/* roulang page: index */
:root{
  --rl-primary:#1F5AA6;
  --rl-primary-dark:#123C77;
  --rl-accent:#E86A2C;
  --rl-ink:#101C2E;
  --rl-text:#33415A;
  --rl-muted:#5B6B82;
  --rl-soft:#8A97A8;
  --rl-bg:#F5F7FA;
  --rl-surface:#FFFFFF;
  --rl-line:#E2E8F0;
  --rl-tint:#EEF4FC;
  --rl-radius:16px;
  --rl-radius-sm:10px;
  --rl-shadow:0 1px 2px rgba(16,28,46,.04),0 8px 24px rgba(16,28,46,.06);
  --rl-shadow-hover:0 12px 32px rgba(16,28,46,.10);
  --rl-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.8;color:var(--rl-text);background:var(--rl-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--rl-ink);font-weight:700;line-height:1.3;font-family:inherit}
h1{font-size:42px}
h2{font-size:30px}
h3{font-size:22px;font-weight:600}
h4{font-size:18px;font-weight:600}
p{margin:0}
a{color:var(--rl-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--rl-primary-dark)}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--rl-primary);outline-offset:2px}
::selection{background:var(--rl-tint);color:var(--rl-primary-dark)}

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
.rl-section{padding:var(--rl-section) 0}
.rl-section--tint{background:var(--rl-tint)}
.rl-section--white{background:var(--rl-surface)}
.rl-section-head{max-width:760px;margin-bottom:48px}
.rl-section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.rl-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--rl-accent);
  letter-spacing:.04em;margin-bottom:14px;
}
.rl-eyebrow::before{content:"";display:block;width:22px;height:2px;background:var(--rl-accent);border-radius:2px}
.rl-section-head h2{margin-bottom:16px}
.rl-section-head p{color:var(--rl-muted);font-size:16px}
.rl-text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--rl-primary)}
.rl-text-link::after{content:"→";transition:transform .2s ease}
.rl-text-link:hover::after{transform:translateX(4px)}

/* 按钮 */
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--rl-radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.rl-btn--primary{background:var(--rl-primary);color:#fff}
.rl-btn--primary:hover{background:var(--rl-primary-dark);color:#fff;transform:translateY(-1px)}
.rl-btn--ghost{background:#fff;border-color:var(--rl-primary);color:var(--rl-primary)}
.rl-btn--ghost:hover{background:var(--rl-tint);color:var(--rl-primary-dark);transform:translateY(-1px)}
.rl-btn--block{width:100%}

/* 徽章 */
.rl-badge{
  display:inline-block;font-size:12px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:999px;background:var(--rl-tint);color:var(--rl-primary);
}
.rl-badge--accent{background:#fff;border:1px solid var(--rl-accent);color:var(--rl-accent)}

/* 头部导航 */
.rl-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--rl-line);transition:box-shadow .25s ease;
}
.rl-header.is-scrolled{box-shadow:0 6px 22px rgba(16,28,46,.08)}
.rl-header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.rl-logo{display:flex;flex-direction:column;line-height:1.15}
.rl-logo__text{font-size:20px;font-weight:700;color:var(--rl-primary);letter-spacing:.02em}
.rl-logo__text em{font-style:normal;color:var(--rl-primary-dark)}
.rl-logo__sub{font-size:12px;color:var(--rl-soft);margin-top:3px}
.rl-nav{display:flex;align-items:center;gap:4px}
.rl-nav a{
  position:relative;display:inline-block;padding:10px 14px;border-radius:8px;
  font-size:15px;color:var(--rl-muted);transition:color .2s ease,background .2s ease;
}
.rl-nav a:hover{color:var(--rl-primary);background:var(--rl-tint)}
.rl-nav a.is-active{color:var(--rl-primary);font-weight:600}
.rl-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--rl-primary);border-radius:2px;
}
.rl-header__cta{display:flex;align-items:center;gap:12px}
.rl-burger{
  display:none;width:44px;height:44px;border:1px solid var(--rl-line);border-radius:10px;
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.rl-burger span{display:block;width:18px;height:2px;background:var(--rl-ink);border-radius:2px;position:relative}
.rl-burger span::before,.rl-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--rl-ink);border-radius:2px;
}
.rl-burger span::before{top:-6px}
.rl-burger span::after{top:6px}

/* 移动抽屉 */
.rl-drawer-mask{
  position:fixed;inset:0;background:rgba(16,28,46,.42);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:90;
}
.rl-drawer-mask.is-open{opacity:1;visibility:visible}
.rl-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;background:#fff;z-index:100;
  transform:translateX(102%);transition:transform .28s ease;padding:24px;overflow-y:auto;
  box-shadow:-12px 0 32px rgba(16,28,46,.14);
}
.rl-drawer.is-open{transform:translateX(0)}
.rl-drawer__top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:20px}
.rl-drawer__close{
  width:36px;height:36px;border:1px solid var(--rl-line);background:#fff;border-radius:10px;
  font-size:20px;line-height:1;color:var(--rl-muted);cursor:pointer;
}
.rl-drawer__nav{display:flex;flex-direction:column;border-top:1px solid var(--rl-line)}
.rl-drawer__nav a{
  height:52px;display:flex;align-items:center;font-size:16px;color:var(--rl-ink);
  border-bottom:1px solid var(--rl-line);padding:0 4px;
}
.rl-drawer__nav a.is-active{color:var(--rl-primary);font-weight:600}
.rl-drawer__cta{margin-top:24px;width:100%}

/* Hero */
.rl-hero{background:#fff;padding:72px 0 88px;border-bottom:1px solid var(--rl-line)}
.rl-hero__brand{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--rl-tint);color:var(--rl-primary);font-size:13px;font-weight:600;margin-bottom:20px;
}
.rl-hero h1{margin-bottom:20px}
.rl-hero__lead{font-size:17px;color:var(--rl-muted);max-width:560px;margin-bottom:28px}
.rl-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.rl-hero__tags{display:flex;flex-wrap:wrap;gap:0;font-size:13px;color:var(--rl-soft)}
.rl-hero__tags li{padding:0 14px;border-left:1px solid var(--rl-line);line-height:1.6}
.rl-hero__tags li:first-child{padding-left:0;border-left:none}
.rl-hero__media{
  border-radius:var(--rl-radius);overflow:hidden;box-shadow:var(--rl-shadow);
  aspect-ratio:4/3;background:var(--rl-tint);
}
.rl-hero__media img{width:100%;height:100%;object-fit:cover}
.rl-hero__note{
  margin-top:16px;font-size:13px;color:var(--rl-soft);display:flex;align-items:center;gap:8px;
}
.rl-hero__note::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--rl-accent);flex:0 0 auto}

/* 痛点时间轴 */
.rl-steps{border-left:1px solid var(--rl-line);padding-left:32px;display:flex;flex-direction:column;gap:40px}
.rl-step{display:flex;gap:24px;align-items:flex-start}
.rl-step__num{
  font-size:32px;font-weight:700;color:var(--rl-accent);line-height:1;
  font-variant-numeric:tabular-nums;flex:0 0 auto;min-width:52px;
}
.rl-step__body h3{margin-bottom:10px}
.rl-step__body p{color:var(--rl-muted);font-size:15px;max-width:640px}

/* 图文错位 */
.rl-split{display:flex;flex-direction:column;gap:72px}
.rl-split__item{align-items:center}
.rl-split__media{border-radius:var(--rl-radius);overflow:hidden;box-shadow:var(--rl-shadow);aspect-ratio:3/2;background:var(--rl-tint)}
.rl-split__media img{width:100%;height:100%;object-fit:cover}
.rl-split__body h3{margin-bottom:14px}
.rl-split__body p{color:var(--rl-muted);font-size:15px;margin-bottom:18px}

/* 数据条 */
.rl-stats{
  display:grid;grid-template-columns:repeat(4,1fr);background:#fff;
  border:1px solid var(--rl-line);border-radius:var(--rl-radius);overflow:hidden;box-shadow:var(--rl-shadow);
}
.rl-stat{padding:32px 24px;border-right:1px solid var(--rl-line)}
.rl-stat:last-child{border-right:none}
.rl-stat__num{
  font-size:36px;font-weight:700;color:var(--rl-primary);line-height:1.15;margin-bottom:8px;
  font-variant-numeric:tabular-nums;
}
.rl-stat__num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--rl-primary)}
.rl-stat p{font-size:13px;color:var(--rl-soft);line-height:1.7}

/* 证言 */
.rl-quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.rl-quote{
  background:#fff;border:1px solid var(--rl-line);border-radius:var(--rl-radius);
  padding:32px;box-shadow:var(--rl-shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.rl-quote:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover)}
.rl-quote__mark{font-size:40px;line-height:1;color:var(--rl-accent);font-weight:700;margin-bottom:12px}
.rl-quote__text{font-size:16px;color:var(--rl-text);margin-bottom:22px}
.rl-quote__meta{display:flex;align-items:center;gap:12px;border-top:1px solid var(--rl-line);padding-top:18px}
.rl-quote__avatar{
  width:40px;height:40px;border-radius:50%;background:var(--rl-tint);color:var(--rl-primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:0 0 auto;
}
.rl-quote__name{font-size:15px;font-weight:600;color:var(--rl-ink);line-height:1.4}
.rl-quote__role{font-size:13px;color:var(--rl-soft)}

/* 资讯列表 */
.rl-post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.rl-post-card{
  background:#fff;border:1px solid var(--rl-line);border-radius:var(--rl-radius);
  overflow:hidden;box-shadow:var(--rl-shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.rl-post-card:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover)}
.rl-post-card__link{display:block;color:inherit}
.rl-post-card__link:hover{color:inherit}
.rl-post-card__media{aspect-ratio:3/2;background:var(--rl-tint);overflow:hidden}
.rl-post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rl-post-card:hover .rl-post-card__media img{transform:scale(1.03)}
.rl-post-card__body{padding:24px}
.rl-post-card__title{
  font-size:18px;font-weight:600;line-height:1.5;margin:12px 0 10px;color:var(--rl-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.rl-post-card:hover .rl-post-card__title{color:var(--rl-primary)}
.rl-post-card__desc{
  font-size:14px;color:var(--rl-muted);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rl-post-card__meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--rl-line);padding-top:16px;font-size:13px;color:var(--rl-soft);
}
.rl-post-card__arrow{color:var(--rl-primary);font-weight:600}
.rl-empty{
  background:#fff;border:1px dashed var(--rl-line);border-radius:var(--rl-radius);
  padding:56px 24px;text-align:center;color:var(--rl-soft);
}
.rl-empty__icon{
  width:56px;height:56px;border-radius:50%;background:var(--rl-tint);color:var(--rl-primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;margin:0 auto 16px;
}

/* FAQ */
.rl-faq{background:#fff;border:1px solid var(--rl-line);border-radius:var(--rl-radius);overflow:hidden;box-shadow:var(--rl-shadow)}
.rl-faq.accordion{margin:0;background:#fff}
.rl-faq .accordion-item{border-bottom:1px solid var(--rl-line);background:#fff}
.rl-faq .accordion-item:last-child{border-bottom:none}
.rl-faq .accordion-title{
  position:relative;display:block;padding:0 64px 0 24px;height:56px;line-height:56px;
  font-size:16px;font-weight:600;color:var(--rl-ink);border:none;background:#fff;
  transition:background .2s ease,color .2s ease;
}
.rl-faq .accordion-title:hover{background:var(--rl-tint);color:var(--rl-primary-dark)}
.rl-faq .accordion-title::before{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:22px;line-height:1;color:var(--rl-muted);border:none;margin:0;padding:0;height:auto;width:auto;
}
.rl-faq .accordion-item.is-active .accordion-title{background:var(--rl-bg);color:var(--rl-primary-dark)}
.rl-faq .accordion-item.is-active .accordion-title::before{content:"−";color:var(--rl-primary)}
.rl-faq .accordion-content{
  background:#fff;padding:0 64px 24px 24px;border:none;color:var(--rl-muted);font-size:15px;line-height:1.8;
}
.rl-faq .accordion-content p{margin-bottom:10px}
.rl-faq .accordion-content p:last-child{margin-bottom:0}
.rl-faq .accordion-content::before{
  content:"";display:block;width:2px;height:22px;background:var(--rl-tint);margin-bottom:12px;
}

