/* roulang page: index */
:root{
  --c-primary:#1D5A96;
  --c-primary-dark:#154672;
  --c-primary-soft:#EAF1F8;
  --c-amber:#C9863C;
  --c-amber-soft:#FBF3E9;
  --ink:#10161E;
  --text-2:#4A5568;
  --text-3:#8A94A6;
  --line:#E3E8EF;
  --bg:#FFFFFF;
  --soft:#F5F7FA;
  --r-btn:8px;
  --r-card:14px;
  --r-img:10px;
  --sh-1:0 1px 2px rgba(16,22,30,.04), 0 12px 32px -12px rgba(16,22,30,.10);
  --sh-2:0 16px 40px -14px rgba(16,22,30,.16);
  --sh-3:0 20px 48px -16px rgba(16,22,30,.20);
  --sp-section:104px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",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(--ink);
  background:var(--bg);
  padding-bottom:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--ink);letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-amber);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1440px){.container{max-width:1320px;}}
.section{padding:64px 0;}
@media (min-width:640px){.section{padding:80px 0;}}
@media (min-width:1024px){.section{padding:var(--sp-section) 0;}}
.section--soft{background:var(--soft);}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);}
.section-head .sub{margin-top:12px;color:var(--text-2);font-size:16px;max-width:640px;}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--c-amber);
  text-transform:uppercase;font-weight:600;margin-bottom:14px;
}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ============ 导航 ============ */
.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 6px 20px -14px rgba(16,22,30,.28);}
.nav-inner{
  height:56px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
@media (min-width:1024px){.nav-inner{height:64px;}}
.brand{
  display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;
  color:var(--ink);letter-spacing:-.02em;white-space:nowrap;
}
.brand:hover{color:var(--c-primary);}
.brand .mark{
  width:26px;height:26px;border-radius:8px;flex:none;
  background:var(--c-primary);position:relative;
}
.brand .mark::after{
  content:"";position:absolute;inset:8px;border-radius:2px;background:#fff;opacity:.9;
}
.nav-links{display:none;}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:34px;}
}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--ink);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-cta{
  display:none;
  align-items:center;gap:8px;height:38px;padding:0 18px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
@media (min-width:640px){.nav-cta{display:inline-flex;}}
.nav-cta:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.nav-toggle{
  width:44px;height:44px;border:0;background:transparent;display:inline-flex;
  align-items:center;justify-content:center;cursor:pointer;padding:0;
}
@media (min-width:1024px){.nav-toggle{display:none;}}
.nav-toggle span{
  display:block;width:20px;height:1.5px;background:var(--ink);position:relative;
  transition:background .2s ease;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:1.5px;background:var(--ink);
  transition:transform .22s ease,top .22s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg);}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg);}
.mobile-nav{
  display:none;border-top:1px solid var(--line);background:#fff;
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border-bottom:1px solid var(--line);color:var(--ink);font-size:16px;
}
.mobile-nav a:last-child{border-bottom:0;}
.mobile-nav a.is-active{color:var(--c-primary);font-weight:600;}
.mobile-nav a::after{content:"›";color:var(--text-3);}
@media (min-width:1024px){.mobile-nav{display:none !important;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.link-cta{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-primary);
}
.link-cta .arw{transition:transform .22s ease,color .22s ease;color:var(--c-amber);}
.link-cta:hover{color:var(--c-primary-dark);}
.link-cta:hover .arw{transform:translateX(4px);}

/* ============ Hero ============ */
.hero{
  padding:56px 0 40px;
  background:#fff;
  border-bottom:1px solid var(--line);
}
@media (min-width:1024px){.hero{padding:88px 0 72px;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:44px;align-items:center;}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:7fr 5fr;gap:56px;}
}
.hero h1{
  font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1.22;letter-spacing:-.02em;
}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero .lede{
  margin-top:20px;font-size:18px;line-height:1.7;color:var(--text-2);max-width:560px;
}
@media (min-width:1024px){.hero .lede{font-size:19px;}}
.hero-actions{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-metrics{
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:0;
}
.hero-metrics .m{
  flex:1 1 33.33%;min-width:104px;padding:0 16px;border-left:1px solid var(--line);
}
.hero-metrics .m:first-child{border-left:0;padding-left:0;}
.hero-metrics .num{font-size:24px;font-weight:700;color:var(--c-primary);line-height:1.2;}
.hero-metrics .lbl{font-size:13px;color:var(--text-3);margin-top:6px;}
.hero-visual{position:relative;}
.hero-visual .frame{
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line);
  background:var(--soft);aspect-ratio:16/10;
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;left:-12px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-3);padding:16px 20px;max-width:250px;
}
@media (min-width:640px){.hero-float{left:-28px;bottom:-28px;}}
.hero-float .t{font-size:14px;font-weight:600;color:var(--ink);}
.hero-float .d{font-size:13px;color:var(--text-3);margin-top:6px;line-height:1.6;}

/* ============ 卖点错位 ============ */
.feature-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:1024px){
  .feature-grid{grid-template-columns:repeat(12,1fr);gap:32px;}
  .feature-main{grid-column:span 6;}
  .feature-side{grid-column:span 3;}
}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(29,90,150,.2);}
.feature-main{flex-direction:column;}
@media (min-width:640px){
  .feature-main{flex-direction:row;gap:28px;align-items:center;padding:28px;}
}
.feature-main .thumb{
  border-radius:var(--r-img);overflow:hidden;flex:0 0 auto;aspect-ratio:16/10;width:100%;
  background:var(--soft);
}
@media (min-width:640px){.feature-main .thumb{width:46%;}}
.feature-main .thumb img{width:100%;height:100%;object-fit:cover;}
.feature-body{flex:1 1 auto;margin-top:20px;}
@media (min-width:640px){.feature-body{margin-top:0;}}
.fnum{
  font-size:32px;font-weight:700;color:var(--c-amber);line-height:1;
  padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:16px;display:block;
}
.feature-card h3{font-size:19px;margin-bottom:10px;}
.feature-card p{font-size:15px;color:var(--text-2);line-height:1.8;}
.feature-card .link-cta{margin-top:18px;font-size:14px;}

