/* roulang page: index */
:root{
  --bg-page:#F4F6FB; --bg-card:#FFFFFF; --bg-soft:#EDF1FA;
  --ink-900:#0C1222; --ink-700:#2A3446; --ink-500:#5A6680; --ink-300:#8A94A6;
  --brand-700:#18389E; --brand-600:#1F47D6; --brand-500:#3568F0; --brand-100:#E3EAFD;
  --neon-400:#29E7C4; --accent-500:#FF6A3D;
  --nav-bg:#080D1A; --nav-line:rgba(41,231,196,.45);
  --line:#E1E7F2; --line-strong:#CBD5E6;
  --r-card:16px; --r-img:12px; --r-btn:10px; --r-badge:6px; --r-band:20px;
  --sh-1:0 8px 24px rgba(12,18,34,.06);
  --sh-2:0 16px 40px rgba(12,18,34,.10);
  --sh-3:0 20px 56px rgba(12,18,34,.14);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg-page);color:var(--ink-500);
  font-family:var(--font-cn);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;padding-top:68px;
}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
img{max-width:100%;display:block;}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;margin:0;letter-spacing:-.01em;}
p{margin:0 0 18px;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container{max-width:1320px;}}
.row{--bs-gutter-x:24px;--bs-gutter-y:24px;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(8,13,26,.94);backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,var(--nav-line),transparent);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand svg{flex:none;}
.brand-text{font-family:var(--font-num);font-weight:700;font-size:19px;color:#fff;letter-spacing:.01em;}
.brand-sub{font-size:12px;color:rgba(255,255,255,.6);border-left:1px solid rgba(255,255,255,.18);padding-left:10px;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.main-nav a{
  position:relative;font-size:15px;color:rgba(255,255,255,.72);padding:22px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:16px;height:2px;
  background:var(--neon-400);transition:left .22s ease,right .22s ease;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{left:0;right:0;}
.main-nav a.active{color:#fff;text-shadow:0 0 12px rgba(41,231,196,.45);}
.main-nav a.active::after{left:0;right:0;}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:26px;}
.btn-neon{
  display:inline-flex;align-items:center;gap:8px;background:var(--neon-400);color:#06121A;
  font-size:15px;font-weight:600;padding:10px 18px;border-radius:var(--r-btn);
  transition:box-shadow .2s ease,background .2s ease,transform .2s ease;border:0;
}
.btn-neon:hover{background:#4DF0D2;color:#06121A;box-shadow:0 0 0 4px rgba(41,231,196,.18);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.18);border-radius:10px;
  background:transparent;color:#fff;font-size:18px;
}
.nav-toggle.is-open{border-color:var(--neon-400);color:var(--neon-400);}
.mobile-drawer{
  display:none;background:var(--nav-bg);border-top:1px solid rgba(255,255,255,.08);
  padding:8px 24px 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;gap:12px;color:rgba(255,255,255,.76);font-size:16px;
  padding:14px 0;border-bottom:1px solid rgba(255,255,255,.07);
}
.mobile-drawer a span.num{font-family:var(--font-num);font-size:12px;color:var(--neon-400);}
.mobile-drawer a.active{color:#fff;}
.mobile-drawer .btn-neon{width:100%;justify-content:center;margin-top:18px;}

/* ---------- 通用 ---------- */
.sec{position:relative;padding:96px 0;}
.sec-soft{background:var(--bg-soft);}
.sec-white{background:#fff;}
.sec-head{margin-bottom:40px;}
.sec-head h2{font-size:32px;line-height:1.3;margin-bottom:12px;}
.sec-head p{max-width:640px;color:var(--ink-500);margin:0;}
.sec-num{
  display:block;font-family:var(--font-num);font-size:96px;font-weight:700;line-height:1;
  color:rgba(31,71,214,.05);letter-spacing:-.04em;margin-bottom:-42px;user-select:none;
}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-700);
  background:var(--brand-100);border-radius:var(--r-badge);padding:4px 10px;margin-bottom:14px;
}
.badge-cat{
  display:inline-block;font-size:13px;color:var(--brand-700);background:var(--brand-100);
  border-radius:var(--r-badge);padding:3px 10px;line-height:1.6;
}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;background:var(--brand-600);color:#fff;
  font-size:15px;font-weight:600;padding:13px 24px;border-radius:var(--r-btn);
  box-shadow:0 10px 24px rgba(31,71,214,.25);border:0;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-main:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--brand-600);
  font-size:15px;font-weight:600;padding:12px 22px;border-radius:var(--r-btn);
  border:1px solid var(--brand-600);transition:background .2s ease,color .2s ease;
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;}
.link-arrow i{transition:transform .2s ease;font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:88vh;display:flex;align-items:center;padding:72px 0 84px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,#F4F6FB 0%,rgba(244,246,251,.94) 42%,rgba(255,255,255,.72) 66%,rgba(255,255,255,.35) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero h1{
  font-size:clamp(32px,4.6vw,54px);line-height:1.14;font-weight:700;letter-spacing:-.02em;margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--brand-600);}
.hero-sub{font-size:18px;color:var(--ink-700);font-weight:600;margin-bottom:16px;}
.hero-txt{max-width:540px;color:var(--ink-500);margin-bottom:30px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-stats{display:flex;flex-wrap:wrap;align-items:center;gap:0;}
.hero-stats .stat{padding:0 26px;border-left:1px solid var(--line-strong);}
.hero-stats .stat:first-child{border-left:0;padding-left:0;}
.hero-stats .num{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--ink-900);line-height:1.2;}
.hero-stats .num small{font-size:14px;font-weight:600;margin-left:2px;color:var(--brand-600);}
.hero-stats .lbl{font-size:13px;color:var(--ink-300);}
.hero-visual{
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-3);border:1px solid var(--line);
  background:#fff;
}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual .cap{
  padding:14px 18px;font-size:13px;color:var(--ink-500);display:flex;align-items:center;gap:8px;
}
.hero-visual .cap i{color:var(--neon-400);}

/* ---------- 卖点 ---------- */
.value-list{border-top:1px solid var(--line);}
.value-item{
  display:flex;gap:24px;padding:24px 18px;border-bottom:1px solid var(--line);
  transition:background .2s ease,transform .2s ease;
}
.value-item:hover{background:linear-gradient(90deg,var(--brand-100),rgba(227,234,253,0));transform:translateX(4px);}
.value-item .vnum{
  font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--neon-400);
  min-width:48px;line-height:1.4;
}
.value-item h3{font-size:19px;margin-bottom:6px;}
.value-item p{margin:0;font-size:15px;}
.sticky-col{position:sticky;top:104px;}

/* ---------- 演示 ---------- */
.demo-tabs{border-bottom:1px solid var(--line);gap:8px;margin-bottom:32px;}
.demo-tabs .nav-link{
  border:0;border-bottom:2px solid transparent;border-radius:0;background:transparent;
  color:var(--ink-500);font-size:15px;font-weight:600;padding:12px 18px;
}
.demo-tabs .nav-link:hover{color:var(--brand-600);}
.demo-tabs .nav-link.active{color:var(--brand-600);border-bottom-color:var(--neon-400);background:transparent;}
.step-list li{
  display:flex;gap:16px;padding:16px 18px;border-radius:var(--r-card);cursor:default;
  border-left:3px solid transparent;transition:background .2s ease,border-color .2s ease;
}
.step-list li.on{background:#fff;border-left-color:var(--neon-400);box-shadow:var(--sh-1);}
.step-list .dot{
  flex:none;width:26px;height:26px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);
  font-family:var(--font-num);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.step-list h3{font-size:17px;margin-bottom:4px;}
.step-list p{font-size:14px;margin:0;color:var(--ink-500);}
.window-frame{border-radius:var(--r-card);overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--sh-2);}
.window-bar{display:flex;align-items:center;gap:6px;padding:10px 14px;background:var(--bg-soft);border-bottom:1px solid var(--line);}
.window-bar i{width:9px;height:9px;border-radius:50%;background:var(--line-strong);display:block;}
.window-bar i:first-child{background:var(--accent-500);}
.window-frame img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mini-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--sh-1);height:100%;transition:transform .2s ease,box-shadow .2s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.mini-card i.ico{font-size:18px;color:var(--brand-600);margin-bottom:12px;display:block;}
.mini-card h3{font-size:18px;margin-bottom:8px;}
.mini-card p{font-size:14px;margin:0;}

/* ---------- 证据 ---------- */
.stat-card{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--neon-400);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);
}
.stat-card .num{font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--ink-900);line-height:1.2;}
.stat-card .num small{font-size:15px;color:var(--brand-600);margin-left:3px;}
.stat-card .lbl{font-size:13px;color:var(--ink-300);}
.rail{display:flex;gap:20px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory;}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:6px;}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
}
.rail-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.rail-card .rc-body{padding:18px 20px;}
.rail-card h3{font-size:18px;margin-bottom:8px;}
.rail-card p{font-size:14px;margin:0;color:var(--ink-500);}
.quote-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 26px 22px;box-shadow:var(--sh-1);height:100%;
}
.quote-card::before{
  content:"";position:absolute;left:26px;top:22px;width:26px;height:20px;
  border-top:2px solid var(--neon-400);border-left:2px solid var(--neon-400);border-radius:4px 0 0 0;
}
.quote-card p{font-size:15px;color:var(--ink-700);margin:22px 0 16px;}
.quote-card .who{font-size:13px;color:var(--ink-300);}

