/* roulang page: index */
:root{
    --c-primary:#1E4E8C;
    --c-primary-hover:#163C6E;
    --c-primary-active:#102E55;
    --c-primary-050:#EAF1FA;
    --c-primary-020:#D7E5F7;
    --c-secondary:#2E9AA8;
    --c-accent:#D99A3E;
    --c-title:#14243A;
    --c-text:#55637A;
    --c-muted:#8A97AB;
    --c-border:#E1E8F2;
    --c-line:#EDF1F7;
    --c-bg:#F7F9FC;
    --c-bg-alt:#EEF3FA;
    --c-card:#FFFFFF;
    --r-card:16px;
    --r-img:12px;
    --r-btn:10px;
    --r-input:12px;
    --sh-card:0 1px 2px rgba(20,36,58,.04), 0 8px 24px -12px rgba(20,36,58,.12);
    --sh-hover:0 12px 32px -12px rgba(30,78,140,.20);
    --sh-nav:0 1px 0 var(--c-border), 0 6px 18px -14px rgba(20,36,58,.28);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
    font-size:15px;
    line-height:1.8;
    letter-spacing:.01em;
    color:var(--c-text);
    background:var(--c-bg);
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
  input{font:inherit}
  h1,h2,h3,h4{color:var(--c-title);margin:0;line-height:1.3;font-weight:600}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid rgba(46,154,168,.6);outline-offset:2px;border-radius:6px}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:1024px){ .container{padding:0 32px} }

  /* ============ 通用按钮 / 徽章 / 卡片 ============ */
  .btn-primary,.btn-outline{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:12px 24px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;letter-spacing:.02em;
    transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
  }
  .btn-primary{background:var(--c-primary);color:#fff;border:1px solid var(--c-primary)}
  .btn-primary:hover{background:var(--c-primary-hover);border-color:var(--c-primary-hover)}
  .btn-primary:active{background:var(--c-primary-active);transform:translateY(1px)}
  .btn-outline{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary)}
  .btn-outline:hover{background:var(--c-primary-050)}
  .btn-outline:active{background:var(--c-primary-020);transform:translateY(1px)}
  .btn-sm{min-height:38px;padding:8px 18px;font-size:14px;border-radius:var(--r-btn)}
  .text-link{color:var(--c-secondary);font-weight:600;font-size:14px;border-bottom:1px solid rgba(46,154,168,.35);padding-bottom:1px;transition:color .18s ease-out,border-color .18s ease-out}
  .text-link:hover{color:var(--c-primary);border-color:var(--c-primary)}

  .badge{
    display:inline-flex;align-items:center;
    background:var(--c-primary-050);color:var(--c-primary);
    font-size:12px;font-weight:600;line-height:1;padding:6px 10px;border-radius:6px;
  }
  .badge-teal{background:#fff;color:var(--c-secondary);border:1px solid rgba(46,154,168,.45)}

  .card{
    background:var(--c-card);border-radius:var(--r-card);box-shadow:var(--sh-card);
    transition:transform .2s ease-out,box-shadow .2s ease-out;
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}

  .section{padding:56px 0}
  @media (min-width:1024px){ .section{padding:96px 0} }
  .section-alt{background:var(--c-bg-alt)}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
  .section-head h2{font-size:21px}
  @media (min-width:1024px){ .section-head h2{font-size:30px} }
  .section-head .section-sub{font-size:14px;color:var(--c-muted);margin-top:8px;max-width:640px}

  /* ============ 导航 ============ */
  .site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid transparent;transition:box-shadow .2s ease-out,border-color .2s ease-out}
  .site-header.is-stuck{border-bottom-color:var(--c-border);box-shadow:var(--sh-nav)}
  .header-main{display:flex;align-items:center;gap:20px;padding:14px 0}
  .logo{display:inline-flex;align-items:center;gap:9px;flex:0 0 auto}
  .logo-mark{width:14px;height:14px;border-radius:50%;background:var(--c-secondary);position:relative;flex:0 0 auto}
  .logo-mark::after{content:"";position:absolute;top:-4px;right:-6px;width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
  .logo-text{font-size:17px;font-weight:700;color:var(--c-title);letter-spacing:.02em;white-space:nowrap}
  .nav-search{
    display:flex;align-items:center;flex:1 1 auto;max-width:620px;height:46px;
    background:#fff;border:1px solid var(--c-border);border-radius:999px;padding:4px 4px 4px 16px;
    transition:border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(46,154,168,.22)}
  .nav-search svg{flex:0 0 auto;width:17px;height:17px;stroke:#8FA3BC;stroke-width:1.6;fill:none}
  .nav-search input{flex:1 1 auto;min-width:0;border:0;background:transparent;height:100%;font-size:14.5px;color:var(--c-title);outline:none;padding:0 10px}
  .nav-search input::placeholder{color:#9AA7BA}
  .nav-search button{
    flex:0 0 auto;height:38px;padding:0 20px;border-radius:999px;
    background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
    transition:background-color .18s ease-out;
  }
  .nav-search button:hover{background:var(--c-primary-hover)}
  .header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;margin-left:auto}
  .header-link{font-size:14.5px;color:var(--c-text);transition:color .18s ease-out}
  .header-link:hover{color:var(--c-primary)}
  .menu-toggle{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-border);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px}
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--c-title);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
  .menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .nav-tabs{display:flex;gap:28px;overflow-x:auto;scrollbar-width:none;border-top:1px solid var(--c-line);padding:0 0 0}
  .nav-tabs::-webkit-scrollbar{display:none}
  .nav-tab{
    position:relative;flex:0 0 auto;padding:12px 2px;font-size:15px;color:var(--c-text);
    white-space:nowrap;transition:color .18s ease-out;
  }
  .nav-tab::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:transparent;border-radius:2px;transition:background-color .18s ease-out}
  .nav-tab:hover{color:var(--c-primary)}
  .nav-tab.active{color:var(--c-primary);font-weight:500}
  .nav-tab.active::after{background:var(--c-primary)}
  .mobile-search{display:none;margin-bottom:12px}
  .mobile-panel{display:none;border-top:1px solid var(--c-line);padding:16px 0 20px}
  .mobile-panel.open{display:block}
  .mobile-panel ul{display:flex;flex-direction:column;gap:4px}
  .mobile-panel a{display:block;padding:12px 4px;font-size:15px;border-bottom:1px solid var(--c-line)}
  @media (max-width:900px){
    .nav-search,.header-link,.header-actions .btn-outline{display:none}
    .menu-toggle{display:flex}
    .mobile-search{display:flex;max-width:none}
    .header-main{padding:12px 0}
  }
  @media (max-width:520px){
    .logo-text{font-size:15.5px}
  }

