/* roulang page: index */
:root{
  --c-primary:#1F55B8;
  --c-primary-deep:#123A80;
  --c-primary-hover:#18469A;
  --c-primary-soft:#E8EFFB;
  --c-verify:#0E9F87;
  --c-verify-soft:#E4F5F1;
  --c-accent:#E8A33D;
  --c-accent-soft:#FDF3E3;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F0F4FA;
  --c-line:#E4E9F2;
  --c-text:#1B2432;
  --c-text-2:#5A6678;
  --c-text-3:#8A94A6;
  --r-card:14px;
  --r-sm:10px;
  --r-img:12px;
  --sh-base:0 1px 2px rgba(18,58,128,.06),0 8px 24px -12px rgba(18,58,128,.16);
  --sh-hover:0 12px 32px -14px rgba(18,58,128,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease),transform .18s var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
::selection{background:var(--c-primary-soft);color:var(--c-primary-deep)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.skip-link{
  position:absolute;left:16px;top:-60px;z-index:200;
  background:var(--c-primary);color:#fff;padding:10px 18px;border-radius:var(--r-sm);
  transition:top .2s var(--ease);
}
.skip-link:focus{top:12px;color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  height:72px;
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -22px rgba(18,58,128,.55)}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--c-text);letter-spacing:-.01em;white-space:nowrap}
.logo:hover{color:var(--c-primary)}
.logo-mark{width:28px;height:28px;flex:none;color:var(--c-primary)}
.logo-mark svg{display:block;width:100%;height:100%}
.main-nav{display:flex;align-items:stretch;margin-left:auto;height:72px}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;
  padding:0 16px;font-size:15px;color:var(--c-text-2);
}
.main-nav a::before{
  content:"";position:absolute;left:8px;right:8px;top:18px;bottom:18px;
  border-radius:8px;background:transparent;transition:background-color .18s var(--ease);
  z-index:-1;
}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a:hover::before{background:rgba(31,85,184,.08)}
.main-nav a.is-active{color:var(--c-primary);font-weight:500}
.main-nav a.is-active::after{
  content:"";position:absolute;left:20%;right:20%;bottom:0;height:2px;background:var(--c-primary);border-radius:2px;
}
.header-cta{margin-left:8px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;margin-left:auto;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-sm);
  color:var(--c-text);cursor:pointer;
}
.nav-toggle svg{width:22px;height:22px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-base)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:rgba(31,85,184,.08);color:var(--c-primary)}
.btn-accent{background:var(--c-accent);color:#4A2E05}
.btn-accent:hover{background:#D9942D;color:#3D2604;transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--c-primary)}
.link-arrow .arw{transition:transform .18s var(--ease)}
.link-arrow:hover .arw{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:500;line-height:1;white-space:nowrap;
}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary)}
.badge-verify{background:var(--c-verify-soft);color:#0B7A68}
.badge-accent{background:var(--c-accent-soft);color:#9A6612}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--c-surface-alt)}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.9) 42%,rgba(255,255,255,.62) 74%,rgba(255,255,255,.45) 100%);
}
.hero-inner{position:relative;z-index:2;padding:92px 24px 76px}
.hero-copy{max-width:640px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:var(--c-primary);font-weight:500;
  background:var(--c-primary-soft);border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.hero h1{font-size:44px;line-height:1.2;margin-bottom:18px;color:var(--c-text)}
.hero-sub{font-size:17px;color:var(--c-text-2);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
.trust-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:0 20px;
  font-size:13px;color:var(--c-text-2);
  border-top:1px solid rgba(31,85,184,.16);padding-top:18px;max-width:640px;
}
.trust-bar li{display:inline-flex;align-items:center;gap:8px}
.trust-bar li+li::before{content:"";width:1px;height:14px;background:var(--c-line);margin-right:20px}
.trust-bar .dot{width:6px;height:6px;border-radius:50%;background:var(--c-verify);flex:none}

/* ---------- section base ---------- */
.section{padding:96px 0}
.section-alt{background:var(--c-surface-alt)}
.section-title{font-size:30px;line-height:1.3;position:relative;padding-left:16px;margin-bottom:16px}
.section-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--c-primary)}
.section-lead{font-size:16px;color:var(--c-text-2);max-width:640px;margin-bottom:40px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ---------- pain cards ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.pain-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-base);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.pain-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.pain-num{
  width:24px;height:24px;border-radius:50%;background:var(--c-accent-soft);color:#9A6612;
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;
  margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.pain-card h3{font-size:20px;line-height:1.45;margin-bottom:10px}
.pain-card p{font-size:15px;color:var(--c-text-2);line-height:1.75}

/* ---------- solution ---------- */
.solution-list{display:grid;gap:56px}
.solution-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.solution-row.flip .solution-media{order:2}
.solution-index{
  font-size:32px;font-weight:700;color:rgba(31,85,184,.2);
  font-variant-numeric:tabular-nums;line-height:1;margin-bottom:12px;
}
.solution-row h3{font-size:20px;line-height:1.45;margin-bottom:12px}
.solution-row p{font-size:16px;color:var(--c-text-2);margin-bottom:18px}
.solution-media{
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  background:var(--c-surface);aspect-ratio:16/9;box-shadow:var(--sh-base);
}
.solution-media img{width:100%;height:100%;object-fit:cover}

/* ---------- stats ---------- */
.stats-section{border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);background:var(--c-surface-alt)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.stat{padding:8px 4px;position:relative}
.stat-value{
  font-size:48px;line-height:1.1;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-value small{font-size:18px;font-weight:500;margin-left:4px;color:var(--c-text-2)}
.stat-label{font-size:13px;color:var(--c-text-2);margin-top:10px;line-height:1.6}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .2s var(--ease),transform .2s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.news-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-base);color:inherit;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#D3DDEE;color:inherit}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-alt)}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{
  font-size:17px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s var(--ease);
}
.news-card:hover .news-title{color:var(--c-primary)}
.news-summary{
  font-size:14px;line-height:1.7;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin:0;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);border-top:1px solid var(--c-line);padding-top:14px;
}
.news-arrow{color:var(--c-primary);font-size:16px;transition:transform .18s var(--ease)}
.news-card:hover .news-arrow{transform:translateX(4px)}
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--r-card);
  min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;background:var(--c-surface);color:var(--c-text-2);font-size:14px;text-align:center;padding:24px;
}
.empty-state svg{width:28px;height:28px;color:var(--c-text-3)}