/* ---------- 内容动态 ---------- */
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-thumb{overflow:hidden;display:block;}
.news-thumb img{width:100%;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-lg .news-thumb img{aspect-ratio:16/9;}
.news-sm .news-thumb img{aspect-ratio:16/10;}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-300);}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong);}
.news-body h3{font-size:19px;line-height:1.5;}
.news-lg .news-body h3{font-size:22px;}
.news-body h3 a{color:var(--ink-900);}
.news-body h3 a:hover{color:var(--brand-600);}
.news-body p{font-size:14px;margin:0;color:var(--ink-500);}
.news-text-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;gap:10px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-text-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-text-card h3{font-size:17px;line-height:1.5;}
.news-text-card h3 a{color:var(--ink-900);}
.news-text-card h3 a:hover{color:var(--brand-600);}
.news-text-card p{font-size:14px;margin:0;flex:1;}
.empty-panel{
  border:1px dashed var(--line-strong);background:var(--bg-soft);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;
}
.empty-panel i{font-size:26px;color:var(--ink-300);display:block;margin-bottom:12px;}
.empty-panel p{margin:0 0 18px;color:var(--ink-500);}

/* ---------- 价格 ---------- */
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px 26px;
  box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;position:relative;
  transition:transform .2s ease,box-shadow .2s ease;
}
.price-card:hover{box-shadow:var(--sh-2);}
.price-card .tier{font-size:14px;font-weight:600;color:var(--brand-700);background:var(--brand-100);border-radius:var(--r-badge);padding:4px 10px;align-self:flex-start;margin-bottom:16px;}
.price-card .fee{font-family:var(--font-num);font-size:38px;font-weight:700;color:var(--accent-500);line-height:1.1;}
.price-card .fee small{font-size:14px;color:var(--ink-300);font-family:var(--font-cn);font-weight:500;margin-left:6px;}
.price-card .fee-desc{font-size:13px;color:var(--ink-300);margin:8px 0 20px;}
.price-card ul{margin-bottom:24px;flex:1;}
.price-card li{display:flex;gap:10px;font-size:14px;color:var(--ink-500);padding:7px 0;}
.price-card li i{color:var(--brand-600);font-size:13px;margin-top:6px;}
.price-card.hot{transform:translateY(-16px);border-top:4px solid var(--neon-400);box-shadow:var(--sh-3);}
.price-card.hot:hover{transform:translateY(-16px);}
.price-card .flag{
  position:absolute;top:18px;right:18px;background:var(--accent-500);color:#fff;
  font-size:12px;font-weight:600;border-radius:var(--r-badge);padding:3px 9px;
}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .2s ease;
}
.faq .accordion-item:has(.accordion-button:not(.collapsed)){box-shadow:var(--sh-2);}
.faq .accordion-item:has(.accordion-button:not(.collapsed))::after{content:"";}
.faq .accordion-item{position:relative;}
.faq .accordion-item:has(.accordion-button:not(.collapsed)) .accordion-button::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--neon-400);
}
.faq .accordion-button{
  font-size:17px;font-weight:600;color:var(--ink-900);background:#fff;box-shadow:none;
  padding:18px 22px;border-radius:var(--r-card);position:relative;gap:12px;
}
.faq .accordion-button:not(.collapsed){color:var(--brand-600);background:#fff;}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq .accordion-button::after{
  content:"+";font-size:20px;line-height:1;background:none;width:auto;height:auto;
  transform:none;color:var(--ink-300);margin-left:auto;transition:transform .2s ease,color .2s ease;
}
.faq .accordion-button:not(.collapsed)::after{content:"−";color:var(--brand-600);transform:rotate(180deg);}
.faq .accordion-body{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--ink-500);}

/* ---------- 尾部 CTA ---------- */
.cta-band{
  background:var(--nav-bg);border-radius:var(--r-band);padding:44px 40px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--nav-line),transparent);
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.68);margin:0;font-size:15px;max-width:560px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--nav-bg);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0;position:relative;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--nav-line),transparent);
}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;}
.site-footer a{color:rgba(255,255,255,.72);font-size:14px;}
.site-footer a:hover{color:var(--neon-400);}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.6);max-width:320px;margin:14px 0 16px;}
.footer-links li{margin-bottom:11px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:11px;color:rgba(255,255,255,.72);}
.footer-contact i{color:var(--neon-400);font-size:13px;margin-top:6px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.09);padding:22px 0;
  font-size:13px;color:rgba(255,255,255,.5);display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1030;
  display:inline-flex;align-items:center;gap:10px;background:var(--neon-400);color:#06121A;
  font-weight:600;font-size:15px;padding:13px 22px;border-radius:999px;
  box-shadow:0 12px 32px rgba(41,231,196,.28);
  opacity:0;transform:translateY(14px);pointer-events:none;transition:opacity .28s ease,transform .28s ease;
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{color:#06121A;background:#4DF0D2;}
.mobile-bar{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .brand-sub{display:none;}
  .main-nav{gap:18px;}
  .main-nav a{font-size:14px;}
}
@media (max-width:991px){
  body{padding-top:60px;}
  .nav-inner{height:60px;}
  .main-nav,.nav-actions .btn-neon{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .sec{padding:72px 0;}
  .hero{min-height:auto;padding:56px 0 64px;}
  .hero .row{--bs-gutter-y:32px;}
  .sec-num{font-size:72px;margin-bottom:-30px;}
  .sticky-col{position:static;}
  .price-card.hot{transform:none;}
  .price-card.hot:hover{transform:translateY(-4px);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;}
  .float-cta{display:none;}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    position:fixed;left:0;right:0;bottom:0;z-index:1030;
    background:rgba(8,13,26,.96);backdrop-filter:blur(12px);
    padding:12px 20px calc(12px + env(safe-area-inset-bottom));
    border-top:1px solid rgba(41,231,196,.35);
  }
  .mobile-bar span{color:rgba(255,255,255,.78);font-size:13px;}
  .mobile-bar a{
    background:var(--neon-400);color:#06121A;font-size:14px;font-weight:600;
    padding:10px 18px;border-radius:var(--r-btn);white-space:nowrap;
  }
  .site-footer{padding-bottom:72px;}
}
@media (max-width:575px){
  .sec{padding:56px 0;}
  .sec-head h2{font-size:26px;}
  .hero h1{font-size:30px;}
  .hero-stats .stat{padding:0 16px;}
  .hero-stats .num{font-size:22px;}
  .sec-num{font-size:56px;}
  .news-body h3,.news-lg .news-body h3{font-size:18px;}
  .rail-card{flex:0 0 250px;}
}

/* roulang page: article */
:root{
  --bg-page:#F4F6FB;
  --bg-card:#FFFFFF;
  --bg-soft:#EDF1FA;
  --ink-900:#0C1222;
  --ink-700:#2A3446;
  --ink-500:#5A6680;
  --ink-300:#8A94A6;
  --brand-700:#18389E;
  --brand-600:#1F47D6;
  --brand-500:#3568F0;
  --brand-100:#E3EAFD;
  --neon-400:#29E7C4;
  --accent-500:#FF6A3D;
  --nav-bg:#080D1A;
  --nav-line:rgba(41,231,196,.45);
  --line:#E1E7F2;
  --line-strong:#CBD5E6;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-band:20px;
  --sh-1:0 8px 24px rgba(12,18,34,.06);
  --sh-2:0 16px 40px rgba(12,18,34,.10);
  --sh-3:0 20px 56px rgba(12,18,34,.14);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--ink-500);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4,h5{color:var(--ink-900);font-weight:700;margin:0;line-height:1.3;}
p{margin:0 0 18px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(8,13,26,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.5),transparent);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;}
.brand:hover{color:#fff;}
.brand-text{font-family:var(--font-num);font-size:19px;font-weight:700;letter-spacing:.2px;}
.brand-sub{font-size:12px;color:rgba(255,255,255,.6);margin-left:10px;font-family:var(--font-cn);}
.main-nav{display:flex;align-items:center;gap:28px;flex-wrap:wrap;}
.main-nav a{
  position:relative;font-size:15px;color:rgba(255,255,255,.72);
  padding:22px 0;transition:color .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:14px;height:2px;
  background:var(--neon-400);border-radius:2px;
  transition:left .25s ease,right .25s ease;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{left:0;right:0;}
.main-nav a.active{color:#fff;text-shadow:0 0 12px rgba(41,231,196,.45);}
.main-nav a.active::after{left:0;right:0;}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--neon-400);color:#06121A;font-size:15px;font-weight:600;
  padding:11px 20px;border-radius:var(--r-btn);white-space:nowrap;
  transition:box-shadow .2s ease,transform .2s ease,background .2s ease;
}
.nav-cta:hover{background:#4ff0d3;color:#06121A;box-shadow:0 0 0 4px rgba(41,231,196,.18);}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:22px;height:2px;background:rgba(255,255,255,.85);border-radius:2px;transition:.25s;}
.nav-toggle.open span{background:var(--neon-400);}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-drawer{
  display:none;background:var(--nav-bg);border-top:1px solid rgba(255,255,255,.06);
  padding:12px 24px 24px;
}
.nav-drawer.open{display:block;}
.nav-drawer a{
  display:flex;align-items:center;gap:12px;color:rgba(255,255,255,.78);
  font-size:16px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-drawer a i{font-size:12px;color:var(--neon-400);font-family:var(--font-num);font-style:normal;}
.nav-drawer a.active{color:#fff;}
.nav-drawer .drawer-cta{
  margin-top:18px;justify-content:center;background:var(--neon-400);color:#06121A;
  border-radius:var(--r-btn);font-weight:600;border:0;padding:14px;
}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:26px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-300);}
.crumb a{color:var(--ink-300);}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{color:var(--line-strong);}
.crumb .current{color:var(--brand-600);font-weight:600;max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-head{padding:22px 0 8px;}
.article-badge{
  display:inline-block;background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;padding:4px 12px;border-radius:var(--r-badge);
}
.article-title{
  font-size:clamp(26px,3.4vw,40px);line-height:1.22;letter-spacing:-.01em;
  margin:14px 0 12px;max-width:960px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--ink-300);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong);display:inline-block;}
.cover-wrap{
  margin:28px 0 0;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);background:#fff;
}
.cover-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- 正文 ---------- */
.article-layout{padding:44px 0 96px;}
.article-body{
  max-width:800px;margin:0 auto;background:var(--bg-card);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:44px 48px 40px;
  font-size:17px;line-height:1.9;color:var(--ink-500);
}
.article-body p{margin:0 0 19px;}
.article-body h2{
  position:relative;font-size:clamp(21px,2.2vw,27px);line-height:1.35;
  margin:38px 0 16px;padding-left:16px;color:var(--ink-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;
  background:var(--neon-400);border-radius:2px;
}
.article-body h3{font-size:19px;margin:28px 0 12px;color:var(--ink-700);font-weight:600;}
.article-body h4{font-size:17px;margin:22px 0 10px;color:var(--ink-700);}
.article-body img{border-radius:var(--r-img);margin:22px auto;box-shadow:var(--sh-1);}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-300);text-align:center;margin-top:8px;}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--bg-soft);
  border-left:4px solid var(--neon-400);border-radius:var(--r-card);
  color:var(--ink-700);font-size:16px;
}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body ul li{position:relative;list-style:none;padding-left:16px;margin-bottom:9px;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;border-radius:50%;
  background:var(--brand-500);
}
.article-body ol{list-style:decimal;padding-left:24px;}
.article-body ol li{margin-bottom:9px;}
.article-body a{color:var(--brand-600);border-bottom:1px solid var(--brand-100);}
.article-body a:hover{border-bottom-color:var(--brand-600);}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;border-radius:var(--r-img);overflow:hidden;}
.article-body th{background:var(--brand-100);color:var(--brand-700);text-align:left;padding:12px 14px;font-weight:600;}
.article-body td{padding:12px 14px;border-top:1px solid var(--line);}
.article-body tr:nth-child(even) td{background:#FAFBFE;}
.article-body strong{color:var(--ink-700);}
.article-body code{background:var(--bg-soft);border-radius:6px;padding:2px 6px;font-size:14px;}