/* ============ 场景流程 ============ */
.flow-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media (min-width:1024px){.flow-grid{grid-template-columns:6fr 6fr;gap:56px;}}
.flow-figure{
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line);
}
.flow-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.flow-steps{position:relative;padding-left:28px;}
.flow-steps::before{
  content:"";position:absolute;left:7px;top:12px;bottom:12px;width:1px;background:var(--line);
}
.flow-step{position:relative;padding:0 0 30px;}
.flow-step:last-child{padding-bottom:0;}
.flow-step::before{
  content:"";position:absolute;left:-28px;top:6px;width:15px;height:15px;border-radius:50%;
  background:#fff;border:2px solid var(--line);
}
.flow-step.is-current::before{background:var(--c-primary);border-color:var(--c-primary);}
.flow-step h3{font-size:18px;margin-bottom:8px;}
.flow-step p{font-size:15px;color:var(--text-2);}
.flow-step .tag{
  display:inline-block;font-size:12px;color:var(--c-amber);background:var(--c-amber-soft);
  border-radius:999px;padding:3px 10px;margin-bottom:10px;
}

/* ============ 社会认同 ============ */
.stat-bar{
  display:grid;grid-template-columns:repeat(2,1fr);gap:0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-bottom:48px;
}
@media (min-width:768px){.stat-bar{grid-template-columns:repeat(4,1fr);}}
.stat{padding:26px 18px;border-left:1px solid var(--line);}
.stat:first-child{border-left:0;}
@media (max-width:767px){
  .stat:nth-child(3){border-left:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);}
}
.stat .num{font-size:28px;font-weight:700;color:var(--c-primary);line-height:1.15;}
.stat .lbl{font-size:13px;color:var(--text-3);margin-top:8px;}
.quote-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:768px){.quote-grid{grid-template-columns:repeat(3,1fr);}}
.quote-card{
  background:var(--soft);border-radius:var(--r-card);padding:28px 24px;position:relative;
  border:1px solid transparent;transition:border-color .24s ease,background .24s ease;
}
.quote-card:hover{border-color:var(--line);background:#fff;box-shadow:var(--sh-1);}
.quote-card .qmark{
  font-size:56px;line-height:1;color:var(--c-primary);opacity:.12;font-weight:700;
  display:block;margin-bottom:-14px;
}
.quote-card p{font-size:15px;color:var(--text-2);line-height:1.85;position:relative;}
.quote-card .who{margin-top:18px;font-size:13px;color:var(--text-3);}
.trust-wall{
  margin-top:44px;display:flex;flex-wrap:wrap;gap:14px 40px;align-items:center;
  padding-top:28px;border-top:1px solid var(--line);
}
.trust-wall span{
  font-size:14px;color:var(--text-3);opacity:.5;transition:opacity .22s ease,color .22s ease;
  letter-spacing:.04em;
}
.trust-wall span:hover{opacity:1;color:var(--c-primary);}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);color:var(--ink);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(29,90,150,.2);color:var(--ink);}
.news-thumb{
  aspect-ratio:16/10;background:#EDF1F6;overflow:hidden;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.badge{
  display:inline-block;align-self:flex-start;font-size:12px;font-weight:600;
  color:var(--c-primary);background:var(--c-primary-soft);border-radius:999px;
  padding:3px 11px;margin-bottom:12px;
}
.news-body h3{
  font-size:17px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body .excerpt{
  font-size:14px;color:var(--text-2);line-height:1.75;flex:1 1 auto;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:12px;color:var(--text-3);display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);display:inline-block;}
.empty-state{
  border:1px dashed #D8DEE8;border-radius:var(--r-card);padding:48px 24px;text-align:center;
  background:#fff;
}
.empty-state .ico{
  width:40px;height:40px;margin:0 auto 16px;border-radius:10px;
  background:var(--c-primary-soft);position:relative;
}
.empty-state .ico::after{
  content:"";position:absolute;left:12px;right:12px;top:14px;height:2px;background:rgba(29,90,150,.3);
  box-shadow:0 6px 0 rgba(29,90,150,.3),0 12px 0 rgba(29,90,150,.3);
}
.empty-state p{font-size:15px;color:var(--text-3);margin-bottom:14px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 40px 20px 0;position:relative;
  font-size:17px;font-weight:500;color:var(--ink);transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item summary::after{
  content:"";position:absolute;right:6px;top:29px;width:12px;height:12px;
  border-right:1.5px solid var(--c-primary);border-bottom:1.5px solid var(--c-primary);
  transform:rotate(45deg);transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-item[open] summary{color:var(--c-primary);}
.faq-item[open] summary::before{
  content:"";position:absolute;left:-16px;top:22px;bottom:22px;width:3px;background:var(--c-primary);
  border-radius:2px;
}
.faq-item .answer{
  font-size:15.5px;color:var(--text-2);line-height:1.85;padding:0 40px 22px 0;
}
@media (max-width:640px){
  .faq-item summary{padding-right:32px;}
  .faq-item[open] summary::before{left:-10px;}
}