  /* ============ Hero ============ */
  .hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,#F2F6FC 100%);padding:48px 0 56px}
  @media (min-width:1024px){ .hero{padding:72px 0 96px} }
  .hero-stars{
    position:absolute;inset:0;pointer-events:none;
    background-image:
      radial-gradient(circle,rgba(30,78,140,.16) 1.2px,transparent 1.5px),
      radial-gradient(circle,rgba(46,154,168,.14) 1px,transparent 1.3px);
    background-size:140px 140px,200px 200px;
    background-position:0 0,60px 80px;
    opacity:.55;
  }
  .hero-inner{position:relative;display:grid;gap:36px;align-items:center}
  @media (min-width:1024px){ .hero-inner{grid-template-columns:7fr 5fr;gap:56px} }
  .hero h1{font-size:28px;margin:18px 0 0;letter-spacing:.005em}
  @media (min-width:1024px){ .hero h1{font-size:42px} }
  .hero-sub{font-size:16px;color:var(--c-text);margin-top:18px;max-width:560px;line-height:1.85}
  @media (min-width:1024px){ .hero-sub{font-size:18px} }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
  .hero-note{font-size:13px;color:var(--c-muted);margin-top:18px}
  .hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;background:var(--c-bg-alt);aspect-ratio:4/3}
  .hero-media img{width:100%;height:100%;object-fit:cover}
  .hero-media::after{content:"";position:absolute;inset:0;background:rgba(30,78,140,.08)}
  .hero-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
  .hero-facts span{font-size:13px;color:var(--c-primary);background:#fff;border:1px solid var(--c-border);border-radius:999px;padding:5px 12px}

  /* ============ 品牌理念 ============ */
  .split{display:grid;gap:32px;align-items:center}
  @media (min-width:1024px){ .split{grid-template-columns:5fr 7fr;gap:56px} }
  .split-media{border-radius:var(--r-card);overflow:hidden;background:var(--c-bg-alt);aspect-ratio:4/3}
  .split-media img{width:100%;height:100%;object-fit:cover}
  .split-body h2{font-size:21px;margin-bottom:18px}
  @media (min-width:1024px){ .split-body h2{font-size:30px} }
  .quote-line{border-left:3px solid var(--c-secondary);padding-left:16px;margin:18px 0}
  .split-body p + p{margin-top:14px}

  /* ============ 精选内容 ============ */
  .featured{display:grid;gap:24px}
  @media (min-width:1024px){ .featured{grid-template-columns:7fr 5fr} }
  .featured-main{overflow:hidden;display:flex;flex-direction:column}
  .featured-main .thumb{aspect-ratio:16/9;background:var(--c-bg-alt)}
  .featured-main .thumb img{width:100%;height:100%;object-fit:cover}
  .featured-main .body{padding:24px}
  .featured-main h3{font-size:19px;margin:14px 0 10px}
  .featured-side{display:grid;gap:24px;align-content:start}
  .mini-card{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:16px;align-items:center}
  .mini-card .thumb{aspect-ratio:3/2;border-radius:var(--r-img);overflow:hidden;background:var(--c-bg-alt)}
  .mini-card .thumb img{width:100%;height:100%;object-fit:cover}
  .mini-card h3{font-size:16.5px;margin-bottom:6px}
  .mini-card p{font-size:13.5px;color:var(--c-muted)}
  .entry-strip{margin-top:32px;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
  .entry-strip ul{display:grid;gap:0}
  @media (min-width:768px){ .entry-strip ul{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .entry-strip ul{grid-template-columns:repeat(4,1fr)} }
  .entry-strip li + li{border-top:1px solid var(--c-line)}
  @media (min-width:768px){
    .entry-strip li{border-left:1px solid var(--c-line)}
    .entry-strip li:nth-child(2n+1){border-left:0}
    .entry-strip li:nth-child(n+3){border-top:1px solid var(--c-line)}
  }
  @media (min-width:1024px){
    .entry-strip li:nth-child(n+3){border-top:0}
    .entry-strip li:nth-child(2n+1){border-left:1px solid var(--c-line)}
    .entry-strip li:first-child{border-left:0}
  }
  .entry-strip a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:20px 4px;font-size:14.5px;color:var(--c-title);transition:color .18s ease-out,padding .18s ease-out}
  .entry-strip a:hover{color:var(--c-primary)}
  .entry-strip .arrow{color:var(--c-secondary);font-weight:700}

  /* ============ CMS 列表 ============ */
  .cms-grid{display:grid;gap:24px}
  @media (min-width:768px){ .cms-grid{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .cms-grid{grid-template-columns:repeat(3,1fr)} }
  .cms-card{display:flex;flex-direction:column;overflow:hidden;background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-card);transition:transform .2s ease-out,box-shadow .2s ease-out}
  .cms-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
  @media (min-width:1024px){ .cms-card-wide{grid-column:span 2} }
  .cms-cover{aspect-ratio:16/9;background:var(--c-bg-alt);overflow:hidden;display:block}
  .cms-cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease-out}
  .cms-card:hover .cms-cover img{transform:scale(1.02)}
  .cms-body{display:flex;flex-direction:column;flex:1 1 auto;padding:20px 22px 22px}
  .cms-title{font-size:17px;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .cms-title a:hover{color:var(--c-primary)}
  .cms-excerpt{font-size:14px;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px}
  .cms-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:13px;color:var(--c-muted)}
  .empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:48px 20px;background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-card);text-align:center}
  .empty-state svg{width:44px;height:44px;stroke:rgba(46,154,168,.5);fill:none;stroke-width:1.4}
  .empty-state p{font-size:15px;color:var(--c-muted)}

  /* ============ 信任背书 ============ */
  .stats{display:grid;gap:20px;grid-template-columns:repeat(2,1fr)}
  @media (min-width:1024px){ .stats{grid-template-columns:repeat(4,1fr);gap:24px} }
  .stat{padding:24px 20px;background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-card)}
  .stat strong{display:block;font-size:28px;font-weight:700;color:var(--c-accent);line-height:1.2}
  .stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--c-muted)}
  .quotes{display:grid;gap:20px;margin-top:24px}
  @media (min-width:1024px){ .quotes{grid-template-columns:repeat(2,1fr);gap:24px} }
  .quote-card{padding:24px;background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-card)}
  .quote-card .mark{font-size:26px;color:var(--c-secondary);line-height:1;font-weight:700}
  .quote-card p{margin:12px 0 16px;font-size:15px}
  .quote-card .who{font-size:13px;color:var(--c-muted)}

  /* ============ FAQ ============ */
  .faq{max-width:800px;margin:0 auto;display:grid;gap:12px}
  .faq-item{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-img);overflow:hidden;transition:border-color .18s ease-out}
  .faq-item.open{border-color:var(--c-primary-020)}
  .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;text-align:left;font-size:15.5px;font-weight:600;color:var(--c-title);min-height:44px}
  .faq-item.open .faq-q{color:var(--c-primary)}
  .faq-icon{flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:1px solid var(--c-secondary);color:var(--c-secondary);display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;transition:transform .2s ease-out}
  .faq-item.open .faq-icon{transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease-out}
  .faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--c-text)}

  /* ============ CTA ============ */
  .cta{background:var(--c-primary-050);border-radius:var(--r-card);padding:32px 24px}
  @media (min-width:1024px){ .cta{padding:48px 56px;display:flex;align-items:center;justify-content:space-between;gap:48px} }
  .cta h2{font-size:21px}
  @media (min-width:1024px){ .cta h2{font-size:26px} }
  .cta p{margin-top:12px;font-size:14.5px;color:var(--c-text);max-width:520px}
  .cta-form{margin-top:24px}
  @media (min-width:1024px){ .cta-form{margin-top:0;flex:0 0 440px} }
  .form-row{display:flex;gap:12px;flex-wrap:wrap}
  .form-row input{flex:1 1 200px;min-height:46px;padding:10px 16px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-input);color:var(--c-title);outline:none;transition:border-color .18s ease-out,box-shadow .18s ease-out}
  .form-row input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(46,154,168,.2)}
  .form-note{margin-top:12px;font-size:12.5px;color:var(--c-muted)}