.empty-box{
  max-width:800px;margin:0 auto;background:var(--bg-card);
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  padding:64px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-box i{font-size:34px;color:var(--brand-500);}
.empty-box h2{font-size:22px;margin:16px 0 10px;}
.empty-box p{margin-bottom:22px;color:var(--ink-500);}

/* ---------- 通用按钮 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;
  padding:13px 24px;border-radius:var(--r-btn);border:0;
  box-shadow:0 10px 24px rgba(31,71,214,.25);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-main:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--brand-600);font-size:15px;font-weight:600;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid var(--brand-600);
  transition:background .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-2px);}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--neon-400);color:#06121A;font-size:15px;font-weight:600;
  padding:13px 24px;border-radius:var(--r-btn);border:0;
  transition:box-shadow .2s ease,background .2s ease;
}
.btn-neon:hover{background:#4ff0d3;color:#06121A;box-shadow:0 0 0 4px rgba(41,231,196,.18);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- 相关阅读 ---------- */
.related{padding:0 0 88px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);}
.section-head .eyebrow{
  display:block;font-size:13px;letter-spacing:.14em;color:var(--brand-600);
  font-family:var(--font-num);font-weight:700;margin-bottom:6px;text-transform:uppercase;
}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.post-card:hover img{transform:scale(1.04);}
.post-card .thumb{overflow:hidden;aspect-ratio:16/10;background:var(--bg-soft);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-card h3{font-size:18px;line-height:1.5;margin:10px 0 8px;}
.post-card h3 a{color:var(--ink-900);}
.post-card h3 a:hover{color:var(--brand-600);}
.post-card p{font-size:14px;color:var(--ink-500);margin-bottom:14px;}
.post-card .meta{font-size:13px;color:var(--ink-300);display:flex;align-items:center;gap:8px;margin-bottom:4px;}
.post-card .meta .badge-soft{
  background:var(--brand-100);color:var(--brand-700);font-weight:600;
  padding:2px 10px;border-radius:var(--r-badge);font-size:12px;
}
.post-card .foot{margin-top:auto;padding-top:8px;}

/* ---------- 返回入口 ---------- */
.back-row{display:flex;flex-wrap:wrap;gap:14px;padding:0 0 96px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--nav-bg);border-radius:var(--r-band);position:relative;
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.65),transparent);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.3vw,28px);margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.68);margin:0;font-size:15px;max-width:640px;}
.cta-wrap{padding:0 0 96px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--nav-bg);color:rgba(255,255,255,.72);
  position:relative;padding:64px 0 0;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.5),transparent);
}
.footer-brand{display:flex;align-items:center;}
.footer-brand .brand{display:inline-flex;align-items:center;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:16px 0 18px;max-width:320px;}
.footer-contact{display:flex;flex-direction:column;gap:10px;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.72);}
.footer-contact i{color:var(--neon-400);font-size:13px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--neon-400);}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 浮动组件 ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1040;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--neon-400);color:#06121A;font-weight:600;font-size:15px;
  padding:13px 22px;border-radius:var(--r-btn);
  box-shadow:0 12px 28px rgba(8,13,26,.28);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,box-shadow .2s ease;
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{color:#06121A;box-shadow:0 0 0 4px rgba(41,231,196,.18),0 12px 28px rgba(8,13,26,.28);}
.to-top{
  position:fixed;right:28px;bottom:92px;z-index:1040;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line-strong);
  background:#fff;color:var(--brand-600);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);cursor:pointer;opacity:0;transform:translateY(10px);
  pointer-events:none;transition:opacity .3s ease,transform .3s ease;
}
.to-top.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-cta-bar{display:none;}

@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .main-nav,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{height:60px;}
  .brand-text{font-size:17px;}
  .brand-sub{display:none;}
  .article-body{padding:32px 24px 28px;border-radius:14px;}
  .article-layout{padding:32px 0 64px;}
  .related{padding-bottom:64px;}
  .card-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 26px;border-radius:16px;}
  .back-row{padding-bottom:72px;}
  .float-cta{display:none;}
  .to-top{bottom:78px;right:16px;width:42px;height:42px;}
  .mobile-cta-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:1040;
    align-items:center;justify-content:space-between;gap:12px;
    background:rgba(8,13,26,.96);backdrop-filter:blur(10px);
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    border-top:1px solid rgba(41,231,196,.35);
  }
  .mobile-cta-bar span{color:rgba(255,255,255,.72);font-size:13px;}
  .mobile-cta-bar a{
    background:var(--neon-400);color:#06121A;font-weight:600;font-size:14px;
    padding:10px 18px;border-radius:var(--r-btn);white-space:nowrap;
  }
  .site-footer{padding-bottom:64px;}
}
@media (max-width:575px){
  .container{padding-left:18px;padding-right:18px;}
  .article-meta{font-size:12px;}
  .article-body{font-size:16px;padding:26px 18px 22px;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:28px 20px;}
  .cta-band .btn-neon,.cta-band .btn-main{width:100%;}
}

/* roulang page: category1 */
:root{
  --bg-page:#F4F6FB;
  --bg-card:#FFFFFF;
  --bg-soft:#EDF1FA;
  --ink-900:#0C1222;
  --ink-700:#2A3446;
  --ink-500:#5A6680;
  --ink-300:#8A94A6;
  --brand-700:#18389E;
  --brand-600:#1F47D6;
  --brand-500:#3568F0;
  --brand-100:#E3EAFD;
  --neon-400:#29E7C4;
  --accent-500:#FF6A3D;
  --nav-bg:#080D1A;
  --nav-line:rgba(41,231,196,.45);
  --line:#E1E7F2;
  --line-strong:#CBD5E6;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 8px 24px rgba(12,18,34,.06);
  --shadow-2:0 16px 40px rgba(12,18,34,.10);
  --shadow-3:0 20px 56px rgba(12,18,34,.14);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","SF Pro Display",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--ink-500);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4,h5{color:var(--ink-900);font-weight:700;line-height:1.25;margin:0;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(8,13,26,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,var(--nav-line),transparent);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand svg{flex:0 0 auto;}
.brand-text{
  font-family:var(--font-num);
  font-size:18px;font-weight:700;letter-spacing:.2px;color:#fff;
}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.main-nav a{
  position:relative;display:inline-block;padding:8px 2px;
  font-size:15px;color:rgba(255,255,255,.72);white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--neon-400);border-radius:2px;
  transition:left .25s ease,right .25s ease;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{left:0;right:0;}
.main-nav a.active{color:#fff;text-shadow:0 0 12px rgba(41,231,196,.45);}
.main-nav a.active::after{left:0;right:0;box-shadow:0 0 10px rgba(41,231,196,.55);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 20px;
  background:var(--neon-400);color:#06121A;
  font-size:15px;font-weight:700;border:0;border-radius:var(--radius-btn);
  transition:box-shadow .2s ease,transform .2s ease,filter .2s ease;
}
.btn-neon:hover{color:#06121A;filter:brightness(1.07);box-shadow:0 0 0 4px rgba(41,231,196,.18);}
.nav-toggle{
  display:none;width:44px;height:44px;
  background:transparent;border:1px solid rgba(255,255,255,.18);border-radius:10px;
  padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:rgba(255,255,255,.8);border-radius:2px;transition:background .2s;}
.nav-toggle:hover span{background:var(--neon-400);}
.nav-drawer{
  display:none;background:var(--nav-bg);
  border-top:1px solid rgba(255,255,255,.06);
  padding:12px 24px 20px;
}
.nav-drawer.open{display:block;}
.nav-drawer a{
  display:flex;align-items:center;gap:10px;
  padding:14px 0;color:rgba(255,255,255,.78);font-size:15px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-drawer a .idx{font-family:var(--font-num);font-size:12px;color:rgba(41,231,196,.7);}
.nav-drawer a.active{color:#fff;}
.nav-drawer .drawer-cta{margin-top:16px;width:100%;}

