/* roulang page: index */
:root{
  --pg-bg:#08171F;
  --pg-bg-2:#0A1E28;
  --pg-panel:#0F2733;
  --pg-panel-2:#12303D;
  --pg-accent:#2FD6C0;
  --pg-accent-dim:rgba(47,214,192,.12);
  --pg-accent-line:rgba(47,214,192,.40);
  --pg-signal:#F2A73B;
  --pg-signal-dim:rgba(242,167,59,.12);
  --pg-text:#E4EFF3;
  --pg-muted:#93AEB8;
  --pg-line:rgba(255,255,255,.08);
  --pg-line-strong:rgba(255,255,255,.16);
  --pg-radius:14px;
  --pg-radius-sm:10px;
  --pg-radius-lg:18px;
  --pg-shadow:0 18px 40px -20px rgba(0,0,0,.65);
  --pg-shadow-hover:0 24px 52px -22px rgba(0,0,0,.85);
  --pg-mono:ui-monospace,SFMono-Regular,"Roboto Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--pg-bg);
  color:var(--pg-text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:26px 26px;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;}
p{margin:0;}
.mono{font-family:var(--pg-mono);font-variant-numeric:tabular-nums;}

/* ---------- 侧栏 ---------- */
.pg-side{display:none;}
@media (min-width:1024px){
  .pg-side{
    display:flex;flex-direction:column;
    position:fixed;top:0;left:0;bottom:0;z-index:70;
    width:88px;padding:22px 12px;
    background:linear-gradient(180deg,#0A1F29 0%,#081720 100%);
    border-right:1px solid var(--pg-line);
  }
}
@media (min-width:1280px){
  .pg-side{width:248px;padding:26px 20px;}
}
.pg-brand{display:flex;align-items:center;gap:12px;padding:6px 6px 4px;}
.pg-brand-mark{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--pg-mono);font-size:15px;font-weight:700;letter-spacing:.02em;
  color:#062026;background:linear-gradient(140deg,var(--pg-accent) 0%,#1FA894 100%);
  box-shadow:0 0 18px rgba(47,214,192,.28);
}
.pg-brand-text{font-size:17px;font-weight:700;color:var(--pg-text);white-space:nowrap;}
@media (min-width:1024px) and (max-width:1279px){
  .pg-brand{justify-content:center;padding:6px 0;}
  .pg-brand-text{display:none;}
}
.pg-nav{margin-top:30px;display:flex;flex-direction:column;gap:6px;}
.pg-nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:12px 12px;border-radius:var(--pg-radius-sm);
  color:var(--pg-muted);font-size:15px;font-weight:500;
  transition:background .22s ease,color .22s ease;
}
.pg-nav-item i{font-size:16px;width:20px;text-align:center;flex:0 0 auto;}
.pg-nav-item:hover{background:rgba(255,255,255,.045);color:var(--pg-text);}
.pg-nav-item.is-active{background:rgba(47,214,192,.09);color:var(--pg-text);font-weight:600;}
.pg-nav-item.is-active::before{
  content:"";position:absolute;left:-12px;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--pg-accent);
}
@media (min-width:1024px) and (max-width:1279px){
  .pg-nav-item{justify-content:center;padding:12px 0;}
  .pg-nav-item span{position:absolute;left:64px;top:50%;transform:translateY(-50%) scale(.96);
    background:var(--pg-panel);border:1px solid var(--pg-line-strong);
    padding:6px 12px;border-radius:8px;font-size:13px;white-space:nowrap;
    opacity:0;pointer-events:none;transition:opacity .18s ease;}
  .pg-nav-item:hover span{opacity:1;}
  .pg-nav-item.is-active::before{left:-12px;}
}
.pg-side-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--pg-line);}
.pg-side-note{font-size:12px;line-height:1.7;color:var(--pg-muted);margin-bottom:12px;}
@media (min-width:1024px) and (max-width:1279px){
  .pg-side-note{display:none;}
  .pg-side-foot .pg-btn{padding:12px 0;justify-content:center;}
  .pg-side-foot .pg-btn span{display:none;}
}

/* ---------- 移动端顶栏与抽屉 ---------- */
.pg-mobile-bar{
  position:sticky;top:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 18px;
  background:rgba(8,23,31,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--pg-line);
}
@media (min-width:1024px){.pg-mobile-bar{display:none;}}
.pg-burger{
  width:42px;height:42px;border-radius:10px;
  background:rgba(255,255,255,.04);border:1px solid var(--pg-line-strong);
  color:var(--pg-text);font-size:17px;cursor:pointer;transition:.2s;
}
.pg-burger:hover{border-color:var(--pg-accent);color:var(--pg-accent);}
.pg-drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(6,18,24,.985);
  backdrop-filter:blur(10px);
  transform:translateX(100%);
  transition:transform .28s ease;
  display:flex;flex-direction:column;
  padding:20px 22px 28px;
  overflow-y:auto;
}
.pg-drawer.is-open{transform:translateX(0);}
.pg-drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--pg-line);}
.pg-drawer-close{
  width:40px;height:40px;border-radius:10px;background:transparent;
  border:1px solid var(--pg-line-strong);color:var(--pg-text);font-size:16px;cursor:pointer;
}
.pg-drawer-nav{margin-top:12px;display:flex;flex-direction:column;}
.pg-drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  font-size:18px;line-height:56px;color:var(--pg-muted);
  border-bottom:1px solid var(--pg-line);transition:.2s;
}
.pg-drawer-link i{font-size:14px;color:var(--pg-accent);}
.pg-drawer-link:hover,.pg-drawer-link.is-active{color:var(--pg-text);}
.pg-drawer-foot{margin-top:auto;padding-top:24px;}
@media (min-width:1024px){.pg-drawer{display:none;}}

/* ---------- 主区 ---------- */
.pg-main{position:relative;z-index:1;}
@media (min-width:1024px){.pg-main{margin-left:88px;}}
@media (min-width:1280px){.pg-main{margin-left:248px;}}
.pg-container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px;}
@media (min-width:1440px){.pg-container{max-width:1360px;padding:0 32px;}}
.pg-section{padding:48px 0;}
@media (min-width:640px){.pg-section{padding:64px 0;}}
@media (min-width:1024px){.pg-section{padding:88px 0;}}
.pg-section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px;}
.pg-eyebrow{
  display:inline-block;font-family:var(--pg-mono);font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--pg-accent);margin-bottom:10px;
}
.pg-h2{font-size:clamp(22px,2.6vw,34px);}
.pg-lead{color:var(--pg-muted);font-size:15px;line-height:1.85;max-width:640px;margin-top:12px;}

