/* roulang page: index */
:root{
  --c-primary:#2359D6;
  --c-primary-dark:#1A45AC;
  --c-primary-soft:#EAF1FF;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFF1E8;
  --c-teal:#12B39A;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E4EAF5;
  --c-text:#141C2B;
  --c-text-2:#4C586B;
  --c-text-3:#8B96A8;
  --c-dark:#0E1726;
  --r-xs:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(16,32,64,.04),0 8px 24px -14px rgba(16,32,64,.16);
  --sh-hover:0 14px 34px -14px rgba(16,32,64,.24);
  --sh-nav:0 2px 8px rgba(16,32,64,.05),0 18px 40px -28px rgba(16,32,64,.35);
  --sp-section:96px;
  --font-stack:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-stack);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-locked{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-dark)}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
section{padding:var(--sp-section) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-title{position:relative;padding-left:16px;font-size:30px;line-height:1.3;letter-spacing:-.01em}
.section-title::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:var(--c-primary)}
.section-sub{margin-top:10px;font-size:15px;color:var(--c-text-3);padding-left:16px}
.section-title,.section-sub{padding-left:16px}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,89,214,.28);border-radius:var(--r-xs)}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:120;padding:0 16px;pointer-events:none}
.nav-capsule{
  pointer-events:auto;
  max-width:1200px;margin:0 auto;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 20px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid rgba(228,234,245,.9);
  box-shadow:var(--sh-nav);
  transition:height .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-capsule{height:56px;background:rgba(255,255,255,.96);box-shadow:0 10px 32px -16px rgba(16,32,64,.4)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;letter-spacing:-.5px}
.brand-text{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:-.01em;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--c-primary)}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-menu a{
  position:relative;padding:10px 15px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--c-text-2);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-menu a::after{content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;border-radius:2px;background:var(--c-primary);transform:translateX(-50%);transition:width .2s ease}
.nav-menu a:hover{color:var(--c-primary);background:rgba(234,241,255,.7)}
.nav-menu a:hover::after{width:18px}
.nav-menu a.is-active{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-menu a.is-active::after{width:18px}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px -10px rgba(35,89,214,.8)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(35,89,214,.75)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.btn-outline:active{transform:scale(.98)}
.btn-ghost{background:transparent;color:var(--c-primary);padding:0;height:auto;font-weight:600}
.btn-ghost .arrow{transition:transform .2s ease}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{background:#C7D3E8;color:#fff;border-color:#C7D3E8;cursor:not-allowed;box-shadow:none;transform:none}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-pill)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--c-line);background:#fff;padding:0;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);position:relative;transition:background .2s ease}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--c-text);transition:transform .2s ease}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{
  display:none;position:fixed;inset:0;z-index:119;background:#fff;padding:96px 24px 32px;
  overflow-y:auto;
}
.mobile-panel.is-open{display:flex;flex-direction:column}
.mobile-panel a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;padding:0 4px;border-bottom:1px solid var(--c-line);
  font-size:16px;font-weight:500;color:var(--c-text);
}
.mobile-panel a.m-link.is-active{color:var(--c-primary)}
.mobile-panel .m-cta{margin-top:auto;padding-top:24px}
.mobile-panel .m-cta .btn{width:100%}

/* ============ Hero ============ */
.hero{padding:128px 0 72px;position:relative;background:var(--c-bg);overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:720px;height:720px;border-radius:50%;
  background:radial-gradient(circle,rgba(35,89,214,.16),rgba(35,89,214,0) 68%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center}
.hero-copy{grid-column:span 6}
.hero-visual{grid-column:span 6;position:relative}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:14px;font-weight:600;
}
.hero h1{margin:18px 0 0;font-size:46px;line-height:1.25;letter-spacing:-.01em;font-weight:700}
.hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-lead{margin-top:18px;font-size:18px;line-height:1.8;color:var(--c-text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:24px;margin-top:32px;padding-top:24px;border-top:1px solid var(--c-line)}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);font-weight:500}
.trust-item svg{flex-shrink:0;color:var(--c-teal)}
.hero-figure{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-card);aspect-ratio:16/9;background:#dfe7f5}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,23,38,0) 40%,rgba(14,23,38,.35) 100%)}
.float-card{
  position:absolute;left:-28px;bottom:-28px;width:280px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-hover);padding:20px;
}
.float-card .fc-title{font-size:13px;color:var(--c-text-3);font-weight:500}
.float-card ul{margin-top:12px;display:grid;gap:10px}
.float-card li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:10px;border-bottom:1px dashed var(--c-line)}
.float-card li:last-child{border-bottom:0;padding-bottom:0}
.fc-num{font-size:20px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums}
.fc-label{font-size:14px;color:var(--c-text-2)}

/* ============ 倒计时条 ============ */
.countdown-band{padding:0 0 var(--sp-section)}
.countdown-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:var(--c-primary-soft);border:1px solid #D8E3FB;border-radius:var(--r-lg);
  padding:20px 28px;
}
.cd-label{font-size:16px;font-weight:600;color:var(--c-text)}
.cd-label span{display:block;font-size:13px;font-weight:500;color:var(--c-text-3);margin-top:2px}
.cd-nums{display:flex;gap:12px;flex-wrap:wrap}
.cd-cell{min-width:76px;background:#fff;border-radius:var(--r-xs);padding:8px 10px;text-align:center;box-shadow:0 1px 2px rgba(16,32,64,.05)}
.cd-num{display:block;font-size:30px;font-weight:700;color:var(--c-accent);line-height:1.2;font-variant-numeric:tabular-nums}
.cd-unit{display:block;font-size:12px;color:var(--c-text-3);margin-top:2px}

/* ============ 卖点区 ============ */
.sell-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:start}
.sell-intro{grid-column:span 5}
.sell-intro p{margin-top:16px;font-size:16px;color:var(--c-text-2);max-width:420px}
.sell-intro .btn-ghost{margin-top:20px}
.sell-list{grid-column:span 7;display:grid;grid-template-columns:repeat(2,1fr);gap:0 32px}
.sell-item{padding:24px 0;border-bottom:1px solid var(--c-line)}
.sell-item:nth-child(1),.sell-item:nth-child(2){padding-top:0}
.sell-icon{width:44px;height:44px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);display:flex;align-items:center;justify-content:center}
.sell-item h3{margin-top:14px;font-size:19px;font-weight:600;line-height:1.45}
.sell-item p{margin-top:8px;font-size:15px;line-height:1.8;color:var(--c-text-2)}

/* ============ 图墙 ============ */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:170px;gap:16px}
.g-item{position:relative;border-radius:var(--r-lg);overflow:hidden;background:#dfe7f5}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.g-item::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,23,38,.05),rgba(14,23,38,.35));transition:background .3s ease}
.g-item:hover img{transform:scale(1.03)}
.g-item:hover::after{background:linear-gradient(180deg,rgba(14,23,38,.1),rgba(14,23,38,.5))}
.g-1{grid-column:span 2;grid-row:span 2}
.g-2,.g-3{grid-column:span 2}
.g-badge{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.9);color:var(--c-primary);
  font-size:13px;font-weight:600;
}
.g-caption{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  color:#fff;font-size:14px;font-weight:500;text-shadow:0 1px 6px rgba(0,0,0,.35);
}
.g-stat{
  position:relative;z-index:2;border-radius:var(--r-lg);background:var(--c-surface);
  border:1px solid var(--c-line);box-shadow:var(--sh-card);padding:20px;
  display:flex;flex-direction:column;justify-content:center;gap:6px;
}
.g-stat strong{font-size:28px;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.g-stat span{font-size:14px;color:var(--c-text-2)}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.news-feature{grid-column:span 7}
.news-side{grid-column:span 5;display:flex;flex-direction:column;gap:0}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-card);transition:box-shadow .2s ease,transform .2s ease;
  overflow:hidden;display:block;color:inherit;
}
.card:hover{box-shadow:var(--sh-hover);transform:translateY(-2px);color:inherit}
.feature-media{aspect-ratio:4/3;overflow:hidden;background:#dfe7f5}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .feature-media img{transform:scale(1.03)}
.feature-body{padding:24px 26px 26px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;
}
.card h3{margin-top:14px;font-size:19px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;margin-top:18px;font-size:13px;color:var(--c-text-3)}
.card-meta .go{color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.card-meta .go svg{transition:transform .2s ease}
.card:hover .card-meta .go svg{transform:translateX(4px)}
.news-item{
  display:flex;gap:16px;align-items:flex-start;justify-content:space-between;
  padding:18px 4px;border-bottom:1px solid var(--c-line);color:inherit;
}
.news-item:first-child{padding-top:0}
.news-item:last-child{border-bottom:0}
.news-item h3{margin-top:8px;font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item .ni-time{font-size:13px;color:var(--c-text-3);white-space:nowrap;padding-top:6px;font-variant-numeric:tabular-nums}
.news-item:hover{color:var(--c-primary)}
.news-item:hover h3{color:var(--c-primary)}
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--r-lg);background:var(--c-surface);
  padding:56px 24px;text-align:center;color:var(--c-text-3);
}
.empty-state svg{color:#B9C6DC;margin:0 auto 14px}
.empty-state p{font-size:15px}
.skeleton-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.skeleton{height:220px;border-radius:var(--r-lg);background:linear-gradient(90deg,#EEF2F9 25%,#F7F9FD 37%,#EEF2F9 63%);background-size:400% 100%;animation:shimmer 1.4s ease infinite}
@keyframes shimmer{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ============ CTA 表单 ============ */
.cta-block{
  background:var(--c-primary-soft);border:1px solid #D8E3FB;border-radius:var(--r-xl);
  padding:40px;display:grid;grid-template-columns:repeat(12,1fr);gap:32px;align-items:center;
}
.cta-copy{grid-column:span 6}
.cta-copy h2{font-size:28px;line-height:1.35}
.cta-copy p{margin-top:14px;font-size:16px;color:var(--c-text-2);max-width:460px}
.cta-points{margin-top:20px;display:grid;gap:10px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--c-text-2)}
.cta-points svg{flex-shrink:0;color:var(--c-teal)}
.cta-form{grid-column:span 6;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-card)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:500;color:var(--c-text);margin-bottom:8px}
.field input{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-md);
  border:1px solid var(--c-line);background:#fff;color:var(--c-text);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--c-text-3)}
.field input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(35,89,214,.18)}
.field.has-error input{border-color:#D6453D;box-shadow:0 0 0 3px rgba(214,69,61,.14)}
.field .err{display:none;margin-top:6px;font-size:14px;color:#D6453D}
.field.has-error .err{display:block}
.cta-form .btn{width:100%;margin-top:4px}
.form-note{margin-top:12px;font-size:13px;color:var(--c-text-3)}
.form-success{display:none;margin-top:14px;padding:10px 14px;border-radius:var(--r-xs);background:rgba(18,179,154,.1);color:#0E8E7C;font-size:14px}
.form-success.is-on{display:block}