/* ---------- testimonials ---------- */
.voice-grid{display:grid;grid-template-columns:1.5fr 1fr;grid-template-rows:auto auto;gap:var(--gap)}
.voice-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-base);
  display:flex;flex-direction:column;gap:16px;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.voice-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.voice-card.lead{grid-row:span 2;justify-content:center}
.voice-mark{font-size:44px;line-height:1;color:rgba(31,85,184,.14);font-weight:700}
.voice-text{font-size:16px;line-height:1.8;color:var(--c-text);margin:0}
.voice-card.lead .voice-text{font-size:18px}
.voice-person{display:flex;align-items:center;gap:12px;margin-top:auto}
.voice-avatar{width:56px;height:56px;border-radius:50%;overflow:hidden;flex:none;background:var(--c-primary-soft)}
.voice-avatar img{width:100%;height:100%;object-fit:cover}
.voice-name{font-size:15px;font-weight:600}
.voice-org{font-size:13px;color:var(--c-text-2)}

/* ---------- faq ---------- */
.faq-list{max-width:840px;display:grid;gap:12px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.faq-item[open]{border-color:#CFDCF2;box-shadow:var(--sh-base)}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 24px;font-size:16px;font-weight:500;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  width:22px;height:22px;flex:none;position:relative;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .2s var(--ease);
}
.faq-icon svg{width:12px;height:12px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-text-2)}

/* ---------- cta ---------- */
.cta-section{background:var(--c-primary-deep);color:#fff;padding:80px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:start}
.cta-copy h2{font-size:30px;line-height:1.3;margin-bottom:16px;color:#fff}
.cta-copy p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);margin-bottom:24px}
.cta-points{display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.86)}
.cta-points .tick{width:18px;height:18px;flex:none;margin-top:4px;color:#6FE0CB}
.form-card{
  background:var(--c-surface);border-radius:var(--r-card);padding:28px;
  box-shadow:0 24px 60px -30px rgba(0,0,0,.5);
}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-note{font-size:13px;color:var(--c-text-2);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:500;margin-bottom:6px;color:var(--c-text)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:var(--c-surface);padding:0 14px;height:46px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(31,85,184,.22);
}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3)}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--c-text-2);margin-bottom:20px}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--c-primary);flex:none}
.form-error{font-size:13px;color:#C8433A;margin-top:6px;display:none}
.form-error.is-on{display:block}
.toast{
  position:fixed;top:88px;left:50%;transform:translate(-50%,-12px);
  background:var(--c-surface);border-left:3px solid var(--c-verify);
  border-radius:var(--r-sm);box-shadow:0 18px 40px -20px rgba(18,58,128,.55);
  padding:14px 20px;font-size:14px;color:var(--c-text);z-index:200;
  opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease);
  max-width:90vw;
}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.88);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo-mark{color:#8FB6F5}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:320px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-badges span{
  font-size:12px;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.1);color:rgba(255,255,255,.85);
}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff}
.footer-col p{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:10px;line-height:1.7}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- mobile tabbar ---------- */
.tabbar{display:none}
.drawer,.drawer-mask{display:none}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero h1{font-size:40px}
  .section{padding:80px 0}
}
@media (max-width:991px){
  body{padding-bottom:76px}
  .main-nav,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .hero-inner{padding:64px 24px 56px}
  .hero h1{font-size:34px}
  .hero-sub{font-size:16px}
  .section{padding:72px 0}
  .section-title{font-size:26px}
  .pain-grid{grid-template-columns:repeat(2,1fr)}
  .solution-row{grid-template-columns:1fr;gap:24px}
  .solution-row.flip .solution-media{order:0}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .voice-grid{grid-template-columns:1fr;grid-template-rows:auto}
  .voice-card.lead{grid-row:auto}
  .cta-section{padding:64px 0}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:95;
    background:var(--c-surface);border-top:1px solid var(--c-line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tabbar a{
    flex:1;min-height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:3px;font-size:11px;color:var(--c-text-3);position:relative;
  }
  .tabbar a svg{width:22px;height:22px}
  .tabbar a.is-active{color:var(--c-primary)}
  .tabbar a.is-active::before{
    content:"";position:absolute;top:0;width:34px;height:2px;border-radius:0 0 2px 2px;background:var(--c-primary);
  }
  .drawer-mask{
    display:block;position:fixed;inset:0;background:rgba(0,0,0,.4);
    opacity:0;pointer-events:none;transition:opacity .2s var(--ease);z-index:110;
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto}
  .drawer{
    display:flex;flex-direction:column;gap:6px;
    position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:320px;z-index:120;
    background:var(--c-surface);padding:22px;overflow-y:auto;
    transform:translateX(100%);transition:transform .22s var(--ease);
    box-shadow:-16px 0 40px -24px rgba(18,58,128,.5);
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
  .drawer-head .logo{font-size:16px}
  .drawer-close{
    width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-line);
    background:var(--c-surface);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--c-text-2);
  }
  .drawer a.drawer-link{
    display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--r-sm);
    font-size:15px;color:var(--c-text-2);
  }
  .drawer a.drawer-link:hover{background:var(--c-surface-alt);color:var(--c-primary)}
  .drawer a.drawer-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:500}
  .drawer .btn{margin-top:14px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .hero-inner{padding:52px 16px 48px}
  .hero h1{font-size:30px}
  .hero-actions .btn{flex:1 1 auto}
  .trust-bar{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px;font-size:12.5px}
  .trust-bar li+li::before{display:none}
  .section{padding:56px 0}
  .section-title{font-size:23px}
  .section-lead{margin-bottom:28px}
  .pain-grid{grid-template-columns:1fr}
  .pain-card{padding:22px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat-value{font-size:36px}
  .news-grid{grid-template-columns:1fr}
  .voice-grid{display:grid;grid-auto-flow:column;grid-auto-columns:82%;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}
  .voice-card{scroll-snap-align:start}
  .faq-item summary{font-size:15px;padding:14px 18px}
  .faq-body{padding:0 18px 20px}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --c-primary:#1F55B8;
  --c-primary-deep:#123A80;
  --c-primary-hover:#18469A;
  --c-primary-soft:#E8EFFB;
  --c-verify:#0E9F87;
  --c-verify-soft:#E4F5F1;
  --c-accent:#E8A33D;
  --c-accent-soft:#FDF3E3;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F0F4FA;
  --c-line:#E4E9F2;
  --c-text:#1B2432;
  --c-text-2:#5A6678;
  --c-text-3:#8A94A6;
  --danger:#C8433A;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(18,58,128,.06), 0 8px 24px -12px rgba(18,58,128,.16);
  --shadow-hover:0 12px 32px -14px rgba(18,58,128,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--c-primary);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--c-primary-hover)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3}
h1{font-size:34px;line-height:1.25}
h2{font-size:30px}
h3{font-size:20px;line-height:1.45}
h4{font-size:16px}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-primary);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0;color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1440px){:root{--container:1280px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(18,58,128,.06),0 10px 26px -18px rgba(18,58,128,.35)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);font-weight:700;font-size:18px;letter-spacing:-.01em}
.logo:hover{color:var(--c-primary)}
.logo-mark{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)}
.logo-mark svg{width:20px;height:20px}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;
  border-radius:8px;color:var(--c-text-2);font-size:15px;font-weight:500;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.main-nav a:hover{color:var(--c-primary);background:rgba(31,85,184,.08)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{content:"";position:absolute;left:20%;right:20%;bottom:-18px;height:2px;background:var(--c-primary);border-radius:2px}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:10px;color:var(--c-text-2);border:1px solid var(--c-line)}
.nav-toggle:hover{color:var(--c-primary);border-color:var(--c-primary)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;letter-spacing:.01em;border:1px solid transparent;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:rgba(31,85,184,.08);color:var(--c-primary)}
.btn-accent{background:var(--c-accent);color:#3A2A08}
.btn-accent:hover{background:#DC9427;color:#3A2A08;transform:translateY(-1px)}
.btn-white{background:#fff;color:var(--c-primary-deep)}
.btn-white:hover{background:#EAF0FB;color:var(--c-primary-deep)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:9px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:500;font-size:15px}
.link-arrow svg{width:14px;height:14px;transition:transform .18s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:1}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary)}
.badge-verify{background:var(--c-verify-soft);color:#0A7A67}
.badge-accent{background:var(--c-accent-soft);color:#8A5C10}