  /* ============ 页脚 ============ */
  .site-footer{background:#EDF3FA;border-top:1px solid var(--c-border);margin-top:0}
  .footer-grid{display:grid;gap:32px;padding:48px 0 32px}
  @media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:56px 0 40px} }
  .footer-brand p{font-size:13.5px;color:var(--c-text);margin-top:14px;max-width:320px}
  .footer-brand .contact{margin-top:16px;font-size:13.5px;color:var(--c-muted)}
  .footer-col h3{font-size:15px;margin-bottom:14px;color:var(--c-title)}
  .footer-col ul{display:grid;gap:10px}
  .footer-col a{font-size:13.5px;color:var(--c-text);transition:color .18s ease-out}
  .footer-col a:hover{color:var(--c-primary)}
  .footer-bottom{border-top:1px solid var(--c-border);padding:18px 0 24px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:13px;color:var(--c-muted)}
  .footer-bottom a{color:var(--c-muted)}
  .footer-bottom a:hover{color:var(--c-primary)}

  @media (max-width:768px){
    .hero-actions{flex-direction:column;align-items:stretch}
    .hero-actions .btn-primary,.hero-actions .btn-outline{width:100%}
    .mini-card{grid-template-columns:88px 1fr}
    .section-head{margin-bottom:24px}
  }

/* roulang page: article */
:root{
  --c-primary:#1E4E8C;
  --c-primary-dark:#163C6E;
  --c-primary-active:#102E55;
  --c-primary-050:#EAF1FA;
  --c-primary-020:#D7E5F7;
  --c-secondary:#2E9AA8;
  --c-accent:#D99A3E;
  --c-ink:#14243A;
  --c-text:#55637A;
  --c-muted:#8A97AB;
  --c-border:#E1E8F2;
  --c-divider:#EDF1F7;
  --c-bg:#F7F9FC;
  --c-bg-alt:#EEF3FA;
  --c-card:#FFFFFF;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-card:0 1px 2px rgba(20,36,58,.04), 0 8px 24px -12px rgba(20,36,58,.12);
  --sh-hover:0 12px 32px -12px rgba(30,78,140,.20);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.3;letter-spacing:.01em}
p{margin:0}
button{cursor:pointer}
:focus-visible{outline:3px solid rgba(46,154,168,.45);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.site-header.is-stuck{
  border-bottom-color:var(--c-border);
  box-shadow:0 1px 2px rgba(20,36,58,.04),0 8px 24px -18px rgba(20,36,58,.28);
}
.header-top{
  display:flex;align-items:center;flex-wrap:wrap;
  gap:14px 20px;padding:14px 0;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-ink);flex:none}
.logo-mark{
  width:20px;height:20px;border-radius:50%;flex:none;position:relative;
  background:radial-gradient(circle at 32% 30%,var(--c-secondary),var(--c-primary));
  box-shadow:0 0 0 3px rgba(46,154,168,.12);
}
.logo-mark::after{content:"";position:absolute;inset:6px;background:#fff;border-radius:50%;opacity:.9}
.logo-mark::before{content:"";position:absolute;right:-3px;top:-3px;width:6px;height:6px;border-radius:50%;background:var(--c-accent);opacity:.85}
.logo-text{white-space:nowrap}

.nav-search{
  position:relative;display:flex;align-items:center;
  flex:1 1 520px;min-width:260px;max-width:660px;
  height:48px;background:#fff;border:1px solid var(--c-border);
  border-radius:999px;padding-left:44px;padding-right:5px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(46,154,168,.25)}
.nav-search .search-icon{position:absolute;left:16px;width:18px;height:18px;color:#8A97AB}
.nav-search input{
  flex:1;min-width:0;height:46px;border:0;background:transparent;outline:none;
  font-size:15px;color:var(--c-ink);
}
.nav-search input::placeholder{color:var(--c-muted)}
.nav-search button{
  height:40px;padding:0 20px;border:0;border-radius:999px;
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  transition:background .18s ease-out,transform .18s ease-out;
}
.nav-search button:hover{background:var(--c-primary-dark)}
.nav-search button:active{transform:translateY(1px)}

.header-actions{display:flex;align-items:center;gap:14px;flex:none;margin-left:auto}
.text-link{font-size:14px;color:var(--c-text);padding:6px 2px;border-bottom:1px solid transparent;transition:color .18s,border-color .18s}
.text-link:hover{color:var(--c-secondary);border-bottom-color:rgba(46,154,168,.5)}
.menu-toggle{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 14px;
  border:1px solid var(--c-border);border-radius:var(--r-btn);background:#fff;
  font-size:14px;color:var(--c-ink);
}
.menu-toggle:hover{background:var(--c-primary-050)}
@media (min-width:1024px){.menu-toggle{display:none}}

.nav-tabs{
  display:flex;gap:28px;overflow-x:auto;scrollbar-width:none;
  border-top:1px solid var(--c-divider);
}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-tab{
  padding:13px 0 11px;font-size:15px;color:var(--c-text);white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:color .18s ease-out,border-color .18s ease-out;
}
.nav-tab:hover{color:var(--c-primary)}
.nav-tab.active{color:var(--c-primary);font-weight:500;border-bottom-color:var(--c-primary)}

.mobile-panel{
  border-top:1px solid var(--c-divider);
  background:#fff;padding:16px 0 20px;
}
.mobile-panel .nav-tabs{border-top:0;gap:20px;flex-wrap:wrap}
.mobile-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:16px}

/* ---------- 通用组件 ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:12px 24px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-weight:600;font-size:15px;
  border:1px solid var(--c-primary);
  transition:background .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.btn-primary:hover{background:var(--c-primary-dark);box-shadow:var(--sh-hover)}
.btn-primary:active{background:var(--c-primary-active);transform:translateY(1px)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:12px 24px;border-radius:var(--r-btn);
  background:#fff;color:var(--c-primary);font-weight:600;font-size:15px;
  border:1px solid var(--c-primary);
  transition:background .18s ease-out,transform .18s ease-out;
}
.btn-outline:hover{background:var(--c-primary-050)}
.btn-outline:active{transform:translateY(1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-secondary);
  border-bottom:1px solid rgba(46,154,168,.45);padding-bottom:2px;
  transition:color .18s,border-color .18s;
}
.btn-text:hover{color:var(--c-primary);border-bottom-color:rgba(30,78,140,.5)}

.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;
  background:var(--c-primary-050);color:var(--c-primary);
}
.badge-teal{background:#E7F5F7;color:#1F7480;border:1px solid rgba(46,154,168,.35)}

