/* roulang page: index */
:root{
  --c-primary:#A8E922;
  --c-primary-hover:#93D400;
  --c-primary-press:#7CBF00;
  --c-secondary:#5B4BFF;
  --c-accent:#FF8A3D;
  --c-ink:#0E1418;
  --c-ink-2:#17222A;
  --c-ink-text:#E8EDE6;
  --c-ink-muted:#A7B4AE;
  --c-bg:#F6F7F3;
  --c-surface:#FFFFFF;
  --c-line:#E4E8DE;
  --c-text:#131C22;
  --c-muted:#5C6B70;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(14,20,24,.06);
  --sh-2:0 12px 32px -12px rgba(14,20,24,.14);
  --sh-3:0 16px 40px -14px rgba(14,20,24,.28);
  --bs-primary:#A8E922;
  --bs-link-color:#131C22;
  --bs-link-hover-color:#7CBF00;
  --bs-body-bg:#F6F7F3;
  --bs-body-color:#131C22;
  --bs-border-color:#E4E8DE;
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-text);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-press);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-text);}
h1{font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.01em;}
h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
h3{font-size:20px;font-weight:600;line-height:1.4;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid rgba(168,233,34,.4);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;width:100%;margin:0 auto;padding:0 20px;}
section{scroll-margin-top:72px;}
.sec{padding:96px 0;}
.sec-ink{padding:112px 0;background:var(--c-ink);color:var(--c-ink-text);}
.sec-line{border-top:1px solid var(--c-line);padding-top:64px;}
.sec-head{margin-bottom:44px;max-width:760px;}
.sec-head h2{position:relative;padding-left:28px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:22px;border-radius:4px;background:var(--c-primary);
}
.sec-head p{margin-top:14px;color:var(--c-muted);font-size:16px;}
.sec-ink .sec-head h2{color:#fff;}
.sec-ink .sec-head p{color:var(--c-ink-muted);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--c-primary);border:1px solid rgba(168,233,34,.45);
  background:rgba(168,233,34,.08);
  padding:5px 14px;border-radius:999px;line-height:1.6;
}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;background:rgba(246,247,243,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .18s ease,box-shadow .18s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.01em;color:var(--c-ink);flex:0 0 auto;}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;color:var(--c-ink);line-height:1;
  box-shadow:0 6px 16px -8px rgba(124,191,0,.9);
}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.main-nav a{
  font-size:14px;font-weight:500;color:var(--c-muted);padding:6px 0;position:relative;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav a:hover{color:var(--c-ink);}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-ink);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:200px;height:40px;padding:0 12px;
  background:rgba(14,20,24,.04);border:1px solid transparent;border-radius:var(--r-input);
  transition:width .2s ease,border-color .2s ease,background .2s ease;
}
.cmd-search i{color:var(--c-muted);font-size:13px;}
.cmd-search input{
  border:0;background:transparent;outline:none;font-size:14px;color:var(--c-text);width:100%;
}
.cmd-search input::placeholder{color:var(--c-muted);}
.cmd-search:focus-within{width:280px;background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(168,233,34,.22);}
.cmd-kbd{
  font-size:11px;color:var(--c-muted);border:1px solid var(--c-line);border-radius:999px;
  padding:1px 7px;background:#fff;white-space:nowrap;
}
.quick-link{font-size:14px;color:var(--c-muted);white-space:nowrap;}
.quick-link:hover{color:var(--c-ink);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);font-size:15px;font-weight:600;line-height:1;
  padding:0 20px;height:44px;border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:var(--c-ink);box-shadow:0 8px 20px -12px rgba(124,191,0,.95);}
.btn-primary:hover{background:var(--c-primary-hover);color:var(--c-ink);transform:translateY(-1px);}
.btn-primary:active{background:var(--c-primary-press);transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{border-color:var(--c-ink);color:var(--c-ink);background:rgba(14,20,24,.03);}
.btn-ghost-light{background:transparent;color:var(--c-ink-text);border-color:rgba(232,237,230,.28);}
.btn-ghost-light:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-lg{height:50px;padding:0 26px;font-size:16px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);font-size:16px;align-items:center;justify-content:center;
}
.mobile-drawer{background:var(--c-ink);color:var(--c-ink-text);width:300px!important;border:0;}
.mobile-drawer .offcanvas-header{border-bottom:1px solid rgba(168,233,34,.3);}
.mobile-drawer .offcanvas-title{color:#fff;font-weight:800;font-size:17px;}
.mobile-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.8;}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;color:var(--c-ink-muted);font-size:15px;
  border-bottom:1px solid rgba(232,237,230,.12);
}
.mobile-drawer a.drawer-link:hover,.mobile-drawer a.drawer-link.active{color:var(--c-primary);}
/* ---------- hero ---------- */
.hero{
  position:relative;background:var(--c-ink);color:var(--c-ink-text);overflow:hidden;
  padding:88px 0 72px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(168,233,34,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(168,233,34,.07) 1px,transparent 1px);
  background-size:64px 64px;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--c-primary),rgba(168,233,34,0));
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero h1{color:#fff;margin:20px 0 18px;}
.hero-sub{font-size:18px;line-height:1.7;color:var(--c-ink-muted);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:0;margin-top:38px;}
.hero-metrics div{padding:0 22px;border-left:1px solid rgba(232,237,230,.18);}
.hero-metrics div:first-child{padding-left:0;border-left:0;}
.hero-metrics b{
  display:block;font-family:Inter,Manrope,system-ui,sans-serif;font-weight:800;
  font-size:26px;color:var(--c-primary);line-height:1.2;
}
.hero-metrics span{font-size:13px;color:var(--c-ink-muted);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;border-radius:16px;border:1px solid rgba(232,237,230,.22);
  box-shadow:var(--sh-3);
}
.hero-badge{
  position:absolute;top:-14px;right:18px;display:flex;align-items:center;gap:7px;
  background:var(--c-primary);color:var(--c-ink);font-size:13px;font-weight:700;
  padding:6px 14px;border-radius:999px;box-shadow:0 8px 20px -10px rgba(124,191,0,.95);
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--c-ink);opacity:.75;}
/* ---------- usp bento ---------- */
.bento{display:grid;grid-template-columns:5fr 7fr;gap:24px;}
.bento-main{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.bento-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(168,233,34,.5);}
.bento-main img{border-radius:16px;border:1px solid var(--c-line);margin-bottom:22px;aspect-ratio:16/9;object-fit:cover;}
.bento-main h3{font-size:21px;margin-bottom:10px;}
.bento-main p{color:var(--c-muted);font-size:15px;}
.bento-side{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.bento-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.bento-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(168,233,34,.5);}
.bento-num{
  font-family:Inter,Manrope,system-ui,sans-serif;font-weight:800;font-size:14px;
  color:var(--c-ink);background:var(--c-primary);border-radius:999px;
  display:inline-flex;padding:2px 10px;margin-bottom:14px;
}
.bento-card h3{font-size:17px;margin-bottom:8px;}
.bento-card p{font-size:14px;color:var(--c-muted);line-height:1.75;margin:0;}
/* ---------- demo ---------- */
.demo-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:64px;}
.demo-row:last-child{margin-bottom:0;}
.demo-row.reverse .demo-media{order:2;}
.demo-media img{
  border-radius:16px;border:1px solid var(--c-line);box-shadow:var(--sh-1);
  transition:transform .2s ease;aspect-ratio:16/10;object-fit:cover;
}
.demo-media img:hover{transform:scale(1.02);}
.demo-copy h3{font-size:24px;font-weight:700;margin-bottom:14px;}
.demo-copy p{color:var(--c-muted);}
.demo-list{list-style:none;padding:0;margin:20px 0 0;}
.demo-list li{display:flex;gap:10px;align-items:flex-start;padding:7px 0;font-size:15px;}
.demo-list i{color:var(--c-primary-press);margin-top:4px;}
/* ---------- proof ---------- */
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-bottom:56px;}
.proof-stats > div{padding:0 26px;border-left:1px solid rgba(232,237,230,.16);}
.proof-stats > div:first-child{padding-left:0;border-left:0;}
.proof-stats b{
  display:block;font-family:Inter,Manrope,system-ui,sans-serif;font-weight:800;
  font-size:34px;color:var(--c-primary);line-height:1.15;
}
.proof-stats span{font-size:13px;color:var(--c-ink-muted);}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.quote-card{
  background:rgba(255,255,255,.04);border:1px solid rgba(232,237,230,.14);
  border-radius:var(--r-md);padding:22px;
}
.quote-card p{font-size:15px;color:var(--c-ink-text);line-height:1.8;}
.quote-meta{display:flex;align-items:center;gap:12px;margin-top:18px;}
.avatar{
  width:38px;height:38px;border-radius:50%;background:rgba(168,233,34,.16);
  border:1px solid rgba(168,233,34,.4);display:flex;align-items:center;justify-content:center;
  color:var(--c-primary);font-weight:700;font-size:14px;flex:0 0 auto;
}
.quote-meta strong{display:block;font-size:14px;color:#fff;font-weight:600;line-height:1.5;}
.quote-meta em{font-style:normal;font-size:12px;color:var(--c-ink-muted);}
.partners{display:flex;flex-wrap:wrap;gap:16px;margin-top:48px;opacity:.75;}
.partner-chip{
  padding:10px 20px;border:1px solid rgba(232,237,230,.18);border-radius:var(--r-sm);
  font-size:13px;color:var(--c-ink-muted);transition:opacity .18s ease,color .18s ease,border-color .18s ease;
}
.partner-chip:hover{opacity:1;color:var(--c-primary);border-color:rgba(168,233,34,.5);}
/* ---------- pricing ---------- */
.price-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start;}
.price-bar{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.price-bar:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.price-bar.featured{
  background:var(--c-ink);border-color:rgba(168,233,34,.55);color:var(--c-ink-text);
  box-shadow:var(--sh-3);padding-top:38px;padding-bottom:38px;
}
.price-tag{
  position:absolute;top:-13px;left:26px;background:var(--c-primary);color:var(--c-ink);
  font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;letter-spacing:.04em;
}
.price-bar h3{font-size:18px;margin-bottom:6px;}
.price-bar.featured h3{color:#fff;}
.price-desc{font-size:13px;color:var(--c-muted);}
.price-bar.featured .price-desc{color:var(--c-ink-muted);}
.price-num{
  font-family:Inter,Manrope,system-ui,sans-serif;font-weight:800;font-size:38px;
  line-height:1.1;margin:18px 0 4px;color:var(--c-ink);
}
.price-bar.featured .price-num{color:var(--c-primary);}
.price-num small{font-size:14px;font-weight:600;color:var(--c-muted);margin-left:4px;}
.price-bar.featured .price-num small{color:var(--c-ink-muted);}
.price-list{list-style:none;padding:0;margin:20px 0 24px;border-top:1px solid var(--c-line);}
.price-bar.featured .price-list{border-top-color:rgba(232,237,230,.16);}
.price-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;padding:9px 0;
  border-bottom:1px solid var(--c-line);color:var(--c-muted);
}
.price-bar.featured .price-list li{color:var(--c-ink-muted);border-bottom-color:rgba(232,237,230,.12);}
.price-list i{color:var(--c-primary-press);margin-top:4px;font-size:12px;}
.price-bar .btn{width:100%;}
.price-bar.featured .btn-ghost-light{width:100%;}
/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line);}
.faq-acc .accordion-button{
  background:transparent;box-shadow:none;padding:22px 44px 22px 18px;
  font-size:17px;font-weight:600;color:var(--c-text);border-radius:0;position:relative;
}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:0;border-radius:4px;background:var(--c-primary);transition:height .2s ease;
}
.faq-acc .accordion-button:not(.collapsed)::before{height:26px;}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .accordion-button span.plus{
  position:absolute;right:12px;top:50%;transform:translateY(-50%);
  width:24px;height:24px;border-radius:50%;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--c-muted);
  transition:all .18s ease;line-height:1;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-ink);background:transparent;}
.faq-acc .accordion-button:not(.collapsed) span.plus{background:var(--c-primary);border-color:var(--c-primary);color:var(--c-ink);}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 4px rgba(168,233,34,.22);}
.faq-acc .accordion-body{padding:0 44px 24px 18px;font-size:15px;line-height:1.85;color:var(--c-muted);}
/* ---------- news ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(168,233,34,.55);color:var(--c-text);}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:#EEF1E9;}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.badge-cat{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--c-ink);
  border:1px solid rgba(168,233,34,.7);background:rgba(168,233,34,.14);
  padding:3px 11px;border-radius:999px;margin-bottom:12px;
}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--c-primary-press);}
.news-excerpt{
  font-size:14px;color:var(--c-muted);line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted);
}
.news-foot .arrow{color:var(--c-primary-press);transition:transform .18s ease;}
.news-card:hover .news-foot .arrow{transform:translateX(4px);}
.news-empty{
  grid-column:1/-1;text-align:center;padding:56px 24px;border:1px dashed var(--c-line);
  border-radius:var(--r-lg);background:var(--c-surface);
}
.news-empty i{font-size:30px;color:var(--c-primary-press);margin-bottom:14px;display:block;}
.news-empty p{color:var(--c-muted);margin-bottom:18px;}
.news-more{font-size:14px;font-weight:600;color:var(--c-ink);border-bottom:2px solid var(--c-primary);padding-bottom:2px;}
.news-more:hover{color:var(--c-primary-press);}
/* ---------- cta ---------- */
.cta-band{
  background:var(--c-ink);border-radius:var(--r-lg);padding:56px;color:var(--c-ink-text);
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(168,233,34,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(168,233,34,.07) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:56px;top:44px;width:12px;height:12px;border-radius:50%;
  background:var(--c-primary);box-shadow:0 0 0 6px rgba(168,233,34,.14);
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:var(--c-ink-muted);max-width:520px;font-size:15px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:var(--c-ink-muted);padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--c-ink-muted);max-width:300px;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  width:36px;height:36px;border-radius:var(--r-sm);border:1px solid rgba(232,237,230,.16);
  display:flex;align-items:center;justify-content:center;color:var(--c-ink-muted);font-size:14px;
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);}
.footer-col h4{
  font-size:13px;font-weight:700;letter-spacing:.08em;color:#fff;
  text-transform:uppercase;margin-bottom:18px;
}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:var(--c-ink-muted);}
.footer-col a:hover{color:var(--c-primary);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(232,237,230,.14);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--c-ink-muted);
}
.footer-bottom a{color:var(--c-ink-muted);font-size:13px;}
.footer-bottom a:hover{color:var(--c-primary);}
/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1030;
  display:inline-flex;align-items:center;gap:9px;
  background:var(--c-ink);color:#fff;font-size:14px;font-weight:600;
  padding:12px 20px;border-radius:999px;box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{color:#fff;background:var(--c-ink-2);}
.float-cta .dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);}
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1035;
  background:var(--c-ink);padding:8px 16px calc(8px + env(safe-area-inset-bottom));
  border-top:1px solid rgba(168,233,34,.28);
}
.mobile-bar a{
  display:flex;align-items:center;justify-content:center;height:44px;border-radius:var(--r-sm);
  background:var(--c-primary);color:var(--c-ink);font-weight:700;font-size:15px;
}
/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .main-nav{gap:20px;}
  .cmd-search{width:170px;}
}
@media (max-width:991.98px){
  .main-nav{display:none;}
  .cmd-search{display:none;}
  .quick-link{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-primary{display:none;}
  .hero{padding:64px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:-1;}
  .bento{grid-template-columns:1fr;}
  .demo-row{grid-template-columns:1fr;gap:28px;}
  .demo-row.reverse .demo-media{order:0;}
  .proof-stats{grid-template-columns:repeat(2,1fr);gap:24px 0;}
  .proof-stats > div:nth-child(3){padding-left:0;border-left:0;}
  .quote-grid{grid-template-columns:1fr;}
  .price-row{grid-template-columns:1fr;gap:28px;}
  .price-bar.featured{order:-1;padding-top:34px;padding-bottom:34px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .cta-band::after{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .float-cta{display:none;}
  .mobile-bar{display:block;}
  body{padding-bottom:70px;}
}
@media (max-width:575.98px){
  .container{padding:0 16px;}
  .sec{padding:64px 0;}
  .sec-ink{padding:72px 0;}
  .header-inner{height:64px;}
  .hero-metrics div{padding:0 14px;}
  .hero-metrics b{font-size:22px;}
  .bento-side{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .proof-stats{grid-template-columns:1fr;}
  .proof-stats > div{padding-left:0;border-left:0;padding-bottom:16px;border-bottom:1px solid rgba(232,237,230,.14);}
  .proof-stats > div:last-child{border-bottom:0;padding-bottom:0;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;}
  .btn{height:46px;}
}

