/* roulang page: index */
:root{
  --c-brand:#0E6BA8;
  --c-brand-600:#0B5B90;
  --c-brand-50:#EAF3FA;
  --c-accent:#0FA48A;
  --c-accent-50:#E7F6F2;
  --c-warn:#C97A15;
  --c-ink:#0F1B2A;
  --c-ink-2:#4A5A6E;
  --c-ink-3:#7A8899;
  --c-line:#E6EBF2;
  --c-bg:#F7F9FC;
  --c-card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-fig:18px;
  --sh-1:0 1px 2px rgba(15,27,42,.05),0 10px 26px -18px rgba(15,27,42,.18);
  --sh-2:0 2px 6px rgba(15,27,42,.07),0 18px 40px -20px rgba(15,27,42,.24);
  --t:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--t);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-white{background:#fff;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px;flex-wrap:wrap;}
.section-title{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:0;}
.section-desc{margin-top:12px;max-width:660px;font-size:16px;color:var(--c-ink-2);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-brand);background:var(--c-brand-50);border-radius:999px;padding:5px 14px;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:70;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:0 1px 2px rgba(15,27,42,.04);}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--c-brand-50);display:grid;place-items:center;color:var(--c-brand);flex-shrink:0;}
.brand-text{font-size:17px;font-weight:600;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{position:relative;display:inline-block;padding:8px 12px;font-size:15px;color:var(--c-ink-2);border-radius:8px;transition:color var(--t),background var(--t);}
.nav-link::after{content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;background:var(--c-brand);border-radius:2px;transform:translateX(-50%);transition:width var(--t);}
.nav-link:hover{color:var(--c-brand);}
.nav-link:hover::after,.nav-link.is-active::after{width:60%;}
.nav-link.is-active{color:var(--c-brand);font-weight:600;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;border:1px solid var(--c-line);border-radius:var(--r-input);background:var(--c-bg);transition:border-color var(--t),background var(--t),box-shadow var(--t);}
.search-box:focus-within{border-color:var(--c-brand);background:#fff;box-shadow:0 0 0 3px var(--c-brand-50);}
.search-box svg{color:var(--c-ink-3);flex-shrink:0;}
.search-box input{width:132px;border:0;background:transparent;outline:none;font-size:14px;}
.search-box input::placeholder{color:var(--c-ink-3);}
.menu-toggle{display:none;width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--r-btn);place-items:center;color:var(--c-ink-2);transition:all var(--t);}
.menu-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-50);}
.mobile-drawer{display:none;border-top:1px solid var(--c-line);background:#fff;padding:14px 0 20px;}
.mobile-drawer.is-open{display:block;}
.drawer-nav{display:grid;gap:4px;}
.drawer-nav a{display:block;padding:11px 12px;border-radius:10px;font-size:15px;color:var(--c-ink-2);}
.drawer-nav a:hover{background:var(--c-brand-50);color:var(--c-brand);}
.drawer-nav a.is-active{background:var(--c-brand-50);color:var(--c-brand);font-weight:600;}
.drawer-cta{margin-top:14px;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);font-size:15px;font-weight:600;white-space:nowrap;cursor:pointer;transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);}
.btn-primary{background:var(--c-brand);color:#fff;}
.btn-primary:hover{background:var(--c-brand-600);transform:translateY(-1px);}
.btn-primary:active{transform:none;}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-50);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:50px;padding:0 30px;font-size:16px;}
.link-arrow{display:inline-flex;align-items:center;gap:5px;color:var(--c-brand);font-size:14px;font-weight:600;}
.link-arrow span{transition:transform var(--t);}
.link-arrow:hover span{transform:translateX(3px);}

/* Hero */
.hero{position:relative;overflow:hidden;padding:76px 0 92px;background:var(--c-bg);}
.hero-shape{position:absolute;width:520px;height:520px;border-radius:64px;background:var(--c-brand-50);transform:rotate(14deg);top:-200px;right:-170px;opacity:.85;}
.hero-shape-2{position:absolute;width:260px;height:260px;border-radius:48px;background:var(--c-accent-50);transform:rotate(-10deg);bottom:-150px;left:-110px;opacity:.8;}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.hero h1{margin-top:18px;font-size:clamp(30px,4.4vw,44px);line-height:1.25;font-weight:700;letter-spacing:0;}
.hero-sub{margin-top:18px;max-width:520px;font-size:17px;color:var(--c-ink-2);}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 0;margin-top:32px;font-size:14px;color:var(--c-ink-2);}
.hero-trust li{display:flex;align-items:center;gap:7px;padding:0 16px;border-left:1px solid var(--c-line);}
.hero-trust li:first-child{padding-left:0;border-left:0;}
.hero-trust svg{color:var(--c-accent);flex-shrink:0;}
.hero-media{position:relative;border-radius:var(--r-fig);overflow:hidden;aspect-ratio:16/10;background:var(--c-brand-50);box-shadow:var(--sh-1);}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease;}
.hero-media:hover img{transform:scale(1.03);}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(14,107,168,.08);pointer-events:none;}
.hero-media-tag{position:absolute;left:20px;bottom:20px;z-index:2;background:rgba(255,255,255,.94);border-radius:12px;padding:12px 16px;box-shadow:var(--sh-1);font-size:13px;color:var(--c-ink-2);}
.hero-media-tag strong{display:block;font-size:15px;color:var(--c-ink);font-weight:600;}

/* 卖点非对称网格 */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8E4EF;}
.feature-main{padding:28px;display:flex;flex-direction:column;}
.feature-main h3{font-size:20px;font-weight:600;margin-bottom:12px;}
.feature-main p{font-size:15px;color:var(--c-ink-2);}
.feature-media{margin-top:22px;border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:var(--c-brand-50);}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-side{display:grid;gap:24px;align-content:stretch;}
.feature-card{padding:24px;display:flex;gap:16px;align-items:flex-start;}
.feature-icon{width:42px;height:42px;border-radius:12px;background:var(--c-brand-50);color:var(--c-brand);display:grid;place-items:center;flex-shrink:0;}
.feature-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.feature-card p{font-size:14px;color:var(--c-ink-2);}

/* 步骤 */
.steps{display:grid;}
.step{display:grid;grid-template-columns:72px 1fr 300px;gap:28px;align-items:center;padding:32px 0;border-bottom:1px dashed var(--c-line);}
.step:last-child{border-bottom:0;}
.step.reverse{grid-template-columns:72px 300px 1fr;}
.step.reverse .step-media{order:-1;}
.step.reverse .step-body{order:1;}
.step-num{font-size:40px;font-weight:700;color:var(--c-accent);line-height:1;letter-spacing:-.02em;}
.step-body h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.step-body p{font-size:15px;color:var(--c-ink-2);}
.step-body ul{margin-top:14px;display:grid;gap:8px;}
.step-body li{position:relative;padding-left:18px;font-size:14px;color:var(--c-ink-2);}
.step-body li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--c-brand);}
.step-media{border-radius:12px;overflow:hidden;aspect-ratio:4/3;background:var(--c-brand-50);box-shadow:var(--sh-1);}
.step-media img{width:100%;height:100%;object-fit:cover;}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.news-side{display:grid;gap:20px;}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t);height:100%;}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8E4EF;}
.news-card-lg{padding:0;}
.news-card-lg .news-media{aspect-ratio:16/9;background:var(--c-brand-50);overflow:hidden;}
.news-card-lg .news-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease;}
.news-card-lg:hover .news-media img{transform:scale(1.03);}
.news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.tag{display:inline-flex;align-items:center;align-self:flex-start;font-size:12px;font-weight:600;color:var(--c-accent);background:var(--c-accent-50);border-radius:999px;padding:3px 10px;}
.news-title{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--c-brand);}
.news-excerpt{font-size:14px;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-ink-3);}
.news-card-sm{flex-direction:row;gap:16px;padding:20px;align-items:flex-start;}
.news-card-sm .news-thumb{width:96px;aspect-ratio:4/3;border-radius:10px;overflow:hidden;background:var(--c-brand-50);flex-shrink:0;}
.news-card-sm .news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-card-sm .news-body{padding:0;gap:9px;}
.news-card-sm .news-title{font-size:16px;}
.empty-state{background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);padding:56px 24px;text-align:center;color:var(--c-ink-2);font-size:15px;}
.empty-state .empty-icon{width:52px;height:52px;margin:0 auto 16px;border-radius:14px;background:var(--c-brand-50);color:var(--c-brand);display:grid;place-items:center;}

