/* roulang page: index */
:root{
  --brand:#1B5FD9;
  --brand-700:#134098;
  --brand-050:#EEF4FF;
  --accent:#12A594;
  --accent-050:#E6F7F4;
  --warn:#E9A23B;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E4EAF3;
  --text:#172233;
  --text-2:#4A5A70;
  --text-3:#8494A8;
  --sh-1:0 1px 2px rgba(23,45,80,.05);
  --sh-2:0 6px 20px -8px rgba(23,45,80,.14);
  --sh-3:0 18px 44px -20px rgba(23,45,80,.22);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-banner:20px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"Inter",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--text);font-family:var(--font-cn);line-height:1.35}
h1{font-size:40px;font-weight:700;letter-spacing:-.5px;line-height:1.2}
h2{font-size:28px;font-weight:700}
h3{font-size:20px;font-weight:600;line-height:1.5}
h4{font-size:17px;font-weight:600;line-height:1.6}
p{margin:0 0 1em}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
img{max-width:100%;height:auto;display:block}
ul{list-style:none;margin:0;padding:0}
button{font-family:inherit}
time,.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:2000}
.skip-link:focus{left:0;color:#fff}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:all .18s ease;cursor:pointer;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-lg{min-height:50px;padding:0 28px;font-size:16px}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);text-decoration:none}
.btn-primary:active{background:var(--brand-700);transform:translateY(0)}
.btn-outline-primary{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-outline-primary:hover,.btn-outline-primary:focus{background:var(--brand-050);border-color:var(--brand-050);color:var(--brand-700);transform:translateY(-1px);text-decoration:none}
.btn-light-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.6);color:#fff}
.btn-light-ghost:hover{background:#fff;color:var(--brand-700);text-decoration:none}
.btn-text{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.btn-text:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ 徽章 / 标签 ============ */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:18px;font-weight:600;
  padding:5px 12px;border-radius:999px;
  background:var(--brand-050);color:var(--brand);
}
.badge-accent{background:var(--accent-050);color:var(--accent)}
.badge-warn{background:#FDF3E3;color:#B07519}
.dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}

/* ============ 头部 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.brand-bar{border-bottom:1px solid var(--line);background:#fff}
.brand-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;white-space:nowrap}
.logo:hover{text-decoration:none}
.logo-mark{
  width:38px;height:38px;border-radius:10px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:700;letter-spacing:0;
}
.logo-text{font-size:19px;font-weight:700;color:var(--text);letter-spacing:-.2px}
.quick-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.quick-nav a{
  font-size:14px;color:var(--text-2);padding:8px 12px;border-radius:8px;white-space:nowrap;
}
.quick-nav a:hover{background:var(--brand-050);color:var(--brand);text-decoration:none}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-form{position:relative;display:flex;align-items:center}
.search-form input{
  width:220px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 44px 0 16px;font-size:14px;color:var(--text);background:#fff;
}
.search-form input::placeholder{color:var(--text-3)}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-050)}
.search-form button{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:34px;height:34px;border:none;background:transparent;color:var(--text-3);font-size:14px;
}
.search-form button:hover{color:var(--brand)}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--text);font-size:17px;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand)}
.mobile-menu{background:#fff;border-bottom:1px solid var(--line)}
.mobile-menu .container{padding-top:14px;padding-bottom:18px}
.mobile-menu a{
  display:block;padding:12px 14px;border-radius:10px;color:var(--text-2);font-size:15px;font-weight:500;
}
.mobile-menu a:hover,.mobile-menu a.is-active{background:var(--brand-050);color:var(--brand);text-decoration:none}

/* 频道行 */
.channel-bar{background:#fff;border-bottom:1px solid var(--line)}
.channel-inner{height:54px;display:flex;align-items:stretch}
.channel-nav{display:flex;align-items:stretch;gap:4px;overflow-x:auto;scrollbar-width:none;width:100%}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;
  padding:0 16px;font-size:15px;color:var(--text-2);white-space:nowrap;border-radius:8px 8px 0 0;
  transition:background .18s ease,color .18s ease;
}
.channel-link:hover{background:var(--brand-050);color:var(--brand);text-decoration:none}
.channel-link.is-active{background:var(--brand-050);color:var(--brand);font-weight:600}
.channel-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--brand);
}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:#fff}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.16;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(246,248,252,.92) 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:80px 24px 72px}
.hero h1{margin:18px 0 16px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.hero-points i{color:var(--accent);font-size:13px}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--r-banner);box-shadow:var(--sh-3);width:100%;object-fit:cover;aspect-ratio:4/3;background:var(--brand-050)}
.hero-float{
  position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-2);padding:14px 18px;display:flex;gap:12px;align-items:center;
}
.hero-float strong{font-family:var(--font-num);font-size:22px;color:var(--text);font-variant-numeric:tabular-nums}
.hero-float span{font-size:13px;color:var(--text-3);display:block;line-height:1.4}

/* ============ 通用板块 ============ */
.section{padding:80px 0}
.section-alt{background:#fff}
.section-tint{background:var(--brand-050)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{position:relative;padding-left:16px;margin-bottom:14px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand);
}
.section-head p{font-size:16px;color:var(--text-2);margin:0}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head-row .section-head{margin-bottom:0}

/* ============ 痛点区（不对称网格） ============ */
.pain-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:32px;align-items:start}
.pain-aside{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1)}
.pain-aside h2{padding-left:16px;position:relative;margin-bottom:14px}
.pain-aside h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand)}
.pain-aside p{font-size:15px;color:var(--text-2)}
.pain-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pain-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:all .18s ease;
}
.pain-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.pain-card.wide{grid-column:1 / -1;background:var(--brand-050);border-color:#DCE7FF}
.pain-icon{
  width:42px;height:42px;border-radius:12px;background:var(--brand-050);color:var(--brand);
  display:grid;place-items:center;font-size:17px;margin-bottom:16px;
}
.pain-card.wide .pain-icon{background:#fff}
.pain-card h3{margin-bottom:8px}
.pain-card p{font-size:14.5px;color:var(--text-2);margin:0}

/* ============ 步骤区 ============ */
.steps-layout{display:grid;grid-template-columns:1.25fr 1fr;gap:48px;align-items:center}
.steps-list{display:grid;gap:18px}
.step-item{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:all .18s ease}
.step-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.step-num{
  flex:0 0 40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-family:var(--font-num);font-size:17px;font-weight:700;
}
.step-item h4{margin-bottom:6px}
.step-item p{font-size:14.5px;margin:0;color:var(--text-2)}
.steps-visual img{border-radius:var(--r-banner);box-shadow:var(--sh-2);width:100%;aspect-ratio:3/4;object-fit:cover}

/* ============ 数据区 ============ */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1)}
.stat-card .num{display:block;font-size:40px;font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:-1px}
.stat-card .stat-label{display:block;font-size:15px;font-weight:600;color:var(--text);margin:10px 0 6px}
.stat-card .stat-note{font-size:13px;color:var(--text-3);line-height:1.6}
.stat-trend{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--accent);font-weight:600;margin-top:10px}

/* ============ 资讯列表（CMS 区） ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:all .18s ease;height:100%;
}
.news-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);text-decoration:none}
.news-cover{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--brand-050)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:17px;line-height:1.55;margin:0;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover h3{color:var(--brand)}
.news-excerpt{font-size:14px;color:var(--text-2);line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:10px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.empty-state{
  border:1px dashed #C9D6E8;border-radius:var(--r-card);background:#fff;
  padding:46px 24px;text-align:center;color:var(--text-3);
}
.empty-state i{font-size:26px;color:#C1CFE3;display:block;margin-bottom:12px}
.empty-state p{font-size:14px;margin:0 0 16px}

