/* roulang page: index */
:root{
  --primary:#2F7DD1;
  --primary-dark:#2569B2;
  --mint:#17B3A6;
  --orange:#FF8A3D;
  --bg:#F6F9FD;
  --surface:#FFFFFF;
  --ink:#132238;
  --sub:#5B6B7F;
  --line:#DCE6F2;
  --ok:#16A34A;
  --warn:#D97706;
  --err:#DC2626;
  --footer-bg:#EEF4FA;
  --r-btn:12px;
  --r-card:18px;
  --r-img:16px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(19,34,56,.04), 0 12px 28px rgba(47,125,209,.10);
  --sh-hover:0 16px 36px rgba(47,125,209,.16);
  --sh-nav:0 6px 20px rgba(19,34,56,.08);
  --f-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:28px;
  color:var(--ink);
  background:var(--bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,box-shadow .18s ease;}
a:hover{color:var(--primary-dark);}
button,input,select,textarea{font-family:inherit;font-size:15px;}
h1,h2,h3,h4{font-weight:700;margin:0;color:var(--ink);letter-spacing:.2px;}
h1{font-size:40px;line-height:48px;}
h2{font-size:28px;line-height:36px;}
h3{font-size:20px;line-height:28px;}
h4{font-size:17px;line-height:26px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num,.pct,.meta-time,.stat-num{font-variant-numeric:tabular-nums;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-nav);}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,var(--primary),#57A0E6);
  color:#fff;font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(47,125,209,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text .b1{font-size:15px;font-weight:700;color:var(--ink);}
.brand-text .b2{font-size:11px;color:var(--sub);letter-spacing:.4px;}
.nav-main{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.nav-main a{
  display:inline-block;padding:8px 14px;border-radius:10px;
  font-size:15px;color:var(--ink);font-weight:500;position:relative;
}
.nav-main a:hover{background:#F1F6FD;color:var(--primary);}
.nav-main a.is-active{color:var(--primary);}
.nav-main a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--primary);
}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  height:40px;padding:0 12px;background:#fff;width:220px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,125,209,.18);}
.nav-search input{
  border:0;outline:0;background:transparent;height:38px;width:100%;font-size:14px;color:var(--ink);
}
.nav-search svg{flex:0 0 auto;opacity:.6;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(47,125,209,.26);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(47,125,209,.32);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(47,125,209,.24);}
.btn-ghost{background:#fff;color:var(--primary);border-color:#BBD6F1;}
.btn-ghost:hover{background:#F4F9FF;color:var(--primary-dark);border-color:var(--primary);transform:translateY(-1px);}
.btn-link{background:transparent;color:var(--primary);padding:0;height:auto;}
.btn-link:hover{color:var(--primary-dark);text-decoration:underline;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(47,125,209,.38);
}

/* ---------- 通用图案 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:13px;line-height:20px;font-weight:600;
}
.badge-blue{background:#E8F2FC;color:#1F63A8;}
.badge-mint{background:#E3F7F4;color:#0F8C81;}
.badge-orange{background:#FFF1E5;color:#C96218;}
.badge-grey{background:#EEF2F7;color:var(--sub);}
.section{padding:80px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--sub);font-size:16px;line-height:30px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--primary);background:#E8F2FC;border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:18px;
}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(180deg,#FFFFFF 0%,#F3F8FE 100%);
  padding:calc(64px + 32px) 0 72px;
  border-bottom:1px solid var(--line);
}
.hero-grid{align-items:center;}
.hero-copy h1{margin-bottom:20px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:#1F63A8;background:#E8F2FC;
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:22px;
}
.hero-sub{font-size:17px;line-height:32px;color:var(--sub);margin-bottom:28px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--sub);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--mint);flex:0 0 auto;}
.dot.blue{background:var(--primary);}
.dot.orange{background:var(--orange);}
.hero-visual{position:relative;}
.hero-figure{
  position:relative;border-radius:20px;overflow:hidden;
  box-shadow:var(--sh-card);background:#fff;border:1px solid var(--line);
}
.hero-figure img{width:100%;height:420px;object-fit:cover;border-radius:0;}
.hero-float{
  position:absolute;left:20px;bottom:20px;right:20px;
  background:rgba(255,255,255,.96);backdrop-filter:blur(2px);
  border:1px solid var(--line);border-radius:14px;padding:14px 16px;
  box-shadow:0 10px 24px rgba(19,34,56,.14);
}
.hero-float .hf-top{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--sub);margin-bottom:10px;}
.hero-float .hf-top strong{color:var(--ink);font-size:15px;}
.track{height:8px;border-radius:var(--r-pill);background:#E6EFF9;overflow:hidden;}
.track > i{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--primary),var(--mint));}

/* ---------- 信任条 ---------- */
.stats{background:#fff;border-bottom:1px solid var(--line);padding:28px 0;}
.stats-grid{display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between;}
.stat{display:flex;flex-direction:column;gap:4px;}
.stat-num{font-size:26px;font-weight:700;color:var(--primary);line-height:32px;}
.stat-label{font-size:13px;color:var(--sub);}

/* ---------- 流程 ---------- */
.steps-layout{align-items:flex-start;}
.step-list{display:flex;flex-direction:column;gap:18px;}
.step-item{
  display:flex;gap:18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#C6DEF5;}
.step-no{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  background:#E8F2FC;color:#1F63A8;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
}
.step-body h3{margin-bottom:8px;font-size:18px;}
.step-body p{color:var(--sub);font-size:15px;line-height:26px;margin-bottom:12px;}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;}
.rail{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-card);
}
.rail h4{margin-bottom:18px;}
.rail-list li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);
  font-size:14px;color:var(--sub);line-height:24px;
}
.rail-list li:last-child{border-bottom:0;padding-bottom:0;}
.rail-list li b{color:var(--ink);font-weight:600;}
.rail-index{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:#E8F2FC;color:#1F63A8;
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px;
}

/* ---------- 奖励预览 ---------- */
.reward{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.reward-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);height:100%;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.reward-main:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.reward-main img{width:100%;height:260px;object-fit:cover;border-radius:0;}
.reward-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.reward-body h3{font-size:20px;}
.reward-body p{color:var(--sub);font-size:14px;line-height:25px;}
.reward-side{display:flex;flex-direction:column;gap:24px;height:100%;}
.reward-mini{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease;flex:1;
}
.reward-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.reward-mini img{width:120px;height:104px;object-fit:cover;flex:0 0 auto;}
.reward-mini .rm-body{display:flex;flex-direction:column;gap:8px;}
.reward-mini h3{font-size:17px;line-height:25px;}
.reward-mini p{font-size:13px;line-height:22px;color:var(--sub);}

/* ---------- 进度 ---------- */
.progress-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-card);
}
.progress-top{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;}
.progress-num{font-size:38px;font-weight:700;color:var(--primary);line-height:44px;}
.progress-num small{font-size:16px;font-weight:600;color:var(--sub);margin-left:6px;}
.progress-desc{font-size:14px;color:var(--sub);max-width:520px;line-height:24px;}
.progress-track{height:12px;border-radius:var(--r-pill);background:#E6EFF9;overflow:hidden;margin-bottom:28px;}
.progress-track > i{display:block;height:100%;width:78%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--primary),var(--mint));}
.nodes{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.node{
  border:1px solid var(--line);border-radius:14px;padding:18px;background:#FBFDFF;
  display:flex;flex-direction:column;gap:10px;transition:transform .2s ease,box-shadow .2s ease;
}
.node:hover{transform:translateY(-3px);box-shadow:var(--sh-card);}
.node-done{border-color:#BFE9E3;background:#F4FCFB;}
.node-active{border-color:#BCD8F4;background:#F3F9FF;}
.node .node-title{font-size:15px;font-weight:600;color:var(--ink);}
.node .node-note{font-size:13px;color:var(--sub);line-height:22px;}
.node-head{display:flex;align-items:center;justify-content:space-between;gap:8px;}

