/* roulang page: index */
:root{
  --ink:#0F2A4A;
  --primary:#1E63C8;
  --primary-dark:#164F9F;
  --primary-soft:#E8F0FC;
  --accent:#F2762E;
  --teal:#12A594;
  --teal-soft:#E1F5F1;
  --paper:#F7F5EF;
  --card:#FFFFFF;
  --line:#E5E1D6;
  --line-cool:#DDE6F2;
  --text:#1B2733;
  --muted:#5A6B7F;
  --faint:#93A2B5;
  --radius-s:8px;
  --radius-m:12px;
  --radius-l:18px;
  --shadow-s:0 1px 2px rgba(16,42,74,.06),0 12px 28px -14px rgba(16,42,74,.16);
  --shadow-h:0 16px 36px -14px rgba(16,42,74,.24);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  background-image:radial-gradient(rgba(15,42,74,.045) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;display:block;height:auto;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.grid-x{margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.16em;color:var(--muted);margin-bottom:12px;}
.eyebrow::before{content:"";display:block;width:16px;height:2px;background:var(--accent);border-radius:2px;}
.section-title{font-size:clamp(22px,2.6vw,32px);line-height:1.35;font-weight:700;letter-spacing:-.3px;color:var(--ink);}
.section-desc{margin-top:14px;font-size:15px;line-height:1.9;color:var(--muted);max-width:64ch;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(3px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-s);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{
  background:var(--primary);color:#fff;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.22),0 10px 22px -14px rgba(30,99,200,.9);
}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:inset 0 0 0 1px rgba(255,255,255,.24),0 14px 26px -14px rgba(30,99,200,.85);}
.btn-ghost{background:#fff;color:var(--primary);border-color:#C9D8EE;}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark);transform:translateY(-1px);}
.btn-block{width:100%;}
.badge{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6;background:var(--primary-soft);color:var(--primary-dark);}
.badge-teal{background:var(--teal-soft);color:var(--teal);}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-s);}
.tag{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;color:var(--muted);background:#F1F3EE;border:1px dashed #D9D5C8;}

/* Header */
.site-header{
  position:sticky;top:0;z-index:60;background:#FFFFFF;
  border-bottom:1px solid var(--line-cool);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px -14px rgba(15,42,74,.5);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.2px;color:var(--ink);white-space:nowrap;}
.brand:hover{color:var(--ink);}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;background:var(--ink);color:#fff;font-size:14px;font-weight:800;letter-spacing:0;border:2px solid var(--ink);box-shadow:inset 0 0 0 2px rgba(255,255,255,.18);}
.brand-short{display:none;}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav a{
  position:relative;display:inline-block;padding:8px 12px;font-size:14.5px;font-weight:500;color:var(--muted);border-radius:6px;
}
.main-nav a:hover{color:var(--primary);background:var(--primary-soft);}
.main-nav a.is-active{color:var(--primary);font-weight:700;background:transparent;}
.main-nav a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:3px;border-radius:2px;background:var(--primary);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-cta{height:42px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:8px;
  background:#fff;border:1px solid var(--line-cool);color:var(--ink);cursor:pointer;
}
.nav-toggle:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);}

/* Drawer */
.drawer{position:fixed;inset:0;z-index:90;display:none;}
.drawer.is-open{display:block;}
.drawer-panel{position:absolute;inset:0;background:#FFFFFF;display:flex;flex-direction:column;padding:20px 20px 40px;overflow-y:auto;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line-cool);border-radius:8px;background:#fff;color:var(--ink);cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{display:block;padding:16px 4px;font-size:17px;font-weight:600;color:var(--ink);border-bottom:1px solid #EFF1EA;}
.drawer-nav a.is-active{color:var(--primary);}
.drawer .btn{margin-top:24px;}

/* Tab bar */
.tabbar{display:none;}

/* Hero */
.hero{padding:76px 0 80px;position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;top:-120px;right:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(242,118,46,.12),transparent 68%);pointer-events:none;
}
.hero-copy .eyebrow{margin-bottom:14px;}
.hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;letter-spacing:-.5px;font-weight:700;color:var(--ink);max-width:22ch;}
.hero-sub{margin-top:18px;font-size:16.5px;line-height:1.9;color:var(--muted);max-width:46ch;}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:18px;margin-top:32px;}
.trust-list{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:34px;}
.trust-list li{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);}
.trust-list svg{color:var(--teal);flex:none;}
.hero-visual{position:relative;}
.hero-figure{
  position:relative;border-radius:20px;overflow:hidden;background:#EEF3FA;
  border:1px solid var(--line);box-shadow:var(--shadow-s);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.float-card{
  position:absolute;right:20px;bottom:20px;background:#fff;border-radius:14px;padding:14px 20px;
  box-shadow:var(--shadow-h);border:1px solid var(--line-cool);text-align:left;
}
.float-card strong{display:block;font-size:24px;font-weight:800;color:var(--accent);line-height:1.2;}
.float-card span{display:block;font-size:12.5px;color:var(--muted);margin-top:2px;}

/* Services */
.services{padding-top:0;}
.service-aside{position:sticky;top:100px;}
.service-aside .link-arrow{margin-top:22px;}
.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.service-card{
  position:relative;padding:26px 24px 22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-m);box-shadow:var(--shadow-s);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.service-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:#BBD2F2;}
.service-num{display:block;font-size:30px;font-weight:800;letter-spacing:-1px;color:rgba(242,118,46,.55);line-height:1;}
.service-icon{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:var(--primary-soft);color:var(--primary);margin:16px 0 12px;}
.service-card h3{font-size:18px;font-weight:700;color:var(--ink);line-height:1.5;}
.service-card p{margin-top:8px;font-size:14px;line-height:1.85;color:var(--muted);}
.service-card .link-arrow{margin-top:16px;font-size:13.5px;}

/* Stats */
.stats{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:8px 24px;border-left:1px solid var(--line);}
.stat:first-child{border-left:none;padding-left:0;}
.stat strong{display:block;font-size:44px;line-height:1.1;font-weight:800;letter-spacing:-1.5px;color:var(--primary);}
.stat strong em{font-style:normal;font-size:18px;font-weight:700;margin-left:4px;color:var(--accent);}
.stat span{display:block;margin-top:10px;font-size:13px;line-height:1.7;color:var(--muted);}