/* ---------- 组件 ---------- */
.pg-glass{
  position:relative;overflow:hidden;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--pg-radius);
  box-shadow:var(--pg-shadow);
  backdrop-filter:blur(14px);
}
.pg-glass::after{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.20),transparent);
}
.pg-card{
  display:block;padding:24px;
  transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease,background .24s ease;
}
.pg-card:hover{
  border-color:var(--pg-accent-line);
  transform:translateY(-2px);
  box-shadow:var(--pg-shadow-hover);
}
.pg-badge{
  display:inline-block;padding:5px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;
  color:var(--pg-accent);background:var(--pg-accent-dim);
  border:1px solid rgba(47,214,192,.22);
}
.pg-badge-signal{color:var(--pg-signal);background:var(--pg-signal-dim);border-color:rgba(242,167,59,.24);}
.pg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:10px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.pg-btn-primary{background:var(--pg-accent);color:#062026;}
.pg-btn-primary:hover{box-shadow:0 0 22px rgba(47,214,192,.45);transform:translateY(-1px);}
.pg-btn-ghost{background:transparent;border-color:var(--pg-line-strong);color:var(--pg-text);}
.pg-btn-ghost:hover{border-color:var(--pg-accent);color:var(--pg-accent);}
.pg-btn:focus-visible{outline:2px solid var(--pg-accent);outline-offset:2px;}
.pg-btn:active{transform:translateY(1px);}
.pg-btn-block{width:100%;}
.pg-link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--pg-accent);font-size:14px;font-weight:600;
}
.pg-link-arrow i{transition:transform .22s ease;}
.pg-link-arrow:hover i{transform:translateX(3px);}

/* ---------- Hero ---------- */
.pg-hero{padding:40px 0 8px;}
@media (min-width:1024px){.pg-hero{padding:72px 0 16px;}}
.pg-hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media (min-width:1024px){.pg-hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;}}
.pg-h1{font-size:clamp(30px,4.4vw,52px);line-height:1.2;margin:18px 0 18px;}
.pg-h1 em{font-style:normal;color:var(--pg-accent);}
.pg-hero-sub{color:var(--pg-muted);font-size:16px;line-height:1.9;max-width:560px;}
.pg-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.pg-trust{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;}
.pg-trust li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--pg-muted);}
.pg-trust i{color:var(--pg-accent);font-size:13px;}
.pg-hero-media{position:relative;border-radius:var(--pg-radius-lg);overflow:hidden;border:1px solid var(--pg-line-strong);}
.pg-hero-media img{width:100%;height:100%;min-height:280px;object-fit:cover;filter:brightness(.62) saturate(.9);transition:transform .5s ease;}
.pg-hero-media:hover img{transform:scale(1.02);}
.pg-hero-media::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(150deg,rgba(8,23,31,.72) 0%,rgba(8,23,31,.22) 60%,rgba(47,214,192,.16) 100%);
}
.pg-hero-float{
  position:absolute;right:18px;bottom:18px;z-index:2;
  padding:16px 20px;min-width:170px;border-radius:var(--pg-radius);
}
.pg-float-num{display:block;font-family:var(--pg-mono);font-size:34px;font-weight:700;color:var(--pg-signal);line-height:1.1;}
.pg-float-num span{font-size:16px;margin-left:2px;}
.pg-float-label{display:block;font-size:12px;color:var(--pg-muted);margin-top:6px;}

/* ---------- 指标 ---------- */
.pg-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
@media (min-width:1024px){.pg-stats{grid-template-columns:repeat(4,1fr);gap:22px;}}
.pg-stat{padding:22px;}
.pg-stat-num{font-family:var(--pg-mono);font-size:clamp(30px,4vw,42px);font-weight:700;color:var(--pg-signal);line-height:1.1;}
.pg-stat-num small{font-size:14px;color:var(--pg-muted);font-weight:500;margin-left:4px;}
.pg-stat-label{font-size:13px;color:var(--pg-muted);margin-top:10px;line-height:1.7;}
.pg-stat-bar{height:4px;border-radius:999px;background:rgba(255,255,255,.07);margin-top:14px;overflow:hidden;}
.pg-stat-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--pg-accent),rgba(47,214,192,.35));}

/* ---------- 服务矩阵 ---------- */
.pg-matrix{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:1024px){.pg-matrix{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:24px;}}
.pg-matrix-big{display:flex;flex-direction:column;overflow:hidden;}
.pg-matrix-big img{width:100%;height:210px;object-fit:cover;filter:brightness(.7);}
.pg-matrix-big-body{padding:26px;display:flex;flex-direction:column;flex:1;}
.pg-card-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--pg-accent-dim);color:var(--pg-accent);font-size:17px;
  border:1px solid rgba(47,214,192,.20);transition:background .22s ease,color .22s ease;
}
.pg-card:hover .pg-card-icon{background:rgba(47,214,192,.2);}
.pg-card-title{font-size:19px;margin-bottom:10px;}
.pg-card-text{font-size:14px;line-height:1.8;color:var(--pg-muted);}
.pg-matrix-small{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.pg-matrix-small{grid-template-columns:1fr 1fr;}}
.pg-matrix-small .pg-card{display:flex;flex-direction:column;gap:14px;height:100%;}
.pg-matrix-small .pg-link-arrow{margin-top:auto;}

/* ---------- 最新信息 ---------- */
.pg-news-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.pg-news-grid{grid-template-columns:1fr 1fr;gap:22px;}}
.pg-news-card{display:flex;flex-direction:column;overflow:hidden;}
.pg-news-media{height:170px;overflow:hidden;border-bottom:1px solid var(--pg-line);}
.pg-news-media img{width:100%;height:100%;object-fit:cover;filter:brightness(.72) saturate(.92);transition:transform .5s ease;}
.pg-news-card:hover .pg-news-media img{transform:scale(1.02);}
.pg-news-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.pg-news-title{font-size:17px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pg-news-sum{font-size:14px;color:var(--pg-muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pg-news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--pg-line);}
.pg-news-date{font-family:var(--pg-mono);font-size:12px;color:var(--pg-muted);}
@media (min-width:768px){
  .pg-news-card.is-feature{grid-column:1 / -1;flex-direction:row;}
  .pg-news-card.is-feature .pg-news-media{width:44%;height:auto;min-height:230px;border-bottom:0;border-right:1px solid var(--pg-line);}
  .pg-news-card.is-feature .pg-news-body{padding:28px;}
  .pg-news-card.is-feature .pg-news-title{font-size:22px;-webkit-line-clamp:3;}
}
.pg-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 22px;text-align:center;
}
.pg-empty i{font-size:26px;color:var(--pg-accent);}
.pg-empty p{color:var(--pg-muted);font-size:14px;}

/* ---------- 对比 ---------- */
.pg-compare{display:grid;grid-template-columns:1fr;gap:20px;align-items:stretch;}
@media (min-width:900px){.pg-compare{grid-template-columns:1fr 56px 1fr;gap:12px;}}
.pg-compare-col{padding:26px;}
.pg-compare-col.is-good{border-color:rgba(47,214,192,.28);}
.pg-compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
.pg-compare-col h3{font-size:18px;}
.pg-compare-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--pg-line);font-size:14px;color:var(--pg-muted);line-height:1.75;}
.pg-compare-list li:last-child{border-bottom:0;}
.pg-compare-list i{flex:0 0 auto;margin-top:5px;font-size:12px;}
.pg-compare-col.is-bad .pg-compare-list i{color:#7E97A1;}
.pg-compare-col.is-good .pg-compare-list i{color:var(--pg-accent);}
.pg-compare-sep{display:none;align-items:center;justify-content:center;color:var(--pg-accent);font-size:18px;}
@media (min-width:900px){.pg-compare-sep{display:flex;}}
.pg-compare-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;margin-top:18px;}
.pg-compare-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--pg-accent),rgba(47,214,192,.4));}