/* ============ CTA + 表单 ============ */
.cta-box{
  background:var(--soft);border-radius:var(--r-card);padding:36px 24px;
  display:grid;grid-template-columns:1fr;gap:36px;
}
@media (min-width:640px){.cta-box{padding:44px 36px;}}
@media (min-width:1024px){.cta-box{grid-template-columns:1fr 1fr;gap:64px;padding:56px 48px;align-items:center;}}
.cta-box h2{font-size:clamp(22px,2.6vw,30px);}
.cta-box .desc{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.8;}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;gap:12px;font-size:15px;color:var(--text-2);}
.cta-points li::before{
  content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--c-amber);margin-top:10px;
}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:12px;color:var(--text-3);margin-bottom:8px;letter-spacing:.02em;}
.field input,.field textarea{
  width:100%;height:44px;border:1px solid #D8DEE8;border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;color:var(--ink);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:88px;padding:12px 14px;line-height:1.6;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);font-size:14px;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,90,150,.12);
}
.form-card .btn{width:100%;}
.form-tip{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--soft);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;}}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;max-width:320px;}
.footer-brand .contact{margin-top:18px;font-size:14px;color:var(--text-2);line-height:2;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--ink);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{font-size:13px;color:var(--text-3);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ============ 底部转化条 ============ */
.float-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.94);border-top:1px solid var(--line);
  padding:8px 16px calc(8px + env(safe-area-inset-bottom));
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  transform:translateY(110%);transition:transform .3s ease;
}
.float-bar.is-on{transform:translateY(0);}
.float-bar .fb-text{font-size:13px;color:var(--text-2);line-height:1.4;}
.float-bar .fb-text strong{color:var(--ink);display:block;font-size:14px;}
.float-bar .btn{height:40px;padding:0 18px;font-size:14px;white-space:nowrap;}
body{padding-bottom:64px;}
@media (min-width:1024px){
  body{padding-bottom:0;}
  .float-bar{padding:0 24px;height:52px;}
  .float-bar .inner{max-width:1200px;margin:0 auto;width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;}
  .float-bar .fb-text{display:flex;align-items:center;gap:10px;}
  .float-bar .fb-text strong{display:inline;}
  .float-bar .btn{height:36px;}
}
@media (max-width:1023px){
  .float-bar .inner{display:flex;align-items:center;justify-content:space-between;width:100%;gap:14px;}
}

/* roulang page: article */
:root{
  --brand:#1D5A96;
  --brand-dark:#154672;
  --brand-soft:#EAF1F8;
  --amber:#C9863C;
  --amber-soft:#FBF3E9;
  --ink:#10161E;
  --text:#4A5568;
  --muted:#8A94A6;
  --line:#E3E8EF;
  --line-soft:#EDF1F6;
  --bg:#FFFFFF;
  --soft:#F5F7FA;
  --radius-card:14px;
  --radius-img:10px;
  --radius-btn:8px;
  --shadow-1:0 1px 2px rgba(16,22,30,.04), 0 12px 32px -12px rgba(16,22,30,.10);
  --shadow-2:0 16px 40px -14px rgba(16,22,30,.16);
  --shadow-3:0 20px 48px -16px rgba(16,22,30,.20);
  --container:1200px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-img)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;line-height:1.35;letter-spacing:-0.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,textarea,select{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:1440px){.container{max-width:1320px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(29,90,150,.18)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px -12px rgba(29,90,150,.45)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover{color:var(--amber)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 头部导航 ---------- */
.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 6px 24px -18px rgba(16,22,30,.35)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:18px;font-weight:700;letter-spacing:-0.01em}
.brand:hover{color:var(--brand)}
.brand .mark{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand) 0%,#2C7BBE 70%,var(--amber) 160%);
  box-shadow:0 6px 14px -8px rgba(29,90,150,.7);
}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{
  position:relative;color:var(--text);font-size:15px;font-weight:500;padding:6px 0;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--ink);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;
  cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);transition:transform .22s ease,opacity .22s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-nav.is-open{display:block}
.mobile-nav a{display:block;padding:16px 20px;border-bottom:1px solid var(--line);color:var(--ink);font-size:16px}
.mobile-nav a.is-active{color:var(--brand);font-weight:600}
.mobile-nav .mobile-cta{padding:18px 20px}

@media (max-width:920px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn{display:none}
  .header-inner{height:56px}
}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line-soft);background:#fff}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:14px 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C3CBD6}
.crumb .current{color:var(--ink);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-hero{background:#fff;padding:48px 0 32px}
.article-head{max-width:860px;margin:0 auto}
.pill{
  display:inline-block;padding:5px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.04em;
}
.article-head h1{
  margin:18px 0 0;
  font-size:clamp(26px,3.4vw,38px);
  font-weight:700;line-height:1.32;color:var(--ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:20px;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:#B6C0CD;font-size:12px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#D5DCE5}

/* ---------- 正文 ---------- */
.article-section{padding:16px 0 64px}
.article-layout{max-width:860px;margin:0 auto}
.article-body{
  max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--text);
}
.article-body>*+*{margin-top:1.25em}
.article-body p{margin:0}
.article-body h2{
  position:relative;margin-top:2.2em;padding-left:14px;
  font-size:clamp(20px,2.2vw,26px);font-weight:600;color:var(--ink);line-height:1.45;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.24em;width:3px;border-radius:2px;background:var(--brand);
}
.article-body h3{
  margin-top:1.8em;font-size:19px;font-weight:600;color:var(--ink);
}
.article-body h4{margin-top:1.6em;font-size:17px;font-weight:600;color:var(--ink)}
.article-body ul,.article-body ol{padding-left:0;margin:0}
.article-body ul li{position:relative;padding-left:22px}
.article-body ul li+li{margin-top:10px}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.article-body ol{counter-reset:artlist}
.article-body ol li{position:relative;padding-left:38px;counter-increment:artlist}
.article-body ol li+li{margin-top:10px}
.article-body ol li::before{
  content:counter(artlist,decimal-leading-zero);
  position:absolute;left:0;top:.12em;font-size:13px;font-weight:700;color:var(--amber);letter-spacing:.04em;
}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;background:#F7F9FC;border-left:3px solid var(--amber);
  border-radius:0 var(--radius-img) var(--radius-img) 0;color:#33404F;
}
.article-body blockquote p{margin:0}
.article-body img{border-radius:var(--radius-img);margin:1.6em auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(29,90,150,.35)}
.article-body a:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark)}
.article-body strong{color:var(--ink);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;
  border:1px solid var(--line);border-radius:var(--radius-img);overflow:hidden;
}
.article-body thead{background:var(--soft)}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.article-body th{color:var(--ink);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFBFD}
.article-body code{
  background:var(--brand-soft);color:var(--brand-dark);padding:2px 6px;border-radius:6px;font-size:.92em;
}
.article-body pre{
  background:#0F1C2A;color:#DCE6F2;padding:18px 20px;border-radius:var(--radius-img);
  overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:transparent;color:inherit;padding:0}