/* ---------- 最新信息 ---------- */
.news{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.news-feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);height:100%;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.news-feature img{width:100%;height:250px;object-fit:cover;border-radius:0;}
.news-feature .nf-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-feature h3{font-size:22px;line-height:31px;}
.news-feature p{color:var(--sub);font-size:15px;line-height:26px;}
.news-list{display:flex;flex-direction:column;gap:16px;height:100%;}
.news-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease;flex:1;
}
.news-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.news-item img{width:112px;height:92px;object-fit:cover;flex:0 0 auto;}
.news-item .ni-body{display:flex;flex-direction:column;gap:8px;min-width:0;}
.news-item h3{font-size:17px;line-height:25px;}
.news-item p{font-size:13px;line-height:22px;color:var(--sub);}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--sub);margin-top:auto;padding-top:8px;}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;color:var(--sub);font-size:15px;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item:hover{border-color:#C6DEF5;box-shadow:var(--sh-card);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:#E8F2FC;color:#1F63A8;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  transition:transform .25s ease,background-color .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 24px 22px;color:var(--sub);font-size:15px;line-height:27px;}

/* ---------- CTA ---------- */
.cta{
  background:#E8F2FC;border-top:1px solid #D3E5F8;border-bottom:1px solid #D3E5F8;
  padding:56px 0;
}
.cta-grid{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta h2{font-size:26px;line-height:34px;margin-bottom:10px;}
.cta p{color:#33506E;font-size:15px;line-height:26px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);border-top:1px solid var(--line);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,#5A9EE4,#2F7DD1);}
.footer-about{font-size:14px;line-height:25px;color:var(--sub);max-width:340px;}
.footer-col h4{font-size:15px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--sub);}
.footer-col ul a:hover{color:var(--primary);}
.footer-contact li{font-size:14px;color:var(--sub);margin-bottom:10px;line-height:24px;}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--sub);
}
.footer-bottom a{color:var(--sub);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- 滚动淡入 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{scroll-behavior:auto !important;}
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  h1{font-size:32px;line-height:40px;}
  h2{font-size:24px;line-height:32px;}
  .section{padding:56px 0;}
  .nav-main,.nav-search{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:calc(64px + 20px) 0 48px;}
  .hero-figure img{height:340px;}
  .nodes{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .mobile-drawer{display:block;}
}
@media screen and (max-width:767px){
  .hero-figure img{height:280px;}
  .hero-points{gap:14px;}
  .reward-mini{flex-direction:column;}
  .reward-mini img{width:100%;height:160px;}
  .news-item{flex-direction:column;}
  .news-item img{width:100%;height:170px;}
  .progress-panel{padding:24px;}
  .progress-num{font-size:30px;line-height:38px;}
  .cta-grid{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
}
@media screen and (max-width:519px){
  h1{font-size:28px;line-height:36px;}
  h2{font-size:22px;line-height:30px;}
  .container{padding:0 18px;}
  .section{padding:40px 0;}
  .brand-text .b2{display:none;}
  .nodes{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .stats-grid{gap:20px;}
}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;
  background:#fff;z-index:90;transform:translateX(102%);
  transition:transform .28s ease;box-shadow:-12px 0 32px rgba(19,34,56,.16);
  padding:20px;display:none;flex-direction:column;gap:6px;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.mobile-drawer .drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;
  font-size:18px;color:var(--ink);cursor:pointer;
}
.mobile-drawer a.drawer-link{
  display:block;padding:13px 14px;border-radius:12px;font-size:15px;color:var(--ink);font-weight:500;
}
.mobile-drawer a.drawer-link:hover,.mobile-drawer a.drawer-link.is-active{background:#F1F6FD;color:var(--primary);}
.mobile-drawer .drawer-cta{margin-top:14px;}
.mobile-drawer .drawer-search{margin-bottom:12px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(19,34,56,.34);z-index:80;display:none;
}
.drawer-mask.is-open{display:block;}

/* roulang page: article */
:root{
  --brand:#2F7DD1;
  --brand-dark:#2568B0;
  --brand-soft:#EAF3FC;
  --mint:#17B3A6;
  --mint-soft:#E4F7F5;
  --orange:#FF8A3D;
  --orange-soft:#FFF1E7;
  --bg:#F6F9FD;
  --surface:#FFFFFF;
  --ink:#132238;
  --sub:#5B6B7F;
  --line:#DCE6F2;
  --ok:#16A34A;
  --warn:#D97706;
  --err:#DC2626;
  --r-btn:12px;
  --r-card:18px;
  --r-img:16px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(19,34,56,.04),0 12px 28px rgba(47,125,209,.10);
  --sh-card-hover:0 16px 36px rgba(47,125,209,.16);
  --sh-nav:0 6px 20px rgba(19,34,56,.08);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:28px;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0 0 12px;font-weight:700;letter-spacing:.2px;}
h1{font-size:40px;line-height:48px;}
h2{font-size:28px;line-height:36px;}
h3{font-size:20px;line-height:28px;}
h4{font-size:17px;line-height:26px;}
p{margin:0 0 16px;}
ul,ol{margin:0 0 16px;padding-left:20px;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(47,125,209,.45);outline-offset:2px;border-radius:8px;}
.tnum{font-variant-numeric:tabular-nums;}

/* 容器 */
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.narrow{max-width:820px;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-nav);}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;
  box-shadow:0 6px 14px rgba(47,125,209,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:15px;color:var(--ink);font-weight:700;}
.brand-text span{font-size:12px;color:var(--sub);line-height:16px;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.nav-main a{
  display:inline-block;padding:20px 12px;font-size:15px;color:var(--sub);
  border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease;
}
.nav-main a:hover{color:var(--brand);}
.nav-main a.is-active{color:var(--brand);font-weight:700;border-bottom-color:var(--brand);}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  height:44px;width:220px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;font-size:14px;color:var(--ink);background:#FBFDFF;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search::placeholder{color:#9AAABD;}
.nav-search:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,125,209,.16);outline:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-btn);color:var(--ink);font-size:18px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color: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;line-height:20px;font-weight:700;cursor:pointer;
  border:1px solid transparent;transition:all .18s ease;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,125,209,.24);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:#BBD8F2;}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-soft{background:var(--brand-soft);color:var(--brand);}
.btn-soft:hover{background:#DCEBF9;color:var(--brand-dark);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:15px;
  border-bottom:1px solid transparent;
}
.btn-link:hover{border-bottom-color:var(--brand);}
.btn-block{width:100%;}

