/* roulang page: index */
:root{
  --c-primary:#1F6FEB;
  --c-primary-d:#1552B8;
  --c-primary-l:#EAF2FE;
  --c-accent:#FF7A2F;
  --c-accent-d:#E4651B;
  --c-text:#101828;
  --c-text-2:#475467;
  --c-text-3:#98A2B3;
  --c-border:#E4E9F2;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-dark:#0E1A2B;
  --c-success:#12B76A;
  --c-warn:#F04438;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 6px 20px rgba(16,24,40,.06);
  --sh-2:0 12px 28px rgba(16,24,40,.10);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
time,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{max-width:var(--max);margin:0 auto;padding:0 24px;width:100%}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,24,40,.07)}
.header-inner{display:flex;align-items:center;gap:24px;height:76px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--c-primary),#4A8CF5);color:#fff;flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.2px}
.brand-sub{font-size:12px;color:var(--c-text-3);letter-spacing:.4px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1 1 auto}
.main-nav a{
  position:relative;padding:10px 12px;font-size:15px;font-weight:500;color:var(--c-text-2);
  border-radius:8px;transition:color .18s ease,background .18s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-primary);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.header-link{font-size:14px;color:var(--c-text-2)}
.header-link:hover{color:var(--c-primary)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-border);background:#fff;border-radius:var(--r-sm);
  align-items:center;justify-content:center;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{display:none;border-top:1px solid var(--c-border);background:#fff}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:block;padding:16px 24px;font-size:16px;color:var(--c-text-2);
  border-bottom:1px solid var(--c-border);border-left:3px solid transparent;
}
.mobile-drawer a.active{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-l)}
.mobile-drawer .drawer-cta{padding:16px 24px 20px}
.mobile-drawer .drawer-cta .btn{width:100%;justify-content:center}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:var(--c-accent-d);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-outline{background:#fff;color:var(--c-primary);border-color:#BFD7FB}
.btn-outline:hover{background:var(--c-primary-l);border-color:var(--c-primary)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px}
.link-arrow span{transition:transform .18s ease}
.link-arrow:hover span{transform:translateX(3px)}

/* Hero */
.hero{
  background:linear-gradient(160deg,#FFFFFF 0%,var(--c-primary-l) 100%);
  padding:72px 0 64px;border-bottom:1px solid var(--c-border);
}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid #CFE0FC;color:var(--c-primary);font-size:13px;font-weight:600;margin-bottom:20px;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--c-accent);display:inline-block}
.hero h1{font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.2px}
.hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.8;color:var(--c-text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-media{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 16px 40px rgba(16,24,40,.10);aspect-ratio:4/3;background:var(--c-primary-l)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(31,111,235,.08);pointer-events:none}
.hero-media .media-tag{
  position:absolute;left:20px;bottom:20px;background:#fff;border-radius:var(--r-md);
  padding:12px 16px;box-shadow:var(--sh-1);font-size:13px;color:var(--c-text-2);z-index:2;
}
.hero-media .media-tag b{display:block;font-size:15px;color:var(--c-text);margin-bottom:2px}

/* 信任条 */
.trust-bar{background:#fff;border-bottom:1px solid var(--c-border)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{padding:26px 24px;border-right:1px solid var(--c-border)}
.trust-item:last-child{border-right:0}
.trust-num{font-size:24px;font-weight:700;color:var(--c-primary);letter-spacing:-.3px}
.trust-label{font-size:14px;color:var(--c-text-2);margin-top:4px}

/* 通用板块 */
.section{padding:80px 0}
.section.alt{background:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{
  font-size:30px;line-height:1.3;font-weight:700;position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--c-primary);
}
.section-head p{margin-top:14px;color:var(--c-text-2);font-size:16px;max-width:680px}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}

/* 痛点区 */
.pain-wrap{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:start}
.pain-side h2{font-size:30px;line-height:1.32;font-weight:700}
.pain-side p{margin-top:16px;color:var(--c-text-2)}
.pain-side .mini-note{
  margin-top:24px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:18px 20px;font-size:14px;color:var(--c-text-2);box-shadow:var(--sh-1);
}
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.pain-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pain-card:nth-child(2){margin-top:24px}
.pain-card:nth-child(4){margin-top:24px}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFE0FC}
.pain-icon{
  width:38px;height:38px;border-radius:var(--r-sm);background:var(--c-primary-l);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;margin-bottom:14px;
}
.pain-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.pain-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.75}

/* 解决方案 */
.solve-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center}
.solve-media{border-radius:20px;overflow:hidden;box-shadow:0 14px 36px rgba(16,24,40,.10);aspect-ratio:4/3;background:var(--c-primary-l)}
.solve-media img{width:100%;height:100%;object-fit:cover}
.solve-body h2{font-size:30px;font-weight:700;line-height:1.32;padding-left:16px;position:relative}
.solve-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--c-primary)}
.solve-body > p{margin-top:16px;color:var(--c-text-2)}
.steps{margin-top:30px;display:flex;flex-direction:column;gap:20px}
.step{display:flex;gap:16px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);padding:20px 22px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-no{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;border:2px solid var(--c-primary);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;
}
.step-body h3{font-size:18px;font-weight:600;margin-bottom:6px}
.step-body p{font-size:14.5px;color:var(--c-text-2)}

/* 成果区 */
.stats-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--c-border);
  border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;margin-bottom:36px;
}
.stat{background:#fff;padding:30px 24px}
.stat-num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.1;letter-spacing:-.5px}
.stat-num em{font-size:16px;font-style:normal;margin-left:4px;color:var(--c-text-2);font-weight:600}
.stat p{font-size:14px;color:var(--c-text-2);margin-top:8px}
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.case-card{
  display:grid;grid-template-columns:180px 1fr;gap:0;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFE0FC}
.case-card figure{margin:0;background:var(--c-primary-l)}
.case-card figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.case-body{padding:22px}
.case-body h3{font-size:18px;font-weight:600;margin-bottom:8px}
.case-body p{font-size:14.5px;color:var(--c-text-2)}

/* 证言 */
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.quote{
  background:var(--c-primary-l);border-left:3px solid var(--c-primary);border-radius:var(--r-md);
  padding:24px 26px;position:relative;
}
.quote:first-child{grid-row:span 2}
.quote .mark{font-size:28px;line-height:1;color:var(--c-primary);font-weight:700}
.quote p{margin-top:10px;font-size:15.5px;line-height:1.85;color:var(--c-text)}
.quote footer{margin-top:14px;font-size:13.5px;color:var(--c-text-3)}