/* ---------- 流程 ---------- */
.pg-steps{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:640px){.pg-steps{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.pg-steps{grid-template-columns:repeat(4,1fr);gap:22px;}}
.pg-step{padding:24px;display:flex;flex-direction:column;gap:12px;}
.pg-step-num{font-family:var(--pg-mono);font-size:28px;font-weight:700;color:var(--pg-signal);line-height:1;}
.pg-step h3{font-size:17px;}
.pg-step p{font-size:14px;color:var(--pg-muted);line-height:1.8;}

/* ---------- FAQ ---------- */
.pg-faq{border-top:1px solid var(--pg-line);}
.pg-faq-item{border-bottom:1px solid var(--pg-line);}
.pg-faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;background:none;border:0;cursor:pointer;
  color:var(--pg-text);font-size:16px;font-weight:600;text-align:left;line-height:1.6;
  transition:color .2s ease;
}
.pg-faq-q:hover{color:var(--pg-accent);}
.pg-faq-q:focus-visible{outline:2px solid var(--pg-accent);outline-offset:3px;border-radius:6px;}
.pg-faq-icon{color:var(--pg-accent);font-size:14px;transition:transform .22s ease;flex:0 0 auto;}
.pg-faq-item.is-open .pg-faq-icon{transform:rotate(45deg);}
.pg-faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.pg-faq-a p{color:var(--pg-muted);font-size:14.5px;line-height:1.85;padding-bottom:22px;max-width:780px;}

/* ---------- 表单 ---------- */
.pg-contact{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:1024px){.pg-contact{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:44px;align-items:start;}}
.pg-contact-points{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.pg-contact-points li{display:flex;gap:10px;font-size:14px;color:var(--pg-muted);line-height:1.75;}
.pg-contact-points i{color:var(--pg-accent);margin-top:5px;font-size:12px;}
.pg-form{padding:26px;display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:640px){.pg-form{grid-template-columns:1fr 1fr;padding:30px;}.pg-field-full{grid-column:1 / -1;}}
.pg-field{display:flex;flex-direction:column;gap:8px;}
.pg-field label{font-size:13px;color:var(--pg-muted);letter-spacing:.01em;}
.pg-input{
  width:100%;padding:12px 14px;border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--pg-line-strong);
  color:var(--pg-text);font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.pg-input::placeholder{color:rgba(147,174,184,.65);}
.pg-input:focus{
  outline:none;border-color:var(--pg-accent);
  box-shadow:0 0 0 4px rgba(47,214,192,.14);
  background:rgba(255,255,255,.06);
}
select.pg-input{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--pg-muted) 50%),linear-gradient(135deg,var(--pg-muted) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
textarea.pg-input{min-height:110px;resize:vertical;}
.pg-form-note{grid-column:1 / -1;font-size:12.5px;color:var(--pg-muted);line-height:1.7;}

/* ---------- 页脚 ---------- */
.pg-footer{
  position:relative;z-index:1;
  margin-top:24px;padding:52px 0 26px;
  background:linear-gradient(180deg,rgba(10,30,40,.35) 0%,rgba(6,17,23,.9) 100%);
  border-top:1px solid var(--pg-line);
}
@media (min-width:1024px){.pg-footer{padding:68px 0 30px;}}
.pg-footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.pg-footer-grid{grid-template-columns:1fr 1fr;gap:36px;}}
@media (min-width:1024px){.pg-footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}}
.pg-footer-title{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--pg-text);}
.pg-footer-brand .pg-brand{padding:0;margin-bottom:16px;}
.pg-footer-desc{font-size:13.5px;color:var(--pg-muted);line-height:1.85;max-width:320px;}
.pg-footer-links{display:flex;flex-direction:column;gap:11px;}
.pg-footer-links a{font-size:14px;color:var(--pg-muted);transition:color .2s ease,padding-left .2s ease;}
.pg-footer-links a:hover{color:var(--pg-accent);padding-left:4px;}
.pg-footer-info{font-size:13.5px;color:var(--pg-muted);line-height:1.9;}
.pg-footer-info span{display:block;}
.pg-footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--pg-line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:var(--pg-muted);
}

/* ---------- 回到顶部 ---------- */
.pg-to-top{
  position:fixed;right:20px;bottom:26px;z-index:65;
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--pg-line-strong);
  color:var(--pg-text);cursor:pointer;
  backdrop-filter:blur(12px);
  opacity:0;pointer-events:none;
  transition:opacity .24s ease,border-color .24s ease,color .24s ease,transform .24s ease;
}
.pg-to-top.is-show{opacity:1;pointer-events:auto;}
.pg-to-top:hover{border-color:var(--pg-accent);color:var(--pg-accent);transform:translateY(-2px);}

/* roulang page: article */
:root{
    --pg-bg:#07161E;
    --pg-bg-2:#0A1E28;
    --pg-panel:#0F2733;
    --pg-panel-2:#122F3C;
    --pg-accent:#2FD6C0;
    --pg-accent-soft:rgba(47,214,192,.12);
    --pg-signal:#F2A73B;
    --pg-signal-soft:rgba(242,167,59,.12);
    --pg-text:#E4EFF3;
    --pg-body:#D6E5EB;
    --pg-muted:#93AEB8;
    --pg-line:rgba(255,255,255,.08);
    --pg-line-strong:rgba(255,255,255,.18);
    --pg-card:rgba(255,255,255,.04);
    --pg-radius:14px;
    --pg-radius-sm:10px;
    --pg-radius-lg:18px;
    --pg-shadow:0 18px 40px -20px rgba(0,0,0,.65);
    --pg-sidebar-w:248px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.9;
    color:var(--pg-body);
    background-color:var(--pg-bg);
    background-image:
      radial-gradient(900px 620px at 88% -12%, rgba(47,214,192,.09), transparent 62%),
      radial-gradient(760px 520px at -6% 34%, rgba(242,167,59,.055), transparent 60%),
      linear-gradient(180deg,#07161E 0%,#081A23 46%,#07161E 100%);
    background-attachment:fixed;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  h1,h2,h3,h4,p{margin:0;}
  ul,ol{margin:0;padding:0;}
  .pg-mono{font-family:ui-monospace,"Roboto Mono","SFMono-Regular",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;letter-spacing:.01em;}

  .pg-container{width:100%;max-width:1180px;margin:0 auto;padding:0 32px;}

  /* ---------- 顶部移动栏 ---------- */
  .pg-topbar{
    display:none;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    padding:12px 18px;
    position:sticky;
    top:0;
    z-index:70;
    background:rgba(7,22,30,.94);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--pg-line);
  }
  .pg-burger{
    width:42px;height:42px;border-radius:10px;
    background:rgba(255,255,255,.05);
    border:1px solid var(--pg-line-strong);
    color:var(--pg-text);
    display:grid;place-items:center;
    cursor:pointer;transition:border-color .2s,color .2s,background .2s;
  }
  .pg-burger:hover{border-color:var(--pg-accent);color:var(--pg-accent);}
  .pg-burger:focus-visible{outline:2px solid var(--pg-accent);outline-offset:2px;}