/* 徽章 / 标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;line-height:26px;font-weight:700;
}
.badge-blue{background:var(--brand-soft);color:var(--brand);}
.badge-mint{background:var(--mint-soft);color:#0E8C82;}
.badge-orange{background:var(--orange-soft);color:#D96B18;}
.badge-ok{background:#E8F7ED;color:var(--ok);}
.badge-warn{background:#FDF3E3;color:var(--warn);}
.badge-grey{background:#EFF3F8;color:var(--sub);}
.tag{
  display:inline-block;padding:4px 10px;border-radius:8px;background:#F1F6FC;
  color:var(--sub);font-size:12px;line-height:18px;
}

/* 面包屑 */
.breadcrumb-wrap{background:var(--surface);border-bottom:1px solid var(--line);}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:14px 0;font-size:13px;line-height:22px;color:var(--sub);
}
.breadcrumb a{color:var(--sub);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#B6C4D6;}
.breadcrumb .current{color:var(--ink);font-weight:700;}

/* 文章头部 */
.article-hero{background:linear-gradient(180deg,#FFFFFF 0%,#F2F7FD 100%);border-bottom:1px solid var(--line);}
.article-hero-inner{padding:48px 0 40px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:16px;font-size:13px;color:var(--sub);}
.article-title{font-size:40px;line-height:52px;margin-bottom:16px;}
.article-lead{font-size:17px;line-height:30px;color:var(--sub);max-width:820px;margin-bottom:0;}
.article-cover{margin-top:32px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-card);}
.article-cover img{width:100%;height:340px;object-fit:cover;border-radius:0;}

/* 布局 */
.layout{padding:48px 0 72px;}
.layout .grid-x{gap:0;}
.cell-main{padding-right:40px;}
.cell-side{padding-left:8px;}

/* 正文 */
.article-body{
  max-width:820px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);padding:40px;
  font-size:17px;line-height:30px;color:var(--ink);
}
.article-body h2{
  font-size:24px;line-height:34px;margin:36px 0 16px;padding-left:14px;
  border-left:3px solid var(--brand);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:20px;line-height:30px;margin:28px 0 12px;}
.article-body h4{font-size:17px;line-height:26px;margin:22px 0 10px;color:var(--brand-dark);}
.article-body p{margin:0 0 1.2em;}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.2em;}
.article-body li{margin-bottom:8px;}
.article-body blockquote{
  margin:0 0 1.2em;padding:16px 20px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 12px 12px 0;color:#2C4258;font-size:16px;
}
.article-body img{border-radius:var(--r-img);margin:20px 0;}
.article-body figure{margin:20px 0;}
.article-body figcaption{font-size:13px;color:var(--sub);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;display:block;overflow-x:auto;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:#F4F8FD;font-weight:700;}
.article-body code{background:#F1F5FA;padding:2px 6px;border-radius:6px;font-size:15px;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:28px 0;}

/* 空态 */
.empty-state{
  max-width:820px;background:var(--surface);border:1px dashed var(--line);
  border-radius:var(--r-card);padding:56px 32px;text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:22px;
}
.empty-state h2{font-size:22px;line-height:32px;margin-bottom:8px;}
.empty-state p{color:var(--sub);margin-bottom:20px;}

/* 侧栏卡片 */
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:24px;margin-bottom:24px;
}
.side-card h3{font-size:17px;line-height:26px;margin-bottom:14px;}
.side-card p{font-size:14px;line-height:24px;color:var(--sub);margin-bottom:0;}
.side-list{list-style:none;padding:0;margin:0;}
.side-list li{padding:12px 0;border-bottom:1px dashed var(--line);}
.side-list li:last-child{border-bottom:none;padding-bottom:0;}
.side-list a{font-size:15px;font-weight:700;color:var(--ink);display:block;line-height:24px;}
.side-list a:hover{color:var(--brand);}
.side-list .meta{font-size:13px;color:var(--sub);margin-top:6px;display:flex;gap:10px;align-items:center;}
.info-row{display:flex;justify-content:space-between;font-size:14px;color:var(--sub);padding:10px 0;border-bottom:1px solid var(--line);}
.info-row:last-child{border-bottom:none;}
.info-row strong{color:var(--ink);font-weight:700;}
.side-cta{background:var(--brand-soft);border-color:#CFE2F6;}
.side-cta h3{color:var(--brand-dark);}

/* 相关推荐 */
.related{background:var(--surface);border-top:1px solid var(--line);padding:64px 0;}
.section-head{margin-bottom:28px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);padding:5px 12px;border-radius:var(--r-pill);margin-bottom:12px;
}
.section-head h2{margin-bottom:8px;}
.section-head p{color:var(--sub);margin:0;max-width:720px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);}
.card img{width:100%;height:180px;object-fit:cover;border-radius:0;}
.card-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{font-size:18px;line-height:26px;margin-bottom:10px;}
.card-body h3 a{color:var(--ink);}
.card-body h3 a:hover{color:var(--brand);}
.card-body p{font-size:14px;line-height:24px;color:var(--sub);margin-bottom:16px;}
.card-foot{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--sub);
}
.card-foot .date{font-variant-numeric:tabular-nums;}

/* 返回 / 翻页 */
.post-nav{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 24px;margin-top:28px;box-shadow:var(--sh-card);
}
.post-nav .links{display:flex;flex-wrap:wrap;gap:20px;}

/* CTA 通栏 */
.cta-band{background:var(--brand-soft);border-top:1px solid #D5E6F8;border-bottom:1px solid #D5E6F8;padding:48px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta-inner h2{font-size:26px;line-height:36px;margin-bottom:8px;}
.cta-inner p{margin:0;color:#3D5670;font-size:15px;line-height:26px;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;}

/* FAQ */
.faq-section{padding:72px 0;background:var(--surface);border-top:1px solid var(--line);}
.faq-list{max-width:900px;margin:0 auto;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);}
.faq-item{border-bottom:1px solid var(--line);background:#fff;}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;line-height:26px;font-weight:700;color:var(--ink);transition:color .18s ease,background .18s ease;
}
.faq-q:hover{color:var(--brand);background:#F8FBFF;}
.faq-q i{transition:transform .22s ease;color:var(--brand);font-size:14px;}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{display:none;padding:0 24px 22px;font-size:15px;line-height:28px;color:var(--sub);}
.faq-item.is-open .faq-a{display:block;}

/* 页脚 */
.site-footer{background:#EEF4FA;border-top:1px solid var(--line);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-about{font-size:14px;line-height:24px;color:var(--sub);margin:0;}
.footer-col h4{font-size:15px;line-height:24px;margin-bottom:14px;color:var(--ink);}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;font-size:14px;line-height:22px;color:var(--sub);}
.footer-col a{color:var(--sub);}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{color:var(--sub);}
.footer-bottom{
  border-top:1px solid #D8E4F0;padding:18px 0;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:10px;font-size:13px;color:var(--sub);
}
.footer-bottom a{color:var(--sub);}
.footer-bottom a:hover{color:var(--brand);}