/* ---------- 分类头图 ---------- */
.cat-hero{
  position:relative;
  min-height:300px;
  display:flex;align-items:center;
  padding:56px 0;
  background-image:linear-gradient(90deg,rgba(244,246,251,.96) 0%,rgba(244,246,251,.88) 48%,rgba(244,246,251,.72) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-hero .inner{max-width:760px;}
.breadcrumb-bar{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-300);margin-bottom:18px;
}
.breadcrumb-bar a{color:var(--ink-300);}
.breadcrumb-bar a:hover{color:var(--brand-600);}
.breadcrumb-bar .sep{color:var(--line-strong);}
.breadcrumb-bar .current{color:var(--brand-600);font-weight:600;}
.chip{
  display:inline-block;padding:4px 12px;border-radius:6px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.3px;
}
.cat-hero h1{
  margin:16px 0 14px;
  font-size:clamp(30px,4.2vw,46px);
  letter-spacing:-.02em;
}
.cat-hero .lede{font-size:17px;color:var(--ink-500);max-width:620px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative;}
.section.soft{background:var(--bg-soft);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3vw,34px);letter-spacing:-.01em;margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--ink-500);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:13px;font-weight:700;
  letter-spacing:.12em;color:var(--brand-600);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--neon-400);border-radius:2px;}

/* ---------- 侧栏 + 交替图文 ---------- */
.sticky-side{position:sticky;top:96px;}
.side-title{font-size:22px;margin-bottom:12px;}
.side-desc{font-size:15px;color:var(--ink-500);margin-bottom:24px;}
.side-nav{border-left:2px solid var(--line);margin-bottom:28px;}
.side-nav li{margin:0;}
.side-nav a{
  display:block;position:relative;
  padding:10px 0 10px 18px;
  font-size:15px;color:var(--ink-500);
}
.side-nav a::before{
  content:"";position:absolute;left:-2px;top:6px;bottom:6px;width:3px;
  background:transparent;border-radius:3px;transition:background .2s ease;
}
.side-nav a:hover{color:var(--brand-600);}
.side-nav a.active{color:var(--brand-600);font-weight:600;}
.side-nav a.active::before{background:var(--neon-400);box-shadow:0 0 8px rgba(41,231,196,.6);}

.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
  padding:32px 0;
  border-bottom:1px solid var(--line);
}
.feature-row:first-child{padding-top:0;}
.feature-row:last-child{border-bottom:0;padding-bottom:0;}
.feature-row.reverse .feature-media{order:2;}
.feature-media{
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  background:var(--bg-card);
}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .5s ease;
}
.feature-row:hover .feature-media img{transform:scale(1.04);}
.feature-body h2{font-size:23px;margin-bottom:14px;}
.feature-body p{font-size:15.5px;color:var(--ink-500);}
.point-list{margin:18px 0 20px;display:grid;gap:10px;}
.point-list li{
  position:relative;padding-left:26px;font-size:15px;color:var(--ink-700);
}
.point-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;font-size:12px;color:var(--neon-400);
  text-shadow:0 0 8px rgba(41,231,196,.5);
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-600);
}
.text-link i{transition:transform .2s ease;font-size:12px;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.metric-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.metric-num{
  font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--ink-900);line-height:1.1;
}
.metric-num span{font-size:15px;font-weight:600;color:var(--ink-300);margin-left:4px;}
.metric-label{font-size:14px;color:var(--ink-500);margin-top:8px;}

/* ---------- 流程 ---------- */
.flow{
  display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step;
}
.flow-item{
  position:relative;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-1);
}
.flow-item::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--font-num);font-size:13px;font-weight:700;
  color:var(--brand-600);letter-spacing:.08em;
  display:block;margin-bottom:12px;
}
.flow-item::after{
  content:"";position:absolute;left:22px;right:22px;top:0;height:2px;
  background:linear-gradient(90deg,var(--neon-400),transparent);
  border-radius:2px;
}
.flow-item h3{font-size:17px;margin-bottom:10px;}
.flow-item p{font-size:14.5px;color:var(--ink-500);}

/* ---------- 场景标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:12px;}
.tag{
  display:inline-block;padding:8px 16px;border-radius:6px;
  background:var(--bg-card);border:1px solid var(--line);
  font-size:14px;color:var(--ink-700);
  transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.tag:hover{border-color:var(--brand-500);color:var(--brand-600);box-shadow:0 6px 18px rgba(31,71,214,.10);}

/* ---------- FAQ ---------- */
.faq-title-col h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px;}
.accordion-item{
  background:var(--bg-card);border:1px solid var(--line)!important;border-radius:var(--radius-card)!important;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease;
}
.accordion-item:has(.accordion-button:not(.collapsed)){box-shadow:var(--shadow-2);}
.accordion-button{
  background:var(--bg-card);color:var(--ink-900);
  font-size:17px;font-weight:600;padding:20px 52px 20px 24px;
  box-shadow:none!important;border:0;
}
.accordion-button::after{
  background-image:none;content:"+";
  font-family:var(--font-num);font-size:22px;font-weight:400;line-height:1;
  color:var(--brand-600);width:auto;height:auto;
  display:flex;align-items:center;justify-content:center;
  transform:none;transition:transform .25s ease,color .25s ease;
}
.accordion-button:not(.collapsed){color:var(--brand-700);background:var(--bg-card);}
.accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-body{padding:0 24px 22px 24px;font-size:15px;color:var(--ink-500);}
.accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--neon-400)!important;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--nav-bg);
  border-radius:20px;
  border-top:1px solid var(--nav-line);
  padding:46px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow-3);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.7);font-size:15px;margin:0;max-width:620px;}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;
  border:0;border-radius:var(--radius-btn);
  box-shadow:0 10px 24px rgba(31,71,214,.25);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(31,71,214,.32);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;
  background:transparent;color:var(--brand-600);
  border:1px solid var(--brand-600);border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-2px);}
.btn-ghost.light{color:#fff;border-color:rgba(255,255,255,.34);}
.btn-ghost.light:hover{background:rgba(255,255,255,.08);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--nav-bg);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  border-top:1px solid var(--nav-line);
  margin-top:0;
}
.site-footer h4{
  color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;
}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.64);margin:16px 0 20px;max-width:340px;}
.footer-contact{display:grid;gap:10px;font-size:14px;color:rgba(255,255,255,.7);}
.footer-contact li{display:flex;align-items:center;gap:10px;}
.footer-contact i{color:var(--neon-400);font-size:13px;}
.footer-links{display:grid;gap:12px;font-size:14px;}
.footer-links a{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--neon-400);}
.footer-bottom{
  margin-top:56px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:1040;
  display:flex;align-items:center;gap:14px;
  padding:12px 14px 12px 20px;
  background:rgba(8,13,26,.96);border:1px solid var(--nav-line);
  border-radius:999px;box-shadow:var(--shadow-3);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease;
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta span{font-size:14px;color:rgba(255,255,255,.82);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .flow{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:991.98px){
  .nav-wrap{height:60px;gap:16px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-right .btn-neon{display:none;}
  .section{padding:72px 0;}
  .cat-hero{min-height:260px;padding:44px 0;}
  .sticky-side{position:static;margin-bottom:32px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .feature-row{grid-template-columns:1fr;gap:22px;padding:26px 0;}
  .feature-row.reverse .feature-media{order:0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;
    padding:12px 18px calc(12px + env(safe-area-inset-bottom));
    justify-content:space-between;transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0);}
  .float-cta span{font-size:13px;}
  .site-footer{padding-bottom:64px;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  .section{padding:56px 0;}
  .metrics{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .cat-hero h1{font-size:28px;}
  .cat-hero .lede{font-size:15.5px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .cta-band{padding:30px 22px;}
}
@media (hover:none){
  .metric-card:hover{transform:none;}
  .feature-row:hover .feature-media img{transform:none;}
  .btn-brand:hover,.btn-ghost:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg-page:#F4F6FB; --bg-card:#FFFFFF; --bg-soft:#EDF1FA;
  --ink-900:#0C1222; --ink-700:#2A3446; --ink-500:#5A6680; --ink-300:#8A94A6;
  --brand-700:#18389E; --brand-600:#1F47D6; --brand-500:#3568F0; --brand-100:#E3EAFD;
  --neon-400:#29E7C4; --accent-500:#FF6A3D;
  --nav-bg:#080D1A; --nav-line:rgba(41,231,196,.45);
  --line:#E1E7F2; --line-strong:#CBD5E6;
  --r-card:16px; --r-img:12px; --r-btn:10px; --r-badge:6px; --r-band:20px;
  --sh-1:0 8px 24px rgba(12,18,34,.06);
  --sh-2:0 16px 40px rgba(12,18,34,.10);
  --sh-3:0 20px 56px rgba(12,18,34,.14);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-en:Inter,"SF Pro Display",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-page);color:var(--ink-500);
  font-family:var(--font-cn);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 18px}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
@media (min-width:1400px){.container{max-width:1320px}}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(8,13,26,.94);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.5),transparent);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand-text{
  font-family:var(--font-en);font-weight:700;font-size:18px;letter-spacing:.01em;
  color:#fff;
}
.brand-sub{
  font-size:12px;color:rgba(255,255,255,.6);
  padding-left:10px;border-left:1px solid rgba(255,255,255,.16);
}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav a{
  position:relative;color:rgba(255,255,255,.72);font-size:15px;
  padding:6px 0;text-decoration:none;transition:color .2s ease;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-4px;height:2px;
  background:var(--neon-400);transition:left .22s ease,right .22s ease;
  box-shadow:0 0 10px rgba(41,231,196,.6);
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{left:0;right:0}
.main-nav a.active{color:#fff;text-shadow:0 0 12px rgba(41,231,196,.45)}
.main-nav a.active::after{left:0;right:0}
.header-actions{display:flex;align-items:center;gap:14px}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 20px;border-radius:var(--r-btn);
  background:var(--neon-400);color:#06121A;font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .2s ease;cursor:pointer;
}
.btn-neon:hover{background:#4df0d3;color:#06121A;box-shadow:0 0 0 4px rgba(41,231,196,.18)}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;
  flex-direction:column;justify-content:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;width:22px;background:rgba(255,255,255,.8);border-radius:2px;transition:all .25s ease}
.nav-toggle.open span{background:var(--neon-400);box-shadow:0 0 8px rgba(41,231,196,.6)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(6,10,20,.55);z-index:1040;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.show{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);z-index:1050;
  background:var(--nav-bg);border-left:1px solid rgba(41,231,196,.22);
  transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:24px 22px calc(24px + env(safe-area-inset-bottom));
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-head .brand-text{font-size:16px}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  background:transparent;color:rgba(255,255,255,.8);font-size:18px;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;gap:2px;flex:1}
.drawer-nav a{
  display:flex;align-items:center;gap:12px;padding:14px 10px;border-radius:10px;
  color:rgba(255,255,255,.76);font-size:16px;text-decoration:none;
  border-left:2px solid transparent;transition:all .2s ease;min-height:44px;
}
.drawer-nav a em{font-family:var(--font-en);font-style:normal;font-size:12px;color:var(--neon-400);opacity:.85}
.drawer-nav a:hover,.drawer-nav a.active{background:rgba(255,255,255,.05);color:#fff;border-left-color:var(--neon-400)}
.drawer-cta{margin-top:18px;width:100%}