/* ============ 证言 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-1);
}
.quote-card.tint{background:var(--brand-050);border-color:#DCE7FF}
.quote-card p{font-size:15px;line-height:1.85;color:var(--text-2);margin-bottom:20px}
.quote-user{display:flex;align-items:center;gap:12px}
.quote-avatar{
  width:40px;height:40px;border-radius:50%;background:var(--accent-050);color:var(--accent);
  display:grid;place-items:center;font-weight:700;font-size:15px;
}
.quote-user strong{display:block;font-size:14px;color:var(--text);font-weight:600}
.quote-user span{font-size:13px;color:var(--text-3)}
.stars{color:var(--warn);font-size:12px;letter-spacing:2px;margin-bottom:12px}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.faq-aside h2{padding-left:16px;position:relative;margin-bottom:16px}
.faq-aside h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand)}
.faq-aside p{font-size:15px;color:var(--text-2)}
.faq-contact{
  margin-top:24px;background:var(--brand-050);border:1px solid #DCE7FF;border-radius:var(--r-card);
  padding:22px;
}
.faq-contact strong{display:block;color:var(--text);font-size:16px;margin-bottom:6px}
.faq-contact span{display:block;font-size:14px;color:var(--text-2);margin-bottom:16px}
.accordion-item{border:1px solid var(--line) !important;border-radius:var(--r-card) !important;margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:var(--sh-1)}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--text);background:#fff;padding:18px 20px;
  box-shadow:none !important;
}
.accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-050)}
.accordion-button::after{transition:transform .2s ease}
.accordion-button:focus{box-shadow:0 0 0 2px var(--brand-050) !important;border-color:transparent}
.accordion-body{font-size:15px;color:var(--text-2);line-height:1.85;padding:16px 20px 22px;background:#fff}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand);border-radius:var(--r-banner);
  padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.14;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.88);font-size:15px;margin:0;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.section-cta{padding:0 0 88px}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{width:34px;height:34px;font-size:16px}
.footer-brand strong{font-size:17px;color:var(--text)}
.footer-about p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:14px}
.footer-contact{font-size:14px;color:var(--text-2)}
.footer-contact span{display:block;margin-bottom:6px}
.footer-contact i{color:var(--brand);width:18px}
.site-footer h4{font-size:15px;color:var(--brand-700);margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.footer-qr{
  width:120px;height:120px;border-radius:var(--r-img);border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;color:var(--text-3);font-size:13px;text-align:center;padding:12px;
}
.footer-qr i{font-size:24px;color:var(--brand);display:block;margin-bottom:6px}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3);
}
.footer-bottom p{margin:0}
.footer-note{font-size:13px;color:var(--text-3)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .quick-nav{display:none}
  .hero-inner{gap:40px;padding:64px 24px 60px}
  .pain-grid{grid-template-columns:1fr;gap:24px}
  .steps-layout{grid-template-columns:1fr;gap:32px}
  .steps-visual img{aspect-ratio:16/9}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  h1{font-size:32px}
  h2{font-size:24px}
  .search-form input{width:170px}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .hero-inner{grid-template-columns:1fr;padding:52px 24px 48px}
  .hero-visual{order:-1}
  .hero-float{left:12px;bottom:-14px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
  .cta-band{padding:44px 32px}
  .site-header.is-scrolled .channel-bar{display:none}
}
@media (max-width:767.98px){
  .container{padding:0 18px}
  .brand-inner{height:64px;gap:14px}
  .logo-text{font-size:17px}
  .logo-mark{width:34px;height:34px;font-size:16px}
  .quick-nav{display:none}
  .search-form{display:none}
  .channel-link{padding:0 14px;font-size:14px}
  .pain-cards{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:14px}
  .section-cta{padding:0 0 56px}
  .cta-band{padding:36px 24px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{padding:48px 0 0}
}
@media (max-width:575.98px){
  h1{font-size:28px;line-height:1.3}
  h2{font-size:22px}
  .hero-sub{font-size:16px}
  .hero-cta .btn{width:100%}
  .hero-float{position:static;margin-top:16px;justify-content:flex-start}
  .step-item{padding:18px}
  .stat-card .num{font-size:34px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --brand:#1B5FD9;
  --brand-700:#134098;
  --brand-050:#EEF4FF;
  --accent:#12A594;
  --accent-050:#E6F7F4;
  --warn:#E9A23B;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E4EAF3;
  --text:#172233;
  --text-2:#4A5A70;
  --text-3:#8494A8;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-banner:20px;
  --sh-1:0 1px 2px rgba(23,45,80,.05);
  --sh-2:0 6px 20px -8px rgba(23,45,80,.14);
  --sh-3:0 18px 44px -20px rgba(23,45,80,.22);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{color:var(--text);margin:0 0 12px;font-weight:700;letter-spacing:-.2px}
h1{font-size:40px;line-height:1.2}
h2{font-size:28px;line-height:1.36}
h3{font-size:20px;line-height:1.5;font-weight:600}
h4{font-size:17px;line-height:1.6;font-weight:600}
p{margin:0 0 1.1em}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
img{max-width:100%;height:auto;display:block}
ul,ol{padding-left:1.2em}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-stuck{box-shadow:var(--sh-2)}
.topbar{background:#fff}
.topbar-inner{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{text-decoration:none;color:var(--text)}
.logo-mark{
  width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:19px;
  box-shadow:var(--sh-1);flex:0 0 auto;
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.3px;color:var(--text);white-space:nowrap}
.topbar-search{flex:1 1 auto;max-width:420px;margin-left:8px}
.topbar-search form{display:flex;position:relative}
.topbar-search input{
  width:100%;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);
  padding:0 44px 0 16px;background:#fff;color:var(--text);transition:border-color .18s,box-shadow .18s;
}
.topbar-search input::placeholder{color:var(--text-3)}
.topbar-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,95,217,.14)}
.topbar-search button{
  position:absolute;right:6px;top:6px;width:32px;height:32px;border:0;border-radius:8px;
  background:var(--brand-050);color:var(--brand);cursor:pointer;
}
.topbar-search button:hover{background:var(--brand);color:#fff}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.search-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;color:var(--text-2);cursor:pointer;
}
.search-toggle:hover{border-color:var(--brand);color:var(--brand)}
.mobile-search{display:none;border-top:1px solid var(--line);padding:12px 0;background:#fff}
.mobile-search.open{display:block}

/* button system */
.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:0 20px;font-weight:600;font-size:15px;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease;}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);text-decoration:none}
.btn-brand:active{background:var(--brand-700);transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-050);color:var(--brand-700);text-decoration:none}
.btn-link-plain{background:transparent;color:var(--brand);padding:0 4px;min-height:44px}
.btn-link-plain:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.btn-sm{min-height:38px;padding:0 14px;font-size:14px}

/* channel bar */
.channelbar{background:#fff;border-top:1px solid var(--line)}
.quick-nav{display:flex;align-items:center;gap:6px;min-height:54px;overflow-x:auto;scrollbar-width:none}
.quick-nav::-webkit-scrollbar{display:none}
.quick-nav a{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:15px;color:var(--text-2);
  position:relative;line-height:1.4;
}
.quick-nav a:hover{background:var(--brand-050);color:var(--brand-700);text-decoration:none}
.quick-nav a.active{background:var(--brand-050);color:var(--brand);font-weight:600}
.quick-nav a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:-14px;height:2px;background:var(--brand);border-radius:2px;
}
.nav-hamburger{display:none}

/* ---------- page shell ---------- */
.page-main{padding:28px 0 8px}
.breadcrumb-bar{font-size:14px;color:var(--text-3);margin-bottom:20px}
.breadcrumb-bar ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.breadcrumb-bar li{display:flex;align-items:center;gap:6px;max-width:100%}
.breadcrumb-bar li+li::before{content:"/";color:var(--line);margin-right:2px}
.breadcrumb-bar a{color:var(--text-3)}
.breadcrumb-bar a:hover{color:var(--brand)}
.breadcrumb-bar .current{color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:340px;display:inline-block;vertical-align:bottom}

/* article head */
.article-head{background:#fff;border:1px solid var(--line);border-radius:var(--r-banner);padding:32px 34px;box-shadow:var(--sh-1)}
.article-head h1{font-size:36px;line-height:1.3;margin:14px 0 18px;letter-spacing:-.6px}
.badge-pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:18px;font-weight:600;
  padding:5px 12px;border-radius:999px;background:var(--brand-050);color:var(--brand)}
.badge-accent{background:var(--accent-050);color:var(--accent)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;font-size:14px;color:var(--text-3)}
.meta-row i{color:var(--brand);margin-right:6px}
.meta-row .num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.head-tools{display:flex;gap:10px;flex-wrap:wrap}
.article-hero-img{margin-top:24px;border-radius:var(--r-img);overflow:hidden}
.article-hero-img img{width:100%;aspect-ratio:21/9;object-fit:cover}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:32px;align-items:start;margin-top:28px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px}
.article-body{padding:34px 38px}
.article-body .article-content{max-width:780px;font-size:16.5px;line-height:1.9;color:var(--text-2)}
.article-content h2{font-size:26px;line-height:1.4;margin:38px 0 14px;padding-left:14px;position:relative;border:0}
.article-content h2:first-child{margin-top:0}
.article-content h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:3px;background:var(--brand)}
.article-content h3{font-size:19px;margin:26px 0 10px;font-weight:600}
.article-content h4{font-size:17px;margin:22px 0 8px}
.article-content p{margin:0 0 1.1em}
.article-content a{text-decoration:underline;text-underline-offset:3px}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:1.3em}
.article-content li{margin-bottom:.5em}
.article-content ul li::marker{color:var(--brand)}
.article-content ol li::marker{color:var(--brand);font-weight:600}
.article-content blockquote{
  margin:22px 0;padding:18px 22px;background:var(--brand-050);border-left:3px solid var(--brand);
  border-radius:0 var(--r-card) var(--r-card) 0;color:var(--text);font-size:16px;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:var(--r-img);margin:20px 0 8px;width:100%}
.article-content figure{margin:22px 0}
.article-content figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:6px}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;background:#fff}
.article-content th{background:var(--brand-050);color:var(--text);font-weight:600;text-align:left}
.article-content th,.article-content td{padding:12px 14px;border:1px solid var(--line)}
.article-content tbody tr:nth-child(even){background:var(--brand-050)}
.article-content hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-content code{background:var(--brand-050);color:var(--brand-700);padding:2px 6px;border-radius:6px;font-size:14px}