.empty-state{
  border:1px dashed #D8DEE8;border-radius:var(--radius-card);padding:48px 24px;text-align:center;background:#fff;
}
.empty-state i{font-size:28px;color:rgba(29,90,150,.35)}
.empty-state p{margin:14px 0 18px;font-size:15px;color:var(--muted)}

/* ---------- 文末 ---------- */
.article-foot{max-width:760px;margin:48px auto 0;padding-top:28px;border-top:1px solid var(--line)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-block;padding:6px 14px;border-radius:999px;
  background:var(--soft);color:var(--text);font-size:13px;border:1px solid var(--line);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.tag:hover{background:var(--brand-soft);color:var(--brand);border-color:rgba(29,90,150,.25)}
.foot-nav{margin-top:26px;border-top:1px solid var(--line-soft)}
.foot-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 0;border-bottom:1px solid var(--line-soft);color:var(--text);font-size:15px;
}
.foot-nav a span.label{color:var(--muted);font-size:13px;flex:0 0 auto}
.foot-nav a span.txt{flex:1 1 auto;text-align:right;color:var(--ink);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.foot-nav a:hover{color:var(--brand)}
.foot-nav a:hover span.txt{color:var(--brand)}
.foot-nav a i{transition:transform .2s ease;color:var(--brand)}
.foot-nav a:hover i{transform:translateX(4px)}
.back-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}

/* ---------- 相关推荐 ---------- */
.related{background:var(--soft);padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-head p{margin-top:8px;font-size:15px;color:var(--muted)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(29,90,150,.28)}
.card-thumb{position:relative;overflow:hidden;background:#EDF1F6;aspect-ratio:16/10}
.card-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .24s ease}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card-body h3{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:15px;color:var(--text);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  font-size:12px;color:var(--muted);padding-top:6px;
}
.card-foot .dot{width:3px;height:3px;border-radius:50%;background:#CBD3DE}
.related-empty{
  border:1px dashed #D8DEE8;border-radius:var(--radius-card);background:#fff;
  padding:48px 24px;text-align:center;color:var(--muted);font-size:15px;
}

/* ---------- CTA ---------- */
.cta{padding:80px 0}
.cta-panel{
  display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:start;
  background:var(--soft);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:40px;box-shadow:var(--shadow-1);
}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px)}
.cta-copy p{margin-top:14px;font-size:16px;color:var(--text);line-height:1.8}
.cta-points{margin-top:24px;display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text)}
.cta-points i{color:var(--amber);margin-top:4px}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:12px;color:var(--muted);letter-spacing:.04em;margin-bottom:8px}
.form-row input,.form-row textarea{
  width:100%;min-height:44px;padding:11px 14px;border:1px solid #D8DEE8;border-radius:var(--radius-btn);
  background:#fff;color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row textarea{min-height:110px;resize:vertical;line-height:1.7}
.form-row input::placeholder,.form-row textarea::placeholder{color:var(--muted);font-size:14px}
.form-row input:focus,.form-row textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,90,150,.12);
}
.form-note{font-size:13px;color:var(--muted);margin-top:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--soft);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:15px;color:var(--text);line-height:1.8;max-width:34ch}
.footer-brand .contact{margin-top:16px;font-size:13px;color:var(--muted);line-height:1.9}
.footer-col h4{font-size:15px;color:var(--ink);margin-bottom:16px;font-weight:600}
.footer-col ul li+li{margin-top:10px}
.footer-col a{font-size:14px;color:var(--text);transition:color .2s ease}
.footer-col a:hover{color:var(--brand);text-decoration:underline}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 底部转化条 ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:rgba(255,255,255,.96);border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -18px rgba(16,22,30,.35);
  padding-bottom:env(safe-area-inset-bottom);
}
.sticky-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 0;min-height:56px}
.sticky-cta-inner span{font-size:14px;color:var(--text);line-height:1.5}
@media (min-width:921px){
  .sticky-cta{opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .3s ease,transform .3s ease,visibility .3s ease}
  .sticky-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
  .sticky-cta-inner{min-height:52px}
}
@media (max-width:920px){
  body{padding-bottom:72px}
  .sticky-cta-inner span{font-size:13px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
}
@media (min-width:921px){
  .sticky-cta .container{padding-left:20px;padding-right:20px}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .cta-panel{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:768px){
  .article-hero{padding:32px 0 24px}
  .article-section{padding:8px 0 48px}
  .article-body{font-size:16px;line-height:1.85}
  .related{padding:56px 0}
  .cta{padding:56px 0}
  .site-footer{padding:48px 0 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-panel{padding:24px}
  .article-meta{gap:10px;font-size:12.5px}
  .back-links{flex-direction:column;align-items:stretch}
  .back-links .btn{width:100%}
  .article-head h1{font-size:24px}
}