  /* ---------- 抽屉 ---------- */
  .pg-drawer{
    position:fixed;inset:0;z-index:90;
    display:flex;flex-direction:column;gap:20px;
    padding:22px;
    background:rgba(5,17,23,.98);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    transform:translateY(-102%);
    transition:transform .34s cubic-bezier(.4,0,.2,1);
    overflow-y:auto;
  }
  .pg-drawer.is-open{transform:translateY(0);}
  .pg-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-bottom:16px;border-bottom:1px solid var(--pg-line);}
  .pg-drawer-nav{display:flex;flex-direction:column;}
  .pg-drawer-nav a{
    display:flex;align-items:center;justify-content:space-between;
    font-size:18px;line-height:56px;
    color:var(--pg-text);
    border-bottom:1px solid var(--pg-line);
    transition:color .2s,padding-left .2s;
  }
  .pg-drawer-nav a i{color:var(--pg-muted);font-size:14px;}
  .pg-drawer-nav a:hover{color:var(--pg-accent);padding-left:6px;}
  .pg-drawer-nav a.is-active{color:var(--pg-accent);}

  /* ---------- 左侧竖栏 ---------- */
  .pg-sidebar{
    position:fixed;top:0;left:0;bottom:0;
    width:var(--pg-sidebar-w);
    display:flex;flex-direction:column;gap:22px;
    padding:26px 18px 24px;
    background:linear-gradient(180deg,#0B2029 0%,#081A22 100%);
    border-right:1px solid var(--pg-line);
    z-index:60;
    overflow-y:auto;
  }
  .pg-brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:18px;color:var(--pg-text);}
  .pg-brand-mark{
    width:38px;height:38px;flex:none;
    display:grid;place-items:center;
    border-radius:12px;
    background:linear-gradient(140deg,rgba(47,214,192,.24),rgba(47,214,192,.05));
    border:1px solid rgba(47,214,192,.35);
    color:var(--pg-accent);
    font-family:ui-monospace,"Roboto Mono",monospace;
    font-size:14px;font-weight:700;letter-spacing:.04em;
  }
  .pg-brand-text{white-space:nowrap;}
  .pg-side-title{
    font-size:12px;letter-spacing:.18em;text-transform:uppercase;
    color:var(--pg-muted);padding-left:12px;margin-bottom:4px;
  }
  .pg-nav{display:flex;flex-direction:column;gap:6px;}
  .pg-nav-item{
    position:relative;
    display:flex;align-items:center;gap:12px;
    padding:11px 12px;
    border-radius:var(--pg-radius-sm);
    color:var(--pg-muted);
    font-size:15px;
    transition:background .2s,color .2s;
  }
  .pg-nav-item i{width:18px;text-align:center;font-size:15px;}
  .pg-nav-item:hover{background:rgba(255,255,255,.055);color:var(--pg-text);}
  .pg-nav-item:focus-visible{outline:2px solid var(--pg-accent);outline-offset:2px;}
  .pg-nav-item.is-active{background:rgba(255,255,255,.065);color:var(--pg-text);}
  .pg-nav-item.is-active::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:3px;height:20px;border-radius:0 2px 2px 0;background:var(--pg-accent);
  }
  .pg-side-contact{
    margin-top:auto;
    display:flex;flex-direction:column;gap:8px;
    padding:16px 14px;
    border-radius:var(--pg-radius);
    background:var(--pg-card);
    border:1px solid var(--pg-line);
  }
  .pg-side-label{font-size:12px;color:var(--pg-muted);letter-spacing:.08em;}
  .pg-side-value{font-size:14px;color:var(--pg-text);}

  /* ---------- 按钮 ---------- */
  .pg-btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;
    border-radius:var(--pg-radius-sm);
    font-size:15px;font-weight:600;
    border:1px solid transparent;
    cursor:pointer;
    transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;
  }
  .pg-btn-primary{background:var(--pg-accent);color:#04231F;}
  .pg-btn-primary:hover{box-shadow:0 0 24px rgba(47,214,192,.35);transform:translateY(-1px);}
  .pg-btn-ghost{background:transparent;border-color:var(--pg-line-strong);color:var(--pg-text);}
  .pg-btn-ghost:hover{border-color:var(--pg-accent);color:var(--pg-accent);}
  .pg-btn-sm{padding:9px 16px;font-size:14px;}
  .pg-btn:focus-visible{outline:2px solid var(--pg-accent);outline-offset:3px;}
  .pg-btn:active{transform:translateY(1px);}

  .pg-textlink{
    display:inline-flex;align-items:center;gap:7px;
    color:var(--pg-accent);font-size:14px;font-weight:600;
    transition:gap .2s;
  }
  .pg-textlink:hover{gap:11px;}

  /* ---------- 主内容 ---------- */
  .pg-main{margin-left:var(--pg-sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
  .pg-content{flex:1 1 auto;}

  /* ---------- 面包屑 ---------- */
  .pg-crumb-wrap{padding:30px 0 0;}
  .pg-crumb{
    display:flex;align-items:center;flex-wrap:wrap;gap:8px;
    font-size:13px;color:var(--pg-muted);
  }
  .pg-crumb a{transition:color .2s;}
  .pg-crumb a:hover{color:var(--pg-accent);}
  .pg-crumb-sep{color:rgba(255,255,255,.22);}
  .pg-crumb-cur{color:var(--pg-muted);max-width:min(420px,60vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

  /* ---------- 文章头 ---------- */
  .pg-article-hero{
    position:relative;
    margin-top:22px;
    border-radius:var(--pg-radius-lg);
    border:1px solid var(--pg-line);
    overflow:hidden;
    background:linear-gradient(160deg,rgba(18,47,60,.92) 0%,rgba(7,22,30,.96) 100%);
  }
  .pg-article-hero-bg{
    position:absolute;inset:0;
    background-image:url("/assets/images/backpic/back-2.webp");
    background-size:cover;background-position:center;
    opacity:.16;
    pointer-events:none;
  }
  .pg-article-hero-grid{
    position:absolute;inset:0;
    background-image:radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
    background-size:26px 26px;
    opacity:.12;
    pointer-events:none;
  }
  .pg-article-hero-inner{position:relative;padding:40px 44px 42px;}
  .pg-badge{
    display:inline-flex;align-items:center;gap:7px;
    padding:5px 14px;
    border-radius:999px;
    font-size:12px;
    background:var(--pg-accent-soft);
    color:var(--pg-accent);
    border:1px solid rgba(47,214,192,.24);
  }
  .pg-badge-signal{background:var(--pg-signal-soft);color:var(--pg-signal);border-color:rgba(242,167,59,.28);}
  .pg-article-title{
    margin-top:18px;
    font-size:clamp(26px,3.4vw,42px);
    line-height:1.28;
    font-weight:700;
    color:var(--pg-text);
    letter-spacing:.01em;
    max-width:860px;
  }
  .pg-article-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
    margin-top:22px;
    padding-top:18px;
    border-top:1px solid var(--pg-line);
    font-size:13.5px;
    color:var(--pg-muted);
  }
  .pg-article-meta span{display:inline-flex;align-items:center;gap:8px;}
  .pg-article-meta i{color:var(--pg-accent);font-size:13px;}