/* sidebar */
.side-stack{display:grid;gap:20px}
.side-card{padding:22px}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--brand)}
.toc-list{list-style:none;padding:0;margin:0;font-size:14px;max-height:340px;overflow:auto}
.toc-list li{margin-bottom:4px}
.toc-list a{display:block;padding:6px 10px;border-radius:8px;color:var(--text-2);border-left:2px solid transparent}
.toc-list a:hover{background:var(--brand-050);color:var(--brand-700);text-decoration:none}
.toc-list a.is-active{background:var(--brand-050);color:var(--brand);border-left-color:var(--brand);font-weight:600}
.toc-list .lvl-3 a{padding-left:24px;font-size:13.5px;color:var(--text-3)}
.hot-list{list-style:none;padding:0;margin:0}
.hot-list li{padding:11px 0;border-bottom:1px dashed var(--line)}
.hot-list li:last-child{border-bottom:0;padding-bottom:0}
.hot-list a{color:var(--text);font-size:14.5px;line-height:1.6;display:block}
.hot-list a:hover{color:var(--brand);text-decoration:none}
.hot-list span{display:block;font-size:12.5px;color:var(--text-3);margin-top:4px}
.cta-side{background:var(--brand);border:0;color:#eaf1ff}
.cta-side h3{color:#fff}
.cta-side p{color:rgba(255,255,255,.86);font-size:14.5px}
.cta-side .btn{width:100%;background:#fff;color:var(--brand);border-color:#fff}
.cta-side .btn:hover{background:#eef4ff;color:var(--brand-700);text-decoration:none}

/* article footer bits */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row .tag{font-size:13px;padding:6px 13px;border-radius:999px;background:var(--bg);border:1px solid var(--line);color:var(--text-2)}
.tag-row .tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-050);text-decoration:none}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.prev-next a{display:block;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff}
.prev-next a:hover{border-color:var(--brand);box-shadow:var(--sh-2);text-decoration:none}
.prev-next .lbl{font-size:12.5px;color:var(--text-3);display:block;margin-bottom:6px}
.prev-next .tit{font-size:14.5px;color:var(--text);line-height:1.6}
.back-row{margin-top:22px}

/* related */
.section{padding:56px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head h2{margin:0}
.section-head p{margin:4px 0 0;font-size:14.5px;color:var(--text-3)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease;height:100%}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-card .thumb{overflow:hidden;aspect-ratio:16/9;background:var(--brand-050)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .thumb img{transform:scale(1.03)}
.news-card .body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.news-card h3{font-size:17px;line-height:1.55;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h3 a{color:var(--text)}
.news-card h3 a:hover{color:var(--brand);text-decoration:none}
.news-card p{margin:0;font-size:14px;line-height:1.7;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .meta{font-size:13px;color:var(--text-3);margin-top:auto;display:flex;align-items:center;gap:8px}
.news-card .meta .num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* empty state */
.empty-state{border:1px dashed var(--line);background:#fff;border-radius:var(--r-card);padding:46px 24px;text-align:center}
.empty-state i{font-size:30px;color:var(--text-3);margin-bottom:14px;display:block}
.empty-state p{color:var(--text-3);margin-bottom:18px}
.empty-state h2{font-size:22px;margin-bottom:8px}

/* bottom cta */
.bottom-cta{margin-top:64px;background:var(--brand);border-radius:var(--r-banner);overflow:hidden;position:relative}
.bottom-cta::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.14}
.bottom-cta .inner{position:relative;padding:52px 40px;display:flex;flex-wrap:wrap;align-items:center;gap:24px;justify-content:space-between}
.bottom-cta h2{color:#fff;margin:0 0 8px;font-size:28px}
.bottom-cta p{color:rgba(255,255,255,.88);margin:0;font-size:15.5px}
.bottom-cta .actions{display:flex;gap:12px;flex-wrap:wrap}
.bottom-cta .btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.bottom-cta .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff}
.bottom-cta .btn-white{background:#fff;color:var(--brand)}
.bottom-cta .btn-white:hover{background:#eef4ff;color:var(--brand-700);transform:translateY(-1px);text-decoration:none}

/* footer */
.site-footer{background:var(--bg);border-top:1px solid var(--line);margin-top:72px;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{font-size:17px;color:var(--text)}
.footer-col h4{font-size:15px;color:var(--brand-700);margin-bottom:16px}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.85}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:grid;gap:8px;font-size:13.5px;color:var(--text-2)}
.footer-contact i{color:var(--brand);margin-right:6px}
.footer-qr{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:14px;font-size:13.5px;color:var(--text-2)}
.footer-qr i{font-size:26px;color:var(--brand)}
.footer-note{font-size:13px;color:var(--text-3)}
.footer-bottom{margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3)}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}

@media (max-width:1199.98px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .side-stack{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
}
@media (max-width:991.98px){
  .topbar-search{display:none}
  .search-toggle{display:inline-flex;align-items:center;justify-content:center}
  .site-header{position:sticky}
  .article-head h1{font-size:30px}
  .article-body{padding:26px 22px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bottom-cta .inner{padding:40px 26px}
  h1{font-size:32px}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px}
  .brand-text{font-size:17px}
  .quick-nav{min-height:48px;padding-bottom:2px}
  .quick-nav a.active::after{display:none}
  .article-head{padding:22px 18px;border-radius:16px}
  .article-head h1{font-size:25px}
  .article-body .article-content{font-size:16px;line-height:1.85}
  .article-content h2{font-size:22px}
  .side-stack{grid-template-columns:minmax(0,1fr)}
  .grid-3{grid-template-columns:minmax(0,1fr)}
  .prev-next{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  h2{font-size:23px}
}
@media (max-width:519.98px){
  .footer-grid{grid-template-columns:1fr}
  .bottom-cta h2{font-size:22px}
  .breadcrumb-bar .current{max-width:180px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
      --brand:#1B5FD9;
      --brand-700:#134098;
      --brand-050:#EEF4FF;
      --accent:#12A594;
      --accent-050:#E6F7F4;
      --warn:#E9A23B;
      --bg:#F6F8FC;
      --surface:#FFFFFF;
      --line:#E4EAF3;
      --text:#172233;
      --text-2:#4A5A70;
      --text-3:#8494A8;
      --sh-1:0 1px 2px rgba(23,45,80,.05);
      --sh-2:0 6px 20px -8px rgba(23,45,80,.14);
      --sh-3:0 18px 44px -20px rgba(23,45,80,.22);
      --r-card:14px;
      --r-btn:10px;
      --r-img:12px;
      --r-band:20px;
      --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
      --font-num:"Inter",system-ui,sans-serif;
    }

    *,*::before,*::after{box-sizing:border-box;}
    html{-webkit-text-size-adjust:100%;}
    body{
      margin:0;
      font-family:var(--font-cn);
      font-size:16px;
      line-height:1.75;
      color:var(--text-2);
      background:var(--bg);
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    h1,h2,h3,h4,h5{color:var(--text);margin:0;font-weight:700;line-height:1.35;}
    h1{font-size:40px;letter-spacing:-.5px;}
    h2{font-size:28px;}
    h3{font-size:20px;font-weight:600;line-height:1.5;}
    h4{font-size:17px;font-weight:600;line-height:1.6;}
    p{margin:0 0 1em;}
    p:last-child{margin-bottom:0;}
    a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
    a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
    ul,ol{margin:0;padding:0;list-style:none;}
    img{max-width:100%;display:block;}
    button,input{font-family:inherit;font-size:inherit;}
    .container{max-width:1200px;padding-inline:24px;margin-inline:auto;width:100%;}
    .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