/* roulang page: category1 */
:root{
  --brand:#1D5A96;
  --brand-dark:#154672;
  --brand-soft:#EAF1F8;
  --amber:#C9863C;
  --amber-soft:#FBF3E9;
  --ink:#10161E;
  --text:#4A5568;
  --muted:#8A94A6;
  --line:#E3E8EF;
  --line-strong:#D8DEE8;
  --bg:#FFFFFF;
  --soft:#F5F7FA;
  --footer-bg:#F5F7FA;
  --r-btn:8px;
  --r-card:14px;
  --r-img:10px;
  --pill:999px;
  --sh-1:0 1px 2px rgba(16,22,30,.04),0 12px 32px -12px rgba(16,22,30,.10);
  --sh-2:0 16px 40px -14px rgba(16,22,30,.16);
  --sh-3:0 20px 48px -16px rgba(16,22,30,.20);
  --container:1200px;
  --sec-y:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;letter-spacing:-0.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--brand-dark)}
img{max-width:100%;display:block;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1440px){:root{--container:1320px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(16,22,30,.05),0 10px 24px -18px rgba(16,22,30,.24)}
.header-inner{display:flex;align-items:center;gap:32px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:17px;font-weight:600;letter-spacing:-0.01em;white-space:nowrap}
.brand:hover{color:var(--brand)}
.brand .mark{
  width:22px;height:22px;border-radius:7px;flex:0 0 22px;
  background:var(--brand);position:relative;
}
.brand .mark::after{
  content:"";position:absolute;inset:6px;border-radius:3px;background:#fff;opacity:.9;
}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{
  position:relative;color:var(--text);font-size:15px;padding:6px 0;border-bottom:2px solid transparent;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-19px;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--ink);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.icon-link{
  width:40px;height:40px;border:1px solid var(--line);border-radius:var(--pill);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text);
}
.icon-link:hover{border-color:var(--brand);color:var(--brand)}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;padding:0;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:1.5px;background:var(--ink);transition:transform .24s ease,opacity .24s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
.mobile-nav{display:none;background:#fff;border-top:1px solid var(--line)}
.mobile-nav a{display:block;padding:16px 24px;border-bottom:1px solid var(--line);color:var(--text);font-size:16px}
.mobile-nav a.is-active{color:var(--brand);font-weight:600;box-shadow:inset 3px 0 0 var(--brand)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(16,22,30,.06)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-btn)}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand)}
.link-arrow i{transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(4px);color:var(--amber)}

/* ============ 面包屑 ============ */
.crumb{font-size:13px;color:var(--muted);padding:20px 0 0;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line-strong)}
.crumb .current{color:var(--text)}

/* ============ 分类首屏 ============ */
.cat-hero{padding:24px 0 48px;border-bottom:1px solid var(--line)}
.cat-hero-inner{max-width:860px}
.cat-hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);border-radius:var(--pill);padding:6px 14px;
}
.cat-hero h1{font-size:clamp(30px,4vw,46px);font-weight:700;margin:18px 0 16px}
.cat-hero .lead{font-size:18px;line-height:1.8;color:var(--text);max-width:720px}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;margin-top:36px}
.hero-stats .stat{padding:0 32px;border-left:1px solid var(--line)}
.hero-stats .stat:first-child{padding-left:0;border-left:0}
.hero-stats .num{display:block;font-size:24px;font-weight:700;color:var(--brand);line-height:1.3}
.hero-stats .label{font-size:13px;color:var(--muted)}

/* ============ 双栏主体 ============ */
.cat-layout{
  display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;
  padding:var(--sec-y) 24px;align-items:start;
}
.cat-side{position:sticky;top:88px}
.cat-side .side-title{font-size:12px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:8px}
.cat-side ol li a{
  display:block;padding:11px 14px;font-size:15px;color:var(--text);
  border-left:2px solid transparent;transition:all .2s ease;
}
.cat-side ol li a:hover{color:var(--brand);background:var(--soft)}
.cat-side ol li a.is-current{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:var(--brand-soft)}
.cat-side .side-help{margin-top:24px;padding:18px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--soft)}
.cat-side .side-help p{font-size:13.5px;color:var(--text);margin-bottom:12px}

.doc-section{padding:40px 0;border-bottom:1px solid var(--line)}
.doc-section:first-child{padding-top:0}
.doc-section:last-child{border-bottom:0;padding-bottom:0}
.doc-head{display:flex;align-items:baseline;gap:14px;margin-bottom:20px}
.doc-head .idx{font-size:26px;font-weight:700;color:var(--amber);line-height:1;letter-spacing:-0.02em}
.doc-head h2{font-size:clamp(22px,2.4vw,30px)}
.doc-section p{font-size:16.5px;line-height:1.85;color:var(--text);margin-bottom:16px}
.doc-section p:last-child{margin-bottom:0}
.doc-section strong{color:var(--ink)}

.figure{margin:26px 0 0}
.figure .frame{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/9;background:var(--soft);
}
.figure .frame img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.figure .frame:hover img{transform:scale(1.03)}
.figure figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:12px}

/* 要点编号列表 */
.point-list{margin-top:8px}
.point-list li{
  display:flex;gap:20px;padding:22px 0;border-top:1px solid var(--line);
}
.point-list li:first-child{border-top:0;padding-top:4px}
.point-list .num{font-size:22px;font-weight:700;color:var(--amber);line-height:1.2;min-width:38px;letter-spacing:-0.02em}
.point-list h3{font-size:19px;margin-bottom:8px}
.point-list p{font-size:15.5px;color:var(--text);margin:0}

/* 适用场景 */
.scene-list{display:grid;gap:18px;margin-top:8px}
.scene-item{border-left:3px solid var(--amber);padding:2px 0 2px 20px}
.scene-item h3{font-size:18px;margin-bottom:6px}
.scene-item p{font-size:15.5px;margin:0}

/* 流程步骤 */
.steps{margin-top:10px;position:relative}
.steps li{position:relative;padding:0 0 28px 40px}
.steps li::before{
  content:"";position:absolute;left:9px;top:22px;bottom:0;width:1px;background:var(--line);
}
.steps li:last-child{padding-bottom:0}
.steps li:last-child::before{display:none}
.steps .dot{
  position:absolute;left:0;top:4px;width:19px;height:19px;border-radius:50%;
  border:1px solid var(--line-strong);background:#fff;
}
.steps li:first-child .dot{background:var(--brand);border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
.steps h3{font-size:18px;margin-bottom:6px}
.steps p{font-size:15.5px;margin:0}

/* 保障清单 */
.check-list{display:grid;gap:12px;margin-top:6px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px}
.check-list i{color:var(--brand);margin-top:5px}