/* ---------- 按钮体系 ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;border-radius:var(--r-btn);
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 24px rgba(31,71,214,.25);transition:all .2s ease;
}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;border-radius:var(--r-btn);
  background:transparent;border:1px solid var(--brand-600);color:var(--brand-600);
  font-size:15px;font-weight:600;transition:all .2s ease;
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--brand-600);
}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;min-height:300px;display:flex;align-items:center;
  padding:56px 0 64px;
  background-image:linear-gradient(90deg,rgba(244,246,251,.96) 0%,rgba(244,246,251,.88) 42%,rgba(244,246,251,.70) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb-bar{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-300);margin-bottom:20px}
.breadcrumb-bar a{color:var(--ink-300)}
.breadcrumb-bar a:hover{color:var(--brand-600)}
.breadcrumb-bar .sep{color:var(--line-strong)}
.breadcrumb-bar .current{color:var(--brand-600);font-weight:600}
.cat-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;padding:6px 12px;border-radius:var(--r-badge);
  margin-bottom:16px;
}
.cat-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neon-400)}
.cat-hero h1{
  font-size:clamp(32px,4.6vw,54px);line-height:1.14;letter-spacing:-.02em;
  max-width:820px;margin-bottom:16px;
}
.hero-lead{max-width:680px;font-size:17px;color:var(--ink-500);margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section.soft{background:var(--bg-soft)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:14px}
.section-head p{font-size:16px;margin-bottom:0}
.eyebrow{
  display:inline-block;font-family:var(--font-en);font-size:13px;font-weight:700;
  letter-spacing:.14em;color:var(--brand-600);text-transform:uppercase;margin-bottom:10px;
}

/* ---------- 筛选标签条 ---------- */
.filter-bar{padding:34px 0;background:var(--bg-card);border-bottom:1px solid var(--line)}
.filter-inner{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.filter-left{flex:1 1 340px}
.filter-left h2{font-size:22px;margin-bottom:6px}
.filter-left p{font-size:14px;color:var(--ink-500);margin:0}
.filter-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:var(--r-badge);border:1px solid var(--line);
  background:var(--bg-page);color:var(--ink-700);font-size:13px;font-weight:600;
}
.tag.neon{border-color:rgba(41,231,196,.55);color:#0C1222;background:rgba(41,231,196,.12)}

/* ---------- 卡片网格 ---------- */
.card-grid{gap:24px 0}
.sky-card{
  height:100%;background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease;
}
.sky-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.sky-card .thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--bg-soft)}
.sky-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.sky-card:hover .thumb img{transform:scale(1.04)}
.chip{
  position:absolute;left:12px;top:12px;
  background:rgba(8,13,26,.78);color:var(--neon-400);
  font-size:12px;font-weight:600;padding:5px 10px;border-radius:var(--r-badge);
  border:1px solid rgba(41,231,196,.35);
}
.sky-card .body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.sky-card h3{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:10px}
.sky-card p{font-size:14.5px;color:var(--ink-500);line-height:1.75;margin-bottom:16px}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px}
.mini-label{
  font-size:12px;font-weight:600;color:var(--brand-700);background:var(--brand-100);
  padding:4px 9px;border-radius:var(--r-badge);
}

/* ---------- 适用场景 ---------- */
.scene-list{display:flex;flex-direction:column;gap:14px}
.scene-item{
  display:flex;gap:18px;align-items:flex-start;background:var(--bg-card);
  border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;
  box-shadow:var(--sh-1);transition:all .22s ease;
}
.scene-item:hover{border-color:var(--brand-500);box-shadow:var(--sh-2)}
.scene-icon{
  flex:0 0 46px;width:46px;height:46px;border-radius:12px;display:flex;
  align-items:center;justify-content:center;background:var(--brand-100);color:var(--brand-700);
  font-size:18px;
}
.scene-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.scene-item p{font-size:14.5px;margin:0;line-height:1.75}
.scene-visual{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);height:100%;
}
.scene-visual img{width:100%;height:100%;object-fit:cover;min-height:300px}

/* ---------- 执行节奏时间线 ---------- */
.timeline{position:relative;padding-left:34px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--neon-400),rgba(41,231,196,.12));
}
.tl-item{position:relative;padding:0 0 30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-33px;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--bg-page);border:2px solid var(--neon-400);
  box-shadow:0 0 0 4px rgba(41,231,196,.14);
}
.tl-step{
  font-family:var(--font-en);font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-600);display:block;margin-bottom:4px;
}
.tl-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.tl-item p{font-size:14.5px;margin:0;line-height:1.75}

/* ---------- 指标 ---------- */
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.metric-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sh-1);position:relative;overflow:hidden;
}
.metric-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--neon-400),rgba(41,231,196,0));
}
.metric-num{
  font-family:var(--font-en);font-weight:700;font-size:38px;line-height:1.1;
  color:var(--brand-600);display:flex;align-items:baseline;gap:4px;
}
.metric-num small{font-size:15px;font-weight:600;color:var(--ink-500)}
.metric-card p{font-size:14.5px;margin:10px 0 0}

/* ---------- FAQ ---------- */
.faq-intro h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.faq-intro p{font-size:15.5px}
.sky-accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg-card);
  box-shadow:var(--sh-1);margin-bottom:12px;overflow:hidden;
}
.sky-accordion .accordion-item:last-child{margin-bottom:0}
.sky-accordion .accordion-button{
  width:100%;background:var(--bg-card);border:0;color:var(--ink-900);
  font-size:17px;font-weight:600;text-align:left;padding:20px 56px 20px 22px;
  position:relative;box-shadow:none;transition:box-shadow .2s ease,color .2s ease;
}
.sky-accordion .accordion-button:not(.collapsed){
  color:var(--brand-700);
  box-shadow:inset 3px 0 0 var(--neon-400),0 8px 24px rgba(12,18,34,.06);
}
.sky-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand-500);outline-offset:-2px}
.sky-accordion .accordion-button::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  background-image:none;width:auto;height:auto;font-size:22px;font-weight:400;
  color:var(--brand-600);line-height:1;transition:transform .25s ease,color .25s ease;
}
.sky-accordion .accordion-button:not(.collapsed)::after{content:"−";color:var(--neon-400)}
.sky-accordion .accordion-body{
  padding:0 22px 22px 22px;font-size:15px;line-height:1.8;color:var(--ink-500);
  background:var(--bg-card);
}