/* ============ 数据条 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px 32px}
.metric{position:relative;padding-left:20px}
.metric:first-child{padding-left:0}
.metric:not(:first-child)::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:44px;background:var(--c-line)}
.metric strong{display:block;font-size:26px;font-weight:700;color:var(--c-text);font-variant-numeric:tabular-nums;line-height:1.3}
.metric span{display:block;margin-top:4px;font-size:14px;color:var(--c-text-3)}

/* ============ FAQ ============ */
.faq-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-card);overflow:hidden}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:14px 24px;background:transparent;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-text);
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s ease}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg)}
.faq-item.is-open .faq-icon::before{transform:rotate(180deg)}
.faq-a{display:none;padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--c-text-2)}
.faq-item.is-open .faq-a{display:block}

/* ============ 页脚 ============ */
.site-footer{background:#EFF3FA;border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-text{font-size:18px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--c-text-2);max-width:320px}
.footer-social{display:flex;gap:12px;margin-top:18px}
.footer-social a{width:38px;height:38px;border-radius:12px;background:#fff;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;color:var(--c-text-2)}
.footer-social a:hover{color:var(--c-primary);border-color:#C9D8F5}
.footer-col h4{font-size:15px;font-weight:700;color:var(--c-text)}
.footer-col ul{margin-top:16px;display:grid;gap:10px}
.footer-col a,.footer-col li{font-size:14px;color:var(--c-text-2)}
.footer-col a:hover{color:var(--c-primary)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;line-height:1.7}
.footer-contact svg{flex-shrink:0;margin-top:5px;color:var(--c-primary)}
.footer-bottom{margin-top:48px;border-top:1px solid var(--c-line);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--c-text-3)}
.footer-bottom a{color:var(--c-text-3)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ============ 滚动淡入 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sp-section:72px}
  .nav-menu,.nav-actions .btn-sm{display:none}
  .nav-toggle{display:flex}
  .hero h1{font-size:36px}
  .hero-copy,.hero-visual{grid-column:span 12}
  .hero-visual{margin-top:8px}
  .float-card{position:static;width:100%;margin-top:20px;left:auto;bottom:auto}
  .sell-intro,.sell-list{grid-column:span 12}
  .sell-list{margin-top:8px}
  .news-feature,.news-side{grid-column:span 12}
  .cta-copy,.cta-form{grid-column:span 12}
  .cta-block{padding:32px}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:180px}
  .g-1{grid-column:span 2;grid-row:span 2}
  .g-2,.g-3{grid-column:span 2}
  .metrics{grid-template-columns:repeat(2,1fr);gap:24px 20px;padding:24px}
  .metric:nth-child(3){padding-left:0}
  .metric:nth-child(3)::before{display:none}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  :root{--sp-section:56px}
  .container{padding:0 20px}
  body{font-size:15px}
  .hero{padding:112px 0 56px}
  .hero h1{font-size:29px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-trust{gap:14px 20px}
  .section-title{font-size:23px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .countdown-inner{padding:18px 20px}
  .cd-cell{min-width:62px;padding:6px 8px}
  .cd-num{font-size:23px}
  .countdown-inner .btn{width:100%}
  .sell-list{grid-template-columns:1fr;gap:0}
  .sell-item:nth-child(2){padding-top:24px}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px;gap:12px}
  .g-1{grid-column:span 2;grid-row:span 1}
  .g-2,.g-3{grid-column:span 2}
  .g-stat{grid-column:span 2}
  .feature-body{padding:20px}
  .cta-block{padding:24px}
  .cta-form{padding:22px}
  .metrics{grid-template-columns:1fr;gap:0;padding:8px 20px}
  .metric{padding:18px 0!important;border-bottom:1px solid var(--c-line)}
  .metric:last-child{border-bottom:0}
  .metric:not(:first-child)::before{display:none}
  .faq-q{min-height:56px;font-size:16px;padding:12px 18px}
  .faq-a{padding:0 18px 18px}
  .skeleton-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{justify-content:center;text-align:center}
}

/* roulang page: article */
:root{
  --c-primary:#2359D6;
  --c-primary-dark:#1A45AC;
  --c-primary-soft:#EAF1FF;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFF1E8;
  --c-teal:#12B39A;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E4EAF5;
  --c-text:#141C2B;
  --c-text-2:#4C586B;
  --c-text-3:#8B96A8;
  --c-dark:#0E1726;
  --r-xs:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,64,.04), 0 8px 24px -14px rgba(16,32,64,.16);
  --sh-2:0 14px 34px -14px rgba(16,32,64,.24);
  --ease:.2s ease;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),background var(--ease)}
a:hover{color:var(--c-primary-dark)}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--c-primary-soft);color:var(--c-primary-dark)}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:90;
  padding:0 16px;
  pointer-events:none;
}
.nav-capsule{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  height:64px;
  padding:0 20px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid rgba(228,234,245,.9);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  pointer-events:auto;
  transition:height .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-capsule{
  height:56px;
  background:rgba(255,255,255,.96);
  box-shadow:var(--sh-2);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
  color:var(--c-text);
  font-weight:700;
}
.brand:hover{color:var(--c-text)}
.brand-mark{
  width:32px;
  height:32px;
  flex:none;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:15px;
  font-weight:700;
  letter-spacing:0;
}
.brand-text{
  font-size:16px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-text em{font-style:normal;color:var(--c-primary)}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-menu a{
  position:relative;
  padding:10px 16px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:500;
  color:var(--c-text-2);
  transition:color var(--ease),background var(--ease);
}
.nav-menu a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:4px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:translateX(-50%);
  transition:width var(--ease);
}
.nav-menu a:hover{color:var(--c-primary);background:rgba(234,241,255,.72)}
.nav-menu a:hover::after{width:22px}
.nav-menu a.is-active{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-menu a:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,89,214,.28)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:var(--r-md);
  border:1px solid var(--c-line);
  background:#fff;
  cursor:pointer;
  place-items:center;
  transition:border-color var(--ease),background var(--ease);
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--c-text);
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle span{position:relative}
.nav-toggle span::before,
.nav-toggle span::after{content:"";position:absolute;left:0}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle:hover{border-color:#C9D6EE;background:var(--c-primary-soft)}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,89,214,.28)}
.nav-toggle[aria-expanded="true"] span{transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(-90deg)}
.nav-toggle[aria-expanded="true"] span::after{opacity:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border:1px solid transparent;
  border-radius:var(--r-md);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.btn-sm{height:40px;padding:0 20px;border-radius:var(--r-pill);font-size:14px}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,89,214,.28)}
.btn[disabled]{background:#C7D3E8;color:#fff;pointer-events:none}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary);
}
.link-arrow svg{transition:transform var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}
.link-arrow:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,89,214,.28);border-radius:6px}

/* ---------- 移动端面板 ---------- */
.mobile-panel{
  position:fixed;
  inset:0;
  z-index:120;
  display:none;
  flex-direction:column;
  padding:96px 24px 28px;
  background:#fff;
  overflow-y:auto;
}
.mobile-panel.is-open{display:flex}
.mobile-panel a{
  display:block;
  min-height:52px;
  line-height:52px;
  font-size:16px;
  font-weight:500;
  color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
.mobile-panel a:hover,.mobile-panel a.is-active{color:var(--c-primary)}
.mobile-panel .btn{
  margin-top:24px;
  width:100%;
  border-bottom:0;
  line-height:1;
  color:#fff;
}
.mobile-close{
  position:absolute;
  top:22px;
  right:24px;
  width:44px;
  height:44px;
  border-radius:var(--r-md);
  border:1px solid var(--c-line);
  background:#fff;
  font-size:20px;
  cursor:pointer;
}