/* roulang page: article */
:root{
  --c-primary:#A8E922;
  --c-primary-hover:#93D400;
  --c-primary-active:#7CBF00;
  --c-secondary:#5B4BFF;
  --c-accent:#FF8A3D;
  --c-ink:#0E1418;
  --c-ink-2:#17222A;
  --c-ink-text:#E8EDE6;
  --c-ink-muted:#A7B4AE;
  --c-bg:#F6F7F3;
  --c-surface:#FFFFFF;
  --c-line:#E4E8DE;
  --c-text:#131C22;
  --c-muted:#5C6B70;
  --r-panel:20px;
  --r-card:14px;
  --r-btn:10px;
  --r-input:12px;
  --r-img:16px;
  --sh-1:0 1px 2px rgba(14,20,24,.06);
  --sh-2:0 12px 32px -12px rgba(14,20,24,.14);
  --sh-3:0 16px 40px -14px rgba(14,20,24,.28);
  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--c-text);
  --bs-border-color:var(--c-line);
  --bs-link-color:var(--c-ink);
  --bs-link-hover-color:var(--c-primary-active);
  --bs-border-radius:14px;
  --bs-primary:#A8E922;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:var(--c-primary-active)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(168,233,34,.4),0 0 0 1px var(--c-primary-active);border-radius:6px}
.container{max-width:1200px !important;padding-left:20px !important;padding-right:20px !important;margin:0 auto}
@media (max-width:575.98px){
  .container{padding-left:16px !important;padding-right:16px !important}
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-bg);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--c-ink);flex:0 0 auto}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--c-primary);color:var(--c-ink);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;
  box-shadow:inset 0 -2px 0 rgba(14,20,24,.12);
}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.main-nav a{
  position:relative;font-size:14px;font-weight:500;color:var(--c-muted);padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav a:hover{color:var(--c-ink)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-ink);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:200px;height:40px;padding:0 12px;
  background:rgba(14,20,24,.04);border:1px solid transparent;border-radius:12px;
  transition:width .2s ease,border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.cmd-search i{color:var(--c-muted);font-size:13px}
.cmd-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;font-size:13px;color:var(--c-text);outline:none;
}
.cmd-search input::placeholder{color:var(--c-muted)}
.cmd-search .kbd{
  font-size:11px;font-weight:700;color:var(--c-muted);border:1px solid var(--c-line);
  border-radius:999px;padding:1px 7px;background:#fff;
}
.cmd-search:focus-within{
  width:280px;background:#fff;border-color:rgba(168,233,34,.7);
  box-shadow:0 0 0 3px rgba(168,233,34,.4);
}
.ghost-link{font-size:14px;font-weight:500;color:var(--c-muted);white-space:nowrap}
.ghost-link:hover{color:var(--c-ink)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:var(--r-btn);
  background:var(--c-primary);color:var(--c-ink);font-size:14px;font-weight:700;
  border:1px solid var(--c-primary);white-space:nowrap;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-main:hover{background:var(--c-primary-hover);border-color:var(--c-primary-hover);color:var(--c-ink);box-shadow:var(--sh-2)}
.btn-main:active{background:var(--c-primary-active);transform:translateY(1px)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);font-size:15px;
}
.mobile-drawer{background:var(--c-ink);color:var(--c-ink-text);border-left:1px solid rgba(168,233,34,.25) !important}
.mobile-drawer .offcanvas-header{border-bottom:1px solid rgba(168,233,34,.25);padding:18px 20px}
.mobile-drawer .drawer-title{font-size:16px;font-weight:800;color:var(--c-ink-text)}
.mobile-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.7}
.mobile-drawer .offcanvas-body{padding:18px 20px 32px}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:24px}
.drawer-nav a{
  display:block;padding:13px 0;font-size:15px;color:var(--c-ink-text);
  border-bottom:1px solid rgba(232,237,230,.1);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-primary)}
.drawer-cta{display:flex;flex-direction:column;gap:12px}
.drawer-cta .btn-main{width:100%;height:46px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:var(--r-btn);
  background:transparent;color:var(--c-ink);border:1px solid var(--c-line);
  font-size:14px;font-weight:600;transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-ink);background:rgba(168,233,34,.12)}

@media (max-width:1199.98px){
  .cmd-search{width:170px}
  .cmd-search:focus-within{width:210px}
}
@media (max-width:991.98px){
  .main-nav,.cmd-search,.ghost-link{display:none}
  .nav-toggle{display:inline-flex}
}
@media (max-width:575.98px){
  .header-inner{height:64px;gap:14px}
  .header-actions .btn-main{display:none}
}

/* ---------- page banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  background-image:linear-gradient(rgba(14,20,24,.93),rgba(14,20,24,.97)),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  color:var(--c-ink-text);
  padding:52px 0 60px;
}
.page-banner::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(168,233,34,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(168,233,34,.07) 1px,transparent 1px);
  background-size:48px 48px;
}
.page-banner::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--c-primary),rgba(168,233,34,0) 62%);
}
.page-banner .container{position:relative;z-index:1}
.breadcrumb-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-muted);margin-bottom:18px}
.breadcrumb-line a{color:var(--c-ink-muted)}
.breadcrumb-line a:hover{color:var(--c-primary)}
.breadcrumb-line .sep{color:rgba(167,180,174,.6)}
.breadcrumb-line .cur{color:var(--c-ink-text)}
.cat-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;border:1px solid var(--c-primary);
  color:var(--c-primary);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.article-title{
  margin:18px 0 18px;color:#fff;
  font-size:clamp(26px,4vw,44px);font-weight:800;line-height:1.22;letter-spacing:-.01em;
  max-width:960px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--c-ink-muted)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row .divider{width:1px;height:12px;background:rgba(167,180,174,.4);display:inline-block}
.meta-row i{color:var(--c-primary);font-size:12px}