/* CTA + 表单 */
.rl-cta{background:var(--rl-primary-dark);color:#fff;padding:var(--rl-section) 0}
.rl-cta h2{color:#fff;margin-bottom:16px}
.rl-cta__lead{color:rgba(255,255,255,.78);font-size:16px;margin-bottom:26px;max-width:460px}
.rl-cta__points{display:flex;flex-direction:column;gap:12px;margin-bottom:32px}
.rl-cta__points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,.82)}
.rl-cta__points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--rl-accent);margin-top:9px;flex:0 0 auto;
}
.rl-form-card{background:#fff;border-radius:var(--rl-radius);padding:28px;box-shadow:0 18px 40px rgba(8,20,40,.22);color:var(--rl-text)}
.rl-form-card h3{font-size:18px;margin-bottom:6px}
.rl-form-card__hint{font-size:13px;color:var(--rl-soft);margin-bottom:20px}
.rl-field{margin-bottom:16px}
.rl-field label{display:block;font-size:13px;font-weight:600;color:var(--rl-ink);margin-bottom:8px}
.rl-field input,.rl-field textarea{
  width:100%;border:1px solid #D8E1EC;border-radius:8px;background:#fff;color:var(--rl-ink);
  padding:0 14px;height:48px;line-height:46px;transition:border-color .2s ease,box-shadow .2s ease;
}
.rl-field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.rl-field input::placeholder,.rl-field textarea::placeholder{color:var(--rl-soft)}
.rl-field input:focus,.rl-field textarea:focus{
  outline:none;border-color:var(--rl-primary);box-shadow:0 0 0 1px var(--rl-primary);
}
.rl-form-msg{font-size:13px;margin-top:12px;color:var(--rl-accent);display:none}
.rl-form-msg.is-show{display:block}

/* 页脚 */
.rl-footer{background:var(--rl-ink);color:#C6CFDC;padding:64px 0 0}
.rl-footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.rl-footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.rl-footer p{font-size:14px;color:#8A97A8;line-height:1.8}
.rl-footer .rl-logo__text{color:#fff}
.rl-footer .rl-logo__text em{color:#8AB6EC}
.rl-footer .rl-logo__sub{color:#8A97A8}
.rl-footer__links{display:flex;flex-direction:column;gap:10px}
.rl-footer__links a{font-size:14px;color:#C6CFDC}
.rl-footer__links a:hover{color:var(--rl-accent)}
.rl-footer__contact li{font-size:14px;color:#8A97A8;margin-bottom:10px;line-height:1.7}
.rl-footer__contact strong{color:#C6CFDC;font-weight:600}
.rl-footer__bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:#8A97A8;
}

/* 响应式 */
@media screen and (max-width:1024px){
  :root{--rl-section:64px}
  .rl-nav{display:none}
  .rl-header__cta .rl-btn{display:none}
  .rl-burger{display:flex}
  .rl-hero{padding:56px 0 64px}
  h1{font-size:34px}
  h2{font-size:26px}
  .rl-stats{grid-template-columns:repeat(2,1fr)}
  .rl-stat{border-bottom:1px solid var(--rl-line)}
  .rl-stat:nth-child(2n){border-right:none}
  .rl-stat:nth-child(n+3){border-bottom:none}
  .rl-footer__grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media screen and (max-width:768px){
  .rl-hero__lead{font-size:16px}
  .rl-split{gap:56px}
  .rl-post-grid{grid-template-columns:1fr}
  .rl-quotes{grid-template-columns:1fr}
  .rl-steps{padding-left:20px;gap:32px}
  .rl-step{gap:16px}
  .rl-step__num{font-size:26px;min-width:42px}
  .rl-footer__grid{grid-template-columns:1fr;gap:28px}
}
@media screen and (max-width:520px){
  :root{--rl-section:52px}
  .grid-container{padding-left:18px;padding-right:18px}
  h1{font-size:28px}
  h2{font-size:22px}
  h3{font-size:18px}
  .rl-header__inner{height:60px}
  .rl-logo__text{font-size:18px}
  .rl-hero{padding:40px 0 52px}
  .rl-hero__tags li{padding:0 10px;font-size:12px}
  .rl-hero__media{aspect-ratio:16/11;border-radius:12px;box-shadow:none}
  .rl-btn{width:100%;padding:0 20px}
  .rl-hero__actions{gap:10px}
  .rl-stats{grid-template-columns:1fr}
  .rl-stat{border-right:none;border-bottom:1px solid var(--rl-line);padding:24px 20px}
  .rl-stat:last-child{border-bottom:none}
  .rl-stat:nth-child(n+3){border-bottom:1px solid var(--rl-line)}
  .rl-quote{padding:24px}
  .rl-post-card__body{padding:20px}
  .rl-faq .accordion-title{padding-right:52px;padding-left:20px;font-size:15px}
  .rl-faq .accordion-content{padding:0 20px 20px 20px}
  .rl-form-card{padding:20px}
  .rl-footer{padding-top:48px}
}

/* roulang page: article */
:root{
  --rl-primary:#1F5AA6;
  --rl-primary-dark:#123C77;
  --rl-accent:#E86A2C;
  --rl-ink:#101C2E;
  --rl-text:#5B6B82;
  --rl-muted:#8A97A8;
  --rl-bg:#F5F7FA;
  --rl-surface:#FFFFFF;
  --rl-border:#E2E8F0;
  --rl-soft:#EEF4FC;
  --rl-input-border:#D8E1EC;
  --rl-radius:16px;
  --rl-radius-md:12px;
  --rl-radius-sm:10px;
  --rl-shadow:0 1px 2px rgba(16,28,46,.04), 0 8px 24px rgba(16,28,46,.06);
  --rl-shadow-hover:0 12px 32px rgba(16,28,46,.10);
  --rl-container:1200px;
  --rl-read:760px;
  --rl-ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--rl-ink);
  background:var(--rl-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--rl-primary);text-decoration:none;transition:color var(--rl-ease);}
a:hover{color:var(--rl-primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--rl-ink);line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--rl-primary);outline-offset:2px;}

.grid-container{max-width:var(--rl-container);margin:0 auto;padding:0 24px;}
.grid-container.full{max-width:none;}

/* ---------- 按钮 ---------- */
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--rl-radius-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all var(--rl-ease);white-space:nowrap;
}
.rl-btn--primary{background:var(--rl-primary);color:#fff;}
.rl-btn--primary:hover{background:var(--rl-primary-dark);color:#fff;transform:translateY(-1px);}
.rl-btn--ghost{background:#fff;color:var(--rl-primary);border-color:var(--rl-primary);}
.rl-btn--ghost:hover{background:var(--rl-soft);color:var(--rl-primary-dark);}
.rl-btn--light{background:#fff;color:var(--rl-primary-dark);}
.rl-btn--light:hover{background:var(--rl-soft);color:var(--rl-primary-dark);}
.rl-btn--sm{height:40px;padding:0 20px;font-size:14px;}
.rl-link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--rl-primary);}
.rl-link-arrow i{transition:transform var(--rl-ease);font-size:12px;}
.rl-link-arrow:hover{color:var(--rl-primary-dark);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;}
.rl-link-arrow:hover i{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.rl-badge{
  display:inline-block;padding:3px 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--rl-soft);color:var(--rl-primary);
}
.rl-badge--accent{background:#fff;border:1px solid var(--rl-accent);color:var(--rl-accent);}

/* ---------- 顶部导航 ---------- */
.rl-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--rl-border);
  transition:box-shadow var(--rl-ease);
}
.rl-header.is-scrolled{box-shadow:0 6px 20px rgba(16,28,46,.07);}
.rl-header__inner{
  display:flex;align-items:center;gap:32px;
  height:72px;
}
.rl-logo{display:flex;flex-direction:column;justify-content:center;gap:2px;flex-shrink:0;}
.rl-logo__text{font-size:20px;font-weight:700;color:var(--rl-primary);letter-spacing:.2px;line-height:1.2;}
.rl-logo__text em{font-style:normal;color:var(--rl-ink);}
.rl-logo__sub{font-size:12px;color:var(--rl-muted);line-height:1.2;}
.rl-nav{display:flex;align-items:center;gap:28px;margin-left:auto;}
.rl-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--rl-ink);
  padding:6px 0;transition:color var(--rl-ease);
}
.rl-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--rl-primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--rl-ease);
}
.rl-nav a:hover{color:var(--rl-primary);}
.rl-nav a:hover::after{transform:scaleX(1);}
.rl-nav a.is-active{color:var(--rl-primary);font-weight:600;}
.rl-nav a.is-active::after{transform:scaleX(1);}
.rl-header__cta{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.rl-burger{
  display:none;width:44px;height:44px;border:1px solid var(--rl-border);border-radius:var(--rl-radius-sm);
  background:#fff;cursor:pointer;position:relative;
}
.rl-burger span,
.rl-burger span::before,
.rl-burger span::after{
  content:"";position:absolute;left:50%;top:50%;width:18px;height:2px;background:var(--rl-ink);
  transform:translate(-50%,-50%);transition:all var(--rl-ease);
}
.rl-burger span::before{top:-6px;}
.rl-burger span::after{top:6px;}
.rl-burger[aria-expanded="true"] span{background:transparent;}
.rl-burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.rl-burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

.rl-drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:340px;
  background:#fff;z-index:80;padding:24px;overflow-y:auto;
  transform:translateX(100%);transition:transform 240ms ease;
  box-shadow:-12px 0 32px rgba(16,28,46,.12);
}
.rl-drawer.is-open{transform:translateX(0);}
.rl-drawer nav{display:flex;flex-direction:column;margin-top:16px;}
.rl-drawer nav a{
  height:52px;display:flex;align-items:center;font-size:16px;color:var(--rl-ink);
  border-bottom:1px solid var(--rl-border);
}
.rl-drawer nav a.is-active{color:var(--rl-primary);font-weight:600;}
.rl-drawer .rl-btn{width:100%;margin-top:24px;}
.rl-drawer__close{
  width:44px;height:44px;border:1px solid var(--rl-border);background:#fff;border-radius:var(--rl-radius-sm);
  display:flex;align-items:center;justify-content:center;cursor:pointer;margin-left:auto;color:var(--rl-ink);
}
.rl-drawer__meta{margin-top:24px;font-size:13px;color:var(--rl-muted);line-height:1.9;}
.rl-overlay{
  position:fixed;inset:0;background:rgba(16,28,46,.42);z-index:70;
  opacity:0;visibility:hidden;transition:opacity var(--rl-ease),visibility var(--rl-ease);
}
.rl-overlay.is-open{opacity:1;visibility:visible;}

/* ---------- 面包屑 ---------- */
.rl-crumb{background:var(--rl-soft);border-bottom:1px solid var(--rl-border);}
.rl-crumb__inner{
  display:flex;align-items:center;gap:10px;height:48px;
  font-size:13px;color:var(--rl-text);overflow:hidden;
}
.rl-crumb a{color:var(--rl-text);}
.rl-crumb a:hover{color:var(--rl-primary);}
.rl-crumb i{font-size:10px;color:var(--rl-muted);}
.rl-crumb__now{
  color:var(--rl-ink);font-weight:600;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52%;
}