/* ---------- 面包屑 ---------- */
.breadcrumb-wrap{padding-top:22px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted)}
.breadcrumb a{color:var(--c-muted);transition:color .18s}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C6D2E2}
.breadcrumb .current{color:var(--c-primary);font-weight:600}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:32px;padding-top:20px;
}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:48px;padding-top:26px}
}
.article-main{min-width:0;max-width:760px}
.article-head{padding-bottom:4px}
.article-head h1{
  font-size:28px;margin:14px 0 0;line-height:1.32;
}
@media (min-width:768px){.article-head h1{font-size:34px}}
@media (min-width:1024px){.article-head h1{font-size:36px}}
.meta-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-top:14px;font-size:13px;color:var(--c-muted);
}
.meta-line .dot{color:#C6D2E2}
.article-cover{margin:24px 0 0}
.article-cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-img);background:var(--c-bg-alt);
}

.prose-cn{margin-top:28px;font-size:16.5px;line-height:1.9;color:var(--c-text)}
.prose-cn p{margin:0 0 1.3em}
.prose-cn h2{
  position:relative;font-size:22px;font-weight:700;color:var(--c-ink);
  margin:36px 0 16px;padding-left:14px;line-height:1.4;
}
.prose-cn h2::before{content:"";position:absolute;left:0;top:.3em;width:4px;height:18px;border-radius:2px;background:var(--c-primary)}
.prose-cn h3{
  position:relative;font-size:18px;font-weight:600;color:var(--c-ink);
  margin:28px 0 12px;padding-left:16px;line-height:1.45;
}
.prose-cn h3::before{content:"";position:absolute;left:0;top:.45em;width:8px;height:8px;border-radius:2px;background:var(--c-secondary)}
.prose-cn ul,.prose-cn ol{padding-left:24px;margin:0 0 1.3em}
.prose-cn li{margin-bottom:.5em}
.prose-cn ul li::marker{color:var(--c-secondary)}
.prose-cn ol li::marker{color:var(--c-primary);font-weight:600}
.prose-cn blockquote{
  margin:0 0 1.4em;padding:14px 18px;border-left:4px solid var(--c-primary);
  background:var(--c-primary-050);border-radius:14px;color:#3B4A61;
}
.prose-cn blockquote p:last-child{margin-bottom:0}
.prose-cn a{color:var(--c-primary);border-bottom:1px solid rgba(30,78,140,.3)}
.prose-cn a:hover{color:var(--c-primary-dark);border-bottom-color:var(--c-primary)}
.prose-cn code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;background:var(--c-bg);border:1px solid var(--c-border);
  border-radius:8px;padding:2px 6px;
}
.prose-cn pre{
  background:var(--c-bg);border:1px solid var(--c-border);border-radius:12px;
  padding:16px;overflow:auto;margin:0 0 1.4em;
}
.prose-cn pre code{background:none;border:0;padding:0}
.prose-cn img{border-radius:var(--r-img);margin:0 0 10px;background:var(--c-bg-alt)}
.prose-cn figure{margin:0 0 1.4em}
.prose-cn figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:8px}
.prose-cn table{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 1.4em}
.prose-cn thead th{
  text-align:left;padding:10px 12px;font-weight:600;color:var(--c-ink);
  border-bottom:2px solid var(--c-primary);
}
.prose-cn tbody td{padding:10px 12px;border-bottom:1px solid var(--c-divider)}
.prose-cn tbody tr:nth-child(even){background:#FBFCFE}

.empty-state{
  margin-top:28px;padding:48px 24px;text-align:center;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-card);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:50%;
  border:2px solid rgba(46,154,168,.3);position:relative;
}
.empty-state .empty-icon::after{
  content:"";position:absolute;top:50%;left:50%;width:14px;height:14px;
  transform:translate(-50%,-50%) rotate(45deg);border-radius:2px;
  background:rgba(46,154,168,.3);
}
.empty-state p{font-size:15px;color:var(--c-muted);margin-bottom:14px}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;align-items:center}
.tag-row .tag-label{font-size:13px;color:var(--c-muted);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  font-size:13px;color:var(--c-primary);background:var(--c-primary-050);
  border:1px solid var(--c-primary-020);transition:background .18s,color .18s;
}
.tag:hover{background:var(--c-primary-020)}

.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  margin-top:26px;padding-top:20px;border-top:1px solid var(--c-divider);
}
.share-row{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--c-muted)}
.share-row a{color:var(--c-text);transition:color .18s}
.share-row a:hover{color:var(--c-secondary)}

/* ---------- 侧栏 ---------- */
.article-side{display:grid;gap:20px;align-content:start}
.side-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-card);
}
.side-card h3{font-size:15px;margin-bottom:14px;padding-left:12px;position:relative}
.side-card h3::before{
  content:"";position:absolute;left:0;top:.42em;width:3px;height:14px;
  border-radius:2px;background:var(--c-secondary);
}
.side-list{list-style:none;display:grid;gap:12px}
.side-list a{
  display:block;font-size:14px;color:var(--c-text);line-height:1.7;
  padding-left:12px;border-left:2px solid transparent;
  transition:color .18s,border-color .18s;
}
.side-list a:hover{color:var(--c-primary);border-left-color:var(--c-primary)}
.side-list .side-meta{display:block;font-size:12px;color:var(--c-muted);margin-top:2px}
.side-note{font-size:13px;color:var(--c-muted);line-height:1.8;margin-top:12px}

/* ---------- 相关推荐 ---------- */
.section{margin-top:72px}
@media (min-width:1024px){.section{margin-top:96px}}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:12px;margin-bottom:26px;
}
.section-head h2{font-size:21px}
@media (min-width:1024px){.section-head h2{font-size:24px}}
.section-head p{font-size:14px;color:var(--c-muted);margin-top:8px}

.card-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.card{
  display:flex;flex-direction:column;background:#fff;
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.card-media{aspect-ratio:16/9;background:var(--c-bg-alt);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--c-text);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-divider);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-muted);
}
.card-foot a{color:var(--c-primary);font-weight:600}
.card-foot a:hover{color:var(--c-primary-dark)}

/* ---------- 上下篇 ---------- */
.pager{
  display:grid;gap:16px;grid-template-columns:1fr;margin-top:32px;
}
@media (min-width:768px){.pager{grid-template-columns:repeat(2,minmax(0,1fr))}}
.pager a{
  display:block;padding:18px 20px;background:#fff;
  border:1px solid var(--c-border);border-radius:var(--r-card);
  transition:background .18s,border-color .18s,transform .18s;
}
.pager a:hover{background:var(--c-primary-050);border-color:var(--c-primary-020);transform:translateY(-2px)}
.pager .pager-label{display:block;font-size:12px;color:var(--c-muted);margin-bottom:6px}
.pager .pager-title{font-size:15px;font-weight:600;color:var(--c-ink);line-height:1.6}
.pager .align-right{text-align:right}