/* ---------- 页面骨架 ---------- */
main{padding-top:112px;padding-bottom:16px}
.section{margin-top:96px}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
  flex-wrap:wrap;
}
.section-head h2{
  position:relative;
  font-size:30px;
  line-height:1.3;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.28em;
  width:4px;
  height:22px;
  border-radius:2px;
  background:var(--c-primary);
}
.section-head p{font-size:15px;color:var(--c-text-3);margin-top:8px;padding-left:16px}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:var(--c-text-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--c-text-3)}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:#C3CDDE}
.breadcrumb .current{color:var(--c-primary);font-weight:500}

/* ---------- 文章头 ---------- */
.article-head{
  max-width:860px;
  margin:0 auto;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:36px 40px 32px;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:13px;
  font-weight:600;
}
.badge-accent{background:var(--c-accent-soft);color:#C9541A}
.article-head h1{
  font-size:36px;
  line-height:1.32;
  margin:18px 0 16px;
  letter-spacing:-.01em;
}
.article-lead{
  font-size:16px;
  line-height:1.85;
  color:var(--c-text-2);
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
  padding-top:20px;
  border-top:1px solid var(--c-line);
  font-size:14px;
  color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}
.article-meta .dot{
  width:4px;
  height:4px;
  border-radius:50%;
  background:#CBD5E6;
}
.article-cover{
  max-width:860px;
  margin:24px auto 0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  box-shadow:var(--sh-1);
}
.article-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}

/* ---------- 正文阅读区 ---------- */
.article-body{
  max-width:780px;
  margin:40px auto 0;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:40px;
  font-size:16px;
  line-height:1.9;
  color:var(--c-text-2);
}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;
  font-size:26px;
  line-height:1.35;
  margin:40px 0 16px;
  padding-left:14px;
}
.article-body h2:first-child{margin-top:0}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.34em;
  width:4px;
  height:22px;
  border-radius:2px;
  background:var(--c-primary);
}
.article-body h3{
  font-size:19px;
  font-weight:600;
  margin:28px 0 12px;
  line-height:1.45;
}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body ul{padding-left:18px;margin:0 0 18px}
.article-body ul li{position:relative;margin-bottom:8px}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:-18px;
  top:.75em;
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--c-primary);
}
.article-body ol{list-style:decimal;padding-left:22px;margin:0 0 18px}
.article-body ol li{margin-bottom:8px}
.article-body blockquote{
  margin:22px 0;
  padding:16px 20px;
  border-left:3px solid var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--c-text-2);
}
.article-body img{
  margin:22px auto;
  border-radius:var(--r-md);
}
.article-body a{text-decoration:underline;text-underline-offset:3px}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:22px 0;
  font-size:15px;
}
.article-body th,
.article-body td{
  border:1px solid var(--c-line);
  padding:12px 14px;
  text-align:left;
  line-height:1.7;
}
.article-body th{background:var(--c-primary-soft);color:var(--c-text);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFBFE}
.article-body figure{margin:22px 0}
.article-body figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--c-text-3);
  text-align:center;
}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}

/* ---------- 无内容空态 ---------- */
.article-empty{
  max-width:780px;
  margin:40px auto 0;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:64px 32px;
  text-align:center;
}
.article-empty svg{color:#A9B7CE;margin:0 auto 18px}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{font-size:15px;color:var(--c-text-3);margin-bottom:22px}

/* ---------- 文内提示条 ---------- */
.inline-cta{
  max-width:780px;
  margin:28px auto 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 24px;
  background:var(--c-primary-soft);
  border:1px solid #D8E4FF;
  border-radius:var(--r-md);
}
.inline-cta strong{display:block;font-size:16px;color:var(--c-text);font-weight:600}
.inline-cta span{display:block;font-size:14px;color:var(--c-text-2);margin-top:4px}

/* ---------- 相关推荐 ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D3DEF2}
.card-media{
  aspect-ratio:16/10;
  overflow:hidden;
  background:#EEF2F9;
}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s ease;
}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.45;font-weight:600}
.card-body p{font-size:14px;line-height:1.75;color:var(--c-text-2)}
.card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
  padding-top:6px;
}
.card-foot svg{transition:transform var(--ease);color:var(--c-primary)}
.card:hover .card-foot svg{transform:translateX(4px)}
.card-link{position:absolute;inset:0}
.card{position:relative}

/* ---------- 返回栏目 ---------- */
.back-row{
  margin-top:32px;
  display:flex;
  justify-content:center;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:#EFF3FA;
  border-top:1px solid var(--c-line);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand p{
  margin:18px 0 20px;
  font-size:14px;
  line-height:1.85;
  color:var(--c-text-2);
  max-width:320px;
}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;
  height:38px;
  border-radius:var(--r-md);
  border:1px solid var(--c-line);
  background:#fff;
  display:grid;
  place-items:center;
  color:var(--c-primary);
  transition:background var(--ease),transform var(--ease),border-color var(--ease);
}
.footer-social a:hover{background:var(--c-primary-soft);transform:translateY(-1px);border-color:#D3DEF2}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--c-text)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--c-text-2)}
.footer-col ul a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:8px;
  font-size:14px;
  color:var(--c-text-2);
  line-height:1.7;
  margin-bottom:12px;
}
.footer-contact svg{flex:none;margin-top:4px;color:var(--c-primary)}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid var(--c-line);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  font-size:13px;
  color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-3)}
.footer-bottom a:hover{color:var(--c-primary)}
.footer-links{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- 滚动淡入 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-menu{display:none}
  .nav-actions .btn{display:none}
  .nav-toggle{display:grid}
  .article-head{padding:28px 26px 26px}
  .article-head h1{font-size:30px}
  .article-body{padding:30px 26px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
  .footer-brand p{max-width:none}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .site-header{top:12px;padding:0 12px}
  .nav-capsule{height:58px;padding:0 14px;gap:10px}
  .site-header.is-scrolled .nav-capsule{height:54px}
  .brand-text{font-size:15px}
  main{padding-top:96px}
  .section{margin-top:64px}
  .section-head h2{font-size:23px}
  .article-head{padding:24px 20px 22px;border-radius:var(--r-md)}
  .article-head h1{font-size:26px;line-height:1.35}
  .article-body{padding:24px 20px;border-radius:var(--r-md);font-size:15px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:17px}
  .inline-cta{flex-direction:column;align-items:stretch;text-align:left}
  .inline-cta .btn{width:100%}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:64px;padding-top:48px}
  .footer-bottom{justify-content:center;text-align:center}
}

/* roulang page: category1 */
:root{
  --c-primary:#2359D6;
  --c-primary-dark:#1A45AC;
  --c-primary-soft:#EAF1FF;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFF1E8;
  --c-teal:#12B39A;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E4EAF5;
  --c-text:#141C2B;
  --c-text-2:#4C586B;
  --c-text-3:#8B96A8;
  --c-dark:#0E1726;
  --r-xs:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(16,32,64,.04),0 8px 24px -14px rgba(16,32,64,.16);
  --shadow-2:0 14px 34px -14px rgba(16,32,64,.24);
  --container:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-dark)}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;line-height:1.3}
h1{font-size:44px;line-height:1.25;letter-spacing:-.01em}
h2{font-size:30px;line-height:1.3}
h3{font-size:19px;font-weight:600;line-height:1.45}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
em.hl{font-style:normal;color:var(--c-primary)}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{position:relative;padding-left:18px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:22px;border-radius:2px;background:var(--c-primary);
}
.section-head p{margin-top:12px;font-size:16px;color:var(--c-text-2)}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.section-head--center h2{padding-left:0}
.section-head--center h2::before{display:none}

/* 悬浮胶囊导航 */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:100;
  padding:0 16px;
  transition:top .25s ease;
}
.nav-capsule{
  max-width:var(--container);
  margin:0 auto;
  height:64px;
  display:flex;align-items:center;gap:16px;
  padding:0 20px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid rgba(228,234,245,.9);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow-1);
  transition:height .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-capsule{
  height:56px;
  background:rgba(255,255,255,.96);
  box-shadow:var(--shadow-2);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{font-size:16px;font-weight:700;color:var(--c-text);white-space:nowrap}
.brand-text em{font-style:normal;color:var(--c-primary)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{
  position:relative;
  padding:10px 16px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--c-text);
  transition:color .2s ease,background .2s ease;
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%) scaleX(0);
  width:20px;height:2px;border-radius:2px;background:var(--c-primary);
  transition:transform .2s ease;
}
.nav-menu a:hover{color:var(--c-primary)}
.nav-menu a:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-menu a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}
.nav-menu a.is-active::after{display:none}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle span{
  position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);
  transition:background .2s ease;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--c-text);
  transition:transform .2s ease,top .2s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle:hover{border-color:var(--c-primary);background:var(--c-primary-soft)}
.nav-toggle:focus-visible{outline:3px solid rgba(35,89,214,.28);outline-offset:2px}
.mobile-panel{
  display:none;
  position:fixed;top:88px;left:16px;right:16px;z-index:99;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-2);padding:10px;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:block;padding:14px 16px;border-radius:12px;
  font-size:15px;font-weight:500;color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
.mobile-panel a:last-child{border-bottom:0}
.mobile-panel a:hover,.mobile-panel a.is-active{background:var(--c-primary-soft);color:var(--c-primary)}
.mobile-panel .btn{margin-top:10px;border-bottom:0}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:scale(.98)}
.btn-primary:focus-visible{outline:3px solid rgba(35,89,214,.28);outline-offset:2px}
.btn-outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-outline:focus-visible{outline:3px solid rgba(35,89,214,.28);outline-offset:2px}
.btn-ghost{background:transparent;color:var(--c-primary);padding:0;height:auto}
.btn-ghost .arrow{display:inline-block;transition:transform .2s ease}
.btn-ghost:hover{color:var(--c-primary-dark)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-ghost:focus-visible{outline:3px solid rgba(35,89,214,.28);outline-offset:3px;border-radius:6px}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-pill)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:14px;font-weight:600;
}
.badge--accent{background:var(--c-accent-soft);color:#C4551A}
.badge--teal{background:rgba(18,179,154,.12);color:#0C8874}