/* ---------- article layout ---------- */
.article-main{padding:64px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:36px;align-items:start}
.article-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-panel);
  padding:44px 48px 40px;box-shadow:var(--sh-1);
}
.article-lead{
  font-size:16px;color:var(--c-muted);line-height:1.85;
  padding:0 0 22px;margin-bottom:26px;border-bottom:1px solid var(--c-line);
}
.article-body{max-width:760px;font-size:16.5px;line-height:1.85;color:var(--c-text)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  position:relative;font-size:clamp(21px,2.4vw,27px);font-weight:700;line-height:1.35;
  margin:44px 0 18px;padding-left:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:22px;border-radius:4px;background:var(--c-primary);
}
.article-body h3{font-size:19px;font-weight:600;line-height:1.45;margin:32px 0 12px;color:var(--c-ink)}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.25em}
.article-body li{margin-bottom:.5em}
.article-body ul li{list-style:none;position:relative;padding-left:20px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:3px;background:var(--c-primary);
}
.article-body ol li{list-style:decimal}
.article-body ol li::marker{color:var(--c-primary-active);font-weight:700}
.article-body img{border-radius:var(--r-img);margin:22px 0;border:1px solid var(--c-line)}
.article-body a{color:var(--c-ink);border-bottom:1px solid var(--c-primary);font-weight:600}
.article-body a:hover{color:var(--c-primary-active)}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:#F1F4EC;
  border-left:4px solid var(--c-primary);border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--c-muted);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-body th,.article-body td{padding:12px 10px;border-bottom:1px solid var(--c-line);text-align:left}
.article-body th{font-weight:700;color:var(--c-ink);background:rgba(168,233,34,.1)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:34px 0}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:38px;padding-top:26px;border-top:1px solid var(--c-line)}
.tag-row .label{font-size:13px;color:var(--c-muted);margin-right:4px}
.tag-pill{
  display:inline-flex;align-items:center;padding:5px 14px;border-radius:999px;
  font-size:13px;color:var(--c-muted);border:1px solid var(--c-line);background:#FBFCF8;
  transition:border-color .18s ease,color .18s ease;
}
.tag-pill:hover{border-color:var(--c-primary);color:var(--c-ink)}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px}
.share-row .label{font-size:13px;color:var(--c-muted)}
.share-btn{
  width:38px;height:38px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);background:#fff;color:var(--c-muted);font-size:14px;
  transition:border-color .18s ease,color .18s ease,transform .18s ease;
}
.share-btn:hover{border-color:var(--c-secondary);color:var(--c-secondary);transform:translateY(-2px)}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.toc{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px 20px 16px;box-shadow:var(--sh-1)}
.toc h3{font-size:14px;font-weight:700;letter-spacing:.04em;color:var(--c-ink);margin-bottom:12px}
.toc ul{display:flex;flex-direction:column;gap:2px}
.toc a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--c-muted);
  padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.toc a:hover{background:rgba(168,233,34,.12);color:var(--c-ink)}
.toc a.is-current{background:rgba(168,233,34,.16);color:var(--c-ink);border-left-color:var(--c-primary);font-weight:600}
.aside-card{
  background:var(--c-ink);color:var(--c-ink-text);border-radius:var(--r-card);padding:22px 20px;
  border:1px solid rgba(168,233,34,.25);
}
.aside-card h3{color:#fff;font-size:16px;font-weight:700;margin-bottom:8px}
.aside-card p{font-size:13.5px;color:var(--c-ink-muted);margin-bottom:16px}
.aside-card .btn-main{width:100%;height:42px}

/* ---------- empty ---------- */
.empty-block{
  max-width:640px;margin:0 auto;text-align:center;padding:52px 24px;
  border:1px dashed var(--c-line);border-radius:var(--r-card);background:#FBFCF8;
}
.empty-block i{font-size:30px;color:var(--c-primary-active);margin-bottom:14px;display:block}
.empty-block h2{font-size:21px;font-weight:700;margin-bottom:10px}
.empty-block p{font-size:14.5px;color:var(--c-muted);margin-bottom:20px}

/* ---------- related ---------- */
.related{padding:0 0 88px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{position:relative;font-size:clamp(22px,2.6vw,30px);font-weight:700;padding-left:18px}
.section-head h2::before{content:"";position:absolute;left:0;top:.32em;width:4px;height:22px;border-radius:4px;background:var(--c-primary)}
.section-head .more{font-size:14px;font-weight:600;border-bottom:1px solid var(--c-primary);color:var(--c-ink)}
.section-head .more:hover{color:var(--c-primary-active)}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(168,233,34,.5)}
.rel-cover{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--c-line)}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.rel-card:hover .rel-cover img{transform:scale(1.03)}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.5}
.rel-card:hover .rel-body h3{color:var(--c-primary-active)}
.rel-body p{font-size:14px;color:var(--c-muted);line-height:1.7;margin:0}
.rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted);margin-top:auto}
.rel-foot i{color:var(--c-primary-active)}

/* ---------- cta band ---------- */
.cta-band{padding:0 0 96px}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--r-panel);
  background:var(--c-ink);color:var(--c-ink-text);
  padding:44px 48px;display:flex;flex-wrap:wrap;align-items:center;gap:24px;justify-content:space-between;
}
.cta-inner::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(168,233,34,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(168,233,34,.08) 1px,transparent 1px);
  background-size:40px 40px;
}
.cta-inner::after{
  content:"";position:absolute;right:40px;top:34px;width:12px;height:12px;border-radius:999px;background:var(--c-primary);
  box-shadow:0 0 0 6px rgba(168,233,34,.14);
}
.cta-copy{position:relative;z-index:1;max-width:560px}
.cta-copy h2{color:#fff;font-size:clamp(21px,2.6vw,28px);font-weight:700;margin-bottom:8px}
.cta-copy p{font-size:14.5px;color:var(--c-ink-muted);margin:0}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn-ghost{color:var(--c-ink-text);border-color:rgba(232,237,230,.3)}
.cta-actions .btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(168,233,34,.1)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:var(--c-ink-text);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand .brand:hover{color:#fff}
.footer-brand p{font-size:13.5px;color:var(--c-ink-muted);line-height:1.8;max-width:320px;margin-bottom:18px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:999px;border:1px solid rgba(232,237,230,.2);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-ink-muted);font-size:13px;
  transition:border-color .18s ease,color .18s ease,transform .18s ease;
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.08em;color:#fff;margin-bottom:16px;text-transform:uppercase}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--c-ink-muted)}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  border-top:1px solid rgba(232,237,230,.12);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--c-ink-muted);
}

@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-aside{display:none}
  .article-body{max-width:none}
}
@media (max-width:991.98px){
  .article-main{padding:48px 0 64px}
  .article-card{padding:32px 28px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-inner{padding:34px 28px}
}
@media (max-width:575.98px){
  .page-banner{padding:38px 0 44px}
  .article-card{padding:24px 20px;border-radius:16px}
  .article-body{font-size:16px}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cta-band{padding-bottom:64px}
  .cta-inner{padding:28px 20px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 auto;min-height:44px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category1 */
:root{
  --c-primary:#A8E922;
  --c-primary-hover:#93D400;
  --c-primary-active:#7CBF00;
  --c-secondary:#5B4BFF;
  --c-accent:#FF8A3D;
  --c-ink:#0E1418;
  --c-ink-2:#17222A;
  --c-ink-text:#E8EDE6;
  --c-ink-muted:#A7B4AE;
  --c-bg:#F6F7F3;
  --c-surface:#FFFFFF;
  --c-line:#E4E8DE;
  --c-text:#131C22;
  --c-muted:#5C6B70;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-xs:12px;
  --sh-1:0 1px 2px rgba(14,20,24,.06);
  --sh-2:0 12px 32px -12px rgba(14,20,24,.14);
  --sh-3:0 16px 40px -14px rgba(14,20,24,.28);
  --font-num:"Inter","Manrope","PingFang SC",system-ui,sans-serif;
  --bs-primary:#A8E922;
  --bs-link-color:#131C22;
  --bs-link-hover-color:#0E1418;
  --bs-body-bg:#F6F7F3;
  --bs-body-color:#131C22;
  --bs-border-color:#E4E8DE;
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.8;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-ink)}
button,input{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid rgba(168,233,34,.55);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);border-bottom:1px solid transparent;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.site-header.is-stuck{border-bottom-color:var(--c-line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--c-ink);white-space:nowrap}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-primary);color:var(--c-ink);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;
  box-shadow:var(--sh-1);flex:none;
}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav a{
  position:relative;font-size:14px;font-weight:500;color:var(--c-muted);padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav a:hover{color:var(--c-ink)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-ink);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:200px;height:40px;padding:0 10px;
  background:rgba(14,20,24,.04);border:1px solid transparent;border-radius:12px;
  transition:width .2s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.cmd-search i{color:var(--c-muted);font-size:13px}
.cmd-search input{
  border:0;background:transparent;outline:none;width:100%;font-size:13px;color:var(--c-text);
}
.cmd-search input::placeholder{color:#8B999E}
.cmd-search .kbd{
  font-family:var(--font-num);font-size:11px;font-weight:700;color:var(--c-muted);
  background:#fff;border:1px solid var(--c-line);border-radius:6px;padding:1px 6px;flex:none;
}
.cmd-search:focus-within{width:280px;background:#fff;border-color:rgba(168,233,34,.7);box-shadow:0 0 0 2px rgba(168,233,34,.4)}
.link-quiet{font-size:14px;color:var(--c-muted);font-weight:500}
.link-quiet:hover{color:var(--c-ink)}
.btn-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-sm);border:1px solid transparent;
  background:var(--c-primary);color:var(--c-ink);font-size:15px;font-weight:700;
  cursor:pointer;transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-solid:hover{background:var(--c-primary-hover);color:var(--c-ink);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-solid:active{background:var(--c-primary-active);transform:translateY(0)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-sm);
  background:transparent;border:1px solid var(--c-line);color:var(--c-text);
  font-size:15px;font-weight:600;cursor:pointer;transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.btn-outline:hover{border-color:var(--c-ink);color:var(--c-ink);background:#fff}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-sm);
  background:transparent;border:1px solid rgba(232,237,230,.28);color:var(--c-ink-text);
  font-size:15px;font-weight:600;transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.btn-ghost-light:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(168,233,34,.06)}
.btn-sm{padding:0 16px;min-height:40px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);cursor:pointer;align-items:center;justify-content:center;
}
.nav-drawer{background:var(--c-ink);color:var(--c-ink-text);width:320px !important}
.nav-drawer .offcanvas-header{border-bottom:1px solid rgba(168,233,34,.25);padding:18px 22px}
.nav-drawer .brand{color:#fff}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(232,237,230,.2);
  background:transparent;color:var(--c-ink-text);cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;margin-bottom:24px}
.drawer-nav a{
  padding:14px 0;border-bottom:1px solid rgba(232,237,230,.12);
  font-size:15px;color:var(--c-ink-muted);font-weight:500;
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-primary)}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;background:var(--c-ink);color:var(--c-ink-text);
  padding:64px 0 72px;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;opacity:.22;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(168,233,34,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(168,233,34,.06) 1px,transparent 1px);
  background-size:56px 56px;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb-line{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-muted);margin-bottom:22px;
}
.breadcrumb-line a{color:var(--c-ink-muted)}
.breadcrumb-line a:hover{color:var(--c-primary)}
.breadcrumb-line span.sep{opacity:.5}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  border:1px solid rgba(168,233,34,.5);color:var(--c-primary);background:rgba(168,233,34,.08);
}
.page-hero h1{
  margin:18px 0 18px;font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.18;color:#fff;
}
.page-hero .lead{font-size:17px;color:var(--c-ink-muted);max-width:720px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-text)}
.hero-points li i{color:var(--c-primary);font-size:12px}
.page-hero .rule-bottom{
  position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(168,233,34,.9),rgba(168,233,34,0));
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section.tight{padding:64px 0}
.section-dark{background:var(--c-ink);color:var(--c-ink-text);padding:112px 0}
.section-head{max-width:760px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-title{
  position:relative;padding-left:20px;font-size:clamp(24px,3vw,34px);font-weight:700;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.24em;width:4px;height:22px;border-radius:2px;background:var(--c-primary);
}
.section-head.center .section-title{padding-left:0}
.section-head.center .section-title::before{display:none}
.section-sub{margin-top:14px;font-size:16px;color:var(--c-muted);line-height:1.8}
.section-dark .section-sub{color:var(--c-ink-muted)}
.section-dark .section-title{color:#fff}
.eyebrow{
  display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--c-primary);margin-bottom:12px;
}