/* ---------- 尾部 CTA ---------- */
.cta-band{
  background:var(--nav-bg);border-radius:var(--r-band);padding:44px 40px;
  position:relative;overflow:hidden;display:flex;align-items:center;
  justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-3);
}
.cta-band::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.75),transparent);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.7);font-size:15px;margin:0;max-width:620px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--nav-bg);color:rgba(255,255,255,.72);padding:72px 0 26px;
  margin-top:96px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.5),transparent);
}
.site-footer .brand{margin-bottom:16px}
.site-footer p{font-size:14.5px;color:rgba(255,255,255,.66);max-width:340px;margin-bottom:20px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;margin-bottom:10px;color:rgba(255,255,255,.66)}
.footer-contact i{color:var(--neon-400);font-size:13px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600}
.footer-links li{margin-bottom:11px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;text-decoration:none}
.footer-links a:hover{color:var(--neon-400)}
.footer-bottom{
  margin-top:46px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 浮动 CTA ---------- */
.floating-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:flex;align-items:center;gap:14px;
  background:var(--nav-bg);border:1px solid rgba(41,231,196,.35);
  border-radius:999px;padding:9px 10px 9px 20px;box-shadow:var(--sh-3);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .35s ease,transform .35s ease;
}
.floating-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.fc-text{color:rgba(255,255,255,.8);font-size:14px;white-space:nowrap}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .main-nav{gap:18px}
  .main-nav a{font-size:14px}
}
@media (max-width:991.98px){
  .main-nav,.header-cta{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:60px}
  .section{padding:72px 0}
  .cat-hero{padding:40px 0 48px;min-height:auto}
  .metrics{grid-template-columns:1fr}
  .cta-band{padding:34px 26px;border-radius:var(--r-card)}
  .scene-visual img{min-height:240px}
  .floating-cta{
    left:0;right:0;bottom:0;border-radius:0;
    justify-content:space-between;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    border-left:0;border-right:0;border-bottom:0;
  }
  .fc-text{font-size:13px;overflow:hidden;text-overflow:ellipsis}
  body{padding-bottom:76px}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  body{font-size:15.5px}
  .hero-lead{font-size:15.5px}
  .hero-actions .btn-primary,.hero-actions .btn-ghost{width:100%}
  .filter-bar{padding:26px 0}
  .filter-tags{gap:8px}
  .metric-num{font-size:32px}
  .site-footer{padding:56px 0 22px;margin-top:64px}
}
@media (max-width:575.98px){
  .cat-hero h1{font-size:30px}
  .scene-item{padding:18px}
  .sky-card .body{padding:18px}
}
@media (hover:none){
  .sky-card:hover{transform:none;box-shadow:var(--sh-1)}
  .sky-card:hover .thumb img{transform:none}
  .btn-primary:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --bg-page:#F4F6FB;
  --bg-card:#FFFFFF;
  --bg-soft:#EDF1FA;
  --ink-900:#0C1222;
  --ink-700:#2A3446;
  --ink-500:#5A6680;
  --ink-300:#8A94A6;
  --brand-700:#18389E;
  --brand-600:#1F47D6;
  --brand-500:#3568F0;
  --brand-100:#E3EAFD;
  --neon-400:#29E7C4;
  --accent-500:#FF6A3D;
  --nav-bg:#080D1A;
  --nav-line:rgba(41,231,196,.45);
  --line:#E1E7F2;
  --line-strong:#CBD5E6;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-band:20px;
  --sh-1:0 8px 24px rgba(12,18,34,.06);
  --sh-2:0 16px 40px rgba(12,18,34,.10);
  --sh-3:0 20px 56px rgba(12,18,34,.14);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--ink-500);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  padding-top:68px;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4,h5{color:var(--ink-900);font-weight:700;margin:0;}
p{margin:0 0 18px;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ============ 顶栏导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(8,13,26,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.5),transparent);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand svg{flex:0 0 auto;}
.brand-text{
  font-family:var(--font-num);
  font-size:18px;font-weight:700;letter-spacing:.01em;
  color:#fff;
}
.brand-sub{font-size:12px;color:rgba(255,255,255,.6);margin-left:8px;letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.main-nav a{
  position:relative;
  font-size:15px;
  color:rgba(255,255,255,.72);
  padding:6px 0;
  transition:color .2s ease,text-shadow .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:0;height:2px;width:0;
  background:var(--neon-400);transform:translateX(-50%);
  transition:width .22s ease;border-radius:2px;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{
  color:#fff;
  text-shadow:0 0 12px rgba(41,231,196,.45);
}
.main-nav a.active::after{width:100%;}
.nav-cta{
  margin-left:12px;
  background:var(--neon-400);
  color:#06121A !important;
  font-size:15px;font-weight:600;
  padding:10px 20px;
  border-radius:var(--r-btn);
  transition:box-shadow .2s ease,transform .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-cta:hover{background:#4ff2d4;box-shadow:0 0 0 4px rgba(41,231,196,.18);transform:translateY(-1px);}
.nav-toggle{
  display:none;background:transparent;border:0;padding:10px;margin-left:auto;cursor:pointer;
}
.nav-toggle span{display:block;width:22px;height:2px;background:rgba(255,255,255,.85);margin:4px 0;border-radius:2px;transition:background .2s ease;}
.nav-toggle.is-open span{background:var(--neon-400);}
.mobile-drawer{
  position:fixed;top:60px;left:0;right:0;bottom:0;z-index:1039;
  background:var(--nav-bg);
  padding:24px;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
  overflow-y:auto;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-drawer a{
  display:flex;align-items:center;gap:14px;
  color:rgba(255,255,255,.82);font-size:16px;
  padding:16px 4px;border-bottom:1px solid rgba(255,255,255,.08);
}
.mobile-drawer a .idx{font-family:var(--font-num);font-size:12px;color:var(--neon-400);letter-spacing:.08em;}
.mobile-drawer a.active{color:#fff;}
.mobile-drawer .drawer-cta{
  display:block;text-align:center;margin-top:24px;
  background:var(--neon-400);color:#06121A;font-weight:600;
  padding:14px;border-radius:var(--r-btn);border-bottom:0;
}

/* ============ 通用组件 ============ */
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;
  padding:13px 26px;border-radius:var(--r-btn);border:0;
  box-shadow:0 10px 24px rgba(31,71,214,.25);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-main:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--brand-600);color:var(--brand-600);
  background:transparent;font-size:15px;font-weight:600;
  padding:12px 24px;border-radius:var(--r-btn);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-2px);}
.btn-neon{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--neon-400);color:#06121A;font-size:15px;font-weight:600;
  padding:13px 26px;border-radius:var(--r-btn);border:0;
  transition:box-shadow .2s ease,background .2s ease,transform .2s ease;
}
.btn-neon:hover{background:#4ff2d4;color:#06121A;box-shadow:0 0 0 4px rgba(41,231,196,.18);transform:translateY(-2px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600);}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(4px);}
.badge-soft{
  display:inline-block;background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;padding:4px 10px;border-radius:var(--r-badge);
}
.badge-neon{
  display:inline-block;background:rgba(41,231,196,.14);color:#0F8E78;
  font-size:13px;font-weight:600;padding:4px 10px;border-radius:var(--r-badge);
}
.section{padding:96px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--ink-500);margin:0;}
.eyebrow{
  font-family:var(--font-num);font-size:12px;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--brand-600);display:block;margin-bottom:12px;
}
.divider-neon{height:1px;background:linear-gradient(90deg,transparent,rgba(41,231,196,.5),transparent);border:0;margin:0;}

/* ============ 面包屑 ============ */
.crumb{font-size:13px;color:var(--ink-300);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb a{color:var(--ink-300);}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{color:var(--line-strong);}
.crumb .current{color:var(--brand-600);font-weight:600;}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  min-height:320px;
  display:flex;align-items:center;
  background:linear-gradient(120deg,rgba(244,246,251,.94) 0%,rgba(244,246,251,.82) 46%,rgba(244,246,251,.62) 100%),
             url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(41,231,196,.18),transparent 68%);
  pointer-events:none;
}
.cat-hero .inner{position:relative;z-index:2;padding:56px 0;max-width:800px;}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.16;letter-spacing:-.02em;
  margin:18px 0 16px;
}
.cat-hero h1 .hl{color:var(--brand-600);}
.cat-hero .lead{font-size:17px;color:var(--ink-700);max-width:640px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:0;margin-top:34px;}
.hero-metrics .m{
  padding:0 26px;border-left:1px solid var(--line-strong);
}
.hero-metrics .m:first-child{padding-left:0;border-left:0;}
.hero-metrics .num{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--ink-900);line-height:1.2;}
.hero-metrics .num small{font-size:13px;font-weight:600;color:var(--ink-300);margin-left:3px;}
.hero-metrics .lbl{font-size:13px;color:var(--ink-300);}

/* ============ Bento 案例网格 ============ */
.bento{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  grid-auto-rows:206px;
  gap:20px;
}
.bento-item{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  background:var(--ink-900);
  transition:transform .25s ease,box-shadow .25s ease;
  display:block;
}
.bento-item img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.bento-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,13,26,.15) 0%,rgba(8,13,26,.62) 52%,rgba(8,13,26,.9) 100%);
}
.bento-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.bento-item:hover img{transform:scale(1.04);}
.bento-body{
  position:relative;z-index:3;height:100%;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:22px;color:#fff;
}
.bento-body .tag{
  align-self:flex-start;font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(41,231,196,.16);color:#66F5DA;border:1px solid rgba(41,231,196,.32);
  padding:3px 9px;border-radius:var(--r-badge);margin-bottom:auto;
}
.bento-body h3{color:#fff;font-size:19px;line-height:1.4;margin-top:14px;}
.bento-body .metric{
  font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--neon-400);
  margin:10px 0 6px;line-height:1.2;
}
.bento-body .metric small{font-family:var(--font-cn);font-size:12px;font-weight:500;color:rgba(255,255,255,.65);margin-left:6px;}
.bento-body p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.78);margin:0;}
.bi-large{grid-column:span 4;grid-row:span 2;}
.bi-small{grid-column:span 2;grid-row:span 1;}
.bi-narrow{grid-column:span 2;grid-row:span 1;}
.bi-large .bento-body h3{font-size:24px;}
.bi-large .bento-body .metric{font-size:40px;}
.bi-large .bento-body p{max-width:420px;font-size:15px;}
.bi-narrow .bento-body h3{font-size:17px;}
.bi-narrow .bento-body .metric{font-size:22px;}

/* ============ 数据条 ============ */
.stat-band{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-band);
  box-shadow:var(--sh-1);padding:38px 30px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat-band .s{text-align:center;padding:6px 12px;border-right:1px solid var(--line);}
.stat-band .s:last-child{border-right:0;}
.stat-band .s .v{font-family:var(--font-num);font-size:38px;font-weight:700;color:var(--brand-600);line-height:1.1;}
.stat-band .s .v small{font-size:15px;color:var(--ink-300);font-weight:600;margin-left:4px;}
.stat-band .s .t{font-size:14px;color:var(--ink-500);margin-top:8px;}

