i{color:var(--c-accent);}
.verdict-bar{
  margin-top:22px;background:var(--c-primary-soft);border-radius:var(--r-card);
  padding:18px 24px;display:flex;align-items:center;gap:12px;
  font-size:15px;color:var(--c-primary-dark);font-weight:500;
}
.verdict-bar i{color:var(--c-primary);}

/* 资讯列表 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:38px;flex-wrap:wrap;}
.news-head .sec-head{margin-bottom:0;}
.text-link{font-size:15px;font-weight:500;display:inline-flex;align-items:center;gap:7px;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--s2);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--s3);border-color:rgba(36,86,214,.25);}
.news-cover{display:block;overflow:hidden;aspect-ratio:16/10;background:var(--c-primary-soft);}
.news-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-muted);margin-bottom:10px;}
.news-title{font-size:17px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a{color:var(--c-ink);}
.news-title a:hover{color:var(--c-primary);}
.news-excerpt{font-size:14px;line-height:1.75;color:var(--c-body);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1;}
.news-lead{grid-column:span 3;display:grid;grid-template-columns:1.05fr 1fr;}
.news-lead .news-cover{aspect-ratio:auto;height:100%;min-height:280px;}
.news-lead .news-body{padding:32px 34px;}
.news-lead .news-title{font-size:23px;-webkit-line-clamp:3;}
.news-lead .news-excerpt{-webkit-line-clamp:3;font-size:15px;}
.empty-tip{
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;color:var(--c-muted);font-size:15px;
}
.empty-tip i{display:block;font-size:28px;color:var(--c-primary);opacity:.55;margin-bottom:14px;}

/* FAQ */
.faq-acc{background:transparent;border-top:1px solid var(--c-line);}
.faq-acc .accordion-item{border-bottom:1px solid var(--c-line);background:transparent;}
.faq-acc .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:16px;font-weight:600;color:var(--c-ink);
  padding:22px 0;border:none;background:transparent;line-height:1.55;
}
.faq-acc .accordion-title:hover,
.faq-acc .accordion-title:focus{background:transparent;color:var(--c-primary);}
.faq-acc .accordion-item.is-active .accordion-title{color:var(--c-primary);}
.faq-acc .accordion-title::before{
  content:"\002B";order:2;flex:0 0 auto;
  width:30px;height:30px;border-radius:50%;
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-body);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:400;line-height:1;margin:0;position:static;
}
.faq-acc .accordion-item.is-active .accordion-title::before{
  content:"\2212";background:var(--c-primary);border-color:var(--c-primary);color:#fff;
}
.faq-acc .accordion-content{padding:0 0 22px;border:none;background:transparent;color:var(--c-body);}
.faq-acc .accordion-content p{font-size:15px;line-height:1.75;max-width:900px;}

/* 联系表单 */
.contact-sec{background:var(--c-surface);}
.contact-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:start;}
.contact-info h2{font-size:32px;margin-bottom:16px;}
.contact-info > p{font-size:16px;margin-bottom:26px;}
.point-list li{display:flex;gap:12px;font-size:15px;line-height:1.8;padding:9px 0;}
.point-list i{color:var(--c-primary);margin-top:6px;font-size:14px;}
.contact-rows{margin-top:26px;border-top:1px solid var(--c-line);padding-top:22px;display:grid;gap:14px;}
.contact-row{display:flex;align-items:center;gap:12px;font-size:14.5px;color:var(--c-body);}
.contact-row i{width:36px;height:36px;border-radius:10px;background:var(--c-primary-soft);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:14px;flex:0 0 auto;}
.form-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--s3);padding:30px;
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-tip{font-size:13.5px;color:var(--c-muted);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--c-body);margin-bottom:7px;letter-spacing:.3px;}
.field label .req{color:var(--c-point);margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:10px;
  background:#FBFCFE;padding:12px 14px;color:var(--c-ink);font-size:15px;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:#fff;
  box-shadow:0 0 0 3px rgba(36,86,214,.14);
}
.field input::placeholder,.field textarea::placeholder{color:#A9B2C6;}
.field .err{display:none;font-size:12px;color:#D9502A;margin-top:6px;}
.field.has-err input,.field.has-err textarea{border-color:#E06B45;}
.field.has-err .err{display:block;}
.form-ok{
  display:none;background:rgba(18,179,154,.1);border:1px solid rgba(18,179,154,.3);
  color:#0E8F7C;border-radius:10px;padding:12px 14px;font-size:14px;margin-bottom:18px;
}
.form-ok.show{display:block;}
.btn-block{width:100%;}
.form-note{font-size:12.5px;color:var(--c-muted);margin-top:14px;text-align:center;}

/* CTA 条 */
.cta-band{
  background:var(--c-ink);
  border-radius:var(--r-panel);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  color:#D6DEEE;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:rgba(36,86,214,.35);filter:blur(10px);
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:8px;position:relative;}
.cta-band p{font-size:15px;position:relative;max-width:620px;}
.cta-band .btn{position:relative;}

/* 页脚 */
.site-footer{background:var(--c-footer);color:#9EACC6;padding:64px 0 0;font-size:14px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;padding-bottom:44px;}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.foot-brand .brand-mark{background:var(--c-primary);}
.foot-brand strong{color:#fff;font-size:15px;letter-spacing:.4px;}
.foot-desc{font-size:14px;line-height:1.8;max-width:330px;}
.foot-contact{margin-top:18px;display:grid;gap:9px;}
.foot-contact span{display:flex;align-items:center;gap:9px;color:#C3CDE2;font-size:13.5px;}
.foot-contact i{color:var(--c-accent);}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.5px;font-weight:500;}
.foot-links{display:grid;gap:11px;}
.foot-links a{color:#9EACC6;font-size:14px;}
.foot-links a:hover{color:var(--c-accent);}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8AA6;
}
.foot-bottom a{color:#9EACC6;}
.foot-bottom a:hover{color:var(--c-accent);}