/* ---------- feature rows ---------- */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:48px 0;border-bottom:1px solid var(--c-line);
}
.feature-row:last-child{border-bottom:0}
.feature-row.reverse .feature-media{order:2}
.feature-row.reverse .feature-body{order:1}
.feature-media{position:relative}
.feature-media img{
  width:100%;border-radius:16px;border:1px solid var(--c-line);
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.feature-media:hover img{transform:scale(1.02);box-shadow:var(--sh-2)}
.media-tag{
  position:absolute;left:16px;bottom:16px;display:inline-flex;align-items:center;gap:8px;
  background:rgba(14,20,24,.86);color:var(--c-ink-text);font-size:12px;font-weight:600;
  padding:7px 14px;border-radius:999px;backdrop-filter:blur(6px);
}
.media-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--c-primary);flex:none}
.feature-body h3{font-size:22px;font-weight:700;margin-bottom:14px}
.feature-body p{color:var(--c-muted);font-size:16px}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text);line-height:1.7}
.check-list li i{color:var(--c-primary-active);margin-top:6px;font-size:13px;flex:none}
.num-badge{
  display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:26px;
  border-radius:8px;background:rgba(168,233,34,.16);color:#4B7A00;
  font-family:var(--font-num);font-size:13px;font-weight:800;margin-bottom:14px;
}

/* ---------- stats ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(232,237,230,.16);border-bottom:1px solid rgba(232,237,230,.16);
}
.stat-item{padding:32px 24px;border-right:1px solid rgba(232,237,230,.16)}
.stat-item:last-child{border-right:0}
.stat-num{
  font-family:var(--font-num);font-size:38px;font-weight:800;color:var(--c-primary);line-height:1.1;
}
.stat-num small{font-size:16px;font-weight:700;margin-left:2px}
.stat-label{margin-top:8px;font-size:13px;color:var(--c-ink-muted)}

/* ---------- scene grid ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.scene-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:30px 28px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(168,233,34,.5)}
.scene-card.wide{grid-column:span 2}
.scene-icon{
  width:46px;height:46px;border-radius:12px;background:rgba(168,233,34,.14);color:#4B7A00;
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:18px;
}
.scene-card h3{font-size:17px;font-weight:600;margin-bottom:10px}
.scene-card p{font-size:14px;color:var(--c-muted);line-height:1.75}
.scene-card .tagline{
  margin-top:18px;font-size:13px;font-weight:600;color:var(--c-secondary);
  border-top:1px dashed var(--c-line);padding-top:14px;
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:28px 24px;box-shadow:var(--sh-1);
  transition:border-color .18s ease,transform .18s ease;
}
.step:hover{border-color:rgba(168,233,34,.55);transform:translateY(-2px)}
.step-num{
  font-family:var(--font-num);font-size:14px;font-weight:800;color:#4B7A00;
  background:rgba(168,233,34,.18);border-radius:999px;padding:3px 12px;display:inline-block;
  margin-bottom:16px;
}
.step h3{font-size:16px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--c-muted);line-height:1.75}

/* ---------- related categories ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-card{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px 22px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary)}
.cat-card .cat-index{
  font-family:var(--font-num);font-size:12px;font-weight:800;letter-spacing:.1em;
  color:var(--c-muted);display:block;margin-bottom:14px;
}
.cat-card h3{font-size:16px;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.cat-card h3 i{font-size:12px;color:var(--c-primary-active)}
.cat-card p{font-size:13.5px;color:var(--c-muted);line-height:1.7}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line)}
.faq-accordion .accordion-item:first-child{border-top:1px solid var(--c-line)}
.faq-accordion .accordion-button{
  position:relative;background:transparent;border:0;box-shadow:none;border-radius:0 !important;
  font-size:17px;font-weight:600;color:var(--c-text);padding:22px 44px 22px 20px;
  transition:color .18s ease;
}
.faq-accordion .accordion-button::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:2px;
  background:var(--c-line);transition:background .18s ease;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--c-ink)}
.faq-accordion .accordion-button:not(.collapsed)::before{background:var(--c-primary)}
.faq-accordion .accordion-button::after{
  content:"+";background-image:none;width:26px;height:26px;font-size:20px;font-weight:400;
  color:var(--c-muted);display:flex;align-items:center;justify-content:center;
  transform:none;transition:transform .2s ease,color .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"–";color:var(--c-ink);transform:rotate(180deg)}
.faq-accordion .accordion-button:focus{box-shadow:none}
.faq-accordion .accordion-body{
  padding:0 44px 26px 20px;font-size:15px;line-height:1.85;color:var(--c-muted);
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--c-ink);color:var(--c-ink-text);
  border-radius:var(--r-lg);padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(168,233,34,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(168,233,34,.07) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);color:#fff;margin-bottom:10px}
.cta-band p{color:var(--c-ink-muted);font-size:15px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-dot{
  position:absolute;right:-30px;top:-30px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(168,233,34,.35),transparent 70%);z-index:1;
}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:var(--c-ink-muted);padding:72px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--c-ink-muted);max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(232,237,230,.18);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-ink-muted);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(168,233,34,.08)}
.footer-col h4{
  font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:#fff;margin-bottom:18px;
}
.footer-col ul{display:grid;gap:12px}
.footer-col a{font-size:14px;color:var(--c-ink-muted)}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(232,237,230,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A9791;
}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:24px;bottom:32px;z-index:1040;display:none;align-items:center;gap:10px;
  padding:13px 22px;border-radius:999px;background:var(--c-ink);color:var(--c-ink-text);
  font-size:14px;font-weight:600;box-shadow:var(--sh-3);
  opacity:0;transform:translateY(12px);
  transition:opacity .2s ease,transform .2s ease,background .18s ease;
}
.float-cta:hover{color:#fff;background:var(--c-ink-2)}
.float-cta .dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);flex:none}
.float-cta.is-visible{opacity:1;transform:translateY(0)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .cmd-search{width:170px}
  .cmd-search:focus-within{width:220px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .scene-card.wide{grid-column:span 2}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .main-nav{display:none}
  .cmd-search,.link-quiet{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-solid{display:none}
  .header-inner{min-height:64px}
  .section{padding:72px 0}
  .section-dark{padding:80px 0}
  .feature-row{grid-template-columns:1fr;gap:28px;padding:36px 0}
  .feature-row.reverse .feature-media{order:1}
  .feature-row.reverse .feature-body{order:2}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(-n+2){border-bottom:1px solid rgba(232,237,230,.16)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .page-hero{padding:44px 0 56px}
  .page-hero .lead{font-size:16px}
  .section{padding:56px 0}
  .section-dark{padding:64px 0}
  .scene-grid,.cat-grid,.steps{grid-template-columns:1fr}
  .scene-card.wide{grid-column:span 1}
  .scene-card{padding:24px 20px}
  .stat-strip{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid rgba(232,237,230,.16);padding:24px 18px}
  .stat-item:last-child{border-bottom:0}
  .stat-num{font-size:32px}
  .faq-accordion .accordion-button{font-size:16px;padding:18px 40px 18px 16px}
  .faq-accordion .accordion-body{padding:0 24px 22px 16px}
  .faq-accordion .accordion-button::before{top:22px;bottom:22px}
  .cta-band{padding:34px 22px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    padding:16px 20px;opacity:1;transform:none;
    padding-bottom:calc(16px + env(safe-area-inset-bottom));
  }
}
@media (max-width:519px){
  .page-hero h1{font-size:26px}
  .section-title{font-size:22px}
  .btn-solid,.btn-outline,.btn-ghost-light{width:100%}
  .hero-points{gap:8px 16px}
}

/* roulang page: category2 */
:root{
  --c-primary:#A8E922;
  --c-primary-hover:#93D400;
  --c-primary-press:#7CBF00;
  --c-primary-soft:rgba(168,233,34,.14);
  --c-secondary:#5B4BFF;
  --c-accent:#FF8A3D;
  --c-ink:#0E1418;
  --c-ink-2:#17222A;
  --c-ink-text:#E8EDE6;
  --c-ink-muted:#A7B4AE;
  --c-bg:#F6F7F3;
  --c-surface:#FFFFFF;
  --c-line:#E4E8DE;
  --c-text:#131C22;
  --c-muted:#5C6B70;
  --r-panel:20px;
  --r-card:14px;
  --r-btn:10px;
  --r-input:12px;
  --r-img:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,20,24,.06);
  --sh-2:0 12px 32px -12px rgba(14,20,24,.14);
  --sh-3:0 16px 40px -14px rgba(14,20,24,.28);
  --t:180ms ease;
  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--c-text);
  --bs-border-color:var(--c-line);
  --bs-border-radius:14px;
  --bs-link-color:var(--c-text);
  --bs-link-hover-color:var(--c-ink);
  --bs-primary:#A8E922;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t)}
a:hover{color:var(--c-ink)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--c-ink)}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
button,input,textarea,select{font:inherit;color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid rgba(168,233,34,.45);
  outline-offset:2px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.num{font-family:"Inter","Manrope",system-ui,sans-serif;font-variant-numeric:tabular-nums;font-weight:800;letter-spacing:-.02em}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,247,243,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color var(--t),box-shadow var(--t),background-color var(--t);
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:26px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;font-size:17px;font-weight:800;color:var(--c-ink)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--c-primary);color:var(--c-ink);
  display:grid;place-items:center;font-size:16px;font-weight:800;line-height:1;
  box-shadow:0 4px 12px -6px rgba(124,191,0,.9);
}
.brand:hover .brand-mark{background:var(--c-primary-hover)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:6px}
.main-nav a{position:relative;padding:6px 0;font-size:14px;font-weight:500;color:var(--c-muted);white-space:nowrap}
.main-nav a:hover{color:var(--c-ink)}
.main-nav a.active{color:var(--c-ink);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:2px;background:var(--c-primary);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:8px;width:200px;height:40px;padding:0 12px;
  background:rgba(14,20,24,.045);border:1px solid transparent;border-radius:var(--r-input);
  transition:width var(--t),border-color var(--t),background-color var(--t),box-shadow var(--t);
}
.nav-search:focus-within{width:280px;background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(168,233,34,.25)}
.nav-search i{font-size:13px;color:var(--c-muted)}
.nav-search input{width:100%;border:0;background:transparent;outline:none;font-size:14px}
.nav-search input::placeholder{color:var(--c-muted)}
.kbd{font-size:11px;color:var(--c-muted);border:1px solid var(--c-line);border-radius:6px;padding:0 5px;line-height:18px;white-space:nowrap}
.quick-link{font-size:14px;color:var(--c-muted);white-space:nowrap}
.quick-link:hover{color:var(--c-ink)}