/* News */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.news-layout{display:grid;grid-template-columns:1.15fr 1fr;gap:28px;align-items:start;}
.news-feature{overflow:hidden;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.news-feature:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:#BBD2F2;}
.news-feature-media{display:block;background:#EEF3FA;}
.news-feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.news-feature-body{padding:24px;display:flex;flex-direction:column;gap:12px;}
.news-feature-body h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--ink);}
.news-feature-body h3 a{color:var(--ink);}
.news-feature-body h3 a:hover{color:var(--primary);}
.news-feature-body p{font-size:14.5px;line-height:1.85;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--faint);}
.news-list{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-s);overflow:hidden;}
.news-item{display:flex;gap:16px;padding:18px;border-bottom:1px solid #F0EEE6;transition:background-color .18s ease;}
.news-item:last-child{border-bottom:none;}
.news-item:hover{background:#FBFAF6;}
.news-item img{width:96px;height:72px;flex:none;border-radius:8px;object-fit:cover;background:#EEF3FA;}
.news-item-body{min-width:0;}
.news-item-body h4{font-size:15px;line-height:1.5;font-weight:700;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.news-item-body p{margin-top:6px;font-size:13px;line-height:1.7;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.news-item-body .news-meta{margin-top:8px;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);
  border-radius:var(--radius-m);
}
.empty-state svg{color:var(--faint);margin:0 auto 14px;}
.empty-state strong{display:block;font-size:16px;color:var(--ink);}
.empty-state span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted);}

/* Cases */
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:40px 0;}
.case-row + .case-row{border-top:1px dashed var(--line);}
.case-row.reverse .case-media{order:2;}
.case-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;border:1px solid var(--line);background:#EEF3FA;box-shadow:var(--shadow-s);}
.case-body h3{font-size:clamp(20px,2.2vw,26px);line-height:1.45;font-weight:700;color:var(--ink);}
.case-body p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--muted);}
.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.case-body .link-arrow{margin-top:20px;}

/* Plans */
.plans-wrap{display:grid;grid-template-columns:340px 1fr;gap:32px;align-items:start;}
.plan-tabs{display:flex;flex-direction:column;gap:6px;}
.plan-tab{
  display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:16px 18px;
  background:transparent;border:none;border-left:3px solid transparent;border-radius:0 8px 8px 0;
  font-size:15px;font-weight:600;color:var(--muted);cursor:pointer;transition:all .18s ease;
}
.plan-tab .idx{font-size:13px;font-weight:800;color:var(--faint);letter-spacing:.06em;}
.plan-tab:hover{background:#fff;color:var(--ink);}
.plan-tab.is-active{background:#fff;color:var(--ink);font-weight:800;border-left-color:var(--accent);box-shadow:var(--shadow-s);}
.plan-tab.is-active .idx{color:var(--accent);}
.plan-panel{background:#FFFFFF;border:1px solid var(--line);border-radius:var(--radius-l);padding:36px;box-shadow:var(--shadow-s);}
.plan-panel h3{font-size:22px;font-weight:700;color:var(--ink);line-height:1.45;}
.plan-panel > p{margin-top:14px;font-size:15px;line-height:1.95;color:var(--muted);}
.plan-points{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.plan-points li{position:relative;padding-left:26px;font-size:14.5px;line-height:1.8;color:var(--text);}
.plan-points li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:50%;
  background:var(--teal-soft);border:1px solid rgba(18,165,148,.4);
}
.plan-points li::after{content:"";position:absolute;left:4px;top:13px;width:6px;height:3px;border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(-45deg);}
.plan-panel .btn{margin-top:26px;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item[open]{border-color:rgba(30,99,200,.32);box-shadow:var(--shadow-s);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:700;color:var(--ink);cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-icon{
  flex:none;display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;
  background:var(--primary-soft);color:var(--primary);font-size:16px;font-weight:700;line-height:1;
  transition:transform .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--muted);}

/* Contact */
.contact-grid{display:grid;grid-template-columns:0.85fr 1.15fr;gap:28px;align-items:start;}
.contact-info{background:var(--ink);color:#E7EEF8;border-radius:var(--radius-l);padding:36px;box-shadow:var(--shadow-s);}
.contact-info h3{font-size:20px;font-weight:700;color:#fff;line-height:1.5;}
.contact-info > p{margin-top:12px;font-size:14px;line-height:1.85;color:#B9CBE3;}
.info-list{margin-top:26px;display:flex;flex-direction:column;gap:18px;}
.info-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;line-height:1.8;color:#CBD9EC;}
.info-list svg{flex:none;margin-top:3px;color:#8FB3E4;}
.info-list strong{display:block;color:#fff;font-weight:600;font-size:13.5px;letter-spacing:.04em;margin-bottom:2px;}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);padding:34px;box-shadow:var(--shadow-s);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:8px;letter-spacing:.02em;}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line-cool);border-radius:var(--radius-s);
  background:#FCFCFA;color:var(--text);transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235A6B7F' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(30,99,200,.14);}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#D64545;background:#FFF7F7;}
.field .err{display:none;margin-top:6px;font-size:12px;color:#D64545;}
.field.has-error .err{display:block;}
.form-note{margin-top:14px;font-size:12px;line-height:1.7;color:var(--faint);}
.form-msg{display:none;margin-top:16px;padding:12px 14px;border-radius:var(--radius-s);font-size:13.5px;background:var(--teal-soft);color:#0B7C6F;border:1px solid rgba(18,165,148,.35);}
.form-msg.is-show{display:block;}

/* Footer */
.site-footer{background:var(--ink);color:#C7D6EA;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{background:#fff;color:var(--ink);border-color:#fff;box-shadow:none;}
.footer-col p{font-size:13px;line-height:1.85;color:#9FB6D2;max-width:30ch;}
.footer-col h4{font-size:13px;font-weight:700;color:#fff;letter-spacing:.1em;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#C7D6EA;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-col .contact-line{font-size:13.5px;color:#C7D6EA;line-height:1.8;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;font-size:13px;color:#8FA7C4;}