/* ---------- 文章头部 ---------- */
.rl-article-head{padding:48px 0 32px;background:#fff;border-bottom:1px solid var(--rl-border);}
.rl-article-head__wrap{max-width:var(--rl-read);margin:0 auto;}
.rl-article-head h1{font-size:32px;line-height:1.4;margin-bottom:18px;letter-spacing:-.2px;}
.rl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:12px;color:var(--rl-muted);}
.rl-meta span{display:inline-flex;align-items:center;gap:6px;}
.rl-cover{
  margin:32px auto 0;max-width:var(--rl-read);
  border-radius:var(--rl-radius);overflow:hidden;box-shadow:var(--rl-shadow);
  aspect-ratio:16/9;background:var(--rl-soft);
}
.rl-cover img{width:100%;height:100%;object-fit:cover;border-radius:var(--rl-radius);}

/* ---------- 文章主体 ---------- */
.rl-main{padding:56px 0 88px;}
.rl-layout{display:grid;grid-template-columns:minmax(0,var(--rl-read)) 260px;gap:48px;justify-content:center;}
.rl-panel{
  background:var(--rl-surface);border:1px solid var(--rl-border);border-radius:var(--rl-radius);
  box-shadow:var(--rl-shadow);
}
.rl-article-body{padding:40px;}
.rl-prose{font-size:16px;line-height:1.9;color:#26364C;}
.rl-prose p{margin:0 0 16px;}
.rl-prose h2{
  font-size:24px;line-height:1.4;margin:32px 0 16px;padding-left:14px;position:relative;
}
.rl-prose h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--rl-primary);
}
.rl-prose h3{font-size:20px;line-height:1.45;margin:26px 0 12px;font-weight:600;}
.rl-prose h4{font-size:18px;margin:22px 0 10px;font-weight:600;}
.rl-prose ul{margin:0 0 16px;padding-left:0;}
.rl-prose ul li{position:relative;padding-left:20px;margin-bottom:8px;}
.rl-prose ul li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;background:var(--rl-accent);
}
.rl-prose ol{margin:0 0 16px;counter-reset:rl-ol;}
.rl-prose ol li{position:relative;padding-left:28px;margin-bottom:8px;counter-increment:rl-ol;}
.rl-prose ol li::before{
  content:counter(rl-ol,decimal-leading-zero);
  position:absolute;left:0;top:2px;font-size:13px;font-weight:700;color:var(--rl-primary);
}
.rl-prose blockquote{
  margin:20px 0;padding:16px 20px;background:var(--rl-soft);
  border-left:4px solid var(--rl-primary);border-radius:0 var(--rl-radius-md) var(--rl-radius-md) 0;
  color:#2A3B52;
}
.rl-prose blockquote p:last-child{margin-bottom:0;}
.rl-prose img{border-radius:var(--rl-radius-md);margin:20px auto;height:auto;}
.rl-prose figure{margin:20px 0;}
.rl-prose table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;}
.rl-prose th,.rl-prose td{border:1px solid var(--rl-border);padding:10px 14px;text-align:left;}
.rl-prose th{background:var(--rl-soft);font-weight:600;color:var(--rl-ink);}
.rl-prose a{color:var(--rl-primary);text-decoration:underline;text-underline-offset:3px;}
.rl-prose hr{border:0;border-top:1px solid var(--rl-border);margin:28px 0;}
.rl-prose strong{color:var(--rl-ink);}
.rl-empty{text-align:center;padding:56px 24px;}
.rl-empty i{font-size:34px;color:var(--rl-primary);}
.rl-empty h2{font-size:22px;margin:18px 0 8px;}
.rl-empty p{color:var(--rl-text);margin-bottom:24px;}

/* ---------- 侧栏 ---------- */
.rl-aside{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px;align-self:start;}
.rl-side-card{background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-radius);padding:22px;box-shadow:var(--rl-shadow);}
.rl-side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.rl-side-card h3 i{color:var(--rl-accent);font-size:14px;}
.rl-side-list li{
  display:flex;gap:10px;font-size:14px;color:var(--rl-text);line-height:1.7;
  padding:10px 0;border-bottom:1px dashed var(--rl-border);
}
.rl-side-list li:last-child{border-bottom:0;padding-bottom:0;}
.rl-side-list b{
  flex-shrink:0;width:22px;height:22px;border-radius:6px;background:var(--rl-soft);color:var(--rl-primary);
  font-size:12px;display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.rl-side-links a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;color:var(--rl-ink);padding:11px 0;border-bottom:1px solid var(--rl-border);
}
.rl-side-links a:last-child{border-bottom:0;}
.rl-side-links a i{font-size:11px;color:var(--rl-muted);transition:transform var(--rl-ease);}
.rl-side-links a:hover{color:var(--rl-primary);}
.rl-side-links a:hover i{transform:translateX(3px);color:var(--rl-primary);}

/* ---------- 相关推荐 ---------- */
.rl-section{padding:72px 0;}
.rl-section--white{background:#fff;border-top:1px solid var(--rl-border);}
.rl-section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.rl-section__head h2{font-size:28px;}
.rl-section__head p{font-size:14px;color:var(--rl-text);margin-top:8px;}
.rl-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rl-card{
  background:var(--rl-surface);border:1px solid var(--rl-border);border-radius:var(--rl-radius);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--rl-shadow);transition:transform var(--rl-ease),box-shadow var(--rl-ease);
}
.rl-card:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover);}
.rl-card__thumb{aspect-ratio:3/2;overflow:hidden;background:var(--rl-soft);}
.rl-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease;}
.rl-card:hover .rl-card__thumb img{transform:scale(1.04);}
.rl-card__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rl-card__body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rl-card:hover .rl-card__body h3{color:var(--rl-primary);}
.rl-card__body p{
  font-size:14px;color:var(--rl-text);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rl-card__foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--rl-border);
  display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--rl-muted);
}
.rl-back-row{display:flex;justify-content:center;margin-top:40px;}

/* ---------- 提示条 ---------- */
.rl-tips{background:var(--rl-soft);border-radius:var(--rl-radius);padding:28px 32px;margin-top:32px;}
.rl-tips h3{font-size:18px;margin-bottom:16px;}
.rl-tips__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rl-tips__grid div{background:#fff;border-radius:var(--rl-radius-md);padding:18px;border:1px solid var(--rl-border);}
.rl-tips__grid strong{display:block;font-size:15px;color:var(--rl-primary);margin-bottom:6px;}
.rl-tips__grid span{font-size:14px;color:var(--rl-text);line-height:1.7;}

/* ---------- CTA ---------- */
.rl-cta{background:var(--rl-soft);padding:72px 0;}
.rl-cta__box{
  display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:center;
  background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-radius);
  padding:40px;box-shadow:var(--rl-shadow);
}
.rl-cta__box h2{font-size:28px;margin-bottom:12px;}
.rl-cta__box p{color:var(--rl-text);font-size:15px;margin-bottom:24px;}
.rl-cta__actions{display:flex;flex-wrap:wrap;gap:14px;}
.rl-form{display:grid;gap:14px;}
.rl-field label{display:block;font-size:13px;font-weight:600;color:var(--rl-ink);margin-bottom:6px;}
.rl-field input,.rl-field textarea{
  width:100%;height:48px;border:1px solid var(--rl-input-border);border-radius:8px;
  padding:0 14px;font-size:15px;font-family:inherit;color:var(--rl-ink);background:#fff;
  transition:border-color var(--rl-ease),box-shadow var(--rl-ease);
}
.rl-field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.rl-field input:focus,.rl-field textarea:focus{
  outline:none;border-color:var(--rl-primary);box-shadow:0 0 0 2px rgba(31,90,166,.18);
}
.rl-form small{font-size:13px;color:var(--rl-accent);}

/* ---------- 页脚 ---------- */
.rl-footer{background:#101C2E;color:#C8D3E2;padding:64px 0 0;font-size:14px;}
.rl-footer .rl-logo__text{color:#fff;}
.rl-footer .rl-logo__text em{color:#7FB0EA;}
.rl-footer .rl-logo__sub{color:var(--rl-muted);}
.rl-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.rl-footer p{line-height:1.9;color:#9FB0C6;}
.rl-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.rl-footer__links{display:flex;flex-direction:column;gap:10px;}
.rl-footer__links a{color:#C8D3E2;}
.rl-footer__links a:hover{color:var(--rl-accent);}
.rl-footer__contact li{color:#9FB0C6;line-height:1.9;margin-bottom:8px;}
.rl-footer__contact strong{color:#fff;font-weight:600;}
.rl-footer__bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#8A97A8;flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .rl-nav{display:none;}
  .rl-burger{display:block;}
  .rl-header__inner{height:64px;gap:16px;}
  .rl-header__cta .rl-btn{display:none;}
  .rl-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .rl-aside{position:static;flex-direction:row;flex-wrap:wrap;}
  .rl-aside > *{flex:1 1 300px;}
  .rl-article-head h1{font-size:26px;}
  .rl-card__body{padding:20px;}
}
@media screen and (max-width:900px){
  .rl-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rl-cta__box{grid-template-columns:minmax(0,1fr);padding:32px;}
  .rl-tips__grid{grid-template-columns:minmax(0,1fr);}
  .rl-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media screen and (max-width:640px){
  .grid-container{padding:0 18px;}
  .rl-article-head{padding:32px 0 24px;}
  .rl-article-head h1{font-size:22px;}
  .rl-article-body{padding:22px;}
  .rl-cover{border-radius:0;margin-top:24px;}
  .rl-cover img{border-radius:0;}
  .rl-main{padding:32px 0 56px;}
  .rl-section{padding:56px 0;}
  .rl-section__head{flex-direction:column;align-items:flex-start;gap:10px;}
  .rl-section__head h2{font-size:22px;}
  .rl-cards{grid-template-columns:minmax(0,1fr);}
  .rl-prose h2{font-size:20px;}
  .rl-prose h3{font-size:18px;}
  .rl-cta{padding:56px 0;}
  .rl-cta__box h2{font-size:22px;}
  .rl-cta__actions .rl-btn{width:100%;}
  .rl-footer__grid{grid-template-columns:minmax(0,1fr);}
  .rl-footer__bottom{flex-direction:column;align-items:flex-start;}
  .rl-crumb__now{max-width:44%;}
}

/* roulang page: category1 */
:root{
  --rl-primary:#1F5AA6;
  --rl-primary-dark:#123C77;
  --rl-primary-soft:#EEF4FC;
  --rl-accent:#E86A2C;
  --rl-ink:#101C2E;
  --rl-text:#5B6B82;
  --rl-muted:#8A97A8;
  --rl-line:#E2E8F0;
  --rl-input-line:#D8E1EC;
  --rl-bg:#F5F7FA;
  --rl-surface:#FFFFFF;
  --rl-footer:#101C2E;
  --rl-radius:16px;
  --rl-radius-sm:10px;
  --rl-shadow:0 1px 2px rgba(16,28,46,.04), 0 8px 24px rgba(16,28,46,.06);
  --rl-shadow-hover:0 12px 32px rgba(16,28,46,.10);
  --rl-section-y:88px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--rl-text);
  background:var(--rl-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--rl-ink);font-weight:700;line-height:1.32}
h3,h4{font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--rl-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--rl-primary-dark)}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--rl-primary);outline-offset:2px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
.rl-hero__row{row-gap:32px}
.rl-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- 顶部导航 ---------- */
.rl-header{
  position:sticky;top:0;z-index:100;
  background:#FFFFFF;
  border-bottom:1px solid var(--rl-line);
  transition:box-shadow .25s ease;
}
.rl-header.is-scrolled{box-shadow:0 6px 20px rgba(16,28,46,.08)}
.rl-header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.rl-logo{display:flex;flex-direction:column;justify-content:center;flex:0 0 auto;text-decoration:none}
.rl-logo__text{font-size:20px;font-weight:700;color:var(--rl-primary);line-height:1.2;letter-spacing:.2px}
.rl-logo__text em{font-style:normal;color:var(--rl-primary-dark)}
.rl-logo__sub{font-size:12px;color:var(--rl-muted);line-height:1.5;margin-top:2px;letter-spacing:.2px}
.rl-nav{display:flex;align-items:center;gap:26px;margin:0}
.rl-nav a{position:relative;display:inline-block;padding:8px 0;font-size:15px;color:var(--rl-text);white-space:nowrap}
.rl-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--rl-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.rl-nav a:hover{color:var(--rl-primary)}
.rl-nav a:hover::after{transform:scaleX(1)}
.rl-nav a.is-active{color:var(--rl-primary);font-weight:600}
.rl-nav a.is-active::after{transform:scaleX(1)}
.rl-header__cta{display:flex;align-items:center;gap:8px;flex:0 0 auto}