/* 响应式 */
@media screen and (max-width:1023px){
  h1{font-size:32px;line-height:40px;}
  .article-title{font-size:32px;line-height:42px;}
  h2{font-size:24px;line-height:34px;}
  .nav-main,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-inner{justify-content:space-between;}
  .cell-main{padding-right:0;}
  .cell-side{padding-left:0;margin-top:32px;}
  .article-body{padding:28px 22px;font-size:16px;line-height:29px;}
  .article-cover img{height:260px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media screen and (max-width:639px){
  .container{padding:0 16px;}
  h1{font-size:28px;line-height:36px;}
  .article-title{font-size:28px;line-height:38px;}
  h2{font-size:22px;line-height:32px;}
  .article-hero-inner{padding:28px 0 28px;}
  .article-cover img{height:190px;}
  .layout{padding:28px 0 48px;}
  .card-grid{grid-template-columns:1fr;}
  .related{padding:44px 0;}
  .faq-section{padding:44px 0;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .post-nav{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category1 */
:root{
  --brand:#2F7DD1;
  --brand-dark:#2569b3;
  --brand-soft:#E8F1FB;
  --mint:#17B3A6;
  --mint-soft:#E4F7F5;
  --orange:#FF8A3D;
  --orange-soft:#FFF1E7;
  --bg:#F6F9FD;
  --surface:#FFFFFF;
  --ink:#132238;
  --muted:#5B6B7F;
  --line:#DCE6F2;
  --success:#16A34A;
  --warn:#D97706;
  --danger:#DC2626;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:16px;
  --shadow-card:0 1px 2px rgba(19,34,56,.04), 0 12px 28px rgba(47,125,209,.10);
  --shadow-card-hover:0 16px 36px rgba(47,125,209,.16);
  --shadow-nav:0 6px 20px rgba(19,34,56,.08);
  --pad-section:80px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:28px;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
input,button,select,textarea{font-size:15px;font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:.2px;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:64px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:36px;height:36px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--brand),#3f93e6);
  color:#fff;
  font-size:17px;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:15px;color:var(--ink);font-weight:700;letter-spacing:.1px;}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.2px;}
.nav-main{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
}
.nav-main a{
  position:relative;
  display:inline-block;
  padding:20px 12px;
  font-size:15px;
  color:#33465c;
  font-weight:500;
  white-space:nowrap;
}
.nav-main a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:12px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .2s ease;
}
.nav-main a:hover{color:var(--brand);}
.nav-main a:hover::after{transform:scaleX(1);}
.nav-main a.is-active{color:var(--brand);font-weight:700;}
.nav-main a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;
  align-items:center;
  height:40px;
  width:232px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#F8FBFE;
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.nav-search:focus-within{
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 3px rgba(47,125,209,.16);
}
.nav-search input{
  border:0;outline:0;background:transparent;
  flex:1 1 auto;height:100%;padding:0 12px;color:var(--ink);
  font-size:14px;
}
.nav-search input::placeholder{color:#93a3b6;}
.search-btn{
  border:0;cursor:pointer;
  background:transparent;
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  padding:0 12px;
  height:100%;
}
.search-btn:hover{color:var(--brand-dark);}
.hamburger{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:11px;
  background:#fff;
  cursor:pointer;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.hamburger span{
  display:block;width:17px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform .2s ease,opacity .2s ease;
}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 移动端抽屉 */
.drawer{
  position:fixed;
  top:0;right:0;
  width:min(86vw,340px);
  height:100%;
  background:#fff;
  border-left:1px solid var(--line);
  box-shadow:-12px 0 32px rgba(19,34,56,.14);
  transform:translateX(104%);
  transition:transform .26s ease;
  z-index:80;
  padding:22px 20px 32px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head strong{font-size:15px;}
.drawer-close{
  border:1px solid var(--line);background:#fff;border-radius:10px;
  width:34px;height:34px;cursor:pointer;color:var(--muted);font-size:16px;line-height:1;
}
.drawer-close:hover{color:var(--brand);border-color:var(--brand);}
.drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:18px;}
.drawer nav a{
  padding:12px 14px;
  border-radius:12px;
  color:#33465c;
  font-size:15px;
  font-weight:500;
  border:1px solid transparent;
}
.drawer nav a:hover{background:var(--brand-soft);color:var(--brand);}
.drawer nav a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700;border-color:#cfe2f7;}
.drawer .nav-search{width:100%;margin-bottom:14px;}
.drawer .btn{width:100%;justify-content:center;}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(19,34,56,.36);
  opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;
  z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 通用按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:20px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,125,209,.24);}
.btn-primary:hover{background:#2a72c0;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(47,125,209,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:#bcdaef;}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:11px;}
.btn-block{width:100%;}
.btn:focus-visible,
a:focus-visible,
.hamburger:focus-visible,
.drawer-close:focus-visible,
summary:focus-visible,
input:focus-visible{
  outline:3px solid rgba(47,125,209,.45);
  outline-offset:2px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.2px;
}
.badge-blue{background:var(--brand-soft);color:var(--brand);}
.badge-mint{background:var(--mint-soft);color:#0e8d83;}
.badge-orange{background:var(--orange-soft);color:#c2620f;}
.badge-grey{background:#EEF4FA;color:var(--muted);}
.badge-success{background:#E6F7EC;color:var(--success);}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  padding:22px 0 0;
  font-size:13px;
  line-height:22px;
  color:var(--muted);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px;}
.breadcrumb li{display:inline-flex;align-items:center;gap:6px;}
.breadcrumb li+li::before{content:"/";color:#a9b8c9;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;}
.breadcrumb .current{color:var(--ink);font-weight:600;}

/* ---------- 分类 Hero ---------- */
.cat-hero{padding:26px 0 40px;}
.cat-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:40px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:var(--shadow-card);
  padding:36px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  margin-bottom:16px;
}
.cat-hero h1{
  font-size:38px;
  line-height:48px;
  letter-spacing:.3px;
  margin-bottom:16px;
}
.cat-hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{
  color:var(--muted);
  font-size:16px;
  line-height:28px;
  max-width:640px;
  margin-bottom:22px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  padding-top:18px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--muted);
}
.hero-meta b{color:var(--ink);}
.cat-hero-figure{
  position:relative;
  border-radius:var(--radius-img);
  overflow:hidden;
  box-shadow:0 12px 30px rgba(19,34,56,.12);
}
.cat-hero-figure img{
  width:100%;
  height:300px;
  object-fit:cover;
}
.cat-hero-tag{
  position:absolute;
  left:16px;bottom:16px;
  background:rgba(255,255,255,.94);
  border-radius:14px;
  padding:10px 14px;
  box-shadow:0 8px 20px rgba(19,34,56,.16);
  font-size:13px;
  line-height:20px;
  color:var(--ink);
}
.cat-hero-tag b{display:block;font-size:17px;color:var(--brand);}

/* ---------- 主体两栏 ---------- */
.page-body{padding:8px 0 var(--pad-section);}
.layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:32px;
  align-items:start;
}
.main-col{min-width:0;}
.side-col{min-width:0;}

.section{margin-bottom:44px;}
.section:last-child{margin-bottom:0;}
.section-head{margin-bottom:20px;}
.section-head h2{
  font-size:26px;
  line-height:36px;
  padding-left:14px;
  border-left:4px solid var(--brand);
  border-radius:2px;
}
.section-head p{
  margin:10px 0 0 14px;
  color:var(--muted);
  font-size:14px;
  line-height:24px;
}
.panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:0 1px 2px rgba(19,34,56,.04),0 8px 22px rgba(47,125,209,.07);
  padding:26px;
}
.panel + .panel{margin-top:20px;}
.panel h3{font-size:19px;line-height:28px;margin-bottom:12px;}
.panel p{color:#3c4d63;font-size:15px;line-height:27px;margin-bottom:14px;}
.panel p:last-child{margin-bottom:0;}