    :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

    /* ---------- Header ---------- */
    .site-header{background:var(--surface);position:sticky;top:0;z-index:1030;transition:box-shadow .2s ease;}
    .site-header.is-stuck{box-shadow:var(--sh-1);}
    .brand-bar{border-bottom:1px solid var(--line);}
    .brand-inner{display:flex;align-items:center;gap:20px;min-height:68px;}
    .logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
    .logo:hover{text-decoration:none;}
    .logo-mark{
      width:38px;height:38px;border-radius:11px;
      background:linear-gradient(135deg,var(--brand),var(--brand-700));
      color:#fff;font-weight:700;font-size:19px;
      display:inline-flex;align-items:center;justify-content:center;
      box-shadow:var(--sh-2);
    }
    .logo-text{font-size:19px;font-weight:700;color:var(--text);letter-spacing:-.2px;white-space:nowrap;}
    .quick-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
    .quick-nav a{
      padding:7px 12px;border-radius:9px;font-size:14.5px;color:var(--text-2);
    }
    .quick-nav a:hover{background:var(--brand-050);color:var(--brand);text-decoration:none;}
    .brand-tools{margin-left:auto;display:flex;align-items:center;gap:12px;}
    .site-search{
      display:flex;align-items:center;gap:8px;
      height:44px;padding:0 14px;
      border:1px solid var(--line);border-radius:var(--r-btn);
      background:var(--bg);min-width:230px;
      transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
    }
    .site-search i{color:var(--text-3);font-size:14px;}
    .site-search input{
      border:0;background:transparent;outline:none;width:100%;
      height:42px;color:var(--text);font-size:14.5px;
    }
    .site-search input::placeholder{color:var(--text-3);}
    .site-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(27,95,217,.14);}
    .search-toggle{
      display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
      background:#fff;color:var(--text-2);align-items:center;justify-content:center;cursor:pointer;
    }
    .search-toggle:hover{color:var(--brand);border-color:#C9DAF7;}

    .btn-brand{
      background:var(--brand);border:1px solid var(--brand);color:#fff;
      border-radius:var(--r-btn);min-height:44px;padding:10px 20px;
      font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:8px;
      transition:background .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
    }
    .btn-brand:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2);}
    .btn-brand:active{transform:translateY(0);background:var(--brand-700);}
    .btn-ghost{
      background:#fff;border:1px solid var(--line);color:var(--brand);
      border-radius:var(--r-btn);min-height:44px;padding:10px 20px;font-weight:600;font-size:15px;
      display:inline-flex;align-items:center;gap:8px;
      transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease,background .18s ease;
    }
    .btn-ghost:hover{border-color:#C9DAF7;background:var(--brand-050);color:var(--brand-700);text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2);}
    .btn-line{background:transparent;border:0;color:var(--brand);font-weight:600;padding:6px 2px;min-height:44px;display:inline-flex;align-items:center;gap:6px;}
    .btn-line:hover{text-decoration:underline;text-underline-offset:4px;color:var(--brand-700);}
    .btn-brand.sm,.btn-ghost.sm{min-height:40px;padding:8px 16px;font-size:14.5px;}

    .channel-bar{border-bottom:1px solid var(--line);background:var(--surface);}
    .channel-inner{display:flex;align-items:center;min-height:52px;}
    .channel-nav{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
    .channel-nav::-webkit-scrollbar{display:none;}
    .channel-nav a{
      position:relative;white-space:nowrap;
      padding:8px 16px;font-size:15px;color:var(--text-2);border-radius:9px;
      transition:background .18s ease,color .18s ease;
    }
    .channel-nav a::after{
      content:"";position:absolute;left:16px;right:16px;bottom:-1px;height:2px;
      background:transparent;border-radius:2px;transition:background .18s ease;
    }
    .channel-nav a:hover{background:var(--brand-050);color:var(--brand);text-decoration:none;}
    .channel-nav a.active{background:var(--brand-050);color:var(--brand);font-weight:600;}
    .channel-nav a.active::after{background:var(--brand);}

    /* ---------- Breadcrumb ---------- */
    .crumb-bar{padding:18px 0 0;}
    .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);}
    .crumb a{color:var(--text-3);}
    .crumb a:hover{color:var(--brand);}
    .crumb .sep{color:#C3CEDD;}
    .crumb .cur{color:var(--text-2);}

    /* ---------- Hero ---------- */
    .page-hero{
      margin-top:18px;
      border-radius:var(--r-band);
      overflow:hidden;
      background-image:linear-gradient(105deg,rgba(255,255,255,.94),rgba(255,255,255,.86)),url("/assets/images/backpic/back-1.png");
      background-size:cover;
      background-position:center;
      border:1px solid var(--line);
      box-shadow:var(--sh-1);
    }
    .page-hero-inner{
      min-height:250px;display:flex;align-items:center;gap:36px;padding:38px 40px;
    }
    .page-hero-copy{max-width:660px;}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      background:var(--brand-050);color:var(--brand);
      border-radius:999px;padding:5px 14px;font-size:13px;font-weight:600;margin-bottom:16px;
    }
    .eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;}
    .page-hero h1{margin-bottom:14px;}
    .page-hero-lead{font-size:17px;color:var(--text-2);line-height:1.8;max-width:620px;}
    .hero-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
    .fact-chip{
      background:#fff;border:1px solid var(--line);border-radius:999px;
      padding:7px 15px;font-size:14px;color:var(--text-2);box-shadow:var(--sh-1);
    }
    .fact-chip i{color:var(--accent);margin-right:6px;}
    .hero-visual{
      flex:0 0 300px;margin-left:auto;border-radius:var(--r-img);overflow:hidden;
      border:1px solid var(--line);box-shadow:var(--sh-2);background:#fff;
    }
    .hero-visual img{width:100%;height:190px;object-fit:cover;}

    /* ---------- Section base ---------- */
    .section{padding:76px 0;}
    .section.tight{padding:56px 0;}
    .section-alt{background:var(--surface);border-block:1px solid var(--line);}
    .section-head{max-width:720px;margin-bottom:36px;}
    .section-head h2{position:relative;padding-left:16px;margin-bottom:12px;}
    .section-head h2::before{
      content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--brand);
    }
    .section-head p{font-size:16px;color:var(--text-2);}
    .section-head.between{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;max-width:none;}

    /* ---------- Steps ---------- */
    .steps{display:flex;flex-direction:column;gap:26px;}
    .step{
      display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;
      background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
      padding:24px;box-shadow:var(--sh-1);
      transition:box-shadow .18s ease,transform .18s ease;
    }
    .step:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
    .step:nth-child(even) .step-media{order:-1;}
    .step-body{display:flex;gap:16px;}
    .step-no{
      flex:0 0 44px;width:44px;height:44px;border-radius:12px;
      background:var(--brand-050);color:var(--brand);
      font-family:var(--font-num);font-weight:700;font-size:19px;
      display:flex;align-items:center;justify-content:center;
    }
    .step-body h3{margin-bottom:8px;}
    .step-body p{font-size:15.5px;line-height:1.8;}
    .step-tips{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px;}
    .mini-tag{
      font-size:12.5px;color:var(--accent);background:var(--accent-050);
      border-radius:999px;padding:4px 11px;font-weight:600;
    }
    .mini-tag.warn{color:#9A6612;background:#FDF3E2;}
    .step-media{
      border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
      background:var(--brand-050);
    }
    .step-media img{width:100%;height:210px;object-fit:cover;transition:transform .3s ease;}
    .step:hover .step-media img{transform:scale(1.03);}

    /* ---------- Checklist ---------- */
    .check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
    .check-card{
      background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
      padding:22px;box-shadow:var(--sh-1);transition:box-shadow .18s ease,transform .18s ease;
    }
    .check-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
    .check-icon{
      width:42px;height:42px;border-radius:12px;background:var(--brand-050);color:var(--brand);
      display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:14px;
    }
    .check-card h3{margin-bottom:10px;}
    .check-card ul{display:flex;flex-direction:column;gap:8px;}
    .check-card li{position:relative;padding-left:20px;font-size:15px;line-height:1.75;}
    .check-card li::before{
      content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;border-radius:50%;
      background:var(--brand);opacity:.85;
    }

    .notice-band{
      background:var(--brand-050);border:1px solid #D7E4FB;border-radius:var(--r-band);
      padding:24px 26px;display:flex;gap:18px;align-items:flex-start;
    }
    .notice-band .ico{color:var(--warn);font-size:20px;line-height:1.4;}
    .notice-band h3{margin-bottom:8px;}
    .notice-band p{font-size:15.5px;}

    /* ---------- FAQ ---------- */
    .faq-grid{display:grid;grid-template-columns:340px 1fr;gap:44px;align-items:start;}
    .faq-side h2{padding-left:16px;position:relative;margin-bottom:14px;}
    .faq-side h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--brand);}
    .faq-side p{font-size:15.5px;}
    .faq-side .side-box{
      margin-top:22px;background:var(--surface);border:1px solid var(--line);
      border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);
    }
    .faq-side .side-box strong{display:block;color:var(--text);margin-bottom:6px;font-size:15.5px;}
    .faq-side .side-box .btn-brand{margin-top:14px;}
    .accordion-item{
      background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
      margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
    }
    .accordion-button{
      background:var(--surface);color:var(--text);font-weight:600;font-size:16.5px;
      padding:18px 22px;box-shadow:none !important;border-radius:var(--r-card) !important;
    }
    .accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-050);}
    .accordion-button::after{
      background-image:none;
      content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;
      width:auto;height:auto;font-size:15px;color:var(--text-3);
      transition:transform .2s ease;
    }
    .accordion-button:not(.collapsed)::after{color:var(--brand);transform:rotate(180deg);}
    .accordion-body{padding:6px 22px 20px;font-size:15.5px;line-height:1.85;color:var(--text-2);}