/* 主视觉 */
main{padding-top:96px}
.page-hero{
  padding:32px 0 48px;
  background:
    radial-gradient(900px 420px at 82% -10%, rgba(35,89,214,.10), rgba(246,248,252,0) 70%),
    var(--c-bg);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);margin-bottom:20px}
.crumb a{color:var(--c-text-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb-current{color:var(--c-primary);font-weight:500}
.page-hero .badge{margin-bottom:16px}
.page-hero h1{max-width:920px;margin-bottom:16px}
.page-hero .lead{
  max-width:760px;font-size:17px;color:var(--c-text-2);margin-bottom:28px;
}
.hero-facts{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  margin-top:44px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);
  overflow:hidden;
}
.fact{padding:22px 26px;border-right:1px solid var(--c-line)}
.fact:last-child{border-right:0}
.fact strong{
  display:block;font-size:26px;font-weight:700;color:var(--c-text);
  font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:6px;
}
.fact span{font-size:14px;color:var(--c-text-3)}

/* 步骤 */
.steps{display:flex;flex-direction:column}
.step-item{position:relative;display:grid;grid-template-columns:56px 1fr;gap:22px;padding-bottom:38px}
.step-item:last-child{padding-bottom:0}
.step-item::before{
  content:"";position:absolute;left:27px;top:62px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--c-line),rgba(228,234,245,.15));
}
.step-item:last-child::before{display:none}
.step-num{
  width:56px;height:56px;border-radius:var(--r-lg);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;
  display:flex;align-items:center;justify-content:center;
}
.step-body h3{margin-bottom:10px}
.step-body p{margin:0;font-size:16px;color:var(--c-text-2)}
.step-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);
  box-shadow:var(--shadow-1);padding:40px;
}

/* 图文分栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--shadow-1);aspect-ratio:4/3;
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.split-media:hover img{transform:scale(1.03)}
.split-body h2{margin-bottom:16px}
.split-body p{font-size:16px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.check-list li{position:relative;padding-left:28px;font-size:15px;color:var(--c-text-2)}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:50%;
  background:rgba(18,179,154,.14);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:14px;width:6px;height:3px;
  border-left:2px solid var(--c-teal);border-bottom:2px solid var(--c-teal);
  transform:rotate(-45deg);
}

/* 提示排查 */
.tips-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.tip-item{padding:26px 0;border-bottom:1px solid var(--c-line)}
.tip-item h3{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.tip-icon{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.tip-item p{font-size:15px;margin:0;color:var(--c-text-2)}

/* FAQ */
.faq{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:64px;padding:0 24px;background:transparent;border:0;
  text-align:left;font-size:17px;font-weight:600;color:var(--c-text);cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.faq-q:hover{background:#FAFBFE;color:var(--c-primary)}
.faq-q:focus-visible{outline:3px solid rgba(35,89,214,.28);outline-offset:-3px}
.faq-icon{
  position:relative;width:18px;height:18px;flex:0 0 18px;
  transition:transform .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-text-2)}

/* CTA */
.cta-band{
  background:var(--c-primary-soft);
  border:1px solid rgba(35,89,214,.14);
  border-radius:var(--r-xl);
  padding:40px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
}
.cta-band h2{margin-bottom:12px}
.cta-band p{font-size:16px;margin-bottom:0}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn{width:100%}

/* 页脚 */
.site-footer{
  background:#EFF3FA;
  border-top:1px solid var(--c-line);
  padding:64px 0 0;
  margin-top:16px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--c-text-2);margin-bottom:18px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.footer-social a:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px)}
.footer-social a:focus-visible{outline:3px solid rgba(35,89,214,.28);outline-offset:2px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--c-text);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:var(--c-text-2)}
.footer-col a{color:var(--c-text-2);font-size:14px}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:flex;align-items:flex-start;gap:8px;line-height:1.7}
.footer-contact svg{flex:0 0 16px;margin-top:5px;color:var(--c-primary)}
.footer-bottom{
  margin-top:48px;padding:20px 0;
  border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-3)}
.footer-bottom a:hover{color:var(--c-primary)}

/* 滚动淡入 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-visible{opacity:1;transform:translateY(0)}

/* 响应式 */
@media (max-width:1023px){
  .nav-menu{display:none}
  .nav-toggle{display:flex}
  .nav-actions{margin-left:auto}
  .split{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .cta-actions{flex-direction:row}
  .cta-actions .btn{width:auto;flex:1}
  h1{font-size:34px}
  h2{font-size:24px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  main{padding-top:88px}
  .site-header{top:12px;padding:0 12px}
  .nav-capsule{height:58px;padding:0 14px;gap:10px}
  .site-header.is-scrolled .nav-capsule{height:52px}
  .brand-text{font-size:15px}
  .brand-mark{width:28px;height:28px;flex:0 0 28px;font-size:14px;border-radius:9px}
  .mobile-panel{top:80px;left:12px;right:12px}
  h1{font-size:28px}
  h2{font-size:22px}
  h3{font-size:17px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .page-hero{padding:20px 0 36px}
  .page-hero .lead{font-size:16px}
  .hero-facts{grid-template-columns:1fr;margin-top:32px}
  .fact{border-right:0;border-bottom:1px solid var(--c-line);padding:18px 22px}
  .fact:last-child{border-bottom:0}
  .step-card{padding:24px 20px}
  .step-item{grid-template-columns:46px 1fr;gap:16px;padding-bottom:30px}
  .step-num{width:46px;height:46px;font-size:17px;border-radius:12px}
  .step-item::before{left:22px;top:52px}
  .tips-grid{grid-template-columns:1fr;gap:0}
  .faq-q{height:56px;font-size:16px;padding:0 18px}
  .faq-a-inner{padding:0 18px 20px}
  .cta-band{padding:28px 22px;border-radius:var(--r-lg)}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{justify-content:center;text-align:center}
  .btn{height:46px}
  .btn-sm{height:38px}
}

/* roulang page: category2 */
:root{
  --c-primary:#2359D6;
  --c-primary-dark:#1A45AC;
  --c-primary-soft:#EAF1FF;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFF1E8;
  --c-teal:#12B39A;
  --c-teal-soft:#E7F8F5;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E4EAF5;
  --c-text:#141C2B;
  --c-text-2:#4C586B;
  --c-text-3:#8B96A8;
  --c-dark:#0E1726;
  --r-xs:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,32,64,.04),0 8px 24px -14px rgba(16,32,64,.16);
  --shadow-md:0 14px 34px -14px rgba(16,32,64,.24);
  --ease:.2s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,dl,dd{margin:0}
ul,ol{list-style:none;padding:0}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),transform var(--ease)}
a:hover{color:var(--c-primary-dark)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(35,89,214,.28);outline-offset:2px;border-radius:var(--r-xs)}
img{max-width:100%;display:block}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{color:var(--c-text);line-height:1.3;letter-spacing:-.01em}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1024px){.container{padding:0 40px}}

.section{padding:56px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1024px){.section{padding:96px 0}}
.section-tight{padding:40px 0}
@media(min-width:1024px){.section-tight{padding:56px 0}}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-title{position:relative;padding-left:16px;font-size:22px;font-weight:700}
.section-title::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:var(--c-primary)}
@media(min-width:1024px){.section-title{font-size:30px}.section-title::before{top:8px;height:28px}}
.section-sub{margin-top:10px;font-size:15px;color:var(--c-text-2);max-width:720px}