.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--rl-radius-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rl-btn--primary{background:var(--rl-primary);color:#FFFFFF}
.rl-btn--primary:hover{background:var(--rl-primary-dark);color:#FFFFFF;transform:translateY(-1px)}
.rl-btn--ghost{background:#FFFFFF;color:var(--rl-primary);border-color:var(--rl-primary)}
.rl-btn--ghost:hover{background:var(--rl-primary-soft);color:var(--rl-primary-dark);transform:translateY(-1px)}
.rl-btn--sm{height:40px;padding:0 18px;font-size:14px}

.rl-burger{
  display:none;width:44px;height:44px;border-radius:12px;
  background:#FFFFFF;border:1px solid var(--rl-line);cursor:pointer;
  align-items:center;justify-content:center;padding:0;
}
.rl-burger span{position:relative;display:block;width:20px;height:2px;background:var(--rl-ink);border-radius:2px;transition:background .2s ease}
.rl-burger span::before,.rl-burger span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--rl-ink);border-radius:2px;transition:transform .22s ease;
}
.rl-burger span::before{top:-6px}
.rl-burger span::after{top:6px}
.rl-burger:hover{border-color:var(--rl-primary)}
.rl-burger:hover span,
.rl-burger:hover span::before,
.rl-burger:hover span::after{background:var(--rl-primary)}

/* ---------- 徽章 / 标签 ---------- */
.rl-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--rl-primary-soft);color:var(--rl-primary);font-size:12px;font-weight:600;letter-spacing:.3px;
}
.rl-badge--accent{background:#FFFFFF;border:1px solid var(--rl-accent);color:var(--rl-accent)}

/* ---------- 页头区 ---------- */
.rl-hero{background:#FFFFFF;border-bottom:1px solid var(--rl-line);padding:36px 0 76px}
.rl-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--rl-muted);margin-bottom:28px;flex-wrap:wrap}
.rl-crumb a{color:var(--rl-muted)}
.rl-crumb a:hover{color:var(--rl-primary)}
.rl-crumb em{font-style:normal;color:var(--rl-ink)}
.rl-hero h1{font-size:42px;line-height:1.25;margin:18px 0}
.rl-hero__lead{font-size:17px;line-height:1.9;color:var(--rl-text);max-width:580px}
.rl-hero__actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:30px}
.rl-hero__tags{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:26px;font-size:14px;color:var(--rl-muted)}
.rl-hero__tags li{position:relative}
.rl-hero__tags li+li::before{
  content:"";position:absolute;left:-7px;top:50%;transform:translateY(-50%);
  width:1px;height:12px;background:var(--rl-line);
}
.rl-hero__media{
  margin:0;border-radius:var(--rl-radius);overflow:hidden;
  box-shadow:var(--rl-shadow);background:var(--rl-primary-soft);aspect-ratio:4/3;
}
.rl-hero__media img{width:100%;height:100%;object-fit:cover}

/* ---------- 通用板块 ---------- */
.rl-section{padding:var(--rl-section-y) 0}
.rl-section--surface{background:#FFFFFF}
.rl-section--tight{padding:0 0 var(--rl-section-y)}
.rl-section__head{max-width:760px;margin-bottom:48px}
.rl-section__head h2{font-size:30px;margin:16px 0}
.rl-section__head p{font-size:16px;color:var(--rl-text)}
.rl-step-block{scroll-margin-top:104px}

/* ---------- 步骤轴 ---------- */
.rl-steps{position:relative;padding-left:28px;max-width:900px}
.rl-steps::before{content:"";position:absolute;left:6px;top:10px;bottom:10px;width:1px;background:var(--rl-line)}
.rl-step{position:relative;padding-bottom:38px}
.rl-step:last-child{padding-bottom:0}
.rl-step::before{
  content:"";position:absolute;left:-26px;top:12px;width:9px;height:9px;border-radius:50%;
  background:#FFFFFF;border:2px solid var(--rl-primary);
}
.rl-step__row{display:flex;gap:26px;align-items:flex-start}
.rl-step__num{
  flex:0 0 auto;min-width:58px;font-size:32px;font-weight:700;line-height:1;color:var(--rl-accent);
  font-variant-numeric:tabular-nums;
}
.rl-step__body h3{font-size:22px;margin-bottom:10px}
.rl-step__body p{font-size:16px;color:var(--rl-text);max-width:760px}
.rl-step__note{
  margin-top:12px;font-size:14px;line-height:1.8;color:var(--rl-muted);
  padding-left:14px;border-left:2px solid var(--rl-primary-soft);max-width:760px;
}

/* ---------- 准备清单 ---------- */
.rl-prep__media{
  margin:0;border-radius:var(--rl-radius);overflow:hidden;box-shadow:var(--rl-shadow);
  aspect-ratio:3/2;background:var(--rl-primary-soft);
}
.rl-prep__media img{width:100%;height:100%;object-fit:cover}
.rl-checklist{display:flex;flex-direction:column;gap:20px}
.rl-checklist li{
  display:flex;gap:16px;background:#FFFFFF;border:1px solid var(--rl-line);border-radius:var(--rl-radius);
  padding:22px;box-shadow:var(--rl-shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rl-checklist li:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover);border-color:#CFDCEC}
.rl-checklist__mark{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;background:var(--rl-primary-soft);color:var(--rl-primary);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.rl-checklist h3{font-size:17px;margin-bottom:6px}
.rl-checklist p{font-size:14px;line-height:1.8;color:var(--rl-text)}

/* ---------- 卡片网格 ---------- */
.rl-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.rl-card{
  background:#FFFFFF;border:1px solid var(--rl-line);border-radius:var(--rl-radius);
  padding:24px;box-shadow:var(--rl-shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.rl-card:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover)}
.rl-card h3{font-size:18px;margin-bottom:10px}
.rl-card p{font-size:15px;line-height:1.85;color:var(--rl-text)}
.rl-card__tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--rl-primary-soft);color:var(--rl-primary);font-size:12px;font-weight:600;margin-bottom:14px;
}
.rl-card--accent .rl-card__tag{background:#FFFFFF;border:1px solid var(--rl-accent);color:var(--rl-accent)}

/* ---------- 文章入口条 ---------- */
.rl-entry{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:#FFFFFF;border:1px solid var(--rl-line);border-radius:var(--rl-radius);
  padding:28px 32px;box-shadow:var(--rl-shadow);
}
.rl-entry h3{font-size:20px;margin-bottom:8px}
.rl-entry p{font-size:15px;color:var(--rl-text);max-width:640px}
.rl-entry__link{display:inline-flex;align-items:center;gap:8px;font-size:16px;font-weight:600;white-space:nowrap}
.rl-entry__link::after{content:"→";color:var(--rl-accent);transition:transform .2s ease}
.rl-entry__link:hover::after{transform:translateX(4px)}

/* ---------- CTA ---------- */
.rl-cta{
  background:var(--rl-primary-soft);border-radius:var(--rl-radius);padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.rl-cta h2{font-size:26px;margin-bottom:12px}
.rl-cta p{font-size:15px;color:var(--rl-text);max-width:620px}
.rl-cta__actions{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.rl-footer{background:var(--rl-footer);color:#FFFFFF;padding:72px 0 0;margin-top:0}
.rl-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.rl-footer h4{font-size:16px;color:#FFFFFF;margin-bottom:18px}
.rl-footer p{font-size:14px;line-height:1.9;color:var(--rl-muted)}
.rl-footer .rl-logo__text{color:#FFFFFF}
.rl-footer .rl-logo__text em{color:#8FB4E4}
.rl-footer .rl-logo__sub{color:var(--rl-muted)}
.rl-footer__links{display:flex;flex-direction:column;gap:12px}
.rl-footer__links a{font-size:14px;color:#C6D0DE}
.rl-footer__links a:hover{color:var(--rl-accent)}
.rl-footer__contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--rl-muted)}
.rl-footer__contact strong{color:#C6D0DE;font-weight:600}
.rl-footer__bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--rl-muted);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--rl-section-y:64px}
  .rl-header__inner{height:64px}
  .rl-nav{
    position:fixed;top:0;right:0;z-index:120;height:100%;width:82vw;max-width:360px;
    background:#FFFFFF;flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 32px;margin:0;
    box-shadow:-16px 0 40px rgba(16,28,46,.14);
    transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;
  }
  .rl-nav.is-open{transform:translateX(0)}
  .rl-nav a{height:52px;display:flex;align-items:center;font-size:16px;border-bottom:1px solid var(--rl-line);padding:0}
  .rl-nav a::after{display:none}
  .rl-nav a.is-active{color:var(--rl-primary)}
  .rl-burger{display:inline-flex}
  .rl-header__cta .rl-btn--primary{height:42px;padding:0 16px;font-size:14px}
  .rl-hero{padding:28px 0 60px}
  .rl-hero h1{font-size:34px}
  .rl-hero__lead{font-size:16px}
  .rl-cards{grid-template-columns:1fr}
  .rl-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media screen and (max-width:640px){
  .grid-container{padding-left:16px;padding-right:16px}
  .rl-header__cta .rl-btn--primary{display:none}
  .rl-hero h1{font-size:28px;margin:14px 0}
  .rl-hero__lead{font-size:15px}
  .rl-hero__actions{gap:12px}
  .rl-hero__actions .rl-btn{flex:1 1 auto;padding:0 18px}
  .rl-hero__media{aspect-ratio:16/11}
  .rl-section__head h2{font-size:22px}
  .rl-section__head{margin-bottom:32px}
  .rl-step__row{gap:14px}
  .rl-step__num{font-size:26px;min-width:42px}
  .rl-step__body h3{font-size:19px}
  .rl-step{padding-bottom:30px}
  .rl-checklist li{padding:18px}
  .rl-entry{padding:22px}
  .rl-entry__link{font-size:15px}
  .rl-cta{padding:28px}
  .rl-cta h2{font-size:22px}
  .rl-cta__actions{width:100%}
  .rl-cta__actions .rl-btn{flex:1 1 auto}
  .rl-footer{padding-top:56px}
  .rl-footer__grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
}
body.rl-nav-open{overflow:hidden}

/* roulang page: category2 */
:root{
  --rl-primary:#1F5AA6;
  --rl-primary-dark:#123C77;
  --rl-accent:#E86A2C;
  --rl-ink:#101C2E;
  --rl-text:#3B4A5F;
  --rl-muted:#5B6B82;
  --rl-faint:#8A97A8;
  --rl-bg:#F5F7FA;
  --rl-surface:#FFFFFF;
  --rl-line:#E2E8F0;
  --rl-line-strong:#D8E1EC;
  --rl-soft:#EEF4FC;
  --rl-radius:16px;
  --rl-radius-sm:10px;
  --rl-shadow:0 1px 2px rgba(16,28,46,.04),0 8px 24px rgba(16,28,46,.06);
  --rl-shadow-hover:0 12px 32px rgba(16,28,46,.10);
  --rl-gap:24px;
  --rl-section-gap:72px;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--rl-text);
  background:var(--rl-bg);
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:inherit;
  font-weight:700;
  line-height:1.3;
  color:var(--rl-ink);
}

h1{font-size:42px}
h2{font-size:30px}
h3{font-size:22px;font-weight:600}
h4{font-size:18px;font-weight:600}

p{margin:0 0 16px;font-size:16px;line-height:1.9;font-family:inherit;color:var(--rl-text)}
p:last-child{margin-bottom:0}

a{color:var(--rl-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--rl-primary-dark)}

ul,ol{margin:0;padding:0;list-style:none}

img{max-width:100%;display:block;border:0}

button,input,textarea,select{font-family:inherit;font-size:16px}

button{border:0;background:none;cursor:pointer}

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

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}

.rl-skip{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:#fff;color:var(--rl-primary);padding:10px 18px;border-radius:0 0 10px 0;
}
.rl-skip:focus{left:0}