/* Responsive */
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .section--tight{padding:60px 0;}
  .hero{padding:52px 0 60px;}
  .hero-visual{margin-top:40px;}
  .service-aside{position:static;margin-bottom:32px;}
  .plans-wrap{grid-template-columns:1fr;}
  .plan-tabs{flex-direction:row;overflow-x:auto;gap:10px;padding-bottom:6px;}
  .plan-tab{flex:none;border-left:none;border-bottom:3px solid transparent;border-radius:8px 8px 0 0;background:#fff;box-shadow:var(--shadow-s);}
  .plan-tab.is-active{border-left-color:transparent;border-bottom-color:var(--accent);}
  .contact-grid{grid-template-columns:1fr;}
  .news-layout{grid-template-columns:1fr;}
  .case-row{gap:32px;padding:32px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:767px){
  body{padding-bottom:72px;}
  .container{padding-left:20px;padding-right:20px;}
  .grid-x{margin-left:-8px;margin-right:-8px;}
  .grid-x>.cell{padding-left:8px;padding-right:8px;}
  .main-nav,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand{font-size:15.5px;}
  .brand-full{display:none;}
  .brand-short{display:inline;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .hero{padding:36px 0 48px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .float-card{display:none;}
  .service-grid{grid-template-columns:1fr;gap:16px;}
  .service-num{font-size:22px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:0;}
  .stat{padding:18px 16px;border-left:1px solid var(--line);}
  .stat:nth-child(odd){border-left:none;padding-left:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-top:none;}
  .stat strong{font-size:34px;}
  .case-row{grid-template-columns:1fr;gap:20px;padding:28px 0;}
  .case-row.reverse .case-media{order:0;}
  .news-item img{width:84px;height:66px;}
  .news-feature-body{padding:18px;}
  .plan-panel{padding:24px;}
  .contact-info,.contact-form{padding:24px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-body{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:48px;}
  .tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:#fff;border-top:1px solid var(--line-cool);
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -8px 20px -18px rgba(15,42,74,.6);
  }
  .tabbar a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    height:56px;font-size:10px;color:var(--muted);position:relative;
  }
  .tabbar a.is-active{color:var(--primary);font-weight:700;}
  .tabbar a.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:24px;height:2px;background:var(--primary);border-radius:0 0 2px 2px;}
}
@media screen and (max-width:519px){
  .hero h1{font-size:26px;}
  .section-title{font-size:21px;}
  .stat strong{font-size:28px;}
  .btn{height:46px;font-size:14.5px;}
}

/* roulang page: category1 */
:root{
  --brand:#1E63C8;
  --brand-dark:#0F2A4A;
  --brand-soft:#E8F0FC;
  --accent:#F2762E;
  --teal:#12A594;
  --teal-soft:#E3F6F3;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E3EAF4;
  --line-strong:#C9D8EE;
  --text:#1B2733;
  --text-2:#5A6B7F;
  --text-3:#93A2B5;
  --r-sm:8px;
  --r:12px;
  --r-lg:16px;
  --r-xl:20px;
  --shadow:0 1px 2px rgba(16,42,74,.06),0 12px 28px -14px rgba(16,42,74,.16);
  --shadow-hover:0 16px 36px -14px rgba(16,42,74,.24);
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
section{scroll-margin-top:88px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(16,42,74,.4);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:24px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:var(--brand-dark);
  letter-spacing:-0.2px;white-space:nowrap;
}
.brand-mark{
  width:32px;height:32px;border-radius:9px;
  display:inline-grid;place-items:center;
  background:var(--brand);color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 6px 14px -8px rgba(30,99,200,.9);
}
.logo:hover{color:var(--brand);}
.main-nav{display:flex;align-items:center;gap:26px;}
.main-nav a{
  position:relative;
  display:inline-block;
  font-size:15px;color:var(--text-2);
  line-height:72px;
  padding:0 2px;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:20px;height:3px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform var(--ease);
}
.main-nav a:hover{color:var(--brand);}
.main-nav a:hover::after{transform:scaleX(1);background:var(--brand-soft);}
.main-nav a.is-active{color:var(--brand);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.header-cta{display:inline-flex;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--brand-dark);
  align-items:center;justify-content:center;cursor:pointer;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),background var(--ease),border-color var(--ease),box-shadow var(--ease),color var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(30,99,200,.9);}
.btn-primary:hover{background:#1a58b3;color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(30,99,200,.9);}
.btn-primary:active{transform:translateY(0);background:#164a99;}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line-strong);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand);
}
.link-arrow span{transition:transform var(--ease);display:inline-block;}
.link-arrow:hover span{transform:translateX(3px);}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:2px;font-weight:700;
  color:var(--text-2);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:16px;height:3px;border-radius:2px;background:var(--accent);}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-0.5px;color:var(--brand-dark);}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;font-weight:700;color:var(--brand-dark);letter-spacing:-0.3px;}
h3{font-size:19px;line-height:1.5;font-weight:700;color:var(--brand-dark);}
.lead{font-size:17px;line-height:1.85;color:var(--text-2);max-width:62ch;}
.muted{color:var(--text-3);font-size:13px;}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:999px;
  font-size:13px;font-weight:600;
  background:var(--brand-soft);color:var(--brand);
}
.tag-teal{background:var(--teal-soft);color:var(--teal);}
.tag-accent{background:#FDEDE3;color:#C9551A;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ 页头 ============ */
.page-head{
  padding:40px 0 72px;
  background:
    radial-gradient(760px 320px at 88% -10%, rgba(232,240,252,.95), rgba(246,248,252,0) 70%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
.breadcrumb{font-size:13px;color:var(--text-3);margin-bottom:28px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--text-3);}
.page-head-grid{display:flex;flex-wrap:wrap;margin:0 -12px;align-items:center;}
.page-head-grid > .cell{padding:0 12px;width:100%;}
.page-head-copy h1{margin-bottom:18px;}
.page-head-copy .lead{margin-bottom:24px;}
.page-head-copy .tag-row{margin-bottom:28px;}
.head-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;}
.head-figure{
  border-radius:var(--r-xl);overflow:hidden;
  background:#EEF3FA;box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.head-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ============ 步骤流程条 ============ */
.step-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.step{position:relative;padding-right:8px;}
.step-top{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.step-num{
  flex:0 0 auto;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--brand);color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 10px 20px -12px rgba(30,99,200,.95);
}
.step-line{flex:1 1 auto;height:1px;background:var(--line);}
.step:last-child .step-line{background:transparent;}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.75;color:var(--text-2);}

/* ============ 信息卡网格 ============ */
.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#BBD2F2;}
.info-card-body{padding:26px 28px 28px;}
.info-card-body h3{margin-bottom:10px;}
.info-card-body p{font-size:15px;line-height:1.8;color:var(--text-2);margin-bottom:18px;}
.info-card-media{background:#EEF3FA;}
.info-card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.info-card-icon{
  width:44px;height:44px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:16px;
}
.info-card-icon svg{width:24px;height:24px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.mini-list{margin:0 0 18px;}
.mini-list li{
  position:relative;padding-left:18px;font-size:14px;color:var(--text-2);
  line-height:1.8;
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.card-foot{margin-top:auto;}

/* ============ 参数对照表 ============ */
.table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--r);box-shadow:var(--shadow);
}
table.spec{width:100%;min-width:720px;border-collapse:collapse;font-size:14px;}
table.spec thead th{
  text-align:left;padding:16px 20px;font-size:13px;font-weight:700;
  color:var(--brand-dark);background:var(--brand-soft);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
table.spec tbody td{padding:16px 20px;color:var(--text-2);border-bottom:1px solid var(--line);vertical-align:top;}
table.spec tbody tr:last-child td{border-bottom:0;}
table.spec tbody tr:nth-child(even){background:#F6F8FC;}
table.spec tbody td:first-child{color:var(--brand-dark);font-weight:600;white-space:nowrap;}
.spec-note{display:flex;align-items:flex-start;gap:10px;margin-top:18px;font-size:13px;color:var(--text-3);}
.spec-note svg{flex:0 0 auto;width:18px;height:18px;stroke:var(--accent);stroke-width:1.75;fill:none;margin-top:3px;}