/* 数据与引述 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:24px;}
.stat{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);}
.stat-num{font-size:32px;font-weight:700;color:var(--c-brand);line-height:1.2;}
.stat-label{margin-top:6px;font-size:14px;color:var(--c-ink-2);}
.quote-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.quote-main{background:var(--c-ink);color:#DCE5EE;border-radius:var(--r-card);padding:32px;display:flex;flex-direction:column;justify-content:space-between;gap:24px;}
.quote-main p{font-size:18px;line-height:1.75;}
.quote-main .quote-from{font-size:13px;color:#8FA2B6;}
.quote-side{display:grid;gap:24px;}
.quote-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.quote-card p{font-size:15px;color:var(--c-ink-2);}
.quote-card .quote-from{margin-top:12px;font-size:13px;color:var(--c-ink-3);}

/* FAQ */
.faq-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;padding:20px 24px;text-align:left;font-size:16px;font-weight:600;transition:background var(--t);}
.faq-q:hover{background:var(--c-brand-50);}
.faq-icon{width:28px;height:28px;border-radius:50%;background:var(--c-brand-50);color:var(--c-brand);display:grid;place-items:center;font-size:17px;line-height:1;flex-shrink:0;transition:background var(--t),color var(--t),transform var(--t);}
.faq-item.is-open .faq-icon{background:var(--c-brand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease;}
.faq-a-inner{padding:0 56px 22px 24px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}

/* CTA 与页脚 */
.cta-band{background:var(--c-brand-50);border-radius:var(--r-fig);padding:48px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;}
.cta-band p{margin-top:12px;font-size:15px;color:var(--c-ink-2);max-width:560px;}
.site-footer{background:var(--c-ink);color:#C3CEDA;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;}
.footer-mark{background:rgba(255,255,255,.1);color:#8FD0F0;}
.footer-note{margin-top:16px;font-size:14px;line-height:1.8;color:#93A6B9;max-width:320px;}
.footer-title{margin-bottom:16px;font-size:15px;font-weight:600;color:#fff;}
.footer-links{display:grid;gap:10px;}
.footer-links a,.footer-links li{font-size:14px;color:#93A6B9;}
.footer-links a:hover{color:#fff;}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8296AA;}

/* 移动端固定转化条 */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:80;display:none;align-items:center;justify-content:space-between;gap:16px;height:64px;padding:0 16px;background:#fff;border-top:1px solid var(--c-line);box-shadow:0 -8px 24px -14px rgba(15,27,42,.3);}
.mobile-bar span{font-size:13px;color:var(--c-ink-2);}

@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .header-inner{gap:16px;}
  .main-nav{margin-left:0;}
  .nav-link{padding:8px 9px;font-size:14px;}
  .search-box input{display:none;}
  .search-box{padding:0 10px;}
  .hero{padding:56px 0 72px;}
  .hero-grid{gap:36px;}
  .step,.step.reverse{grid-template-columns:60px 1fr;gap:20px;}
  .step-media,.step.reverse .step-media{order:0;grid-column:2;max-width:420px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .main-nav{display:none;}
  .menu-toggle{display:grid;}
}
@media (max-width:768px){
  body{padding-bottom:64px;}
  .mobile-bar{display:flex;}
  .section{padding:56px 0;}
  .hero{padding:44px 0 60px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-sub{font-size:16px;}
  .hero-trust{gap:8px 0;}
  .hero-trust li{padding:0 12px;}
  .feature-grid,.news-grid,.quote-grid{grid-template-columns:1fr;}
  .step,.step.reverse{grid-template-columns:1fr;gap:14px;padding:26px 0;}
  .step-media,.step.reverse .step-media{grid-column:1;margin-top:6px;}
  .stats{grid-template-columns:1fr 1fr;gap:16px;}
  .cta-band{padding:32px 24px;}
  .news-card-sm .news-thumb{width:96px;}
  .faq-a-inner{padding:0 24px 20px 24px;}
  .quote-main p{font-size:16px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .brand-text{font-size:15px;}
  .stats{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .news-card-sm{flex-direction:column;}
  .news-card-sm .news-thumb{width:100%;aspect-ratio:16/9;}
  .hero-trust li{width:100%;padding:0;border-left:0;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
  .card:hover,.news-card:hover,.quote-card:hover,.btn-primary:hover{transform:none;}
  .hero-media:hover img,.news-card-lg:hover .news-media img{transform:none;}
}

/* roulang page: article */
:root{
  --c-brand:#0E6BA8;
  --c-brand-600:#0B5B90;
  --c-brand-50:#EAF3FA;
  --c-accent:#0FA48A;
  --c-accent-50:#E7F6F2;
  --c-warn:#C97A15;
  --c-ink:#0F1B2A;
  --c-ink-2:#4A5A6E;
  --c-ink-3:#7A8899;
  --c-line:#E6EBF2;
  --c-bg:#F7F9FC;
  --c-card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-lg:18px;
  --sh-1:0 1px 2px rgba(15,27,42,.05), 0 10px 26px -18px rgba(15,27,42,.18);
  --sh-2:0 2px 6px rgba(15,27,42,.07), 0 18px 40px -20px rgba(15,27,42,.24);
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease, background-color .18s ease, border-color .18s ease;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 1px 2px rgba(15,27,42,.04);
}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-brand-50);color:var(--c-brand);
  flex-shrink:0;
}
.brand-mark svg{width:17px;height:17px;}
.brand-text{font-size:17px;font-weight:600;color:var(--c-ink);white-space:nowrap;}
.brand:hover .brand-text{color:var(--c-brand);}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;min-width:0;}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:14.5px;
  color:var(--c-ink-2);
  white-space:nowrap;
  border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%) scaleX(0);
  width:60%;height:2px;border-radius:2px;background:var(--c-brand);
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--c-brand);background:var(--c-brand-50);}
.nav-link:hover::after,.nav-link.is-active::after{transform:translateX(-50%) scaleX(1);}
.nav-link.is-active{color:var(--c-brand);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 12px;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  transition:border-color .18s ease, box-shadow .18s ease, background-color .18s ease;
}
.search-box svg{width:16px;height:16px;color:var(--c-ink-3);flex-shrink:0;}
.search-box input{
  border:none;background:transparent;outline:none;
  width:140px;font-size:14px;
}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box:focus-within{border-color:var(--c-brand);background:#fff;box-shadow:0 0 0 3px rgba(14,107,168,.12);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);align-items:center;justify-content:center;
  color:var(--c-ink-2);background:#fff;
}
.nav-toggle svg{width:20px;height:20px;}
.nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);}
.mobile-drawer{display:none;border-top:1px solid var(--c-line);background:#fff;padding:14px 0 20px;}
.mobile-drawer.is-open{display:block;}
.drawer-title{font-size:12.5px;color:var(--c-ink-3);letter-spacing:.06em;margin-bottom:8px;}
.drawer-link{display:block;padding:11px 12px;border-radius:10px;font-size:15px;color:var(--c-ink-2);}
.drawer-link:hover{background:var(--c-brand-50);color:var(--c-brand);}
.drawer-link.is-active{background:var(--c-brand-50);color:var(--c-brand);font-weight:600;}
.drawer-cta{margin-top:14px;width:100%;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:all .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-brand);color:#fff;border:1px solid var(--c-brand);}
.btn-primary:hover{background:var(--c-brand-600);border-color:var(--c-brand-600);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--c-ink);border:1px solid var(--c-line);}
.btn-outline:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-50);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.link-cta{display:inline-flex;align-items:center;gap:6px;color:var(--c-brand);font-size:14.5px;font-weight:600;}
.link-cta svg{width:15px;height:15px;transition:transform .18s ease;}
.link-cta:hover svg{transform:translateX(2px);}

/* ---------- article head ---------- */
.article-head{padding:34px 0 0;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-3);flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--c-brand);}
.breadcrumb .sep{color:#C7D1DD;}
.breadcrumb .current{color:var(--c-ink-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title-wrap{max-width:820px;margin-top:20px;}
.article-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:var(--c-accent-50);color:var(--c-accent);
  font-size:12.5px;font-weight:600;margin-bottom:14px;
}
.article-title{
  font-size:clamp(26px,3.6vw,38px);
  line-height:1.3;font-weight:700;color:var(--c-ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:20px;padding-bottom:26px;
  font-size:14px;color:var(--c-ink-3);
  border-bottom:1px solid var(--c-line);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;}
.article-meta svg{width:15px;height:15px;color:#A9B6C4;}