.btn-yy{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-yy.primary{background:var(--c-primary);color:var(--c-ink)}
.btn-yy.primary:hover{background:var(--c-primary-hover);color:var(--c-ink);transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(124,191,0,.95)}
.btn-yy.primary:active{background:var(--c-primary-press);transform:translateY(0)}
.btn-yy.outline{background:var(--c-surface);border-color:var(--c-line);color:var(--c-ink)}
.btn-yy.outline:hover{border-color:var(--c-primary);background:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-yy.on-dark-ghost{background:transparent;border-color:rgba(232,237,230,.28);color:var(--c-ink-text)}
.btn-yy.on-dark-ghost:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn-yy.lg{height:48px;padding:0 26px;font-size:15px}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);color:var(--c-ink);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary)}

.mobile-nav{background:var(--c-ink);color:var(--c-ink-text);width:min(86vw,340px);border-left:1px solid rgba(168,233,34,.28)}
.mobile-nav .offcanvas-header{border-bottom:1px solid rgba(232,237,230,.1);padding:20px 22px}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:700;color:var(--c-ink-text)}
.mobile-nav .btn-close{filter:invert(1) grayscale(1);opacity:.7}
.mobile-nav .offcanvas-body{padding:12px 22px 32px}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 0;font-size:15px;color:var(--c-ink-muted);
  border-bottom:1px solid rgba(232,237,230,.08);
}
.mobile-nav a:hover{color:var(--c-primary)}
.mobile-nav a.active{color:var(--c-primary);font-weight:600}
.mobile-nav .m-cta{margin-top:22px;width:100%}

/* ============ 页头 ============ */
.page-hero{position:relative;overflow:hidden;background:var(--c-ink);color:var(--c-ink-text);padding:76px 0 88px}
.page-hero .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.16;filter:saturate(.6)}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(168,233,34,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(168,233,34,.07) 1px,transparent 1px);
  background-size:64px 64px;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--c-primary),rgba(168,233,34,0));
}
.page-hero .hero-inner{position:relative;z-index:2;max-width:820px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-muted);margin-bottom:22px}
.crumb a{color:var(--c-ink-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{opacity:.5}
.crumb .cur{color:var(--c-primary)}
.pill{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.pill.on-dark{border:1px solid rgba(168,233,34,.5);color:var(--c-primary);background:rgba(168,233,34,.08)}
.pill.on-light{border:1px solid rgba(168,233,34,.7);color:#4d7a00;background:var(--c-primary-soft)}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.01em;
  color:#fff;margin:20px 0 18px;
}
.page-hero .lead{font-size:18px;line-height:1.75;color:var(--c-ink-muted);max-width:660px}
.hero-metrics{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:34px}
.hero-metrics .m{padding:0 26px;border-left:1px solid rgba(232,237,230,.18)}
.hero-metrics .m:first-child{padding-left:0;border-left:0}
.hero-metrics .m b{display:block;font-size:24px;color:var(--c-primary);line-height:1.3}
.hero-metrics .m span{font-size:13px;color:var(--c-ink-muted)}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section.tight{padding:64px 0}
.section.bg-surface{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-ink{background:var(--c-ink);color:var(--c-ink-text);padding:88px 0;position:relative;overflow:hidden}
.section-ink::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(168,233,34,.05) 1px,transparent 1px);
  background-size:100% 64px;
}
.section-ink .container{position:relative;z-index:2}
.section-head{max-width:720px;margin-bottom:44px}
.section-title{position:relative;padding-left:28px;font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25}
.section-title::before{content:"";position:absolute;left:0;top:7px;width:4px;height:22px;border-radius:4px;background:var(--c-primary)}
.section-ink .section-title{color:#fff}
.section-sub{margin-top:14px;font-size:15px;color:var(--c-muted);line-height:1.85}
.section-ink .section-sub{color:var(--c-ink-muted)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--c-primary-press);margin-bottom:14px;text-transform:uppercase}
.section-ink .eyebrow{color:var(--c-primary)}

/* ============ 主体两栏 ============ */
.layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:48px;align-items:start}
.toc{position:sticky;top:100px;padding:24px 22px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:18px;box-shadow:var(--sh-1)}
.toc h2{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--c-muted);text-transform:uppercase;margin-bottom:14px}
.toc li:last-child a{border-bottom:0}
.toc a{display:flex;gap:12px;align-items:baseline;padding:10px 0;font-size:14px;color:var(--c-muted);border-bottom:1px dashed var(--c-line)}
.toc a .n{font-family:"Inter",system-ui,sans-serif;font-size:12px;font-weight:700;color:#9AA6A1;min-width:20px}
.toc a:hover{color:var(--c-ink)}
.toc a.is-active{color:var(--c-ink);font-weight:600}
.toc a.is-active .n{color:var(--c-primary-press)}
.toc-foot{margin-top:18px;padding-top:18px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted);line-height:1.7}
.toc-foot a{display:inline-flex;align-items:center;gap:6px;color:var(--c-ink);font-weight:600;padding:0;border:0}
.toc-foot a:hover{color:var(--c-primary-press)}

.step-list{border-top:1px solid var(--c-line)}
.step-item{display:grid;grid-template-columns:64px minmax(0,1fr);gap:26px;padding:38px 0;border-bottom:1px solid var(--c-line)}
.step-item h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:10px}
.step-item p{font-size:15.5px;color:var(--c-muted);line-height:1.85;margin-bottom:0}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;
  border-radius:16px;background:var(--c-primary);color:var(--c-ink);
  font-family:"Inter",system-ui,sans-serif;font-size:20px;font-weight:800;letter-spacing:-.02em;
}
.step-points{margin-top:16px;display:grid;gap:9px}
.step-points li{position:relative;padding-left:26px;font-size:14px;color:var(--c-muted);line-height:1.7}
.step-points li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px;
  position:absolute;left:0;top:4px;width:16px;height:16px;border-radius:5px;
  background:var(--c-primary-soft);color:#4d7a00;display:grid;place-items:center;
}

/* ============ 数据带 ============ */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat-row .s{padding:0 30px;border-left:1px solid rgba(232,237,230,.18)}
.stat-row .s:first-child{padding-left:0;border-left:0}
.stat-row .s b{display:block;font-size:clamp(28px,3.4vw,40px);color:var(--c-primary);line-height:1.2;margin-bottom:8px}
.stat-row .s span{font-size:13px;color:var(--c-ink-muted);line-height:1.7;display:block}

/* ============ 资讯卡片 ============ */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rec-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:18px;overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(168,233,34,.55)}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#e9ece4}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.rec-body h3{font-size:17px;font-weight:600;line-height:1.55}
.rec-body p{font-size:14px;color:var(--c-muted);line-height:1.8;margin:0}
.rec-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted)}
.rec-meta a{display:inline-flex;align-items:center;gap:6px;color:var(--c-ink);font-weight:600}
.rec-meta a:hover{color:var(--c-primary-press)}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line)}
.faq .accordion-item:first-child{border-top:1px solid var(--c-line)}
.faq .accordion-button{
  position:relative;background:transparent;box-shadow:none;border:0;
  padding:22px 52px 22px 20px;font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.6;
}
.faq .accordion-button:not(.collapsed){color:var(--c-ink);background:transparent}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:6px;border-radius:6px;
  background:var(--c-line);transition:background-color var(--t);
}
.faq .accordion-button:not(.collapsed)::before{background:var(--c-primary)}
.faq .accordion-button:focus{box-shadow:none;border:0}
.faq .accordion-button::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border:1px solid var(--c-line);border-radius:9px;background:#fff;
  background-image:none;display:grid;place-items:center;font-size:17px;font-weight:600;color:var(--c-muted);
  transition:all var(--t);
}
.faq .accordion-button:not(.collapsed)::after{
  content:"\2212";background:var(--c-primary);border-color:var(--c-primary);color:var(--c-ink);
}
.faq .accordion-body{padding:0 20px 26px 20px;font-size:15px;line-height:1.85;color:var(--c-muted)}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--c-ink);color:var(--c-ink-text);
  border-radius:var(--r-panel);padding:56px 56px;display:flex;align-items:center;gap:40px;
  justify-content:space-between;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(168,233,34,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(168,233,34,.06) 1px,transparent 1px);
  background-size:56px 56px;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(168,233,34,.22),rgba(168,233,34,0) 68%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:10px}
.cta-band p{color:var(--c-ink-muted);font-size:15px;margin:0;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1040;
  display:none;align-items:center;gap:10px;height:52px;padding:0 24px;
  background:var(--c-primary);color:var(--c-ink);font-size:15px;font-weight:700;
  border-radius:var(--r-pill);box-shadow:var(--sh-3);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity 200ms ease,transform 200ms ease,background-color var(--t);
}
.float-cta .dot{width:8px;height:8px;border-radius:50%;background:var(--c-ink-2);box-shadow:0 0 0 4px rgba(14,20,24,.12)}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:var(--c-primary-hover);color:var(--c-ink)}
.mobile-bar{display:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:var(--c-ink-muted);margin-top:96px;padding:72px 0 32px;border-top:1px solid rgba(232,237,230,.08)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--c-ink-muted);max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  border:1px solid rgba(232,237,230,.16);color:var(--c-ink-muted);font-size:14px;
  transition:all var(--t);
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.14em;color:#fff;text-transform:uppercase;margin-bottom:18px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--c-ink-muted)}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(232,237,230,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8D9A95;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .main-nav{gap:20px}
  .nav-search{width:170px}
  .nav-search:focus-within{width:220px}
}
@media (max-width:991px){
  .main-nav,.nav-search,.quick-link{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px}
  .layout{grid-template-columns:1fr;gap:32px}
  .toc{position:static}
  .toc ol{display:grid;grid-template-columns:repeat(2,1fr);gap:0 20px}
  .rec-grid{grid-template-columns:repeat(2,1fr)}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .stat-row .s:nth-child(3){padding-left:0;border-left:0}
  .cta-band{padding:44px 36px}
  .page-hero{padding:60px 0 72px}
  .section{padding:76px 0}
  .section-ink{padding:72px 0}
}
@media (max-width:767px){
  .hero-metrics .m{padding:0 18px}
  .step-item{grid-template-columns:1fr;gap:16px;padding:32px 0}
  .step-num{width:48px;height:48px;font-size:18px;border-radius:14px}
  .rec-grid{grid-template-columns:1fr}
  .toc ol{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn-yy{flex:1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .footer-brand{grid-column:1 / -1}
  .site-footer{padding:56px 0 28px;margin-top:72px}
  .float-cta{display:none !important}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:1040;
    height:56px;padding:0 16px calc(env(safe-area-inset-bottom,0px));
    align-items:center;justify-content:space-between;gap:12px;
    background:var(--c-ink);border-top:1px solid rgba(168,233,34,.28);
  }
  .mobile-bar span{font-size:13px;color:var(--c-ink-muted)}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .page-hero h1{font-size:28px}
  .page-hero .lead{font-size:16px}
  .hero-metrics{gap:18px 0}
  .hero-metrics .m{padding:0 14px}
  .hero-metrics .m b{font-size:20px}
  .stat-row{grid-template-columns:1fr;gap:26px 0}
  .stat-row .s{padding-left:0;border-left:0}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
}