/* ---------- drawer / mask ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:118;opacity:0;pointer-events:none;transition:opacity .2s var(--ease)}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:320px;z-index:120;
  background:#fff;border-left:1px solid var(--c-line);
  transform:translateX(102%);transition:transform .24s var(--ease);
  padding:22px 20px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.drawer-close{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--c-line);color:var(--c-text-2)}
.drawer a.drawer-link{display:flex;align-items:center;height:50px;padding:0 14px;border-radius:10px;color:var(--c-text);font-weight:500;border:1px solid transparent}
.drawer a.drawer-link:hover{background:var(--c-surface-alt);color:var(--c-primary)}
.drawer a.drawer-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}
.drawer .btn{margin-top:12px}

/* ---------- mobile tab ---------- */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:110;background:#fff;
  border-top:1px solid var(--c-line);height:60px;padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab a{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;min-height:48px;color:var(--c-text-3);font-size:11px;line-height:1.2;
}
.mobile-tab a svg{width:22px;height:22px}
.mobile-tab a.is-active{color:var(--c-primary);font-weight:600}
.mobile-tab a.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:28px;height:2px;background:var(--c-primary);border-radius:2px}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;display:flex;align-items:center;min-height:260px;padding:48px 0;
  background-image:linear-gradient(rgba(255,255,255,.9),rgba(255,255,255,.9)),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;border-bottom:1px solid var(--c-line);
}
.page-hero-inner{max-width:760px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-text-2);margin-bottom:16px}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-text-3)}
.breadcrumb .current{color:var(--c-text-3)}
.page-hero h1{margin-bottom:14px}
.page-hero .lead{font-size:17px;line-height:1.8;color:var(--c-text-2);max-width:640px;margin:0}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section-alt{background:var(--c-surface-alt);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:720px;margin-bottom:40px}
.section-title{position:relative;padding-left:16px;font-size:30px;margin-bottom:14px}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary)}
.section-lead{color:var(--c-text-2);font-size:16px;margin:0}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--c-primary-soft)}
.tl-item{position:relative;margin-bottom:20px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{content:"";position:absolute;left:-33px;top:26px;width:14px;height:14px;border-radius:50%;background:var(--c-primary);border:3px solid #fff;box-shadow:0 0 0 2px var(--c-primary-soft)}
.tl-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px 26px;transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.tl-num{display:inline-block;font-size:13px;font-weight:600;color:var(--c-primary);letter-spacing:.08em;font-variant-numeric:tabular-nums;margin-bottom:6px}
.tl-card h3{margin-bottom:8px}
.tl-card p{color:var(--c-text-2);font-size:15px;margin:0}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}

/* ---------- split cards ---------- */
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.split-card{display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.split-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.split-card img{height:100%;min-height:220px;width:100%;object-fit:cover;border-radius:0}
.split-body{padding:26px}
.split-body h3{margin-bottom:10px}
.split-body p{color:var(--c-text-2);font-size:15px;margin-bottom:14px}

/* ---------- step list ---------- */
.step-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.step-row{display:flex;gap:18px;padding:22px 26px;border-bottom:1px solid var(--c-line)}
.step-row:last-child{border-bottom:0}
.step-idx{flex:0 0 28px;font-size:15px;font-weight:600;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.75}
.step-row h3{font-size:17px;margin-bottom:6px}
.step-row p{color:var(--c-text-2);font-size:15px;margin:0}