/* ============ 提示条 ============ */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--brand-soft);border-left:4px solid var(--brand);
  border-radius:var(--r);padding:22px 26px;
}
.notice svg{flex:0 0 auto;width:24px;height:24px;stroke:var(--brand);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round;margin-top:2px;}
.notice h3{font-size:16px;margin-bottom:6px;}
.notice p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item[open]{border-color:rgba(30,99,200,.3);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:700;color:var(--brand-dark);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;position:relative;width:20px;height:20px;border-radius:50%;
  border:1px solid var(--line-strong);
  transition:transform var(--ease),border-color var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:1px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{left:5px;right:5px;top:9px;height:1.5px;}
.faq-icon::after{top:5px;bottom:5px;left:9px;width:1.5px;}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:var(--brand);}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(180deg,#FFFFFF,#F0F5FD);
  border:1px solid var(--line);border-radius:var(--r-xl);
  padding:48px;box-shadow:var(--shadow);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{margin-bottom:12px;}
.cta-band p{font-size:15px;color:var(--text-2);max-width:56ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.contact-strip{display:flex;flex-wrap:wrap;gap:26px;margin-top:22px;}
.contact-item{display:inline-flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);}
.contact-item svg{width:20px;height:20px;stroke:var(--brand);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-dark);color:#C7D6EA;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:16px;font-weight:700;color:#fff;margin-bottom:14px;
}
.footer-col p{font-size:13px;line-height:1.85;color:#9FB4CE;max-width:34ch;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:#C7D6EA;}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;}
.contact-line{font-size:13px;color:#9FB4CE;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#8FA6C2;
}

/* ============ 移动端抽屉与底部 Tab ============ */
.drawer{
  position:fixed;inset:0;z-index:200;background:#fff;
  display:none;flex-direction:column;padding:20px 20px 40px;
}
.drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:16px 4px;font-size:17px;color:var(--brand-dark);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand);font-weight:700;}
.drawer .btn{margin-top:24px;}

.tabbar{display:none;}
@media (max-width:767px){
  body{padding-bottom:76px;}
  .tabbar{
    position:fixed;left:0;right:0;bottom:0;z-index:150;
    display:flex;height:calc(56px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    background:rgba(255,255,255,.98);
    border-top:1px solid var(--line);
    box-shadow:0 -8px 24px -20px rgba(16,42,74,.5);
  }
  .tabbar a{
    flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:3px;font-size:10px;color:var(--text-3);position:relative;
  }
  .tabbar a svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round;}
  .tabbar a.is-active{color:var(--brand);}
  .tabbar a.is-active::before{
    content:"";position:absolute;top:0;left:22%;right:22%;height:2px;
    background:var(--brand);border-radius:0 0 2px 2px;
  }
}

/* ============ 响应式 ============ */
@media (min-width:1024px){
  .page-head-grid > .cell.large-7{width:58.3333%;}
  .page-head-grid > .cell.large-5{width:41.6667%;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .page-head{padding:32px 0 56px;}
  .page-head-copy{margin-bottom:32px;}
  .step-flow{grid-template-columns:repeat(2,1fr);}
  .step:nth-child(2) .step-line{background:transparent;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:36px;}
}
@media (max-width:1023px) and (min-width:768px){
  .main-nav{gap:18px;}
  .main-nav a{font-size:14px;}
  .header-cta .btn{height:42px;padding:0 16px;font-size:14px;}
}
@media (max-width:900px){
  .main-nav{display:none;}
  .header-cta{display:none;}
  .menu-toggle{display:inline-flex;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .info-grid{grid-template-columns:1fr;}
  .step-flow{grid-template-columns:1fr;gap:8px;}
  .step{
    padding:0 0 22px 30px;position:relative;
  }
  .step::before{
    content:"";position:absolute;left:13px;top:40px;bottom:0;width:1px;background:var(--line);
  }
  .step:last-child::before{display:none;}
  .step-top{position:relative;margin-bottom:10px;}
  .step-num{position:absolute;left:-30px;top:0;width:28px;height:28px;font-size:12px;}
  .step-line{display:none;}
  .cta-band{padding:28px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .notice{padding:18px 20px;}
  .info-card-body{padding:22px;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .head-actions{gap:14px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-answer{padding:0 18px 18px;}
}

/* roulang page: article */
:root{
  --paper:#FAF7F2;
  --surface:#FFFFFF;
  --ink:#14263C;
  --ink-2:#0F2A4A;
  --primary:#1E63C8;
  --primary-dark:#0B4FA8;
  --primary-soft:#E8F0FC;
  --accent:#E2693A;
  --accent-soft:#FBEDE5;
  --teal:#12A594;
  --teal-soft:#E4F5F2;
  --body:#1B2733;
  --muted:#5A6B7F;
  --faint:#93A2B5;
  --line:#E3EAF4;
  --line-strong:#C9D8EE;
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:20px;
  --shadow-s:0 1px 2px rgba(16,42,74,.06),0 12px 28px -14px rgba(16,42,74,.16);
  --shadow-m:0 16px 36px -14px rgba(16,42,74,.24);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--body);
  background-color:var(--paper);
  -webkit-font-smoothing:antialiased;
}
@media (max-width:767px){body{padding-bottom:72px}}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4,h5,h6{color:var(--ink-2);margin:0;line-height:1.35;font-weight:700}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:var(--primary-soft);color:var(--ink-2)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:520px){.container{padding:0 20px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px -20px rgba(16,42,74,.7)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:64px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--ink-2);letter-spacing:-.2px;white-space:nowrap;
}
.brand:hover{color:var(--ink-2)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(160deg,#2A74D8,#0F2A4A);
  color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;
  box-shadow:0 8px 16px -10px rgba(30,99,200,.95);
}
.brand-short{display:none}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.main-nav a{
  position:relative;display:inline-block;padding:10px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--muted);
}
.main-nav a:hover{color:var(--primary);background:var(--primary-soft)}
.main-nav a.is-active{color:var(--primary);font-weight:700}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:3px;
  border-radius:2px;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-strong);
  background:#fff;color:var(--ink-2);align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 12px 24px -16px rgba(30,99,200,.95)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(30,99,200,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--line-strong);color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:8px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow svg{transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- Eyebrow / Badge ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--accent);
  text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--accent);border-radius:2px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1;
}
.badge-primary{background:var(--primary-soft);color:var(--primary-dark)}
.badge-teal{background:var(--teal-soft);color:#0C7A6E}
.badge-accent{background:var(--accent-soft);color:#B84C1F}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;background:#fff;
  display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .28s ease;
  visibility:hidden;
}
.drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line-strong);
  background:#fff;color:var(--ink-2);display:grid;place-items:center;
}
.drawer-nav{padding:16px 20px;display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  padding:14px 12px;border-radius:10px;font-size:16px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--primary-soft);color:var(--primary);border-color:transparent}
.drawer-foot{padding:20px;margin-top:auto;border-top:1px solid var(--line)}
.drawer-foot p{font-size:13px;color:var(--faint);margin:12px 0 0}