/* roulang page: category3 */
:root{
  --c-primary:#A8E922;
  --c-primary-hover:#93D400;
  --c-primary-active:#7CBF00;
  --c-secondary:#5B4BFF;
  --c-accent:#FF8A3D;
  --c-ink:#0E1418;
  --c-ink-2:#17222A;
  --c-ink-text:#E8EDE6;
  --c-ink-muted:#A7B4AE;
  --c-bg:#F6F7F3;
  --c-surface:#FFFFFF;
  --c-line:#E4E8DE;
  --c-text:#131C22;
  --c-muted:#5C6B70;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --r-input:12px;
  --r-img:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,20,24,.06);
  --sh-2:0 12px 32px -12px rgba(14,20,24,.14);
  --sh-3:0 16px 40px -14px rgba(14,20,24,.28);
  --ff-base:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --ff-num:Inter,Manrope,"PingFang SC","Microsoft YaHei",sans-serif;
  --container:1200px;
  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--c-text);
  --bs-border-color:var(--c-line);
  --bs-border-radius:14px;
  --bs-link-color:var(--c-text);
  --bs-link-hover-color:var(--c-primary-active);
  --bs-primary:#A8E922;
  --bs-font-sans-serif:var(--ff-base);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--ff-base);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  padding-bottom:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-text);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,opacity .18s ease;}
a:hover{color:var(--c-primary-active);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0 0 .6em;color:var(--c-text);letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid rgba(168,233,34,.55);outline-offset:2px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
.section{padding:96px 0;}
.section--tight{padding:64px 0 96px;}
.section--ink{background:var(--c-ink);color:var(--c-ink-text);padding:112px 0;}
.section--line{border-top:1px solid var(--c-line);padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--c-muted);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--c-primary);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{position:relative;padding-left:28px;font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:22px;border-radius:2px;background:var(--c-primary);
}
.section-head p{color:var(--c-muted);font-size:16px;margin-bottom:0;}
.section--ink .section-head h2{color:var(--c-ink-text);}
.section--ink .section-head p{color:var(--c-ink-muted);}
.section--ink .eyebrow{color:var(--c-ink-muted);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn-primary-ink{background:var(--c-primary);color:var(--c-ink);box-shadow:var(--sh-1);}
.btn-primary-ink:hover{background:var(--c-primary-hover);color:var(--c-ink);box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-primary-ink:active{background:var(--c-primary-active);transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-text);border-color:var(--c-line);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-text);background:rgba(168,233,34,.10);}
.btn-ghost-light{background:transparent;color:var(--c-ink-text);border-color:rgba(232,237,230,.28);}
.btn-ghost-light:hover{border-color:var(--c-primary);color:var(--c-ink-text);background:rgba(168,233,34,.12);}
.btn-block{width:100%;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(246,247,243,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid transparent;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.site-header.is-stuck{border-bottom-color:var(--c-line);box-shadow:0 6px 24px -18px rgba(14,20,24,.35);}
.header-inner{display:flex;align-items:center;gap:26px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--c-ink);letter-spacing:-.01em;}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:var(--c-ink);
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;font-weight:800;flex:none;
}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.main-nav a{
  position:relative;font-size:14px;font-weight:500;color:var(--c-muted);padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav a:hover{color:var(--c-text);}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-text);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:200px;height:40px;padding:0 12px;border-radius:var(--r-input);
  background:rgba(14,20,24,.04);border:1px solid transparent;
  transition:width .2s ease,border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.nav-search:focus-within{width:280px;background:var(--c-surface);border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(168,233,34,.28);}
.nav-search i{color:var(--c-muted);font-size:13px;}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;
}
.nav-search input::placeholder{color:var(--c-muted);}
.kbd-hint{
  font-family:var(--ff-num);font-size:11px;font-weight:600;color:var(--c-muted);
  border:1px solid var(--c-line);border-radius:var(--r-pill);padding:2px 7px;background:var(--c-surface);
}
.link-quiet{font-size:14px;font-weight:500;color:var(--c-muted);}
.link-quiet:hover{color:var(--c-text);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-text);align-items:center;justify-content:center;
}
.offcanvas.ink-drawer{background:var(--c-ink);color:var(--c-ink-text);width:320px;}
.offcanvas.ink-drawer .offcanvas-header{border-bottom:1px solid rgba(168,233,34,.3);}
.offcanvas.ink-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.9);opacity:.75;}
.offcanvas.ink-drawer .brand{color:var(--c-ink-text);}
.drawer-nav{display:flex;flex-direction:column;gap:2px;padding:12px 0;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:15px;font-weight:500;color:var(--c-ink-muted);
  border-bottom:1px solid rgba(232,237,230,.10);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-primary);}
.drawer-actions{padding-top:22px;display:flex;flex-direction:column;gap:12px;}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;background:var(--c-ink);color:var(--c-ink-text);overflow:hidden;
  padding:80px 0 84px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(168,233,34,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(168,233,34,.09) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--c-primary),rgba(168,233,34,0));
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-muted);margin-bottom:22px;}
.crumbs a{color:var(--c-ink-muted);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs span.sep{opacity:.5;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(168,233,34,.55);color:var(--c-primary);
  font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 4px rgba(168,233,34,.16);}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.01em;
  color:var(--c-ink-text);max-width:16em;margin-bottom:20px;
}
.page-hero .lead{font-size:18px;line-height:1.75;color:var(--c-ink-muted);max-width:44em;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;align-items:stretch;}
.hero-stats .stat{padding:0 28px;border-left:1px solid rgba(232,237,230,.18);}
.hero-stats .stat:first-child{padding-left:0;border-left:0;}
.hero-stats .num{display:block;font-family:var(--ff-num);font-size:26px;font-weight:800;color:var(--c-primary);line-height:1.2;}
.hero-stats .lbl{font-size:13px;color:var(--c-ink-muted);}

/* ============ Bento ============ */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:22px;}
.bento-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:30px;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.bento-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(168,233,34,.5);}
.bento-card--lg{grid-column:span 7;padding:0;overflow:hidden;}
.bento-card--md{grid-column:span 5;}
.bento-card--sm{grid-column:span 4;}
.bento-card--half{grid-column:span 6;}
.bento-media{position:relative;border-radius:var(--r-lg) var(--r-lg) 0 0;overflow:hidden;background:var(--c-ink-2);}
.bento-media img{width:100%;height:230px;object-fit:cover;transition:transform .25s ease;}
.bento-card:hover .bento-media img{transform:scale(1.03);}
.bento-media .tag{
  position:absolute;left:18px;top:18px;padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(14,20,24,.72);border:1px solid rgba(168,233,34,.5);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.bento-body{padding:28px 30px 32px;display:flex;flex-direction:column;flex:1;}
.bento-num{
  font-family:var(--ff-num);font-size:13px;font-weight:700;color:var(--c-primary-active);
  letter-spacing:.06em;margin-bottom:12px;
}
.bento-card h3{font-size:17px;font-weight:600;line-height:1.45;margin-bottom:10px;}
.bento-body h3{font-size:21px;}
.bento-card p{font-size:15px;color:var(--c-muted);line-height:1.75;margin-bottom:0;}
.bento-icon{
  width:42px;height:42px;border-radius:12px;background:rgba(168,233,34,.16);
  color:var(--c-primary-active);display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;margin-bottom:16px;
}
.bento-list{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
.bento-list li{display:flex;gap:9px;align-items:flex-start;font-size:14px;color:var(--c-muted);}
.bento-list i{color:var(--c-primary-active);font-size:12px;margin-top:7px;}

/* ============ 场景条 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.scene-item{
  padding:26px 24px;border-radius:var(--r-md);
  background:rgba(232,237,230,.05);border:1px solid rgba(232,237,230,.14);
  transition:border-color .18s ease,background-color .18s ease,transform .18s ease;
}
.scene-item:hover{border-color:rgba(168,233,34,.5);background:rgba(168,233,34,.06);transform:translateY(-2px);}
.scene-item .idx{font-family:var(--ff-num);font-size:12px;font-weight:700;color:var(--c-accent);letter-spacing:.08em;}
.scene-item h3{font-size:17px;font-weight:600;color:var(--c-ink-text);margin:12px 0 8px;}
.scene-item p{font-size:14px;color:var(--c-ink-muted);line-height:1.75;margin:0;}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;background:var(--c-surface);}
.flow-step{padding:34px 28px;border-right:1px solid var(--c-line);position:relative;transition:background-color .18s ease;}
.flow-step:last-child{border-right:0;}
.flow-step:hover{background:rgba(168,233,34,.07);}
.flow-step .step-num{
  font-family:var(--ff-num);font-size:30px;font-weight:800;color:var(--c-primary);
  line-height:1;margin-bottom:16px;display:block;
}
.flow-step h3{font-size:17px;font-weight:600;margin-bottom:10px;}
.flow-step p{font-size:14px;color:var(--c-muted);line-height:1.75;margin:0;}

/* ============ 数据 / 证据 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-bottom:52px;}
.metric{padding:0 30px;border-left:1px solid rgba(232,237,230,.16);}
.metric:first-child{padding-left:0;border-left:0;}
.metric .num{font-family:var(--ff-num);font-size:clamp(30px,3.4vw,42px);font-weight:800;color:var(--c-primary);line-height:1.1;display:block;}
.metric .lbl{font-size:13px;color:var(--c-ink-muted);margin-top:8px;display:block;}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.quote-card{
  background:rgba(232,237,230,.05);border:1px solid rgba(232,237,230,.14);
  border-radius:var(--r-md);padding:26px 24px;
}
.quote-card p{font-size:15px;line-height:1.8;color:var(--c-ink-text);margin-bottom:20px;}
.quote-who{display:flex;align-items:center;gap:12px;}
.avatar{
  width:38px;height:38px;border-radius:50%;background:rgba(168,233,34,.18);
  border:1px solid rgba(168,233,34,.4);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;flex:none;
}
.quote-who .name{font-size:14px;font-weight:600;color:var(--c-ink-text);display:block;line-height:1.4;}
.quote-who .role{font-size:12px;color:var(--c-ink-muted);}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line);}
.faq .accordion-button{
  background:transparent;border:0;box-shadow:none;
  padding:22px 48px 22px 22px;position:relative;
  font-size:17px;font-weight:600;color:var(--c-text);line-height:1.6;
}
.faq .accordion-button:not(.collapsed){color:var(--c-text);background:transparent;box-shadow:none;}
.faq .accordion-button:focus{box-shadow:none;outline:none;}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:0;border-radius:3px;background:var(--c-primary);
  transition:height .2s ease;
}
.faq .accordion-button:not(.collapsed)::before{height:26px;}
.faq .accordion-button::after{
  content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;background-image:none;
  font-family:var(--ff-num);font-size:22px;font-weight:400;color:var(--c-muted);
}
.faq .accordion-button:not(.collapsed)::after{content:"−";color:var(--c-text);}
.faq .accordion-body{padding:0 48px 26px 22px;font-size:15px;line-height:1.85;color:var(--c-muted);}