/* ---------- article body ---------- */
.article-section{padding:40px 0 24px;}
.article-layout{max-width:760px;margin:0 auto;}
.article-body{font-size:16px;line-height:1.85;color:var(--c-ink-2);}
.article-body h2{
  font-size:26px;line-height:1.4;font-weight:700;color:var(--c-ink);
  margin:38px 0 14px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1em;
  border-radius:2px;background:var(--c-brand);
}
.article-body h3{font-size:19px;font-weight:600;color:var(--c-ink);margin:28px 0 12px;}
.article-body h4{font-size:16.5px;font-weight:600;color:var(--c-ink);margin:22px 0 10px;}
.article-body p{margin:0 0 16px;}
.article-body strong{color:var(--c-ink);font-weight:600;}
.article-body a{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--c-brand-600);}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul li{list-style:disc;margin-bottom:9px;}
.article-body ol li{list-style:decimal;margin-bottom:9px;}
.article-body li::marker{color:var(--c-brand);}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  border-left:3px solid var(--c-brand);
  background:var(--c-brand-50);
  border-radius:0 10px 10px 0;
  color:var(--c-ink);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:22px 0 10px;width:100%;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--c-brand-50);color:var(--c-ink);font-weight:600;}
.article-body code{
  background:#F1F5F9;border-radius:6px;padding:2px 6px;
  font-size:14px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:#25415C;
}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:32px 0;}
.article-body > *:first-child{margin-top:0;}

.empty-state{
  padding:56px 28px;text-align:center;
  background:var(--c-card);border:1px dashed var(--c-line);border-radius:var(--r-card);
}
.empty-state .icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;
  background:var(--c-brand-50);color:var(--c-brand);
  display:flex;align-items:center;justify-content:center;
}
.empty-state .icon svg{width:26px;height:26px;}
.empty-state h2{font-size:19px;font-weight:600;color:var(--c-ink);margin-bottom:8px;}
.empty-state p{font-size:14.5px;color:var(--c-ink-3);margin-bottom:20px;}

/* ---------- tags ---------- */
.tag-section{padding:8px 0 44px;}
.tag-inner{max-width:760px;margin:0 auto;}
.tag-label{font-size:13px;color:var(--c-ink-3);margin-bottom:12px;letter-spacing:.04em;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;
  padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);
  font-size:13.5px;color:var(--c-ink-2);
}
.tag:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-50);}

/* ---------- related ---------- */
.related-section{padding:8px 0 72px;}
.related-inner{max-width:760px;margin:0 auto;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;}
.section-head h2{font-size:22px;font-weight:700;color:var(--c-ink);}
.related-list{display:grid;gap:14px;}
.related-card{
  display:flex;gap:16px;align-items:center;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--sh-1);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D7E2EC;}
.related-thumb{
  width:132px;flex-shrink:0;aspect-ratio:4/3;border-radius:10px;overflow:hidden;background:var(--c-brand-50);
}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease;}
.related-card:hover .related-thumb img{transform:scale(1.03);}
.related-body{min-width:0;}
.related-cat{font-size:12.5px;color:var(--c-accent);background:var(--c-accent-50);border-radius:999px;padding:3px 10px;display:inline-block;margin-bottom:8px;}
.related-title{font-size:16.5px;font-weight:600;color:var(--c-ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-card:hover .related-title{color:var(--c-brand);}
.related-desc{font-size:13.5px;color:var(--c-ink-3);margin-top:6px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- cta ---------- */
.cta-section{padding:0 0 80px;}
.cta-band{
  background:var(--c-brand-50);
  border:1px solid #D5E6F3;
  border-radius:var(--r-lg);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:24px;font-weight:700;color:var(--c-ink);margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--c-ink-2);max-width:600px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:#B9C6D4;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16.5px;font-weight:600;margin-bottom:14px;}
.footer-mark{width:26px;height:26px;border-radius:8px;background:rgba(255,255,255,.1);color:#6FC7E8;}
.footer-note{font-size:13.5px;line-height:1.75;color:#8FA0B2;max-width:320px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:#A9B8C8;}
.footer-links a:hover{color:#fff;}
.footer-links span{font-size:14px;color:#A9B8C8;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8595A6;
}

/* ---------- mobile cta ---------- */
.mobile-cta{display:none;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .search-box{display:none;}
  .main-nav{gap:2px;}
  .nav-link{padding:8px 9px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .header-inner{height:60px;gap:14px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-text{font-size:16px;}
  body{padding-bottom:64px;}
  .article-head{padding-top:22px;}
  .article-title-wrap{margin-top:16px;}
  .article-meta{margin-top:16px;padding-bottom:20px;gap:8px 16px;}
  .article-section{padding:28px 0 16px;}
  .article-body h2{font-size:22px;margin-top:30px;}
  .article-body h3{font-size:17.5px;}
  .tag-section{padding-bottom:34px;}
  .related-section{padding-bottom:52px;}
  .related-card{gap:12px;padding:14px;}
  .related-thumb{width:96px;aspect-ratio:1/1;}
  .related-title{font-size:15.5px;}
  .related-desc{display:none;}
  .cta-section{padding-bottom:56px;}
  .cta-band{padding:28px 22px;border-radius:16px;}
  .cta-band h2{font-size:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .site-footer{padding:48px 0 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-note{max-width:none;}
  .footer-bottom{margin-top:32px;flex-direction:column;gap:8px;}
  .mobile-cta{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    height:64px;padding:0 20px;
    background:#fff;border-top:1px solid var(--c-line);
    box-shadow:0 -6px 20px -12px rgba(15,27,42,.28);
  }
  .mobile-cta .tip{font-size:13px;color:var(--c-ink-2);}
  .mobile-cta .btn{height:42px;padding:0 18px;font-size:14px;}
}
@media (max-width:520px){
  .breadcrumb .current{max-width:180px;}
  .footer-grid{grid-template-columns:1fr;}
  .related-thumb{width:82px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .related-card:hover{transform:none;}
}

/* roulang page: category1 */
:root{
    --c-brand:#0E6BA8;
    --c-brand-600:#0B5B90;
    --c-brand-50:#EAF3FA;
    --c-accent:#0FA48A;
    --c-accent-50:#E7F6F2;
    --c-warn:#C97A15;
    --c-ink:#0F1B2A;
    --c-ink-2:#4A5A6E;
    --c-ink-3:#7A8899;
    --c-line:#E6EBF2;
    --c-bg:#F7F9FC;
    --c-card:#FFFFFF;
    --r-card:14px;
    --r-btn:10px;
    --r-input:10px;
    --r-img:18px;
    --sh-1:0 1px 2px rgba(15,27,42,.05), 0 10px 26px -18px rgba(15,27,42,.18);
    --sh-2:0 2px 6px rgba(15,27,42,.07), 0 18px 40px -20px rgba(15,27,42,.24);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--c-bg);
    color:var(--c-ink);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Helvetica,Arial,sans-serif;
    font-size:16px;
    line-height:1.75;
    letter-spacing:0;
    font-weight:400;
  }
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
  ul,ol{list-style:none}
  .num{font-variant-numeric:tabular-nums}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
  .section{padding:88px 0}
  .section-tight{padding:64px 0}
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:#fff;
    border-bottom:1px solid var(--c-line);
    box-shadow:0 1px 2px rgba(15,27,42,.04);
  }
  .header-inner{display:flex;align-items:center;gap:24px;height:68px}
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:28px;height:28px;border-radius:9px;
    background:var(--c-brand-50);color:var(--c-brand);
    display:grid;place-items:center;flex:0 0 28px;
  }
  .brand-text{font-size:17px;font-weight:600;color:var(--c-ink);white-space:nowrap}
  .main-nav{display:flex;align-items:center;gap:2px;margin-left:8px}
  .nav-link{
    position:relative;display:inline-block;
    padding:8px 12px;border-radius:8px;
    font-size:15px;color:var(--c-ink-2);
    transition:color 180ms ease, background-color 180ms ease;
    white-space:nowrap;
  }
  .nav-link:hover{color:var(--c-brand);background:var(--c-brand-50)}
  .nav-link.is-active{color:var(--c-brand);font-weight:600}
  .nav-link.is-active::after{
    content:"";position:absolute;left:22%;right:22%;bottom:1px;height:2px;
    background:var(--c-brand);border-radius:2px;
  }
  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
  .search-box{position:relative}
  .search-box input{
    width:208px;height:40px;
    padding:0 14px 0 38px;
    border:1px solid var(--c-line);border-radius:var(--r-input);
    background:#fff;color:var(--c-ink);font-size:14px;
    transition:border-color 180ms ease, box-shadow 180ms ease;
  }
  .search-box input::placeholder{color:var(--c-ink-3)}
  .search-box input:focus{
    outline:none;border-color:var(--c-brand);
    box-shadow:0 0 0 3px rgba(14,107,168,.12);
  }
  .search-box .search-icon{
    position:absolute;left:12px;top:50%;transform:translateY(-50%);
    color:var(--c-ink-3);pointer-events:none;
  }
  .nav-toggle{
    display:none;width:42px;height:42px;
    border:1px solid var(--c-line);border-radius:var(--r-btn);
    background:#fff;color:var(--c-ink);
    align-items:center;justify-content:center;cursor:pointer;
    transition:border-color 180ms ease,color 180ms ease;
  }
  .nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand)}