/* ---------- Article hero ---------- */
.article-hero{
  background-color:#fff;
  background-image:radial-gradient(rgba(30,99,200,.055) 1px,transparent 1px);
  background-size:24px 24px;
  border-bottom:1px solid var(--line);
  padding:36px 0 40px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:22px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#C6D2E2}
.breadcrumb .current{
  color:var(--faint);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-hero h1{
  font-family:var(--font-serif);
  font-size:clamp(26px,3.6vw,40px);line-height:1.28;letter-spacing:-.5px;
  max-width:22ch;margin-bottom:20px;
}
.meta-bar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--muted);padding-top:18px;border-top:1px solid var(--line)}
.meta-bar .dot{width:4px;height:4px;border-radius:50%;background:#C6D2E2}
.meta-bar time{font-variant-numeric:tabular-nums}
.meta-bar .read-time{display:inline-flex;align-items:center;gap:6px}

/* ---------- Article layout ---------- */
.article-section{padding:56px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.article-main{max-width:760px;min-width:0}
.article-body{font-size:16px;line-height:1.9;color:var(--body);overflow-wrap:break-word;word-break:break-word}
.article-body > *:first-child{margin-top:0}
.article-body > p:first-of-type{font-size:17px;line-height:1.95;color:#26374A}
.article-body p{margin:0 0 1.2em;max-width:72ch}
.article-body h2{
  position:relative;font-family:var(--font-serif);
  font-size:clamp(20px,2.2vw,26px);line-height:1.45;
  margin:44px 0 18px;padding-left:16px;border-left:4px solid var(--primary);
}
.article-body h3{
  font-size:19px;line-height:1.5;margin:32px 0 12px;color:var(--ink-2);
}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--ink-2)}
.article-body h1{font-size:26px;margin:32px 0 16px}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.6em;max-width:70ch}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--accent);opacity:.85;
}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:0;
  font-size:13px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;
}
.article-body ol li{padding-left:24px}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--primary-soft);
  border-left:3px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0;
  color:#28405C;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius);margin:26px auto;box-shadow:var(--shadow-s);background:#EEF3FA}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:12px;color:var(--faint);text-align:center;margin-top:10px;line-height:1.7}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;
  display:block;overflow-x:auto;white-space:nowrap;
  border:1px solid var(--line);border-radius:var(--radius);
}
.article-body thead{background:var(--primary-soft)}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#F8FAFD}
.article-body tbody tr:last-child td{border-bottom:none}
.article-body pre{
  background:#0F2A4A;color:#E4ECF7;padding:18px 20px;border-radius:var(--radius);
  overflow-x:auto;font-size:13px;line-height:1.7;margin:24px 0;
}
.article-body code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13.5px;background:#EEF3FA;padding:2px 6px;border-radius:6px;color:#1B4A86}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0}
.article-body a{text-decoration:underline;text-decoration-color:rgba(30,99,200,.35);text-underline-offset:3px}
.article-body a:hover{text-decoration-color:var(--primary)}

/* ---------- Empty state ---------- */
.empty-state{
  text-align:center;padding:72px 24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-s);max-width:640px;margin:0 auto;
}
.empty-state .empty-icon{
  width:64px;height:64px;border-radius:18px;background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;margin:0 auto 20px;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:26px}

/* ---------- Sidebar ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;min-width:0}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-s);
}
.side-title{
  font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--ink-2);
  display:flex;align-items:center;gap:8px;margin-bottom:16px;
}
.side-title::before{content:"";width:14px;height:2px;background:var(--accent);border-radius:2px}
.toc-list{display:flex;flex-direction:column;gap:2px;counter-reset:toc}
.toc-item a{
  display:block;padding:7px 10px;border-radius:8px;font-size:14px;color:var(--muted);
  line-height:1.6;border-left:2px solid transparent;
}
.toc-item a:hover{background:var(--primary-soft);color:var(--primary);border-left-color:var(--primary)}
.toc-item.toc-sub a{padding-left:22px;font-size:13px}
.toc-empty{font-size:13px;color:var(--faint);line-height:1.7}
.side-links{display:flex;flex-direction:column;gap:2px}
.side-links a{
  display:flex;gap:10px;padding:10px 8px;border-radius:8px;font-size:14px;
  color:var(--body);line-height:1.6;border-bottom:1px solid var(--line);
}
.side-links li:last-child a{border-bottom:none}
.side-links a:hover{background:var(--primary-soft);color:var(--primary-dark)}
.side-links .idx{
  flex:0 0 20px;height:20px;border-radius:6px;background:var(--primary-soft);
  color:var(--primary);font-size:11px;font-weight:700;display:grid;place-items:center;margin-top:3px;
}
.cta-card{padding:0;overflow:hidden;background:linear-gradient(180deg,#F4F8FE,#fff)}
.cta-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.cta-card-body{padding:20px 22px 24px}
.cta-card h2{font-size:17px;margin-bottom:8px}
.cta-card p{font-size:13.5px;color:var(--muted);line-height:1.75;margin-bottom:16px}

/* ---------- Post nav ---------- */
.post-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;
  margin-top:56px;padding-top:32px;border-top:1px solid var(--line);max-width:760px;
}
.post-nav-item{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-nav-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);border-color:#BBD2F2}
.post-nav-item .pn-label{font-size:12px;color:var(--faint);letter-spacing:.1em;display:block;margin-bottom:6px}
.post-nav-item .pn-title{font-size:15px;font-weight:600;color:var(--ink-2);line-height:1.5}
.post-nav-item.next{text-align:right}
.post-nav-back{margin-top:24px;display:flex;justify-content:center}

/* ---------- Related ---------- */
.related-block{margin-top:64px}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.related-head h2{font-family:var(--font-serif);font-size:clamp(20px,2.2vw,26px)}
.related-card{
  display:block;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-s);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);border-color:#BBD2F2}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EEF3FA}
.related-card .rc-body{padding:18px 20px 22px}
.related-card .rc-tag{font-size:12px;color:var(--teal);font-weight:700;letter-spacing:.08em;display:block;margin-bottom:8px}
.related-card h3{font-size:16px;line-height:1.5;margin-bottom:8px;color:var(--ink-2)}
.related-card p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0}