/* ============ 时间线 ============ */
.tl-layout{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.tl-side{position:sticky;top:100px;}
.tl-side h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:14px;}
.tl-side p{color:var(--ink-500);}
.tl-side .side-card{
  margin-top:24px;background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;
}
.tl-side .side-card h4{font-size:16px;margin-bottom:10px;}
.tl-side .side-card li{
  font-size:14px;color:var(--ink-500);padding:8px 0;border-bottom:1px dashed var(--line);
  display:flex;gap:10px;align-items:flex-start;
}
.tl-side .side-card li:last-child{border-bottom:0;}
.tl-side .side-card li i{color:var(--neon-400);font-size:13px;margin-top:6px;}
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:6px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,rgba(41,231,196,.75),rgba(31,71,214,.18));
}
.tl-item{position:relative;padding:0 0 26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:24px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:2px solid var(--neon-400);
  box-shadow:0 0 0 4px rgba(41,231,196,.14);
}
.tl-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px 24px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.tl-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.tl-card .phase{
  font-family:var(--font-num);font-size:12px;font-weight:600;letter-spacing:.1em;
  color:var(--brand-600);text-transform:uppercase;
}
.tl-card h3{font-size:19px;margin:8px 0 10px;}
.tl-card p{font-size:15px;margin-bottom:12px;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tl-tags span{
  font-size:13px;color:var(--ink-500);background:var(--bg-soft);
  border-radius:var(--r-badge);padding:4px 10px;
}

/* ============ 训练亮点（三块不等宽） ============ */
.hl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.hl-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;transition:transform .25s ease,box-shadow .25s ease;
}
.hl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.hl-card .ico{
  width:44px;height:44px;border-radius:12px;background:var(--brand-100);
  display:flex;align-items:center;justify-content:center;color:var(--brand-600);
  font-size:18px;margin-bottom:16px;
}
.hl-card h3{font-size:18px;margin-bottom:10px;}
.hl-card p{font-size:15px;margin:0;}
.hl-wide{grid-column:span 2;background:var(--bg-card);}
.hl-wide .ico{background:rgba(41,231,196,.16);color:#0F8E78;}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-layout .side h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:14px;}
.accordion-item{
  background:var(--bg-card);border:1px solid var(--line) !important;
  border-radius:var(--r-card) !important;box-shadow:var(--sh-1);
  margin-bottom:12px;overflow:hidden;position:relative;
}
.accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--neon-400);opacity:0;transition:opacity .2s ease;
}
.accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1;}
.accordion-item:has(.accordion-button:not(.collapsed)){box-shadow:var(--sh-2);}
.accordion-button{
  background:var(--bg-card) !important;color:var(--ink-900) !important;
  font-size:17px;font-weight:600;padding:20px 54px 20px 24px;
  box-shadow:none !important;border:0 !important;border-radius:0 !important;
}
.accordion-button:not(.collapsed){color:var(--brand-700) !important;}
.accordion-button::after{
  background-image:none !important;
  content:"+";font-family:var(--font-num);font-size:22px;font-weight:400;
  color:var(--brand-600);width:auto;height:auto;transform:none;
  position:absolute;right:24px;top:50%;margin-top:-16px;line-height:1;
  transition:transform .2s ease;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);}
.accordion-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-500);}

/* ============ 表单 / CTA ============ */
.cta-band{
  background:var(--nav-bg);border-radius:var(--r-band);
  position:relative;overflow:hidden;
  padding:44px 44px;display:flex;align-items:center;gap:32px;flex-wrap:wrap;
  justify-content:space-between;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.75),transparent);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.68);margin:0;font-size:15px;max-width:560px;}
.form-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:32px;
}
.form-card h3{font-size:20px;margin-bottom:8px;}
.form-card .hint{font-size:14px;color:var(--ink-300);margin-bottom:22px;}
.form-label{font-size:14px;color:var(--ink-700);font-weight:600;margin-bottom:8px;}
.form-control,.form-select{
  background:#fff;border:1px solid var(--line-strong);border-radius:var(--r-btn);
  padding:12px 14px;font-size:15px;color:var(--ink-900);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control:focus,.form-select:focus{
  border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(53,104,240,.16);outline:none;
}
.form-control::placeholder{color:var(--ink-300);}
.form-note{font-size:13px;color:var(--ink-300);margin-top:14px;margin-bottom:0;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--nav-bg);color:rgba(255,255,255,.72);
  padding:64px 0 0;margin-top:12px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.6),transparent);
}
.site-footer .brand-text{color:#fff;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;}
.footer-brand p{font-size:14px;line-height:1.8;margin:18px 0 20px;color:rgba(255,255,255,.64);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;padding:5px 0;color:rgba(255,255,255,.7);}
.footer-contact i{color:var(--neon-400);font-size:13px;margin-top:6px;}
.footer-links li{padding:6px 0;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--neon-400);}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1035;
  display:flex;align-items:center;gap:14px;
  background:rgba(8,13,26,.96);border:1px solid rgba(41,231,196,.35);
  border-radius:999px;padding:10px 10px 10px 22px;
  box-shadow:var(--sh-3);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta .ft{font-size:14px;color:rgba(255,255,255,.78);white-space:nowrap;}
.float-cta .btn-neon{padding:10px 20px;font-size:14px;}
.back-top{
  position:fixed;right:24px;bottom:104px;z-index:1034;
  width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--line);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);opacity:0;pointer-events:none;
  transition:opacity .3s ease,transform .2s ease;
}
.back-top.is-visible{opacity:1;pointer-events:auto;}
.back-top:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .main-nav{gap:18px;}
  .main-nav a{font-size:14px;}
  .nav-wrap{gap:18px;}
}
@media (max-width:992px){
  body{padding-top:60px;}
  .nav-wrap{height:60px;}
  .main-nav,.nav-cta{display:none;}
  .nav-toggle{display:block;}
  .section{padding:72px 0;}
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:220px;}
  .bi-large{grid-column:span 2;grid-row:span 2;}
  .bi-small,.bi-narrow{grid-column:span 1;}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:20px;padding:28px 20px;}
  .stat-band .s:nth-child(2){border-right:0;}
  .tl-layout{grid-template-columns:1fr;gap:32px;}
  .tl-side{position:static;}
  .hl-grid{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;
    padding:12px 16px;justify-content:space-between;
    border-left:0;border-right:0;border-bottom:0;
    padding-bottom:calc(12px + env(safe-area-inset-bottom,0px));
  }
  .float-cta .ft{font-size:13px;white-space:normal;}
  .back-top{display:none;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .cat-hero{min-height:260px;}
  .cat-hero .inner{padding:44px 0;}
  .hero-metrics{gap:18px 0;}
  .hero-metrics .m{padding:0 18px;}
  .bento{grid-template-columns:1fr;grid-auto-rows:auto;}
  .bi-large,.bi-small,.bi-narrow{grid-column:span 1;grid-row:auto;min-height:230px;}
  .bi-large{min-height:320px;}
  .cta-band{padding:32px 24px;}
  .form-card{padding:24px;}
  .site-footer{padding-top:48px;}
}
@media (max-width:520px){
  .container{padding-left:18px;padding-right:18px;}
  .hl-grid{grid-template-columns:1fr;}
  .hl-wide{grid-column:span 1;}
  .stat-band{grid-template-columns:1fr;}
  .stat-band .s{border-right:0;border-bottom:1px solid var(--line);padding-bottom:16px;}
  .stat-band .s:last-child{border-bottom:0;padding-bottom:0;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;justify-content:center;}
  .hero-metrics{flex-direction:column;gap:14px;}
  .hero-metrics .m{padding-left:0;border-left:0;}
}

/* roulang page: category4 */
:root{
  --bg-page:#F4F6FB;
  --bg-card:#FFFFFF;
  --bg-soft:#EDF1FA;
  --ink-900:#0C1222;
  --ink-700:#2A3446;
  --ink-500:#5A6680;
  --ink-300:#8A94A6;
  --brand-700:#18389E;
  --brand-600:#1F47D6;
  --brand-500:#3568F0;
  --brand-100:#E3EAFD;
  --neon-400:#29E7C4;
  --accent-500:#FF6A3D;
  --nav-bg:#080D1A;
  --nav-line:rgba(41,231,196,.45);
  --line:#E1E7F2;
  --line-strong:#CBD5E6;
  --sh-1:0 8px 24px rgba(12,18,34,.06);
  --sh-2:0 16px 40px rgba(12,18,34,.10);
  --sh-3:0 20px 56px rgba(12,18,34,.14);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-en:Inter,"SF Pro Display",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--ink-500);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
p{margin:0 0 18px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(8,13,26,.94);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.5),transparent);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;}
.brand:hover{color:#fff;}
.brand-text{font-family:var(--font-en);font-size:18px;font-weight:700;color:#fff;letter-spacing:-.01em;}
.brand-sub{font-size:12px;color:rgba(255,255,255,.6);padding-left:10px;border-left:1px solid rgba(255,255,255,.14);}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav a{
  position:relative;display:inline-block;padding:10px 12px;
  font-size:15px;color:rgba(255,255,255,.72);border-radius:8px;
  transition:color .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:4px;height:2px;
  background:var(--neon-400);border-radius:2px;transition:left .25s ease,right .25s ease;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{left:12px;right:12px;}
.main-nav a.active{color:#fff;text-shadow:0 0 12px rgba(41,231,196,.45);}
.main-nav a.active::after{left:12px;right:12px;box-shadow:0 0 10px rgba(41,231,196,.6);}
.header-right{display:flex;align-items:center;gap:12px;}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border:0;border-radius:var(--r-btn);
  background:var(--neon-400);color:#06121A;font-size:15px;font-weight:600;
  transition:background .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-neon:hover{background:#4cf0d2;color:#06121A;box-shadow:0 0 0 4px rgba(41,231,196,.18);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;border:1px solid rgba(255,255,255,.18);
  border-radius:10px;background:transparent;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;width:100%;background:rgba(255,255,255,.85);border-radius:2px;transition:background .2s ease;}
.nav-toggle.is-open span{background:var(--neon-400);}
.mobile-drawer{
  position:fixed;left:0;right:0;top:60px;bottom:0;z-index:1029;
  background:var(--nav-bg);padding:24px 24px 32px;
  display:flex;flex-direction:column;justify-content:space-between;
  transform:translateY(-10px);opacity:0;pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
  overflow-y:auto;
}
.mobile-drawer.open{opacity:1;transform:none;pointer-events:auto;}
.mobile-drawer nav{counter-reset:navi;display:flex;flex-direction:column;}
.mobile-drawer nav a{
  counter-increment:navi;
  display:flex;align-items:center;min-height:52px;
  color:rgba(255,255,255,.8);font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.mobile-drawer nav a::before{
  content:counter(navi,decimal-leading-zero);
  font-family:var(--font-en);font-size:13px;color:var(--neon-400);
  margin-right:14px;
}
.mobile-drawer nav a.active{color:#fff;}
.mobile-drawer .drawer-cta{margin-top:24px;width:100%;}