/* 要点列表 */
.point-list{display:flex;flex-direction:column;gap:14px;}
.point-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  line-height:26px;
  color:#3c4d63;
}
.point-list .dot{
  flex:0 0 auto;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand);
  margin-top:9px;
}
.point-list li b{color:var(--ink);}

/* 检查清单 */
.check-list{display:flex;flex-direction:column;gap:0;}
.check-list li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:#3c4d63;
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list li:first-child{padding-top:0;}
.check-list .check-name{display:flex;align-items:center;gap:10px;}
.check-list .check-name i{
  display:inline-flex;align-items:center;justify-content:center;
  width:22px;height:22px;border-radius:7px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-style:normal;font-weight:700;
}

/* 时间线步骤 */
.steps{position:relative;padding-left:32px;}
.steps::before{
  content:"";
  position:absolute;
  left:11px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--brand),#cfe2f7);
  border-radius:2px;
}
.step{position:relative;padding-bottom:24px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";
  position:absolute;
  left:-27px;top:6px;
  width:12px;height:12px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--brand);
}
.step.is-done::before{border-color:var(--mint);}
.step-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:6px;}
.step-head span.no{
  font-size:13px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.step-head h3{font-size:17px;line-height:26px;margin:0;}
.step p{font-size:14.5px;line-height:26px;color:var(--muted);margin:0;}

/* 不对称卡片网格 */
.asym-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:20px;
  align-items:stretch;
}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
.card-media{position:relative;}
.card-media img{width:100%;height:100%;object-fit:cover;}
.card-media.ratio-16-10{aspect-ratio:16/10;}
.card-media.ratio-16-9{aspect-ratio:16/9;}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{font-size:18px;line-height:26px;}
.card-body p{font-size:14px;line-height:24px;color:var(--muted);margin:0;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:6px;
  font-size:13px;color:var(--muted);
}
.card-link{font-size:14px;font-weight:600;color:var(--brand);}
.card-link:hover{text-decoration:underline;}
.card-lg .card-media{flex:1 1 auto;min-height:210px;}
.card-lg .card-body h3{font-size:20px;line-height:29px;}
.card-sm .card-body{padding:18px 20px;}
.card-sm .card-body h3{font-size:16.5px;line-height:25px;}

/* 两列小卡 */
.mini-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.mini{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:0 1px 2px rgba(19,34,56,.04),0 8px 20px rgba(47,125,209,.07);
  padding:22px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
.mini h3{font-size:17px;line-height:26px;margin-bottom:8px;}
.mini p{font-size:14px;line-height:24px;color:var(--muted);margin:0 0 12px;}
.mini ul{display:flex;flex-direction:column;gap:8px;}
.mini ul li{
  font-size:13.5px;line-height:23px;color:#3c4d63;
  padding-left:14px;position:relative;
}
.mini ul li::before{
  content:"";position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:50%;background:var(--mint);
}

/* 提示信息表 */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:#fff;
  box-shadow:0 1px 2px rgba(19,34,56,.04),0 8px 22px rgba(47,125,209,.07);
}
table.tip-table{width:100%;border-collapse:collapse;min-width:620px;}
table.tip-table th,table.tip-table td{
  text-align:left;
  padding:15px 20px;
  font-size:14px;
  line-height:24px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
table.tip-table th{
  background:#F3F8FD;
  color:var(--ink);
  font-weight:700;
  white-space:nowrap;
  font-size:13.5px;
}
table.tip-table tr:last-child td{border-bottom:0;}
table.tip-table td:first-child{color:var(--ink);font-weight:600;width:34%;}
table.tip-table td{color:var(--muted);}
table.tip-table tbody tr:hover{background:#FAFCFF;}

/* 侧栏 */
.side-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:0 1px 2px rgba(19,34,56,.04),0 8px 22px rgba(47,125,209,.07);
  padding:22px;
}
.side-card h3{
  font-size:16px;line-height:25px;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3::before{
  content:"";width:4px;height:16px;border-radius:2px;background:var(--brand);
}
.toc{display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:block;
  padding:9px 12px;
  border-radius:10px;
  font-size:14px;
  color:#3c4d63;
  border-left:2px solid transparent;
}
.toc a:hover{background:var(--brand-soft);color:var(--brand);border-left-color:var(--brand);}
.side-note{
  background:linear-gradient(180deg,#F4F9FF,#FFFFFF);
  border:1px solid #CFE2F6;
}
.side-note ul{display:flex;flex-direction:column;gap:10px;}
.side-note li{
  font-size:13.5px;line-height:23px;color:#3c4d63;
  display:flex;gap:8px;
}
.side-note li span{
  flex:0 0 auto;color:var(--mint);font-weight:700;
}
.side-links{display:flex;flex-direction:column;gap:10px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:12px;
  font-size:14px;
  color:#33465c;
  background:#fff;
  transition:border-color .18s ease,color .18s ease,transform .18s ease;
}
.side-links a:hover{border-color:var(--brand);color:var(--brand);transform:translateX(2px);}
.side-links a i{font-style:normal;color:var(--brand);font-size:13px;}