/* ---------- Footer ---------- */
.site-footer{background:#0F2A4A;color:#C7D6EA;padding:64px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px;
}
.footer-brand .brand-mark{
  background:linear-gradient(160deg,#4A8EE8,#1E63C8);box-shadow:none;width:32px;height:32px;flex:0 0 32px;font-size:15px;
}
.footer-col p{font-size:13.5px;line-height:1.8;color:#A9BED8;margin:0;max-width:32ch}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;font-weight:700;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:#C7D6EA}
.footer-col ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-col .contact-line{font-size:13.5px;color:#C7D6EA;line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8DA6C4;
}

/* ---------- Mobile tabbar ---------- */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  height:calc(56px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.97);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(5,1fr);height:56px}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:10px;color:var(--faint);font-weight:500;
}
.tab-item svg{width:21px;height:21px;stroke-width:1.75}
.tab-item:hover{color:var(--primary)}
.tab-item.is-active{color:var(--primary);font-weight:700}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:0 0 2px 2px;background:var(--primary);
}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .main-nav{gap:0}
  .main-nav a{padding:10px 9px;font-size:14px}
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:36px}
}
@media (max-width:1023px){
  .main-nav,.header-actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-main{max-width:100%}
  .article-side{position:static;flex-direction:column}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .header-inner{height:64px}
  .brand{font-size:16px}
  .brand-full{display:none}
  .brand-short{display:inline}
  .tabbar{display:block}
  .article-hero{padding:26px 0 30px}
  .article-hero h1{max-width:100%}
  .breadcrumb .current{max-width:30ch}
  .article-section{padding:36px 0 56px}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.next{text-align:left}
  .related-block{margin-top:44px}
  .site-footer{padding-top:48px;margin-top:64px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .article-body h2{margin-top:36px}
  .side-card{padding:20px}
}
@media (max-width:520px){
  .article-hero h1{font-size:24px;line-height:1.35}
  .meta-bar{font-size:13px;gap:10px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .empty-state{padding:52px 20px}
  .btn{height:46px;padding:0 20px;font-size:14.5px}
}

/* roulang page: category3 */
:root{
  --brand:#1E63C8;
  --brand-dark:#0F2A4A;
  --brand-light:#E8F0FC;
  --accent:#F2762E;
  --teal:#12A594;
  --teal-light:#E4F6F3;
  --bg:#F6F8FC;
  --paper:#FBFCFE;
  --card:#FFFFFF;
  --line:#E3EAF4;
  --text:#1B2733;
  --sub:#5A6B7F;
  --muted:#93A2B5;
  --radius:12px;
  --radius-lg:20px;
  --shadow:0 1px 2px rgba(16,42,74,.06),0 12px 28px -14px rgba(16,42,74,.16);
  --shadow-hover:0 16px 36px -14px rgba(16,42,74,.24);
  --space-block:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;border-style:none}
a{color:var(--brand);text-decoration:none;background-color:transparent}
a:hover{color:var(--brand-dark)}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--brand-dark);font-weight:700;letter-spacing:-.3px}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* Foundation 覆盖 */
.button,.button.primary,.button.secondary{background:var(--brand);color:#fff;border-radius:8px;box-shadow:none}
.button:hover{background:#1a58b3}
.callout{border:none;background:var(--brand-light);border-radius:var(--radius);color:var(--brand-dark);padding:20px 24px}
.accordion{border:none;background:transparent}
.accordion-title{border:none;background:#fff}
.accordion-content{border:none;background:#fff}
input[type=text],input[type=email],input[type=tel],select,textarea{
  box-shadow:none;
  border:1px solid #C9D8EE;
  border-radius:8px;
  background:#fff;
  height:46px;
  margin:0;
  color:var(--text);
}
textarea{height:auto;min-height:120px;padding:12px 14px;resize:vertical}
input[type=text]:focus,input[type=email]:focus,input[type=tel]:focus,select:focus,textarea:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 2px rgba(30,99,200,.18);
  outline:none;
}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* 头部 */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--brand-dark);font-weight:700;font-size:18px;letter-spacing:-.3px}
.logo:hover{color:var(--brand-dark)}
.logo-mark{
  width:34px;height:34px;flex-shrink:0;border-radius:10px;
  background:var(--brand-dark);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;
}
.logo-short{display:none}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  color:var(--sub);
  transition:color .18s ease;
}
.main-nav a:hover{color:var(--brand)}
.main-nav a.is-active{color:var(--brand);font-weight:600}
.main-nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:3px;
  background:var(--accent);border-radius:2px;
}
.header-cta{flex-shrink:0;margin-left:4px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:8px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:#1a58b3;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(30,99,200,.7)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C9D8EE}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow svg{transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(3px)}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;border-radius:10px;
  background:#fff;border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--brand-dark);
}
.nav-toggle:hover{border-color:#C9D8EE;background:var(--brand-light)}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:200;
  background:#fff;
  display:none;
  flex-direction:column;
  padding:20px 24px 120px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;margin-bottom:16px}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;display:flex;align-items:center;justify-content:center;color:var(--brand-dark);
}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  padding:18px 4px;font-size:17px;color:var(--brand-dark);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand);font-weight:700}
.drawer-cta{margin-top:24px}

/* 底部 Tab */
.tab-bar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:150;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-bar ul{display:flex;margin:0;padding:0;list-style:none}
.tab-bar li{flex:1}
.tab-bar a{
  position:relative;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;height:56px;font-size:10px;color:var(--muted);
}
.tab-bar a svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.75;fill:none}
.tab-bar a.is-active{color:var(--brand);font-weight:600}
.tab-bar a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;background:var(--brand);border-radius:0 0 2px 2px;
}

/* 面包屑 */
.breadcrumb-wrap{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:14px 0;flex-wrap:wrap}
.breadcrumb a{color:var(--sub)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C3D0E1}
.breadcrumb .current{color:var(--muted)}

/* 页头 */
.page-hero{padding:64px 0 56px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:2px;color:var(--sub);font-weight:600;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--accent);border-radius:2px}
.page-hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;letter-spacing:-.5px;margin-bottom:18px}
.page-hero .lead{font-size:17px;color:var(--sub);max-width:640px;margin-bottom:24px;line-height:1.9}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:999px;
  font-size:13px;font-weight:600;
  background:var(--brand-light);color:var(--brand);
}
.tag-teal{background:var(--teal-light);color:var(--teal)}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  background:#EEF3FA;
}
.hero-note{
  position:absolute;left:-18px;bottom:26px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 18px;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:12px;
}
.hero-note strong{display:block;font-size:20px;color:var(--brand);line-height:1.2}
.hero-note span{font-size:12px;color:var(--muted)}