/* 导航 */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:130;padding:0 16px;display:flex;justify-content:center;transition:top var(--ease)}
.site-header.is-scrolled{top:10px}
.nav-capsule{
  width:100%;max-width:1200px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 20px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid rgba(228,234,245,.9);
  box-shadow:0 1px 2px rgba(16,32,64,.04),0 18px 40px -26px rgba(16,32,64,.4);
  transition:height .25s ease,background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-capsule{height:56px;background:rgba(255,255,255,.96);box-shadow:0 1px 2px rgba(16,32,64,.06),0 22px 46px -26px rgba(16,32,64,.46)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);font-weight:700;letter-spacing:-.01em;flex-shrink:0}
.brand:hover{color:var(--c-text)}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;flex-shrink:0}
.brand-text{font-size:16px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--c-primary)}
.nav-menu{display:none;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-menu a{position:relative;padding:10px 16px;border-radius:var(--r-pill);font-size:15px;font-weight:500;color:var(--c-text-2);white-space:nowrap}
.nav-menu a::after{content:"";position:absolute;left:16px;right:16px;bottom:6px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:center;transition:transform var(--ease)}
.nav-menu a:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-menu a:hover::after{transform:scaleX(1)}
.nav-menu a.is-active{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-menu a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{display:inline-flex;width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--c-line);background:#fff;align-items:center;justify-content:center;transition:background-color var(--ease),border-color var(--ease)}
.nav-toggle:hover{background:var(--c-primary-soft);border-color:#C9D9F8}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);transition:background-color var(--ease),transform var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--c-text);transition:transform var(--ease),background-color var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
@media(min-width:1024px){
  .nav-menu{display:flex}
  .nav-toggle{display:none}
}

/* 移动面板 */
.mobile-panel{
  position:fixed;inset:0;z-index:120;background:#fff;padding:96px 24px 28px;
  display:flex;flex-direction:column;
  transform:translateY(-100%);visibility:hidden;opacity:0;
  transition:transform .25s ease,opacity .25s ease,visibility .25s ease;
  overflow-y:auto;
}
.mobile-panel.is-open{transform:translateY(0);visibility:visible;opacity:1}
.mobile-panel a.m-link{height:52px;display:flex;align-items:center;border-bottom:1px solid var(--c-line);font-size:16px;font-weight:500;color:var(--c-text)}
.mobile-panel a.m-link.is-active{color:var(--c-primary)}
.mobile-panel .m-cta{margin-top:auto;padding-top:24px;display:block}
.mobile-panel .m-cta .btn{width:100%}
body.no-scroll{overflow:hidden}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-pill)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -12px rgba(35,89,214,.7)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 30px -14px rgba(35,89,214,.72)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:#C9D9F8}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:#B4CBEC}
.btn-ghost:active{transform:scale(.98)}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);padding:6px 0}
.btn-link svg{transition:transform var(--ease)}
.btn-link:hover svg{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{background:#C7D3E8;color:#fff;border-color:#C7D3E8;box-shadow:none;pointer-events:none}

/* 标签 */
.badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;font-weight:600;background:var(--c-primary-soft);color:var(--c-primary)}
.badge-teal{background:var(--c-teal-soft);color:#0B907C}
.badge-accent{background:var(--c-accent-soft);color:#C4591A}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-xs);background:#F2F5FB;color:var(--c-text-2);font-size:13px;font-weight:500}

/* 首屏 */
.page-hero{padding:120px 0 40px;background:var(--c-bg);background-image:radial-gradient(680px 380px at 88% 0%,rgba(35,89,214,.10),transparent 70%);}
@media(min-width:1024px){.page-hero{padding:150px 0 56px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:6fr 6fr;gap:56px}}
.hero-title{font-size:28px;font-weight:700;line-height:1.25;margin:18px 0 16px}
@media(min-width:768px){.hero-title{font-size:36px}}
@media(min-width:1024px){.hero-title{font-size:44px}}
.hero-title em{font-style:normal;color:var(--c-primary)}
.hero-lead{font-size:17px;color:var(--c-text-2);max-width:560px}
@media(min-width:1024px){.hero-lead{font-size:18px}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:28px;padding-top:22px;border-top:1px solid var(--c-line)}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2)}
.hero-trust svg{color:var(--c-teal);flex-shrink:0}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-xl);box-shadow:var(--shadow-md)}
.hero-float{
  position:absolute;left:16px;bottom:-24px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-md);padding:16px 20px;display:flex;gap:24px;
}
.hero-float .fv{display:flex;flex-direction:column;gap:2px}
.hero-float .fv b{font-size:22px;font-weight:700;color:var(--c-text);font-variant-numeric:tabular-nums}
.hero-float .fv span{font-size:12px;color:var(--c-text-3)}
@media(max-width:767px){.hero-float{position:static;margin-top:16px;left:auto;bottom:auto}}

/* 倒计时条 */
.countdown-bar{
  background:var(--c-primary-soft);border:1px solid #DCE7FB;border-radius:var(--r-lg);
  padding:20px 24px;display:flex;flex-wrap:wrap;align-items:center;gap:20px;justify-content:space-between;
}
.cd-left{display:flex;flex-direction:column;gap:4px;min-width:180px}
.cd-left strong{font-size:16px;font-weight:600;color:var(--c-text)}
.cd-left span{font-size:13px;color:var(--c-text-3)}
.cd-units{display:flex;gap:10px;flex-wrap:wrap}
.cd-unit{background:#fff;border-radius:var(--r-xs);padding:8px 12px;text-align:center;min-width:68px;box-shadow:var(--shadow-sm)}
.cd-num{display:block;font-size:26px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.cd-label{font-size:12px;color:var(--c-text-3)}
.cd-right{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
@media(min-width:1024px){
  .cd-num{font-size:32px}
  .cd-unit{min-width:76px;padding:10px 14px}
}
@media(max-width:575px){
  .cd-units{gap:8px}
  .cd-unit{min-width:60px;padding:6px 10px}
  .cd-num{font-size:22px}
  .cd-right{width:100%}
  .cd-right .btn{width:100%}
}

/* 时间轴 */
.timeline{position:relative;margin-top:8px}
.timeline::before{content:"";position:absolute;left:11px;top:10px;bottom:10px;width:2px;background:var(--c-line)}
.timeline-item{position:relative;padding:0 0 30px 48px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{
  position:absolute;left:0;top:2px;width:24px;height:24px;border-radius:50%;
  background:#fff;border:2px solid var(--c-primary);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;
}
.timeline-item.is-done .timeline-dot{background:var(--c-teal);border-color:var(--c-teal);color:#fff}
.timeline-time{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);font-variant-numeric:tabular-nums;margin-bottom:6px}
.timeline-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.timeline-item p{font-size:15px;color:var(--c-text-2);max-width:760px}
.timeline-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);padding:32px 24px;margin-top:28px}
@media(min-width:768px){.timeline-card{padding:40px 36px}}

/* 图墙 */
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;grid-auto-rows:150px}
.gitem{position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--c-line)}
.gitem img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.gitem::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,23,38,.05),rgba(14,23,38,.35));transition:background .3s ease}
.gitem:hover img{transform:scale(1.03)}
.gitem:hover::after{background:linear-gradient(180deg,rgba(14,23,38,.12),rgba(14,23,38,.5))}
.gitem .g-badge{position:absolute;top:12px;left:12px;z-index:2}
.gitem .g-cap{position:absolute;left:14px;bottom:12px;z-index:2;color:#fff;font-size:13px;font-weight:600;text-shadow:0 1px 6px rgba(0,0,0,.4)}
.g-span2{grid-column:span 2}
@media(min-width:768px){
  .gallery{grid-template-columns:repeat(4,1fr);grid-auto-rows:170px;gap:16px}
  .g-main{grid-column:span 2;grid-row:span 2}
  .g-wide{grid-column:span 2}
  .g-span2{grid-column:auto}
}
@media(max-width:575px){
  .g-span2{grid-column:span 2}
  .gallery{grid-auto-rows:130px}
}

/* 环节速览 */
.topic-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);overflow:hidden}
.topic-item{display:flex;align-items:center;gap:16px;padding:18px 22px;border-bottom:1px solid var(--c-line);transition:background-color var(--ease)}
.topic-item:last-child{border-bottom:0}
.topic-item:hover{background:#FAFBFE}
.topic-num{font-size:14px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;flex-shrink:0;width:28px}
.topic-body{flex:1;min-width:0}
.topic-body h3{font-size:16px;font-weight:600;margin-bottom:2px}
.topic-body p{font-size:14px;color:var(--c-text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topic-tags{display:none;gap:8px;flex-shrink:0}
@media(min-width:768px){.topic-tags{display:flex}}
.topic-arrow{flex-shrink:0;color:var(--c-text-3);transition:transform var(--ease),color var(--ease)}
.topic-item:hover .topic-arrow{transform:translateX(4px);color:var(--c-primary)}

/* 图文块 */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media(min-width:1024px){.split{grid-template-columns:6fr 6fr;gap:56px}}
.split img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-sm)}
.split h2{font-size:22px;font-weight:700;margin-bottom:14px}
@media(min-width:1024px){.split h2{font-size:28px}}
.split p{font-size:15px;margin-bottom:14px}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text-2)}
.check-list svg{flex-shrink:0;color:var(--c-teal);margin-top:5px}

/* FAQ */
.faq-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);overflow:hidden;margin-top:28px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--c-text);
  transition:background-color var(--ease),color var(--ease);
}
@media(min-width:768px){.faq-q{min-height:64px;font-size:17px}}
.faq-q:hover{background:#FAFBFE;color:var(--c-primary)}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s ease}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg)}
.faq-a{display:none;padding:0 22px 20px;font-size:15px;color:var(--c-text-2)}
.faq-item.is-open .faq-a{display:block}