/* ---------- Header ---------- */
.rl-header{
  position:sticky;top:0;z-index:90;
  background:#fff;
  border-bottom:1px solid var(--rl-line);
  transition:box-shadow .25s ease;
}
.rl-header.is-scrolled{box-shadow:0 6px 22px rgba(16,28,46,.08)}
.rl-header__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}

.rl-logo{display:flex;flex-direction:column;line-height:1.25;text-decoration:none;flex-shrink:0}
.rl-logo__text{font-size:20px;font-weight:700;color:var(--rl-primary);letter-spacing:.2px}
.rl-logo__text em{font-style:normal;color:var(--rl-ink)}
.rl-logo__sub{font-size:12px;color:var(--rl-faint);letter-spacing:.4px}

.rl-nav{display:flex;align-items:center;gap:26px}
.rl-nav a{
  position:relative;
  font-size:15px;
  color:var(--rl-muted);
  padding:6px 0;
  white-space:nowrap;
}
.rl-nav a:hover{color:var(--rl-primary)}
.rl-nav a.is-active{color:var(--rl-primary);font-weight:600}
.rl-nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;
  height:2px;border-radius:2px;background:var(--rl-primary);
}

.rl-header__cta{display:flex;align-items:center;gap:12px}

.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--rl-radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rl-btn--primary{background:var(--rl-primary);color:#fff}
.rl-btn--primary:hover{background:var(--rl-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(31,90,166,.24)}
.rl-btn--ghost{background:#fff;border-color:var(--rl-primary);color:var(--rl-primary)}
.rl-btn--ghost:hover{background:var(--rl-soft);color:var(--rl-primary-dark);transform:translateY(-1px)}
.rl-btn--sm{height:42px;padding:0 20px;font-size:14px}

.rl-burger{
  display:none;width:44px;height:44px;border-radius:var(--rl-radius-sm);
  border:1px solid var(--rl-line);background:#fff;position:relative;
  transition:border-color .2s ease,background-color .2s ease;
}
.rl-burger:hover{border-color:var(--rl-primary);background:var(--rl-soft)}
.rl-burger span,
.rl-burger span::before,
.rl-burger span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--rl-ink);
  transition:background-color .2s ease;
}
.rl-burger span{top:50%;margin-top:-1px}
.rl-burger span::before{content:"";top:-6px;left:0;transform:none}
.rl-burger span::after{content:"";top:6px;left:0;transform:none}

/* ---------- Drawer ---------- */
.rl-mask{
  position:fixed;inset:0;background:rgba(16,28,46,.42);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:95;
}
.rl-mask.is-open{opacity:1;visibility:visible}

.rl-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;
  background:#fff;z-index:100;padding:20px 22px 32px;
  transform:translateX(102%);transition:transform .3s ease;
  box-shadow:-12px 0 32px rgba(16,28,46,.14);
  overflow-y:auto;
}
.rl-drawer.is-open{transform:translateX(0)}
.rl-drawer__head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--rl-line)}
.rl-drawer__close{
  width:40px;height:40px;border-radius:var(--rl-radius-sm);border:1px solid var(--rl-line);
  color:var(--rl-muted);font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.rl-drawer__close:hover{border-color:var(--rl-primary);color:var(--rl-primary);background:var(--rl-soft)}
.rl-drawer__nav{display:flex;flex-direction:column;margin:14px 0 20px}
.rl-drawer__nav a{
  display:flex;align-items:center;height:52px;font-size:16px;color:var(--rl-muted);
  border-bottom:1px solid var(--rl-line);
}
.rl-drawer__nav a:hover{color:var(--rl-primary)}
.rl-drawer__nav a.is-active{color:var(--rl-primary);font-weight:600}
.rl-drawer__cta{width:100%}
.rl-drawer__info{margin-top:22px;font-size:13px;color:var(--rl-faint);line-height:1.9}
.rl-drawer__info strong{color:var(--rl-muted);font-weight:600}

/* ---------- Hero ---------- */
.rl-hero{
  background:#fff;
  border-bottom:1px solid var(--rl-line);
  padding:56px 0 68px;
}
.rl-hero__row{align-items:center}
.rl-hero__copy{padding-right:16px}
.rl-crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--rl-faint);margin-bottom:20px}
.rl-crumb a{color:var(--rl-faint)}
.rl-crumb a:hover{color:var(--rl-primary)}
.rl-crumb .is-current{color:var(--rl-muted);font-weight:600}

.rl-hero h1{
  font-size:42px;line-height:1.28;letter-spacing:-.4px;margin-bottom:18px;
}
.rl-hero h1 em{font-style:normal;color:var(--rl-primary)}
.rl-hero__sub{font-size:17px;line-height:1.85;color:var(--rl-muted);max-width:600px;margin-bottom:26px}
.rl-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px}
.rl-hero__tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;color:var(--rl-faint);
}
.rl-hero__tags span{display:inline-flex;align-items:center;gap:12px}
.rl-hero__tags span::after{content:"";width:1px;height:12px;background:var(--rl-line-strong)}
.rl-hero__tags span:last-child::after{display:none}

.rl-hero__media{
  border-radius:var(--rl-radius);overflow:hidden;
  aspect-ratio:4/3;box-shadow:var(--rl-shadow);
  border:1px solid var(--rl-line);
}
.rl-hero__media img{width:100%;height:100%;object-fit:cover}

/* ---------- Main layout ---------- */
.rl-main{padding:64px 0 88px}
.rl-layout{
  display:grid;
  grid-template-columns:248px minmax(0,1fr);
  gap:48px;
  align-items:start;
}

.rl-anchor{
  position:sticky;top:100px;
  background:#fff;border:1px solid var(--rl-line);border-radius:var(--rl-radius);
  padding:20px 18px;box-shadow:var(--rl-shadow);
}
.rl-anchor__title{
  font-size:12px;font-weight:700;letter-spacing:1px;color:var(--rl-faint);
  text-transform:uppercase;margin-bottom:14px;
}
.rl-anchor a{
  display:block;padding:10px 12px;margin-bottom:4px;border-radius:9px;
  font-size:14px;color:var(--rl-muted);border-left:2px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.rl-anchor a:hover{background:var(--rl-soft);color:var(--rl-primary)}
.rl-anchor a.is-current{
  background:var(--rl-soft);color:var(--rl-primary);
  border-left-color:var(--rl-accent);font-weight:600;
}
.rl-anchor__tip{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--rl-line-strong);
  font-size:13px;color:var(--rl-faint);line-height:1.8;
}

/* ---------- Sections ---------- */
.rl-section{scroll-margin-top:104px}
.rl-section + .rl-section{margin-top:var(--rl-section-gap)}

.rl-section__head{max-width:760px;margin-bottom:34px}
.rl-section__head h2{font-size:30px;line-height:1.35;margin-bottom:14px}
.rl-section__head p{color:var(--rl-muted);font-size:15.5px;margin-bottom:0}
.rl-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:1.2px;color:var(--rl-accent);
  margin-bottom:12px;
}
.rl-eyebrow::before{content:"";width:22px;height:2px;background:var(--rl-accent);border-radius:2px}

/* ---------- Cards (two columns, staggered) ---------- */
.rl-col{display:flex;flex-direction:column;gap:var(--rl-gap)}
.rl-col.is-offset{margin-top:56px}

.rl-card{
  display:block;background:var(--rl-surface);
  border:1px solid var(--rl-line);border-radius:var(--rl-radius);
  overflow:hidden;box-shadow:var(--rl-shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rl-card:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover);border-color:#D3DEEC}
.rl-card__media{aspect-ratio:3/2;overflow:hidden;background:var(--rl-soft)}
.rl-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.rl-card:hover .rl-card__media img{transform:scale(1.05)}
.rl-card__body{padding:22px}
.rl-card__title{font-size:18px;font-weight:600;color:var(--rl-ink);margin-bottom:8px;line-height:1.45}
.rl-card:hover .rl-card__title{color:var(--rl-primary)}
.rl-card__desc{
  font-size:14px;line-height:1.75;color:var(--rl-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rl-card__more{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:14px;font-weight:600;color:var(--rl-primary);
}
.rl-card__more::after{content:"→";transition:transform .2s ease}
.rl-card:hover .rl-card__more::after{transform:translateX(3px)}

.rl-badge{
  display:inline-block;padding:3px 10px;border-radius:999px;
  background:var(--rl-soft);color:var(--rl-primary);
  font-size:12px;font-weight:600;line-height:1.7;margin-bottom:10px;letter-spacing:.3px;
}
.rl-badge--accent{background:#fff;border:1px solid rgba(232,106,44,.45);color:var(--rl-accent)}

/* ---------- Scene steps ---------- */
.rl-scene{
  display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:40px;align-items:start;
}
.rl-steps{display:flex;flex-direction:column;gap:16px}
.rl-step{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;
  background:#fff;border:1px solid var(--rl-line);border-radius:var(--rl-radius);
  padding:24px;transition:border-color .2s ease,box-shadow .2s ease;
}
.rl-step:hover{border-color:#D3DEEC;box-shadow:var(--rl-shadow)}
.rl-step__no{
  font-size:32px;font-weight:700;line-height:1;color:var(--rl-accent);
  font-family:Inter,"SFMono-Regular",system-ui,sans-serif;letter-spacing:-1px;
}
.rl-step__title{font-size:18px;font-weight:600;color:var(--rl-ink);margin-bottom:6px}
.rl-step__desc{font-size:14px;color:var(--rl-muted);line-height:1.8;margin:0}
.rl-scene__media{
  border-radius:var(--rl-radius);overflow:hidden;aspect-ratio:3/4;
  border:1px solid var(--rl-line);box-shadow:var(--rl-shadow);
}
.rl-scene__media img{width:100%;height:100%;object-fit:cover}

.rl-note{
  margin-top:18px;padding:16px 18px;background:var(--rl-soft);
  border-left:4px solid var(--rl-primary);border-radius:0 12px 12px 0;
  font-size:14px;color:var(--rl-primary-dark);line-height:1.8;
}

/* ---------- Stats ---------- */
.rl-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:#fff;border:1px solid var(--rl-line);border-radius:var(--rl-radius);
  overflow:hidden;box-shadow:var(--rl-shadow);
}
.rl-stat{padding:30px 24px;border-right:1px solid var(--rl-line)}
.rl-stat:last-child{border-right:0}
.rl-stat__num{
  font-size:36px;font-weight:700;line-height:1.1;color:var(--rl-primary);
  font-family:Inter,"SFMono-Regular",system-ui,sans-serif;letter-spacing:-1px;
}
.rl-stat__num small{font-size:16px;font-weight:600;margin-left:2px}
.rl-stat__label{font-size:13px;color:var(--rl-muted);margin-top:10px;line-height:1.7}