  .mobile-drawer{
    display:none;
    border-top:1px solid var(--c-line);
    background:#fff;
    padding:16px 20px 24px;
  }
  .mobile-drawer.is-open{display:block}
  .drawer-group-title{
    font-size:12px;letter-spacing:.08em;color:var(--c-ink-3);
    text-transform:uppercase;margin:12px 0 6px;
  }
  .drawer-link{
    display:block;padding:12px 12px;border-radius:10px;
    font-size:15px;color:var(--c-ink-2);
  }
  .drawer-link.is-active{color:var(--c-brand);background:var(--c-brand-50);font-weight:600}
  .drawer-cta{margin-top:14px;width:100%;justify-content:center}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 24px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1;
    border:1px solid transparent;cursor:pointer;
    transition:background-color 180ms ease,color 180ms ease,border-color 180ms ease,transform 180ms ease,box-shadow 180ms ease;
  }
  .btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--sh-1)}
  .btn-primary:hover{background:var(--c-brand-600);transform:translateY(-1px);box-shadow:var(--sh-2)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
  .btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-50)}
  .btn-sm{height:40px;padding:0 18px;font-size:14px}
  .btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
    outline:2px solid var(--c-brand);outline-offset:2px;
  }
  .link-cta{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--c-brand);font-size:14px;font-weight:600;
  }
  .link-cta svg{transition:transform 180ms ease}
  .link-cta:hover svg{transform:translateX(2px)}

  /* ============ 通用标签 / 标题 ============ */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;
    background:var(--c-accent-50);color:#0B7D69;
    font-size:12.5px;font-weight:600;letter-spacing:.02em;
  }
  .badge-brand{background:var(--c-brand-50);color:var(--c-brand)}
  .h1{font-size:clamp(30px,4.4vw,44px);line-height:1.25;font-weight:700}
  .h2{font-size:clamp(23px,2.4vw,30px);line-height:1.35;font-weight:700}
  .h3{font-size:19px;line-height:1.5;font-weight:600}
  .lead{font-size:17px;line-height:1.8;color:var(--c-ink-2)}
  .muted{color:var(--c-ink-2);font-size:15px;line-height:1.8}
  .meta{color:var(--c-ink-3);font-size:13px;line-height:1.6}

  /* ============ 面包屑 ============ */
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:14px;color:var(--c-ink-3);padding:22px 0 0;
  }
  .breadcrumb a{color:var(--c-ink-3);transition:color 160ms ease}
  .breadcrumb a:hover{color:var(--c-brand)}
  .crumb-current{color:var(--c-ink-2)}

  /* ============ Hero ============ */
  .hero{
    position:relative;overflow:hidden;
    background:var(--c-bg);
    padding:24px 0 72px;
  }
  .hero-deco{
    position:absolute;right:-160px;top:-120px;
    width:520px;height:520px;border-radius:50%;
    background:var(--c-brand-50);opacity:.9;pointer-events:none;
  }
  .hero-grid{
    position:relative;
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:48px;align-items:center;
    padding-top:32px;
  }
  .hero-title{margin:16px 0 0;color:var(--c-ink)}
  .hero-sub{margin-top:16px;font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:560px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .hero-points{
    display:flex;flex-wrap:wrap;align-items:center;gap:0 18px;
    margin-top:30px;font-size:14px;color:var(--c-ink-2);
  }
  .hero-points li{display:flex;align-items:center;gap:6px;padding-right:18px;border-right:1px solid var(--c-line)}
  .hero-points li:last-child{border-right:0;padding-right:0}
  .hero-points svg{color:var(--c-accent);flex:0 0 auto}
  .hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);background:var(--c-brand-50)}
  .hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 220ms ease}
  .hero-media:hover img{transform:scale(1.03)}
  .hero-media::after{
    content:"";position:absolute;inset:0;
    background:rgba(255,255,255,.08);
  }

  /* ============ 主体两栏 ============ */
  .page-grid{
    display:grid;grid-template-columns:minmax(0,1fr) 280px;
    gap:40px;align-items:start;
  }
  .side{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px}

  .block + .block{margin-top:64px}
  .block-head{max-width:720px;margin-bottom:28px}
  .block-desc{margin-top:12px;color:var(--c-ink-2);font-size:15.5px;line-height:1.8}

  /* ============ 卡片 ============ */
  .card{
    background:var(--c-card);border:1px solid var(--c-line);
    border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);
    transition:transform 200ms ease, box-shadow 200ms ease;
  }
  .card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
  .card-title{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px}
  .card .media{border-radius:10px;overflow:hidden;background:var(--c-brand-50);margin-bottom:18px}
  .card .media img{width:100%;aspect-ratio:16/9;object-fit:cover}

  .prep-grid{
    display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);
    gap:24px;
  }
  .card-lead{grid-row:span 2;display:flex;flex-direction:column}
  .card-lead .media img{aspect-ratio:4/3}
  .card-side{display:flex;gap:18px;align-items:flex-start}
  .card-side .side-icon{
    flex:0 0 40px;width:40px;height:40px;border-radius:11px;
    background:var(--c-brand-50);color:var(--c-brand);
    display:grid;place-items:center;
  }
  .card-side .card-title{font-size:16.5px;margin-bottom:6px}

  .dot-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
  .dot-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--c-ink-2);line-height:1.7}
  .dot-list li::before{
    content:"";position:absolute;left:0;top:9px;
    width:6px;height:6px;border-radius:50%;background:var(--c-accent);
  }

  /* ============ 时间轴 ============ */
  .timeline{position:relative;margin-top:8px}
  .tl-item{position:relative;padding:0 0 34px 66px}
  .tl-item::before{
    content:"";position:absolute;left:21px;top:48px;bottom:2px;
    width:1px;background:var(--c-line);
  }
  .tl-item:last-child::before{display:none}
  .tl-item:last-child{padding-bottom:0}
  .tl-num{
    position:absolute;left:0;top:0;
    width:44px;height:44px;border-radius:50%;
    background:#fff;border:1px solid var(--c-line);
    display:grid;place-items:center;
    color:var(--c-brand);font-weight:700;font-size:15px;
    font-variant-numeric:tabular-nums;
    box-shadow:var(--sh-1);
  }
  .tl-title{font-size:17.5px;font-weight:600;line-height:1.5}
  .tl-text{margin-top:8px;font-size:15px;line-height:1.8;color:var(--c-ink-2);max-width:640px}
  .tl-tag{
    display:inline-block;margin-top:12px;padding:4px 10px;border-radius:999px;
    background:var(--c-brand-50);color:var(--c-brand);font-size:12.5px;font-weight:600;
  }

  /* ============ 图文交替 ============ */
  .alt-row{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:32px;align-items:center;
  }
  .alt-row + .alt-row{margin-top:40px}
  .alt-row.reverse .alt-media{order:2}
  .alt-media{border-radius:var(--r-img);overflow:hidden;background:var(--c-brand-50);box-shadow:var(--sh-1)}
  .alt-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 220ms ease}
  .alt-media:hover img{transform:scale(1.03)}
  .alt-copy h3{font-size:20px;font-weight:600;line-height:1.5}
  .alt-copy p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-ink-2)}
  .alt-copy .dot-list{margin-top:16px}

  /* ============ 核对清单 ============ */
  .check-list{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:14px;margin-top:24px;
  }
  .check-item{
    display:flex;gap:12px;align-items:flex-start;
    background:var(--c-card);border:1px solid var(--c-line);
    border-radius:var(--r-card);padding:18px 20px;
    transition:border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
  }
  .check-item:hover{border-color:#CFE0EE;transform:translateY(-2px);box-shadow:var(--sh-1)}
  .check-box{
    flex:0 0 20px;width:20px;height:20px;margin-top:3px;
    border-radius:6px;border:1.5px solid var(--c-accent);
    background:var(--c-accent-50);color:#0B7D69;
    display:grid;place-items:center;
  }
  .check-item span{font-size:15px;line-height:1.7;color:var(--c-ink-2)}