/* CTA */
.cta-block{
  background:var(--c-primary);border-radius:var(--r-xl);padding:32px 24px;color:#fff;
  display:grid;grid-template-columns:1fr;gap:28px;align-items:center;
  background-image:radial-gradient(520px 260px at 100% 0%,rgba(255,255,255,.16),transparent 70%);
}
@media(min-width:768px){.cta-block{padding:40px}}
@media(min-width:1024px){.cta-block{grid-template-columns:6fr 6fr;gap:48px}}
.cta-block h2{color:#fff;font-size:22px;font-weight:700;margin-bottom:12px}
@media(min-width:1024px){.cta-block h2{font-size:28px}}
.cta-block p{color:rgba(255,255,255,.86);font-size:15px}
.cta-checks{margin-top:18px;display:grid;gap:10px}
.cta-checks li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.94)}
.cta-checks svg{color:#8FF0DF;flex-shrink:0}
.cta-form{background:#fff;border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-md)}
.cta-form label{display:block;font-size:14px;font-weight:500;color:var(--c-text);margin-bottom:8px}
.cta-form input{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-md);
  border:1px solid var(--c-line);background:#fff;color:var(--c-text);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cta-form input::placeholder{color:var(--c-text-3)}
.cta-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(35,89,214,.18)}
.cta-form input.is-error{border-color:#D64545;box-shadow:0 0 0 3px rgba(214,69,69,.14)}
.cta-form .btn{width:100%;margin-top:14px}
.form-hint{font-size:13px;color:var(--c-text-3);margin-top:10px}
.form-msg{display:none;margin-top:12px;font-size:14px;padding:10px 14px;border-radius:var(--r-xs)}
.form-msg.is-show{display:block}
.form-msg.err{background:#FDEDED;color:#B33030}
.form-msg.ok{background:var(--c-teal-soft);color:#0B7C6B}

/* 页脚 */
.site-footer{background:#EEF2F9;border-top:1px solid var(--c-line);margin-top:24px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:576px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--c-text-2);max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{width:36px;height:36px;border-radius:var(--r-md);border:1px solid var(--c-line);background:#fff;display:inline-flex;align-items:center;justify-content:center;color:var(--c-text-2)}
.footer-social a:hover{color:var(--c-primary);border-color:#C9D9F8;background:var(--c-primary-soft)}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--c-text)}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--c-text-2)}
.footer-col a:hover{color:var(--c-primary)}
.footer-contact li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--c-text-2)}
.footer-contact svg{flex-shrink:0;margin-top:5px;color:var(--c-text-3)}
.footer-bottom{margin-top:44px;border-top:1px solid var(--c-line);padding:18px 0 24px}
.footer-bottom .inner{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:center;font-size:13px;color:var(--c-text-3)}
.footer-bottom a{color:var(--c-text-3);font-size:13px}
.footer-bottom a:hover{color:var(--c-primary)}

/* 滚动淡入 */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-visible{opacity:1;transform:translateY(0)}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --c-primary:#2359D6;
  --c-primary-dark:#1A45AC;
  --c-primary-soft:#EAF1FF;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFF1E8;
  --c-teal:#12B39A;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E4EAF5;
  --c-text:#141C2B;
  --c-text-2:#4C586B;
  --c-text-3:#8B96A8;
  --c-dark:#0E1726;
  --r-xs:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,32,64,.04),0 8px 24px -14px rgba(16,32,64,.16);
  --shadow-md:0 14px 34px -14px rgba(16,32,64,.24);
  --sec:96px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text-2);
  background:var(--c-bg);
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;line-height:1.3;}
h1{font-size:44px;line-height:1.25;letter-spacing:-.01em;}
h2{font-size:30px;line-height:1.3;}
h3{font-size:19px;font-weight:600;line-height:1.45;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
em{font-style:normal;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(35,89,214,.28);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 40px;}
.section{padding:var(--sec) 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;border-radius:2px;background:var(--c-primary);}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-text-2);}
.hl{color:var(--c-primary);}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:120;padding:0 16px;transition:top .25s ease;}
.nav-capsule{
  max-width:1200px;margin:0 auto;height:64px;display:flex;align-items:center;gap:16px;
  padding:0 20px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid rgba(228,234,245,.9);box-shadow:var(--shadow-sm);
  transition:height .25s ease,background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-capsule{height:56px;background:rgba(255,255,255,.96);box-shadow:var(--shadow-md);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;letter-spacing:0;
}
.brand-text{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:-.01em;white-space:nowrap;}
.brand-text em{color:var(--c-primary);}
.nav-menu{display:flex;align-items:center;gap:2px;flex:1;justify-content:center;}
.nav-menu a{
  position:relative;padding:10px 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--c-text-2);white-space:nowrap;
}
.nav-menu a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:5px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-menu a:hover{color:var(--c-primary);}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.is-active{background:var(--c-primary-soft);color:var(--c-primary);}
.nav-menu a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--c-line);background:#fff;cursor:pointer;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--c-text);
  transform:translateX(-50%);transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) rotate(45deg);top:0;}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) rotate(-45deg);top:0;}
.mobile-panel{
  position:fixed;inset:0;z-index:110;background:#fff;padding:104px 24px 32px;
  display:none;flex-direction:column;gap:0;overflow-y:auto;
}
.mobile-panel.is-open{display:flex;}
.mobile-panel a{
  display:block;height:52px;line-height:52px;font-size:16px;font-weight:500;
  color:var(--c-text);border-bottom:1px solid var(--c-line);
}
.mobile-panel a.is-active{color:var(--c-primary);font-weight:600;}
.mobile-panel .btn{margin-top:24px;height:48px;line-height:48px;text-align:center;border-bottom:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -14px rgba(35,89,214,.9);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 30px -14px rgba(35,89,214,.8);}
.btn-primary:active{transform:scale(.98);}
.btn-primary:disabled{background:#C7D3E8;color:#fff;cursor:not-allowed;box-shadow:none;transform:none;}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary-dark);}
.btn-ghost{background:transparent;color:var(--c-primary);padding:0 4px;height:auto;}
.btn-ghost .arrow{transition:transform .2s ease;display:inline-block;margin-left:4px;}
.btn-ghost:hover{color:var(--c-primary-dark);}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:var(--r-pill);}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}

/* ============ Hero ============ */
.hero{
  position:relative;padding:160px 0 80px;
  background:
    radial-gradient(760px 420px at 88% 6%,rgba(35,89,214,.09),transparent 70%),
    var(--c-bg);
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.hero-copy{grid-column:span 6;}
.badge{
  display:inline-block;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:14px;font-weight:600;margin-bottom:20px;
}
.hero h1{margin-bottom:20px;font-size:44px;}
.hero-sub{font-size:18px;line-height:1.75;color:var(--c-text-2);max-width:540px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:32px;}
.trust-bar{display:flex;flex-wrap:wrap;gap:12px 24px;}
.trust-bar li{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--c-text-2);}
.trust-bar li::before{
  content:"";width:16px;height:16px;border-radius:50%;
  background:var(--c-primary-soft);
  box-shadow:inset 0 0 0 4px var(--c-primary);
}
.hero-figure{grid-column:span 6;position:relative;}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-xl);box-shadow:var(--shadow-sm);}
.hero-card{
  position:absolute;left:-16px;bottom:24px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-md);padding:18px 20px;min-width:236px;
}
.hero-card-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:7px 0;}
.hero-card-row + .hero-card-row{border-top:1px solid var(--c-line);}
.hero-card-row span{font-size:13px;color:var(--c-text-3);}
.hero-card-row strong{font-size:17px;color:var(--c-primary);font-variant-numeric:tabular-nums;}

/* ============ 数据指标条 ============ */
.stats-band{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:48px 0;}
.stat{padding:0 28px;}
.stat:first-child{padding-left:0;}
.stat + .stat{border-left:1px solid var(--c-line);}
.stat strong{
  display:block;font-size:38px;font-weight:700;color:var(--c-primary);
  line-height:1.2;font-variant-numeric:tabular-nums;
}
.stat strong small{font-size:18px;font-weight:600;margin-left:4px;color:var(--c-text-2);}
.stat span{display:block;margin-top:6px;font-size:15px;font-weight:600;color:var(--c-text);}
.stat p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--c-text-3);}

/* ============ 图文区块 ============ */
.split{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.split-copy{grid-column:span 6;}
.split-copy h2{margin-bottom:16px;position:relative;padding-left:16px;}
.split-copy h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;border-radius:2px;background:var(--c-primary);}
.split-copy p{font-size:16px;}
.soft-list{margin-top:20px;display:grid;gap:14px;}
.soft-list li{display:flex;gap:12px;font-size:15px;color:var(--c-text-2);}
.soft-list li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:2px;
  background:var(--c-primary);margin-top:11px;
}
.split-figure{grid-column:span 6;}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-sm);}