  /* ---------- 正文 ---------- */
  .pg-article-body{
    max-width:820px;
    margin:44px auto 0;
    font-size:16.5px;
    line-height:1.95;
    color:var(--pg-body);
  }
  .pg-article-body p{margin:0 0 1.2em;}
  .pg-article-body h2{
    position:relative;
    margin:2em 0 .8em;
    padding-left:15px;
    font-size:clamp(20px,2.4vw,27px);
    line-height:1.4;
    font-weight:700;
    color:var(--pg-text);
  }
  .pg-article-body h2::before{
    content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--pg-accent);
  }
  .pg-article-body h3{
    margin:1.6em 0 .6em;
    font-size:19px;line-height:1.5;font-weight:600;color:var(--pg-text);
  }
  .pg-article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:600;color:var(--pg-text);}
  .pg-article-body ul,.pg-article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
  .pg-article-body ul{list-style:none;padding-left:2px;}
  .pg-article-body ul li{position:relative;padding-left:20px;margin:.45em 0;}
  .pg-article-body ul li::before{
    content:"";position:absolute;left:2px;top:.82em;width:6px;height:6px;border-radius:50%;background:var(--pg-accent);
  }
  .pg-article-body ol li{margin:.45em 0;}
  .pg-article-body ol li::marker{color:var(--pg-accent);font-weight:600;}
  .pg-article-body blockquote{
    margin:1.5em 0;
    padding:16px 22px;
    border-left:3px solid var(--pg-accent);
    border-radius:0 12px 12px 0;
    background:rgba(255,255,255,.045);
    color:var(--pg-muted);
  }
  .pg-article-body blockquote p:last-child{margin-bottom:0;}
  .pg-article-body img{
    margin:1.5em auto;
    border-radius:12px;
    border:1px solid var(--pg-line);
  }
  .pg-article-body figure{margin:1.5em 0;}
  .pg-article-body figcaption{
    margin-top:10px;text-align:center;font-size:13px;color:var(--pg-muted);
  }
  .pg-article-body a{
    color:var(--pg-accent);
    text-decoration:underline;
    text-underline-offset:3px;
    text-decoration-thickness:1px;
  }
  .pg-article-body a:hover{text-decoration-thickness:2px;}
  .pg-article-body strong{color:var(--pg-text);font-weight:600;}
  .pg-article-body hr{border:0;border-top:1px solid var(--pg-line);margin:2.2em 0;}
  .pg-article-body table{
    display:block;
    width:100%;
    overflow-x:auto;
    margin:1.5em 0;
    border-collapse:collapse;
    font-size:15px;
    background:var(--pg-card);
    border-radius:12px;
  }
  .pg-article-body th,.pg-article-body td{
    border:1px solid var(--pg-line);
    padding:11px 14px;
    text-align:left;
    white-space:nowrap;
  }
  .pg-article-body th{background:rgba(255,255,255,.055);color:var(--pg-text);font-weight:600;}
  .pg-article-body pre{
    margin:1.5em 0;
    padding:16px 18px;
    border-radius:12px;
    background:rgba(255,255,255,.05);
    border:1px solid var(--pg-line);
    overflow-x:auto;
    font-family:ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
    font-size:14px;
    line-height:1.75;
    color:#CFE3EA;
  }
  .pg-article-body code{
    font-family:ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
    font-size:.92em;
    padding:2px 6px;
    border-radius:6px;
    background:rgba(255,255,255,.075);
    color:#B9E9E0;
  }
  .pg-article-body pre code{background:none;padding:0;color:inherit;}

  /* ---------- 空态 ---------- */
  .pg-empty{
    display:flex;flex-direction:column;align-items:center;gap:14px;
    padding:56px 28px;
    border-radius:var(--pg-radius-lg);
    background:var(--pg-card);
    border:1px dashed var(--pg-line-strong);
    text-align:center;
  }
  .pg-empty i{font-size:28px;color:var(--pg-accent);}
  .pg-empty p{color:var(--pg-muted);font-size:15px;}

  /* ---------- 文末 ---------- */
  .pg-article-foot{
    max-width:820px;
    margin:34px auto 0;
    padding-top:22px;
    border-top:1px solid var(--pg-line);
  }
  .pg-related{margin-top:64px;}
  .pg-section-head{
    display:flex;align-items:flex-end;justify-content:space-between;gap:18px;
    margin-bottom:26px;
  }
  .pg-section-head h2{
    font-size:clamp(21px,2.4vw,28px);
    font-weight:700;color:var(--pg-text);line-height:1.35;
  }
  .pg-section-head p{margin-top:8px;font-size:14px;color:var(--pg-muted);}
  .pg-related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
  .pg-card{
    display:flex;flex-direction:column;
    border-radius:var(--pg-radius);
    background:var(--pg-card);
    border:1px solid var(--pg-line);
    overflow:hidden;
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    box-shadow:var(--pg-shadow);
    transition:transform .22s,border-color .22s,box-shadow .22s;
  }
  .pg-card:hover{
    transform:translateY(-3px);
    border-color:rgba(47,214,192,.42);
    box-shadow:0 24px 48px -22px rgba(0,0,0,.8);
  }
  .pg-card:focus-visible{outline:2px solid var(--pg-accent);outline-offset:3px;}
  .pg-card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--pg-panel);}
  .pg-card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
  .pg-card:hover .pg-card-thumb img{transform:scale(1.02);}
  .pg-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
  .pg-card-body h3{font-size:18px;font-weight:600;color:var(--pg-text);line-height:1.5;}
  .pg-card-body p{font-size:14px;line-height:1.75;color:var(--pg-muted);}
  .pg-card-foot{
    margin-top:auto;
    padding-top:14px;
    border-top:1px solid var(--pg-line);
  }

  /* ---------- CTA ---------- */
  .pg-cta{
    margin-top:60px;
    display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
    padding:34px 36px;
    border-radius:var(--pg-radius-lg);
    border:1px solid rgba(47,214,192,.24);
    background:linear-gradient(120deg,rgba(47,214,192,.10) 0%,rgba(242,167,59,.06) 100%);
  }
  .pg-cta h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;color:var(--pg-text);line-height:1.4;}
  .pg-cta p{margin-top:8px;font-size:14.5px;color:var(--pg-muted);max-width:620px;}

  /* ---------- 页脚 ---------- */
  .pg-footer{
    margin-top:84px;
    padding:56px 0 26px;
    border-top:1px solid var(--pg-line);
    background:linear-gradient(180deg,rgba(15,39,51,.55) 0%,rgba(6,18,24,.94) 100%);
  }
  .pg-footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.15fr;
    gap:34px;
  }
  .pg-footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:var(--pg-muted);max-width:330px;}
  .pg-footer-title{font-size:14px;font-weight:600;color:var(--pg-text);letter-spacing:.06em;margin-bottom:16px;}
  .pg-footer-links{display:flex;flex-direction:column;gap:11px;}
  .pg-footer-links a{font-size:14px;color:var(--pg-muted);transition:color .2s,padding-left .2s;}
  .pg-footer-links a:hover{color:var(--pg-accent);padding-left:4px;}
  .pg-footer-info{display:flex;flex-direction:column;gap:11px;font-size:14px;color:var(--pg-muted);}
  .pg-footer-bottom{
    margin-top:40px;padding-top:20px;
    border-top:1px solid var(--pg-line);
    display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
    font-size:13px;color:var(--pg-muted);
  }