    /* ---------- CTA band ---------- */
    .cta-band{
      border-radius:var(--r-band);overflow:hidden;color:#fff;
      background-image:linear-gradient(rgba(27,95,217,.94),rgba(19,64,152,.96)),url("/assets/images/backpic/back-2.png");
      background-size:cover;background-position:center;
      padding:46px 44px;display:flex;align-items:center;gap:32px;flex-wrap:wrap;
      box-shadow:var(--sh-3);
    }
    .cta-band h2{color:#fff;margin-bottom:10px;}
    .cta-band p{color:rgba(255,255,255,.88);max-width:640px;font-size:16px;}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;margin-left:auto;}
    .cta-band .btn-light-plane{
      background:#fff;color:var(--brand-700);border:1px solid #fff;border-radius:var(--r-btn);
      min-height:44px;padding:10px 22px;font-weight:600;display:inline-flex;align-items:center;gap:8px;
      transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
    }
    .cta-band .btn-light-plane:hover{transform:translateY(-1px);box-shadow:var(--sh-2);color:var(--brand);text-decoration:none;background:#F5F9FF;}
    .cta-band .btn-outline-plane{
      background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6);border-radius:var(--r-btn);
      min-height:44px;padding:10px 22px;font-weight:600;display:inline-flex;align-items:center;gap:8px;
      transition:background .18s ease,transform .18s ease;
    }
    .cta-band .btn-outline-plane:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none;transform:translateY(-1px);}

    /* ---------- Footer ---------- */
    .site-footer{background:var(--bg);border-top:1px solid var(--line);margin-top:76px;padding-top:56px;}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:40px;}
    .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
    .footer-brand .logo-mark{width:34px;height:34px;border-radius:10px;font-size:17px;}
    .footer-brand strong{font-size:17px;color:var(--text);}
    .footer-col p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
    .footer-col h4{font-size:16px;color:var(--brand-700);margin-bottom:16px;}
    .footer-links{display:flex;flex-direction:column;gap:10px;}
    .footer-links a{font-size:14.5px;color:var(--text-2);}
    .footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
    .footer-contact{display:flex;flex-direction:column;gap:8px;margin-top:14px;font-size:14px;color:var(--text-3);}
    .footer-contact i{color:var(--brand);margin-right:8px;}
    .footer-qr{
      border:1px dashed #C9D6E8;border-radius:var(--r-card);background:#fff;
      padding:18px;text-align:center;font-size:13.5px;color:var(--text-3);
    }
    .footer-qr i{display:block;font-size:30px;color:var(--brand);margin-bottom:8px;}
    .footer-note{font-size:13.5px;color:var(--text-3);line-height:1.8;}
    .footer-bottom{
      border-top:1px solid var(--line);padding:20px 0 30px;
      display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
      font-size:13.5px;color:var(--text-3);
    }

    /* ---------- Reveal ---------- */
    .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
    .reveal.in{opacity:1;transform:none;}

    /* ---------- Responsive ---------- */
    @media (max-width:1199.98px){
      .quick-nav{display:none;}
    }
    @media (max-width:991.98px){
      h1{font-size:32px;}
      h2{font-size:24px;}
      .site-search{display:none;}
      .search-toggle{display:inline-flex;}
      .channel-inner{
        -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
        mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
      }
      .page-hero-inner{flex-direction:column;align-items:flex-start;min-height:0;padding:30px 26px;gap:24px;}
      .hero-visual{flex:1 1 auto;width:100%;margin-left:0;}
      .hero-visual img{height:200px;}
      .section{padding:56px 0;}
      .steps{gap:20px;}
      .step{grid-template-columns:1fr;gap:20px;}
      .step:nth-child(even) .step-media{order:0;}
      .check-grid{grid-template-columns:repeat(2,1fr);}
      .faq-grid{grid-template-columns:1fr;gap:26px;}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
      .cta-band{padding:34px 26px;}
      .cta-actions{margin-left:0;width:100%;}
    }
    @media (max-width:767.98px){
      .brand-inner{min-height:62px;gap:12px;}
      .logo-text{font-size:16.5px;white-space:normal;line-height:1.2;}
      .brand-tools .btn-brand.sm{display:none;}
      .page-hero{margin-top:14px;border-radius:16px;}
      .check-grid{grid-template-columns:1fr;}
      .footer-grid{grid-template-columns:1fr;gap:26px;}
      .footer-bottom{flex-direction:column;gap:8px;}
      .section{padding:44px 0;}
      .step{padding:20px;}
      .step-media img{height:180px;}
    }
    @media (max-width:575.98px){
      .container{padding-inline:18px;}
      h1{font-size:26px;line-height:1.35;}
      h2{font-size:21px;}
      .page-hero-inner{padding:24px 20px;}
      .page-hero-lead{font-size:15.5px;}
      .accordion-button{font-size:15.5px;padding:16px 18px;}
      .accordion-body{padding:4px 18px 18px;}
      .cta-band{padding:28px 20px;border-radius:16px;}
      .cta-band .btn-light-plane,.cta-band .btn-outline-plane{width:100%;justify-content:center;}
      .hero-visual img{height:170px;}
    }

    @media (prefers-reduced-motion:reduce){
      *,*::before,*::after{transition:none !important;animation:none !important;}
      .reveal{opacity:1;transform:none;}
    }

/* roulang page: category2 */
:root{
  --brand:#1B5FD9;
  --brand-700:#134098;
  --brand-050:#EEF4FF;
  --accent:#12A594;
  --accent-050:#E6F7F4;
  --warn:#E9A23B;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E4EAF3;
  --text:#172233;
  --text-2:#4A5A70;
  --text-3:#8494A8;
  --sh-1:0 1px 2px rgba(23,45,80,.05);
  --sh-2:0 6px 20px -8px rgba(23,45,80,.14);
  --sh-3:0 18px 44px -20px rgba(23,45,80,.22);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-banner:20px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-2);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{color:var(--text);margin:0;font-weight:700;letter-spacing:-.2px}
h1{font-size:40px;line-height:1.2;letter-spacing:-.5px}
h2{font-size:28px;line-height:1.35}
h3{font-size:20px;line-height:1.5;font-weight:600}
h4{font-size:17px;line-height:1.65;font-weight:600}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.section{padding:80px 0}
.section-tight{padding:56px 0}
.bg-soft{background:var(--brand-050)}
.bg-white{background:var(--surface)}

/* ============ 头部 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:var(--surface)}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.brand-row{height:68px;border-bottom:1px solid var(--line);background:var(--surface)}
.brand-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:19px}
.brand:hover{color:var(--brand);text-decoration:none}
.logo-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;
  box-shadow:0 6px 16px -8px rgba(27,95,217,.8);
  flex:none;
}
.brand-text{white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#FBFCFE;color:var(--text-3);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(27,95,217,.15)}
.search-box input{border:0;background:transparent;outline:none;width:190px;font-size:15px;color:var(--text)}
.search-box input::placeholder{color:var(--text-3)}
.menu-toggle{
  display:none;width:44px;height:44px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--text);
}
.channel-row{border-bottom:1px solid var(--line);background:var(--surface)}
.quick-nav{display:flex;align-items:center;gap:4px;height:54px;overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none}
.quick-nav::-webkit-scrollbar{display:none}
.quick-nav a{
  position:relative;
  padding:8px 16px;border-radius:8px;
  color:var(--text-2);font-size:15px;font-weight:500;white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.quick-nav a:hover{background:var(--brand-050);color:var(--brand);text-decoration:none}
.quick-nav a.active{background:var(--brand-050);color:var(--brand);font-weight:600}
.quick-nav a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:-15px;height:2px;background:var(--brand);border-radius:2px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:all .18s ease;cursor:pointer;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{background:var(--brand-700);transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost:active{background:#E3EDFF;transform:translateY(0)}
.btn-light{background:#fff;color:var(--brand);box-shadow:var(--sh-1)}
.btn-light:hover{background:#F1F6FF;color:var(--brand-700);text-decoration:none;transform:translateY(-1px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none;transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ============ 面包屑 ============ */
.breadcrumb-nav{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:14px;color:var(--text-3);padding:22px 0 0}
.breadcrumb-nav a{color:var(--text-3)}
.breadcrumb-nav a:hover{color:var(--brand)}
.breadcrumb-nav .sep{color:#C3CDDB}
.breadcrumb-nav [aria-current]{color:var(--text-2)}