/* 最新信息 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;display:flex}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFE0FC}
.post-card-link{display:flex;flex-direction:column;width:100%}
.post-thumb{aspect-ratio:16/9;background:var(--c-primary-l);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-l);color:var(--c-primary);font-size:12.5px;font-weight:600;align-self:flex-start;
}
.post-title{
  font-size:19px;font-weight:600;line-height:1.5;margin-top:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  margin-top:10px;font-size:14.5px;color:var(--c-text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);border-top:1px solid var(--c-border);
}
.post-meta .arrow{color:var(--c-primary);font-weight:700;transition:transform .18s ease}
.post-card:hover .post-meta .arrow{transform:translateX(3px)}
.empty-state{
  grid-column:1 / -1;background:#fff;border:1px dashed #C9D8F2;border-radius:var(--r-lg);
  padding:48px 24px;text-align:center;color:var(--c-text-2);
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:50%;background:var(--c-primary-l);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:22px;font-weight:700;
}
.empty-state p{margin-bottom:18px}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-intro h2{font-size:30px;font-weight:700;line-height:1.32;padding-left:16px;position:relative}
.faq-intro h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--c-primary)}
.faq-intro p{margin-top:16px;color:var(--c-text-2)}
.faq-intro .faq-help{
  margin-top:24px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
}
.faq-help b{display:block;font-size:15px;margin-bottom:6px}
.faq-help span{font-size:14px;color:var(--c-text-2)}
.faq-list{border-top:1px solid var(--c-border)}
.faq-item{border-bottom:1px solid var(--c-border);background:transparent}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;font-size:16.5px;font-weight:600;color:var(--c-text);transition:background .18s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--c-primary-l);color:var(--c-primary)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--c-border);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:14px;
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--c-primary-l)}
.faq-answer{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2);max-width:760px}

/* CTA 通栏 */
.cta-band{background:var(--c-dark);color:#fff;padding:64px 0;border-top:3px solid var(--c-primary)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{font-size:26px;font-weight:700;line-height:1.35;color:#fff}
.cta-inner p{margin-top:10px;color:#C4CFDE;font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex:0 0 auto}

/* 页脚 */
.site-footer{background:var(--c-dark);color:#C4CFDE;border-top:3px solid var(--c-primary)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:60px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px}
.footer-brand span{font-size:16px;font-weight:700;color:#fff}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.85;color:#9FB0C6}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#C4CFDE;transition:color .18s ease}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:#8A9BB2;
}
.footer-bottom .to-top{color:#C4CFDE}
.footer-bottom .to-top:hover{color:#fff;text-decoration:underline}

/* 响应式 */
@media (max-width:1024px){
  .header-inner{height:70px}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-link{display:none}
  .hero{padding:56px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:34px}
  .hero-media{max-width:620px}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item:nth-child(2){border-right:0}
  .trust-item:nth-child(1),.trust-item:nth-child(2){border-bottom:1px solid var(--c-border)}
  .section{padding:64px 0}
  .pain-wrap{grid-template-columns:1fr;gap:32px}
  .solve-grid{grid-template-columns:1fr;gap:32px}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .quote-grid{grid-template-columns:1fr}
  .quote:first-child{grid-row:auto}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .hero h1{font-size:29px}
  .hero-lead{font-size:16px}
  .section-head h2,.pain-side h2,.solve-body h2,.faq-intro h2{font-size:24px}
  .section-head.row{flex-direction:column;align-items:flex-start;gap:14px}
  .pain-grid{grid-template-columns:1fr}
  .pain-card:nth-child(2),.pain-card:nth-child(4){margin-top:0}
  .case-card{grid-template-columns:1fr}
  .case-card figure img{aspect-ratio:16/9}
  .post-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:1fr}
  .stat{padding:24px 20px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero{padding:44px 0 40px}
  .hero h1{font-size:25px}
  .brand-name{font-size:15px}
  .brand-sub{display:none}
  .btn{height:46px;padding:0 20px;font-size:14.5px}
  .hero-actions .btn{width:100%}
  .trust-num{font-size:20px}
  .stat-num{font-size:30px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --c-primary:#1F6FEB;
  --c-primary-d:#1552B8;
  --c-primary-l:#EAF2FE;
  --c-accent:#FF7A2F;
  --c-accent-d:#E5641B;
  --c-text:#101828;
  --c-text-2:#475467;
  --c-text-3:#98A2B3;
  --c-border:#E4E9F2;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-ok:#12B76A;
  --c-warn:#F04438;
  --c-dark:#0E1A2B;
  --c-dark-2:#16263C;
  --r-xs:8px;
  --r-sm:10px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 6px 20px rgba(16,24,40,.06);
  --sh-2:0 12px 28px rgba(16,24,40,.10);
  --sh-3:0 20px 44px rgba(16,24,40,.14);
  --tr:180ms ease;
  --w-container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  font-feature-settings:"tnum" 1;
}
img{max-width:100%;display:block;height:auto;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr);}
a:hover{color:var(--c-primary-d);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--c-text);}
p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--w-container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--c-primary);background:var(--c-primary-l);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:14px;
}
.section-head h2{
  font-size:30px;line-height:1.3;position:relative;padding-left:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  border-radius:3px;background:var(--c-primary);
}
.section-head p{margin-top:12px;color:var(--c-text-2);font-size:15px;max-width:760px;}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:200;
  background:#fff;border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--tr);
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,24,40,.07);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:76px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(140deg,var(--c-primary) 0%,#3D8BFF 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
  font-size:17px;font-weight:700;letter-spacing:-.5px;
  box-shadow:0 6px 16px rgba(31,111,235,.28);
}
.brand-name{
  font-size:19px;font-weight:700;color:var(--c-text);
  letter-spacing:.2px;white-space:nowrap;
}
.brand-name:hover{color:var(--c-primary);}
.main-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.main-nav a{
  position:relative;display:inline-block;
  padding:10px 14px;font-size:15px;font-weight:500;
  color:var(--c-text-2);border-radius:var(--r-sm);
  transition:color var(--tr),background var(--tr);
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--tr);
}
.main-nav a:hover{color:var(--c-primary);background:var(--c-primary-l);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:700;}
.main-nav a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.header-link{font-size:14px;color:var(--c-text-2);font-weight:500;}
.header-link:hover{color:var(--c-primary);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  transition:background var(--tr),color var(--tr),transform var(--tr),box-shadow var(--tr),border-color var(--tr);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 18px rgba(31,111,235,.22);}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px rgba(31,111,235,.28);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px rgba(255,122,47,.28);}
.btn-accent:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-arrow i{transition:transform var(--tr);}
.link-arrow:hover i{transform:translateX(4px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--c-border);color:var(--c-text);font-size:17px;
  align-items:center;justify-content:center;background:#fff;
}
.nav-toggle:hover{background:var(--c-primary-l);color:var(--c-primary);}
.mobile-drawer{
  display:none;overflow:hidden;max-height:0;
  background:#fff;border-bottom:1px solid var(--c-border);
  transition:max-height 260ms ease;
}
.mobile-drawer.open{max-height:520px;}
.mobile-drawer .drawer-inner{padding:8px 24px 24px;}
.mobile-drawer a.drawer-link{
  display:block;padding:0 14px;line-height:52px;height:52px;
  font-size:16px;color:var(--c-text-2);border-bottom:1px solid var(--c-border);
  border-left:3px solid transparent;font-weight:500;
}
.mobile-drawer a.drawer-link.active{color:var(--c-primary);border-left-color:var(--c-primary);font-weight:700;background:var(--c-primary-l);}
.mobile-drawer .btn{margin-top:16px;}

/* ============ Read progress ============ */
.read-progress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  z-index:400;transition:width 90ms linear;
}