/* 响应式 */
@media (min-width:1440px){
  :root{--container:1320px;}
}
@media (max-width:1023px){
  :root{--sec-y:72px;}
  .container{padding:0 24px;}
  .hero{padding:56px 0 64px;}
  .hero h1{font-size:36px;}
  .hero-copy{padding-right:0;margin-bottom:36px;}
  .float-card{left:12px;bottom:12px;}
  .kpi-panel{grid-template-columns:repeat(2,1fr);}
  .kpi-item:nth-child(2){border-right:none;}
  .kpi-item:nth-child(1),.kpi-item:nth-child(2){border-bottom:1px solid var(--c-line);}
  .svc-lead,.svc-span3,.svc-span4{grid-column:span 6;}
  .cat-grid,.news-grid{grid-template-columns:repeat(2,1fr);}
  .news-lead{grid-column:span 2;}
  .news-lead .news-cover{min-height:230px;}
  .contact-grid{grid-template-columns:1fr;gap:36px;}
  .cta-band{padding:34px 28px;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  /* 移动导航抽屉 */
  .hamburger{display:inline-flex;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;
    background:var(--c-surface);flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 22px 22px;margin:0;
    box-shadow:-14px 0 40px rgba(16,28,51,.16);
    transform:translateX(104%);transition:transform .28s ease;
    z-index:70;overflow-y:auto;
  }
  body.nav-open .main-nav{transform:translateX(0);}
  body.nav-open{overflow:hidden;}
  .nav-link{height:48px;padding:0 16px;font-size:15.5px;border-radius:10px;}
  .nav-link.active::after{display:none;}
  .nav-drawer-cta{display:block;margin-top:18px;}
  .nav-drawer-cta .btn{width:100%;}
  .nav-right .btn-cta{display:none;}
  .brand-text em{display:none;}
}
@media (max-width:767px){
  :root{--sec-y:56px;}
  .container{padding:0 20px;}
  .sec-head h2{font-size:25px;}
  .hero h1{font-size:31px;letter-spacing:.5px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;}
  .float-card{position:static;margin-top:16px;left:auto;bottom:auto;}
  .kpi-panel{grid-template-columns:1fr;}
  .kpi-item{border-right:none;border-bottom:1px solid var(--c-line);padding:24px 20px;}
  .kpi-item:last-child{border-bottom:none;}
  .kpi-badge{top:20px;right:20px;}
  .svc-lead,.svc-span3,.svc-span4{grid-column:span 12;}
  .cat-grid,.news-grid{grid-template-columns:1fr;}
  .news-lead{grid-column:span 1;display:flex;flex-direction:column;}
  .news-lead .news-cover{min-height:0;aspect-ratio:16/10;}
  .news-lead .news-body{padding:22px;}
  .compare-wrap{grid-template-columns:1fr;grid-template-rows:auto;}
  .compare-divider{height:1px;width:100%;}
  .compare-col{padding:24px 20px;}
  .cta-band{padding:28px 22px;}
  .cta-band h2{font-size:21px;}
  .foot-grid{grid-template-columns:1fr;gap:30px;}
  .topbar{font-size:12.5px;}
  .topbar .topbar-link{margin-left:0;}
}
@media (max-width:520px){
  .hero h1{font-size:28px;}
  .brand-text strong{font-size:13.5px;}
  .cta-band .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --c-primary:#2456D6;
  --c-primary-dark:#1B41A8;
  --c-primary-soft:#E8EFFD;
  --c-accent:#12B39A;
  --c-point:#FF7A3D;
  --c-ink:#101C33;
  --c-body:#4A5772;
  --c-muted:#8A94AB;
  --c-line:#E4E9F2;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-footer:#0D1A33;
  --r-badge:6px;
  --r-btn:12px;
  --r-card:14px;
  --r-img:12px;
  --r-panel:20px;
  --s1:0 1px 2px rgba(16,28,51,.06);
  --s2:0 6px 18px rgba(16,28,51,.08);
  --s3:0 16px 40px rgba(16,28,51,.12);
  --sec-gap:96px;
}

*,*::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","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-body);
  background:var(--c-bg);
  font-weight:400;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.25;letter-spacing:.5px;}
h1{font-size:44px;}
h2{font-size:32px;}
h3{font-size:21px;}
p{margin:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease;}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;display:block;height:auto;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (min-width:1400px){
  .container{max-width:1320px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:500;
  letter-spacing:.3px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--s2);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--s3);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--s1);}
.btn-ghost{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-line);box-shadow:var(--s1);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:rgba(36,86,214,.35);transform:translateY(-1px);box-shadow:var(--s2);}
.btn-ghost:active{transform:translateY(0);}
.btn-block{width:100%;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease,background-color .22s ease;
}
.site-header.scrolled{box-shadow:var(--s2);background:#fff;}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  flex:0 0 42px;
  border-radius:var(--r-btn);
  background:var(--c-primary);
  color:#fff;
  font-weight:700;
  font-size:15px;
  letter-spacing:.5px;
  box-shadow:var(--s2);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:.5px;}
.brand-text em{font-style:normal;font-size:12px;color:var(--c-muted);letter-spacing:.4px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px 0 16px;
  font-size:15px;
  font-weight:500;
  color:var(--c-body);
  border-radius:var(--r-badge);
  letter-spacing:.3px;
}
.nav-link::before{
  content:"";
  position:absolute;
  left:6px;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:16px;
  border-radius:2px;
  background:transparent;
  transition:background-color .22s ease;
}
.nav-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.nav-link:hover::before{background:var(--c-primary);}
.nav-link.active{color:var(--c-primary);}
.nav-link.active::before{background:var(--c-primary);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:3px;
  border-radius:2px;
  background:var(--c-primary);
}
.nav-right{display:flex;align-items:center;gap:10px;}
.btn-cta{min-height:46px;}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  border-radius:var(--r-btn);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-primary);
  box-shadow:var(--s1);
  transition:background-color .22s ease,color .22s ease,transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.icon-btn:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:rgba(36,86,214,.35);transform:translateY(-1px);box-shadow:var(--s2);}
.nav-drawer-cta{display:none;}
.hamburger{
  display:none;
  width:46px;
  height:46px;
  border-radius:var(--r-btn);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  box-shadow:var(--s1);
}
.hamburger span,
.hamburger span::before,
.hamburger span::after{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--c-ink);
  transition:transform .22s ease,opacity .22s ease;
}
.hamburger span{position:relative;}
.hamburger span::before,
.hamburger span::after{content:"";position:absolute;left:0;}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.hamburger[aria-expanded="true"] span{background:transparent;}
.hamburger[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.hamburger[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:20px 0 0;font-size:13px;color:var(--c-muted);}
.breadcrumb a{color:var(--c-body);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{margin:0 8px;color:var(--c-line);}
.breadcrumb .current{color:var(--c-muted);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:linear-gradient(180deg,#F2F6FF 0%,var(--c-bg) 100%);
  padding:56px 0 88px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(36,86,214,.30) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.14;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-badge);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:13px;
  font-weight:500;
  letter-spacing:.4px;
  margin-bottom:20px;
}
.hero h1{font-size:46px;margin-bottom:18px;}
.hero h1 .hl{color:var(--c-primary);}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-body);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.trust-list{display:flex;flex-wrap:wrap;gap:12px 26px;}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-body);}
.trust-item i{color:var(--c-accent);font-size:15px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;
  border-radius:var(--r-panel);
  box-shadow:var(--s3);
  object-fit:cover;
}
.hero-float{
  position:absolute;
  right:-14px;
  bottom:-22px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--s3);
  padding:18px 20px;
  display:flex;
  gap:22px;
  min-width:250px;
}
.hero-float .fitem{display:flex;flex-direction:column;gap:2px;}
.hero-float .fnum{
  font-size:26px;
  font-weight:700;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
  line-height:1.2;
}
.hero-float .flabel{font-size:12px;color:var(--c-muted);letter-spacing:.3px;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-gap) 0;}
.section-alt{background:var(--c-surface);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:500;
  letter-spacing:1px;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:var(--r-badge);
  padding:4px 12px;
  margin-bottom:14px;
}
.section-head h2{font-size:32px;margin-bottom:14px;}
.section-head p{font-size:16px;line-height:1.8;color:var(--c-body);}

/* ---------- 数据速览 ---------- */
.kpi-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-panel);
  box-shadow:var(--s2);
  padding:8px 0;
}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.kpi-cell{
  padding:26px 24px;
  border-right:1px solid var(--c-line);
  position:relative;
}
.kpi-cell:last-child{border-right:none;}
.kpi-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px;}
.kpi-num{
  font-size:36px;
  font-weight:700;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
  line-height:1.1;
}
.kpi-badge{
  font-size:12px;
  font-weight:500;
  color:var(--c-accent);
  background:rgba(18,179,154,.10);
  border-radius:var(--r-badge);
  padding:2px 8px;
  white-space:nowrap;
}
.kpi-label{font-size:13px;color:var(--c-muted);letter-spacing:.3px;}