/* ---------- Notice list ---------- */
.rl-notice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.rl-notice{
  background:#fff;border:1px solid var(--rl-line);border-radius:var(--rl-radius);
  padding:24px;transition:transform .2s ease,box-shadow .2s ease;
}
.rl-notice:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover)}
.rl-notice__q{
  display:flex;align-items:flex-start;gap:10px;
  font-size:16px;font-weight:600;color:var(--rl-ink);margin-bottom:10px;line-height:1.6;
}
.rl-notice__q::before{
  content:"?";flex-shrink:0;width:22px;height:22px;border-radius:50%;
  background:var(--rl-soft);color:var(--rl-primary);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  margin-top:2px;
}
.rl-notice__a{
  font-size:14px;color:var(--rl-muted);line-height:1.85;margin:0;
  padding-left:32px;border-left:2px solid var(--rl-line);
}

/* ---------- CTA ---------- */
.rl-cta{
  background:var(--rl-soft);border:1px solid #DCE8F7;border-radius:20px;
  padding:48px;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:36px;align-items:center;
}
.rl-cta h2{font-size:28px;margin-bottom:12px}
.rl-cta p{color:var(--rl-muted);font-size:15.5px;margin-bottom:0;max-width:560px}
.rl-cta__actions{display:flex;flex-direction:column;gap:12px}
.rl-cta__actions .rl-btn{width:100%}

/* ---------- Footer ---------- */
.rl-footer{
  background:#101C2E;color:#C7D2E1;padding:64px 0 0;margin-top:0;
}
.rl-footer__grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.10);
}
.rl-footer .rl-logo__text{color:#fff}
.rl-footer .rl-logo__text em{color:#7FA8DA}
.rl-footer .rl-logo__sub{color:#8A97A8}
.rl-footer p{font-size:14px;line-height:1.9;color:#8A97A8;margin:0}
.rl-footer h4{
  font-size:14px;color:#fff;font-weight:600;letter-spacing:.5px;margin-bottom:16px;
}
.rl-footer__links{display:flex;flex-direction:column;gap:10px}
.rl-footer__links a{font-size:14px;color:#A9B7C9}
.rl-footer__links a:hover{color:var(--rl-accent)}
.rl-footer__contact li{font-size:14px;color:#8A97A8;line-height:1.9;margin-bottom:8px}
.rl-footer__contact strong{color:#C7D2E1;font-weight:600}
.rl-footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;font-size:13px;color:#7A8798;
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .rl-hero h1{font-size:36px}
}

@media (max-width:1023px){
  .rl-nav{display:none}
  .rl-burger{display:block}
  .rl-header__cta .rl-btn{display:none}
  .rl-header__inner{height:60px}
  .rl-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .rl-anchor{display:none}
  .rl-hero{padding:40px 0 52px}
  .rl-hero h1{font-size:32px}
  .rl-hero__copy{padding-right:0}
  .rl-hero__media{margin-top:32px;box-shadow:none}
  .rl-main{padding:48px 0 64px}
  .rl-scene{grid-template-columns:minmax(0,1fr);gap:28px}
  .rl-scene__media{aspect-ratio:16/9}
  .rl-cta{grid-template-columns:minmax(0,1fr);padding:36px;gap:24px}
  .rl-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}

@media (max-width:860px){
  .rl-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rl-stat:nth-child(2){border-right:0}
  .rl-stat:nth-child(1),
  .rl-stat:nth-child(2){border-bottom:1px solid var(--rl-line)}
  .rl-notice-grid{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:640px){
  body{font-size:15px;line-height:1.8}
  h2{font-size:22px}
  .grid-container{padding-left:18px;padding-right:18px}
  .rl-logo__text{font-size:18px}
  .rl-logo__sub{font-size:11px}
  .rl-hero h1{font-size:28px}
  .rl-hero__sub{font-size:15.5px}
  .rl-hero__actions{gap:10px}
  .rl-hero__actions .rl-btn{width:100%}
  .rl-hero__media{aspect-ratio:4/3;border-radius:12px}
  .rl-section__head h2{font-size:22px}
  .rl-section__head p{font-size:15px}
  .rl-section + .rl-section{margin-top:56px}
  .rl-col.is-offset{margin-top:0}
  .rl-col{gap:18px}
  .rl-card{border-radius:14px}
  .rl-card__body{padding:18px}
  .rl-step{grid-template-columns:48px minmax(0,1fr);gap:14px;padding:20px}
  .rl-step__no{font-size:26px}
  .rl-stats{grid-template-columns:minmax(0,1fr)}
  .rl-stat{border-right:0;border-bottom:1px solid var(--rl-line);padding:22px 20px}
  .rl-stat:last-child{border-bottom:0}
  .rl-stat__num{font-size:30px}
  .rl-notice{padding:20px}
  .rl-cta{padding:26px;border-radius:16px}
  .rl-cta h2{font-size:22px}
  .rl-footer{padding-top:48px}
  .rl-footer__grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:36px}
  .rl-footer__bottom{justify-content:flex-start;gap:8px}
}

/* roulang page: category3 */
:root{
  --rl-primary:#1F5AA6;
  --rl-primary-dark:#123C77;
  --rl-accent:#E86A2C;
  --rl-ink:#101C2E;
  --rl-muted:#5B6B82;
  --rl-soft:#8A97A8;
  --rl-bg:#F5F7FA;
  --rl-surface:#FFFFFF;
  --rl-line:#E2E8F0;
  --rl-line-strong:#D8E1EC;
  --rl-tint:#EEF4FC;
  --rl-radius:16px;
  --rl-radius-sm:10px;
  --rl-radius-xs:8px;
  --rl-shadow:0 1px 2px rgba(16,28,46,.04),0 8px 24px rgba(16,28,46,.06);
  --rl-shadow-hover:0 12px 32px rgba(16,28,46,.10);
  --rl-section:88px;
  --rl-max:1200px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--rl-ink);
  background:var(--rl-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--rl-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--rl-primary-dark);}
h1,h2,h3,h4,h5,h6{font-family:inherit;font-weight:700;color:var(--rl-ink);line-height:1.3;margin:0;letter-spacing:.01em;}
h3,h4{font-weight:600;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;cursor:pointer;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--rl-primary);
  outline-offset:2px;
  border-radius:6px;
}

/* ---------- container ---------- */
.grid-container{max-width:var(--rl-max);padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
.rl-gutter{gap:40px;}

/* ---------- header ---------- */
.rl-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--rl-line);
  transition:box-shadow .2s ease;
}
.rl-header.is-scrolled{box-shadow:0 6px 24px rgba(16,28,46,.08);}
.rl-header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.rl-logo{display:flex;flex-direction:column;line-height:1.2;}
.rl-logo__text{
  font-size:20px;
  font-weight:700;
  color:var(--rl-primary);
  letter-spacing:.01em;
}
.rl-logo__text em{font-style:normal;color:var(--rl-primary);}
.rl-logo__sub{font-size:12px;color:var(--rl-soft);margin-top:2px;}
.rl-nav{display:flex;align-items:center;gap:26px;}
.rl-nav > a{
  position:relative;
  font-size:15px;
  color:var(--rl-muted);
  padding:6px 0;
  white-space:nowrap;
}
.rl-nav > a:hover{color:var(--rl-primary);}
.rl-nav > a.is-active{color:var(--rl-primary);font-weight:600;}
.rl-nav > a.is-active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--rl-primary);
  border-radius:2px;
}
.rl-header__cta{display:flex;align-items:center;gap:12px;}
.rl-nav__extra{display:none;}
.rl-nav__contact{font-size:13px;color:var(--rl-soft);margin-top:14px;}

/* ---------- buttons ---------- */
.rl-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 28px;
  border-radius:var(--rl-radius-sm);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.rl-btn--primary{background:var(--rl-primary);color:#fff;}
.rl-btn--primary:hover{background:var(--rl-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(31,90,166,.22);}
.rl-btn--ghost{background:#fff;border-color:var(--rl-primary);color:var(--rl-primary);}
.rl-btn--ghost:hover{background:var(--rl-tint);color:var(--rl-primary-dark);}
.rl-btn--sm{height:42px;padding:0 20px;font-size:14px;}

/* ---------- burger ---------- */
.rl-burger{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--rl-line);
  background:#fff;
  border-radius:12px;
  position:relative;
  align-items:center;
  justify-content:center;
  transition:border-color .2s ease,background-color .2s ease;
}
.rl-burger:hover{border-color:var(--rl-primary);background:var(--rl-tint);}
.rl-burger span,
.rl-burger span::before,
.rl-burger span::after{
  content:"";
  display:block;
  width:18px;height:2px;
  background:var(--rl-primary);
  border-radius:2px;
  transition:transform .25s ease,opacity .2s ease;
}
.rl-burger span::before{transform:translateY(-6px);}
.rl-burger span::after{transform:translateY(4px);}
.rl-burger.is-active span{background:transparent;}
.rl-burger.is-active span::before{transform:translateY(0) rotate(45deg);}
.rl-burger.is-active span::after{transform:translateY(-2px) rotate(-45deg);}

.rl-scrim{
  position:fixed;
  inset:0;
  background:rgba(16,28,46,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:70;
}
.rl-scrim.is-open{opacity:1;visibility:visible;}

/* ---------- hero ---------- */
.rl-hero{padding:64px 0 56px;background:var(--rl-bg);}
.rl-crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--rl-soft);margin-bottom:20px;flex-wrap:wrap;}
.rl-crumbs a{color:var(--rl-muted);}
.rl-crumbs a:hover{color:var(--rl-primary);}
.rl-crumbs .rl-crumbs__sep{color:var(--rl-line-strong);}
.rl-hero__title{font-size:42px;line-height:1.25;margin-bottom:18px;}
.rl-hero__title em{font-style:normal;color:var(--rl-primary);}
.rl-hero__sub{font-size:17px;color:var(--rl-muted);max-width:560px;margin-bottom:28px;}
.rl-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.rl-hero__tags{display:flex;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--rl-soft);}
.rl-hero__tags span{padding:0 14px;border-right:1px solid var(--rl-line);}
.rl-hero__tags span:first-child{padding-left:0;}
.rl-hero__tags span:last-child{border-right:0;}
.rl-hero__media{
  border-radius:var(--rl-radius);
  overflow:hidden;
  aspect-ratio:4/3;
  box-shadow:var(--rl-shadow);
  background:var(--rl-tint);
}
.rl-hero__media img{width:100%;height:100%;object-fit:cover;}

/* ---------- section ---------- */
.rl-section{padding:var(--rl-section) 0;}
.rl-section--tint{background:#fff;}
.rl-section__head{max-width:760px;margin-bottom:40px;}
.rl-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--rl-accent);
  margin-bottom:12px;
}
.rl-eyebrow::before{content:"";width:24px;height:2px;background:var(--rl-accent);border-radius:2px;}
.rl-section__title{font-size:30px;margin-bottom:14px;}
.rl-section__desc{font-size:16px;color:var(--rl-muted);}

/* ---------- filter bar ---------- */
.rl-filterbar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding:18px 20px;
  background:#fff;
  border:1px solid var(--rl-line);
  border-radius:var(--rl-radius);
  box-shadow:var(--rl-shadow);
  margin-bottom:32px;
}
.rl-filterbar__label{font-size:13px;color:var(--rl-soft);margin-right:6px;}
.rl-chip{
  font-size:13px;
  padding:7px 16px;
  border-radius:999px;
  background:var(--rl-bg);
  border:1px solid var(--rl-line);
  color:var(--rl-muted);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.rl-chip:hover{border-color:var(--rl-primary);color:var(--rl-primary);}
.rl-chip.is-on{
  background:var(--rl-tint);
  border-color:var(--rl-primary);
  color:var(--rl-primary);
  font-weight:600;
}

/* ---------- asymmetric grid ---------- */
.rl-asym{
  display:grid;
  grid-template-columns:1.3fr 1fr;
  grid-template-rows:auto auto;
  gap:24px;
}
.rl-asym--flip{grid-template-columns:1fr 1.3fr;}
.rl-asym--flip .rl-card--big{grid-column:2;grid-row:1 / span 2;}
.rl-asym .rl-card--big{grid-row:1 / span 2;}