/* ============ Breadcrumb ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--c-border);}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);padding:14px 0;
}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-text-3);}
.breadcrumb .current{
  color:var(--c-text-3);max-width:420px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ============ Article layout ============ */
.article-hero{
  background:linear-gradient(160deg,#FFFFFF 0%,var(--c-primary-l) 100%);
  border-bottom:1px solid var(--c-border);
  padding:52px 0 44px;
}
.article-head{max-width:860px;}
.badge-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1.5;
  background:var(--c-primary-l);color:var(--c-primary);
}
.badge-accent{background:#FFF1E8;color:var(--c-accent-d);}
.badge-plain{background:#fff;border:1px solid var(--c-border);color:var(--c-text-2);}
.article-head h1{
  font-size:38px;line-height:1.28;letter-spacing:-.2px;font-weight:700;
}
.article-meta{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  margin-top:20px;font-size:13px;color:var(--c-text-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta .divider{width:1px;height:13px;background:var(--c-border);}
.article-meta i{color:var(--c-primary);}

.article-wrap{padding:56px 0 72px;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;align-items:start;
}
.article-card{
  background:var(--c-card);border:1px solid var(--c-border);
  border-radius:var(--r-xl);box-shadow:var(--sh-1);
  padding:44px 48px;
}
.article-body{max-width:820px;font-size:17px;line-height:1.9;color:#1F2A37;}
.article-body h2{
  position:relative;font-size:25px;line-height:1.35;
  margin:38px 0 14px;padding-left:14px;font-weight:700;color:var(--c-text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  border-radius:3px;background:var(--c-primary);
}
.article-body h3{font-size:20px;line-height:1.45;margin:28px 0 12px;font-weight:600;}
.article-body h4{font-size:17px;margin:22px 0 10px;font-weight:600;}
.article-body p{margin:0 0 16px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul li,.article-body ol li{margin-bottom:9px;line-height:1.85;list-style:inherit;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body img{
  border-radius:var(--r-md);margin:20px 0 8px;width:100%;
}
.article-body blockquote{
  margin:22px 0;padding:18px 22px;
  background:var(--c-primary-l);border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-md) var(--r-md) 0;color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;
  border:1px solid var(--c-border);border-radius:var(--r-md);
  overflow:hidden;font-size:15px;
}
.article-body thead th{
  background:var(--c-primary-l);color:var(--c-text);
  font-weight:600;text-align:left;padding:12px 16px;border:0;
}
.article-body tbody td{padding:12px 16px;border:0;color:var(--c-text-2);}
.article-body tbody tr:nth-child(even){background:#F8FAFE;}
.article-body tbody tr+tr{border-top:1px solid var(--c-border);}
.article-body a{font-weight:600;border-bottom:1px solid rgba(31,111,235,.35);}
.article-body strong{font-weight:700;color:var(--c-text);}
.article-body code{
  background:var(--c-primary-l);color:var(--c-primary-d);
  padding:2px 7px;border-radius:6px;font-size:15px;
}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:32px 0;}

.empty-state{
  text-align:center;padding:64px 24px;
  background:var(--c-primary-l);border-radius:var(--r-lg);
}
.empty-state .empty-icon{
  width:64px;height:64px;border-radius:50%;margin:0 auto 18px;
  background:#fff;color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:24px;
  box-shadow:var(--sh-1);
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:22px;}

.article-foot{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;flex-wrap:wrap;
  margin-top:36px;padding-top:26px;border-top:1px solid var(--c-border);
}
.tag-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--r-pill);
  background:#F2F6FD;border:1px solid var(--c-border);
  font-size:13px;color:var(--c-text-2);
}

/* ============ Sidebar ============ */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{
  background:var(--c-card);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px;
}
.side-card h3{
  font-size:16px;margin-bottom:16px;padding-left:11px;position:relative;
}
.side-card h3::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;
  border-radius:3px;background:var(--c-primary);
}
.side-list li+li{border-top:1px solid var(--c-border);}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;font-size:14px;color:var(--c-text-2);line-height:1.6;
}
.side-list a:hover{color:var(--c-primary);}
.side-list .idx{
  width:22px;height:22px;border-radius:6px;flex-shrink:0;
  background:var(--c-primary-l);color:var(--c-primary);
  font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.side-list .txt{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.side-cta{
  background:linear-gradient(160deg,var(--c-primary) 0%,#3D8BFF 100%);
  border-radius:var(--r-lg);padding:24px;color:#fff;
}
.side-cta h3{color:#fff;font-size:17px;margin-bottom:10px;padding:0;}
.side-cta h3::before{display:none;}
.side-cta p{font-size:14px;color:rgba(255,255,255,.88);line-height:1.7;margin-bottom:18px;}
.side-cta .btn{width:100%;background:#fff;color:var(--c-primary);}
.side-cta .btn:hover{background:#F0F6FF;color:var(--c-primary-d);}
.side-meta{font-size:13px;color:var(--c-text-3);line-height:1.9;}
.side-meta div{display:flex;justify-content:space-between;gap:12px;}
.side-meta div+div{margin-top:8px;padding-top:8px;border-top:1px dashed var(--c-border);}
.side-meta b{color:var(--c-text-2);font-weight:600;}

/* ============ Related ============ */
.related-section{background:#fff;border-top:1px solid var(--c-border);}
.mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.mini-card{
  background:var(--c-card);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px;
  display:flex;flex-direction:column;gap:10px;
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-l);}
.mini-card .mini-tag{
  font-size:12px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-l);padding:4px 10px;border-radius:var(--r-pill);
  align-self:flex-start;
}
.mini-card h3{font-size:17px;line-height:1.5;}
.mini-card p{font-size:14px;color:var(--c-text-2);line-height:1.7;}
.mini-card .link-arrow{margin-top:auto;}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(140deg,#0E1A2B 0%,#17395F 60%,#1F6FEB 140%);
  color:#fff;border-radius:var(--r-xl);padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:27px;line-height:1.35;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin-top:12px;max-width:600px;}
.cta-band .btn-accent{height:50px;padding:0 30px;font-size:16px;}

/* ============ Footer ============ */
.site-footer{
  background:var(--c-dark);color:#C3CDDB;margin-top:0;
  border-top:3px solid var(--c-primary);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:36px;padding:64px 0 44px;
}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{color:#C3CDDB;font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-brand .brand-name{color:#fff;font-size:18px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#98A8BD;margin-top:16px;max-width:340px;}
.footer-contact-line{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:#fff;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
  padding:8px 14px;border-radius:var(--r-pill);
}
.footer-contact li{font-size:14px;color:#C3CDDB;display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;}
.footer-contact i{color:var(--c-primary);margin-top:4px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);}
.footer-bottom-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;flex-wrap:wrap;padding:20px 24px;font-size:13px;color:#8C9CB0;
}
.footer-bottom-inner .back-top{color:#C3CDDB;}
.footer-bottom-inner .back-top:hover{color:#fff;}