/* ---------- FAQ ---------- */
.faq{max-width:860px}
.faq details{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:12px;overflow:hidden}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 24px;font-size:16px;font-weight:500;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .plus{flex:0 0 auto;width:12px;height:12px;position:relative;color:var(--c-primary)}
.faq summary .plus::before,.faq summary .plus::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .2s var(--ease)}
.faq summary .plus::before{left:0;right:0;top:5px;height:2px}
.faq summary .plus::after{top:0;bottom:0;left:5px;width:2px}
.faq details[open] summary .plus::after{transform:rotate(90deg)}
.faq details[open] summary{color:var(--c-primary)}
.faq .faq-body{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--c-text-2)}

/* ---------- CTA ---------- */
.cta-section{background:var(--c-primary-deep);color:#fff;padding:80px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cta-copy h2{color:#fff;margin-bottom:14px}
.cta-copy p{color:rgba(255,255,255,.88);font-size:16px;max-width:460px}
.cta-points{margin-top:26px;display:grid;gap:10px}
.cta-points div{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.88);font-size:15px}
.cta-points svg{width:18px;height:18px;flex:0 0 auto;color:#7FD9C8;margin-top:4px}
.form-card{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:0 20px 50px -24px rgba(6,24,58,.55);color:var(--c-text)}
.form-card h3{font-size:18px;margin-bottom:6px}
.form-card .form-hint{font-size:13px;color:var(--c-text-3);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:500;margin-bottom:6px;color:var(--c-text-2)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--radius-sm);background:#fff;
  padding:0 14px;height:46px;font-size:15px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(31,85,184,.22)}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--danger);box-shadow:none}
.field .err{display:none;font-size:13px;color:var(--danger);margin-top:6px}
.field.has-error .err{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;margin:6px 0 18px;font-size:13px;color:var(--c-text-2)}
.check-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--c-primary)}
.form-note{margin-top:12px;font-size:13px;color:var(--c-verify);min-height:18px}

/* ---------- toast ---------- */
.toast{
  position:fixed;top:20px;left:50%;transform:translate(-50%,-16px);z-index:200;
  background:#fff;box-shadow:var(--shadow-hover);border-radius:10px;padding:12px 18px;
  font-size:14px;border-left:3px solid var(--c-verify);opacity:0;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.88);padding:64px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .logo{color:#fff;font-size:17px;margin-bottom:14px}
.site-footer .logo-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-brand p{color:rgba(255,255,255,.75);max-width:340px;line-height:1.8}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-badges span{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;background:rgba(255,255,255,.12);color:rgba(255,255,255,.86)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.75)}
.footer-col a:hover{color:#fff}
.footer-col p{color:rgba(255,255,255,.75);margin-bottom:10px}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.68)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
}
@media (max-width:991px){
  body{padding-bottom:76px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn{display:none}
  .mobile-tab{display:flex}
  .section{padding:64px 0}
  h1{font-size:30px}
  .page-hero{min-height:200px;padding:36px 0}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .split-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-section{padding:64px 0}
}
@media (max-width:767px){
  .split-card{grid-template-columns:1fr}
  .split-card img{min-height:180px;height:200px}
  .section{padding:56px 0}
  h2,.section-title{font-size:25px}
  .timeline{padding-left:26px}
  .tl-item::before{left:-25px;top:22px;width:12px;height:12px}
  .timeline::before{left:5px}
  .tl-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  h1{font-size:27px}
  .section-title{font-size:23px}
  .header-inner{height:64px}
  .logo{font-size:16px}
  .form-card{padding:20px}
  .step-row{padding:18px}
  .faq summary{padding:14px 18px;font-size:15px}
  .faq .faq-body{padding:0 18px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: article */
:root{
  --c-primary:#1F55B8;--c-primary-deep:#123A80;--c-primary-hover:#18469A;--c-primary-soft:#E8EFFB;
  --c-verify:#0E9F87;--c-verify-soft:#E4F5F1;
  --c-accent:#E8A33D;--c-accent-soft:#FDF3E3;
  --c-bg:#F5F7FB;--c-surface:#FFFFFF;--c-surface-alt:#F0F4FA;
  --c-line:#E4E9F2;--c-text:#1B2432;--c-text-2:#5A6678;--c-text-3:#8A94A6;
  --r-card:14px;--r-sm:10px;--r-img:12px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(18,58,128,.06),0 8px 24px -12px rgba(18,58,128,.16);
  --sh-2:0 12px 32px -14px rgba(18,58,128,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--c-bg);color:var(--c-text);font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
strong{font-weight:600}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:#fff;padding:10px 16px;border-radius:var(--r-sm);box-shadow:var(--sh-1);font-size:14px;color:var(--c-primary)}
.skip-link:focus{left:16px;top:12px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-sm);font-size:15px;font-weight:500;cursor:pointer;white-space:nowrap;transition:background-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-secondary{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-secondary:hover{background:rgba(31,85,184,.08)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--c-primary)}
.btn-text svg{width:14px;height:14px;transition:transform .18s var(--ease)}
.btn-text:hover svg{transform:translateX(4px)}
.btn-text-left:hover svg{transform:translateX(-4px)}

/* 徽章 / 标签 */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:500}
.badge-cat{background:var(--c-primary-soft);color:var(--c-primary)}
.badge-verify{background:var(--c-verify-soft);color:#0A7C69}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-surface);font-size:13px;color:var(--c-text-2);transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease)}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .2s var(--ease)}
.site-header.is-scrolled{box-shadow:0 10px 28px -20px rgba(18,58,128,.5)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--c-text)}
.logo-mark{width:32px;height:32px;display:grid;place-items:center;border:1px solid #D6E2F7;border-radius:9px;background:var(--c-primary-soft);color:var(--c-primary)}
.logo-mark svg{width:19px;height:19px}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:8px;font-size:15px;font-weight:500;color:var(--c-text-2);transition:color .18s var(--ease),background-color .18s var(--ease)}
.main-nav a:hover{color:var(--c-primary);background:rgba(31,85,184,.08)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{content:"";position:absolute;left:20%;right:20%;bottom:-19px;height:2px;border-radius:2px;background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;color:var(--c-text-2);cursor:pointer}
.nav-toggle svg{width:20px;height:20px}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;pointer-events:none}
.drawer-mask{position:absolute;inset:0;background:rgba(0,0,0,.4);opacity:0;transition:opacity .22s var(--ease)}
.drawer-panel{position:absolute;top:0;right:0;width:82vw;max-width:320px;height:100%;padding:20px;background:#fff;overflow:auto;transform:translateX(100%);transition:transform .22s var(--ease)}
body.drawer-open .drawer{visibility:visible;pointer-events:auto}
body.drawer-open .drawer-mask{opacity:1}
body.drawer-open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;color:var(--c-text-2);cursor:pointer}
.drawer-close svg{width:16px;height:16px}
.drawer-nav{display:grid;gap:4px;margin:18px 0 22px}
.drawer-nav a{padding:12px 12px;border-radius:var(--r-sm);font-size:15px;color:var(--c-text-2);transition:background-color .18s var(--ease),color .18s var(--ease)}
.drawer-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary)}