  /* ============ FAQ ============ */
  .faq{border-top:1px solid var(--c-line);margin-top:8px}
  .faq-item{border-bottom:1px solid var(--c-line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 0;background:none;border:0;cursor:pointer;text-align:left;
    font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
  }
  .faq-q:hover{color:var(--c-brand)}
  .faq-icon{
    flex:0 0 28px;width:28px;height:28px;border-radius:50%;
    background:var(--c-brand-50);color:var(--c-brand);
    display:grid;place-items:center;font-size:17px;font-weight:600;line-height:1;
    transition:background-color 180ms ease;
  }
  .faq-a{display:none;padding:0 32px 22px 0;font-size:15px;line-height:1.8;color:var(--c-ink-2)}
  .faq-item.is-open .faq-a{display:block}
  .faq-item.is-open .faq-q{color:var(--c-brand)}
  .faq-item.is-open .faq-icon{background:var(--c-brand);color:#fff}

  /* ============ 侧栏 ============ */
  .side-card{
    background:var(--c-card);border:1px solid var(--c-line);
    border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);
  }
  .side-title{font-size:15.5px;font-weight:600;margin-bottom:14px}
  .side-links{display:flex;flex-direction:column;gap:10px}
  .side-links a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:11px 14px;border:1px solid var(--c-line);border-radius:var(--r-btn);
    font-size:14px;color:var(--c-ink-2);
    transition:border-color 180ms ease,color 180ms ease,background-color 180ms ease;
  }
  .side-links a:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-50)}
  .side-faq{display:flex;flex-direction:column;gap:14px}
  .side-faq dt{font-size:14.5px;font-weight:600;color:var(--c-ink);line-height:1.6}
  .side-faq dd{margin:6px 0 0;font-size:13.8px;line-height:1.75;color:var(--c-ink-2)}
  .side-note{
    border-radius:var(--r-card);padding:20px;
    background:var(--c-brand-50);border:1px solid #D8E7F3;
  }
  .side-note h3{font-size:15.5px;font-weight:600;color:var(--c-brand)}
  .side-note p{margin-top:8px;font-size:13.8px;line-height:1.75;color:var(--c-ink-2)}
  .side-note .btn{margin-top:14px;width:100%;justify-content:center}

  /* ============ 宽幅 CTA ============ */
  .cta-band{
    margin-top:72px;background:var(--c-brand-50);
    border:1px solid #D8E7F3;border-radius:var(--r-img);
    padding:40px 44px;
    display:flex;align-items:center;justify-content:space-between;gap:28px;
  }
  .cta-band h2{font-size:24px;font-weight:700;line-height:1.4;color:var(--c-ink)}
  .cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--c-ink-2);max-width:640px}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--c-ink);color:#C6D2DF;margin-top:88px}
  .footer-grid{
    display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;
    gap:40px;padding:64px 0 40px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16.5px;font-weight:600}
  .footer-mark{background:rgba(255,255,255,.08);color:#7FC8EE}
  .footer-note{margin-top:14px;font-size:14px;line-height:1.8;color:#9FB0C2;max-width:320px}
  .footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
  .footer-links{display:flex;flex-direction:column;gap:11px}
  .footer-links a,.footer-links li{font-size:14px;color:#9FB0C2;line-height:1.7;transition:color 160ms ease}
  .footer-links a:hover{color:#fff}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    border-top:1px solid rgba(255,255,255,.1);
    padding:20px 0 28px;font-size:13.5px;color:#8FA1B4;
  }

  /* ============ 移动端固定转化条 ============ */
  .mobile-bar{display:none}

  /* ============ 响应式 ============ */
  @media (max-width:1280px){
    .search-box input{width:170px}
  }
  @media (max-width:1024px){
    .container{padding:0 24px}
    .section{padding:64px 0}
    .header-inner{gap:16px}
    .search-box{display:none}
    .page-grid{grid-template-columns:minmax(0,1fr)}
    .side{position:static;flex-direction:row;flex-wrap:wrap}
    .side > *{flex:1 1 260px}
    .cta-band{flex-direction:column;align-items:flex-start}
    .alt-row{gap:24px}
  }
  @media (max-width:900px){
    .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:24px}
    .hero-deco{display:none}
    .hero{padding-bottom:48px}
    .prep-grid{grid-template-columns:minmax(0,1fr)}
    .card-lead{grid-row:auto}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:48px 0 32px}
  }
  @media (max-width:768px){
    .container{padding:0 20px}
    .main-nav{display:none}
    .nav-toggle{display:inline-flex}
    .header-actions{gap:8px}
    .header-inner{height:60px}
    .site-header{position:sticky}
    .hero-actions .btn{flex:1 1 auto}
    .hero-points{gap:10px 0;flex-direction:column;align-items:flex-start}
    .hero-points li{border-right:0;padding-right:0}
    .alt-row{grid-template-columns:minmax(0,1fr)}
    .alt-row.reverse .alt-media{order:0}
    .check-list{grid-template-columns:minmax(0,1fr)}
    .cta-band{padding:28px 22px;margin-top:52px}
    .section{padding:48px 0}
    .card{padding:22px}
    .side{flex-direction:column}
    .side > *{flex:1 1 auto;width:100%}
    body{padding-bottom:64px}
    .mobile-bar{
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      position:fixed;left:0;right:0;bottom:0;z-index:70;height:64px;
      padding:0 20px;background:#fff;
      border-top:1px solid var(--c-line);
      box-shadow:0 -6px 20px -12px rgba(15,27,42,.28);
    }
    .mobile-bar span{font-size:13px;color:var(--c-ink-2)}
    .site-footer{margin-top:56px}
  }
  @media (max-width:520px){
    .hero-title{font-size:28px}
    .cta-actions{width:100%}
    .cta-actions .btn{flex:1 1 auto}
    .footer-grid{grid-template-columns:minmax(0,1fr)}
  }

  @media (prefers-reduced-motion: reduce){
    *{transition:none !important;animation:none !important}
    .card:hover,.check-item:hover,.hero-media:hover img,.alt-media:hover img{transform:none}
  }

/* roulang page: category2 */
:root{
  --c-brand:#0E6BA8;--c-brand-600:#0B5B90;--c-brand-50:#EAF3FA;
  --c-accent:#0FA48A;--c-accent-50:#E7F6F2;--c-warn:#C97A15;
  --c-ink:#0F1B2A;--c-ink-2:#4A5A6E;--c-ink-3:#7A8899;
  --c-line:#E6EBF2;--c-bg:#F7F9FC;--c-card:#FFFFFF;
  --r-card:14px;--r-btn:10px;--r-img:18px;
  --sh-1:0 1px 2px rgba(15,27,42,.05),0 10px 26px -18px rgba(15,27,42,.18);
  --sh-2:0 2px 6px rgba(15,27,42,.07),0 18px 40px -20px rgba(15,27,42,.24);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:0;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-brand);background:var(--c-brand-50);border-radius:999px;padding:6px 14px}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;margin:16px 0 14px}
.section-head p{color:var(--c-ink-2);font-size:16px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:0 1px 2px rgba(15,27,42,.04)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:600;color:var(--c-ink);white-space:nowrap}
.brand-mark{width:28px;height:28px;border-radius:9px;background:var(--c-brand-50);color:var(--c-brand);display:grid;place-items:center;flex:none}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{position:relative;font-size:15px;color:var(--c-ink-2);padding:8px 0;transition:color .18s ease}
.nav-link::after{content:"";position:absolute;left:50%;bottom:0;width:60%;height:2px;border-radius:2px;background:var(--c-brand);transform:translateX(-50%) scaleX(0);transition:transform .2s ease}
.nav-link:hover{color:var(--c-brand)}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-link.is-active{color:var(--c-brand);font-weight:600}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1)}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-btn);color:var(--c-ink-3);transition:border-color .18s ease,background .18s ease}
.search-box:focus-within{border-color:var(--c-brand);background:#fff;box-shadow:0 0 0 3px var(--c-brand-50)}
.search-box input{border:0;background:transparent;outline:none;width:150px;font-size:14px}
.search-box input::placeholder{color:var(--c-ink-3)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-brand-600);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:none}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-50)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.link-cta{display:inline-flex;align-items:center;gap:6px;color:var(--c-brand);font-weight:600;font-size:15px}
.link-cta svg{transition:transform .18s ease}
.link-cta:hover svg{transform:translateX(2px)}
.menu-toggle{display:none;width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-btn);align-items:center;justify-content:center;color:var(--c-ink)}
.drawer{display:none;border-top:1px solid var(--c-line);background:#fff}
.drawer.is-open{display:block}
.drawer-inner{padding:16px 0 24px;display:grid;gap:6px}
.drawer .nav-link{padding:12px 4px;border-bottom:1px solid var(--c-line);font-size:16px}
.drawer .nav-link::after{display:none}
.drawer .btn{margin-top:14px;width:100%}