/* ============ Responsive ============ */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px;}
}
@media (max-width:1024px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-drawer{display:block;}
  .header-link{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .side-col{position:static;}
  .article-head h1{font-size:32px;}
  .article-card{padding:34px 30px;}
  .mini-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:52px 0 36px;}
  .cta-band{padding:40px 32px;}
}
@media (max-width:768px){
  .section{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .brand-name{font-size:16px;}
  .article-hero{padding:36px 0 30px;}
  .article-head h1{font-size:27px;}
  .article-wrap{padding:36px 0 48px;}
  .article-card{padding:26px 20px;border-radius:var(--r-lg);}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin-top:30px;}
  .article-body h3{font-size:18px;}
  .mini-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:32px 24px;border-radius:var(--r-lg);}
  .cta-band h2{font-size:22px;}
  .cta-band .btn-accent{width:100%;}
  .article-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .header-inner{min-height:66px;gap:12px;}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px;}
  .brand-name{font-size:15px;}
  .btn{padding:0 18px;font-size:14px;height:44px;}
  .article-head h1{font-size:23px;}
  .article-meta{font-size:12px;gap:9px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;padding:40px 0 28px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;padding:18px 16px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1F6FEB;
  --c-primary-d:#1552B8;
  --c-primary-l:#EAF2FE;
  --c-accent:#FF7A2F;
  --c-accent-d:#E8631A;
  --t-1:#101828;
  --t-2:#475467;
  --t-3:#98A2B3;
  --line:#E4E9F2;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ok:#12B76A;
  --warn:#F04438;
  --dark:#0E1A2B;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 6px 20px rgba(16,24,40,.06);
  --sh-2:0 12px 28px rgba(16,24,40,.10);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--t-1);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-d)}
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}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
[hidden]{display:none !important}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,24,40,.08)}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--t-1)}
.brand:hover{color:var(--t-1)}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;position:relative;
  background:linear-gradient(145deg,var(--c-primary),var(--c-primary-d));
  box-shadow:0 4px 12px rgba(31,111,235,.28);
}
.brand-mark::after{
  content:"";position:absolute;inset:11px;border-radius:4px;
  border:2px solid rgba(255,255,255,.95);transform:rotate(45deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16.5px;font-weight:700;letter-spacing:.2px}
.brand-sub{font-size:11px;color:var(--t-3);letter-spacing:.4px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.main-nav a{
  position:relative;padding:9px 14px;font-size:15px;font-weight:500;
  color:var(--t-2);border-radius:8px;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  border-radius:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.main-nav a:hover{color:var(--c-primary);background:var(--c-primary-l)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-primary);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.nav-cta{margin-left:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  margin-left:auto;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t-1)}
.mobile-drawer{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;border:1px solid var(--c-primary)}
.btn-primary:hover{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.btn-accent{background:var(--c-accent);color:#fff;border:1px solid var(--c-accent)}
.btn-accent:hover{background:var(--c-accent-d);border-color:var(--c-accent-d);color:#fff;transform:translateY(-1px)}
.btn-sm{height:42px;padding:0 20px;font-size:14.5px}
.btn:active{transform:translateY(0)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary)}
.link-arrow .arw{transition:transform .18s ease}
.link-arrow:hover .arw{transform:translateX(3px)}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(160deg,#FFFFFF 0%,var(--c-primary-l) 100%);padding:72px 0 60px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:var(--c-primary-d);background:#fff;border:1px solid var(--c-primary-l);
  padding:5px 14px;border-radius:999px;margin-bottom:18px;
}
.hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.3px;margin-bottom:18px}
.hero .lead{font-size:17px;line-height:1.85;color:var(--t-2);max-width:580px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--sh-2)}
.hero-media::after{content:"";position:absolute;inset:0;border-radius:20px;background:rgba(31,111,235,.08);pointer-events:none}
.trust-bar{display:flex;border-top:1px solid rgba(31,111,235,.18);padding-top:20px}
.trust-item{flex:1;padding:0 18px;border-left:1px solid var(--line)}
.trust-item:first-child{padding-left:0;border-left:0}
.trust-item b{display:block;font-size:22px;font-weight:700;color:var(--c-primary-d);line-height:1.4}
.trust-item span{font-size:13px;color:var(--t-3)}

/* ---------- 胶囊锚点 ---------- */
.chip-wrap{padding-top:6px}
.chip-nav{display:flex;gap:10px;overflow-x:auto;padding:18px 0;border-bottom:1px solid var(--line);scrollbar-width:thin}
.chip-nav::-webkit-scrollbar{height:4px}
.chip-nav::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
.chip{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;background:#fff;
  border:1px solid var(--line);color:var(--t-2);font-size:14px;font-weight:500;white-space:nowrap;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-l)}

/* ---------- 板块 ---------- */
.section{padding:80px 0}
.section-alt{background:#fff}
.section-head{max-width:800px;margin-bottom:40px}
.sec-title{
  position:relative;padding-left:16px;font-size:28px;font-weight:700;
  line-height:1.35;letter-spacing:-.2px;margin-bottom:12px;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:2px;background:var(--c-primary);
}
.sec-desc{font-size:16px;line-height:1.85;color:var(--t-2)}

/* ---------- 横向图文卡 ---------- */
.entry-list{display:grid;gap:24px}
.entry-card{
  display:grid;grid-template-columns:320px 1fr;gap:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-l)}
.entry-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md)}
.entry-body h3{font-size:21px;font-weight:600;line-height:1.4;margin-bottom:10px}
.entry-body p{font-size:15px;line-height:1.78;color:var(--t-2);margin-bottom:16px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{
  font-size:12.5px;font-weight:500;padding:4px 12px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary-d);line-height:1.6;
}
.tag-accent{background:#FFF1E7;color:var(--c-accent-d)}

/* ---------- 核对要点 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.check-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-l)}
.check-num{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
  border-radius:999px;border:2px solid var(--c-primary);background:#fff;
  color:var(--c-primary);font-weight:700;font-size:15px;margin-bottom:16px;
}
.check-card h3{font-size:18px;font-weight:600;margin-bottom:8px;line-height:1.45}
.check-card p{font-size:15px;line-height:1.78;color:var(--t-2)}

/* ---------- 步骤 ---------- */
.steps{display:grid;gap:18px}
.step{
  display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-l)}
.step-index{
  width:48px;height:48px;border-radius:999px;border:2px solid var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  color:var(--c-primary-d);font-weight:700;font-size:18px;background:var(--c-primary-l);
}
.step h3{font-size:19px;font-weight:600;margin-bottom:8px;line-height:1.45}
.step p{font-size:15px;line-height:1.78;color:var(--t-2)}

/* ---------- FAQ ---------- */
.faq-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:6px 28px;box-shadow:var(--sh-1);
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  position:relative;cursor:pointer;list-style:none;
  padding:20px 44px 20px 8px;font-size:16.5px;font-weight:600;line-height:1.6;
  transition:background .18s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:10px;top:26px;width:9px;height:9px;
  border-right:2px solid var(--t-3);border-bottom:2px solid var(--t-3);
  transform:rotate(45deg);transition:transform .22s ease,border-color .18s ease;
}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item summary:hover::after{border-color:var(--c-primary)}
.faq-item[open] summary{color:var(--c-primary-d)}
.faq-item[open] summary::after{transform:rotate(-135deg);top:30px;border-color:var(--c-primary)}
.faq-a{padding:0 44px 20px 8px;font-size:15px;line-height:1.85;color:var(--t-2)}