/* 底部 Tab */
.tab-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;background:#fff;border-top:1px solid var(--c-line);padding-bottom:env(safe-area-inset-bottom)}
.tab-bar-inner{display:grid;grid-template-columns:repeat(4,1fr)}
.tab-item{position:relative;min-height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;color:var(--c-text-3);transition:color .18s var(--ease)}
.tab-item svg{width:22px;height:22px}
.tab-item.is-active{color:var(--c-primary)}
.tab-item.is-active::before{content:"";position:absolute;top:0;left:22%;right:22%;height:2px;background:var(--c-primary);border-radius:2px}

/* 面包屑 */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:12px 0;font-size:13px;color:var(--c-text-2)}
.breadcrumb a{color:var(--c-text-2);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--c-primary)}
.bc-sep{font-size:12px;color:var(--c-text-3)}
.bc-current{max-width:24ch;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;color:var(--c-text-3)}

/* 文章头 */
.article-head{max-width:880px;padding-bottom:4px}
.article-head h1{margin-top:16px;font-size:34px;line-height:1.25;font-weight:700;letter-spacing:-.01em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--c-text-2);font-variant-numeric:tabular-nums}
.dot{width:3px;height:3px;border-radius:50%;background:var(--c-text-3)}
.article-cover{margin-top:28px;border:1px solid var(--c-line);border-radius:var(--r-img);overflow:hidden;background:var(--c-surface)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{padding:12px;font-size:13px;color:var(--c-text-3);text-align:center}

/* 正文布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;padding:40px 0 72px}
.article-main{min-width:0}
.article-body{max-width:780px;margin:0 auto;font-size:17px;line-height:1.85}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{position:relative;margin:38px 0 16px;padding-left:12px;border-left:4px solid var(--c-primary);font-size:22px;line-height:1.4;font-weight:700;scroll-margin-top:88px}
.article-body h3{margin:28px 0 12px;font-size:19px;line-height:1.5;font-weight:700;scroll-margin-top:88px}
.article-body h4{margin:22px 0 10px;font-size:17px;font-weight:600}
.article-body ul{margin:16px 0}
.article-body ul li{position:relative;margin:10px 0;padding-left:20px}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.68em;width:7px;height:7px;border-radius:2px;background:var(--c-primary)}
.article-body ol{counter-reset:olc;margin:16px 0}
.article-body ol li{position:relative;margin:10px 0;padding-left:28px;counter-increment:olc}
.article-body ol li::before{content:counter(olc) ".";position:absolute;left:0;color:var(--c-primary);font-weight:600}
.article-body blockquote{margin:22px 0;padding:16px 20px;border-left:3px solid var(--c-primary);border-radius:0 var(--r-sm) var(--r-sm) 0;background:var(--c-primary-soft);font-size:16px}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-primary-hover)}
.article-body img{margin:22px auto;border-radius:var(--r-img)}
.article-body figure{margin:22px 0}
.article-body figcaption{margin-top:8px;font-size:13px;color:var(--c-text-3);text-align:center}
.article-body code{padding:1px 6px;border:1px solid var(--c-line);border-radius:4px;background:var(--c-surface-alt);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}
.article-body pre{margin:20px 0;padding:16px 18px;border-radius:var(--r-img);background:#0F1B33;color:#E8EFFB;overflow-x:auto;font-size:14px;line-height:1.7}
.article-body pre code{padding:0;border:0;background:none;color:inherit}
.article-body table{width:100%;margin:20px 0;border-collapse:collapse;font-size:15px}
.article-body th,.article-body td{padding:10px 14px;border:1px solid var(--c-line);text-align:left}
.article-body thead th{background:var(--c-surface-alt);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFBFE}
@media (max-width:767px){
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}

/* 空态 */
.empty-state{padding:48px 24px;border:1px dashed var(--c-line);border-radius:var(--r-card);background:var(--c-surface-alt);text-align:center}
.empty-state svg{width:32px;height:32px;margin:0 auto 12px;color:var(--c-text-3)}
.empty-state p{margin-bottom:18px;font-size:15px;color:var(--c-text-2)}

/* 侧栏 */
.article-aside{display:none}
@media (min-width:1200px){.article-aside{display:block}}
.aside-inner{position:sticky;top:96px;display:grid;gap:16px}
.aside-card{padding:20px;border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);box-shadow:var(--sh-1)}
.aside-title{margin-bottom:12px;font-size:15px;font-weight:600}
.aside-list{display:grid;gap:2px}
.aside-list a{display:block;padding:8px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;font-size:14px;color:var(--c-text-2);transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease)}
.aside-list a:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.aside-list a.is-current{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-soft);font-weight:500}
.aside-note{background:var(--c-verify-soft);border-color:#C9E9E1}
.aside-note p{font-size:13px;line-height:1.75;color:#0A6B5B}