/* ---------- CTA ---------- */
.cta{
  margin-top:72px;background:var(--c-primary-050);border-radius:var(--r-card);
  padding:40px 24px;
  display:grid;gap:24px;grid-template-columns:1fr;
}
@media (min-width:768px){
  .cta{grid-template-columns:1.1fr .9fr;align-items:center;padding:48px 40px;gap:40px}
}
.cta h2{font-size:21px;margin-bottom:10px}
@media (min-width:1024px){.cta h2{font-size:24px}}
.cta p{font-size:14px;color:var(--c-text);line-height:1.8}
.cta-form{display:flex;flex-wrap:wrap;gap:12px}
.cta-form input{
  flex:1 1 220px;min-width:0;height:46px;padding:0 16px;
  border:1px solid var(--c-border);border-radius:12px;background:#fff;
  outline:none;font-size:15px;transition:border-color .18s,box-shadow .18s;
}
.cta-form input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(46,154,168,.22)}
.cta-form button{
  flex:0 0 auto;min-height:46px;padding:0 24px;border:0;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-weight:600;font-size:15px;
  transition:background .18s ease-out,transform .18s ease-out;
}
.cta-form button:hover{background:var(--c-primary-dark)}
.cta-form button:active{transform:translateY(1px)}
.cta-hint{margin-top:12px;font-size:12.5px;color:var(--c-muted)}
@media (max-width:767px){
  .cta-form input,.cta-form button{flex:1 1 100%;width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:80px;background:#EDF3FA;border-top:1px solid var(--c-border);
  padding:52px 0 0;
}
@media (min-width:1024px){.site-footer{margin-top:104px;padding-top:64px}}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px}}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--c-text);margin-top:14px;max-width:340px}
.footer-brand .contact{color:var(--c-muted);font-size:13px}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--c-text);transition:color .18s}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:40px;padding:18px 0;border-top:1px solid #DCE6F3;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:8px 24px;font-size:13px;color:var(--c-muted);
}
@media (max-width:640px){
  .header-actions{margin-left:auto}
  .nav-search{flex:1 1 100%;max-width:none;order:3}
  .header-top{padding-bottom:6px}
  .article-head h1{font-size:26px}
  .section{margin-top:56px}
}

/* roulang page: category1 */
:root{
    --c-primary:#1E4E8C;
    --c-primary-hover:#163C6E;
    --c-primary-active:#102E55;
    --c-primary-050:#EAF1FA;
    --c-primary-100:#D7E5F7;
    --c-secondary:#2E9AA8;
    --c-accent:#D99A3E;
    --c-ink:#14243A;
    --c-body:#55637A;
    --c-muted:#8A97AB;
    --c-border:#E1E8F2;
    --c-line:#EDF1F7;
    --c-bg:#F7F9FC;
    --c-alt:#EEF3FA;
    --c-card:#FFFFFF;
    --r-card:16px;
    --r-img:12px;
    --r-btn:10px;
    --r-input:12px;
    --shadow-card:0 1px 2px rgba(20,36,58,.04),0 8px 24px -12px rgba(20,36,58,.12);
    --shadow-hover:0 12px 32px -12px rgba(30,78,140,.20);
    --fast:180ms ease-out;
    --sec-gap:56px;
  }
  @media (min-width:1024px){ :root{ --sec-gap:104px; } }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; }
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    letter-spacing:.01em;
    color:var(--c-body);
    background:var(--c-bg);
    -webkit-font-smoothing:antialiased;
  }
  img{ display:block; max-width:100%; height:auto; }
  a{ color:inherit; text-decoration:none; transition:color var(--fast), border-color var(--fast), background-color var(--fast); }
  button,input{ font:inherit; }
  h1,h2,h3{ color:var(--c-ink); line-height:1.3; margin:0; font-weight:600; }
  p{ margin:0; }
  ul{ margin:0; padding:0; }
  .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; }
  :focus-visible{ outline:2px solid rgba(46,154,168,.6); outline-offset:2px; border-radius:6px; }

  .container{ width:100%; max-width:1200px; margin:0 auto; padding:0 20px; }
  @media (min-width:1024px){ .container{ padding:0 32px; } }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    padding:12px 24px; min-height:44px;
    border-radius:var(--r-btn); border:1px solid transparent;
    font-size:15px; font-weight:600; cursor:pointer; white-space:nowrap;
    transition:background-color var(--fast), color var(--fast), border-color var(--fast), box-shadow var(--fast), transform var(--fast);
  }
  .btn:active{ transform:translateY(1px); }
  .btn-primary{ background:var(--c-primary); color:#fff; }
  .btn-primary:hover{ background:var(--c-primary-hover); }
  .btn-ghost{ background:#fff; color:var(--c-primary); border-color:var(--c-primary); }
  .btn-ghost:hover{ background:var(--c-primary-050); }
  .btn-sm{ padding:8px 16px; min-height:40px; font-size:14px; }
  .text-link{
    display:inline-flex; align-items:center; gap:6px;
    color:var(--c-secondary); font-weight:600; font-size:14.5px;
    border-bottom:1px solid transparent;
  }
  .text-link:hover{ border-bottom-color:var(--c-secondary); }
  .text-link::after{ content:"→"; font-weight:500; }

  /* ---------- 徽章 ---------- */
  .badge{
    display:inline-block; padding:3px 10px; border-radius:6px;
    background:var(--c-primary-050); color:var(--c-primary);
    font-size:12px; font-weight:600; line-height:1.6;
  }
  .badge-cyan{ background:#fff; border:1px solid var(--c-secondary); color:var(--c-secondary); }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky; top:0; z-index:60;
    background:rgba(255,255,255,.95);
    border-bottom:1px solid transparent;
    transition:border-color .2s ease-out, box-shadow .2s ease-out;
  }
  .site-header.is-stuck{ border-bottom-color:var(--c-border); box-shadow:0 6px 20px -16px rgba(20,36,58,.4); }
  .header-top{ display:flex; align-items:center; gap:20px; padding:14px 0; flex-wrap:wrap; }
  .logo{ display:inline-flex; align-items:center; gap:10px; font-size:18px; font-weight:700; color:var(--c-ink); }
  .logo-mark{
    position:relative; width:14px; height:14px; border-radius:50%;
    background:var(--c-primary); box-shadow:0 0 0 4px var(--c-primary-050); flex:0 0 auto;
  }
  .logo-mark::after{ content:""; position:absolute; inset:4px; border-radius:50%; background:#fff; }
  .logo:hover .logo-text{ color:var(--c-primary); }

  .nav-search{
    flex:1 1 auto; max-width:640px; min-width:0;
    display:flex; align-items:center; gap:6px;
    background:#fff; border:1px solid var(--c-border); border-radius:999px;
    padding:4px 4px 4px 16px;
    transition:border-color var(--fast), box-shadow var(--fast);
  }
  .nav-search:focus-within{ border-color:var(--c-primary); box-shadow:0 0 0 3px rgba(46,154,168,.25); }
  .nav-search svg{ width:18px; height:18px; color:#8A97AB; flex:0 0 auto; }
  .nav-search input{
    flex:1 1 auto; min-width:0; border:0; background:transparent; outline:none;
    padding:8px 10px; font-size:14.5px; color:var(--c-ink); min-height:38px;
  }
  .nav-search input::placeholder{ color:#A6B1C2; }
  .search-btn{
    border:0; cursor:pointer; background:var(--c-primary); color:#fff;
    border-radius:999px; padding:0 20px; min-height:38px; font-size:14px; font-weight:600;
    transition:background-color var(--fast);
  }
  .search-btn:hover{ background:var(--c-primary-hover); }

  .header-actions{ margin-left:auto; display:flex; align-items:center; gap:14px; }
  .header-link{ font-size:14.5px; color:var(--c-body); }
  .header-link:hover{ color:var(--c-primary); }
  .nav-toggle{
    display:none; width:44px; height:44px; border:1px solid var(--c-border); 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(--c-ink); border-radius:2px; }