/* CTA 通栏 */
.cta-band{
  background:linear-gradient(135deg,#EAF3FC 0%,#F7FBFF 60%,#FFFFFF 100%);
  border:1px solid #CFE2F6;
  border-radius:22px;
  padding:34px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  box-shadow:0 1px 2px rgba(19,34,56,.04),0 12px 28px rgba(47,125,209,.10);
}
.cta-band h2{font-size:24px;line-height:34px;margin-bottom:8px;}
.cta-band p{margin:0;color:var(--muted);font-size:14.5px;line-height:25px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#EEF4FA;
  border-top:1px solid var(--line);
  padding:56px 0 0;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));
  gap:32px;
  padding-bottom:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-about{
  font-size:13.5px;
  line-height:24px;
  color:var(--muted);
  margin:0;
  max-width:360px;
}
.footer-col h4{font-size:14.5px;line-height:24px;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.5px;color:#48596e;}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{font-size:13px;color:var(--muted);line-height:22px;}
.footer-bottom{
  border-top:1px solid #DCE6F2;
  padding:18px 0 24px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-search{width:186px;}
  .nav-main a{padding:20px 10px;font-size:14.5px;}
}
@media (max-width:1023px){
  :root{--pad-section:56px;}
  .nav-main{display:none;}
  .header-actions .nav-search{display:none;}
  .header-actions .btn-sm{display:none;}
  .hamburger{display:flex;}
  .cat-hero-grid{grid-template-columns:1fr;gap:26px;padding:28px;}
  .cat-hero h1{font-size:32px;line-height:40px;}
  .cat-hero-figure img{height:250px;}
  .layout{grid-template-columns:1fr;gap:28px;}
  .side-sticky{position:static;}
  .asym-grid{grid-template-columns:1fr;}
  .card-lg .card-media{min-height:190px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
}
@media (max-width:639px){
  :root{--pad-section:40px;}
  body{font-size:15.5px;line-height:27px;}
  .container{padding:0 16px;}
  .brand-text small{display:none;}
  .cat-hero{padding:20px 0 30px;}
  .cat-hero-grid{padding:22px;border-radius:18px;}
  .cat-hero h1{font-size:27px;line-height:36px;}
  .hero-sub{font-size:15px;line-height:26px;}
  .hero-actions .btn{width:100%;}
  .section-head h2{font-size:21px;line-height:31px;}
  .panel{padding:20px;}
  .mini-grid{grid-template-columns:1fr;}
  .steps{padding-left:26px;}
  .step::before{left:-22px;}
  .cta-band{border-radius:18px;}
  .cta-band h2{font-size:20px;line-height:30px;}
  .cta-actions .btn{width:100%;flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .card:hover,.mini:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --brand:#2F7DD1;
  --brand-600:#2668b0;
  --brand-050:#EAF2FC;
  --brand-100:#D7E7F9;
  --mint:#17B3A6;
  --mint-050:#E6F7F5;
  --orange:#FF8A3D;
  --orange-050:#FFF3EA;
  --bg:#F6F9FD;
  --surface:#FFFFFF;
  --ink:#132238;
  --muted:#5B6B7F;
  --line:#DCE6F2;
  --success:#16A34A;
  --warning:#D97706;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:16px;
  --shadow-card:0 1px 2px rgba(19,34,56,.04),0 12px 28px rgba(47,125,209,.10);
  --shadow-card-hover:0 16px 36px rgba(47,125,209,.16);
  --shadow-nav:0 6px 20px rgba(19,34,56,.08);
  --container:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:28px;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section--tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;line-height:22px;font-weight:700;color:var(--brand);background:var(--brand-050);border-radius:999px;padding:4px 14px;margin-bottom:16px;}
.section-head h2{font-size:28px;line-height:36px;letter-spacing:.2px;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;line-height:28px;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;line-height:20px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(47,125,209,.24);}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-1px);box-shadow:0 14px 28px rgba(47,125,209,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-100);}
.btn-ghost:hover{border-color:var(--brand);transform:translateY(-1px);}
.btn-warm{background:var(--orange);color:#fff;box-shadow:0 10px 22px rgba(255,138,61,.26);}
.btn-warm:hover{background:#F0782A;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(47,125,209,.35);border-radius:var(--radius-btn);}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.header-inner{display:flex;align-items:center;gap:24px;min-height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(140deg,#2F7DD1,#17B3A6);color:#fff;font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.brand-text{display:flex;flex-direction:column;}
.brand-text strong{font-size:15px;line-height:20px;letter-spacing:.2px;}
.brand-text small{font-size:11px;line-height:16px;color:var(--muted);letter-spacing:.4px;}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-main a{position:relative;padding:20px 14px;font-size:15px;line-height:24px;color:var(--muted);font-weight:500;transition:color .18s ease;}
.nav-main a:hover{color:var(--brand);}
.nav-main a.is-active{color:var(--ink);font-weight:700;}
.nav-main a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:12px;height:3px;border-radius:999px;background:var(--brand);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:0 6px 0 14px;height:40px;width:220px;transition:border-color .18s ease,box-shadow .18s ease;}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,125,209,.18);}
.nav-search input{flex:1;border:0;background:transparent;height:38px;font-size:14px;color:var(--ink);outline:none;}
.nav-search button{border:0;background:var(--brand-050);color:var(--brand);height:28px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:700;cursor:pointer;}
.nav-search button:hover{background:var(--brand-100);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 24px 24px;}
.mobile-panel.is-open{display:block;}
.mobile-panel a{display:block;padding:13px 4px;font-size:15px;border-bottom:1px solid var(--line);color:var(--muted);}
.mobile-panel a.is-active{color:var(--brand);font-weight:700;}
.mobile-panel .btn{width:100%;margin-top:16px;}

/* 面包屑 */
.breadcrumb{padding:20px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;line-height:22px;color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:#B9C7D8;}
.breadcrumb li[aria-current]{color:var(--ink);font-weight:700;}

/* 分类 Hero */
.cat-hero{padding:32px 0 0;}
.cat-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.cat-hero h1{font-size:40px;line-height:48px;letter-spacing:-.4px;margin-top:14px;}
.cat-hero h1 em{font-style:normal;color:var(--brand);}
.cat-hero .lead{margin-top:18px;color:var(--muted);font-size:17px;line-height:30px;max-width:560px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;line-height:22px;font-weight:700;padding:4px 14px;border-radius:999px;background:var(--brand-050);color:var(--brand);}
.tag--mint{background:var(--mint-050);color:#0E8A80;}
.tag--warm{background:var(--orange-050);color:#C25E1B;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-media{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-card);}
.hero-media img{width:100%;height:420px;object-fit:cover;}
.media-badge{position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.95);border-radius:16px;padding:14px 18px;box-shadow:0 10px 24px rgba(19,34,56,.14);min-width:210px;}
.media-badge strong{display:block;font-size:22px;line-height:28px;color:var(--brand);}
.media-badge span{font-size:12px;line-height:20px;color:var(--muted);}

/* 节奏时间线 */
.timeline{position:relative;display:flex;flex-direction:column;gap:40px;}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;transform:translateX(-50%);background:linear-gradient(180deg,rgba(47,125,209,.35),rgba(23,179,166,.28),rgba(220,230,242,0));}
.tl-item{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.tl-item .tl-media{grid-column:1;}
.tl-item .tl-body{grid-column:2;}
.tl-item.is-reverse .tl-media{grid-column:2;order:2;}
.tl-item.is-reverse .tl-body{grid-column:1;order:1;}
.tl-media{border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-card);background:#fff;}
.tl-media img{width:100%;height:280px;object-fit:cover;}
.tl-step{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;}
.tl-step .idx{width:34px;height:34px;border-radius:12px;background:var(--brand);color:#fff;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;}
.tl-step .lbl{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.4px;}
.tl-item.is-reverse .tl-step .idx{background:var(--mint);}
.tl-item.is-reverse .tl-step .lbl{color:#0E8A80;}
.tl-body h3{font-size:20px;line-height:28px;}
.tl-body p{margin-top:12px;color:var(--muted);font-size:15px;line-height:27px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* 奖励预览 */
.reward-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;}
.reward-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
.reward-card img{width:100%;height:200px;object-fit:cover;border-bottom:1px solid var(--line);}
.reward-card .rc-body{padding:24px;}
.reward-card h3{font-size:19px;line-height:28px;}
.reward-card p{margin-top:10px;color:var(--muted);font-size:14px;line-height:24px;}
.reward-card--main img{height:280px;}
.reward-card--main h3{font-size:22px;line-height:30px;}
.reward-card--main p{font-size:15px;line-height:26px;}
.reward-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.reward-side .reward-card{display:grid;grid-template-columns:150px 1fr;align-items:stretch;}
.reward-side .reward-card img{height:100%;border-bottom:0;border-right:1px solid var(--line);}
.reward-side .rc-body{padding:20px;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.badge{font-size:12px;line-height:20px;font-weight:700;padding:2px 12px;border-radius:999px;}
.badge--blue{background:var(--brand-050);color:var(--brand);}
.badge--mint{background:var(--mint-050);color:#0E8A80;}
.badge--warm{background:var(--orange-050);color:#C25E1B;}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:700;color:var(--brand);}
.card-link:hover{text-decoration:underline;}
.reward-card--main .reward-card-inner{display:grid;grid-template-columns:1fr;}