/* ---------- CTA ---------- */
.cta-section{padding:64px 0 80px}
.cta-box{
  position:relative;overflow:hidden;border-radius:24px;
  background:linear-gradient(135deg,var(--dark) 0%,#16345F 100%);
  padding:56px 48px;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
}
.cta-box::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;pointer-events:none;
}
.cta-box h2{position:relative;font-size:28px;font-weight:700;color:#fff;line-height:1.4;margin-bottom:12px}
.cta-box p{position:relative;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.78);max-width:640px}
.cta-box .btn-accent{position:relative;height:48px;padding:0 30px;font-size:16px;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);border-top:3px solid var(--c-primary);padding-top:64px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.10);
}
.footer-brand{display:flex;align-items:center;gap:11px}
.footer-brand .brand-name{color:#fff;font-size:17px}
.footer-brand .brand-sub{color:rgba(255,255,255,.5)}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);margin-top:16px;max-width:330px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col a{display:block;font-size:14.5px;color:rgba(255,255,255,.68);padding:6px 0}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-col p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);padding:6px 0}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;font-size:13.5px;color:rgba(255,255,255,.5);
}
.to-top{color:rgba(255,255,255,.7);font-weight:500}
.to-top:hover{color:#fff;text-decoration:underline}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero{padding:56px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:34px}
  .hero-media img{aspect-ratio:16/9}
  .section{padding:64px 0}
  .entry-card{grid-template-columns:260px 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-box{padding:44px 36px}
}
@media (max-width:900px){
  .main-nav{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .mobile-drawer{
    display:block;position:fixed;left:0;right:0;top:72px;z-index:75;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-2);
    padding:8px 0 18px;max-height:calc(100vh - 72px);overflow:auto;
  }
  .mobile-drawer a{
    display:block;padding:14px 22px;min-height:52px;line-height:24px;
    color:var(--t-2);font-weight:500;border-left:3px solid transparent;
  }
  .mobile-drawer a.active{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-l)}
  .mobile-drawer .drawer-cta{
    margin:14px 22px 0;height:48px;border-radius:var(--r-sm);
    display:flex;align-items:center;justify-content:center;
    background:var(--c-primary);color:#fff;border-left:0;padding:0;
  }
  .mobile-drawer .drawer-cta:hover{background:var(--c-primary-d);color:#fff}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .hero{padding:44px 0 40px}
  .hero h1{font-size:28px}
  .hero .lead{font-size:16px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 auto}
  .trust-bar{flex-direction:column;gap:14px}
  .trust-item{border-left:0;padding:0}
  .section{padding:48px 0}
  .sec-title{font-size:23px}
  .section-head{margin-bottom:28px}
  .entry-card{grid-template-columns:1fr;padding:16px;gap:16px}
  .check-grid{grid-template-columns:1fr}
  .check-card{padding:22px}
  .step{grid-template-columns:44px 1fr;padding:20px;gap:14px}
  .step-index{width:40px;height:40px;font-size:16px}
  .faq-card{padding:4px 18px}
  .faq-item summary{font-size:16px;padding-right:38px}
  .faq-a{padding-right:18px}
  .cta-section{padding:48px 0 56px}
  .cta-box{grid-template-columns:1fr;padding:36px 24px;gap:24px}
  .cta-box h2{font-size:23px}
  .cta-box .btn-accent{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:48px}
}
@media (max-width:520px){
  .hero h1{font-size:25px}
  .brand-sub{display:none}
  .btn{height:44px;padding:0 20px;font-size:14.5px}
  .btn-sm{height:42px}
  .sec-title{font-size:21px}
}

/* roulang page: category2 */
:root{
  --c-primary:#1F6FEB;
  --c-primary-d:#1552B8;
  --c-primary-l:#EAF2FE;
  --c-accent:#FF7A2F;
  --c-accent-d:#E56618;
  --c-text:#101828;
  --c-text-2:#475467;
  --c-text-3:#98A2B3;
  --c-border:#E4E9F2;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-dark:#0E1A2B;
  --c-success:#12B76A;
  --c-warn:#F04438;
  --r-xl:20px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 6px 20px rgba(16,24,40,.06);
  --sh-2:0 12px 28px rgba(16,24,40,.10);
  --sh-btn:0 6px 16px rgba(31,111,235,.22);
  --max-w:1200px;
  --ease:180ms ease;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease);}
a:hover{color:var(--c-primary-d);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 布局容器 ---------- */
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px;}
.section{padding:72px 0;}
.section-tight{padding:48px 0 56px;}

/* ---------- Foundation 覆盖 ---------- */
.off-canvas-wrapper{height:auto;}
.off-canvas-content{box-shadow:none;background:transparent;}
.off-canvas.position-right{width:300px;background:#fff;border-left:1px solid var(--c-border);}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.grid-margin-y{margin-top:-12px;}
.grid-margin-y>.cell{padding-top:12px;padding-bottom:12px;}
.accordion{margin:0;background:transparent;border:0;}
.accordion-item{border:0;}
.accordion-title{border:0;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,24,40,.07);}
.header-inner{display:flex;align-items:center;gap:24px;height:74px;}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  position:relative;width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--c-primary) 0%,#4C8DF6 100%);
  box-shadow:0 6px 14px rgba(31,111,235,.28);
}
.brand-mark::after{
  content:"";position:absolute;left:11px;top:11px;width:14px;height:14px;
  background:#fff;border-radius:4px;transform:rotate(45deg);
}
.brand-text{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:.2px;line-height:1.2;}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
.main-nav a{
  position:relative;padding:9px 13px;font-size:15px;font-weight:500;
  color:var(--c-text-2);border-radius:8px;
}
.main-nav a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.main-nav a:hover{color:var(--c-primary);background:var(--c-primary-l);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:600;background:var(--c-primary-l);}
.main-nav a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-btn);transition:all var(--ease);
}
.nav-cta:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--c-border);align-items:center;justify-content:center;
  flex-direction:column;gap:4px;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text-2);}
.drawer-head{padding:22px 20px;border-bottom:1px solid var(--c-border);font-weight:700;font-size:16px;color:var(--c-text);}
.drawer-nav a{
  display:block;padding:0 20px;line-height:54px;font-size:15px;font-weight:500;
  color:var(--c-text-2);border-bottom:1px solid var(--c-border);
}
.drawer-nav a.active{color:var(--c-primary);font-weight:600;box-shadow:inset 3px 0 0 var(--c-primary);background:var(--c-primary-l);}
.drawer-foot{padding:20px;}
.drawer-foot .nav-cta{width:100%;height:48px;border-radius:var(--r-sm);}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:all var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-btn);}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,47,.28);}
.btn-accent:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.link-more i{font-style:normal;transition:transform var(--ease);}
.link-more:hover i{transform:translateX(3px);}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:16px;}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#CBD5E1;}
.crumb .now{color:var(--c-text-3);}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,#FFFFFF 0%,var(--c-primary-l) 100%);
  border-bottom:1px solid var(--c-border);
  padding:52px 0 44px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(31,111,235,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(31,111,235,.045) 1px,transparent 1px);
  background-size:44px 44px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.hero-grid{display:flex;gap:36px;align-items:center;}
.hero-copy{flex:1 1 60%;min-width:0;}
.hero-visual{flex:0 0 38%;max-width:38%;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-xl);border:1px solid var(--c-border);
  box-shadow:var(--sh-1);
}
.tag-line{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-border);
  color:var(--c-primary-d);font-size:13px;font-weight:600;
}
.tag-line::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent);}
.page-hero h1{
  margin:16px 0 14px;font-size:38px;line-height:1.25;font-weight:700;letter-spacing:-.4px;color:var(--c-text);
}
.page-hero .lead{font-size:16px;line-height:1.85;color:var(--c-text-2);max-width:660px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.flash-bar{
  margin-top:30px;display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--c-border);border-left:3px solid var(--c-accent);
  border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-1);
}
.flash-bar .dot{width:8px;height:8px;border-radius:50%;background:var(--c-success);flex:0 0 auto;}
.flash-bar strong{font-size:14px;color:var(--c-text);}
.flash-bar span{font-size:14px;color:var(--c-text-2);}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;margin-top:32px;
}
.stat-item{padding:20px 22px;border-right:1px solid var(--c-border);}
.stat-item:last-child{border-right:0;}
.stat-item .k{font-size:13px;color:var(--c-text-3);margin-bottom:6px;}
.stat-item .v{font-size:26px;font-weight:700;color:var(--c-primary-d);line-height:1.2;}
.stat-item .v em{font-style:normal;font-size:14px;font-weight:600;color:var(--c-text-3);margin-left:4px;}