  /* ---------- 回到顶部 ---------- */
  .pg-totop{
    position:fixed;right:24px;bottom:26px;z-index:65;
    width:46px;height:46px;border-radius:12px;
    display:grid;place-items:center;
    background:rgba(255,255,255,.05);
    border:1px solid var(--pg-line-strong);
    color:var(--pg-text);
    cursor:pointer;
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    opacity:0;visibility:hidden;
    transition:opacity .25s,visibility .25s,border-color .2s,color .2s,transform .2s;
  }
  .pg-totop.is-show{opacity:1;visibility:visible;}
  .pg-totop:hover{border-color:var(--pg-accent);color:var(--pg-accent);transform:translateY(-2px);}
  .pg-totop:focus-visible{outline:2px solid var(--pg-accent);outline-offset:3px;}

  /* ---------- 断点 ---------- */
  @media (max-width:1279px) and (min-width:1024px){
    :root{--pg-sidebar-w:76px;}
    .pg-sidebar{padding:22px 12px;align-items:center;}
    .pg-brand-text,.pg-nav-item span,.pg-side-contact,.pg-side-title{display:none;}
    .pg-nav-item{justify-content:center;padding:12px;}
  }

  @media (max-width:1023px){
    .pg-sidebar{display:none;}
    .pg-topbar{display:flex;}
    .pg-main{margin-left:0;}
    .pg-container{padding:0 22px;}
    .pg-article-hero-inner{padding:30px 26px 32px;}
    .pg-article-body{margin-top:34px;font-size:16px;}
    .pg-related-grid{grid-template-columns:repeat(2,1fr);}
    .pg-footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .pg-footer-desc{max-width:100%;}
  }

  @media (max-width:639px){
    .pg-container{padding:0 16px;}
    .pg-crumb-wrap{padding-top:22px;}
    .pg-article-hero-inner{padding:26px 20px 28px;}
    .pg-article-meta{gap:10px 16px;font-size:13px;}
    .pg-related-grid{grid-template-columns:1fr;}
    .pg-footer-grid{grid-template-columns:1fr;}
    .pg-cta{padding:26px 20px;}
    .pg-totop{right:16px;bottom:18px;}
    .pg-article-body{font-size:15.5px;line-height:1.9;}
  }

/* roulang page: category1 */
:root{
  --pg-bg:#07161E;
  --pg-bg-2:#0A1E28;
  --pg-panel:#0F2733;
  --pg-accent:#2FD6C0;
  --pg-accent-soft:rgba(47,214,192,.12);
  --pg-signal:#F2A73B;
  --pg-text:#E4EFF3;
  --pg-muted:#93AEB8;
  --pg-line:rgba(255,255,255,.08);
  --pg-line-strong:rgba(255,255,255,.16);
  --pg-radius:14px;
  --pg-radius-sm:10px;
  --pg-shadow:0 18px 40px -20px rgba(0,0,0,.65);
  --pg-sidebar:248px;
  --pg-container:1280px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--pg-text);
  background-color:var(--pg-bg);
  background-image:radial-gradient(rgba(47,214,192,.055) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--pg-accent);outline-offset:3px;}
::selection{background:rgba(47,214,192,.3);}

.pg-num{font-family:ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

/* ---------- 布局骨架 ---------- */
.pg-container{width:100%;max-width:var(--pg-container);margin:0 auto;padding:0 40px;}
.pg-main{margin-left:var(--pg-sidebar);}
.pg-section{padding:88px 0;}
.pg-section-tight{padding:56px 0;}

/* ---------- 左侧竖向导航 ---------- */
.pg-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--pg-sidebar);
  background:linear-gradient(180deg,#0A1E28 0%,#07161E 100%);
  border-right:1px solid var(--pg-line);
  padding:28px 20px 24px;
  display:flex;flex-direction:column;
  overflow-y:auto;
  z-index:60;
}
.pg-brand{display:flex;align-items:center;gap:12px;}
.pg-brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:grid;place-items:center;
  font-family:ui-monospace,"Roboto Mono",Menlo,monospace;
  font-size:15px;font-weight:700;letter-spacing:.5px;
  color:#04181A;
  background:linear-gradient(140deg,#2FD6C0 0%,#1B9E90 100%);
  box-shadow:0 0 0 1px rgba(47,214,192,.35),0 10px 22px -12px rgba(47,214,192,.75);
}
.pg-brand-text{font-size:17px;font-weight:700;letter-spacing:.6px;color:var(--pg-text);}
.pg-nav{display:flex;flex-direction:column;gap:6px;margin-top:36px;}
.pg-nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:var(--pg-radius-sm);
  font-size:14.5px;color:var(--pg-muted);
  border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.pg-nav-item i{width:18px;text-align:center;font-size:14px;}
.pg-nav-item:hover{background:rgba(255,255,255,.05);color:var(--pg-text);}
.pg-nav-item.is-active{
  background:rgba(47,214,192,.08);
  border-color:rgba(47,214,192,.22);
  color:var(--pg-text);
}
.pg-nav-item.is-active::before{
  content:"";position:absolute;left:-20px;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--pg-accent);
}
.pg-sidebar-foot{margin-top:auto;padding-top:26px;border-top:1px solid var(--pg-line);}
.pg-sidebar-info{display:flex;flex-direction:column;gap:8px;font-size:12.5px;color:var(--pg-muted);line-height:1.7;margin-bottom:16px;}
.pg-sidebar-info i{color:var(--pg-accent);font-size:11px;margin-right:6px;}

/* ---------- 移动端顶栏与抽屉 ---------- */
.pg-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:70;
  align-items:center;justify-content:space-between;padding:0 18px;
  background:rgba(7,22,30,.94);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--pg-line);
}
.pg-burger{
  width:42px;height:42px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--pg-line-strong);color:var(--pg-text);font-size:16px;
  transition:border-color .2s,color .2s;
}
.pg-burger:hover{border-color:var(--pg-accent);color:var(--pg-accent);}
.pg-drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(7,22,30,.98);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  transform:translateX(100%);
  transition:transform .3s ease;
  display:flex;flex-direction:column;padding:22px;
  overflow-y:auto;
}
.pg-drawer.is-open{transform:translateX(0);}
.pg-drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.pg-drawer-close{
  width:42px;height:42px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--pg-line-strong);color:var(--pg-text);font-size:16px;
}
.pg-drawer .pg-nav{margin-top:0;}
.pg-drawer .pg-nav-item{font-size:17px;line-height:1;padding:18px 16px;}
.pg-drawer .pg-nav-item.is-active::before{display:none;}
.pg-drawer-foot{margin-top:auto;padding-top:28px;}

/* ---------- 按钮 / 徽章 ---------- */
.pg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--pg-radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease,background .22s ease;
}
.pg-btn-primary{background:var(--pg-accent);color:#04181A;}
.pg-btn-primary:hover{box-shadow:0 0 24px rgba(47,214,192,.35);transform:translateY(-1px);}
.pg-btn-primary:active{transform:translateY(1px);}
.pg-btn-ghost{border-color:var(--pg-line-strong);color:var(--pg-text);}
.pg-btn-ghost:hover{border-color:var(--pg-accent);color:var(--pg-accent);}
.pg-btn-block{width:100%;}
.pg-link-more{
  display:inline-flex;align-items:center;gap:7px;font-size:14.5px;color:var(--pg-accent);
  transition:gap .22s ease;
}
.pg-link-more:hover{gap:11px;}