/* 规则说明 */
.rules-wrap{display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:start;}
.rule-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:8px 24px;}
.rule-list li{display:grid;grid-template-columns:32px 1fr;gap:14px;padding:20px 0;border-bottom:1px solid var(--line);}
.rule-list li:last-child{border-bottom:0;}
.rule-list .dot{width:26px;height:26px;border-radius:9px;background:var(--brand-050);color:var(--brand);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px;}
.rule-list h3{font-size:17px;line-height:26px;}
.rule-list p{margin-top:6px;color:var(--muted);font-size:14px;line-height:25px;}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:24px;}
.aside-card h3{font-size:17px;line-height:26px;}
.aside-card p{margin-top:10px;font-size:14px;line-height:25px;color:var(--muted);}
.aside-stats{display:grid;gap:14px;margin-top:18px;}
.aside-stats div{background:var(--bg);border-radius:14px;padding:14px 16px;}
.aside-stats strong{display:block;font-size:20px;line-height:26px;color:var(--brand);font-variant-numeric:tabular-nums;}
.aside-stats span{font-size:12px;line-height:20px;color:var(--muted);}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 1px 2px rgba(19,34,56,.04);margin-bottom:14px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;}
.faq-item:hover{border-color:var(--brand-100);box-shadow:var(--shadow-card);}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;cursor:pointer;list-style:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary h3{font-size:17px;line-height:26px;transition:color .18s ease;}
.faq-item summary:hover h3{color:var(--brand);}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;transform:translate(-50%,-50%);}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;transition:transform .2s ease;}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:27px;}

/* CTA */
.cta-band{background:var(--brand-050);border-radius:24px;padding:44px;display:grid;grid-template-columns:1.3fr .7fr;gap:32px;align-items:center;border:1px solid var(--brand-100);}
.cta-band h2{font-size:26px;line-height:34px;}
.cta-band p{margin-top:12px;color:var(--muted);font-size:15px;line-height:27px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* 页脚 */
.site-footer{background:#EEF4FA;border-top:1px solid var(--line);margin-top:24px;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;font-size:16px;}
.footer-about{font-size:14px;line-height:25px;color:var(--muted);max-width:360px;}
.footer-col h4{font-size:15px;line-height:24px;margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;line-height:24px;color:var(--muted);}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{font-size:13px;line-height:24px;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin-top:40px;padding:20px 0 28px;font-size:13px;line-height:22px;color:var(--muted);}
.footer-bottom a:hover{color:var(--brand);}

@media (max-width:1023px){
  .section{padding:56px 0;}
  .nav-main{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .cat-hero h1{font-size:32px;line-height:40px;}
  .hero-media img{height:340px;}
  .timeline::before{left:16px;}
  .tl-item,.tl-item.is-reverse{grid-template-columns:1fr;gap:20px;padding-left:48px;}
  .tl-item .tl-media,.tl-item.is-reverse .tl-media{grid-column:1;order:2;}
  .tl-item .tl-body,.tl-item.is-reverse .tl-body{grid-column:1;order:1;}
  .reward-layout{grid-template-columns:1fr;}
  .rules-wrap{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:32px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  .section{padding:40px 0;}
  .section-head h2{font-size:23px;line-height:32px;}
  .cat-hero h1{font-size:28px;line-height:36px;}
  .cat-hero .lead{font-size:16px;line-height:28px;}
  .hero-media img{height:260px;}
  .hero-actions .btn{width:100%;}
  .reward-side{grid-template-rows:none;}
  .reward-side .reward-card{grid-template-columns:1fr;}
  .reward-side .reward-card img{height:160px;border-right:0;border-bottom:1px solid var(--line);}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
:root{
  --brand:#2F7DD1;
  --brand-dark:#2668B0;
  --brand-light:#E8F1FB;
  --mint:#17B3A6;
  --mint-light:#E4F7F5;
  --accent:#FF8A3D;
  --accent-light:#FFF1E6;
  --bg:#F6F9FD;
  --surface:#FFFFFF;
  --ink:#132238;
  --text:#5B6B7F;
  --line:#DCE6F2;
  --success:#16A34A;
  --warning:#D97706;
  --danger:#DC2626;
  --radius-btn:12px;
  --radius-card:18px;
  --radius-img:16px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(19,34,56,.04),0 12px 28px rgba(47,125,209,.10);
  --shadow-hover:0 16px 36px rgba(47,125,209,.16);
  --shadow-nav:0 6px 20px rgba(19,34,56,.08);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC","Hiragino Sans GB",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:28px;
  color:var(--ink);
  background:var(--bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:.2px;}
h1{font-size:40px;line-height:48px;}
h2{font-size:28px;line-height:36px;}
h3{font-size:20px;line-height:28px;}
h4{font-size:17px;line-height:26px;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(47,125,209,.45);outline-offset:2px;border-radius:8px;}
.num{font-variant-numeric:tabular-nums;}

/* 布局容器 */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.container-narrow{max-width:960px;}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{margin-bottom:32px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;
  line-height:22px;
  color:var(--brand);
  background:var(--brand-light);
  padding:2px 12px;
  border-radius:var(--radius-pill);
  margin-bottom:12px;
  font-weight:700;
}
.section-head p{color:var(--text);font-size:15px;line-height:26px;margin:10px 0 0;max-width:760px;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  font-size:15px;
  line-height:20px;
  font-weight:700;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,125,209,.24);}
.btn-primary:hover{background:#2769b4;color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:var(--brand-dark);}
.btn-ghost{background:#fff;color:var(--brand);border-color:#BCD5EF;}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.btn-text{background:transparent;color:var(--brand);padding:0 4px;height:auto;}
.btn-text:hover{text-decoration:underline;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}

/* 顶部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow-nav);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand);
  color:#fff;font-size:18px;font-weight:700;
  border-radius:12px;
  box-shadow:0 6px 16px rgba(47,125,209,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;color:var(--ink);letter-spacing:.2px;}
.brand-text em{font-style:normal;font-size:12px;color:var(--text);}
.nav-main{display:flex;align-items:center;gap:4px;flex:1;}
.nav-main a{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  color:#41536B;
  border-radius:10px;
  font-weight:500;
  transition:color .2s ease,background-color .2s ease;
}
.nav-main a:hover{color:var(--brand);background:var(--brand-light);}
.nav-main a.is-active{color:var(--brand);font-weight:700;}
.nav-main a.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:0;
  height:3px;border-radius:3px;
  background:var(--brand);
}
.header-tools{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{display:flex;align-items:center;gap:8px;}
.nav-search input{
  height:44px;
  width:220px;
  padding:0 14px;
  font-size:14px;
  color:var(--ink);
  background:#F7FAFE;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:#93A3B8;}
.nav-search input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,125,209,.16);
  background:#fff;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-btn);cursor:pointer;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:12px 0 20px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:block;
  padding:12px 4px;
  font-size:15px;
  color:#41536B;
  border-bottom:1px solid #EEF4FA;
}
.mobile-panel a.is-active{color:var(--brand);font-weight:700;}
.mobile-panel .mobile-search{display:flex;gap:8px;margin:12px 0 16px;}
.mobile-panel .mobile-search input{
  flex:1;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#F7FAFE;font-size:14px;
}

/* 面包屑 */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;line-height:22px;color:var(--text);
  padding:14px 0;
}
.crumb a{color:var(--text);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#B7C5D6;}
.crumb .current{color:var(--ink);font-weight:500;}