/* ---------- 板块标题 ---------- */
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.block-head h2{position:relative;padding-left:13px;font-size:26px;font-weight:700;line-height:1.3;color:var(--c-text);}
.block-head h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:2px;background:var(--c-primary);
}
.block-head .sub{font-size:14px;color:var(--c-text-3);margin-top:6px;}

/* ---------- 筛选胶囊 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:14px 16px;box-shadow:var(--sh-1);margin-bottom:24px;
}
.filter-bar .label{font-size:13px;color:var(--c-text-3);margin-right:4px;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--c-border);background:#fff;
  font-size:14px;font-weight:500;color:var(--c-text-2);transition:all var(--ease);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-l);}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;}

/* ---------- 更新卡片 ---------- */
.update-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.update-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-l);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-l);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.update-card:hover .card-media img{transform:scale(1.03);}
.card-media .ver{
  position:absolute;left:12px;top:12px;
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--r-pill);background:rgba(14,26,43,.72);color:#fff;
  font-size:12px;font-weight:600;letter-spacing:.3px;
}
.card-body{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px;flex:1 1 auto;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--c-primary-l);color:var(--c-primary-d);font-size:12px;font-weight:600;
}
.badge-accent{background:#FFF2E9;color:#C0561A;}
.badge-success{background:#E7F8F0;color:#0A7A47;}
.badge-warn{background:#FDECEA;color:#B32318;}
.card-body h3{font-size:19px;font-weight:600;line-height:1.45;color:var(--c-text);}
.card-body p{font-size:14.5px;line-height:1.7;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-border);
}
.card-foot .time{font-size:13px;color:var(--c-text-3);}
.card-foot .go{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-primary);}
.card-foot .go i{font-style:normal;transition:transform var(--ease);}
.update-card:hover .card-foot .go i{transform:translateX(3px);}

/* ---------- 侧栏 ---------- */
.side-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);margin-bottom:20px;
}
.side-card:last-child{margin-bottom:0;}
.side-title{
  position:relative;padding-left:11px;font-size:16px;font-weight:700;color:var(--c-text);margin-bottom:16px;
}
.side-title::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:3px;border-radius:2px;background:var(--c-primary);}
.quick-list li+li{margin-top:4px;}
.quick-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:var(--r-sm);font-size:14.5px;font-weight:500;color:var(--c-text-2);
  transition:all var(--ease);
}
.quick-list a:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.quick-list a i{font-style:normal;color:var(--c-text-3);transition:transform var(--ease);}
.quick-list a:hover i{transform:translateX(3px);color:var(--c-primary);}
.hot-list li{display:flex;gap:11px;padding:11px 0;border-bottom:1px dashed var(--c-border);}
.hot-list li:last-child{border-bottom:0;padding-bottom:0;}
.hot-list .rank{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;margin-top:2px;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;background:var(--c-primary-l);color:var(--c-primary-d);
}
.hot-list .rank.top{background:var(--c-accent);color:#fff;}
.hot-list a{font-size:14.5px;line-height:1.6;color:var(--c-text-2);}
.hot-list a:hover{color:var(--c-primary);}
.side-card.soft{background:var(--c-primary-l);border-color:#CFE0FB;}
.info-row{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);line-height:1.7;padding:7px 0;}
.info-row strong{flex:0 0 68px;color:var(--c-text);font-weight:600;}
.side-card .btn{width:100%;margin-top:16px;}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px;}
.step{
  position:relative;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);transition:all var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-l);}
.step .no{
  width:34px;height:34px;border-radius:50%;border:2px solid var(--c-primary);
  color:var(--c-primary-d);font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;color:var(--c-text);}
.step p{font-size:14.5px;line-height:1.75;color:var(--c-text-2);}