  .nav-tabs{
    display:flex; gap:22px; overflow-x:auto; padding:2px 0 10px;
    border-top:1px solid var(--c-line);
    scrollbar-width:none;
  }
  .nav-tabs::-webkit-scrollbar{ display:none; }
  .nav-tab{
    flex:0 0 auto; padding:8px 2px 10px; font-size:14.5px; color:var(--c-body);
    border-bottom:2px solid transparent;
  }
  .nav-tab:hover{ color:var(--c-primary); }
  .nav-tab.active{ color:var(--c-primary); font-weight:600; border-bottom-color:var(--c-primary); }

  .mobile-menu{
    border:1px solid var(--c-border); border-radius:12px; background:#fff;
    padding:18px; margin-bottom:14px; box-shadow:var(--shadow-card);
  }
  .mobile-menu[hidden]{ display:none; }
  .mobile-menu-title{ font-size:13px; color:var(--c-muted); margin-bottom:10px; }
  .mobile-menu-links{ display:grid; gap:6px; margin-bottom:16px; }
  .mobile-menu-links a{ display:block; padding:11px 12px; border-radius:10px; font-size:15px; color:var(--c-body); }
  .mobile-menu-links a:hover{ background:var(--c-primary-050); color:var(--c-primary); }
  .mobile-menu-links a.is-active{ background:var(--c-primary-050); color:var(--c-primary); font-weight:600; }

  @media (min-width:1024px){ .nav-search{ min-width:480px; } }
  @media (max-width:1023px){
    .nav-search{ order:3; flex:1 0 100%; max-width:none; padding-left:14px; }
    .nav-toggle{ display:inline-flex; }
    .header-actions{ gap:10px; }
    .header-link{ display:none; }
  }

  /* ---------- 页面头部 ---------- */
  .page-head{ padding:32px 0 8px; background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%); }
  .breadcrumb{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:var(--c-muted); margin-bottom:22px; }
  .breadcrumb a{ color:var(--c-muted); }
  .breadcrumb a:hover{ color:var(--c-primary); }
  .breadcrumb .sep{ color:#C9D4E3; }
  .breadcrumb .current{ color:var(--c-primary); font-weight:600; }
  .page-head h1{ font-size:28px; margin:14px 0 16px; max-width:920px; font-weight:700; }
  .page-lead{ font-size:16px; line-height:1.9; max-width:820px; }
  @media (min-width:1024px){
    .page-head{ padding:48px 0 12px; }
    .page-head h1{ font-size:42px; }
  }

  /* ---------- 区块通用 ---------- */
  .section{ padding-top:var(--sec-gap); }
  .section-alt{ background:var(--c-alt); padding-bottom:var(--sec-gap); }
  .section-head{ margin-bottom:28px; }
  .section-head h2{ font-size:21px; margin-bottom:10px; }
  .section-head p{ font-size:15px; color:var(--c-muted); max-width:760px; }
  @media (min-width:1024px){ .section-head h2{ font-size:30px; } }

  /* ---------- 指引主体 ---------- */
  .guide-grid{ display:grid; gap:24px; }
  @media (min-width:1024px){ .guide-grid{ grid-template-columns:240px 1fr; gap:32px; } }

  .anchor-panel{
    background:var(--c-card); border-radius:var(--r-card); box-shadow:var(--shadow-card);
    padding:22px 18px; height:100%;
  }
  .anchor-title{ font-size:13px; color:var(--c-muted); margin-bottom:12px; letter-spacing:.06em; }
  .anchor-list{ list-style:none; display:grid; gap:2px; }
  .anchor-link{
    display:block; padding:9px 12px; font-size:14.5px; color:var(--c-body);
    border-left:2px solid transparent; border-radius:0 8px 8px 0;
  }
  .anchor-link:hover{ background:var(--c-primary-050); color:var(--c-primary); }
  .anchor-link.is-active{ border-left-color:var(--c-primary); background:var(--c-primary-050); color:var(--c-primary); font-weight:600; }
  .anchor-note{ margin-top:16px; padding-top:16px; border-top:1px solid var(--c-line); font-size:13px; color:var(--c-muted); line-height:1.75; }
  @media (min-width:1024px){ .anchor-panel{ position:sticky; top:112px; } }

  .card-grid{ display:grid; gap:24px; }
  @media (min-width:768px){ .card-grid{ grid-template-columns:repeat(2,1fr); } }

  .card{
    display:flex; flex-direction:column; overflow:hidden;
    background:var(--c-card); border-radius:var(--r-card); box-shadow:var(--shadow-card);
    transition:transform var(--fast), box-shadow var(--fast);
  }
  .card:hover{ transform:translateY(-2px); box-shadow:var(--shadow-hover); }
  .card-media{ aspect-ratio:16/9; background:var(--c-alt); overflow:hidden; }
  .card-media img{ width:100%; height:100%; object-fit:cover; transition:transform 220ms ease-out; }
  .card:hover .card-media img{ transform:scale(1.03); }
  .card-body{ padding:20px 22px 24px; display:flex; flex-direction:column; gap:12px; flex:1 1 auto; }
  .card-title{ font-size:17px; }
  .card-text{ font-size:15px; line-height:1.82; color:var(--c-body); }
  .card-body .text-link{ margin-top:auto; }
  @media (min-width:1024px){ .card-title{ font-size:19px; } }

  /* ---------- 关键信息条 ---------- */
  .info-strip{
    display:grid; background:var(--c-primary-050); border-radius:var(--r-card); overflow:hidden;
  }
  @media (min-width:768px){ .info-strip{ grid-template-columns:repeat(3,1fr); } }
  .info-item{ padding:26px 24px 30px; border-top:1px solid rgba(30,78,140,.14); }
  .info-item:first-child{ border-top:0; }
  @media (min-width:768px){
    .info-item{ border-top:0; border-left:1px solid rgba(30,78,140,.14); }
    .info-item:first-child{ border-left:0; }
  }
  .info-num{ display:block; font-size:20px; font-weight:700; color:var(--c-accent); letter-spacing:.06em; margin-bottom:10px; }
  .info-item h3{ font-size:17px; margin-bottom:8px; }
  .info-item p{ font-size:14.5px; line-height:1.8; color:var(--c-body); }

  /* ---------- FAQ ---------- */
  .faq-wrap{ max-width:800px; }
  .faq-item{
    background:#fff; border:1px solid var(--c-border); border-radius:12px;
    margin-bottom:12px; overflow:hidden; transition:border-color var(--fast);
  }
  .faq-item summary{
    list-style:none; cursor:pointer;
    display:flex; align-items:center; justify-content:space-between; gap:16px;
    padding:18px 20px; font-size:16px; font-weight:600; color:var(--c-ink); line-height:1.55;
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary:hover{ color:var(--c-primary); }
  .faq-icon{
    position:relative; width:22px; height:22px; flex:0 0 auto;
    border:1px solid var(--c-secondary); border-radius:50%;
  }
  .faq-icon::before,.faq-icon::after{
    content:""; position:absolute; left:50%; top:50%;
    background:var(--c-secondary); transform:translate(-50%,-50%);
  }
  .faq-icon::before{ width:10px; height:1.5px; }
  .faq-icon::after{ width:1.5px; height:10px; transition:transform var(--fast), opacity var(--fast); }
  .faq-item[open] .faq-icon::after{ transform:translate(-50%,-50%) scaleY(0); opacity:0; }
  .faq-item[open]{ border-color:var(--c-primary-100); }
  .faq-item[open] summary{ color:var(--c-primary); }
  .faq-a{ padding:0 20px 20px; font-size:15.5px; line-height:1.85; color:var(--c-body); }