/* 文末模块 */
.article-foot{max-width:780px;margin:44px auto 0;padding-top:28px;border-top:1px solid var(--c-line)}
.post-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.post-tags-label{font-size:13px;color:var(--c-text-3)}
.post-share{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px}
.post-share-label{font-size:13px;color:var(--c-text-3)}
.share-btn{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;font-size:13px;color:var(--c-text-2);transition:border-color .18s var(--ease),color .18s var(--ease)}
.share-btn:hover{border-color:var(--c-primary);color:var(--c-primary)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
.post-nav-card{padding:18px 20px;border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);box-shadow:var(--sh-1);transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)}
.post-nav-card:hover{transform:translateY(-2px);border-color:#D5E1F6;box-shadow:var(--sh-2)}
.post-nav-dir{display:block;margin-bottom:6px;font-size:12px;color:var(--c-text-3)}
.post-nav-title{font-size:15px;font-weight:600;line-height:1.5}
.post-nav-card:hover .post-nav-title{color:var(--c-primary)}
.post-nav-note{padding:18px 20px;border:1px dashed var(--c-line);border-radius:var(--r-card);font-size:13px;color:var(--c-text-3)}
.post-related{margin-top:56px}
.post-related h2{position:relative;margin-bottom:20px;padding-left:12px;border-left:4px solid var(--c-primary);font-size:20px;line-height:1.2;font-weight:700}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.rcard{display:flex;flex-direction:column;border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.rcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.rcard img{width:100%;aspect-ratio:16/9;object-fit:cover}
.rcard-body{display:flex;flex-direction:column;gap:8px;flex:1;padding:16px}
.rcard h3{font-size:15px;font-weight:600;line-height:1.5}
.rcard:hover h3{color:var(--c-primary)}
.rcard p{font-size:13px;line-height:1.7;color:var(--c-text-2)}
.post-back{margin-top:32px}

/* CTA 与表单 */
.cta-section{padding:80px 0;background:var(--c-primary-deep);color:#fff}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:48px;align-items:start}
.cta-copy h2{font-size:30px;line-height:1.3;font-weight:700}
.cta-copy p{max-width:44ch;margin-top:14px;font-size:16px;color:rgba(255,255,255,.82)}
.cta-points{display:grid;gap:10px;margin-top:22px}
.cta-points li{position:relative;padding-left:22px;font-size:15px;color:rgba(255,255,255,.9)}
.cta-points li::before{content:"";position:absolute;left:0;top:.58em;width:8px;height:8px;border-radius:50%;background:var(--c-verify)}
.cta-form{padding:28px;border-radius:var(--r-card);background:#fff;color:var(--c-text);box-shadow:0 26px 60px -34px rgba(4,16,40,.7)}
.field{margin-bottom:16px}
.field label{display:block;margin-bottom:6px;font-size:13px;font-weight:500;color:var(--c-text-2)}
.field input,.field select,.field textarea{width:100%;height:46px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;transition:border-color .18s var(--ease),box-shadow .18s var(--ease)}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(31,85,184,.16)}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#C8433A}
.field-error{margin-top:6px;font-size:13px;color:#C8433A}
.check{display:flex;align-items:flex-start;gap:10px;margin:4px 0 18px;font-size:13px;color:var(--c-text-2)}
.check input{width:18px;height:18px;margin-top:2px;accent-color:var(--c-primary)}
.check.has-error span{color:#C8433A}
.form-hint{margin-top:12px;font-size:12px;text-align:center;color:var(--c-text-3)}
.toast{position:fixed;top:84px;left:50%;z-index:120;padding:12px 18px;border-left:3px solid var(--c-verify);border-radius:var(--r-sm);background:#fff;box-shadow:var(--sh-2);font-size:14px;opacity:0;transform:translateX(-50%) translateY(-8px);transition:opacity .2s var(--ease),transform .2s var(--ease)}
.toast.is-visible{opacity:1;transform:translateX(-50%) translateY(0)}

/* 页脚 */
.site-footer{padding:64px 0 24px;background:var(--c-primary-deep);color:rgba(255,255,255,.88)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:#fff}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);color:#fff}
.footer-brand p{margin-top:14px;max-width:34ch;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72)}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-badges span{padding:4px 10px;border:1px solid rgba(255,255,255,.22);border-radius:var(--r-pill);font-size:12px;color:rgba(255,255,255,.8)}
.footer-col h4{font-size:15px;font-weight:600;color:#fff}
.footer-col ul{display:grid;gap:10px;margin-top:14px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s var(--ease)}
.footer-col a:hover{color:#fff}
.footer-col p{margin-top:12px;font-size:14px;color:rgba(255,255,255,.72)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);font-size:13px;color:rgba(255,255,255,.62)}

/* 响应式 */
@media (max-width:1199px){
  .article-body{margin:0 auto}
}
@media (max-width:991px){
  body{padding-bottom:76px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .tab-bar{display:block}
  .article-head h1{font-size:30px}
  .article-layout{padding:32px 0 56px}
  .cta-section{padding:64px 0}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .cta-copy h2{font-size:26px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .post-nav{grid-template-columns:1fr}
  .article-body{font-size:16px}
  .article-body h2{font-size:20px}
  .container{padding:0 16px}
}
@media (max-width:575px){
  .header-actions .btn-primary{display:none}
  .article-head h1{font-size:28px}
  .related-grid{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}
  .rcard{flex:0 0 78%;scroll-snap-align:start}
  .footer-grid{grid-template-columns:1fr}
  .cta-form{padding:20px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: category2 */
:root{
  --c-primary:#1F55B8;
  --c-primary-deep:#123A80;
  --c-primary-hover:#18469A;
  --c-primary-soft:#E8EFFB;
  --c-verify:#0E9F87;
  --c-verify-soft:#E4F5F1;
  --c-accent:#E8A33D;
  --c-accent-soft:#FDF3E3;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F0F4FA;
  --c-line:#E4E9F2;
  --c-text:#1B2432;
  --c-text-2:#5A6678;
  --c-text-3:#8A94A6;
  --c-danger:#C8433A;
  --r-card:14px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(18,58,128,.06), 0 8px 24px -12px rgba(18,58,128,.16);
  --shadow-hover:0 12px 32px -14px rgba(18,58,128,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  padding-bottom:0;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--c-primary);text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease)}
a:hover{color:var(--c-primary-hover)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--c-text)}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--c-primary);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;font-size:14px;
}
.skip-link:focus{left:0;color:#fff}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px -12px rgba(18,58,128,.28)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-text);letter-spacing:-.01em;white-space:nowrap}
.logo:hover{color:var(--c-primary)}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:9px;
  background:var(--c-primary-soft);color:var(--c-primary);flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;
  border-radius:8px;font-size:15px;color:var(--c-text-2);font-weight:500;
}
.main-nav a:hover{color:var(--c-primary);background:rgba(31,85,184,.08)}
.main-nav a.is-active{color:var(--c-primary);font-weight:600}
.main-nav a.is-active::after{
  content:"";position:absolute;left:20%;right:20%;bottom:-1px;height:2px;border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border:1px solid var(--c-line);background:#fff;border-radius:10px;cursor:pointer;color:var(--c-text-2);
}
.menu-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.menu-toggle svg{width:20px;height:20px}