/* ---------- 步骤流 ---------- */
.steps{position:relative;display:grid;gap:24px;}
.steps::before{
  content:"";
  position:absolute;
  left:32px;
  top:30px;
  bottom:30px;
  width:2px;
  background:linear-gradient(180deg,rgba(36,86,214,.28),rgba(36,86,214,.06));
  z-index:0;
}
.step{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:64px 1fr;
  gap:22px;
  align-items:start;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--s2);
  padding:24px;
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.step:hover{box-shadow:var(--s3);transform:translateY(-2px);border-color:rgba(36,86,214,.25);}
.step-num{
  width:64px;
  height:64px;
  border-radius:50%;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  border:1px solid rgba(36,86,214,.18);
}
.step h3{margin-bottom:8px;font-size:20px;}
.step p{font-size:15px;line-height:1.8;color:var(--c-body);}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  color:var(--c-body);
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-badge);
  padding:3px 10px;
  letter-spacing:.3px;
}
.chip i{color:var(--c-primary);}

/* ---------- 提示卡 ---------- */
.notice{
  background:var(--c-primary-soft);
  border:1px solid rgba(36,86,214,.16);
  border-left:4px solid var(--c-primary);
  border-radius:var(--r-card);
  padding:24px 26px;
  display:grid;
  grid-template-columns:48px 1fr;
  gap:18px;
  align-items:start;
}
.notice-icon{
  width:48px;height:48px;
  border-radius:50%;
  background:#fff;
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:19px;
  box-shadow:var(--s1);
}
.notice h3{font-size:19px;margin-bottom:8px;}
.notice p{font-size:15px;line-height:1.85;color:var(--c-body);}

/* ---------- 对照清单 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;position:relative;}
.compare-col{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-panel);
  box-shadow:var(--s2);
  padding:24px;
}
.compare-col.is-better{border-color:rgba(18,179,154,.30);}
.compare-head{
  display:flex;align-items:center;gap:10px;
  padding-bottom:16px;margin-bottom:18px;
  border-bottom:1px solid var(--c-line);
}
.compare-head i{font-size:16px;}
.compare-col.is-risky .compare-head i{color:var(--c-point);}
.compare-col.is-better .compare-head i{color:var(--c-accent);}
.compare-head h3{font-size:18px;}
.compare-item{display:grid;grid-template-columns:24px 1fr;gap:10px;padding:14px 0;border-bottom:1px dashed var(--c-line);}
.compare-item:last-child{border-bottom:none;padding-bottom:0;}
.compare-item i{margin-top:5px;font-size:14px;}
.compare-col.is-risky .compare-item i{color:var(--c-point);}
.compare-col.is-better .compare-item i{color:var(--c-accent);}
.compare-item strong{display:block;font-size:15px;font-weight:500;color:var(--c-ink);margin-bottom:2px;letter-spacing:.3px;}
.compare-item span{font-size:14px;line-height:1.75;color:var(--c-body);}
.compare-divider{
  position:absolute;left:50%;top:12%;bottom:12%;width:1px;background:var(--c-line);
  transform:translateX(-50%);
}
.compare-note{
  margin-top:28px;
  background:var(--c-primary-soft);
  border-radius:var(--r-card);
  padding:16px 22px;
  font-size:14px;
  color:var(--c-body);
  display:flex;align-items:center;gap:10px;
}
.compare-note i{color:var(--c-primary);}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-panel);
  box-shadow:var(--s2);
  padding:34px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.cta-band h2{font-size:24px;margin-bottom:8px;}
.cta-band p{font-size:15px;color:var(--c-body);}
.cta-band-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);color:#C7D1E6;padding:68px 0 0;margin-top:0;}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand strong{color:#fff;font-size:17px;letter-spacing:.5px;}
.foot-desc{font-size:14px;line-height:1.85;color:#93A2C0;margin-bottom:20px;max-width:340px;}
.foot-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#93A2C0;}
.foot-contact i{color:var(--c-accent);margin-right:8px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:500;margin-bottom:18px;letter-spacing:.5px;}
.foot-links{display:flex;flex-direction:column;gap:12px;}
.foot-links a{font-size:14px;color:#93A2C0;transition:color .22s ease;}
.foot-links a:hover{color:var(--c-accent);}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:#7C8BAA;
}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .container{max-width:1200px;}
}
@media (max-width:1199px){
  h1{font-size:40px;}
  .hero h1{font-size:40px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .hamburger{display:inline-flex;}
  .main-nav{
    position:fixed;
    top:0;
    right:0;
    width:300px;
    max-width:86vw;
    height:100vh;
    background:var(--c-surface);
    box-shadow:var(--s3);
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:88px 20px 28px;
    margin-left:0;
    transform:translateX(105%);
    transition:transform .28s ease;
    overflow-y:auto;
    z-index:70;
  }
  .main-nav.open{transform:translateX(0);}
  .nav-link{padding:0 14px;min-height:48px;font-size:16px;}
  .nav-link.active::after{left:14px;right:14px;}
  .nav-drawer-cta{display:block;margin-top:20px;padding-top:20px;border-top:1px solid var(--c-line);}
  .nav-drawer-cta .btn{width:100%;}
  .hero{padding:40px 0 64px;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:36px;}
  .hero-float{position:static;margin-top:18px;width:100%;justify-content:space-between;}
  .kpi-grid{grid-template-columns:repeat(2,1fr);}
  .kpi-cell:nth-child(2){border-right:none;}
  .kpi-cell:nth-child(1),.kpi-cell:nth-child(2){border-bottom:1px solid var(--c-line);}
  .compare-grid{grid-template-columns:1fr;}
  .compare-divider{display:none;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px;}
  .cta-band-actions{width:100%;}
  .cta-band-actions .btn{flex:1 1 auto;}
  :root{--sec-gap:72px;}
  .section-head h2{font-size:28px;}
}
@media (max-width:639px){
  .container{padding:0 20px;}
  body{font-size:16px;}
  h1{font-size:30px;}
  h2{font-size:26px;}
  h3{font-size:19px;}
  .hero{padding:32px 0 52px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .brand-text strong{font-size:15px;}
  .brand-text em{display:none;}
  .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:14px;}
  .kpi-grid{grid-template-columns:1fr;}
  .kpi-cell{border-right:none;border-bottom:1px solid var(--c-line);}
  .kpi-cell:last-child{border-bottom:none;}
  .step{grid-template-columns:1fr;gap:16px;padding:20px;}
  .step-num{width:52px;height:52px;font-size:19px;}
  .steps::before{display:none;}
  .notice{grid-template-columns:1fr;padding:20px;}
  .section-head h2{font-size:24px;}
  .cta-band{padding:24px 20px;}
  .cta-band-actions{flex-direction:column;}
  .cta-band-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  :root{--sec-gap:56px;}
}