/* hero */
.page-hero{position:relative;background:#fff;border-bottom:1px solid var(--c-line);overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#F2F8FD 0%,#FFFFFF 78%);pointer-events:none}
.page-hero .container{position:relative}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center;padding:56px 0 60px}
.hero-copy h1{font-size:clamp(28px,3.6vw,40px);line-height:1.28;font-weight:700;margin:18px 0 16px;color:var(--c-ink)}
.hero-copy p.lead{font-size:17px;color:var(--c-ink-2);max-width:560px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:26px;font-size:14px;color:var(--c-ink-2)}
.hero-points span{display:inline-flex;align-items:center;gap:7px}
.hero-points svg{color:var(--c-accent);flex:none}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:16/10;background:var(--c-brand-50)}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.hero-media:hover img{transform:scale(1.03)}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(255,255,255,.08)}
.hero-media .media-tag{position:absolute;left:18px;bottom:18px;z-index:2;background:rgba(255,255,255,.94);border:1px solid var(--c-line);border-radius:999px;padding:7px 14px;font-size:13px;font-weight:600;color:var(--c-brand)}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-3);padding-top:22px}
.breadcrumb a:hover{color:var(--c-brand)}

/* alternate blocks */
.alt-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;padding:44px 0;border-bottom:1px solid var(--c-line)}
.alt-row:last-child{border-bottom:0}
.alt-row.reverse .alt-media{order:2}
.alt-media{border-radius:var(--r-img);overflow:hidden;aspect-ratio:4/3;background:var(--c-brand-50);box-shadow:var(--sh-1)}
.alt-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.alt-media:hover img{transform:scale(1.03)}
.alt-body h3{font-size:21px;font-weight:700;margin-bottom:14px}
.alt-body p{color:var(--c-ink-2);margin-bottom:12px}
.mini-list{display:grid;gap:10px;margin-top:18px}
.mini-list li{display:flex;gap:10px;font-size:15px;color:var(--c-ink-2)}
.mini-list li::before{content:"";flex:none;width:7px;height:7px;margin-top:9px;border-radius:2px;background:var(--c-accent)}

/* cards */
.card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--c-accent-50);color:var(--c-accent);border-radius:999px;padding:5px 12px;font-size:12.5px;font-weight:600}
.badge-brand{background:var(--c-brand-50);color:var(--c-brand)}
.verify-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.verify-grid .card h3{font-size:19px;font-weight:700;margin:16px 0 10px}
.verify-grid .card p{color:var(--c-ink-2);font-size:15px}
.card-icon{width:44px;height:44px;border-radius:12px;background:var(--c-brand-50);color:var(--c-brand);display:grid;place-items:center}
.card-icon.is-accent{background:var(--c-accent-50);color:var(--c-accent)}
.card-tips{margin-top:16px;padding-top:16px;border-top:1px dashed var(--c-line);font-size:14px;color:var(--c-ink-3)}

/* stat strip */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.stat-item strong{display:block;font-size:26px;font-weight:700;color:var(--c-brand);letter-spacing:-.01em}
.stat-item span{font-size:14px;color:var(--c-ink-2)}

/* timeline */
.timeline{position:relative;margin-top:12px;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:1px;background:var(--c-line)}
.tl-item{position:relative;padding:0 0 26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-30px;top:8px;width:11px;height:11px;border-radius:50%;background:var(--c-brand);box-shadow:0 0 0 4px var(--c-brand-50)}
.tl-item h4{font-size:16px;font-weight:600;margin-bottom:6px}
.tl-item p{font-size:15px;color:var(--c-ink-2)}

/* faq */
.faq-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.faq-item+.faq-item{border-top:1px solid var(--c-line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;background:transparent;border:0;text-align:left;padding:22px 26px;font-size:16px;font-weight:600;color:var(--c-ink)}
.faq-q:hover{background:var(--c-brand-50)}
.faq-mark{flex:none;width:28px;height:28px;border-radius:50%;background:var(--c-brand-50);color:var(--c-brand);display:grid;place-items:center;font-size:17px;line-height:1;font-weight:600;transition:transform .2s ease}
.faq-item.is-open .faq-mark{transform:rotate(180deg)}
.faq-a{display:none;padding:0 64px 24px 26px;color:var(--c-ink-2);font-size:15px;line-height:1.8}
.faq-item.is-open .faq-a{display:block}

/* cta */
.cta-band{background:var(--c-brand-50);border-radius:var(--r-img);padding:46px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;border:1px solid #D8E8F5}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;margin-bottom:12px}
.cta-band p{color:var(--c-ink-2);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* footer */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:96px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600}
.footer-mark{width:28px;height:28px;border-radius:9px;background:rgba(255,255,255,.1);color:#8FC7E8;display:grid;place-items:center}
.footer-note{font-size:14px;color:rgba(255,255,255,.6);margin-top:14px;max-width:320px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);transition:color .18s ease}
.footer-links a:hover{color:#fff}
.footer-links li{font-size:14px;color:rgba(255,255,255,.68)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:22px;font-size:13px;color:rgba(255,255,255,.55)}

/* mobile conversion bar */
.mobile-cta{display:none}
@media (max-width:768px){
  .mobile-cta{display:flex;align-items:center;justify-content:space-between;gap:14px;position:fixed;left:0;right:0;bottom:0;z-index:70;height:64px;padding:0 16px;background:#fff;border-top:1px solid var(--c-line);box-shadow:0 -8px 24px -16px rgba(15,27,42,.35)}
  .mobile-cta span{font-size:13px;color:var(--c-ink-2)}
  body{padding-bottom:64px}
}

@media (max-width:1024px){
  .container{padding:0 24px}
  .main-nav,.search-box{display:none}
  .menu-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:32px;padding:40px 0 48px}
  .alt-row{grid-template-columns:1fr;gap:26px;padding:34px 0}
  .alt-row.reverse .alt-media{order:0}
  .verify-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:36px}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .stat-strip{grid-template-columns:1fr 1fr;gap:20px;padding:22px}
  .site-footer{padding:48px 0 24px;margin-top:64px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .hero-copy h1{font-size:26px}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .card:hover,.btn-primary:hover{transform:none}
  .hero-media:hover img,.alt-media:hover img{transform:none}
}

/* roulang page: category3 */
:root{
  --c-brand:#0E6BA8;
  --c-brand-600:#0B5B90;
  --c-brand-50:#EAF3FA;
  --c-accent:#0FA48A;
  --c-accent-50:#E7F6F2;
  --c-warn:#C97A15;
  --c-ink:#0F1B2A;
  --c-ink-2:#4A5A6E;
  --c-ink-3:#7A8899;
  --c-line:#E6EBF2;
  --c-bg:#F7F9FC;
  --c-card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:18px;
  --sh-1:0 1px 2px rgba(15,27,42,.05), 0 10px 26px -18px rgba(15,27,42,.18);
  --sh-2:0 2px 6px rgba(15,27,42,.07), 0 18px 40px -20px rgba(15,27,42,.24);
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  color:var(--c-ink);
  background:var(--c-bg);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3{font-weight:600;letter-spacing:-.01em;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:8px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-title{font-size:clamp(22px,2.6vw,30px);line-height:1.35;}
.section-sub{margin-top:12px;color:var(--c-ink-2);font-size:16px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 1px 2px rgba(15,27,42,.04);
}
.header-inner{
  height:68px;display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  background:var(--c-brand-50);color:var(--c-brand);
  display:grid;place-items:center;flex:0 0 28px;
}
.brand-text{font-size:17px;font-weight:600;color:var(--c-ink);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  padding:8px 12px;font-size:15px;color:var(--c-ink-2);
  border-radius:8px;transition:color var(--ease),background var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:60%;height:2px;border-radius:2px;background:var(--c-brand);
  transform:translateX(-50%) scaleX(0);
  transform-origin:center;transition:transform var(--ease);
}
.nav-link:hover{color:var(--c-brand);background:var(--c-brand-50);}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-link.is-active{color:var(--c-brand);font-weight:600;}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1);}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;width:230px;
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:10px;
  color:var(--c-ink-3);transition:border-color var(--ease),background var(--ease);
}
.search-box:focus-within{border-color:var(--c-brand);background:#fff;box-shadow:0 0 0 3px rgba(14,107,168,.12);}
.search-box input{
  width:100%;border:0;outline:none;background:transparent;
  font:inherit;font-size:14px;color:var(--c-ink);
}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-icon-btn{
  display:none;width:40px;height:40px;border-radius:10px;
  background:var(--c-bg);border:1px solid var(--c-line);
  place-items:center;color:var(--c-ink-2);
}
.search-icon-btn:hover{color:var(--c-brand);border-color:var(--c-brand);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  place-items:center;
}
.nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-brand-600);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:none;box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--c-ink);border:1px solid var(--c-line);}
.btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-50);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