/* ---------- card ---------- */
.rl-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--rl-line);
  border-radius:var(--rl-radius);
  padding:24px;
  box-shadow:var(--rl-shadow);
  transition:transform .2s ease,box-shadow .2s ease;
}
.rl-card:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover);}
.rl-card__media{
  border-radius:12px;
  overflow:hidden;
  aspect-ratio:16/9;
  margin-bottom:18px;
  background:var(--rl-tint);
}
.rl-card--big .rl-card__media{aspect-ratio:3/2;}
.rl-card__media img{width:100%;height:100%;object-fit:cover;}
.rl-badge{
  display:inline-block;
  align-self:flex-start;
  font-size:12px;
  padding:4px 12px;
  border-radius:999px;
  background:var(--rl-tint);
  color:var(--rl-primary);
  font-weight:600;
  margin-bottom:14px;
}
.rl-badge--accent{background:#fff;border:1px solid var(--rl-accent);color:var(--rl-accent);}
.rl-card__title{font-size:20px;margin-bottom:10px;}
.rl-card--big .rl-card__title{font-size:24px;}
.rl-card__desc{font-size:15px;color:var(--rl-muted);margin-bottom:16px;}
.rl-card__list{margin:0 0 18px;padding:0;list-style:none;}
.rl-card__list li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  line-height:1.9;
  color:var(--rl-muted);
}
.rl-card__list li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:6px;height:6px;
  background:var(--rl-accent);
  border-radius:2px;
}
.rl-card__link{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--rl-primary);
}
.rl-card__link::after{content:"→";transition:transform .2s ease;}
.rl-card:hover .rl-card__link::after{transform:translateX(4px);}

/* ---------- steps ---------- */
.rl-steps{margin:0;padding:0;list-style:none;border-top:1px solid var(--rl-line);}
.rl-steps li{
  display:flex;
  gap:24px;
  padding:26px 0;
  border-bottom:1px solid var(--rl-line);
}
.rl-steps__num{
  font-size:30px;
  font-weight:700;
  line-height:1;
  color:var(--rl-accent);
  min-width:56px;
  font-variant-numeric:tabular-nums;
}
.rl-steps__title{font-size:19px;margin-bottom:6px;}
.rl-steps__text{font-size:15px;color:var(--rl-muted);margin:0;}

/* ---------- stats ---------- */
.rl-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:#fff;
  border:1px solid var(--rl-line);
  border-radius:var(--rl-radius);
  overflow:hidden;
  box-shadow:var(--rl-shadow);
}
.rl-stats__item{padding:28px 24px;border-right:1px solid var(--rl-line);}
.rl-stats__item:last-child{border-right:0;}
.rl-stats__num{font-size:36px;font-weight:700;color:var(--rl-primary);line-height:1.1;}
.rl-stats__label{font-size:13px;color:var(--rl-soft);margin-top:8px;}

/* ---------- faq ---------- */
.rl-faq .accordion{background:transparent;border:0;margin:0;padding:0;list-style:none;}
.rl-faq .accordion-item{
  background:#fff;
  border:1px solid var(--rl-line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:0 1px 2px rgba(16,28,46,.04);
}
.rl-faq .accordion-title{
  position:relative;
  display:block;
  border:0;
  padding:18px 56px 18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--rl-ink);
  line-height:1.6;
  background:#fff;
  transition:background-color .2s ease,color .2s ease;
}
.rl-faq .accordion-title:hover,
.rl-faq .accordion-title:focus{background:var(--rl-tint);color:var(--rl-primary);}
.rl-faq .accordion-title::before{
  content:"+";
  position:absolute;
  right:22px;top:50%;
  transform:translateY(-50%);
  font-size:20px;
  font-weight:400;
  color:var(--rl-primary);
  line-height:1;
  margin:0;
}
.rl-faq .accordion-item.is-active > .accordion-title::before{content:"–";}
.rl-faq .accordion-item.is-active > .accordion-title{background:var(--rl-bg);}
.rl-faq .accordion-content{
  border:0;
  padding:16px 22px 20px;
  background:#fff;
  color:var(--rl-muted);
  font-size:15px;
  line-height:1.8;
}
.rl-faq .accordion-content p{border-left:2px solid var(--rl-line);padding-left:14px;margin:0;}

/* ---------- cta ---------- */
.rl-cta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  background:var(--rl-tint);
  border-radius:20px;
  padding:44px 48px;
}
.rl-cta__title{font-size:26px;margin-bottom:10px;}
.rl-cta__text{font-size:15px;color:var(--rl-muted);margin:0;max-width:560px;}
.rl-cta__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.rl-footer{background:#101C2E;color:#fff;padding:64px 0 0;margin-top:0;}
.rl-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;}
.rl-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.rl-footer p,
.rl-footer a,
.rl-footer li{color:#8A97A8;font-size:14px;line-height:1.85;}
.rl-footer a{display:inline-block;}
.rl-footer a:hover{color:var(--rl-accent);}
.rl-footer .rl-logo__text{color:#fff;}
.rl-footer .rl-logo__text em{color:var(--rl-accent);}
.rl-footer .rl-logo__sub{color:#8A97A8;}
.rl-footer__links{display:flex;flex-direction:column;gap:10px;}
.rl-footer__contact{margin:0;padding:0;list-style:none;}
.rl-footer__contact li{margin-bottom:8px;}
.rl-footer__contact strong{color:#fff;font-weight:600;}
.rl-footer__bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:48px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;
  color:#8A97A8;
}

/* ---------- responsive ---------- */
@media screen and (max-width:1023px){
  .rl-nav{
    position:fixed;
    top:0;right:0;
    width:82vw;
    max-width:360px;
    height:100vh;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:88px 24px 32px;
    transform:translateX(105%);
    transition:transform .28s ease;
    box-shadow:-12px 0 40px rgba(16,28,46,.12);
    overflow-y:auto;
    z-index:75;
  }
  .rl-nav.is-open{transform:translateX(0);}
  .rl-nav > a{
    display:flex;
    align-items:center;
    height:52px;
    font-size:16px;
    color:var(--rl-ink);
    border-bottom:1px solid var(--rl-line);
    padding:0;
  }
  .rl-nav > a.is-active{color:var(--rl-primary);font-weight:600;}
  .rl-nav > a.is-active::after{display:none;}
  .rl-nav__extra{display:block;margin-top:26px;}
  .rl-nav__extra .rl-btn{width:100%;}
  .rl-burger{display:inline-flex;}
  .rl-header__inner{height:64px;}
  .rl-asym,
  .rl-asym--flip{grid-template-columns:1fr;grid-template-rows:auto;}
  .rl-asym .rl-card--big,
  .rl-asym--flip .rl-card--big{grid-column:auto;grid-row:auto;}
  .rl-hero__title{font-size:32px;}
  .rl-section{--rl-section:64px;}
  .rl-footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media screen and (max-width:767px){
  .rl-hero{padding:44px 0 40px;}
  .rl-hero__title{font-size:28px;}
  .rl-hero__sub{font-size:16px;}
  .rl-section{--rl-section:56px;}
  .rl-section__title{font-size:22px;}
  .rl-card--big .rl-card__title{font-size:20px;}
  .rl-cta{padding:32px 24px;border-radius:16px;}
  .rl-cta__title{font-size:22px;}
  .rl-stats{grid-template-columns:1fr 1fr;}
  .rl-stats__item{border-right:1px solid var(--rl-line);border-bottom:1px solid var(--rl-line);}
  .rl-stats__item:nth-child(2n){border-right:0;}
  .rl-stats__item:nth-last-child(-n+2){border-bottom:0;}
  .rl-footer__grid{grid-template-columns:1fr;gap:28px;}
  .rl-footer__bottom{flex-direction:column;align-items:flex-start;}
}

@media screen and (max-width:639px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .rl-header__cta .rl-btn{display:none;}
  .rl-logo__text{font-size:17px;}
  .rl-logo__sub{display:none;}
  .rl-stats{grid-template-columns:1fr;}
  .rl-stats__item{border-right:0;}
  .rl-steps li{gap:16px;}
  .rl-steps__num{font-size:24px;min-width:42px;}
  .rl-filterbar{padding:14px 16px;border-radius:14px;}
  .rl-card{padding:20px;}
}

/* roulang page: category4 */
:root{
  --rl-primary:#1F5AA6;
  --rl-primary-dark:#123C77;
  --rl-accent:#E86A2C;
  --rl-ink:#101C2E;
  --rl-text-2:#5B6B82;
  --rl-text-3:#8A97A8;
  --rl-bg:#F5F7FA;
  --rl-surface:#FFFFFF;
  --rl-tint:#EEF4FC;
  --rl-border:#E2E8F0;
  --rl-footer-bg:#101C2E;
  --rl-r-lg:16px;
  --rl-r-md:12px;
  --rl-r-sm:10px;
  --rl-shadow:0 1px 2px rgba(16,28,46,.04),0 8px 24px rgba(16,28,46,.06);
  --rl-shadow-hover:0 12px 32px rgba(16,28,46,.10);
  --rl-max:1200px;
  --rl-ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--rl-ink);
  background:var(--rl-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--rl-primary);text-decoration:none;transition:color var(--rl-ease),background-color var(--rl-ease),border-color var(--rl-ease)}
a:hover{color:var(--rl-primary-dark)}
h1,h2,h3,h4{margin:0;color:var(--rl-ink);font-weight:700;line-height:1.3}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:100%;margin:0}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--rl-primary);outline-offset:2px}
.grid-container{max-width:var(--rl-max);margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}

/* ---------- 顶部导航 ---------- */
.rl-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--rl-border);transition:box-shadow var(--rl-ease)}
.rl-header.is-scrolled{box-shadow:0 6px 20px rgba(16,28,46,.08)}
.rl-header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.rl-logo{display:flex;flex-direction:column;justify-content:center;gap:2px;flex:0 0 auto}
.rl-logo__text{font-size:20px;font-weight:700;color:var(--rl-primary);line-height:1.2;letter-spacing:.2px}
.rl-logo__text em{font-style:normal;color:var(--rl-primary-dark)}
.rl-logo__sub{font-size:12px;color:var(--rl-text-3);line-height:1.2}
.rl-nav{display:flex;align-items:center;gap:4px}
.rl-nav a{position:relative;display:inline-block;padding:9px 12px;font-size:15px;font-weight:500;color:var(--rl-text-2);border-radius:8px}
.rl-nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--rl-primary);transform:scaleX(0);transform-origin:left;transition:transform var(--rl-ease)}
.rl-nav a:hover{color:var(--rl-primary);background:var(--rl-tint)}
.rl-nav a:hover::after{transform:scaleX(1)}
.rl-nav a.is-active{color:var(--rl-primary);font-weight:600}
.rl-nav a.is-active::after{transform:scaleX(1)}
.rl-header__cta{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.rl-burger{display:none;position:relative;width:44px;height:44px;border:1px solid var(--rl-border);border-radius:10px;background:#fff;transition:background-color var(--rl-ease),border-color var(--rl-ease)}
.rl-burger:hover{background:var(--rl-tint);border-color:#C9DAEE}
.rl-burger span,.rl-burger span::before,.rl-burger span::after{position:absolute;left:50%;width:18px;height:2px;background:var(--rl-primary);border-radius:2px}
.rl-burger span{top:21px;transform:translateX(-50%)}
.rl-burger span::before{content:"";top:-6px;left:0}
.rl-burger span::after{content:"";top:6px;left:0}

/* ---------- 按钮 ---------- */
.rl-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--rl-r-sm);font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;transition:all var(--rl-ease)}
.rl-btn--primary{background:var(--rl-primary);color:#fff}
.rl-btn--primary:hover{background:var(--rl-primary-dark);color:#fff;transform:translateY(-1px)}
.rl-btn--ghost{background:#fff;color:var(--rl-primary);border-color:var(--rl-primary)}
.rl-btn--ghost:hover{background:var(--rl-tint);color:var(--rl-primary-dark)}
.rl-btn--sm{height:40px;padding:0 20px;font-size:14px}