/* FAQ */
.faq-list{margin-top:6px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;font-size:17px;font-weight:500;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{color:var(--brand);font-size:15px;flex:0 0 auto;transition:transform .22s ease}
.faq-item[open] summary{box-shadow:inset 3px 0 0 var(--brand);padding-left:14px}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item .answer{padding:0 0 18px;font-size:15.5px;line-height:1.85;color:var(--text)}
.faq-item[open] .answer{padding-left:14px}

/* 表单 */
.form-card{
  background:var(--soft);border-radius:var(--r-card);padding:32px;border:1px solid var(--line);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:12px;color:var(--muted);letter-spacing:.04em}
.field input,.field textarea,.field select{
  height:44px;padding:0 14px;border:1px solid var(--line-strong);border-radius:var(--r-btn);
  background:#fff;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);font-size:14px}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,90,150,.12);
}
.form-note{font-size:13px;color:var(--muted);margin-top:14px}
.form-tip{font-size:14px;color:var(--amber);margin-top:12px;display:none}
.form-tip.is-show{display:block}

/* 底部转化 */
.cat-cta{
  background-image:linear-gradient(rgba(255,255,255,.93),rgba(245,247,250,.97)),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cat-cta .inner{display:grid;grid-template-columns:1.3fr 1fr;gap:48px;align-items:center;padding:72px 0}
.cat-cta h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cat-cta p{font-size:16px;color:var(--text)}
.cat-cta .actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cat-cta .mini{display:flex;gap:36px;margin-top:24px}
.cat-cta .mini div span{display:block;font-size:22px;font-weight:700;color:var(--brand)}
.cat-cta .mini div small{font-size:13px;color:var(--muted)}

/* 内链区 */
.cat-links{padding:56px 0 72px}
.cat-links .row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.cat-links a.card-link{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:24px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;
  box-shadow:var(--sh-1);transition:all .24s ease;
}
.cat-links a.card-link:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(29,90,150,.2)}
.cat-links .cl-t{font-size:17px;font-weight:600;color:var(--ink);display:block}
.cat-links .cl-d{font-size:14px;color:var(--muted);margin-top:4px;display:block}
.cat-links i{color:var(--brand);transition:transform .22s ease}
.cat-links a.card-link:hover i{transform:translateX(4px);color:var(--amber)}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer-bg);border-top:1px solid var(--line);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px;font-size:17px;font-weight:600}
.footer-brand p{font-size:14.5px;color:var(--text);max-width:340px;line-height:1.8}
.footer-brand .contact{font-size:13.5px;color:var(--muted);margin-top:16px;line-height:1.9}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--ink)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14.5px;color:var(--text)}
.footer-col ul a:hover{color:var(--brand);text-decoration:underline}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--brand)}

/* ============ 底部转化条 ============ */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;background:rgba(255,255,255,.94);
  border-top:1px solid var(--line);box-shadow:0 -8px 24px -18px rgba(16,22,30,.3);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  transform:translateY(110%);transition:transform .3s ease;
}
.mobile-bar.is-show{transform:translateY(0)}
.mobile-bar span{font-size:13.5px;color:var(--text)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .cat-layout{gap:40px}
}
@media (max-width:1023px){
  :root{--sec-y:80px}
  .cat-layout{grid-template-columns:1fr;gap:32px}
  .cat-side{position:static;top:auto;border-bottom:1px solid var(--line);padding-bottom:8px}
  .cat-side .side-title{margin-bottom:4px}
  .cat-side ol{display:flex;flex-wrap:wrap;gap:4px}
  .cat-side ol li a{padding:8px 12px;border-left:0;border-bottom:2px solid transparent}
  .cat-side ol li a.is-current{border-left:0;border-bottom-color:var(--brand);background:transparent}
  .cat-side .side-help{display:none}
  .cat-cta .inner{grid-template-columns:1fr;gap:28px;padding:56px 0}
  .cat-cta .actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-links,.header-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .mobile-nav{display:block}
  .mobile-nav[hidden]{display:none}
}
@media (max-width:767px){
  :root{--sec-y:56px}
  body{padding-bottom:60px}
  .container{padding:0 18px}
  .cat-layout{padding:56px 18px}
  .cat-hero{padding:16px 0 36px}
  .cat-hero .lead{font-size:16.5px}
  .hero-stats{margin-top:28px}
  .hero-stats .stat{padding:0 20px 12px 0}
  .hero-stats .stat:nth-child(2){padding-left:20px;border-left:1px solid var(--line)}
  .hero-stats .num{font-size:21px}
  .point-list li{flex-direction:column;gap:8px}
  .form-card{padding:22px}
  .form-grid{grid-template-columns:1fr}
  .cat-links .row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .mobile-bar{transform:translateY(0)}
  .mobile-bar.is-hide{transform:translateY(110%)}
}
@media (max-width:520px){
  .cat-hero h1{font-size:28px}
  .hero-stats .stat{width:50%;padding-right:12px}
  .doc-head .idx{font-size:22px}
  .cat-cta .mini{gap:24px}
  .mobile-bar span{max-width:52%}
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root{
  --primary:#1D5A96;
  --primary-dark:#154672;
  --primary-soft:#EAF1F8;
  --amber:#C9863C;
  --amber-soft:#FBF3E9;
  --ink:#10161E;
  --muted:#4A5568;
  --weak:#8A94A6;
  --line:#E3E8EF;
  --line-strong:#D8DEE8;
  --bg:#FFFFFF;
  --soft:#F5F7FA;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(16,22,30,.04), 0 12px 32px -12px rgba(16,22,30,.10);
  --shadow-hover:0 16px 40px -14px rgba(16,22,30,.16);
  --shadow-float:0 20px 48px -16px rgba(16,22,30,.20);
  --sect-sm:56px;
  --sect-md:80px;
  --sect-lg:104px;
  --ease:240ms cubic-bezier(.4,0,.2,1);
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:10px;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--ink);letter-spacing:-.01em;line-height:1.3;}
h1{font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1.22;}
h2{font-size:clamp(24px,2.6vw,32px);}
h3{font-size:19px;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
::selection{background:var(--primary-soft);color:var(--primary-dark);}