.nav-drawer{
  display:none;background:#fff;border-top:1px solid var(--c-line);
  box-shadow:0 14px 30px -20px rgba(15,27,42,.35);
}
.nav-drawer.is-open{display:block;}
.drawer-inner{padding:16px 0 22px;display:flex;flex-direction:column;gap:4px;}
.drawer-link{
  padding:12px 4px;font-size:15px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.drawer-link.is-active{color:var(--c-brand);font-weight:600;}
.drawer-cta{margin-top:16px;width:100%;}

/* ---------- hero ---------- */
.hero-faq{
  background:#fff;
  border-bottom:1px solid var(--c-line);
  padding:44px 0 40px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-3);}
.crumb a:hover{color:var(--c-brand);}
.crumb-sep{color:var(--c-line);}
.hero-faq h1{
  margin-top:18px;
  font-size:clamp(28px,3.6vw,38px);
  line-height:1.28;
  font-weight:700;
  max-width:820px;
}
.hero-lead{
  margin-top:14px;max-width:720px;
  color:var(--c-ink-2);font-size:16px;
}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 15px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);
  font-size:14px;color:var(--c-ink-2);
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.pill:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-50);}

/* ---------- quick grid ---------- */
.quick-grid{
  display:grid;grid-template-columns:repeat(12,1fr);gap:22px;
}
.quick-card{
  grid-column:span 6;
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:26px;
  box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:10px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.quick-card:nth-child(1){grid-column:span 5;}
.quick-card:nth-child(2){grid-column:span 7;}
.quick-card:nth-child(3){grid-column:span 7;}
.quick-card:nth-child(4){grid-column:span 5;}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D7E3EF;}
.quick-top{display:flex;align-items:center;gap:12px;}
.quick-ico{
  width:38px;height:38px;border-radius:11px;flex:0 0 38px;
  background:var(--c-brand-50);color:var(--c-brand);
  display:grid;place-items:center;
}
.quick-card h3{font-size:18px;}
.quick-card p{font-size:14px;color:var(--c-ink-2);}
.quick-foot{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--c-line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-ink-3);
}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-brand);font-weight:600;font-size:14px;}
.link-arrow svg{transition:transform var(--ease);}
.link-arrow:hover svg{transform:translateX(2px);}

/* ---------- faq ---------- */
.faq-group{margin-bottom:46px;}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.group-head h2{font-size:clamp(20px,2.2vw,24px);}
.group-tag{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;
  background:var(--c-accent-50);color:var(--c-accent);
  font-size:12px;font-weight:600;
}
.group-index{
  font-size:14px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;
}
.faq-list{
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:20px 26px;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);
  transition:background var(--ease),color var(--ease);
}
.faq-q:hover{background:var(--c-brand-50);color:var(--c-brand-600);}
.faq-icon{
  position:relative;width:28px;height:28px;flex:0 0 28px;
  border-radius:50%;background:var(--c-brand-50);color:var(--c-brand);
  transition:background var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:1.8px;}
.faq-icon::after{width:1.8px;height:12px;transition:transform var(--ease);}
.faq-q[aria-expanded="true"] .faq-icon{background:var(--c-brand);color:#fff;}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{padding:0 32px 24px 26px;color:var(--c-ink-2);font-size:15px;line-height:1.8;}
.faq-a p + p{margin-top:12px;}
.faq-a strong{color:var(--c-ink);font-weight:600;}

/* ---------- check list ---------- */
.check-wrap{
  display:grid;grid-template-columns:1.15fr 1fr;gap:28px;align-items:start;
}
.check-card{
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);
}
.check-card h2{font-size:clamp(20px,2.2vw,24px);}
.check-card .hint{margin-top:10px;font-size:14px;color:var(--c-ink-2);}
.check-list{margin-top:20px;}
.check-list li{
  display:flex;gap:12px;padding:14px 0;
  border-bottom:1px dashed var(--c-line);
  font-size:15px;color:var(--c-ink-2);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-box{
  position:relative;width:20px;height:20px;flex:0 0 20px;margin-top:4px;
  border-radius:6px;background:var(--c-accent-50);
  border:1.6px solid var(--c-accent);
}
.check-box::after{
  content:"";position:absolute;left:6px;top:2px;
  width:5px;height:10px;border-right:2px solid var(--c-accent);
  border-bottom:2px solid var(--c-accent);transform:rotate(42deg);
}
.side-card{
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
}
.side-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.side-body{padding:24px 26px 26px;}
.side-body h3{font-size:18px;}
.side-body p{margin-top:10px;font-size:14px;color:var(--c-ink-2);}
.side-list{margin-top:16px;border-top:1px solid var(--c-line);padding-top:16px;}
.side-list li{font-size:14px;color:var(--c-ink-2);padding:6px 0;}
.side-list li span{color:var(--c-ink-3);}

/* ---------- help ---------- */
.help-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
}
.help-media{
  border-radius:var(--r-img);overflow:hidden;background:var(--c-brand-50);
  box-shadow:var(--sh-1);
}
.help-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 220ms ease;}
.help-media:hover img{transform:scale(1.03);}
.help-body h2{font-size:clamp(22px,2.6vw,28px);}
.help-body p{margin-top:14px;color:var(--c-ink-2);}
.help-points{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.help-points li{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--c-line);border-radius:12px;
  padding:14px 16px;font-size:14px;color:var(--c-ink-2);
}
.help-dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-accent);
  margin-top:9px;flex:0 0 8px;
}
.help-actions{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- cta ---------- */
.cta-band{
  background:var(--c-brand-50);
  border:1px solid #D8E8F4;
  border-radius:var(--r-img);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);max-width:640px;}
.cta-band p{margin-top:10px;color:var(--c-ink-2);font-size:15px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:#C6D0DC;margin-top:88px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;}
.footer-mark{background:rgba(255,255,255,.09);color:#8FC6EA;}
.footer-note{margin-top:14px;font-size:14px;line-height:1.8;color:#93A2B4;max-width:320px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-links li{padding:6px 0;font-size:14px;color:#A9B6C6;}
.footer-links a{transition:color var(--ease);}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#8798AB;flex-wrap:wrap;
}

/* ---------- mobile bar ---------- */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:64px;background:#fff;border-top:1px solid var(--c-line);
  box-shadow:0 -8px 24px -18px rgba(15,27,42,.45);
  align-items:center;justify-content:space-between;gap:14px;
  padding:0 20px;
}
.mobile-bar span{font-size:13px;color:var(--c-ink-2);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .main-nav{gap:0;}
  .nav-link{padding:8px 9px;font-size:14px;}
  .search-box{display:none;}
  .search-icon-btn{display:grid;}
  .quick-card:nth-child(n){grid-column:span 6;}
  .check-wrap{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  body{padding-bottom:64px;}
  .header-inner{height:60px;gap:12px;}
  .main-nav,.search-icon-btn{display:none;}
  .nav-toggle{display:grid;}
  .brand-text{font-size:16px;}
  .header-actions .btn{display:none;}
  .quick-grid{grid-template-columns:1fr;}
  .quick-card:nth-child(n){grid-column:span 1;}
  .faq-q{padding:18px 18px;font-size:15px;gap:14px;}
  .faq-a{padding:0 20px 20px 18px;}
  .help-wrap{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .mobile-bar{display:flex;}
  .cta-band{padding:28px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
}
@media (max-width:520px){
  .hero-faq{padding:32px 0 30px;}
  .pill{padding:6px 12px;font-size:13px;}
  .footer-grid{grid-template-columns:1fr;}
  .check-card,.side-body{padding:22px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .quick-card:hover,.help-media:hover img{transform:none;}
}