/* ---------- 面包屑 ---------- */
.crumb-wrap{background:var(--bg-card);border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-300);padding:14px 0;}
.crumb a{color:var(--ink-300);}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{color:var(--line-strong);}
.crumb .cur{color:var(--brand-600);font-weight:600;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:300px;display:flex;align-items:center;
  background:#0A1020 url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(244,246,251,.97) 0%,rgba(244,246,251,.86) 52%,rgba(244,246,251,.55) 100%);
}
.cat-hero .container{position:relative;z-index:1;padding-top:56px;padding-bottom:56px;}
.cat-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:6px;background:var(--brand-100);
  color:var(--brand-700);font-size:13px;font-weight:600;margin-bottom:18px;
}
.cat-badge i{color:var(--neon-400);}
.cat-hero h1{
  font-size:clamp(30px,4vw,46px);line-height:1.16;letter-spacing:-.02em;
  max-width:760px;margin-bottom:16px;
}
.cat-lead{max-width:620px;font-size:17px;color:var(--ink-500);margin:0;}
.cat-hero-line{
  width:88px;height:3px;margin-top:26px;border-radius:3px;
  background:linear-gradient(90deg,var(--neon-400),rgba(41,231,196,0));
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section.tight{padding-top:64px;}
.section-title{font-size:clamp(24px,2.6vw,34px);letter-spacing:-.02em;margin-bottom:14px;}
.section-sub{max-width:720px;font-size:16px;color:var(--ink-500);margin:0;}
.section-head{margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-en);font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-600);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--neon-400);border-radius:2px;}

/* ---------- 保障条 ---------- */
.assure-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--sh-1);overflow:hidden;
  margin-top:-56px;position:relative;z-index:2;
}
.assure-item{padding:28px 24px;border-right:1px solid var(--line);}
.assure-item:last-child{border-right:0;}
.assure-item i{font-size:20px;color:var(--brand-600);margin-bottom:12px;display:block;}
.assure-item h3{font-size:17px;margin-bottom:6px;}
.assure-item p{font-size:14px;color:var(--ink-500);margin:0;line-height:1.7;}

/* ---------- 会员卡 + FAQ ---------- */
.intro-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:32px 28px;position:relative;overflow:hidden;
  position:sticky;top:96px;
}
.intro-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--brand-600),var(--neon-400));
}
.intro-card h2{font-size:24px;margin-bottom:12px;}
.intro-card > p{font-size:15px;margin-bottom:24px;}
.metric-list{border-top:1px solid var(--line);}
.metric{
  display:flex;align-items:baseline;gap:12px;
  padding:16px 0;border-bottom:1px solid var(--line);
}
.metric:last-child{border-bottom:0;}
.metric .num{font-family:var(--font-en);font-size:32px;font-weight:700;color:var(--ink-900);line-height:1;}
.metric .unit{font-size:13px;color:var(--ink-300);}
.metric .desc{font-size:14px;color:var(--ink-500);margin-left:auto;text-align:right;}
.intro-card .btn-primary-x{margin-top:22px;width:100%;}

.btn-primary-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border:0;border-radius:var(--r-btn);
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 24px rgba(31,71,214,.25);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary-x:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border:1px solid var(--brand-600);
  border-radius:var(--r-btn);background:transparent;color:var(--brand-600);
  font-size:15px;font-weight:600;transition:background .2s ease,color .2s ease;
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- 手风琴 ---------- */
.faq-accordion .accordion-item{
  position:relative;background:var(--bg-card);
  border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease;
}
.faq-accordion .accordion-item.is-open{box-shadow:var(--sh-2);}
.faq-accordion .accordion-item.is-open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--neon-400);
}
.faq-accordion .accordion-header{margin:0;}
.faq-accordion .accordion-button{
  width:100%;padding:20px 56px 20px 24px;
  background:var(--bg-card);color:var(--ink-900);
  font-size:17px;font-weight:600;line-height:1.5;text-align:left;
  border:0;box-shadow:none !important;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand-700);background:var(--bg-card);
  box-shadow:inset 0 -1px 0 var(--line) !important;
}
.faq-accordion .accordion-button::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;background-image:none;
  font-family:var(--font-en);font-size:22px;font-weight:400;color:var(--brand-600);
  transition:color .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"−";color:var(--neon-400);}
.faq-accordion .accordion-body{
  padding:4px 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-500);
  background:var(--bg-card);
}

/* ---------- 图文权益区 ---------- */
.feature-media{
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  aspect-ratio:16/10;background:var(--bg-soft);
}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-copy h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;}
.feature-copy p{font-size:16px;}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px;}
.mini-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:14px;
  padding:20px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.mini-card i{color:var(--neon-400);font-size:18px;margin-bottom:10px;display:block;}
.mini-card h3{font-size:17px;margin-bottom:6px;}
.mini-card p{font-size:14px;margin:0;line-height:1.7;}

/* ---------- 对比表 ---------- */
.compare-wrap{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  overflow:hidden;overflow-x:auto;
}
.compare-table{width:100%;min-width:680px;border-collapse:collapse;font-size:15px;}
.compare-table thead th{
  background:var(--brand-100);color:var(--brand-700);
  font-size:15px;font-weight:600;text-align:left;
  padding:18px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.compare-table tbody td{
  padding:16px 22px;color:var(--ink-500);
  border-bottom:1px solid var(--line);
}
.compare-table tbody tr:nth-child(even){background:#FAFBFE;}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody td:first-child{color:var(--ink-700);font-weight:600;}
.compare-table .dot{color:var(--neon-400);margin-right:6px;}
.compare-note{font-size:13px;color:var(--ink-300);margin:16px 0 0;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--nav-bg);border-radius:20px;
  padding:44px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-3);
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.65),transparent);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.68);font-size:15px;margin:0;max-width:560px;}
.cta-band .cta-actions{display:flex;gap:12px;flex-shrink:0;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--nav-bg);color:rgba(255,255,255,.72);
  padding:72px 0 0;margin-top:96px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(41,231,196,.5),transparent);
}
.site-footer .brand{margin-bottom:16px;}
.site-footer .brand-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin-bottom:20px;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.66);margin-bottom:10px;}
.footer-contact i{color:var(--neon-400);font-size:13px;width:16px;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--neon-400);}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:14px;
  padding:10px 10px 10px 20px;border-radius:999px;
  background:#0B1224;border:1px solid rgba(41,231,196,.35);
  box-shadow:0 20px 56px rgba(12,18,34,.32);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .28s ease,transform .28s ease;
}
.float-cta.is-visible{opacity:1;transform:none;pointer-events:auto;}
.float-cta__hint{font-size:14px;color:rgba(255,255,255,.78);white-space:nowrap;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .section{padding:80px 0;}
  .intro-card{position:static;}
}
@media (max-width:991.98px){
  .header-inner{height:60px;}
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  .brand-sub{display:none;}
  .section{padding:72px 0;}
  .assure-strip{grid-template-columns:1fr 1fr;margin-top:0;}
  .assure-item:nth-child(2){border-right:0;}
  .assure-item:nth-child(1),.assure-item:nth-child(2){border-bottom:1px solid var(--line);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .cat-hero::before{background:linear-gradient(90deg,rgba(244,246,251,.97),rgba(244,246,251,.88));}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    justify-content:space-between;border-left:0;border-right:0;border-bottom:0;
  }
  .site-footer{padding-top:56px;margin-top:72px;padding-bottom:76px;}
}
@media (max-width:767.98px){
  .section{padding:56px 0;}
  .assure-strip{grid-template-columns:1fr;}
  .assure-item{border-right:0;border-bottom:1px solid var(--line);}
  .assure-item:last-child{border-bottom:0;}
  .mini-grid{grid-template-columns:1fr;}
  .compare-table{font-size:14px;}
  .compare-table thead th,.compare-table tbody td{padding:14px 16px;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .cta-band .cta-actions{width:100%;flex-direction:column;}
  .cta-band .cta-actions .btn-neon,.cta-band .cta-actions .btn-ghost{width:100%;}
  .intro-card{padding:26px 20px;}
  .float-cta__hint{font-size:13px;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  .cat-hero .container{padding-top:40px;padding-bottom:40px;}
  .crumb{padding:12px 0;}
  .metric{flex-wrap:wrap;}
  .metric .desc{margin-left:0;text-align:left;width:100%;}
  .float-cta{padding:8px 12px calc(8px + env(safe-area-inset-bottom));}
  .float-cta__hint{max-width:52%;white-space:normal;line-height:1.4;}
}