/* ---------- 首屏 ---------- */
.rl-hero{position:relative;background:#fff;border-bottom:1px solid var(--rl-border);padding:76px 0 64px;text-align:center}
.rl-hero::after{content:"";position:absolute;left:50%;bottom:-1px;width:72px;height:2px;background:var(--rl-accent);transform:translateX(-50%)}
.rl-badge{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:999px;background:var(--rl-tint);color:var(--rl-primary);font-size:13px;font-weight:600}
.rl-badge i{font-size:12px}
.rl-hero h1{font-size:42px;line-height:1.3;letter-spacing:.4px;margin:22px auto 16px;max-width:860px}
.rl-lead{max-width:700px;margin:0 auto 30px;font-size:17px;color:var(--rl-text-2)}
.rl-search{display:flex;align-items:center;gap:10px;max-width:620px;margin:0 auto;background:#fff;border:1px solid var(--rl-border);border-radius:999px;padding:8px 8px 8px 22px;box-shadow:var(--rl-shadow);transition:border-color var(--rl-ease),box-shadow var(--rl-ease)}
.rl-search:focus-within{border-color:var(--rl-primary);box-shadow:0 0 0 4px rgba(31,90,166,.10)}
.rl-search i{color:var(--rl-text-3);font-size:15px}
.rl-search input{flex:1;min-width:0;height:46px;border:0;outline:none;background:transparent;font-size:15px;color:var(--rl-ink)}
.rl-search input::placeholder{color:var(--rl-text-3)}
.rl-search button{flex:0 0 auto;height:46px;padding:0 26px;border:0;border-radius:999px;background:var(--rl-primary);color:#fff;font-size:15px;font-weight:600;transition:background-color var(--rl-ease),transform var(--rl-ease)}
.rl-search button:hover{background:var(--rl-primary-dark);transform:translateY(-1px)}
.rl-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:22px}
.rl-tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;background:var(--rl-tint);color:var(--rl-primary);font-size:13px;font-weight:500;border:1px solid transparent}
.rl-tag--accent{background:#fff;border-color:rgba(232,106,44,.45);color:var(--rl-accent)}
.rl-hero__note{margin-top:22px;font-size:13px;color:var(--rl-text-3)}

/* ---------- 板块通用 ---------- */
.rl-section{padding:88px 0}
.rl-section--white{background:#fff}
.rl-section--tint{background:var(--rl-tint)}
.rl-section__head{max-width:760px;margin:0 auto 48px;text-align:center}
.rl-section__head h2{font-size:30px;margin-bottom:14px}
.rl-section__head p{color:var(--rl-text-2);font-size:16px}
.rl-section__head--left{text-align:left;margin-left:0}

/* ---------- 图文自查 ---------- */
.rl-split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.rl-media{border-radius:var(--rl-r-lg);overflow:hidden;aspect-ratio:3/2;box-shadow:var(--rl-shadow);background:#DDE6F1}
.rl-media img{width:100%;height:100%;object-fit:cover}
.rl-split h2{font-size:30px;margin-bottom:16px}
.rl-split .rl-split__text{color:var(--rl-text-2);font-size:16px;margin-bottom:28px}
.rl-checklist li{position:relative;padding-left:48px;margin-bottom:22px}
.rl-checklist li:last-child{margin-bottom:0}
.rl-checklist__num{position:absolute;left:0;top:0;font-size:18px;font-weight:700;color:var(--rl-accent);letter-spacing:.5px}
.rl-checklist h3{font-size:18px;font-weight:600;margin-bottom:6px}
.rl-checklist p{font-size:15px;color:var(--rl-text-2);margin:0}
.rl-textlink{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--rl-primary);margin-top:28px}
.rl-textlink i{font-size:12px;transition:transform var(--rl-ease)}
.rl-textlink:hover i{transform:translateX(4px)}
.rl-textlink span{border-bottom:2px solid transparent;transition:border-color var(--rl-ease)}
.rl-textlink:hover span{border-bottom-color:var(--rl-accent)}

/* ---------- 提示语对照 ---------- */
.rl-table{max-width:960px;margin:0 auto;background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-r-lg);overflow:hidden;box-shadow:var(--rl-shadow)}
.rl-table__row{display:grid;grid-template-columns:1fr 1.7fr;gap:24px;align-items:start;padding:22px 28px;border-bottom:1px solid var(--rl-border);transition:background-color var(--rl-ease)}
.rl-table__row:last-child{border-bottom:0}
.rl-table__row:hover{background:#F5F7FA}
.rl-table__key{font-size:15px;font-weight:600;color:var(--rl-ink)}
.rl-table__key i{color:var(--rl-accent);margin-right:8px;font-size:12px}
.rl-table__val{font-size:15px;color:var(--rl-text-2);margin:0}

/* ---------- FAQ ---------- */
.rl-faq{max-width:900px;margin:0 auto}
.rl-faq .accordion{background:transparent;border:0;margin:0}
.rl-faq .accordion-item{background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-r-lg);margin-bottom:12px;overflow:hidden;box-shadow:0 1px 2px rgba(16,28,46,.03);transition:box-shadow var(--rl-ease),border-color var(--rl-ease)}
.rl-faq .accordion-item:first-child{border-top:1px solid var(--rl-border)}
.rl-faq .accordion-item:hover{box-shadow:0 8px 24px rgba(16,28,46,.07);border-color:#D3DEEB}
.rl-faq .accordion-item.is-active{border-color:#C4D8EF}
.rl-faq .accordion-title{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:60px;padding:16px 24px;background:transparent;border:0;font-size:16px;font-weight:600;color:var(--rl-ink);line-height:1.6;transition:background-color var(--rl-ease),color var(--rl-ease)}
.rl-faq .accordion-title::before{content:none}
.rl-faq .accordion-title:hover{background:#F5F7FA;color:var(--rl-primary)}
.rl-faq .accordion-item.is-active .accordion-title{background:var(--rl-tint);color:var(--rl-primary)}
.rl-faq__icon{position:relative;flex:0 0 auto;width:18px;height:18px}
.rl-faq__icon::before,.rl-faq__icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--rl-primary);border-radius:2px;transition:transform var(--rl-ease),opacity var(--rl-ease)}
.rl-faq__icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.rl-faq__icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.rl-faq .accordion-item.is-active .rl-faq__icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.rl-faq .accordion-content{padding:0 24px 22px;border:0;background:#fff;color:var(--rl-text-2)}
.rl-faq .accordion-content p{font-size:15px;line-height:1.8;color:var(--rl-text-2);padding-left:14px;border-left:2px solid #D8E4F2;margin:0}

/* ---------- 分类入口卡 ---------- */
.rl-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rl-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-r-lg);overflow:hidden;box-shadow:var(--rl-shadow);transition:transform var(--rl-ease),box-shadow var(--rl-ease),border-color var(--rl-ease)}
.rl-card:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover);border-color:#D3DEEB}
.rl-card__media{aspect-ratio:3/2;overflow:hidden;background:#DDE6F1}
.rl-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease}
.rl-card:hover .rl-card__media img{transform:scale(1.04)}
.rl-card__body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rl-card__badge{align-self:flex-start;display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--rl-tint);color:var(--rl-primary);font-size:12px;font-weight:600}
.rl-card h3{font-size:19px}
.rl-card p{font-size:14px;color:var(--rl-text-2);margin:0}
.rl-card__link{margin-top:auto;padding-top:8px;font-size:14px;font-weight:600;color:var(--rl-primary);display:inline-flex;align-items:center;gap:8px}
.rl-card:hover .rl-card__link{color:var(--rl-primary-dark)}
.rl-card__link i{font-size:12px;transition:transform var(--rl-ease)}
.rl-card:hover .rl-card__link i{transform:translateX(4px)}

/* ---------- 描边 CTA ---------- */
.rl-cta{border:2px solid var(--rl-primary);border-radius:var(--rl-r-lg);background:#fff;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:36px}
.rl-cta h2{font-size:24px;margin-bottom:10px}
.rl-cta p{font-size:15px;color:var(--rl-text-2);margin:0;max-width:640px}
.rl-cta__actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.rl-footer{background:var(--rl-footer-bg);color:#fff;padding:64px 0 0;margin-top:0}
.rl-footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.10)}
.rl-footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.rl-footer p{color:#8A97A8;font-size:14px;line-height:1.9}
.rl-footer .rl-logo__text{color:#fff}
.rl-footer .rl-logo__text em{color:var(--rl-accent)}
.rl-footer .rl-logo__sub{color:#8A97A8}
.rl-footer__links{display:flex;flex-direction:column;gap:10px}
.rl-footer__links a{color:#C8D3E0;font-size:14px}
.rl-footer__links a:hover{color:var(--rl-accent)}
.rl-footer__contact{display:flex;flex-direction:column;gap:10px}
.rl-footer__contact li{color:#8A97A8;font-size:14px;line-height:1.8}
.rl-footer__contact strong{color:#C8D3E0;font-weight:500}
.rl-footer__bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:22px 0 26px;color:#8A97A8;font-size:13px}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .rl-header__inner{height:60px;gap:12px}
  .rl-logo__text{font-size:17px}
  .rl-logo__sub{display:none}
  .rl-burger{display:block}
  .rl-nav{position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;display:block;margin:0;padding:78px 20px 24px;background:#fff;box-shadow:-10px 0 30px rgba(16,28,46,.12);transform:translateX(105%);transition:transform 240ms ease;overflow-y:auto;z-index:70}
  .rl-nav.is-open{transform:translateX(0)}
  .rl-nav a{display:block;height:52px;line-height:52px;padding:0 12px;font-size:16px;border-bottom:1px solid var(--rl-border);border-radius:0}
  .rl-nav a::after{display:none}
  .rl-nav a.is-active{background:var(--rl-tint);border-radius:8px;border-bottom-color:transparent}
  .rl-header__cta .rl-btn{height:38px;padding:0 14px;font-size:13px}
  .rl-section{padding:60px 0}
  .rl-split{grid-template-columns:1fr;gap:32px}
  .rl-split__media{order:-1}
  .rl-split h2{font-size:24px}
  .rl-cards{grid-template-columns:repeat(2,1fr)}
  .rl-footer__grid{grid-template-columns:1fr 1fr;gap:32px;padding-bottom:36px}
}
@media (max-width:640px){
  .grid-container{padding-left:18px;padding-right:18px}
  .rl-hero{padding:52px 0 44px}
  .rl-hero h1{font-size:28px}
  .rl-lead{font-size:15px}
  .rl-section{padding:52px 0}
  .rl-section__head{margin-bottom:32px}
  .rl-section__head h2{font-size:22px}
  .rl-search{padding:6px 6px 6px 16px;border-radius:16px}
  .rl-search input{height:42px;font-size:14px}
  .rl-search button{height:42px;padding:0 18px;font-size:14px;border-radius:12px}
  .rl-split h2{font-size:22px}
  .rl-table__row{grid-template-columns:1fr;gap:6px;padding:18px}
  .rl-faq .accordion-title{padding:14px 16px;font-size:15px}
  .rl-faq .accordion-content{padding:0 16px 18px}
  .rl-cards{grid-template-columns:1fr}
  .rl-cta{flex-direction:column;align-items:flex-start;padding:26px 20px}
  .rl-cta h2{font-size:20px}
  .rl-footer__grid{grid-template-columns:1fr;gap:28px}
  .rl-footer{padding:48px 0 0}
  .rl-footer__bottom{flex-direction:column;gap:8px}
  .rl-header__cta .rl-btn{padding:0 12px;font-size:12px}
}
@media (max-width:380px){
  .rl-header__cta .rl-btn{display:none}
}