/* roulang page: category4 */
:root{
  --c-brand:#0E6BA8;
  --c-brand-600:#0B5B90;
  --c-brand-50:#EAF3FA;
  --c-accent:#0FA48A;
  --c-accent-50:#E7F6F2;
  --c-warn:#C97A15;
  --c-ink:#0F1B2A;
  --c-ink-2:#4A5A6E;
  --c-ink-3:#7A8899;
  --c-line:#E6EBF2;
  --c-bg:#F7F9FC;
  --c-card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:18px;
  --sh-1:0 1px 2px rgba(15,27,42,.05), 0 10px 26px -18px rgba(15,27,42,.18);
  --sh-2:0 2px 6px rgba(15,27,42,.07), 0 18px 40px -20px rgba(15,27,42,.24);
  --font-cn:-apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:0 1px 2px rgba(15,27,42,.04);}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{width:28px;height:28px;border-radius:9px;background:var(--c-brand-50);color:var(--c-brand);display:inline-flex;align-items:center;justify-content:center;flex:none;}
.brand-text{font-size:17px;font-weight:600;color:var(--c-ink);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{position:relative;padding:8px 12px;font-size:14.5px;color:var(--c-ink-2);border-radius:8px;transition:color .18s ease;}
.nav-link::after{content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;background:var(--c-brand);border-radius:2px;transform:translateX(-50%);transition:width .2s ease;}
.nav-link:hover{color:var(--c-brand);}
.nav-link:hover::after{width:60%;}
.nav-link.is-active{color:var(--c-brand);font-weight:600;}
.nav-link.is-active::after{width:60%;}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-search{display:flex;align-items:center;gap:8px;width:212px;height:40px;padding:0 12px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);transition:border-color .18s ease, box-shadow .18s ease;}
.nav-search svg{flex:none;color:var(--c-ink-3);}
.nav-search input{width:100%;border:0;outline:0;background:transparent;font-size:14px;}
.nav-search input::placeholder{color:var(--c-ink-3);}
.nav-search:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(14,107,168,.12);}
.nav-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);cursor:pointer;transition:border-color .18s ease,background-color .18s ease;}
.nav-toggle:hover{border-color:var(--c-brand);background:var(--c-brand-50);}
.mobile-drawer{display:none;border-top:1px solid var(--c-line);background:#fff;padding:10px 20px 22px;}
.mobile-drawer.is-open{display:block;}
.drawer-link{display:block;padding:13px 4px;font-size:15px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line);}
.drawer-link.is-active{color:var(--c-brand);font-weight:600;}
.drawer-cta{margin-top:18px;display:flex;}
.drawer-cta .btn{width:100%;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:background-color .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-brand-600);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:none;box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-50);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-brand);}
.btn-text svg{transition:transform .18s ease;}
.btn-text:hover svg{transform:translateX(2px);}

/* ---------- 首屏标题条 ---------- */
.page-hero{background:#EFF6FB;border-bottom:1px solid var(--c-line);padding:44px 0 42px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-3);margin-bottom:14px;}
.breadcrumb a:hover{color:var(--c-brand);}
.breadcrumb .sep{color:#C4D0DC;}
.page-title{font-size:clamp(28px,3.7vw,38px);line-height:1.28;margin-bottom:14px;}
.page-lead{max-width:780px;font-size:16px;color:var(--c-ink-2);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--c-line);font-size:13px;color:var(--c-ink-2);}
.chip.is-accent{background:var(--c-accent-50);border-color:transparent;color:#0B7D6A;font-weight:600;}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:740px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,2.7vw,30px);margin-bottom:12px;}
.section-head p{font-size:16px;color:var(--c-ink-2);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;background:var(--c-brand-50);color:var(--c-brand);font-size:13px;font-weight:600;margin-bottom:16px;}

/* ---------- 卡片 ---------- */
.card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--c-ink-2);}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--c-accent-50);color:#0B7D6A;font-size:12.5px;font-weight:600;margin-bottom:12px;}
.badge.is-brand{background:var(--c-brand-50);color:var(--c-brand);}
.card-img{border-radius:10px;overflow:hidden;aspect-ratio:16/10;background:var(--c-brand-50);margin-bottom:20px;}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-img img{transform:scale(1.03);}
.card-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:16px;font-size:13px;color:var(--c-ink-3);}
.dot{width:4px;height:4px;border-radius:50%;background:#C4D0DC;}

.grid-notice{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.stack{display:grid;gap:24px;}
.card-mini{display:flex;gap:16px;align-items:flex-start;padding:22px;}
.card-mini .thumb{width:104px;aspect-ratio:4/3;border-radius:10px;overflow:hidden;flex:none;background:var(--c-brand-50);}
.card-mini .thumb img{width:100%;height:100%;object-fit:cover;}
.card-mini h3{font-size:16.5px;margin-bottom:8px;}
.card-mini p{font-size:14px;}

.grid-four{display:grid;grid-template-columns:1.3fr 1fr;grid-template-areas:"a b" "a c" "d d";gap:24px;}
.area-a{grid-area:a;}
.area-b{grid-area:b;}
.area-c{grid-area:c;}
.area-d{grid-area:d;display:flex;align-items:center;gap:24px;}
.area-d .ico{width:44px;height:44px;flex:none;border-radius:12px;background:var(--c-accent-50);color:#0B7D6A;display:flex;align-items:center;justify-content:center;}

/* ---------- 时间轴 ---------- */
.timeline{margin-top:8px;}
.tl-item{position:relative;padding:0 0 40px 64px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:"";position:absolute;left:19px;top:44px;bottom:6px;border-left:1px dashed #CFDAE6;}
.tl-item:last-child::before{display:none;}
.tl-dot{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;background:var(--c-brand-50);color:var(--c-brand);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;}
.tl-item h3{font-size:18px;margin-bottom:8px;}
.tl-item p{font-size:15px;color:var(--c-ink-2);max-width:780px;}

/* ---------- 数据与图文 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.split-img{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:var(--c-brand-50);box-shadow:var(--sh-1);}
.split-img img{width:100%;height:100%;object-fit:cover;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.stat{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:transform .18s ease, box-shadow .18s ease;}
.stat:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.stat-num{font-size:30px;font-weight:700;color:var(--c-brand);line-height:1.2;}
.stat-label{margin-top:6px;font-size:14px;color:var(--c-ink-2);}
.note-list{display:grid;gap:12px;margin-top:24px;}
.note-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--c-ink-2);}
.note-list .tick{width:20px;height:20px;flex:none;border-radius:50%;background:var(--c-accent-50);color:#0B7D6A;display:flex;align-items:center;justify-content:center;margin-top:3px;}

/* ---------- FAQ ---------- */
.faq-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 26px;background:transparent;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);cursor:pointer;transition:background-color .18s ease;}
.faq-q:hover{background:#FAFCFE;}
.faq-mark{width:28px;height:28px;flex:none;border-radius:50%;background:var(--c-brand-50);color:var(--c-brand);display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:600;line-height:1;transition:background-color .2s ease,color .2s ease;}
.faq-item.is-open .faq-mark{background:var(--c-brand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 26px;}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{padding-right:32px;margin-bottom:20px;font-size:15px;line-height:1.8;color:var(--c-ink-2);max-width:840px;}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-brand-50);border-radius:var(--r-img);padding:44px;display:flex;align-items:center;justify-content:space-between;gap:36px;}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:10px;}
.cta-band p{font-size:15.5px;color:var(--c-ink-2);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C6D2DE;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff;font-size:17px;font-weight:600;}
.footer-mark{width:26px;height:26px;border-radius:9px;background:rgba(255,255,255,.1);color:#7FC4E8;display:inline-flex;align-items:center;justify-content:center;flex:none;}
.footer-note{font-size:14px;line-height:1.75;color:#93A6BA;max-width:330px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-links{display:grid;gap:10px;font-size:14px;}
.footer-links a{color:#A9BACE;transition:color .18s ease;}
.footer-links a:hover{color:#fff;}
.footer-links li{color:#A9BACE;}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;color:#8A9CB0;}

/* ---------- 移动端固定转化条 ---------- */
.mobile-cta{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{padding:0 28px;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .nav-search{display:none;}
  .grid-notice,.split{grid-template-columns:1fr;gap:24px;}
  .grid-four{grid-template-columns:1fr;grid-template-areas:"a" "b" "c" "d";}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .section{padding:64px 0;}
  .cta-band{flex-direction:column;align-items:flex-start;gap:24px;padding:36px;}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .site-header .main-nav{display:none;}
  .header-inner{height:60px;}
  .header-actions .btn-primary{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-text{font-size:16px;}
  .page-hero{padding:32px 0 30px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .tl-item{padding:0 0 32px 52px;}
  .tl-dot{width:34px;height:34px;font-size:13px;}
  .tl-item::before{left:16px;top:38px;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:16px;}
  .card{padding:22px;}
  .faq-q{padding:18px 20px;font-size:15.5px;}
  .faq-a{padding:0 20px;}
  .cta-band{padding:28px 22px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .mobile-cta{
    display:flex;position:fixed;left:0;right:0;bottom:0;height:64px;z-index:70;
    align-items:center;justify-content:space-between;gap:12px;padding:0 20px;
    background:#fff;border-top:1px solid var(--c-line);
    box-shadow:0 -8px 24px -18px rgba(15,27,42,.45);
  }
  .mobile-cta span{font-size:13px;color:var(--c-ink-2);}
  .mobile-cta .btn{height:42px;padding:0 18px;font-size:14px;flex:none;}
  body{padding-bottom:64px;}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr;}
  .card-mini{flex-direction:column;gap:14px;}
  .card-mini .thumb{width:100%;aspect-ratio:16/10;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-text{font-size:15px;}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;}
  .card:hover{transform:none;}
  .btn-primary:hover{transform:none;}
}