/* 板块通用 */
.section{padding:var(--space-block) 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;margin-bottom:14px}
.section-head p{color:var(--sub);font-size:16px;margin:0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* 帮助分组卡片墙 */
.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.help-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.help-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#BBD2F2}
.help-card-top{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.help-icon{
  width:44px;height:44px;flex-shrink:0;border-radius:12px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.help-icon svg{width:24px;height:24px;stroke:currentColor;stroke-width:1.75;fill:none}
.help-card h3{font-size:19px;line-height:1.5}
.help-card .card-desc{color:var(--sub);font-size:14px;margin-bottom:16px}
.point-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px;flex:1}
.point-list li{position:relative;padding-left:20px;font-size:14px;color:var(--sub);line-height:1.7}
.point-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:50%;background:var(--teal);
}

/* 图文区块 */
.feature-pair{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.feature-card img{
  width:100%;aspect-ratio:16/9;object-fit:cover;background:#EEF3FA;
}
.feature-body{padding:24px 26px 28px}
.feature-body h3{font-size:19px;margin-bottom:10px}
.feature-body p{font-size:14.5px;color:var(--sub);margin-bottom:16px}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-side h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:14px}
.faq-side p{color:var(--sub);font-size:15px;margin-bottom:20px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(30,99,200,.3);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--brand-dark);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex-shrink:0;
  width:26px;height:26px;border-radius:50%;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open] summary::after{
  content:"−";transform:rotate(180deg);
  background:var(--brand);color:#fff;
}
.faq-answer{padding:0 22px 20px;font-size:15px;color:var(--sub);line-height:1.85}

/* 联系卡片 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:stretch}
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:32px;box-shadow:var(--shadow);
}
.contact-card h3{font-size:20px;margin-bottom:10px}
.contact-card > p{color:var(--sub);font-size:14.5px;margin-bottom:24px}
.contact-lines{display:flex;flex-direction:column;gap:18px}
.contact-line-item{display:flex;align-items:flex-start;gap:14px}
.contact-line-item .ico{
  width:38px;height:38px;flex-shrink:0;border-radius:10px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.contact-line-item .ico svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.75;fill:none}
.contact-line-item .txt strong{display:block;font-size:14px;color:var(--brand-dark);font-weight:600}
.contact-line-item .txt span{font-size:14px;color:var(--sub)}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:13px;font-weight:600;color:var(--brand-dark);margin-bottom:6px}
.form-field input,.form-field textarea{width:100%;display:block}
.form-hint{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.7}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-success{
  display:none;
  background:var(--teal-light);
  color:#0B6E63;
  border-radius:8px;
  padding:12px 16px;
  font-size:14px;
  margin-top:14px;
}
.form-success.is-visible{display:block}

/* CTA 条 */
.cta-band{padding:0 0 var(--space-block)}
.cta-inner{
  background:var(--brand-dark);
  border-radius:var(--radius-lg);
  padding:56px 48px;
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:12px}
.cta-inner p{color:#C7D6EA;font-size:15px;margin:0;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-actions .btn-primary{background:var(--accent)}
.cta-actions .btn-primary:hover{background:#dd6620}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* 页脚 */
.site-footer{background:var(--brand-dark);color:#C7D6EA;padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;
}
.footer-col p{color:#A9BDD6;font-size:13px;line-height:1.8;margin:0;max-width:280px}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{color:#C7D6EA;font-size:14px}
.footer-col ul a:hover{color:#fff;text-decoration:underline}
.footer-col .contact-line{color:#C7D6EA;font-size:13.5px;line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#93A9C6;
}

/* 响应式 */
@media (max-width:1023px){
  :root{--space-block:72px}
  .main-nav{display:none}
  .header-cta{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media img{aspect-ratio:16/10}
  .hero-note{display:none}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;padding:40px 32px}
}
@media (max-width:767px){
  :root{--space-block:56px}
  body{padding-bottom:72px}
  .container{padding:0 20px}
  .logo-full{display:none}
  .logo-short{display:inline}
  .logo{font-size:17px}
  .tab-bar{display:block}
  .help-grid{grid-template-columns:1fr}
  .feature-pair{grid-template-columns:1fr}
  .page-hero{padding:40px 0 36px}
  .page-hero .lead{font-size:16px}
  .help-card{padding:22px}
  .contact-card{padding:24px}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-inner{padding:32px 24px}
  .hero-actions .btn{width:100%}
}
@media (max-width:519px){
  .section-head{margin-bottom:32px}
  .breadcrumb{font-size:12px}
}

/* roulang page: category2 */
:root{
  --c-primary:#1E63C8;
  --c-primary-hover:#1A56AE;
  --c-primary-dark:#0F2A4A;
  --c-primary-soft:#E8F0FC;
  --c-accent:#F2762E;
  --c-teal:#12A594;
  --c-teal-soft:rgba(18,165,148,.12);
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-line:#E3EAF4;
  --c-text:#1B2733;
  --c-sub:#5A6B7F;
  --c-weak:#93A2B5;
  --c-placeholder:#EEF3FA;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(16,42,74,.06),0 12px 28px -14px rgba(16,42,74,.16);
  --sh-2:0 16px 36px -14px rgba(16,42,74,.24);
  --font-base:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-hover)}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0;color:var(--c-primary-dark);font-weight:700;line-height:1.35}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
svg{display:block}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-primary);color:#fff;padding:10px 18px;border-radius:0 0 8px 0;z-index:999}
.skip-link:focus{left:0;color:#fff}

/* ---------- 容器与板块 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--paper{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--c-accent);margin-bottom:12px;
}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--c-accent);border-radius:2px}
h2{font-size:clamp(22px,2.6vw,32px);letter-spacing:-.3px}
h3{font-size:19px}
.section-head{max-width:720px;margin-bottom:40px}
.section-head p{margin-top:14px;color:var(--c-sub);font-size:16px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;border-bottom:1px solid var(--c-line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-primary-dark);font-weight:700;font-size:18px;letter-spacing:-.3px;flex:0 0 auto}
.brand:hover{color:var(--c-primary-dark)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--c-primary-dark);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:700;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.16);
}
.brand-short{display:none}
.main-nav{display:flex;align-items:center;gap:28px;margin:0 auto}
.main-nav a{
  position:relative;display:block;padding:24px 0;
  font-size:15px;font-weight:500;color:var(--c-sub);transition:color .18s ease;
}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{
  content:"";position:absolute;left:50%;bottom:16px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:2px;background:var(--c-accent);
}
.header-actions{flex:0 0 auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;color:var(--c-primary-dark);align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:200;background:#fff;
  display:none;flex-direction:column;
  padding:0 24px calc(32px + env(safe-area-inset-bottom));
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:72px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;color:var(--c-primary-dark);display:grid;place-items:center}
.drawer-nav{display:flex;flex-direction:column;padding:16px 0}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 4px;font-size:17px;color:var(--c-primary-dark);
  border-bottom:1px solid var(--c-line);font-weight:500;
}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:700}
.drawer-nav a svg{color:var(--c-weak)}
.drawer-cta{margin-top:24px}
.drawer-cta .btn{width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(30,99,200,.7)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:#C9D8EE;color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary)}
.btn-link svg{transition:transform .18s ease}
.btn-link:hover svg{transform:translateX(3px)}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--c-weak)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px;min-width:0}
.crumb li+li::before{content:"/";color:#C4D1E2}
.crumb a{color:var(--c-sub)}
.crumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.crumb [aria-current]{color:var(--c-weak);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:220px}