/* roulang page: article */
:root{
  --c-primary:#2456D6;
  --c-primary-dark:#1B41A8;
  --c-primary-soft:#E8EFFD;
  --c-accent:#12B39A;
  --c-point:#FF7A3D;
  --c-ink:#101C33;
  --c-body:#4A5772;
  --c-muted:#8A94AB;
  --c-line:#E4E9F2;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-footer:#0D1A33;
  --r-badge:6px;
  --r-btn:12px;
  --r-card:14px;
  --r-img:12px;
  --r-panel:20px;
  --sh-1:0 1px 2px rgba(16,28,51,.06);
  --sh-2:0 6px 18px rgba(16,28,51,.08);
  --sh-3:0 16px 40px rgba(16,28,51,.12);
  --sec-y:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --font-num:"DIN Alternate","Roboto Mono",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-body);
  background:var(--c-bg);
  font-weight:400;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--c-primary-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-weight:700;line-height:1.25;letter-spacing:.5px;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (min-width:1440px){.container{max-width:1320px;}}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:15px;font-weight:700;letter-spacing:.5px;
}
.brand-text strong{display:block;font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:.5px;line-height:1.2;}
.brand-text em{display:block;font-style:normal;font-size:12px;color:var(--c-muted);margin-top:3px;letter-spacing:.2px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px 0 20px;
  font-size:15px;color:var(--c-body);border-radius:10px;
  transition:background .22s ease,color .22s ease;
  white-space:nowrap;
}
.nav-link::before{
  content:"";position:absolute;left:8px;top:50%;transform:translateY(-50%);
  width:3px;height:14px;border-radius:2px;background:var(--c-line);
  transition:height .22s ease,background .22s ease;
}
.nav-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.nav-link:hover::before{background:var(--c-primary);height:20px;}
.nav-link.active{color:var(--c-primary);font-weight:500;}
.nav-link.active::before{background:var(--c-primary);height:20px;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:3px;border-radius:2px;background:var(--c-primary);
}
.nav-drawer-cta{display:none;}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.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:500;letter-spacing:.3px;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:var(--c-surface);color:var(--c-primary);border-color:rgba(36,86,214,.35);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px);}
.btn-on-dark{background:#fff;color:var(--c-footer);}
.btn-on-dark:hover{background:var(--c-accent);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.icon-btn{
  width:46px;height:46px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-body);
  display:inline-flex;align-items:center;justify-content:center;
  transition:.22s ease;
}
.icon-btn:hover{border-color:rgba(36,86,214,.35);color:var(--c-primary);background:var(--c-primary-soft);}
.hamburger{
  display:none;width:46px;height:46px;border:1px solid var(--c-line);
  border-radius:var(--r-btn);background:var(--c-surface);
  align-items:center;justify-content:center;cursor:pointer;
}
.hamburger span{position:relative;display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:.22s ease;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.hamburger[aria-expanded="true"] span{background:transparent;}
.hamburger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.hamburger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

/* ============ 面包屑 + 文章头 ============ */
.article-hero{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  padding:24px 0 40px;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);margin-bottom:22px;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C3CBDB;}
.breadcrumb .current{color:var(--c-muted);}
.post-head{max-width:820px;}
.post-badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-badge);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:500;margin-bottom:16px;
}
.post-head h1{
  font-size:44px;line-height:1.25;letter-spacing:1px;color:var(--c-ink);
  margin-bottom:18px;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:14px;color:var(--c-muted);
}
.post-meta span{display:inline-flex;align-items:center;gap:7px;}
.post-meta i{color:var(--c-primary);font-size:13px;}
.post-meta .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--c-body);}

/* ============ 主体布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:40px;padding:56px 0 88px;align-items:start;
}
.article-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-2);
  padding:36px;
}
.article-body{max-width:760px;margin:0 auto;}
.article-body p{font-size:17px;line-height:1.85;color:var(--c-body);margin-bottom:18px;}
.article-body h2{
  position:relative;font-size:27px;line-height:1.3;color:var(--c-ink);
  margin:40px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:20px;color:var(--c-ink);margin:28px 0 12px;}
.article-body h4{font-size:17px;color:var(--c-ink);margin:22px 0 10px;}
.article-body blockquote{
  margin:24px 0;padding:20px;
  border-left:3px solid var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--c-body);
}
.article-body blockquote p{margin:0;font-size:16px;}
.article-body img{border-radius:var(--r-img);margin:24px auto;width:100%;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  text-align:center;font-size:13px;color:var(--c-muted);margin-top:10px;
}
.article-body ul,.article-body ol{margin:0 0 18px 22px;padding-left:6px;}
.article-body li{font-size:17px;line-height:1.8;color:var(--c-body);margin-bottom:8px;}
.article-body table{
  width:100%;border-collapse:collapse;display:block;overflow-x:auto;
  margin:24px 0;font-size:15px;
}
.article-body th,.article-body td{
  border:1px solid var(--c-line);padding:12px 14px;text-align:left;white-space:nowrap;
}
.article-body th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:600;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:32px 0;}
.article-body strong{color:var(--c-ink);font-weight:600;}

.empty-state{
  text-align:center;padding:56px 20px;
}
.empty-state i{font-size:38px;color:var(--c-primary);}
.empty-state h2{font-size:24px;margin:18px 0 10px;}
.empty-state p{font-size:15px;color:var(--c-muted);max-width:520px;margin:0 auto 24px;line-height:1.8;}

/* ============ 标签行 ============ */
.tag-row{
  max-width:760px;margin:36px auto 0;padding-top:24px;
  border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
}
.tag-row .label{font-size:14px;color:var(--c-muted);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;
  border-radius:999px;background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;transition:.22s ease;
}
.tag:hover{background:var(--c-primary);color:#fff;transform:translateY(-1px);}

/* ============ 翻页浏览 ============ */
.page-nav{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;
  margin-top:28px;
}
.page-nav a{
  display:block;padding:20px;border:1px solid var(--c-line);border-radius:var(--r-card);
  background:var(--c-surface);box-shadow:var(--sh-1);transition:.22s ease;
}
.page-nav a:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(36,86,214,.25);}
.page-nav .dir{font-size:13px;color:var(--c-muted);display:block;margin-bottom:6px;}
.page-nav .ttl{font-size:16px;font-weight:500;color:var(--c-ink);display:block;line-height:1.5;}

/* ============ 侧栏 ============ */
.aside-sticky{position:sticky;top:96px;}
.aside-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:24px;margin-bottom:20px;
}
.aside-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.aside-card h3 i{color:var(--c-primary);font-size:14px;}
.toc-list{list-style:none;margin:0;padding:0;max-height:340px;overflow-y:auto;}
.toc-list a{
  display:block;padding:8px 12px;border-left:2px solid var(--c-line);
  font-size:14px;line-height:1.6;color:var(--c-body);transition:.2s ease;
}
.toc-list a:hover{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-soft);}
.aside-cta{
  background:var(--c-primary-soft);border:1px solid rgba(36,86,214,.16);
  border-radius:var(--r-card);padding:24px;
}
.aside-cta h3{font-size:17px;margin-bottom:10px;}
.aside-cta p{font-size:14px;line-height:1.8;color:var(--c-body);margin-bottom:16px;}
.aside-cta .btn{width:100%;}
.aside-list{list-style:none;margin:0;padding:0;}
.aside-list li{font-size:14px;color:var(--c-body);padding:8px 0;border-bottom:1px dashed var(--c-line);display:flex;justify-content:space-between;gap:12px;}
.aside-list li:last-child{border-bottom:none;}
.aside-list .v{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--c-primary);font-weight:700;}