/* ============ 分类页 Hero ============ */
.page-hero{
  position:relative;
  background-image:linear-gradient(rgba(255,255,255,.93),rgba(255,255,255,.86)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  padding:44px 0 52px;
}
.page-hero h1{max-width:760px;margin-bottom:14px}
.page-hero .hero-sub{max-width:660px;font-size:17px;line-height:1.8;color:var(--text-2);margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--text-2)}
.hero-points li{display:flex;align-items:center;gap:7px}
.hero-points i{color:var(--accent);font-size:13px}

/* ============ 板块标题 ============ */
.section-head{margin-bottom:28px}
.section-head h2{position:relative;padding-left:16px;margin-bottom:10px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand);
}
.section-head p{color:var(--text-2);margin:0;max-width:720px}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:18px;font-weight:600;
  background:var(--brand-050);color:var(--brand);
}
.badge-accent{background:var(--accent-050);color:var(--accent)}
.badge-warn{background:#FDF3E2;color:#B4761C}

/* ============ 图文卡网格 ============ */
.media-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.media-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow .2s ease,transform .2s ease;
  display:flex;flex-direction:column;
}
.media-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.media-card .thumb{overflow:hidden;aspect-ratio:16/9;background:var(--brand-050)}
.media-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease}
.media-card:hover .thumb img{transform:scale(1.03)}
.media-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.media-card .body h3{margin:0}
.media-card .body p{margin:0;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.media-card .meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}

/* ============ 侧栏要点卡 ============ */
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px;margin-bottom:20px;
}
.aside-card h3{margin-bottom:14px}
.aside-stick{position:sticky;top:140px}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:11px 0;border-bottom:1px dashed var(--line);
  font-size:14.5px;line-height:1.7;color:var(--text-2);
}
.check-list li:last-child{border-bottom:0;padding-bottom:4px}
.check-list i{color:var(--accent);margin-top:4px;font-size:13px;flex:none}
.aside-card .btn{margin-top:16px}
.aside-note{
  background:var(--accent-050);border:1px solid #CFEDE7;border-radius:var(--r-card);
  padding:18px 20px;font-size:14px;line-height:1.75;color:#0E7C70;
}
.aside-note strong{color:#0B6259;display:block;margin-bottom:4px;font-size:15px}

/* ============ 适用场景（横向错位卡） ============ */
.scene-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:box-shadow .2s ease,transform .2s ease;
}
.scene-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.scene-card:nth-child(2){margin-top:24px}
.scene-icon{
  width:46px;height:46px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-050);color:var(--brand);font-size:19px;margin-bottom:14px;
}
.scene-card h3{margin-bottom:8px;font-size:18px}
.scene-card p{font-size:14.5px;margin:0;color:var(--text-2)}

/* ============ 处置流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:flow}
.flow-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px 22px;box-shadow:var(--sh-1)}
.flow-item::before{
  counter-increment:flow;content:"0" counter(flow);
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;
  background:var(--brand);color:#fff;font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.flow-item h4{margin-bottom:8px}
.flow-item p{font-size:14px;margin:0;color:var(--text-2)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:minmax(0,0.85fr) minmax(0,1.15fr);gap:40px;align-items:start}
.faq-lead p{font-size:15px;color:var(--text-2)}
.faq-lead .btn{margin-top:8px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  padding:20px 34px 20px 0;position:relative;
  font-size:16.5px;font-weight:600;color:var(--text);
  transition:color .18s ease;cursor:pointer;
}
.faq-q:hover{color:var(--brand)}
.faq-q i{
  position:absolute;right:4px;top:50%;transform:translateY(-50%);
  color:var(--text-3);font-size:14px;transition:transform .2s ease,color .2s ease;
}
.faq-q[aria-expanded="true"]{color:var(--brand)}
.faq-q[aria-expanded="true"] i{transform:translateY(-50%) rotate(180deg);color:var(--brand)}
.faq-a{padding:0 34px 20px 0;font-size:15px;line-height:1.85;color:var(--text-2);display:none}
.faq-item.open .faq-a{display:block}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;border-radius:var(--r-banner);overflow:hidden;
  background:var(--brand);
  background-image:linear-gradient(rgba(27,95,217,.94),rgba(19,64,152,.94)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  padding:52px 48px;color:#fff;
}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.88);max-width:620px;margin-bottom:24px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg);border-top:1px solid var(--line);margin-top:80px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:17px;color:var(--text);font-weight:700}
.footer-brand .logo-mark{width:34px;height:34px;border-radius:10px;font-size:17px}
.footer-col p{font-size:14px;line-height:1.8;color:var(--text-2)}
.footer-col h4{font-size:15px;color:var(--brand-700);margin-bottom:14px}
.footer-links li{margin-bottom:9px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:flex;flex-direction:column;gap:8px;margin-top:14px;font-size:13.5px;color:var(--text-3)}
.footer-contact i{color:var(--brand);margin-right:6px}
.footer-qr{
  border:1px dashed #C9D6E8;border-radius:var(--r-card);background:#fff;
  padding:18px;text-align:center;font-size:13.5px;color:var(--text-3);
}
.footer-qr i{display:block;font-size:30px;color:var(--brand);margin-bottom:8px}
.footer-note{font-size:13px;color:var(--text-3)}
.footer-bottom{
  margin-top:40px;border-top:1px solid var(--line);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--text-3);margin:0}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .aside-stick{position:static}
}
@media (max-width:991.98px){
  h1{font-size:32px}
  h2{font-size:25px}
  .section{padding:60px 0}
  .search-box{display:none}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .channel-row{display:none}
  .channel-row.open{display:block;position:absolute;left:0;right:0;top:68px;background:#fff;box-shadow:var(--sh-3);border-top:1px solid var(--line)}
  .channel-row.open .quick-nav{height:auto;flex-wrap:wrap;padding:12px 0 16px}
  .channel-row.open .quick-nav a{width:100%;padding:12px 14px}
  .quick-nav a.active::after{display:none}
  .media-grid{grid-template-columns:1fr}
  .scene-row{grid-template-columns:1fr 1fr}
  .scene-card:nth-child(2){margin-top:0}
  .flow-grid{grid-template-columns:1fr 1fr}
  .faq-wrap{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:40px 26px}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px}
  h1{font-size:28px;line-height:1.35}
  h2{font-size:22px}
  .section{padding:44px 0}
  .page-hero{padding:28px 0 38px}
  .brand-text{font-size:16px}
  .scene-row{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .flow-item{display:flex;gap:14px;align-items:flex-start;padding:18px}
  .flow-item::before{margin-bottom:0;flex:none}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{border-radius:14px;padding:34px 20px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category3 */
:root{
  --brand:#1B5FD9;
  --brand-700:#134098;
  --brand-050:#EEF4FF;
  --accent:#12A594;
  --accent-050:#E6F7F4;
  --warn:#E9A23B;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E4EAF3;
  --text:#172233;
  --text-2:#4A5A70;
  --text-3:#8494A8;
  --sh-1:0 1px 2px rgba(23,45,80,.05);
  --sh-2:0 6px 20px -8px rgba(23,45,80,.14);
  --sh-3:0 18px 44px -20px rgba(23,45,80,.22);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-banner:20px;
  --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%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:-.2px}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 顶部导航 ============ */
.site-header{background:#fff;position:sticky;top:0;z-index:1030;transition:box-shadow .2s ease}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.topbar{border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px}
.brand:hover{text-decoration:none}
.logo-mark{
  width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:700;flex:0 0 auto;
  box-shadow:0 6px 14px -6px rgba(27,95,217,.7);
}
.brand-text{font-size:19px;font-weight:700;color:var(--text);letter-spacing:-.3px}
.topbar-right{display:flex;align-items:center;gap:12px}
.header-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--bg);
  min-width:250px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.header-search i{color:var(--text-3);font-size:14px}
.header-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--text);font-family:inherit;
}
.header-search input::placeholder{color:var(--text-3)}
.header-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-050)}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-btn);color:var(--text);font-size:17px;align-items:center;justify-content:center;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand)}
#mobileNav{display:none}
.channel-bar{background:#fff;border-bottom:1px solid var(--line)}
.quick-nav{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;padding:6px 0}
.quick-nav::-webkit-scrollbar{display:none}
.quick-nav a{
  position:relative;flex:0 0 auto;padding:9px 16px;border-radius:9px;
  font-size:15px;font-weight:500;color:var(--text-2);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.quick-nav a:hover{background:var(--brand-050);color:var(--brand);text-decoration:none}
.quick-nav a.active{background:var(--brand-050);color:var(--brand);font-weight:600}
.quick-nav a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:-7px;height:2px;
  background:var(--brand);border-radius:2px;
}
.mobile-nav-inner{padding:8px 0 16px;display:flex;flex-direction:column;gap:6px}
.mobile-nav-inner a{padding:12px 14px;border-radius:10px;color:var(--text-2);font-size:15px}
.mobile-nav-inner a.active,.mobile-nav-inner a:hover{background:var(--brand-050);color:var(--brand);text-decoration:none}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost,.btn-light-solid,.btn-light-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-main:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);text-decoration:none}
.btn-main:active{transform:translateY(0);background:var(--brand-700)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-050);color:var(--brand);transform:translateY(-1px);text-decoration:none}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-light-solid{background:#fff;color:var(--brand-700)}
.btn-light-solid:hover{background:#EAF1FF;color:var(--brand-700);transform:translateY(-1px);text-decoration:none}
.btn-light-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-light-ghost:hover{background:rgba(255,255,255,.22);color:#fff;text-decoration:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);font-size:14px}
.text-link:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ 面包屑 ============ */
.breadcrumb-nav{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--text-3);padding:26px 0 0}
.breadcrumb-nav a{color:var(--text-2)}
.breadcrumb-nav .sep{color:var(--text-3)}
.breadcrumb-nav .current{color:var(--text-2);font-weight:500}