/* ============ drawer ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.4);opacity:0;visibility:hidden;
  transition:opacity .2s var(--ease),visibility .2s var(--ease);z-index:150;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:320px;background:#fff;z-index:160;
  transform:translateX(100%);transition:transform .22s var(--ease);
  padding:20px;display:flex;flex-direction:column;gap:8px;box-shadow:-12px 0 32px -18px rgba(18,58,128,.35);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--c-line);margin-bottom:8px}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:10px;cursor:pointer;color:var(--c-text-2)}
.drawer-close:hover{color:var(--c-primary);border-color:var(--c-primary)}
.drawer nav{display:flex;flex-direction:column;gap:2px}
.drawer nav a{padding:13px 12px;border-radius:10px;font-size:15px;color:var(--c-text-2);font-weight:500}
.drawer nav a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer nav a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}
.drawer .btn{margin-top:14px;width:100%}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:500;cursor:pointer;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.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 24px -14px rgba(18,58,128,.5)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:rgba(31,85,184,.08);color:var(--c-primary)}
.btn-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:500;font-size:15px}
.link-arrow svg{width:14px;height:14px;transition:transform .18s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ============ badges ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;letter-spacing:0;
}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary)}
.badge-verify{background:var(--c-verify-soft);color:#0A7A68}
.badge-warn{background:var(--c-accent-soft);color:#A86D14}

/* ============ page head ============ */
.page-head{
  position:relative;overflow:hidden;
  background:var(--c-primary-soft);
  border-bottom:1px solid var(--c-line);
  padding:32px 0 46px;
}
.page-head .grid-texture{
  position:absolute;right:0;bottom:0;width:min(420px,58%);height:130px;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(31,85,184,.06) 0 1px,transparent 1px 14px),
    repeating-linear-gradient(90deg,rgba(31,85,184,.06) 0 1px,transparent 1px 14px);
  opacity:.6;
  -webkit-mask-image:linear-gradient(to left,#000 25%,transparent 100%);
  mask-image:linear-gradient(to left,#000 25%,transparent 100%);
}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-text-2);margin-bottom:18px}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-text-3)}
.breadcrumb .current{color:var(--c-primary);font-weight:500}
.page-head h1{font-size:34px;line-height:1.25;max-width:820px;margin-bottom:14px}
.page-head .lead{font-size:16px;line-height:1.8;color:var(--c-text-2);max-width:760px}
.page-head .head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}

/* ============ sections ============ */
.section{padding:96px 0}
.section-alt{background:var(--c-surface-alt);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-title{position:relative;font-size:30px;line-height:1.3;padding-left:14px;margin-bottom:12px}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary)}
.section-lead{font-size:16px;color:var(--c-text-2);line-height:1.8}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px}

/* ============ panel grid ============ */
.panel-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.panel{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.panel:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.panel-lg{display:flex;flex-direction:column;gap:14px}
.panel-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);
}
.panel-icon svg{width:22px;height:22px}
.panel-title{font-size:20px;line-height:1.45}
.panel-text{font-size:15px;line-height:1.8;color:var(--c-text-2)}
.panel-verify{background:var(--c-verify-soft);border-color:#C9E9E2}
.panel-verify .panel-icon{background:rgba(14,159,135,.14);color:#0A7A68}
.panel-warn{background:var(--c-accent-soft);border-color:#F2DEBC}
.panel-warn .panel-icon{background:rgba(232,163,61,.18);color:#A86D14}
.panel-tag{margin-bottom:4px}

/* ============ compare table ============ */
.table-wrap{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;
}
.table-scroll{overflow-x:auto}
.table-wrap::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:36px;pointer-events:none;
  background:linear-gradient(to left,rgba(255,255,255,.95),rgba(255,255,255,0));
  opacity:0;transition:opacity .2s var(--ease);
}
.table-wrap.is-scrollable::after{opacity:1}
.compare-table{width:100%;min-width:720px;border-collapse:collapse;font-size:15px}
.compare-table caption{text-align:left;padding:20px 24px 0;font-size:14px;color:var(--c-text-3)}
.compare-table th,.compare-table td{padding:0 24px;height:48px;text-align:left;border-bottom:1px solid var(--c-line);vertical-align:middle}
.compare-table thead th{
  background:var(--c-surface-alt);font-size:13px;font-weight:600;color:var(--c-text-2);
  letter-spacing:.02em;height:52px;
}
.compare-table tbody tr:nth-child(even){background:#FAFCFF}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table td:first-child{font-weight:600;color:var(--c-text)}
.compare-table td{color:var(--c-text-2);line-height:1.6}

/* ============ figure block ============ */
.figure-block{
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow);
}
.figure-media{overflow:hidden;border-radius:12px;border:1px solid var(--c-line);background:var(--c-surface-alt)}
.figure-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.figure-body h3{font-size:20px;margin-bottom:12px}
.figure-body p{font-size:15px;color:var(--c-text-2);line-height:1.8;margin-bottom:18px}
.plain-list{border-top:1px solid var(--c-line);margin-top:6px}
.plain-list li{
  display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--c-line);font-size:15px;color:var(--c-text-2);line-height:1.7;
}
.plain-list .num{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);
  font-size:12px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;margin-top:2px;
}
.plain-list strong{color:var(--c-text);font-weight:600}