  /* ---------- CTA ---------- */
  .cta-card{
    background:var(--c-primary-050); border-radius:var(--r-card);
    padding:32px 24px; display:grid; gap:22px;
  }
  .cta-card h2{ font-size:21px; margin-bottom:10px; }
  .cta-card .cta-desc{ font-size:15px; color:var(--c-body); max-width:460px; }
  .cta-form{ display:flex; flex-wrap:wrap; gap:12px; }
  .cta-form input{
    flex:1 1 240px; min-width:0; min-height:48px;
    border:1px solid var(--c-border); border-radius:var(--r-input);
    background:#fff; padding:0 16px; font-size:15px; color:var(--c-ink); outline:none;
    transition:border-color var(--fast), box-shadow var(--fast);
  }
  .cta-form input::placeholder{ color:#A6B1C2; }
  .cta-form input:focus{ border-color:var(--c-primary); box-shadow:0 0 0 3px rgba(46,154,168,.22); }
  .cta-form .btn{ flex:0 0 auto; }
  .form-note{ font-size:13px; color:var(--c-muted); margin-top:12px; }
  @media (min-width:1024px){
    .cta-card{ grid-template-columns:1fr 1fr; align-items:center; padding:52px 48px; gap:40px; }
    .cta-card h2{ font-size:26px; }
  }
  @media (max-width:520px){
    .cta-form{ flex-direction:column; }
    .cta-form .btn{ width:100%; }
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:var(--sec-gap); background:#EDF3FA; border-top:1px solid var(--c-border);
    padding-top:52px;
  }
  .footer-grid{ display:grid; gap:32px; }
  @media (min-width:768px){ .footer-grid{ grid-template-columns:repeat(2,1fr); } }
  @media (min-width:1024px){ .footer-grid{ grid-template-columns:1.6fr 1fr 1fr 1fr; gap:40px; } }
  .footer-brand p{ margin-top:14px; font-size:14px; line-height:1.8; max-width:340px; }
  .footer-brand .contact{ color:var(--c-muted); font-size:13.5px; }
  .footer-col h3{ font-size:15px; margin-bottom:14px; }
  .footer-col ul{ list-style:none; display:grid; gap:10px; }
  .footer-col a{ font-size:14px; color:var(--c-body); }
  .footer-col a:hover{ color:var(--c-primary); }
  .footer-bottom{
    margin-top:40px; padding:18px 0 24px; border-top:1px solid var(--c-border);
    display:flex; flex-wrap:wrap; justify-content:space-between; gap:10px;
    font-size:13px; color:var(--c-muted);
  }

/* roulang page: category2 */
:root{
  --c-primary:#1E4E8C;
  --c-primary-hover:#163C6E;
  --c-primary-active:#102E55;
  --c-primary-050:#EAF1FA;
  --c-primary-20:#D7E5F7;
  --c-secondary:#2E9AA8;
  --c-accent:#D99A3E;
  --c-title:#14243A;
  --c-text:#55637A;
  --c-muted:#8A97AB;
  --c-border:#E1E8F2;
  --c-divider:#EDF1F7;
  --c-bg:#F7F9FC;
  --c-bg-alt:#EEF3FA;
  --c-card:#FFFFFF;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:12px;
  --sh-card:0 1px 2px rgba(20,36,58,.04), 0 8px 24px -12px rgba(20,36,58,.12);
  --sh-hover:0 12px 32px -12px rgba(30,78,140,.20);
  --stick-top:118px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-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-cn);
  font-size:16.5px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none}
p{margin:0 0 1.15em}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--c-title);font-weight:600;line-height:1.3;letter-spacing:.01em}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid rgba(46,154,168,.6);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){ .container{padding:0 32px} }

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-stuck{border-bottom-color:var(--c-border);box-shadow:0 8px 22px -20px rgba(20,36,58,.5)}
.nav-top{display:flex;align-items:center;gap:18px;padding:14px 0}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;color:var(--c-title);font-weight:700;font-size:17px;letter-spacing:.02em}
.logo-mark{width:14px;height:14px;border-radius:50%;background:radial-gradient(circle at 32% 32%, #fff 0 18%, var(--c-secondary) 20% 100%);box-shadow:0 0 0 4px rgba(46,154,168,.14);flex:none}
.logo-text{white-space:nowrap}
.nav-search{
  position:relative;display:flex;align-items:center;flex:1 1 auto;max-width:640px;height:46px;
  background:#fff;border:1px solid var(--c-border);border-radius:999px;padding:0 5px 0 15px;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(46,154,168,.20)}
.search-icon{width:18px;height:18px;flex:none;color:var(--c-muted);margin-right:9px}
.search-input{flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;outline:none;font-size:15px;color:var(--c-title)}
.search-input::placeholder{color:var(--c-muted)}
.search-btn{
  flex:none;height:36px;padding:0 20px;border:0;border-radius:999px;
  background:var(--c-primary);color:#fff;font-weight:600;font-size:14px;cursor:pointer;
  transition:background .18s ease, transform .18s ease;
}
.search-btn:hover{background:var(--c-primary-hover)}
.search-btn:active{transform:translateY(1px)}
.nav-search--mobile{display:none;max-width:none;width:100%;margin-bottom:12px}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none;margin-left:auto}
.nav-link{font-size:15px;color:var(--c-text);padding:6px 2px;transition:color .18s ease}
.nav-link:hover{color:var(--c-primary)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-border);border-radius:12px;
  background:#fff;color:var(--c-title);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-tabs{display:flex;align-items:center;gap:26px;overflow-x:auto;padding:0 0 12px;scrollbar-width:none}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-tab{
  position:relative;flex:none;font-size:15px;color:var(--c-text);padding:4px 0 8px;
  transition:color .18s ease;
}
.nav-tab::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:transparent;border-radius:2px;transition:background .18s ease}
.nav-tab:hover{color:var(--c-primary)}
.nav-tab.active{color:var(--c-primary);font-weight:500}
.nav-tab.active::after{background:var(--c-primary)}
.mobile-panel{display:none;border-top:1px solid var(--c-divider);padding:14px 0 18px}
.mobile-panel.open{display:block}
.mobile-panel .panel-label{font-size:13px;color:var(--c-muted);margin:0 0 8px}
.mobile-panel ul{display:grid;gap:8px;margin-bottom:16px}
.mobile-panel a.panel-link{display:block;padding:12px 14px;border:1px solid var(--c-border);border-radius:12px;background:#fff;color:var(--c-title);font-size:15px}
.mobile-panel a.panel-link.active{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-050)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  min-height:44px;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);box-shadow:var(--sh-hover)}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary-20)}
.btn-outline:hover{background:var(--c-primary-050);border-color:var(--c-primary)}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:8px 16px;font-size:14px;min-height:38px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--c-secondary);border-bottom:1px solid rgba(46,154,168,.35);padding-bottom:2px;transition:color .18s ease,border-color .18s ease}
.text-link:hover{color:var(--c-primary);border-color:var(--c-primary)}
.text-link::after{content:"→";font-size:14px}