/* ============ 页头 ============ */
.page-head{padding:18px 0 0}
.page-head h1{font-size:clamp(26px,3.4vw,38px);line-height:1.28;letter-spacing:-.5px}
.page-lead{margin-top:12px;font-size:16px;color:var(--text-2);max-width:760px}

/* ============ 筛选条 ============ */
.filter-bar{
  margin-top:26px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:14px 16px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.chips{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.chip{
  border:1px solid var(--line);background:#fff;color:var(--text-2);
  padding:9px 16px;border-radius:999px;font-size:14px;font-weight:500;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:var(--brand-050);color:var(--brand);border-color:#CFE0FF}
.chip.active{background:var(--brand-050);color:var(--brand);border-color:#CFE0FF;font-weight:600}
.filter-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;min-width:260px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--bg);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.filter-search i{color:var(--text-3);font-size:14px}
.filter-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--text);font-family:inherit}
.filter-search input::placeholder{color:var(--text-3)}
.filter-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-050)}

/* ============ 板块通用 ============ */
.section{padding:52px 0 0}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:24px}
.section-title h2{font-size:clamp(21px,2.3vw,27px);line-height:1.35;position:relative;padding-left:14px}
.section-title h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--brand);
}
.section-title p{margin:0;font-size:14px;color:var(--text-3)}

/* ============ 状态速览 ============ */
.status-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:26px}
.status-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:20px 22px;display:flex;align-items:center;gap:14px;
  transition:box-shadow .18s ease,transform .18s ease;
}
.status-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.status-dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-050);flex:0 0 auto}
.status-card strong{display:block;font-size:16px;color:var(--text);font-weight:600}
.status-card span{font-size:13px;color:var(--text-3)}
.status-tag{
  margin-left:auto;font-size:12px;line-height:18px;padding:3px 10px;border-radius:999px;
  background:var(--accent-050);color:var(--accent);font-weight:600;white-space:nowrap;
}

/* ============ 公告卡片网格 ============ */
.notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.notice-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.notice-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#D7E3F7}
.notice-card a.card-link{display:flex;flex-direction:column;height:100%;color:inherit}
.notice-card a.card-link:hover{text-decoration:none}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-050)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.notice-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.badge-cat{
  display:inline-flex;align-items:center;font-size:12px;line-height:18px;
  padding:3px 10px;border-radius:999px;background:var(--brand-050);color:var(--brand);font-weight:600;
}
.badge-state{
  display:inline-flex;align-items:center;font-size:12px;line-height:18px;
  padding:3px 10px;border-radius:999px;background:var(--accent-050);color:var(--accent);font-weight:600;
}
.card-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:14px;line-height:22px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.card-meta i{color:var(--brand);font-size:12px}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.faq-intro h2{font-size:clamp(21px,2.3vw,27px);line-height:1.35}
.faq-intro p{margin-top:14px;font-size:15px;color:var(--text-2)}
.faq-contact{
  margin-top:22px;background:var(--brand-050);border-radius:var(--r-card);
  padding:20px;border:1px solid #DCE8FF;
}
.faq-contact strong{display:block;color:var(--text);font-size:15px;margin-bottom:6px}
.faq-contact p{font-size:14px;color:var(--text-2);margin-bottom:14px}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  margin-bottom:12px;background:#fff;box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--text);padding:18px 20px;background:#fff;
  box-shadow:none!important;border-radius:var(--r-card)!important;
}
.accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-050)}
.accordion-button::after{transition:transform .2s ease}
.accordion-button:focus{box-shadow:0 0 0 3px var(--brand-050)!important;border-color:transparent}
.accordion-body{padding:4px 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2);background:#fff}
.accordion-button:not(.collapsed)+.accordion-collapse .accordion-body{background:var(--brand-050)}

/* ============ CTA ============ */
.cta-band{
  margin-top:64px;border-radius:var(--r-banner);overflow:hidden;position:relative;
  background-color:var(--brand);
  background-image:linear-gradient(rgba(27,95,217,.93),rgba(19,64,152,.95)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:52px 48px;color:#fff;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.5vw,30px);line-height:1.35;max-width:620px}
.cta-band p{color:rgba(255,255,255,.88);margin-top:14px;font-size:16px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}

/* ============ 页脚 ============ */
.site-footer{margin-top:72px;background:var(--bg);border-top:1px solid var(--line);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{font-size:18px;color:var(--text);font-weight:700}
.footer-col p{font-size:14px;line-height:1.8;color:var(--text-2)}
.footer-col h4{font-size:15px;font-weight:700;color:var(--brand-700);margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:flex;flex-direction:column;gap:8px;margin-top:16px;font-size:14px;color:var(--text-2)}
.footer-contact i{color:var(--brand);margin-right:8px}
.footer-qr{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:18px;text-align:center;font-size:13px;color:var(--text-2);
}
.footer-qr i{display:block;font-size:30px;color:var(--brand);margin-bottom:10px}
.footer-note{font-size:13px;color:var(--text-3)}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3)}

/* ============ 入场动画 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .notice-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
}
@media (max-width:991px){
  .header-search{display:none}
  .menu-toggle{display:inline-flex}
  #mobileNav{display:block}
  .status-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:42px 32px}
  .quick-nav{padding:4px 0}
  .quick-nav a.active::after{bottom:-5px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .brand-text{font-size:17px}
  .topbar-inner{height:62px}
  .section{padding:44px 0 0}
  .notice-grid{grid-template-columns:1fr}
  .filter-bar{padding:12px}
  .filter-search{min-width:100%;width:100%}
  .section-title{margin-bottom:18px}
  .cta-band{margin-top:48px;padding:34px 22px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{padding-top:44px;margin-top:56px}
  .status-card{padding:16px 18px}
}
@media (max-width:520px){
  .page-head h1{font-size:26px}
  .cta-actions .btn-main,.cta-actions .btn-light-solid,.cta-actions .btn-light-ghost{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --brand:#1B5FD9;
  --brand-700:#134098;
  --brand-050:#EEF4FF;
  --accent:#12A594;
  --accent-050:#E6F7F4;
  --warn:#E9A23B;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E4EAF3;
  --text:#172233;
  --text-2:#4A5A70;
  --text-3:#8494A8;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-banner:20px;
  --sh-1:0 1px 2px rgba(23,45,80,.05);
  --sh-2:0 6px 20px -8px rgba(23,45,80,.14);
  --sh-3:0 18px 44px -20px rgba(23,45,80,.22);
  --ff:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--ff);
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{color:var(--text);margin:0;font-weight:700;line-height:1.35}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
img{max-width:100%;display:block}
ul{list-style:none;margin:0;padding:0}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.num{font-variant-numeric:tabular-nums;font-family:Inter,system-ui,sans-serif}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-ghost,.btn-onbrand,.btn-outline-light-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  border:1px solid transparent;text-decoration:none!important;
}
.btn-brand{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-brand:active{background:var(--brand-700);transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-050);color:var(--brand);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-onbrand{background:#fff;border-color:#fff;color:var(--brand)}
.btn-onbrand:hover{background:#EAF1FF;border-color:#EAF1FF;color:var(--brand-700);transform:translateY(-1px)}
.btn-outline-light-brand{background:transparent;border-color:rgba(255,255,255,.65);color:#fff}
.btn-outline-light-brand:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.brandbar{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text)}
.brand:hover{text-decoration:none;color:var(--text)}
.logo-mark{
  width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;letter-spacing:0;flex:0 0 auto;
  box-shadow:0 6px 16px -8px rgba(27,95,217,.7);
}
.brand-name{font-size:19px;font-weight:700;letter-spacing:-.2px;white-space:nowrap}
.top-actions{display:flex;align-items:center;gap:12px}
.search-mini{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-btn);padding:0 12px;height:42px;transition:border-color .18s ease,box-shadow .18s ease}
.search-mini:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,95,217,.12)}
.search-mini i{color:var(--text-3);font-size:14px}
.search-mini input{border:0;background:transparent;outline:none;width:180px;font-size:14px;color:var(--text)}
.search-mini input::placeholder{color:var(--text-3)}
.icon-btn{
  width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;
  color:var(--text-2);display:none;align-items:center;justify-content:center;cursor:pointer;transition:.18s ease
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-050)}