/* ============ 服务明细表 ============ */
.table-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.table-scroll{width:100%;overflow-x:auto;}
table{width:100%;border-collapse:collapse;min-width:680px;}
th,td{padding:16px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--c-line);vertical-align:top;}
th{background:var(--c-primary-soft);color:var(--c-text);font-weight:600;font-size:14px;letter-spacing:.01em;}
tbody tr:nth-child(even){background:#FAFCFF;}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover{background:#F4F8FF;}
td strong{color:var(--c-text);font-weight:600;}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;white-space:nowrap;
}
.tag-teal{background:rgba(18,179,154,.12);color:#0E8E7B;}
.tag-accent{background:var(--c-accent-soft);color:#C1541A;}
.table-note{margin-top:16px;font-size:14px;color:var(--c-text-3);}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step;}
.flow li{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.flow li:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:#D3E0F7;}
.flow-num{
  display:inline-block;font-size:15px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;margin-bottom:12px;
}
.flow h3{margin-bottom:8px;}
.flow p{font-size:14px;line-height:1.75;color:var(--c-text-2);}

/* ============ FAQ ============ */
.faq-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:16px 24px;background:transparent;border:0;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--c-text);text-align:left;transition:background-color .2s ease,color .2s ease;
}
.faq-q:hover{background:#F8FAFF;color:var(--c-primary);}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;transition:transform .2s ease;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-item.is-open .faq-a{max-height:520px;}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-text-2);}

/* ============ CTA ============ */
.cta-band{
  display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;
  background:var(--c-primary-soft);border-radius:var(--r-xl);padding:40px;
}
.cta-copy{grid-column:span 7;}
.cta-copy h2{margin-bottom:12px;}
.cta-copy p{font-size:16px;max-width:560px;}
.check-list{margin-top:20px;display:grid;gap:10px;}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;font-weight:500;color:var(--c-text-2);}
.check-list li::before{
  content:"";flex:0 0 auto;width:16px;height:16px;margin-top:5px;border-radius:50%;
  border:2px solid var(--c-teal);position:relative;
}
.cta-action{grid-column:span 5;display:flex;flex-direction:column;align-items:flex-start;gap:12px;}
.cta-note{font-size:13px;color:var(--c-text-3);}

/* ============ 页脚 ============ */
.site-footer{background:#EFF3FA;border-top:1px solid var(--c-line);margin-top:var(--sec);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px 32px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--c-text-2);max-width:320px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);background:#fff;color:var(--c-text-2);
  display:flex;align-items:center;justify-content:center;transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.footer-social a:hover{color:var(--c-primary);border-color:#C9D9F6;transform:translateY(-2px);}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col li{font-size:14px;color:var(--c-text-2);}
.footer-col a{color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;}
.footer-contact svg{flex:0 0 auto;margin-top:4px;color:var(--c-primary);}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--c-line);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom p{margin:0;}
.footer-bottom a{color:var(--c-text-3);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  h1{font-size:40px;}
  .hero h1{font-size:40px;}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  .container{padding:0 32px;}
  .nav-menu{display:none;}
  .nav-toggle{display:block;}
  .nav-actions .btn-sm{display:none;}
  .hero{padding:140px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-copy,.hero-figure{grid-column:span 12;}
  .hero h1{font-size:36px;}
  .hero-card{left:16px;bottom:16px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 0;padding:40px 0;}
  .stat{padding:0 24px;}
  .stat:nth-child(odd){padding-left:0;border-left:0;}
  .stat:nth-child(even){border-left:1px solid var(--c-line);}
  .split-copy,.split-figure{grid-column:span 12;}
  .split-figure{order:-1;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:32px;}
  .cta-copy,.cta-action{grid-column:span 12;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  :root{--sec:56px;}
  .container{padding:0 24px;}
  body{font-size:15px;}
  h1{font-size:30px;}
  .hero h1{font-size:28px;}
  h2{font-size:23px;}
  h3{font-size:17px;}
  .hero{padding:120px 0 52px;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-card{position:static;margin-top:16px;min-width:0;}
  .stats-grid{grid-template-columns:1fr;gap:0;padding:8px 0 24px;}
  .stat{padding:20px 0;border-left:0 !important;border-top:1px solid var(--c-line);}
  .stat:first-child{border-top:0;}
  .stat strong{font-size:30px;}
  .flow{grid-template-columns:1fr;}
  .faq-q{min-height:56px;font-size:16px;padding:14px 18px;}
  .faq-a p{padding:0 18px 18px;}
  .cta-band{padding:26px;border-radius:var(--r-lg);}
  .cta-action .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{justify-content:center;text-align:center;}
  .brand-text{font-size:16px;}
}
@media (max-width:575px){
  .brand-text{font-size:15px;}
  .brand-mark{width:28px;height:28px;font-size:15px;border-radius:9px;}
  .nav-capsule{height:58px;padding:0 14px;}
  .site-header{top:10px;padding:0 10px;}
}

/* roulang page: category4 */
:root{
  --c-primary:#2359D6;
  --c-primary-dark:#1A45AC;
  --c-primary-soft:#EAF1FF;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFF1E8;
  --c-teal:#12B39A;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E4EAF5;
  --c-text:#141C2B;
  --c-text-2:#4C586B;
  --c-text-3:#8B96A8;
  --c-dark:#0E1726;
  --r-xs:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,64,.04),0 8px 24px -14px rgba(16,32,64,.16);
  --sh-2:0 14px 34px -14px rgba(16,32,64,.24);
  --wrap:1200px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text-2);
  background:var(--c-bg);
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{color:var(--c-text);margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(35,89,214,.28);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 40px}
.section{padding:var(--sec) 0}
.section-tight{padding:64px 0}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:16px;left:0;right:0;
  z-index:90;
  padding:0 16px;
  pointer-events:none;
}
.nav-capsule{
  pointer-events:auto;
  max-width:var(--wrap);
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 20px 0 22px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid rgba(228,234,245,.9);
  border-radius:var(--r-pill);
  box-shadow:0 10px 30px -20px rgba(16,32,64,.4);
  transition:height .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header.scrolled .nav-capsule{
  height:56px;
  background:rgba(255,255,255,.96);
  box-shadow:0 16px 36px -22px rgba(16,32,64,.55);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  color:var(--c-text);
  white-space:nowrap;
  text-decoration:none;
}
.brand:hover{text-decoration:none;color:var(--c-text)}
.brand-mark{
  width:32px;height:32px;
  flex:0 0 32px;
  display:grid;place-items:center;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  font-size:16px;
  font-weight:700;
  letter-spacing:0;
}
.brand-text{font-size:16px;letter-spacing:-.01em}
.brand-text em{font-style:normal;color:var(--c-primary)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-menu a{
  display:inline-block;
  padding:10px 16px;
  font-size:15px;
  font-weight:500;
  color:var(--c-text-2);
  border-radius:var(--r-pill);
  text-decoration:none;
  transition:background .2s ease,color .2s ease;
}
.nav-menu a:hover{color:var(--c-primary);background:var(--c-primary-soft);text-decoration:none}
.nav-menu a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  background:#fff;
  cursor:pointer;
  position:relative;
  padding:0;
}
.nav-toggle span{
  position:absolute;
  left:50%;top:50%;
  width:18px;height:2px;
  margin:-1px 0 0 -9px;
  background:var(--c-text);
  border-radius:2px;
  transition:background .2s ease;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;
  width:18px;height:2px;
  background:var(--c-text);
  border-radius:2px;
  transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

.mobile-panel{
  position:fixed;
  inset:0;
  z-index:80;
  background:#fff;
  padding:96px 24px 32px;
  transform:translateY(-102%);
  transition:transform .3s ease;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:0;
}
.mobile-panel.is-open{transform:translateY(0)}
.mobile-panel a.m-panel-link{
  display:block;
  padding:16px 4px;
  min-height:52px;
  font-size:16px;
  font-weight:500;
  color:var(--c-text);
  border-bottom:1px solid var(--c-line);
  text-decoration:none;
}
.mobile-panel a.m-panel-link.is-active{color:var(--c-primary);font-weight:600}
.mobile-panel .btn{margin-top:24px;width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  text-decoration:none;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(35,89,214,.9)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--c-primary)}
.btn-light:hover{background:#F2F6FF;color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:var(--r-pill)}
.btn:disabled{background:#C7D3E8;color:#fff;cursor:not-allowed;box-shadow:none;transform:none}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  height:auto;padding:0;border:0;background:none;
  color:var(--c-primary);font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;
}
.btn-ghost svg{transition:transform .2s ease}
.btn-ghost:hover svg{transform:translateX(4px)}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;
  border-radius:var(--r-pill);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:13px;
  font-weight:600;
  line-height:1.6;
}
.tag-accent{background:var(--c-accent-soft);color:#C2551A}
.tag-teal{background:rgba(18,179,154,.12);color:#0C8574}
.badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;
  border-radius:var(--r-pill);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:13px;font-weight:600;
}
.meta{font-size:13px;color:var(--c-text-3);font-weight:500}