/* ============ CTA + 表单 ============ */
.cta-band{
  background:var(--c-ink);color:var(--c-ink-text);border-radius:var(--r-lg);
  padding:56px 52px;position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(168,233,34,.22),rgba(168,233,34,0) 70%);
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(168,233,34,.8),rgba(168,233,34,0));
}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:700;color:var(--c-ink-text);line-height:1.3;margin-bottom:14px;}
.cta-band .cta-sub{color:var(--c-ink-muted);font-size:16px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--c-primary);margin-right:10px;vertical-align:middle;}
.form-card{
  position:relative;z-index:2;background:rgba(232,237,230,.06);border:1px solid rgba(232,237,230,.16);
  border-radius:var(--r-md);padding:28px 26px;backdrop-filter:blur(2px);
}
.form-card h3{font-size:17px;font-weight:600;color:var(--c-ink-text);margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--c-ink-muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink-muted);margin-bottom:7px;}
.field input,.field select{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-input);
  background:rgba(14,20,24,.45);border:1px solid rgba(232,237,230,.2);color:var(--c-ink-text);
  outline:none;transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field input::placeholder{color:rgba(167,180,174,.75);}
.field input:focus,.field select:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(168,233,34,.25);background:rgba(14,20,24,.7);
}
.field select option{background:var(--c-ink-2);color:var(--c-ink-text);}
.field .hint{font-size:12px;color:var(--c-ink-muted);margin-top:6px;}
.form-card .btn-primary-ink{width:100%;margin-top:6px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:var(--c-ink-muted);padding:76px 0 30px;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{color:var(--c-ink-text);margin-bottom:18px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--c-ink-muted);max-width:32em;}
.footer-social{display:flex;gap:12px;margin-top:20px;}
.footer-social a{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid rgba(232,237,230,.18);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-ink-muted);
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(168,233,34,.08);}
.footer-col h4{
  font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--c-ink-text);margin-bottom:18px;
}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:var(--c-ink-muted);}
.footer-col a:hover{color:var(--c-primary);}
.footer-bottom{
  border-top:1px solid rgba(232,237,230,.14);padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1029;
  display:inline-flex;align-items:center;gap:10px;
  padding:0 22px;height:52px;border-radius:var(--r-pill);
  background:var(--c-ink);color:var(--c-ink-text);font-size:14px;font-weight:600;
  box-shadow:var(--sh-3);opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .2s ease,transform .2s ease,background-color .2s ease;
}
.float-cta .dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);}
.float-cta.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.float-cta:hover{background:var(--c-ink-2);color:var(--c-ink-text);}
.mobile-cta-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1029;display:none;
  height:calc(56px + env(safe-area-inset-bottom,0px));
  padding-bottom:env(safe-area-inset-bottom,0px);
  align-items:center;justify-content:space-between;gap:14px;
  padding-left:18px;padding-right:18px;
  background:var(--c-ink);border-top:1px solid rgba(168,233,34,.35);
}
.mobile-cta-bar span{font-size:14px;color:var(--c-ink-text);font-weight:500;}
.mobile-cta-bar .btn{min-height:38px;padding:0 18px;font-size:14px;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-search{width:160px;}
  .nav-search:focus-within{width:220px;}
  .main-nav{gap:20px;}
}
@media (max-width:991.98px){
  .main-nav,.nav-search,.link-quiet{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{min-height:64px;}
  .section{padding:76px 0;}
  .section--ink{padding:84px 0;}
  .page-hero{padding:60px 0 64px;}
  .bento-card--lg,.bento-card--md{grid-column:span 12;}
  .bento-card--sm,.bento-card--half{grid-column:span 6;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow-step{border-bottom:1px solid var(--c-line);}
  .flow-step:nth-child(2){border-right:0;}
  .flow-step:nth-last-child(-n+2){border-bottom:0;}
  .metrics{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .metric:nth-child(3){padding-left:0;border-left:0;}
  .quote-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;gap:36px;padding:44px 34px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:34px;}
}
@media (max-width:767.98px){
  .float-cta{display:none;}
  .mobile-cta-bar{display:flex;}
  body{padding-bottom:56px;}
  .site-footer{padding-bottom:80px;}
  .hero-stats{gap:22px 0;}
  .hero-stats .stat{padding:0 18px;}
  .hero-stats .stat:nth-child(3){padding-left:0;border-left:0;}
  .section{padding:64px 0;}
  .section--ink{padding:68px 0;}
  .bento-card{padding:24px;}
  .bento-body{padding:24px;}
  .metrics{grid-template-columns:1fr;gap:24px;}
  .metric{padding-left:0;border-left:0;border-top:1px solid rgba(232,237,230,.16);padding-top:20px;}
  .metric:first-child{border-top:0;padding-top:0;}
  .flow{grid-template-columns:1fr;}
  .flow-step{border-right:0;border-bottom:1px solid var(--c-line);}
  .flow-step:last-child{border-bottom:0;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .bento-card--sm,.bento-card--half{grid-column:span 12;}
  .scene-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .page-hero h1{max-width:none;}
}

/* roulang page: category4 */
:root{
  --c-primary:#A8E922;
  --c-primary-hover:#93D400;
  --c-primary-press:#7CBF00;
  --c-secondary:#5B4BFF;
  --c-accent:#FF8A3D;
  --c-ink:#0E1418;
  --c-ink-2:#17222A;
  --c-ink-text:#E8EDE6;
  --c-ink-muted:#A7B4AE;
  --c-bg:#F6F7F3;
  --c-surface:#FFFFFF;
  --c-line:#E4E8DE;
  --c-text:#131C22;
  --c-muted:#5C6B70;

  --r-xl:20px;
  --r-lg:16px;
  --r-md:14px;
  --r-sm:10px;
  --r-input:12px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(14,20,24,.06);
  --sh-2:0 12px 32px -12px rgba(14,20,24,.14);
  --sh-3:0 16px 40px -14px rgba(14,20,24,.28);

  --ease:150ms ease;

  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--c-text);
  --bs-border-color:var(--c-line);
  --bs-border-radius:var(--r-md);
  --bs-link-color:#131C22;
  --bs-link-hover-color:#131C22;
  --bs-primary:var(--c-primary);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-text);text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:var(--c-ink);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid rgba(168,233,34,.45);outline-offset:2px;}
[id]{scroll-margin-top:92px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
.section{padding:96px 0;}
.section-line{border-top:1px solid var(--c-line);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--c-muted);
  padding:6px 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);
  background:var(--c-surface);
}
.eyebrow.on-ink{
  color:var(--c-ink-text);border-color:rgba(168,233,34,.45);background:rgba(168,233,34,.08);
}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head h2{
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;font-weight:700;position:relative;padding-left:22px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.28em;
  width:4px;height:22px;border-radius:2px;background:var(--c-primary);
}
.sec-head .sec-sub{margin-top:14px;color:var(--c-muted);font-size:15px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,247,243,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--c-primary);color:var(--c-ink);
  display:grid;place-items:center;font-weight:800;font-size:17px;
  box-shadow:0 6px 16px -8px rgba(124,191,0,.8);
}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--c-ink);}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.main-nav a{
  position:relative;font-size:14px;font-weight:500;color:var(--c-muted);
  padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  border-radius:2px;background:var(--c-primary);transform:scaleX(0);
  transform-origin:left;transition:transform var(--ease);
}
.main-nav a:hover{color:var(--c-ink);}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-ink);font-weight:600;}
.header-tools{display:flex;align-items:center;gap:16px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:200px;height:40px;padding:0 12px;
  background:rgba(14,20,24,.04);
  border:1px solid transparent;border-radius:var(--r-input);
  transition:width var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.nav-search i{color:var(--c-muted);font-size:13px;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--c-text);
}
.nav-search input::placeholder{color:#96A29C;}
.nav-search .kbd{
  font-size:11px;color:var(--c-muted);border:1px solid var(--c-line);
  border-radius:6px;padding:1px 5px;white-space:nowrap;background:var(--c-surface);
}
.nav-search:focus-within{
  width:280px;background:var(--c-surface);
  border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(168,233,34,.22);
}
.quiet-link{font-size:14px;font-weight:500;color:var(--c-muted);white-space:nowrap;}
.quiet-link:hover{color:var(--c-ink);}
.btn-lime{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-sm);
  background:var(--c-primary);color:var(--c-ink);
  font-size:14px;font-weight:700;border:1px solid transparent;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-lime:hover{background:var(--c-primary-hover);color:var(--c-ink);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-lime:active{background:var(--c-primary-press);transform:translateY(0);}
.nav-burger{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);
  align-items:center;justify-content:center;font-size:16px;
}
.offcanvas.ink-drawer{background:var(--c-ink);color:var(--c-ink-text);}
.ink-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px;border-bottom:1px solid rgba(168,233,34,.28);}
.ink-drawer .drawer-head .brand-name{color:#fff;}
.ink-drawer .drawer-close{background:transparent;border:1px solid rgba(255,255,255,.25);color:#fff;width:38px;height:38px;border-radius:10px;}
.ink-drawer .drawer-list{padding:12px 20px 24px;}
.ink-drawer .drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 0;color:var(--c-ink-text);font-size:15px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.ink-drawer .drawer-list a:hover,.ink-drawer .drawer-list a.active{color:var(--c-primary);}
.ink-drawer .drawer-cta{margin:8px 20px 28px;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;background:var(--c-ink);overflow:hidden;
  padding:68px 0 72px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.16;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(168,233,34,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(168,233,34,.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 88%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb-line{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--c-ink-muted);margin-bottom:22px;
}
.breadcrumb-line a{color:var(--c-ink-muted);}
.breadcrumb-line a:hover{color:var(--c-primary);}
.breadcrumb-line .sep{color:rgba(255,255,255,.28);}
.breadcrumb-line .current{color:var(--c-ink-text);}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4.6vw,50px);line-height:1.18;
  font-weight:800;letter-spacing:-.01em;max-width:820px;margin-top:18px;
}
.page-hero .lede{
  margin-top:18px;max-width:660px;color:var(--c-ink-muted);
  font-size:17px;line-height:1.8;
}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:0;margin-top:38px;
  border-top:1px solid rgba(255,255,255,.1);padding-top:22px;
}
.hero-metrics .metric{padding-right:34px;margin-right:34px;border-right:1px solid rgba(255,255,255,.12);}
.hero-metrics .metric:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-metrics .num{
  font-family:Inter,Manrope,"PingFang SC",sans-serif;
  font-size:26px;font-weight:800;color:var(--c-primary);line-height:1.2;
}
.hero-metrics .num small{font-size:13px;font-weight:600;margin-left:3px;color:var(--c-primary);}
.hero-metrics .lab{font-size:13px;color:var(--c-ink-muted);margin-top:2px;}