/* ---------- FAQ ---------- */
.faq-wrap{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-wrap .accordion{border:0;}
.faq-wrap .accordion-item{border-bottom:1px solid var(--c-border);}
.faq-wrap .accordion-item:last-child{border-bottom:0;}
.faq-wrap .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--c-text);
  background:#fff;border:0;transition:background-color var(--ease),color var(--ease);
}
.faq-wrap .accordion-title:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.faq-wrap .accordion-title::before{content:"";display:none;}
.faq-wrap .accordion-title::after{
  content:"";flex:0 0 auto;width:9px;height:9px;margin-right:2px;
  border-right:2px solid var(--c-text-3);border-bottom:2px solid var(--c-text-3);
  transform:rotate(45deg);transition:transform var(--ease),border-color var(--ease);
}
.faq-wrap .accordion-item.is-active .accordion-title{color:var(--c-primary-d);}
.faq-wrap .accordion-item.is-active .accordion-title::after{transform:rotate(-135deg);border-color:var(--c-primary);}
.faq-wrap .accordion-content{padding:0 24px 22px;background:#fff;border:0;color:var(--c-text-2);font-size:15px;line-height:1.85;}
.faq-wrap .accordion-content p+p{margin-top:10px;}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--c-primary) 0%,#2F7DF0 60%,#4C8DF6 100%);
  border-radius:var(--r-xl);padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 18px 40px rgba(31,111,235,.20);
}
.cta-band .cta-copy{max-width:640px;}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.35;color:#fff;margin-bottom:10px;}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.88);}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:80px;background:var(--c-dark);color:#A9B8CC;
  border-top:3px solid var(--c-primary);padding-top:56px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand span{font-size:16.5px;font-weight:700;color:#fff;letter-spacing:.2px;}
.footer-desc{font-size:14px;line-height:1.85;color:#8FA0B8;max-width:320px;}
.footer-note{
  margin-top:16px;font-size:13px;color:#7A8CA6;
  border-left:2px solid var(--c-primary);padding-left:12px;line-height:1.7;
}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col li+li{margin-top:10px;}
.footer-col a{font-size:14px;color:#A9B8CC;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-col .plain{font-size:14px;color:#8FA0B8;line-height:1.8;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:#7A8CA6;
}
.footer-bottom .left{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.footer-bottom .left .sep{color:#42546E;}
.back-top{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#A9B8CC;}
.back-top:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 20px;}
  .main-nav,.header-actions .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:68px;}
  .page-hero{padding:44px 0 38px;}
  .page-hero h1{font-size:32px;}
  .hero-visual{flex:0 0 34%;max-width:34%;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--c-border);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:60px 0;}
}
@media (max-width:768px){
  .page-hero h1{font-size:28px;}
  .hero-grid{flex-direction:column;align-items:stretch;gap:26px;}
  .hero-visual{flex:1 1 auto;max-width:100%;}
  .hero-visual img{aspect-ratio:16/9;}
  .steps{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;text-align:left;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{flex:1 1 auto;}
  .block-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-desc{max-width:100%;}
  .faq-wrap .accordion-title{padding:16px 18px;font-size:15.5px;}
  .faq-wrap .accordion-content{padding:0 18px 18px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .site-header .brand-text{font-size:15.5px;}
  .page-hero{padding:36px 0 32px;}
  .page-hero h1{font-size:24px;line-height:1.35;}
  .page-hero .lead{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--c-border);}
  .stat-item:last-child{border-bottom:0;}
  .filter-bar{padding:12px;gap:8px;}
  .chip{height:32px;padding:0 13px;font-size:13px;}
  .section{padding:48px 0;}
  .block-head h2{font-size:22px;}
  .card-body{padding:18px;}
  .side-card{padding:18px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1F6FEB;
  --c-primary-d:#1552B8;
  --c-primary-l:#EAF2FE;
  --c-accent:#FF7A2F;
  --c-accent-d:#E8641C;
  --t-main:#101828;
  --t-sub:#475467;
  --t-weak:#98A2B3;
  --c-border:#E4E9F2;
  --c-page:#F5F8FC;
  --c-card:#FFFFFF;
  --c-success:#12B76A;
  --c-warn:#F04438;
  --c-footer:#0E1A2B;
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-hero:20px;
  --r-pill:999px;
  --sh-card:0 6px 20px rgba(16,24,40,.06);
  --sh-card-h:0 12px 28px rgba(16,24,40,.10);
  --sp-8:8px;
  --sp-16:16px;
  --sp-24:24px;
  --sp-32:32px;
  --sp-48:48px;
  --sp-64:64px;
  --sp-80:80px;
  --max-w:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--t-main);
  background:var(--c-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-d);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--max-w);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,24,40,.07);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--t-main);
  font-weight:700;
}
.brand:hover{color:var(--t-main);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--c-primary) 0%,#3E8BFF 55%,var(--c-accent) 130%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;
  box-shadow:0 6px 14px rgba(31,111,235,.28);
}
.brand-text{font-size:18px;letter-spacing:.2px;white-space:nowrap;}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--t-weak);letter-spacing:1px;line-height:1.2;}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
  flex-wrap:wrap;
}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--t-sub);
  border-radius:8px;
  transition:color .18s ease,background .18s ease;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  background:var(--c-primary);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.main-nav a:hover{color:var(--c-primary);background:var(--c-primary-l);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-actions .link-secondary{
  font-size:14px;color:var(--t-sub);font-weight:500;
}
.nav-actions .link-secondary:hover{color:var(--c-primary);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);border-color:var(--c-primary-d);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn:focus-visible{box-shadow:0 0 0 3px rgba(31,111,235,.28);outline:none;}
.nav-cta{height:44px;padding:0 22px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-border);
  background:#fff;
  border-radius:10px;
  color:var(--t-main);
  font-size:18px;
  cursor:pointer;
}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--c-border);}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--t-weak);
  padding:14px 0;
  flex-wrap:wrap;
}
.crumb a{color:var(--t-sub);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--t-weak);}
.crumb .cur{color:var(--t-weak);}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(160deg,#FFFFFF 0%,var(--c-primary-l) 100%);
  padding:64px 0 56px;
  position:relative;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(31,111,235,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(31,111,235,.05) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.5;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;}
.hero-copy h1{
  font-size:40px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.2px;
}
.hero-copy .lead{
  margin-top:16px;
  font-size:17px;
  color:var(--t-sub);
  line-height:1.85;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;
  background:#fff;
  border:1px solid var(--c-border);
  color:var(--c-primary);
  font-size:13px;
  font-weight:600;
  border-radius:var(--r-pill);
  margin-bottom:18px;
}
.eyebrow i{color:var(--c-accent);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-media{
  border-radius:var(--r-hero);
  overflow:hidden;
  position:relative;
  border:1px solid var(--c-border);
  box-shadow:var(--sh-card);
  background:var(--c-primary-l);
}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-media .veil{
  position:absolute;inset:0;
  background:rgba(31,111,235,.08);
}
.hero-badges{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:22px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  font-size:13px;
  font-weight:600;
  border-radius:var(--r-pill);
  background:var(--c-primary-l);
  color:var(--c-primary-d);
}
.badge-accent{background:#FFF1E8;color:var(--c-accent-d);}
.badge-line{background:#fff;border:1px solid var(--c-border);color:var(--t-sub);}
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  margin-top:38px;
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:14px;
  overflow:hidden;
  box-shadow:var(--sh-card);
}
.stat-strip .stat{
  padding:18px 20px;
  border-right:1px solid var(--c-border);
}
.stat-strip .stat:last-child{border-right:none;}
.stat .num{
  font-size:22px;font-weight:700;color:var(--c-primary-d);
  font-variant-numeric:tabular-nums;
  display:block;
}
.stat .lbl{font-size:13px;color:var(--t-sub);margin-top:2px;display:block;}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section.alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head .kicker{
  display:inline-block;
  font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--c-primary);
  margin-bottom:10px;
}
.section-head h2{
  font-size:29px;
  line-height:1.3;
  font-weight:700;
  padding-left:14px;
  position:relative;
}
.section-head h2::before{
  content:"";
  position:absolute;left:0;top:6px;bottom:6px;width:3px;
  border-radius:3px;background:var(--c-primary);
}
.section-head p{margin-top:14px;color:var(--t-sub);font-size:16px;}
.section-head.center{max-width:820px;margin-left:auto;margin-right:auto;text-align:center;}
.section-head.center h2{padding-left:0;}
.section-head.center h2::before{display:none;}

/* ---------- 要点卡 ---------- */
.point-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.point-card{
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-h);border-color:var(--c-primary-l);}
.point-card .ico{
  width:44px;height:44px;border-radius:12px;
  background:var(--c-primary-l);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:19px;margin-bottom:16px;
}
.point-card h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.point-card p{font-size:14.5px;color:var(--t-sub);line-height:1.75;}