/* ============ Hero ============ */
.page-hero{
  padding:148px 0 72px;
  background:
    radial-gradient(900px 420px at 88% -10%,rgba(35,89,214,.10),transparent 62%),
    var(--c-bg);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;
  align-items:center;
}
.hero-copy h1{
  font-size:44px;
  line-height:1.25;
  margin:18px 0 16px;
}
.hero-copy h1 em{font-style:normal;color:var(--c-primary)}
.hero-sub{font-size:18px;line-height:1.8;color:var(--c-text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:24px;
  margin-top:32px;padding-top:24px;
  border-top:1px solid var(--c-line);
}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);font-weight:500}
.hero-trust svg{flex:0 0 auto;color:var(--c-teal)}
.hero-media{position:relative}
.hero-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--r-xl);
  box-shadow:var(--sh-2);
}
.float-card{
  position:absolute;
  left:-18px;bottom:-24px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  padding:18px 20px;
  display:flex;
  gap:22px;
}
.float-card .fc-item{display:flex;flex-direction:column;gap:2px;min-width:74px}
.float-card .fc-num{font-size:24px;font-weight:700;color:var(--c-text);font-variant-numeric:tabular-nums;line-height:1.2}
.float-card .fc-num span{font-size:14px;font-weight:600;color:var(--c-primary);margin-left:2px}
.float-card .fc-label{font-size:13px;color:var(--c-text-3);font-weight:500}

/* ============ 板块标题 ============ */
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head h2{
  font-size:30px;
  line-height:1.3;
  position:relative;
  padding-left:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.3em;
  width:4px;height:22px;border-radius:2px;background:var(--c-primary);
}
.sec-head p{margin-top:14px;font-size:16px;color:var(--c-text-2)}

/* ============ 目录 ============ */
.toc-layout{
  display:grid;
  grid-template-columns:262px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.toc{
  position:sticky;
  top:104px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:22px;
}
.toc h3{font-size:15px;font-weight:700;margin-bottom:12px}
.toc ol{counter-reset:toc}
.toc li{counter-increment:toc}
.toc a{
  display:block;
  position:relative;
  padding:9px 10px 9px 34px;
  font-size:14px;
  color:var(--c-text-2);
  border-radius:var(--r-xs);
  text-decoration:none;
  line-height:1.6;
}
.toc a::before{
  content:counter(toc,decimal-leading-zero);
  position:absolute;left:10px;top:9px;
  font-size:12px;font-weight:700;
  color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}
.toc a:hover{background:var(--c-primary-soft);color:var(--c-primary);text-decoration:none}
.toc a.is-current{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}
.toc a.is-current::before{color:var(--c-primary)}
.toc-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);line-height:1.7}
.toc-mobile{display:none;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);margin-bottom:28px}
.toc-mobile summary{
  list-style:none;
  cursor:pointer;
  padding:16px 20px;
  font-size:15px;font-weight:600;color:var(--c-text);
  display:flex;align-items:center;justify-content:space-between;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{
  content:"+";font-size:18px;color:var(--c-primary);font-weight:600;
}
.toc-mobile[open] summary::after{content:"−"}
.toc-mobile ul{padding:0 20px 16px}
.toc-mobile li + li{border-top:1px solid var(--c-line)}
.toc-mobile a{display:block;padding:12px 0;font-size:14px;color:var(--c-text-2);text-decoration:none}
.toc-mobile a:hover{color:var(--c-primary)}

/* ============ 正文分节 ============ */
.prose section{scroll-margin-top:110px}
.prose section + section{margin-top:56px}
.prose h2{
  font-size:28px;
  line-height:1.35;
  position:relative;
  padding-left:16px;
  margin-bottom:18px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.3em;
  width:4px;height:22px;border-radius:2px;background:var(--c-primary);
}
.prose h3{font-size:19px;line-height:1.5;margin:28px 0 10px}
.prose p{font-size:16px;line-height:1.85;color:var(--c-text-2);margin-bottom:16px}
.prose ul{margin:4px 0 18px}
.prose ul li{
  position:relative;
  padding-left:20px;
  margin-bottom:10px;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text-2);
}
.prose ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;background:var(--c-primary);
}
.prose figure{margin:24px 0 8px}
.prose figure img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-lg);
}
.prose figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--c-text-3);
  text-align:center;
}
.callout{
  background:var(--c-primary-soft);
  border-radius:var(--r-md);
  padding:16px 20px;
  font-size:15px;
  line-height:1.8;
  color:#1E4BB5;
  margin:20px 0 22px;
}
.rule-table{
  width:100%;
  border-collapse:collapse;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  overflow:hidden;
  font-size:15px;
  margin:20px 0 24px;
  background:#fff;
}
.rule-table th,.rule-table td{
  padding:13px 16px;
  text-align:left;
  border-bottom:1px solid var(--c-line);
}
.rule-table thead th{background:var(--c-primary-soft);color:var(--c-text);font-weight:600}
.rule-table tbody tr:nth-child(even){background:#FAFCFF}
.rule-table tbody tr:last-child td{border-bottom:0}

/* ============ FAQ ============ */
.faq-list{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:16px 24px;
  background:transparent;
  border:0;
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  text-align:left;
  cursor:pointer;
  transition:background .2s ease;
}
.faq-q:hover{background:#FAFCFF}
.faq-icon{
  position:relative;
  flex:0 0 20px;
  width:20px;height:20px;
  border-radius:50%;
  background:var(--c-primary-soft);
  transition:transform .2s ease,background .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:opacity .2s ease}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{
  overflow:hidden;
  max-height:0;
  transition:max-height .28s ease;
}
.faq-a-inner{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
  max-width:820px;
}

/* ============ CTA ============ */
.cta-band{
  background:var(--c-primary);
  color:#fff;
  border-radius:var(--r-xl);
  padding:44px;
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);
  gap:36px;
  align-items:center;
}
.cta-band h2{color:#fff;font-size:26px;line-height:1.4;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;line-height:1.85;max-width:560px}
.cta-checks{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:18px}
.cta-checks li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.95)}
.cta-checks svg{flex:0 0 auto;color:#8EF0DF}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn{width:100%}
.cta-actions .cta-hint{font-size:13px;color:rgba(255,255,255,.72);text-align:center}

/* ============ 区块分隔小结构 ============ */
.slim-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--c-line);margin-top:8px}
.slim-item{padding:26px 26px 4px 0;border-right:1px solid var(--c-line)}
.slim-item:last-child{border-right:0;padding-right:0}
.slim-item strong{display:block;font-size:22px;font-weight:700;color:var(--c-text);font-variant-numeric:tabular-nums;line-height:1.3}
.slim-item span{display:block;font-size:14px;color:var(--c-text-3);margin-top:6px}

/* ============ 页脚 ============ */
.site-footer{
  background:#EEF2F9;
  border-top:1px solid var(--c-line);
  margin-top:var(--sec);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--c-text-2);margin-top:16px;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:var(--r-md);
  background:#fff;
  border:1px solid var(--c-line);
  color:var(--c-primary);
  transition:background .2s ease,transform .2s ease,color .2s ease;
}
.footer-social a:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px);text-decoration:none}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:14px;color:var(--c-text-2)}
.footer-col ul li a:hover{color:var(--c-primary)}
.footer-contact li{
  display:flex;align-items:flex-start;gap:9px;
  font-size:14px;color:var(--c-text-2);
  line-height:1.7;
}
.footer-contact svg{flex:0 0 auto;margin-top:5px;color:var(--c-primary)}
.footer-bottom{
  margin-top:52px;
  border-top:1px solid var(--c-line);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-3)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 32px}
}
@media (max-width:1023px){
  :root{--sec:72px}
  .container{padding:0 32px}
  .nav-menu{display:none}
  .nav-toggle{display:block}
  .nav-actions .btn-sm{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .page-hero{padding:132px 0 56px}
  .hero-copy h1{font-size:34px}
  .float-card{left:12px;bottom:-20px}
  .toc-layout{grid-template-columns:1fr;gap:0}
  .toc{display:none}
  .toc-mobile{display:block}
  .cta-band{grid-template-columns:1fr;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .footer-brand{grid-column:1 / -1}
  .slim-grid{grid-template-columns:1fr;border-top:0;gap:0}
  .slim-item{border-right:0;border-top:1px solid var(--c-line);padding:20px 0 0}
}
@media (max-width:767px){
  :root{--sec:56px}
  .container{padding:0 20px}
  .site-header{top:10px;padding:0 12px}
  .nav-capsule{height:58px;padding:0 12px 0 14px}
  .brand-text{font-size:15px}
  .brand-mark{width:28px;height:28px;flex-basis:28px;font-size:14px;border-radius:9px}
  .page-hero{padding:112px 0 44px}
  .hero-copy h1{font-size:28px;margin-top:14px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-trust{gap:12px 20px}
  .sec-head h2{font-size:22px}
  .prose h2{font-size:22px}
  .prose h3{font-size:17px}
  .float-card{position:static;margin-top:16px;left:auto;bottom:auto;width:100%;justify-content:space-between;flex-wrap:wrap;gap:14px}
  .faq-q{font-size:16px;min-height:56px;padding:14px 18px}
  .faq-a-inner{padding:0 18px 20px}
  .cta-band{padding:28px 22px;border-radius:16px}
  .cta-band h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{justify-content:center;text-align:center}
  .rule-table{font-size:14px}
  .rule-table th,.rule-table td{padding:11px 12px}
  .mobile-panel{padding:88px 20px 28px}
}
@media (max-width:520px){
  .hero-copy h1{font-size:26px}
  .float-card .fc-num{font-size:21px}
  .prose h2{font-size:20px}
}