/* ============ 相关推荐 ============ */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:26px;
}
.section-head h2{font-size:30px;letter-spacing:.8px;}
.section-head p{font-size:14px;color:var(--c-muted);margin-top:8px;}
.text-link{font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.text-link i{font-size:12px;transition:transform .22s ease;}
.text-link:hover i{transform:translateX(3px);}
.related-section{padding-top:8px;}
.rel-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(36,86,214,.25);}
.rel-cover{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg);}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-cover img{transform:scale(1.03);}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body .kicker{font-size:12px;color:var(--c-accent);font-weight:600;letter-spacing:.6px;}
.rel-body h3{font-size:17px;line-height:1.5;color:var(--c-ink);}
.rel-body p{font-size:14px;line-height:1.75;color:var(--c-muted);}
.rel-body .foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-muted);padding-top:12px;border-top:1px solid var(--c-line);
}
.rel-body .foot .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ============ 底部 CTA 面板 ============ */
.cta-panel{
  background:var(--c-footer);border-radius:var(--r-panel);
  padding:44px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;margin:56px auto 0;max-width:1200px;
}
.cta-panel h2{color:#fff;font-size:28px;letter-spacing:.8px;}
.cta-panel p{color:#A9B6CE;font-size:15px;line-height:1.8;margin-top:10px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-footer);color:#C9D3E6;padding:60px 0 0;margin-top:96px;}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand strong{color:#fff;font-size:16px;letter-spacing:.5px;}
.foot-desc{font-size:14px;line-height:1.85;color:#94A2BC;max-width:340px;}
.foot-contact{margin-top:18px;}
.foot-contact span{display:block;font-size:14px;color:#94A2BC;margin-top:8px;}
.foot-contact i{color:var(--c-accent);margin-right:8px;}
.site-footer h4{color:#fff;font-size:15px;margin:0 0 16px;letter-spacing:.6px;}
.foot-links a{display:block;font-size:14px;color:#94A2BC;padding:6px 0;transition:.2s ease;}
.foot-links a:hover{color:var(--c-accent);}
.foot-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:#7E8CA8;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .post-head h1{font-size:38px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:28px;}
  .article-card{padding:28px;}
  .cta-panel{padding:36px;gap:24px;}
}
@media (max-width:1023px){
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;
    width:min(84vw,340px);
    background:var(--c-surface);
    flex-direction:column;align-items:stretch;
    padding:92px 20px 26px;gap:2px;margin-left:0;
    transform:translateX(105%);
    transition:transform .28s ease;
    box-shadow:var(--sh-3);
    overflow-y:auto;z-index:90;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{font-size:16px;min-height:48px;padding:0 14px 0 24px;}
  .nav-drawer-cta{display:block;margin-top:auto;padding-top:22px;}
  .nav-drawer-cta .btn{width:100%;}
  .hamburger{display:inline-flex;}
  .btn-cta{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding:40px 0 72px;}
  .aside-sticky{position:static;margin-top:28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-panel{flex-direction:column;align-items:flex-start;}
  .site-footer{margin-top:72px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .post-head h1{font-size:32px;}
  .article-card{padding:22px;border-radius:var(--r-card);}
  .article-body p,.article-body li{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:22px;margin:32px 0 14px;}
  .article-body h3{font-size:18px;}
  .page-nav{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:24px;}
  .cta-panel{padding:28px;border-radius:var(--r-card);}
  .cta-panel h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .brand-text em{display:none;}
  .post-head h1{font-size:28px;}
  .post-meta{gap:8px 14px;font-size:13px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#2456D6;
  --c-primary-dark:#1B41A8;
  --c-primary-soft:#E8EFFD;
  --c-accent:#12B39A;
  --c-point:#FF7A3D;
  --c-ink:#101C33;
  --c-body:#4A5772;
  --c-muted:#8A94AB;
  --c-line:#E4E9F2;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-footer:#0D1A33;
  --r-badge:6px;
  --r-btn:12px;
  --r-card:14px;
  --r-img:12px;
  --r-panel:20px;
  --s1:0 1px 2px rgba(16,28,51,.06);
  --s2:0 6px 18px rgba(16,28,51,.08);
  --s3:0 16px 40px rgba(16,28,51,.12);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Roboto Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-body);
  background:var(--c-bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--c-primary-dark)}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:16px}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
@media (min-width:1440px){.container{max-width:1320px}}
.section{padding:56px 0}
@media (min-width:640px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-sm{padding:44px 0}
@media (min-width:1024px){.section-sm{padding:64px 0}}
h1,h2,h3{color:var(--c-ink);line-height:1.25;letter-spacing:.5px;font-weight:700}
h1{font-size:30px}
h2{font-size:26px}
h3{font-size:20px;letter-spacing:.4px}
@media (min-width:640px){h1{font-size:38px}h2{font-size:30px}}
@media (min-width:1024px){h1{font-size:46px}h2{font-size:32px}}
p{font-size:16px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- buttons ---------- */
.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:500;letter-spacing:.5px;
  border:1px solid transparent;background:transparent;color:var(--c-ink);
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  text-align:center;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--s2)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--s3)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--s1)}
.btn-ghost{background:var(--c-surface);color:var(--c-primary);border-color:rgba(36,86,214,.32);box-shadow:var(--s1)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:rgba(36,86,214,.5);transform:translateY(-1px);box-shadow:var(--s2)}
.btn-block{width:100%}
.icon-btn{
  width:46px;height:46px;border-radius:var(--r-btn);display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-body);transition:all .22s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(36,86,214,.35);background:var(--c-primary-soft)}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-radius:var(--r-badge);
  font-size:13px;line-height:1;background:var(--c-primary-soft);color:var(--c-primary-dark);font-weight:500;
}
.badge-accent{background:rgba(18,179,154,.12);color:#0B7E6C}
.badge-point{background:rgba(255,122,61,.12);color:#D2571B}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-body);font-size:14px;
}
.chip i{color:var(--c-accent);font-size:12px}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);transition:box-shadow .22s ease,background-color .22s ease;
}
.site-header.scrolled{box-shadow:var(--s2);background:#fff}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:44px;height:44px;border-radius:12px;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;letter-spacing:1px;
  box-shadow:var(--s2);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{color:var(--c-ink);font-size:17px;font-weight:700;letter-spacing:.6px}
.brand-text em{font-style:normal;font-size:12px;color:var(--c-muted);letter-spacing:.4px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:10px;
  color:var(--c-body);font-size:15px;font-weight:500;white-space:nowrap;transition:all .22s ease;
}
.nav-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:2px;background:var(--c-primary);transition:height .22s ease;
}
.nav-link:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.nav-link:hover::before{height:18px}
.nav-link.active{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-link.active::before{height:20px}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-16px;height:3px;border-radius:3px;background:var(--c-primary);
}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-drawer-cta{display:none}
.hamburger{
  display:none;width:46px;height:46px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:var(--c-surface);position:relative;
}
.hamburger span,.hamburger span::before,.hamburger span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--c-ink);
  transform:translateX(-50%);transition:transform .22s ease,opacity .22s ease;
}
.hamburger span{top:22px}
.hamburger span::before{content:"";top:-6px;left:0;transform:none}
.hamburger span::after{content:"";top:6px;left:0;transform:none}
.hamburger[aria-expanded="true"] span{background:transparent}
.hamburger[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.hamburger[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

@media (max-width:1023px){
  .hamburger{display:inline-flex}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;margin:0;
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 20px 24px;box-shadow:var(--s3);transform:translateX(105%);
    transition:transform .26s ease;overflow-y:auto;z-index:70;
  }
  .main-nav.open{transform:translateX(0)}
  .nav-link{height:48px;border-radius:10px;padding:0 14px;font-size:16px}
  .nav-link.active::after{display:none}
  .nav-link.active::before{height:20px}
  .nav-drawer-cta{display:block;margin-top:auto;padding-top:20px;border-top:1px solid var(--c-line)}
  .nav-drawer-cta .btn{width:100%}
  .btn-cta{display:none}
  .nav-mask{
    position:fixed;inset:0;background:rgba(13,26,51,.42);opacity:0;visibility:hidden;
    transition:opacity .26s ease,visibility .26s ease;z-index:65;
  }
  .nav-mask.show{opacity:1;visibility:visible}
}
@media (min-width:1024px){.nav-mask{display:none}}

/* ---------- breadcrumb ---------- */
.crumb{font-size:13px;color:var(--c-muted);padding:18px 0 0;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumb a{color:var(--c-body)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:#C6CEDF}
.crumb .cur{color:var(--c-muted)}