/* ============ checklist ============ */
.checklist{display:grid;grid-template-columns:1fr 1fr;gap:8px 32px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:12px 28px;box-shadow:var(--shadow)}
.checklist li{display:flex;gap:12px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--c-line);font-size:16px;line-height:1.7}
.checklist li:nth-last-child(-n+2){border-bottom:none}
.check-icon{flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--c-verify-soft);color:var(--c-verify);display:inline-flex;align-items:center;justify-content:center;margin-top:3px}
.check-icon svg{width:14px;height:14px}
.checklist small{display:block;font-size:14px;color:var(--c-text-2);margin-top:4px;line-height:1.7}

/* ============ faq ============ */
.faq{max-width:900px;display:grid;gap:12px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow);overflow:hidden;transition:box-shadow .18s var(--ease)}
.faq-item[open]{box-shadow:var(--shadow-hover)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 24px;cursor:pointer;list-style:none;font-size:16px;font-weight:500;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-plus{flex:0 0 auto;position:relative;width:14px;height:14px;transition:transform .18s var(--ease);color:var(--c-primary)}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-plus::before{left:0;right:0;top:6px;height:2px}
.faq-plus::after{top:0;bottom:0;left:6px;width:2px}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-body{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--c-text-2)}

/* ============ risk bar ============ */
.risk-bar{background:var(--c-primary-deep);color:#fff}
.risk-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:32px 0}
.risk-inner .risk-text{display:flex;gap:14px;align-items:flex-start;max-width:760px}
.risk-text svg{width:22px;height:22px;flex:0 0 auto;margin-top:5px;color:var(--c-accent)}
.risk-inner p{font-size:15px;line-height:1.75;color:rgba(255,255,255,.88);margin:0}
.risk-inner strong{color:#fff}

/* ============ cta ============ */
.cta-section{background:var(--c-primary-deep);color:#fff;padding:80px 0}
.cta-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:start}
.cta-copy h2{font-size:30px;line-height:1.3;color:#fff;margin-bottom:16px;padding-left:14px;position:relative}
.cta-copy h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--c-accent)}
.cta-copy p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);max-width:520px}
.cta-points{display:grid;gap:10px;margin-top:28px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.85);line-height:1.7}
.cta-points svg{width:16px;height:16px;flex:0 0 auto;margin-top:5px;color:var(--c-accent)}
.lead-form{background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:0 20px 48px -24px rgba(5,20,50,.6)}
.lead-form .form-title{font-size:20px;color:var(--c-text);margin-bottom:6px}
.lead-form .form-sub{font-size:14px;color:var(--c-text-2);margin-bottom:20px;line-height:1.7}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:500;color:var(--c-text-2);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;color:var(--c-text);
  padding:0 14px;height:46px;font-size:15px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(31,85,184,.22)}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--c-danger)}
.field .err{display:none;font-size:13px;color:var(--c-danger);margin-top:6px}
.field.has-error .err{display:block}
.check-line{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--c-text-2);line-height:1.7;margin:4px 0 18px}
.check-line input{width:16px;height:16px;margin-top:4px;accent-color:var(--c-primary);flex:0 0 auto}
.form-note{font-size:13px;color:var(--c-text-3);margin-top:12px;line-height:1.7}
.toast{
  position:fixed;top:18px;left:50%;transform:translate(-50%,-16px);
  background:#fff;border-radius:10px;border-left:3px solid var(--c-verify);
  box-shadow:0 16px 40px -18px rgba(18,58,128,.4);
  padding:14px 20px;font-size:14px;color:var(--c-text);z-index:220;
  opacity:0;visibility:hidden;transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
  max-width:min(90vw,420px);
}
.toast.is-show{opacity:1;visibility:visible;transform:translate(-50%,0)}

/* ============ footer ============ */
.site-footer{background:var(--c-primary-deep);color:rgba(255,255,255,.88);padding:64px 0 24px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.16)}
.footer-brand .logo{color:#fff;font-size:17px;margin-bottom:14px}
.footer-brand .logo-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);max-width:320px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-badges span{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);color:rgba(255,255,255,.9);font-size:12px;
}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.78);font-size:14px}
.footer-col a:hover{color:#fff}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);margin-bottom:10px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:22px;font-size:13px;color:rgba(255,255,255,.62);
}

/* ============ mobile tabbar ============ */
.mobile-tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:120;
  background:#fff;border-top:1px solid var(--c-line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar .tab-inner{display:grid;grid-template-columns:repeat(3,1fr)}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  min-height:60px;padding:8px 4px;color:var(--c-text-3);font-size:11px;font-weight:500;
}
.tab-item svg{width:22px;height:22px}
.tab-item.is-active{color:var(--c-primary)}
.tab-item.is-active::before{content:"";position:absolute;top:0;left:22%;right:22%;height:2px;border-radius:2px;background:var(--c-primary)}

/* ============ reveal ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .2s var(--ease),transform .2s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ responsive ============ */
@media (max-width:1199px){
  .panel-grid{grid-template-columns:1fr 1fr}
  .panel-grid .panel-lg{grid-column:1 / -1}
}
@media (max-width:991px){
  body{padding-bottom:76px}
  .main-nav{display:none}
  .menu-toggle{display:inline-flex}
  .header-actions .btn-sm{display:none}
  .mobile-tabbar{display:block}
  .section{padding:72px 0}
  .cta-section{padding:64px 0}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .figure-block{grid-template-columns:1fr}
  .risk-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  .page-head h1{font-size:30px}
  .section-title{font-size:26px}
  .cta-copy h2{font-size:26px}
  .checklist{grid-template-columns:1fr;padding:8px 22px}
  .checklist li:nth-last-child(-n+2){border-bottom:1px solid var(--c-line)}
  .checklist li:last-child{border-bottom:none}
  .panel-grid{grid-template-columns:1fr}
  .lead-form{padding:22px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .site-header .container{padding:0 16px}
  .section{padding:56px 0}
  .page-head{padding:24px 0 36px}
  .page-head h1{font-size:28px}
  .section-title{font-size:24px}
  .panel{padding:18px}
  .faq-item summary{padding:14px 18px;font-size:15px}
  .faq-body{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .btn{height:44px;padding:0 20px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}