/* 分类 Hero */
.hero-help{
  background:linear-gradient(180deg,#FFFFFF 0%,#F2F8FE 100%);
  border-bottom:1px solid var(--line);
  padding:56px 0 48px;
}
.hero-help-grid{
  display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
}
.hero-help h1{font-size:38px;line-height:48px;margin-bottom:16px;}
.hero-help .lead{
  font-size:16px;line-height:28px;color:var(--text);max-width:620px;margin-bottom:24px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;line-height:22px;font-weight:500;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--brand-light);color:var(--brand-dark);
}
.tag.mint{background:var(--mint-light);color:#0E8C82;}
.tag.accent{background:var(--accent-light);color:#C6601C;}
.hero-stat-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:24px;
}
.hero-stat-card h3{font-size:17px;margin-bottom:16px;}
.stat-row{display:flex;align-items:baseline;gap:10px;margin-bottom:14px;}
.stat-row .stat-num{font-size:30px;line-height:1;font-weight:700;color:var(--brand);}
.stat-row .stat-label{font-size:13px;color:var(--text);}
.mini-bar{height:8px;border-radius:var(--radius-pill);background:#E9F1FA;overflow:hidden;margin-bottom:18px;}
.mini-bar span{display:block;height:100%;border-radius:var(--radius-pill);background:linear-gradient(90deg,#2F7DD1,#17B3A6);}
.stat-list li{
  display:flex;align-items:flex-start;gap:8px;
  font-size:14px;line-height:24px;color:var(--text);padding:6px 0;
}
.stat-list li::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--mint);margin-top:9px;flex-shrink:0;
}

/* 主内容两栏 */
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;
  align-items:start;
}
.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:28px;
  margin-bottom:28px;
}
.panel h2{font-size:22px;line-height:32px;margin-bottom:8px;}
.panel .panel-desc{color:var(--text);font-size:14px;line-height:24px;margin-bottom:20px;}

/* 速查卡片 2 列不对称 */
.quick-grid{
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);
  gap:20px;
}
.quick-card{
  border:1px solid var(--line);
  border-radius:14px;
  background:#FBFDFF;
  padding:20px;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.quick-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);border-color:#C7DCF3;}
.quick-card h3{font-size:17px;line-height:26px;margin-bottom:10px;}
.quick-card p{font-size:14px;line-height:24px;color:var(--text);margin-bottom:12px;}
.quick-card .link{font-size:14px;font-weight:700;color:var(--brand);}
.quick-card .link:hover{text-decoration:underline;}
.quick-card img{width:100%;height:130px;object-fit:cover;margin-bottom:14px;}
.quick-card.tall{grid-row:span 2;display:flex;flex-direction:column;}
.quick-card.tall img{height:180px;}

/* 步骤时间线 */
.steps{position:relative;padding-left:28px;}
.steps::before{
  content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:#E2ECF8;border-radius:2px;
}
.step{position:relative;padding-bottom:22px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:-27px;top:5px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);
}
.step.done::before{border-color:var(--mint);}
.step.wait::before{border-color:#C8D6E6;}
.step h3{font-size:16px;line-height:26px;margin-bottom:6px;}
.step p{font-size:14px;line-height:24px;color:var(--text);margin:0 0 8px;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#BED9F4;box-shadow:0 10px 26px rgba(47,125,209,.12);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 20px;
  transition:background-color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#F6FAFF;}
.faq-item summary:hover h3{color:var(--brand);}
.faq-item summary h3{font-size:16px;line-height:26px;transition:color .2s ease;}
.faq-icon{
  flex-shrink:0;
  width:26px;height:26px;border-radius:50%;
  background:var(--brand-light);
  color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
  transition:transform .25s ease,background-color .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--brand);color:#fff;}
.faq-answer{padding:0 20px 20px;font-size:15px;line-height:27px;color:var(--text);}
.faq-answer strong{color:var(--ink);}

/* 侧栏 */
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:22px;
  position:sticky;
  top:92px;
}
.side-card h3{font-size:16px;line-height:26px;margin-bottom:14px;}
.toc-list a{
  display:flex;align-items:center;gap:8px;
  padding:9px 10px;
  font-size:14px;color:#41536B;
  border-radius:10px;
  transition:background-color .2s ease,color .2s ease;
}
.toc-list a:hover{background:var(--brand-light);color:var(--brand);}
.toc-list a::before{
  content:"";width:6px;height:6px;border-radius:50%;background:#C3D6EA;flex-shrink:0;
}
.toc-list a:hover::before{background:var(--brand);}
.side-note{
  margin-top:18px;
  padding-top:18px;
  border-top:1px dashed var(--line);
  font-size:13px;line-height:23px;color:var(--text);
}

/* 相关分类 */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.related-card{
  display:flex;flex-direction:column;gap:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:22px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.related-card .badge{font-size:12px;line-height:22px;padding:2px 10px;border-radius:var(--radius-pill);background:var(--brand-light);color:var(--brand);width:fit-content;font-weight:700;}
.related-card h3{font-size:17px;line-height:26px;}
.related-card p{font-size:14px;line-height:24px;color:var(--text);margin:0;}

/* CTA 通栏 */
.cta-band{
  background:var(--brand-light);
  border:1px solid #CFE2F6;
  border-radius:var(--radius-card);
  padding:32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.cta-band h2{font-size:24px;line-height:34px;margin-bottom:8px;}
.cta-band p{color:#41536B;font-size:15px;line-height:26px;margin:0;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-shrink:0;}

/* 页脚 */
.site-footer{
  background:#EEF4FA;
  border-top:1px solid var(--line);
  padding:56px 0 24px;
  margin-top:72px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-about{font-size:14px;line-height:24px;color:var(--text);margin:0;max-width:340px;}
.footer-col h4{font-size:15px;line-height:24px;margin-bottom:14px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:var(--text);}
.footer-col ul li a:hover{color:var(--brand);}
.footer-contact li{font-size:14px;line-height:24px;color:var(--text);}
.footer-bottom{
  margin-top:36px;padding-top:18px;
  border-top:1px solid #DDE8F4;
  display:flex;flex-wrap:wrap;gap:10px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text);
}
.footer-bottom a{color:var(--text);}
.footer-bottom a:hover{color:var(--brand);}

/* 滚动淡入 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-visible{opacity:1;transform:none;}

/* 响应式 */
@media screen and (max-width:1023px){
  h1{font-size:32px;line-height:40px;}
  .section{padding:56px 0;}
  .nav-main{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-tools .btn-primary{display:none;}
  .hero-help{padding:40px 0 36px;}
  .hero-help-grid{grid-template-columns:1fr;gap:28px;}
  .hero-help h1{font-size:30px;line-height:40px;}
  .layout{grid-template-columns:1fr;gap:28px;}
  .side-card{position:static;}
  .quick-grid{grid-template-columns:1fr;}
  .quick-card.tall{grid-row:auto;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
}
@media screen and (max-width:639px){
  .container{padding:0 16px;}
  h1{font-size:28px;line-height:36px;}
  h2{font-size:22px;line-height:32px;}
  .section{padding:40px 0;}
  .panel{padding:20px;border-radius:16px;}
  .brand-text em{display:none;}
  .hero-help h1{font-size:26px;line-height:36px;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:24px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  .reveal{opacity:1;transform:none;}
}