/* ---------- 步骤条 ---------- */
.steps-wrap{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:40px;
  align-items:start;
}
.steps{position:relative;padding-left:6px;}
.steps::before{
  content:"";
  position:absolute;
  left:21px;top:18px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--c-primary) 0%,rgba(31,111,235,.15) 100%);
  border-radius:2px;
}
.step{
  position:relative;
  display:flex;
  gap:20px;
  padding:0 0 30px 0;
}
.step:last-child{padding-bottom:0;}
.step-num{
  flex:0 0 auto;
  width:32px;height:32px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--c-primary);
  color:var(--c-primary);
  font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  position:relative;z-index:2;
  font-variant-numeric:tabular-nums;
}
.step-card{
  flex:1 1 auto;
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  padding:20px 22px;
  box-shadow:var(--sh-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-card-h);border-color:var(--c-primary-l);}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.step-card p{font-size:14.5px;color:var(--t-sub);line-height:1.8;}
.step-card .tip{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:12px;
  font-size:13px;color:var(--c-accent-d);
  background:#FFF1E8;border-radius:var(--r-pill);
  padding:4px 12px;
}
.side-panel{
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
  position:sticky;
  top:96px;
}
.side-panel .cover{width:100%;aspect-ratio:4/3;object-fit:cover;}
.side-panel .body{padding:22px;}
.side-panel h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.side-panel p{font-size:14.5px;color:var(--t-sub);line-height:1.8;}
.check-list{margin-top:16px;display:grid;gap:10px;}
.check-list li{
  position:relative;
  padding-left:26px;
  font-size:14.5px;
  color:var(--t-sub);
  line-height:1.7;
}
.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free","Font Awesome 6 Pro",sans-serif;
  font-weight:900;
  position:absolute;left:0;top:2px;
  color:var(--c-success);
  font-size:12px;
}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:0 28px;
  align-items:start;
}
.faq-col{display:grid;gap:14px;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.faq-item:hover{border-color:var(--c-primary-l);background:#FCFDFF;}
.faq-item.is-open{border-color:rgba(31,111,235,.45);box-shadow:var(--sh-card);}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:14px;
  text-align:left;
  background:transparent;
  border:none;
  padding:18px 20px;
  font-size:16.5px;
  font-weight:600;
  color:var(--t-main);
  cursor:pointer;
  line-height:1.6;
}
.faq-q:hover{background:var(--c-primary-l);}
.faq-q .q-ico{
  flex:0 0 auto;
  width:26px;height:26px;border-radius:8px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;
}
.faq-q .arrow{
  margin-left:auto;
  flex:0 0 auto;
  color:var(--t-weak);
  font-size:14px;
  transition:transform .25s ease,color .18s ease;
}
.faq-item.is-open .arrow{transform:rotate(180deg);color:var(--c-primary);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a-inner{
  padding:0 20px 20px 60px;
  font-size:15px;
  line-height:1.85;
  color:var(--t-sub);
}

/* ---------- 入口卡 ---------- */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.entry-card{
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
  display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-h);border-color:var(--c-primary-l);}
.entry-card .thumb{position:relative;}
.entry-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.entry-card .thumb .tag{
  position:absolute;left:12px;top:12px;
  background:rgba(255,255,255,.94);
  color:var(--c-primary-d);
  font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:var(--r-pill);
}
.entry-card .body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.entry-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.entry-card p{font-size:14.5px;color:var(--t-sub);line-height:1.8;flex:1 1 auto;}
.entry-card .go{
  margin-top:18px;
  font-size:14.5px;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
}
.entry-card .go i{transition:transform .2s ease;}
.entry-card:hover .go i{transform:translateX(3px);}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:linear-gradient(120deg,#1544A0 0%,var(--c-primary) 60%,#2C7BF2 100%);
  color:#fff;
  border-radius:20px;
  padding:48px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  background:radial-gradient(circle,rgba(255,255,255,.16) 0%,rgba(255,255,255,0) 70%);
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.35;position:relative;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.84);max-width:600px;position:relative;}
.cta-band .btn{position:relative;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-footer);
  color:#C6D0DE;
  margin-top:80px;
  border-top:3px solid var(--c-primary);
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding:56px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px;}
.site-footer p{font-size:14px;line-height:1.85;color:#9AA7B8;}
.footer-col h4{
  font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{
  font-size:14px;color:#9AA7B8;
  display:inline-block;
}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{font-size:14px;color:#9AA7B8;display:flex;gap:10px;align-items:flex-start;line-height:1.7;}
.footer-contact i{color:var(--c-primary);margin-top:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8695A8;
}
.footer-bottom a{color:#8695A8;}
.footer-bottom a:hover{color:#fff;}
.to-top{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-pill);
  color:#C6D0DE;
  font-size:13px;
}
.to-top:hover{background:rgba(255,255,255,.08);color:#fff;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1200px){
  .container{padding-left:20px;padding-right:20px;}
}
@media screen and (max-width:1024px){
  .section{padding:64px 0;}
  .hero{padding:52px 0 44px;}
  .hero-copy h1{font-size:34px;}
  .point-grid{grid-template-columns:repeat(2,1fr);}
  .steps-wrap{grid-template-columns:1fr;gap:32px;}
  .side-panel{position:static;}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .main-nav{gap:2px;}
  .main-nav a{padding:8px 9px;font-size:14px;}
}
@media screen and (max-width:880px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav{
    position:absolute;
    left:0;right:0;top:100%;
    background:#fff;
    border-bottom:1px solid var(--c-border);
    box-shadow:0 14px 30px rgba(16,24,40,.10);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:10px 16px 16px;
    margin-left:0;
    display:none;
  }
  body.nav-open .main-nav{display:flex;}
  .main-nav a{
    border-radius:0;
    padding:15px 4px 15px 12px;
    font-size:16px;
    border-bottom:1px solid var(--c-border);
    border-left:3px solid transparent;
  }
  .main-nav a::after{display:none;}
  .main-nav a.active{border-left-color:var(--c-primary);background:var(--c-primary-l);}
  .main-nav a:last-child{border-bottom:none;}
  .nav-actions .link-secondary{display:none;}
  .nav-cta{
    display:none;
  }
  .nav-cta.mobile-cta{
    display:inline-flex;
    width:100%;
    margin-top:14px;
    height:48px;
  }
}
@media screen and (max-width:768px){
  .section{padding:52px 0;}
  .hero-copy h1{font-size:29px;}
  .hero-copy .lead{font-size:16px;}
  .section-head h2{font-size:24px;}
  .point-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;gap:0;}
  .faq-col+.faq-col{margin-top:14px;}
  .entry-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-strip .stat{border-right:none;border-bottom:1px solid var(--c-border);}
  .stat-strip .stat:nth-child(odd){border-right:1px solid var(--c-border);}
  .stat-strip .stat:nth-last-child(-n+2){border-bottom:none;}
  .cta-band{padding:36px 26px;border-radius:16px;}
  .cta-band h2{font-size:22px;}
  .footer-top{grid-template-columns:1fr;gap:30px;padding:44px 0 32px;}
  .faq-a-inner{padding-left:20px;}
}
@media screen and (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:16px;}
  .brand-text small{display:none;}
  .hero-copy h1{font-size:26px;}
  .hero-actions .btn{width:100%;}
  .btn{padding:0 20px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-strip .stat{border-right:none !important;border-bottom:1px solid var(--c-border);}
  .stat-strip .stat:last-child{border-bottom:none;}
  .section-head h2{font-size:22px;}
  .faq-q{font-size:15.5px;padding:16px;}
}