/* ---------- 筛选标签 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-bottom:26px;
}
.filter-label{font-size:13px;color:var(--c-muted);margin-right:6px;}
.filter-pill{
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-muted);
  font-size:14px;font-weight:500;padding:8px 18px;border-radius:var(--r-pill);
  cursor:pointer;transition:all var(--ease);
}
.filter-pill:hover{border-color:var(--c-primary);color:var(--c-ink);}
.filter-pill.is-active{
  background:var(--c-primary);border-color:var(--c-primary);
  color:var(--c-ink);font-weight:700;
  box-shadow:0 8px 20px -12px rgba(124,191,0,.9);
}

/* ---------- 清单 ---------- */
.list-wrap{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-xl);box-shadow:var(--sh-1);overflow:hidden;
}
.faq-group{padding:8px 0;}
.faq-group + .faq-group{border-top:1px solid var(--c-line);}
.faq-group.is-hidden{display:none;}
.group-head{
  display:flex;align-items:baseline;gap:12px;
  padding:22px 30px 10px;
}
.group-head .g-num{
  font-family:Inter,Manrope,sans-serif;font-size:13px;font-weight:800;
  color:var(--c-ink);background:var(--c-primary);
  border-radius:6px;padding:2px 8px;letter-spacing:.02em;
}
.group-head h3{font-size:18px;font-weight:600;}
.group-head .g-note{font-size:13px;color:var(--c-muted);margin-left:auto;}

.faq-row{border-top:1px solid var(--c-line);}
.faq-row:first-of-type{border-top:0;}
.faq-row summary{
  display:flex;align-items:center;gap:18px;
  padding:20px 30px;cursor:pointer;list-style:none;
  transition:background var(--ease);
}
.faq-row summary::-webkit-details-marker{display:none;}
.faq-row summary:hover{background:rgba(168,233,34,.08);}
.row-index{
  font-family:Inter,Manrope,sans-serif;font-size:13px;font-weight:700;
  color:var(--c-muted);min-width:26px;
}
.row-main{flex:1;min-width:0;}
.row-title{display:block;font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.5;}
.row-desc{display:block;font-size:13.5px;color:var(--c-muted);margin-top:4px;line-height:1.6;}
.row-plus{
  position:relative;width:26px;height:26px;flex-shrink:0;
  border-radius:50%;border:1px solid var(--c-line);
  display:grid;place-items:center;transition:all var(--ease);
}
.row-plus::before,.row-plus::after{
  content:"";position:absolute;background:var(--c-muted);border-radius:2px;
  transition:all var(--ease);
}
.row-plus::before{width:11px;height:1.6px;}
.row-plus::after{width:1.6px;height:11px;}
.faq-row[open] summary{background:rgba(168,233,34,.05);}
.faq-row[open] .row-title{color:var(--c-ink);}
.faq-row[open] .row-plus{border-color:var(--c-primary);background:var(--c-primary);}
.faq-row[open] .row-plus::before,.faq-row[open] .row-plus::after{background:var(--c-ink);}
.faq-row[open] .row-plus::after{transform:rotate(90deg);opacity:0;}
.row-body{
  padding:0 30px 24px 74px;
  font-size:15px;color:var(--c-muted);line-height:1.8;max-width:860px;
}
.row-body p:last-child{margin-bottom:0;}
.row-body .tip{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;
  color:var(--c-ink);background:rgba(255,138,61,.12);
  border:1px solid rgba(255,138,61,.35);
  border-radius:var(--r-pill);padding:4px 12px;margin-bottom:10px;
}
.row-body .tip i{color:var(--c-accent);}

/* ---------- 支持渠道 ---------- */
.support-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;}
.support-main{
  background:var(--c-ink);color:var(--c-ink-text);
  border-radius:var(--r-xl);overflow:hidden;display:flex;flex-direction:column;
  border:1px solid rgba(255,255,255,.06);
}
.support-main .img-box{position:relative;aspect-ratio:16/10;overflow:hidden;}
.support-main .img-box img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease;}
.support-main:hover .img-box img{transform:scale(1.03);}
.support-main .tag-on-img{
  position:absolute;left:16px;top:16px;
  background:var(--c-primary);color:var(--c-ink);
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:var(--r-pill);
}
.support-main .body{padding:26px 28px 30px;}
.support-main h3{color:#fff;font-size:20px;margin-bottom:10px;}
.support-main p{color:var(--c-ink-muted);font-size:14.5px;margin-bottom:0;}
.support-side{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:24px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.side-card:hover{transform:translateY(-2px);border-color:rgba(168,233,34,.45);box-shadow:var(--sh-2);}
.side-card .ic{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(168,233,34,.16);color:var(--c-ink);font-size:15px;margin-bottom:14px;
}
.side-card h4{font-size:17px;font-weight:600;margin-bottom:8px;}
.side-card p{font-size:14px;color:var(--c-muted);margin-bottom:12px;}
.side-card .more{
  font-size:13.5px;font-weight:600;color:var(--c-ink);display:inline-flex;align-items:center;gap:6px;
  border-bottom:1px solid var(--c-primary);padding-bottom:2px;
}
.side-card .more i{font-size:11px;transition:transform var(--ease);}
.side-card:hover .more i{transform:translateX(3px);}

/* ---------- 图文说明 ---------- */
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.guide-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-2);}
.guide-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.guide-media .badge-float{
  position:absolute;right:16px;bottom:16px;
  background:rgba(14,20,24,.88);color:#fff;font-size:13px;
  padding:8px 14px;border-radius:var(--r-pill);border:1px solid rgba(168,233,34,.4);
}
.guide-media .badge-float i{color:var(--c-primary);margin-right:6px;}
.check-list li{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--c-line);
  font-size:15px;color:var(--c-text);
}
.check-list li:last-child{border-bottom:0;}
.check-list .ck{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;
  background:var(--c-primary);color:var(--c-ink);
  display:grid;place-items:center;font-size:10px;margin-top:5px;
}
.check-list strong{font-weight:600;}

/* ---------- 留言表单 ---------- */
.form-panel{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-xl);padding:40px;box-shadow:var(--sh-1);
  max-width:720px;margin:0 auto;
}
.form-panel h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.form-panel .form-hint{font-size:14px;color:var(--c-muted);margin-bottom:26px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-text);margin-bottom:8px;}
.field .req{color:var(--c-accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--r-input);
  padding:12px 14px;background:var(--c-bg);color:var(--c-text);
  font-size:15px;outline:none;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{min-height:130px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  background:var(--c-surface);border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(168,233,34,.22);
}
.field input::placeholder,.field textarea::placeholder{color:#9AA6A0;}
.field .err-tip{display:none;font-size:13px;color:var(--c-accent);margin-top:6px;}
.field.has-error input,.field.has-error textarea{border-color:var(--c-accent);}
.field.has-error .err-tip{display:block;}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px;}
.btn-primary-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);
  background:var(--c-primary);color:var(--c-ink);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary-solid:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary-solid:active{background:var(--c-primary-press);transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  background:transparent;border:1px solid var(--c-line);color:var(--c-text);
  font-size:15px;font-weight:600;transition:all var(--ease);
}
.btn-ghost:hover{border-color:var(--c-ink);color:var(--c-ink);}
.btn-ghost.on-ink{border-color:rgba(255,255,255,.3);color:#fff;}
.btn-ghost.on-ink:hover{background:rgba(255,255,255,.08);border-color:rgba(168,233,34,.6);color:#fff;}
.form-tip{
  display:none;margin-top:18px;padding:12px 16px;border-radius:var(--r-input);
  background:rgba(168,233,34,.14);border:1px solid rgba(168,233,34,.5);
  color:var(--c-ink);font-size:14px;
}
.form-tip.is-show{display:block;}
.form-footnote{font-size:13px;color:var(--c-muted);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-ink);border-radius:var(--r-xl);
  padding:52px 56px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  border:1px solid rgba(255,255,255,.06);
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;
  border-radius:50%;background:radial-gradient(circle,rgba(168,233,34,.22),transparent 68%);
}
.cta-band .cta-text{position:relative;z-index:2;max-width:620px;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px);line-height:1.3;}
.cta-band p{color:var(--c-ink-muted);margin:12px 0 0;font-size:15px;}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--c-ink-muted);padding:72px 0 28px;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--c-ink-muted);max-width:320px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.14);color:var(--c-ink-text);font-size:14px;
  transition:all var(--ease);
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.footer-col h4{
  font-size:13px;letter-spacing:.08em;color:rgba(255,255,255,.55);
  font-weight:600;margin-bottom:18px;
}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:var(--c-ink-muted);}
.footer-col a:hover{color:var(--c-primary);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.42);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:1040;
  display:inline-flex;align-items:center;gap:10px;
  padding:0 22px;height:50px;border-radius:var(--r-pill);
  background:var(--c-ink);color:#fff;font-size:14px;font-weight:600;
  box-shadow:var(--sh-3);opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity 200ms ease,transform 200ms ease,visibility 200ms ease,background var(--ease);
}
.float-cta:hover{color:#fff;background:#1B2A32;}
.float-cta .dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-primary);
  box-shadow:0 0 0 4px rgba(168,233,34,.22);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .main-nav{gap:20px;}
  .quiet-link{display:none;}
}
@media (max-width:991px){
  .main-nav,.nav-search{display:none;}
  .nav-burger{display:inline-flex;}
  .header-inner{min-height:64px;}
  .section{padding:72px 0;}
  .support-grid{grid-template-columns:1fr;}
  .guide-grid{grid-template-columns:1fr;gap:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 34px;}
  .site-footer{margin-top:72px;}
}
@media (max-width:767px){
  .float-cta{display:none;}
  .page-hero{padding:48px 0 54px;}
  .hero-metrics{gap:18px;}
  .hero-metrics .metric{border-right:0;padding-right:0;margin-right:0;min-width:44%;}
  .faq-row summary{padding:16px 18px;gap:12px;}
  .row-desc{display:none;}
  .row-body{padding:0 18px 20px 56px;}
  .group-head{padding:18px 18px 8px;flex-wrap:wrap;}
  .group-head .g-note{display:none;}
  .support-side{grid-template-columns:1fr;grid-template-rows:auto;}
  .list-wrap{border-radius:var(--r-md);}
  .form-panel{padding:26px 20px;}
  .cta-band{padding:32px 22px;border-radius:var(--r-lg);}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .section{padding:60px 0;}
  .brand-name{font-size:15.5px;}
  .filter-pill{padding:7px 14px;font-size:13px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .page-hero h1{font-size:28px;}
}