/* ---------- page head ---------- */
.page-head{
  position:relative;overflow:hidden;margin-top:16px;border-radius:var(--r-panel);
  background:
    radial-gradient(rgba(36,86,214,.10) 1px,transparent 1px) 0 0/18px 18px,
    linear-gradient(180deg,#F3F7FF 0%,#FFFFFF 100%);
  border:1px solid var(--c-line);
  box-shadow:var(--s1);
}
.page-head-inner{
  display:grid;grid-template-columns:1fr;gap:24px;padding:28px 22px;
}
@media (min-width:768px){
  .page-head-inner{grid-template-columns:1.35fr .85fr;align-items:center;padding:38px 34px;gap:32px}
}
.page-head h1{font-size:28px;margin-bottom:14px}
@media (min-width:640px){.page-head h1{font-size:36px}}
@media (min-width:1024px){.page-head h1{font-size:42px}}
.page-head .lede{font-size:16px;color:var(--c-body);max-width:640px}
.page-head .chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.page-head-media{position:relative}
.page-head-media img{
  width:100%;border-radius:var(--r-img);border:1px solid var(--c-line);box-shadow:var(--s2);
  aspect-ratio:16/10;object-fit:cover;
}
.float-card{
  position:absolute;left:-6px;bottom:-14px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--s3);padding:14px 18px;display:flex;gap:22px;
}
.float-card div{display:flex;flex-direction:column;gap:2px}
.float-card strong{font-family:var(--font-num);font-size:22px;color:var(--c-primary);line-height:1.1}
.float-card span{font-size:12px;color:var(--c-muted)}
@media (max-width:767px){.float-card{position:static;margin-top:12px;left:0}}

/* ---------- two column layout ---------- */
.layout-2col{margin-top:40px}
.anchor-col{position:relative}
.anchor-nav{
  position:sticky;top:96px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--s1);padding:18px;
}
.anchor-head{font-size:13px;color:var(--c-muted);letter-spacing:.6px;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.anchor-head i{color:var(--c-primary)}
.anchor-nav a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  color:var(--c-body);font-size:14.5px;font-weight:500;line-height:1.4;transition:all .22s ease;
}
.anchor-nav a .idx{
  font-family:var(--font-num);font-size:12px;color:var(--c-muted);min-width:18px;
}
.anchor-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.anchor-nav a.active{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.anchor-nav a.active .idx{color:var(--c-primary)}
.anchor-foot{
  margin-top:14px;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted);line-height:1.7;
}
@media (max-width:1023px){
  .layout-2col{margin-top:26px}
  .anchor-nav{
    position:static;display:flex;gap:8px;overflow-x:auto;padding:12px;margin-bottom:22px;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
  }
  .anchor-nav::-webkit-scrollbar{display:none}
  .anchor-nav a{white-space:nowrap;background:var(--c-bg);flex:0 0 auto}
  .anchor-head,.anchor-foot{display:none}
}

/* ---------- groups & cards ---------- */
.group{margin-bottom:44px}
.group:last-child{margin-bottom:0}
.group-head{margin-bottom:20px}
.group-index{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;
  background:var(--c-primary-soft);color:var(--c-primary);font-family:var(--font-num);font-size:14px;font-weight:700;
  margin-bottom:12px;
}
.group-head h2{font-size:22px;margin-bottom:8px}
@media (min-width:640px){.group-head h2{font-size:26px}}
.group-head p{font-size:15px;color:var(--c-muted);max-width:720px}
.card-row{align-items:flex-start}
.card-row > [class*="cell"]{margin-bottom:20px}
.svc-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--s2);padding:24px;height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.svc-card:hover{transform:translateY(-2px);box-shadow:var(--s3);border-color:rgba(36,86,214,.25)}
.svc-icon{
  width:46px;height:46px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.svc-card h3{font-size:19px;margin-bottom:10px}
.svc-card > p{font-size:15px;line-height:1.8;color:var(--c-body)}
.svc-list{margin-top:14px;display:flex;flex-direction:column;gap:9px}
.svc-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-body);line-height:1.7}
.svc-list li i{color:var(--c-accent);font-size:12px;margin-top:7px;flex:0 0 auto}
.svc-more{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:14.5px;font-weight:500;color:var(--c-primary);
}
.svc-more i{transition:transform .22s ease;font-size:12px}
.svc-more:hover i{transform:translateX(4px)}
.svc-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

/* ---------- data strip ---------- */
.data-strip{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-panel);
  box-shadow:var(--s2);padding:22px 24px;margin:6px 0 34px;position:relative;overflow:hidden;
}
.data-strip::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c-accent);
}
.data-strip-head{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-muted);margin-bottom:14px}
.data-strip-head .dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(18,179,154,.16)}
.data-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:640px){.data-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.data-grid{grid-template-columns:repeat(4,1fr)}}
.data-item{display:flex;flex-direction:column;gap:4px;padding-left:16px;border-left:1px solid var(--c-line)}
.data-item strong{font-family:var(--font-num);font-size:28px;color:var(--c-primary);line-height:1.1;font-weight:700}
.data-item span{font-size:13px;color:var(--c-muted)}
.data-item em{font-style:normal;font-size:12px;color:var(--c-accent)}

/* ---------- cta bar ---------- */
.cta-bar{
  background:linear-gradient(135deg,#F3F7FF 0%,#E8EFFD 100%);
  border:1px solid rgba(36,86,214,.18);border-radius:var(--r-panel);
  padding:28px 24px;display:flex;flex-direction:column;gap:18px;box-shadow:var(--s1);
}
@media (min-width:768px){
  .cta-bar{flex-direction:row;align-items:center;justify-content:space-between;padding:30px 34px;gap:28px}
}
.cta-bar h2{font-size:21px;margin-bottom:8px}
@media (min-width:640px){.cta-bar h2{font-size:24px}}
.cta-bar p{font-size:15px;color:var(--c-body);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-title{text-align:center;margin-bottom:28px}
.faq-title p{font-size:15px;color:var(--c-muted);margin-top:10px}
ul.accordion.faq-list{margin:0;background:transparent;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--s1)}
.faq-list .accordion-item{border-bottom:1px solid var(--c-line)}
.faq-list .accordion-item:last-child{border-bottom:0}
.faq-list .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:var(--c-surface);color:var(--c-ink);
  font-size:16px;font-weight:600;letter-spacing:.4px;border:0;
}
.faq-list .accordion-title:hover{background:#FAFBFE;color:var(--c-primary)}
.faq-list .accordion-title span{line-height:1.6}
.faq-list .accordion-title::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--c-line);color:var(--c-primary);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;font-weight:400;
  transition:all .22s ease;
}
.faq-list .accordion-item.is-active .accordion-title,
.faq-list .accordion-title[aria-expanded="true"]{color:var(--c-primary);background:#FAFBFE}
.faq-list .accordion-item.is-active .accordion-title::after,
.faq-list .accordion-title[aria-expanded="true"]::after{
  content:"−";background:var(--c-primary);color:#fff;border-color:var(--c-primary);
}
.faq-list .accordion-content{padding:0 22px 18px;background:#FAFBFE;border:0!important}
.faq-list .accordion-content p{font-size:15px;line-height:1.75;color:var(--c-body)}
.faq-list .accordion-content p + p{margin-top:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--c-footer);color:#C7D0E2;margin-top:56px;padding:56px 0 0}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand .brand-mark{width:40px;height:40px;font-size:14px;border-radius:10px}
.foot-brand strong{color:#fff;font-size:17px;letter-spacing:.6px}
.foot-desc{font-size:14px;line-height:1.85;color:#93A0BC;max-width:340px}
.foot-contact{margin-top:18px;display:flex;flex-direction:column;gap:10px;font-size:14px;color:#93A0BC}
.foot-contact i{color:var(--c-accent);margin-right:8px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.6px}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{color:#A9B5CE;font-size:14px;transition:color .22s ease,transform .22s ease;display:inline-block}
.foot-links a:hover{color:var(--c-accent);transform:translateX(3px)}
.foot-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#7E8AA6;
}