/* ===== 容器 ===== */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1440px){
  .container{max-width:1320px;}
}

/* ===== 通用文本 ===== */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--amber);
  font-weight:600;
  text-transform:none;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;background:var(--amber);display:inline-block;
}
.lead{
  font-size:17px;
  color:var(--muted);
  line-height:1.85;
  max-width:760px;
}
.section{padding:var(--sect-sm) 0;}
@media (min-width:640px){.section{padding:var(--sect-md) 0;}}
@media (min-width:1024px){.section{padding:var(--sect-lg) 0;}}
.section-head{margin-bottom:36px;}
.section-head h2 + p{margin-top:14px;}
.section-head--split{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:11px 22px;
  border-radius:var(--radius-sm);
  font-size:15.5px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px -12px rgba(29,90,150,.7);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(29,90,150,.85);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -10px rgba(29,90,150,.7);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14.5px;}
.btn-lg{min-height:50px;padding:14px 28px;font-size:16.5px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--primary);
}
.link-arrow i{font-size:12px;transition:transform var(--ease),color var(--ease);}
.link-arrow:hover{color:var(--amber);}
.link-arrow:hover i{transform:translateX(4px);color:var(--amber);}

/* ===== 标签 / 徽章 ===== */
.tag{
  display:inline-block;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  background:var(--primary-soft);
  color:var(--primary);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.tag-amber{background:var(--amber-soft);color:var(--amber);}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.site-header.is-scrolled{
  box-shadow:0 6px 20px -16px rgba(16,22,30,.28);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:64px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;
}
.brand:hover{color:var(--primary);}
.brand .mark{
  width:26px;height:26px;border-radius:8px;
  background:var(--primary);
  position:relative;flex:0 0 auto;
}
.brand .mark::after{
  content:"";position:absolute;left:7px;top:7px;width:12px;height:12px;
  border:2px solid #fff;border-radius:50% 50% 50% 0;
  transform:rotate(-45deg);
}
.nav-links{display:none;align-items:center;gap:30px;}
.nav-links a{
  position:relative;
  font-size:15.5px;color:var(--muted);font-weight:500;
  padding:6px 0;
  transition:color var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--primary);
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--primary);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.header-actions .btn-primary{display:none;}
.nav-toggle{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink);font-size:19px;border-radius:var(--radius-sm);
}
.nav-toggle:hover{color:var(--primary);background:var(--soft);}
@media (min-width:1024px){
  .header-inner{height:64px;}
  .nav-links{display:flex;}
  .header-actions .btn-primary{display:inline-flex;}
  .nav-toggle{display:none;}
}
@media (max-width:1023px){
  .header-inner{height:56px;}
  .nav-links{
    display:none;
    position:fixed;left:0;right:0;top:56px;bottom:0;
    background:#fff;
    flex-direction:column;gap:0;
    padding:8px 20px 40px;
    overflow-y:auto;
    z-index:55;
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{
    display:block;
    font-size:16.5px;
    padding:18px 0;
    border-bottom:1px solid var(--line);
    color:var(--ink);
  }
  .nav-links a::after{display:none;}
  .nav-links a.is-active{border-bottom-color:var(--primary);}
}

/* ===== 面包屑 ===== */
.breadcrumb{
  padding:18px 0 0;
  font-size:13px;
  color:var(--weak);
}
.breadcrumb a{color:var(--weak);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{margin:0 8px;color:var(--line-strong);}
.breadcrumb .current{color:var(--muted);}

/* ===== Banner（分类页2 图文 Banner） ===== */
.page-banner{padding:32px 0 0;}
.banner-box{
  background:var(--soft);
  border-radius:var(--radius-md);
  padding:36px 28px;
  display:grid;
  gap:32px;
  align-items:center;
}
@media (min-width:1024px){
  .banner-box{grid-template-columns:1fr 1fr;padding:52px 48px;gap:48px;}
}
.banner-copy h1{margin-bottom:16px;}
.banner-copy p{
  font-size:17px;color:var(--muted);line-height:1.85;margin-bottom:26px;max-width:520px;
}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;}
.banner-media{position:relative;}
.banner-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-float);
}
.banner-float{
  position:absolute;left:0;bottom:-18px;
  background:#fff;border:1px solid var(--line);
  border-radius:12px;
  padding:12px 16px;
  box-shadow:var(--shadow-card);
  font-size:13.5px;color:var(--muted);
  display:flex;align-items:center;gap:10px;
}
.banner-float i{color:var(--amber);font-size:15px;}
@media (max-width:519px){
  .banner-float{position:static;margin-top:16px;bottom:auto;}
}

/* ===== 数据条 ===== */
.stat-bar{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:#fff;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
@media (min-width:768px){.stat-bar{grid-template-columns:repeat(4,1fr);}}
.stat-item{
  padding:26px 20px;
  text-align:center;
  border-bottom:1px solid var(--line);
  border-right:1px solid var(--line);
}
.stat-item:nth-child(2n){border-right:0;}
@media (min-width:768px){
  .stat-item{border-bottom:0;}
  .stat-item:nth-child(2n){border-right:1px solid var(--line);}
  .stat-item:last-child{border-right:0;}
}
@media (max-width:767px){
  .stat-item:nth-child(n+3){border-bottom:0;}
}
.stat-item strong{
  display:block;font-size:26px;font-weight:700;color:var(--primary);letter-spacing:-.01em;
}
.stat-item span{display:block;font-size:13px;color:var(--weak);margin-top:4px;}