/* ---------- 页头（居中窄栏） ---------- */
.page-head{padding:56px 0 64px;text-align:center;background:#fff;border-bottom:1px solid var(--c-line)}
.page-head .container{max-width:840px}
.page-head h1{margin-top:14px;font-size:clamp(28px,4vw,42px);line-height:1.25;letter-spacing:-.5px}
.page-head .lead{max-width:680px;margin:20px auto 0;font-size:17px;line-height:1.85;color:var(--c-sub)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:26px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;font-size:14px;font-weight:600;background:var(--c-primary-soft);color:var(--c-primary)}
.pill--teal{background:var(--c-teal-soft);color:#0E8677}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:40px;margin-top:8px}
.timeline::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--c-primary) 0%,#C9D8EE 100%);border-radius:2px}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-36px;top:26px;
  width:14px;height:14px;border-radius:50%;background:#fff;
  border:3px solid var(--c-primary);box-shadow:0 0 0 4px #fff;
}
.tl-item:last-child::before{border-color:var(--c-accent)}
.tl-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:24px 26px;box-shadow:var(--sh-1);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.tl-card:hover{border-color:#BBD2F2;box-shadow:var(--sh-2);transform:translateY(-2px)}
.tl-step{font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--c-accent);margin-bottom:6px}
.tl-card h3{margin-bottom:8px}
.tl-card p{margin:0;color:var(--c-sub);font-size:15px;line-height:1.8}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{padding:4px 12px;border-radius:999px;font-size:13px;background:#F1F5FB;color:var(--c-sub);border:1px solid var(--c-line)}

/* ---------- 交错图文 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split+.split{margin-top:64px}
.split.reverse .split-media{order:2}
.split-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);
  background:var(--c-placeholder);box-shadow:var(--sh-1);
}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.split-body h3{margin:6px 0 14px;font-size:22px;letter-spacing:-.2px}
.split-body p{color:var(--c-sub);font-size:15.5px;line-height:1.85;margin-bottom:14px}
.split-body .tag-row{justify-content:flex-start;margin-top:4px;margin-bottom:20px}

/* ---------- 折叠说明 ---------- */
.spec-list{display:flex;flex-direction:column;gap:12px}
.spec{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.spec:hover{border-color:#C9D8EE}
.spec[open]{border-color:rgba(30,99,200,.3);box-shadow:var(--sh-1)}
.spec summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--c-primary-dark);
}
.spec summary::-webkit-details-marker{display:none}
.spec summary::marker{content:""}
.mk{position:relative;width:18px;height:18px;flex:0 0 auto;transition:transform .2s ease}
.mk::before,.mk::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:opacity .2s ease,transform .2s ease}
.mk::before{left:0;top:8px;width:18px;height:2px}
.mk::after{left:8px;top:0;width:2px;height:18px}
.spec[open] .mk{transform:rotate(180deg)}
.spec[open] .mk::after{opacity:0}
.spec-body{padding:0 24px 24px;font-size:15px;line-height:1.85;color:var(--c-sub)}
.spec-body p:last-child{margin-bottom:0}

/* ---------- 功能卡（Foundation grid 覆写） ---------- */
.card-grid{margin:0;gap:24px}
.card-grid>.card-cell{
  flex:0 0 calc(50% - 12px);
  max-width:calc(50% - 12px);
  padding:0;
}
.card{
  height:100%;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#BBD2F2}
.card .ico{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--c-primary-soft);color:var(--c-primary);margin-bottom:18px;
}
.card h3{margin-bottom:10px;font-size:18px}
.card p{color:var(--c-sub);font-size:14.5px;line-height:1.8;margin-bottom:16px}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--c-primary-soft);border:1px solid #D6E4F8;border-radius:var(--r-xl);
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px)}
.cta-band p{margin:12px 0 0;color:var(--c-sub);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-dark);color:#C7D6EA;padding-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:inset 0 0 0 2px rgba(255,255,255,.18)}
.footer-col p{font-size:13.5px;line-height:1.85;color:#A9BDD6;margin:0;max-width:280px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#C7D6EA;font-size:14px;transition:color .18s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.contact-line{font-size:14px;color:#C7D6EA}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#93A2B5;
}

/* ---------- 底部 Tab ---------- */
.tabbar{display:none}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:72px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px}
  .split{gap:36px}
}
@media (max-width:767px){
  .main-nav,.header-actions{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .brand-long{display:none}
  .brand-short{display:inline}
  body{padding-bottom:72px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .page-head{padding:40px 0 48px}
  .page-head .lead{font-size:16px}
  .split{grid-template-columns:1fr;gap:24px}
  .split.reverse .split-media{order:0}
  .split-body h3{font-size:20px}
  .timeline{padding-left:32px}
  .timeline::before{left:7px}
  .tl-item::before{left:-32px;top:24px}
  .tl-card{padding:20px}
  .spec summary{padding:18px 18px;font-size:15.5px}
  .spec-body{padding:0 18px 20px;font-size:14.5px}
  .card-grid>.card-cell{flex:0 0 100%;max-width:100%}
  .card{padding:22px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px}
  .footer-bottom{font-size:12.5px}
  .crumb [aria-current]{max-width:150px}
  .tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:130;
    height:calc(56px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    background:#fff;border-top:1px solid var(--c-line);
    box-shadow:0 -6px 18px -12px rgba(16,42,74,.4);
  }
  .tabbar a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:10px;color:var(--c-weak);position:relative;transition:color .18s ease;
  }
  .tabbar a svg{width:22px;height:22px}
  .tabbar a.is-active{color:var(--c-primary);font-weight:600}
  .tabbar a.is-active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:24px;height:2px;background:var(--c-primary);border-radius:0 0 2px 2px;
  }
}
@media (max-width:479px){
  .footer-grid{grid-template-columns:1fr}
  .brand{font-size:16px}
}