.pg-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;letter-spacing:.4px;
  background:var(--pg-accent-soft);color:var(--pg-accent);
  border:1px solid rgba(47,214,192,.22);
}
.pg-badge-signal{background:rgba(242,167,59,.12);color:var(--pg-signal);border-color:rgba(242,167,59,.24);}

/* ---------- 卡片 ---------- */
.pg-card{
  position:relative;overflow:hidden;
  background:rgba(255,255,255,.04);
  border:1px solid var(--pg-line);
  border-radius:var(--pg-radius);
  padding:26px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--pg-shadow);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.pg-card::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.32),transparent);
  pointer-events:none;
}
.pg-card-hover:hover{border-color:rgba(47,214,192,.4);box-shadow:0 22px 46px -20px rgba(0,0,0,.8);transform:translateY(-2px);}
.pg-card-title{font-size:19px;font-weight:700;letter-spacing:.3px;margin-bottom:10px;}
.pg-card-text{font-size:14.5px;line-height:1.78;color:var(--pg-muted);}

/* ---------- 通用标题 ---------- */
.pg-h1{font-size:clamp(30px,4.4vw,52px);line-height:1.2;font-weight:700;letter-spacing:.6px;margin:18px 0 20px;}
.pg-h2{font-size:clamp(22px,2.6vw,34px);line-height:1.3;font-weight:700;letter-spacing:.4px;margin-bottom:14px;}
.pg-h3{font-size:18px;font-weight:700;letter-spacing:.3px;margin-bottom:10px;}
.pg-sub{font-size:15.5px;line-height:1.88;color:var(--pg-muted);}
.pg-section-head{max-width:760px;margin-bottom:46px;}

/* ---------- 面包屑 ---------- */
.pg-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--pg-muted);}
.pg-crumb a:hover{color:var(--pg-accent);}
.pg-crumb .sep{opacity:.45;}
.pg-crumb .current{color:var(--pg-muted);}

/* ---------- Hero ---------- */
.pg-hero{padding:44px 0 72px;}
.pg-hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;margin-top:30px;}
.pg-hero-copy{max-width:620px;}
.pg-lead{font-size:16.5px;line-height:1.92;color:var(--pg-muted);max-width:560px;}
.pg-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.pg-hero-points{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:26px;border-top:1px solid var(--pg-line);}
.pg-hero-point{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--pg-muted);}
.pg-hero-point i{color:var(--pg-accent);font-size:13px;}
.pg-hero-visual{
  position:relative;border-radius:18px;overflow:hidden;
  border:1px solid var(--pg-line);box-shadow:var(--pg-shadow);
}
.pg-hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;filter:saturate(.88);}
.pg-hero-visual::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,22,30,.12) 0%,rgba(7,22,30,.78) 100%);
}
.pg-hero-float{
  position:absolute;left:20px;bottom:20px;right:20px;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 18px;border-radius:12px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.pg-hero-float strong{
  display:block;font-size:26px;line-height:1.1;color:var(--pg-signal);font-weight:700;
}
.pg-hero-float span{font-size:12.5px;color:var(--pg-muted);}

/* ---------- 指标带 ---------- */
.pg-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.pg-metric{padding:24px;}
.pg-metric-value{font-size:38px;line-height:1.1;font-weight:700;color:var(--pg-signal);}
.pg-metric-unit{font-size:15px;color:var(--pg-signal);margin-left:3px;font-weight:700;}
.pg-metric-label{font-size:13.5px;color:var(--pg-muted);margin-top:10px;line-height:1.7;}
.pg-metric-bar{height:2px;border-radius:2px;background:rgba(255,255,255,.08);margin-top:16px;overflow:hidden;}
.pg-metric-bar i{display:block;height:100%;border-radius:2px;background:linear-gradient(90deg,var(--pg-accent),rgba(47,214,192,.25));}

/* ---------- 时间轴 ---------- */
.pg-timeline{margin-top:10px;}
.pg-step{position:relative;padding-left:76px;padding-bottom:38px;}
.pg-step:last-child{padding-bottom:0;}
.pg-step::before{
  content:"";position:absolute;left:23px;top:50px;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(47,214,192,.42),rgba(255,255,255,.05));
}
.pg-step:last-child::before{display:none;}
.pg-step-no{
  position:absolute;left:0;top:0;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;
  font-family:ui-monospace,"Roboto Mono",Menlo,monospace;
  font-size:15px;font-weight:700;color:var(--pg-accent);
  background:rgba(47,214,192,.09);
  border:1px solid rgba(47,214,192,.3);
}
.pg-step-body{padding-top:2px;}
.pg-step-body h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.pg-step-body p{font-size:14.5px;line-height:1.82;color:var(--pg-muted);max-width:660px;}
.pg-step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.pg-tag{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
  font-size:12px;color:var(--pg-muted);
  border:1px solid var(--pg-line-strong);
  background:rgba(255,255,255,.03);
}

/* ---------- 场景卡 ---------- */
.pg-scene-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch;}
.pg-scene-side{display:grid;grid-template-rows:1fr 1fr;gap:22px;}
.pg-scene-card{padding:0;display:flex;flex-direction:column;}
.pg-scene-media{position:relative;overflow:hidden;}
.pg-scene-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.pg-scene-card:hover .pg-scene-media img{transform:scale(1.02);}
.pg-scene-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,22,30,0) 30%,rgba(7,22,30,.72) 100%);
}
.pg-scene-body{padding:20px 24px 24px;}
.pg-scene-body h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.pg-scene-body p{font-size:14px;line-height:1.78;color:var(--pg-muted);}
.pg-scene-feature .pg-scene-media img{aspect-ratio:16/10;}
.pg-scene-feature .pg-scene-body{padding:24px 26px 28px;}

/* ---------- 能力要点 ---------- */
.pg-split{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.pg-list li{
  position:relative;padding-left:20px;font-size:14.5px;line-height:1.8;color:var(--pg-muted);
  margin-bottom:12px;
}
.pg-list li:last-child{margin-bottom:0;}
.pg-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--pg-accent);
}

/* ---------- 对比 ---------- */
.pg-compare{display:grid;grid-template-columns:1fr 64px 1fr;align-items:stretch;}
.pg-compare-mid{display:grid;place-items:center;}
.pg-compare-mid span{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(47,214,192,.32);color:var(--pg-accent);
  background:rgba(47,214,192,.08);font-size:15px;
}
.pg-compare-item{display:flex;gap:11px;font-size:14.5px;line-height:1.8;margin-bottom:14px;color:var(--pg-muted);}
.pg-compare-item:last-child{margin-bottom:0;}
.pg-compare-item i{font-size:13px;margin-top:7px;}
.pg-compare-item.no i{color:rgba(255,255,255,.3);}
.pg-compare-item.yes{color:var(--pg-text);}
.pg-compare-item.yes i{color:var(--pg-accent);}
.pg-compare-head{display:flex;align-items:center;gap:10px;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--pg-line);}
.pg-compare-head h3{font-size:16px;font-weight:700;margin:0;}