/* ============ 面包屑 ============ */
.crumb{padding:14px 0 2px;font-size:13px;color:var(--c-muted)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li::after{content:"/";margin-left:8px;color:#C6D0DE}
.crumb li:last-child::after{content:"";margin:0}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb .current{color:var(--c-primary);font-weight:600}

/* ============ 顶部品牌带 ============ */
.page-hero{position:relative;overflow:hidden;padding:64px 0 52px;background:var(--c-bg-alt)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.5;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg, rgba(255,255,255,.94) 0%, rgba(255,255,255,.86) 42%, rgba(234,241,250,.82) 100%);
}
.page-hero .container{position:relative;z-index:2}
.page-hero-inner{max-width:820px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin:0 0 16px;
  font-size:13px;letter-spacing:.06em;color:var(--c-secondary);
  background:rgba(46,154,168,.10);border:1px solid rgba(46,154,168,.28);
  border-radius:6px;padding:5px 12px;
}
.page-hero h1{
  font-size:clamp(26px,4.2vw,40px);font-weight:700;line-height:1.28;color:var(--c-title);
  margin:0 0 16px;max-width:760px;
}
.page-hero .lede{font-size:17px;line-height:1.85;color:#4C5B72;max-width:720px;margin:0 0 22px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:var(--c-muted)}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-secondary);opacity:.75}

/* ============ 锚点条 ============ */
.anchor-bar{
  position:sticky;top:var(--stick-top);z-index:40;
  background:rgba(247,249,252,.97);border-bottom:1px solid var(--c-divider);
  padding:12px 0;
}
.anchor-bar ul{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none}
.anchor-bar ul::-webkit-scrollbar{display:none}
.anchor-bar a{
  flex:none;display:inline-block;padding:8px 16px;border-radius:999px;
  border:1px solid var(--c-border);background:#fff;font-size:14px;color:var(--c-text);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.anchor-bar a:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-050)}

/* ============ 通用板块 ============ */
.section{padding:64px 0}
@media (min-width:1024px){ .section{padding:96px 0} }
.section--alt{background:var(--c-bg-alt)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(21px,3vw,30px);margin:0 0 12px}
.section-sub{font-size:16px;color:var(--c-text);margin:0}

/* ============ 编号序列 ============ */
.seq-list{display:grid;gap:28px}
.seq-item{
  display:grid;grid-template-columns:88px 1fr;gap:20px;align-items:start;
  background:var(--c-card);border-radius:var(--r-card);box-shadow:var(--sh-card);
  padding:28px;transition:transform .2s ease,box-shadow .2s ease;
}
.seq-item:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.seq-num{
  font-size:40px;font-weight:700;line-height:1;color:var(--c-secondary);
  letter-spacing:.01em;padding-top:4px;
}
.seq-body{display:grid;grid-template-columns:300px 1fr;gap:24px;align-items:start}
.seq-media{
  border-radius:var(--r-img);overflow:hidden;background:var(--c-bg-alt);
  aspect-ratio:3/2;
}
.seq-media img{width:100%;height:100%;object-fit:cover}
.seq-text h3{font-size:19px;margin:0 0 10px}
.seq-text p{font-size:15.5px;line-height:1.85;color:var(--c-text);margin:0 0 12px}
.seq-item:nth-child(even) .seq-media{order:2}
@media (max-width:1023px){
  .seq-body{grid-template-columns:1fr}
  .seq-item:nth-child(even) .seq-media{order:0}
}
@media (max-width:640px){
  .seq-item{grid-template-columns:1fr;padding:22px}
  .seq-num{font-size:32px}
}

/* ============ 信息条 ============ */
.fact-strip{
  margin-top:36px;display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;
}
.fact{padding:26px 24px;border-right:1px solid var(--c-divider)}
.fact:last-child{border-right:0}
.fact strong{display:block;font-size:26px;font-weight:700;color:var(--c-accent);line-height:1.2;margin-bottom:6px}
.fact span{font-size:14px;color:var(--c-muted)}
@media (max-width:900px){
  .fact-strip{grid-template-columns:repeat(2,1fr)}
  .fact{border-bottom:1px solid var(--c-divider)}
  .fact:nth-child(2n){border-right:0}
  .fact:nth-child(3),.fact:nth-child(4){border-bottom:0}
}
@media (max-width:520px){
  .fact-strip{grid-template-columns:1fr}
  .fact{border-right:0;border-bottom:1px solid var(--c-divider)}
  .fact:last-child{border-bottom:0}
}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (max-width:900px){ .faq-grid{grid-template-columns:1fr} }
.faq-item{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:12px;
  padding:18px 20px;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:var(--c-primary-20)}
.faq-item[open]{border-color:var(--c-primary-20);box-shadow:var(--sh-card)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
  font-size:16px;font-weight:600;color:var(--c-title);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;width:24px;height:24px;border-radius:50%;
  border:1px solid rgba(46,154,168,.45);color:var(--c-secondary);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;line-height:1;margin-top:1px;
}
.faq-item[open] summary{color:var(--c-primary)}
.faq-item[open] summary::after{content:"−"}
.faq-item p{font-size:15px;line-height:1.85;color:var(--c-text);margin:12px 0 0}

/* ============ CTA ============ */
.cta-card{
  background:var(--c-primary-050);border-radius:var(--r-card);padding:40px;
  display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center;
}
.cta-card h2{font-size:clamp(20px,2.6vw,26px);margin:0 0 10px}
.cta-card p{margin:0;font-size:15.5px;color:#4C5B72}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 220px;min-width:0;height:48px;padding:0 16px;border-radius:var(--r-input);
  border:1px solid var(--c-border);background:#fff;color:var(--c-title);outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cta-form input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(46,154,168,.18)}
.cta-note{font-size:12.5px;color:var(--c-muted);margin:12px 0 0}
@media (max-width:900px){
  .cta-card{grid-template-columns:1fr;padding:28px}
  .cta-form .btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{background:#EDF3FA;border-top:1px solid var(--c-border);padding:56px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:14.5px;color:var(--c-text);max-width:320px;margin:0 0 10px}
.footer-brand .contact{font-size:13.5px;color:var(--c-muted)}
.footer-col h3{font-size:15px;color:var(--c-title);margin:0 0 14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:var(--c-text)}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  border-top:1px solid var(--c-border);padding:18px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--c-muted);
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
}/* ============ 移动端导航 ============ */
@media (max-width:1023px){
  :root{--stick-top:150px}
  .nav-search--inline{display:none}
  .nav-search--mobile{display:flex}
  .nav-actions .nav-link,
  .nav-actions .btn-outline{display:none}
  .nav-toggle{display:inline-flex}
  .nav-tabs{display:none}
  .nav-top{padding:12px 0 0}
  .page-hero{padding:44px 0 36px}
  .seq-list{gap:20px}
}
@media (max-width:640px){
  .page-hero h1{font-size:25px}
  .page-hero .lede{font-size:15.5px}
  .section{padding:52px 0}
}