/* roulang page: category3 */
:root{
  --c-primary:#2456D6;
  --c-primary-dark:#1B41A8;
  --c-primary-soft:#E8EFFD;
  --c-accent:#12B39A;
  --c-point:#FF7A3D;
  --c-ink:#101C33;
  --c-body:#4A5772;
  --c-muted:#8A94AB;
  --c-line:#E4E9F2;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-footer:#0D1A33;
  --r-badge:6px;
  --r-btn:12px;
  --r-card:14px;
  --r-img:12px;
  --r-panel:20px;
  --s1:0 1px 2px rgba(16,28,51,.06);
  --s2:0 6px 18px rgba(16,28,51,.08);
  --s3:0 16px 40px rgba(16,28,51,.12);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-num:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::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:1.8;
  color:var(--c-body);
  background:var(--c-bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.25;letter-spacing:.5px;font-weight:700;}
p{margin:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease;}
img{max-width:100%;display:block;height:auto;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (min-width:1440px){.container{max-width:1320px;}}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.scrolled{box-shadow:var(--s2);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:44px;height:44px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;
  display:grid;place-items:center;
  font-family:var(--font-num);font-weight:700;font-size:16px;letter-spacing:.5px;
  box-shadow:var(--s1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;color:var(--c-ink);font-weight:700;letter-spacing:.5px;}
.brand-text em{font-style:normal;font-size:12px;color:var(--c-muted);margin-top:2px;letter-spacing:.5px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 16px;border-radius:10px;
  font-size:15px;color:var(--c-body);font-weight:500;
}
.nav-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.nav-link.active{color:var(--c-primary);}
.nav-link.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:3px;
  border-radius:3px;background:var(--c-primary);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-drawer-cta{display:none;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;letter-spacing:.5px;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--s1);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--s2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--s1);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:rgba(36,86,214,.35);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:rgba(36,86,214,.55);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--c-primary);box-shadow:var(--s2);}
.btn-light:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.75);transform:translateY(-1px);}
.btn-cta{min-height:46px;padding:0 24px;}
.icon-btn{
  width:46px;height:46px;border-radius:var(--r-btn);
  display:inline-grid;place-items:center;
  border:1px solid var(--c-line);color:var(--c-body);background:#fff;
  transition:all .22s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(36,86,214,.35);background:var(--c-primary-soft);}
.hamburger{
  display:none;width:46px;height:46px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;
}
.hamburger span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);position:relative;
}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--c-ink);
  transition:transform .22s ease,top .22s ease;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.hamburger.open span{background:transparent;}
.hamburger.open span::before{top:0;transform:rotate(45deg);}
.hamburger.open span::after{top:0;transform:rotate(-45deg);}

/* ============ Breadcrumb ============ */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--c-muted);padding:20px 0 0;
}
.breadcrumb a{color:var(--c-body);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-line);}
.breadcrumb .current{color:var(--c-muted);}

/* ============ Page head ============ */
.page-head{
  position:relative;
  padding:28px 0 64px;
  background:
    radial-gradient(rgba(36,86,214,.10) 1px, transparent 1px) 0 0/18px 18px,
    linear-gradient(180deg,#F5F8FE 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-head .container{position:relative;z-index:2;}
.page-head h1{
  font-size:44px;max-width:900px;margin-top:22px;letter-spacing:.8px;
}
.page-head h1 .hl{color:var(--c-primary);}
.page-lead{
  font-size:17px;color:var(--c-body);max-width:760px;margin-top:18px;line-height:1.8;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:6px;
  background:#fff;border:1px solid var(--c-line);
  font-size:13px;color:var(--c-body);letter-spacing:.5px;
  box-shadow:var(--s1);
}
.chip i{color:var(--c-primary);font-size:12px;}

/* ============ Section base ============ */
.section{padding:96px 0;}
.section.alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;letter-spacing:1px;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:var(--r-badge);
  padding:6px 12px;margin-bottom:16px;
}
.eyebrow i{font-size:12px;}
.section-head h2{font-size:32px;letter-spacing:.8px;}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-body);}
.section-head .accent-line{width:48px;height:4px;border-radius:2px;background:var(--c-accent);margin-top:18px;}

/* ============ Compare cards ============ */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.compare-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--s2);
  padding:24px;
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.compare-card:hover{
  box-shadow:var(--s3);transform:translateY(-2px);
  border-color:rgba(36,86,214,.25);
}
.compare-card.wide{grid-column:1 / -1;}
.compare-head{display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.compare-head .idx{
  width:34px;height:34px;flex-shrink:0;border-radius:var(--r-badge);
  background:var(--c-primary-soft);color:var(--c-primary);
  display:grid;place-items:center;font-family:var(--font-num);font-weight:700;font-size:14px;
}
.compare-head h3{font-size:20px;letter-spacing:.5px;}
.compare-body{display:grid;grid-template-columns:1fr 1fr;gap:0;}
.compare-col{padding-right:20px;}
.compare-col + .compare-col{padding-left:20px;padding-right:0;border-left:1px solid var(--c-line);}
.compare-col h4{
  font-size:13px;font-weight:500;letter-spacing:1px;margin-bottom:12px;
  display:inline-flex;align-items:center;gap:8px;padding:5px 10px;border-radius:var(--r-badge);
}
.compare-col.is-state h4{color:var(--c-body);background:#F1F4FA;}
.compare-col.is-do h4{color:#0E8E7C;background:#E4F7F3;}
.compare-col p{font-size:15px;line-height:1.8;color:var(--c-body);}
.mini-list{margin-top:14px;display:flex;flex-direction:column;gap:10px;}
.mini-list li{
  position:relative;padding-left:22px;font-size:14px;line-height:1.7;color:var(--c-body);
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--c-line);
}
.compare-col.is-do .mini-list li::before{background:var(--c-accent);}

/* ============ KPI strip ============ */
.kpi-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-panel);
  box-shadow:var(--s2);
  display:grid;grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.kpi-item{padding:28px 24px;border-right:1px solid var(--c-line);position:relative;}
.kpi-item:last-child{border-right:none;}
.kpi-top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;}
.kpi-value{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:38px;font-weight:700;color:var(--c-primary);line-height:1.1;letter-spacing:0;
}
.kpi-value small{font-size:16px;color:var(--c-muted);font-weight:500;margin-left:4px;}
.kpi-badge{
  display:inline-flex;align-items:center;gap:4px;
  font-size:12px;color:#0E8E7C;background:#E4F7F3;
  border-radius:var(--r-badge);padding:3px 8px;white-space:nowrap;
}
.kpi-label{margin-top:12px;font-size:13px;color:var(--c-muted);line-height:1.6;}