/* ===== 卡片矩阵（2 列） ===== */
.card-matrix{
  display:grid;gap:24px;
  grid-template-columns:1fr;
}
@media (min-width:768px){.card-matrix{grid-template-columns:repeat(2,1fr);gap:28px;}}
.matrix-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:26px 24px;
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.matrix-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(29,90,150,.2);
}
.matrix-card .idx{
  font-size:30px;font-weight:700;color:var(--amber);line-height:1;
  letter-spacing:-.03em;
}
.matrix-card .idx-line{height:1px;background:var(--line);}
.matrix-card h3{font-size:19px;}
.matrix-card p{margin:0;font-size:15.5px;color:var(--muted);line-height:1.8;}
.matrix-card .link-arrow{margin-top:auto;padding-top:4px;font-size:14.5px;}

/* ===== 配图位 ===== */
.media-block img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--radius-md);
}
.media-block figcaption{
  font-size:13px;color:var(--weak);text-align:center;margin-top:12px;
}

/* ===== 支持级别行 ===== */
.level-list{border-top:1px solid var(--line);margin-top:8px;}
.level-row{
  display:grid;gap:8px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
@media (min-width:768px){
  .level-row{grid-template-columns:200px 1fr 160px;gap:28px;align-items:baseline;}
}
.level-row:hover{background:var(--soft);}
.level-row .lv-name{
  font-size:16.5px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;gap:10px;
}
.level-row .lv-dot{
  width:8px;height:8px;border-radius:50%;background:var(--primary);flex:0 0 auto;
}
.level-row.priority .lv-dot{background:var(--amber);}
.level-row .lv-desc{font-size:15.5px;color:var(--muted);line-height:1.8;}
.level-row .lv-time{
  font-size:14.5px;font-weight:600;color:var(--primary);
}
@media (max-width:767px){
  .level-row .lv-time{color:var(--amber);}
}

/* ===== 问答（左右两栏） ===== */
.qa-list{border-top:1px solid var(--line);}
.qa-item{
  display:grid;gap:10px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
}
@media (min-width:768px){
  .qa-item{grid-template-columns:300px 1fr;gap:40px;}
}
.qa-item h3{
  font-size:17.5px;font-weight:600;color:var(--ink);line-height:1.55;
  position:relative;padding-left:18px;
}
.qa-item h3::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;
  width:3px;border-radius:2px;background:var(--primary);
}
.qa-item p{margin:0;font-size:15.5px;color:var(--muted);line-height:1.85;}

/* ===== 内链区 ===== */
.inner-links{
  display:flex;flex-wrap:wrap;gap:28px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.inner-links .link-arrow{font-size:15.5px;}

/* ===== CTA 表单 ===== */
.cta-panel{
  background:var(--soft);
  border-radius:var(--radius-md);
  padding:36px 24px;
  display:grid;gap:32px;
}
@media (min-width:1024px){
  .cta-panel{grid-template-columns:1fr 1fr;padding:52px 48px;gap:56px;}
}
.cta-panel h2{margin-bottom:14px;}
.cta-panel .lead{margin-bottom:22px;max-width:480px;}
.cta-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15.5px;color:var(--muted);margin-bottom:12px;
}
.cta-points i{color:var(--amber);margin-top:5px;font-size:14px;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:26px 22px;box-shadow:var(--shadow-card);
}
.field{margin-bottom:16px;}
.field label{
  display:block;font-size:12.5px;color:var(--weak);margin-bottom:6px;letter-spacing:.02em;
}
.field input,.field textarea{
  width:100%;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-sm);
  padding:11px 14px;
  min-height:44px;
  font-size:15px;
  background:#fff;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--weak);font-size:14px;}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(29,90,150,.12);
}
.field .err{
  display:none;
  font-size:12.5px;
  color:#B4562A;
  margin-top:6px;
}
.field.has-error input,.field.has-error textarea{border-color:#D08A5C;}
.field.has-error .err{display:block;}
.form-note{font-size:13px;color:var(--weak);margin:12px 0 0;}
.form-card .btn{width:100%;}
.form-tip{
  display:none;
  margin-top:14px;
  font-size:14px;
  color:var(--primary-dark);
  background:var(--primary-soft);
  border-radius:var(--radius-sm);
  padding:10px 14px;
}
.form-tip.is-visible{display:block;}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--soft);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:var(--sect-lg);
}
.footer-grid{
  display:grid;gap:36px;
  grid-template-columns:1fr;
  padding-bottom:44px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:44px;}}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:14.5px;color:var(--muted);line-height:1.85;max-width:340px;margin-bottom:16px;
}
.footer-brand .contact{
  font-size:14px;color:var(--weak);line-height:1.9;
}
.footer-col h4{
  font-size:15px;font-weight:600;color:var(--ink);margin-bottom:16px;
}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14.5px;color:var(--muted);}
.footer-col a:hover{color:var(--primary);text-decoration:underline;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13.5px;color:var(--weak);
}
.footer-bottom a{color:var(--weak);}
.footer-bottom a:hover{color:var(--primary);}

/* ===== 底部固定转化条 ===== */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.96);
  border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -18px rgba(16,22,30,.35);
  padding:10px 20px calc(10px + env(safe-area-inset-bottom));
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.sticky-bar .sticky-text{
  font-size:14px;color:var(--muted);line-height:1.4;
}
body{padding-bottom:72px;}
@media (min-width:1024px){
  body{padding-bottom:0;}
  .sticky-bar{
    opacity:0;visibility:hidden;transform:translateY(12px);
    transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
    padding:8px 20px;
    max-width:1200px;
    margin:0 auto;
    border-radius:12px 12px 0 0;
    border-left:1px solid var(--line);
    border-right:1px solid var(--line);
  }
  .sticky-bar.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
  .sticky-bar.is-hidden{opacity:0;visibility:hidden;transform:translateY(12px);}
}
@media (max-width:1023px){
  .sticky-bar .sticky-text{font-size:13.5px;}
}
@media (max-width:519px){
  .sticky-bar .sticky-text{display:none;}
  .sticky-bar .btn{width:100%;}
}