.quick-nav-wrap{position:relative;border-bottom:1px solid var(--line)}
.quick-nav{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.quick-nav::-webkit-scrollbar{display:none}
.quick-nav a{
  position:relative;flex:0 0 auto;padding:12px 16px;font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:8px 8px 0 0;transition:background .18s ease,color .18s ease
}
.quick-nav a:hover{background:var(--brand-050);color:var(--brand);text-decoration:none}
.quick-nav a.active{background:var(--brand-050);color:var(--brand);font-weight:600}
.quick-nav a.active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;background:var(--brand);border-radius:2px}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb-line{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);padding:14px 0}
.breadcrumb-line a{color:var(--text-3)}
.breadcrumb-line a:hover{color:var(--brand)}
.breadcrumb-line .sep{color:#C3CFDF}
.breadcrumb-line .current{color:var(--text-2)}

/* ---------- 首屏 ---------- */
.help-hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background:var(--brand-050) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.help-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.9) 60%,rgba(255,255,255,.94) 100%)}
.help-hero .hero-inner{position:relative;z-index:1;padding:52px 0 56px;max-width:840px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;background:var(--accent-050);color:var(--accent);
  font-size:12px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:18px
}
.help-hero h1{font-size:clamp(28px,4vw,40px);letter-spacing:-.5px;line-height:1.28;margin-bottom:14px}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:640px;margin-bottom:26px}

.search-hero{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:10px;max-width:720px;box-shadow:var(--sh-2);transition:box-shadow .18s ease,border-color .18s ease}
.search-hero:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(27,95,217,.1),var(--sh-2)}
.search-hero .s-ico{width:44px;height:44px;display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:17px;flex:0 0 auto}
.search-hero input{flex:1 1 auto;border:0;outline:none;height:44px;font-size:16px;color:var(--text);background:transparent;min-width:0}
.search-hero input::placeholder{color:var(--text-3)}
.search-label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:8px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{
  display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:7px 14px;font-size:13px;color:var(--text-2);cursor:pointer;transition:.18s ease
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-050)}
.search-hint{margin-top:14px;font-size:14px;color:var(--text-3)}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:30px}
.hero-stat strong{display:block;font-size:26px;color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums}
.hero-stat span{font-size:13px;color:var(--text-3)}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,2.6vw,28px);position:relative;padding-left:16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;background:var(--brand)}
.sec-head p{font-size:15px;color:var(--text-3);margin:8px 0 0;padding-left:16px}
.sec-head .sec-link{font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap}
.sec-head .sec-link:hover{color:var(--brand-700)}

/* ---------- FAQ 分组 ---------- */
.faq-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}
.faq-group{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .2s ease}
.faq-group:hover{box-shadow:var(--sh-2)}
.group-head{display:flex;align-items:flex-start;gap:14px;padding:22px 24px 18px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff, #FBFCFE)}
.group-ico{
  width:40px;height:40px;border-radius:11px;background:var(--brand-050);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;flex:0 0 auto
}
.group-head h3{font-size:18px;margin-bottom:4px}
.group-head .group-desc{font-size:13.5px;color:var(--text-3);line-height:1.7;margin:0}
.group-count{margin-left:auto;font-size:12px;color:var(--brand);background:var(--brand-050);border-radius:999px;padding:4px 12px;white-space:nowrap;font-weight:600}
.faq-acc .accordion-item{border:0;border-top:1px solid var(--line);background:transparent}
.faq-acc .accordion-item:first-child{border-top:0}
.faq-acc .accordion-button{
  background:transparent;color:var(--text);font-size:15.5px;font-weight:600;line-height:1.65;
  padding:17px 22px;box-shadow:none;border-radius:0;display:flex;align-items:center;gap:12px
}
.faq-acc .accordion-button:hover{background:var(--brand-050)}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-050)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-2px}
.faq-acc .accordion-button::after{
  content:"";width:9px;height:9px;margin-left:auto;flex:0 0 auto;
  border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  background-image:none;transform:rotate(45deg);transition:transform .2s ease,border-color .2s ease
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--brand)}
.faq-acc .accordion-body{padding:0 22px 22px;font-size:15px;line-height:1.9;color:var(--text-2)}

/* ---------- 未解决提示卡 ---------- */
.help-note{
  margin-top:28px;background:var(--brand-050);border:1px solid #D8E5FF;border-radius:var(--r-banner);
  padding:28px 30px;display:flex;align-items:center;gap:24px;flex-wrap:wrap
}
.help-note .note-ico{
  width:52px;height:52px;border-radius:14px;background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:20px;flex:0 0 auto;box-shadow:var(--sh-1)
}
.help-note .note-txt{flex:1 1 320px;min-width:0}
.help-note h3{font-size:19px;margin-bottom:6px}
.help-note p{font-size:14.5px;color:var(--text-2);margin:0}
.help-note .note-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 快捷入口卡 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.q-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease;display:flex;flex-direction:column
}
.q-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);text-decoration:none}
.q-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-050)}
.q-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease}
.q-card:hover .q-thumb img{transform:scale(1.03)}
.q-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.q-badge{align-self:flex-start;font-size:12px;font-weight:600;background:var(--brand-050);color:var(--brand);border-radius:999px;padding:4px 12px}
.q-card h3{font-size:18px;color:var(--text)}
.q-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0}
.q-more{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.q-card:hover .q-more{color:var(--brand-700)}

/* ---------- 页面问答卡 ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.qa-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:box-shadow .18s ease,transform .18s ease}
.qa-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.qa-card h3{font-size:16.5px;display:flex;gap:10px;align-items:flex-start;margin-bottom:10px}
.qa-card h3 i{color:var(--brand);font-size:15px;margin-top:5px}
.qa-card p{font-size:15px;color:var(--text-2);line-height:1.85;margin:0}

/* ---------- 底部 CTA ---------- */
.cta-banner{
  position:relative;overflow:hidden;border-radius:var(--r-banner);
  background:var(--brand) url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cta-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(19,64,152,.94),rgba(27,95,217,.88))}
.cta-inner{position:relative;z-index:1;padding:52px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,28px);margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.86);font-size:15.5px;margin:0;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-wrap{padding:0 0 72px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .logo-mark{width:34px;height:34px;font-size:16px;border-radius:10px}
.footer-brand strong{font-size:17px;color:var(--text);font-weight:700}
.footer-about p{font-size:14.5px;color:var(--text-2);line-height:1.85}
.footer-contact{display:flex;flex-direction:column;gap:8px;margin-top:16px;font-size:14px;color:var(--text-2)}
.footer-contact i{color:var(--brand);width:18px}
.footer-col h4{font-size:15px;color:var(--brand-700);margin-bottom:16px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand);text-decoration:none}
.footer-qr{background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:18px;font-size:13.5px;color:var(--text-3);text-align:center;display:flex;flex-direction:column;align-items:center;gap:8px}
.footer-qr i{font-size:30px;color:var(--brand)}
.footer-note{font-size:13.5px;color:var(--text-3);line-height:1.75}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3)
}
.footer-bottom p{margin:0}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .search-mini input{width:140px}
}
@media (max-width:991.98px){
  .site-header{position:static}
  .brandbar{position:sticky;top:0;z-index:1030;background:#fff}
  .quick-nav-wrap{border-top:1px solid var(--line)}
  .search-mini{display:none}
  .icon-btn{display:inline-flex}
  .faq-groups{grid-template-columns:1fr}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .section{padding:56px 0}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px}
  .brand-name{font-size:17px}
  .help-hero .hero-inner{padding:40px 0 44px}
  .search-hero{flex-wrap:wrap}
  .search-hero input{min-width:0}
  .quick-grid{grid-template-columns:1fr}
  .qa-grid{grid-template-columns:1fr}
  .cta-inner{padding:40px 24px}
  .cta-banner{border-radius:16px}
  .hero-stats{gap:20px}
  .quick-nav-wrap::after{content:"";position:absolute;right:0;top:0;bottom:0;width:26px;background:linear-gradient(90deg,rgba(255,255,255,0),#fff);pointer-events:none}
}
@media (max-width:519.98px){
  .footer-grid{grid-template-columns:1fr}
  .brand-name{font-size:16px}
  .help-note{padding:22px 20px}
  .btn-brand,.btn-ghost{width:100%}
  .note-actions .btn-brand,.note-actions .btn-ghost{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}