/* ============ Quote block ============ */
.quote-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;}
.quote-card{
  background:var(--c-primary-soft);
  border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-card) var(--r-card) 0;
  padding:28px 28px 28px 30px;
}
.quote-card .q-title{
  font-size:13px;font-weight:500;letter-spacing:1px;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
}
.quote-card p{font-size:17px;line-height:1.85;color:var(--c-ink);}
.quote-card p + p{margin-top:16px;color:var(--c-body);font-size:16px;}
.quote-note{
  margin-top:22px;padding-top:18px;border-top:1px solid rgba(36,86,214,.18);
  display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:var(--c-body);
}
.quote-note span{display:inline-flex;align-items:center;gap:8px;}
.quote-note i{color:var(--c-primary);}
.quote-media{position:relative;}
.quote-media img{
  width:100%;border-radius:var(--r-img);box-shadow:var(--s3);
  border:1px solid var(--c-line);
}
.quote-media .float-tag{
  position:absolute;left:-16px;bottom:22px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--s3);padding:14px 18px;display:flex;align-items:center;gap:12px;
}
.quote-media .float-tag i{color:var(--c-accent);font-size:20px;}
.quote-media .float-tag strong{display:block;font-size:14px;color:var(--c-ink);}
.quote-media .float-tag span{font-size:12px;color:var(--c-muted);}

/* ============ FAQ ============ */
.faq-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--s2);
  padding:8px 24px;
}
.accordion{border:none;background:transparent;margin:0;}
.accordion .accordion-item{border:none;border-bottom:1px solid var(--c-line);}
.accordion .accordion-item:last-child{border-bottom:none;}
.accordion .accordion-title{
  border:none;background:transparent;
  padding:22px 40px 22px 0;margin:0;
  font-size:16px;font-weight:500;color:var(--c-ink);letter-spacing:.5px;line-height:1.6;
  position:relative;transition:color .22s ease;
}
.accordion .accordion-title:hover,
.accordion .accordion-title:focus{background:transparent;color:var(--c-primary);}
.accordion .accordion-title::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;
  border:1px solid var(--c-line);color:var(--c-muted);
  display:grid;place-items:center;font-size:11px;
  transition:all .22s ease;
}
.accordion .accordion-item.is-active .accordion-title{color:var(--c-primary);}
.accordion .accordion-item.is-active .accordion-title::before{
  content:"\f068";background:var(--c-primary);border-color:var(--c-primary);color:#fff;
}
.accordion .accordion-content{
  display:none;
  border:none;background:transparent;
  padding:0 60px 22px 0;color:var(--c-body);font-size:15px;line-height:1.75;
}
.accordion .accordion-content p + p{margin-top:10px;}

/* ============ CTA panel ============ */
.cta-panel{
  position:relative;
  background:
    radial-gradient(rgba(255,255,255,.07) 1px, transparent 1px) 0 0/20px 20px,
    var(--c-footer);
  border-radius:var(--r-panel);
  padding:48px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:rgba(36,86,214,.28);filter:blur(10px);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{color:#fff;font-size:30px;letter-spacing:.8px;}
.cta-copy p{color:rgba(255,255,255,.76);margin-top:16px;font-size:16px;line-height:1.85;}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.86);font-size:14px;}
.cta-points i{color:var(--c-accent);margin-top:5px;}
.form-card{
  position:relative;z-index:2;
  background:#fff;border-radius:var(--r-card);box-shadow:var(--s3);
  padding:28px;
}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--c-muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{
  display:block;font-size:13px;color:var(--c-body);margin-bottom:8px;font-weight:500;
}
.field label .req{color:var(--c-point);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#FBFCFE;color:var(--c-ink);line-height:1.6;
  transition:border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.field textarea{resize:vertical;min-height:96px;}
.field input::placeholder,.field textarea::placeholder{color:#AEB6C7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:#fff;
  box-shadow:0 0 0 3px rgba(36,86,214,.14);
}
.field .err{display:none;font-size:12px;color:#D9481C;margin-top:6px;}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:#E4653B;background:#FFF7F4;}
.field.has-error .err{display:block;}
.form-ok{
  display:none;background:#E4F7F3;color:#0E8E7C;border-radius:var(--r-btn);
  padding:12px 14px;font-size:14px;margin-bottom:16px;
}
.form-ok.show{display:block;}

/* ============ Footer ============ */
.site-footer{background:var(--c-footer);color:rgba(255,255,255,.7);padding:72px 0 0;margin-top:96px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.foot-brand .brand-mark{background:var(--c-primary);}
.foot-brand strong{color:#fff;font-size:16px;letter-spacing:.5px;}
.foot-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.64);max-width:340px;}
.foot-contact{margin-top:20px;display:flex;flex-direction:column;gap:10px;font-size:13px;}
.foot-contact span{display:inline-flex;align-items:center;gap:10px;color:rgba(255,255,255,.64);}
.foot-contact i{color:var(--c-accent);}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.8px;font-weight:500;}
.foot-links{display:flex;flex-direction:column;gap:12px;}
.foot-links a{color:rgba(255,255,255,.66);font-size:14px;}
.foot-links a:hover{color:var(--c-accent);}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ Responsive ============ */
@media (max-width:1023px){
  .main-nav{
    position:fixed;top:0;right:0;z-index:95;
    width:320px;max-width:86vw;height:100vh;
    background:#fff;flex-direction:column;align-items:stretch;gap:6px;
    padding:88px 20px 28px;margin-left:0;
    transform:translateX(105%);transition:transform .26s ease;
    box-shadow:var(--s3);overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0);}
  .nav-link{width:100%;padding:14px 16px;border-radius:var(--r-btn);font-size:16px;}
  .nav-link.active{background:var(--c-primary-soft);}
  .nav-link.active::after{display:none;}
  .nav-drawer-cta{display:block;margin-top:20px;padding-top:20px;border-top:1px solid var(--c-line);}
  .nav-drawer-cta .btn{width:100%;}
  .nav-right .btn-cta{display:none;}
  .hamburger{display:inline-flex;}
  .page-head h1{font-size:36px;}
  .section{padding:72px 0;}
  .section-head h2{font-size:28px;}
  .compare-grid{grid-template-columns:1fr;}
  .kpi-panel{grid-template-columns:repeat(2,1fr);}
  .kpi-item:nth-child(2){border-right:none;}
  .kpi-item:nth-child(1),.kpi-item:nth-child(2){border-bottom:1px solid var(--c-line);}
  .quote-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-panel{grid-template-columns:1fr;padding:36px;gap:32px;}
  .cta-panel::after{display:none;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .nav-wrap{height:64px;gap:12px;}
  .brand-text em{display:none;}
  .brand-text strong{font-size:15px;}
  .page-head{padding:16px 0 44px;}
  .page-head h1{font-size:30px;margin-top:16px;}
  .page-lead{font-size:15px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .section-head h2{font-size:24px;}
  .compare-body{grid-template-columns:1fr;}
  .compare-col{padding-right:0;}
  .compare-col + .compare-col{padding-left:0;border-left:none;border-top:1px solid var(--c-line);margin-top:18px;padding-top:18px;}
  .kpi-value{font-size:30px;}
  .quote-media .float-tag{left:12px;bottom:12px;padding:12px 14px;}
  .accordion .accordion-title{font-size:15px;padding:18px 38px 18px 0;}
  .accordion .accordion-content{padding:0 0 18px;font-size:14px;}
  .cta-panel{padding:26px;border-radius:var(--r-card);}
  .cta-copy h2{font-size:24px;}
  .form-card{padding:22px;}
  .site-footer{padding-top:52px;margin-top:56px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .foot-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .compare-card{padding:20px;}
  .kpi-panel{grid-template-columns:1fr;}
  .kpi-item{border-right:none;border-bottom:1px solid var(--c-line);}
  .kpi-item:last-child{border-bottom:none;}
  .chip{font-size:12px;padding:7px 12px;}
}