/* ---------- FAQ ---------- */
.pg-faq{border-top:1px solid var(--pg-line);margin-top:8px;}
.pg-faq-item{border-bottom:1px solid var(--pg-line);}
.pg-faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;
  font-size:17px;font-weight:600;color:var(--pg-text);letter-spacing:.2px;
  transition:color .2s ease;
}
.pg-faq-q:hover{color:var(--pg-accent);}
.pg-faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--pg-line-strong);color:var(--pg-accent);font-size:12px;
  transition:transform .22s ease,border-color .22s ease;
}
.pg-faq-item.is-open .pg-faq-icon{transform:rotate(45deg);border-color:rgba(47,214,192,.5);}
.pg-faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.pg-faq-a-inner{padding:0 60px 24px 0;font-size:14.5px;line-height:1.9;color:var(--pg-muted);max-width:780px;}

/* ---------- 底部转化条 ---------- */
.pg-cta{
  border-radius:18px;padding:48px;
  border:1px solid rgba(47,214,192,.2);
  background:linear-gradient(135deg,rgba(47,214,192,.1) 0%,rgba(15,39,51,.7) 100%);
  display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center;
}
.pg-cta h2{font-size:clamp(21px,2.2vw,28px);line-height:1.35;font-weight:700;margin-bottom:14px;}
.pg-cta p{font-size:15px;line-height:1.85;color:var(--pg-muted);max-width:560px;}
.pg-cta-side{display:flex;flex-direction:column;gap:12px;}
.pg-cta-note{font-size:12.5px;color:var(--pg-muted);text-align:center;}

/* ---------- 页脚 ---------- */
.pg-footer{
  margin-left:var(--pg-sidebar);
  border-top:1px solid var(--pg-line);
  background:rgba(10,30,40,.72);
  padding:60px 0 26px;
}
.pg-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.pg-footer-brand .pg-brand{margin-bottom:16px;}
.pg-footer-desc{font-size:14px;line-height:1.82;color:var(--pg-muted);max-width:320px;}
.pg-footer-title{font-size:14px;font-weight:700;letter-spacing:.6px;margin-bottom:16px;color:var(--pg-text);}
.pg-footer-links{display:flex;flex-direction:column;gap:11px;}
.pg-footer-links a{font-size:14px;color:var(--pg-muted);transition:color .2s ease;}
.pg-footer-links a:hover{color:var(--pg-accent);}
.pg-footer-info{display:flex;flex-direction:column;gap:11px;font-size:13.5px;color:var(--pg-muted);line-height:1.7;}
.pg-footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--pg-line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--pg-muted);
}

/* ---------- 回到顶部 ---------- */
.pg-totop{
  position:fixed;right:26px;bottom:26px;width:46px;height:46px;border-radius:12px;
  display:grid;place-items:center;z-index:80;
  background:rgba(255,255,255,.06);border:1px solid var(--pg-line);
  color:var(--pg-muted);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease,border-color .25s ease,color .25s ease;
}
.pg-totop.is-show{opacity:1;visibility:visible;}
.pg-totop:hover{border-color:var(--pg-accent);color:var(--pg-accent);}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  :root{--pg-container:1360px;}
  .pg-hero{padding:60px 0 88px;}
}
@media (max-width:1279px){
  .pg-container{padding:0 32px;}
  .pg-hero-grid{gap:38px;}
}
@media (max-width:1023px){
  .pg-sidebar{display:none;}
  .pg-topbar{display:flex;}
  .pg-main{margin-left:0;padding-top:64px;}
  .pg-footer{margin-left:0;}
  .pg-hero{padding:36px 0 56px;}
  .pg-hero-grid{grid-template-columns:1fr;gap:34px;}
  .pg-hero-copy{max-width:none;}
  .pg-section{padding:64px 0;}
  .pg-section-tight{padding:44px 0;}
  .pg-metrics{grid-template-columns:repeat(2,1fr);}
  .pg-scene-grid{grid-template-columns:1fr;}
  .pg-scene-side{grid-template-rows:auto auto;}
  .pg-split{grid-template-columns:1fr;}
  .pg-compare{grid-template-columns:1fr;gap:26px;}
  .pg-compare-mid{display:none;}
  .pg-cta{grid-template-columns:1fr;padding:36px;}
  .pg-footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  .pg-container{padding:0 20px;}
  .pg-section{padding:52px 0;}
  .pg-metrics{grid-template-columns:1fr 1fr;gap:16px;}
  .pg-metric{padding:20px;}
  .pg-metric-value{font-size:30px;}
  .pg-card{padding:22px;}
  .pg-step{padding-left:64px;}
  .pg-step-no{width:40px;height:40px;font-size:14px;}
  .pg-step::before{left:20px;top:44px;}
  .pg-faq-a-inner{padding-right:0;}
  .pg-footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .pg-metrics{grid-template-columns:1fr;}
  .pg-hero-actions .pg-btn{width:100%;}
  .pg-hero-points{gap:16px;flex-direction:column;}
  .pg-cta{padding:28px 22px;}
  .pg-footer-grid{grid-template-columns:1fr;}
  .pg-totop{right:16px;bottom:16px;}
}

/* roulang page: category2 */
:root{
    --pg-bg:#07161E;
    --pg-bg-deep:#05121A;
    --pg-panel:#0F2733;
    --pg-panel-2:#12303D;
    --pg-accent:#2FD6C0;
    --pg-accent-soft:rgba(47,214,192,.12);
    --pg-signal:#F2A73B;
    --pg-signal-soft:rgba(242,167,59,.12);
    --pg-text:#E4EFF3;
    --pg-muted:#93AEB8;
    --pg-line:rgba(255,255,255,.08);
    --pg-line-strong:rgba(255,255,255,.16);
    --pg-radius:14px;
    --pg-radius-sm:10px;
    --pg-shadow:0 18px 40px -20px rgba(0,0,0,.65);
    --pg-sidebar-w:248px;
    --pg-mono:ui-monospace,"SFMono-Regular","Roboto Mono","JetBrains Mono",Menlo,Consolas,monospace;
    --pg-sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:
      radial-gradient(1100px 620px at 82% -8%, rgba(47,214,192,.10), transparent 62%),
      radial-gradient(760px 480px at 6% 12%, rgba(242,167,59,.06), transparent 60%),
      linear-gradient(180deg,var(--pg-bg) 0%, var(--pg-bg-deep) 100%);
    background-attachment:fixed;
    color:var(--pg-text);
    font-family:var(--pg-sans);
    font-size:16px;
    line-height:1.9;
    font-weight:400;
    min-height:100vh;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:
      radial-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
      linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
    background-size:22px 22px, 88px 88px, 88px 88px;
    opacity:.85;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul{list-style:none;padding:0;}
  :focus-visible{outline:2px solid var(--pg-accent);outline-offset:2px;border-radius:6px;}

  .pg-container{
    width:100%;
    max-width:1280px;
    margin:0 auto;
    padding:0 24px;
    position:relative;
    z-index:1;
  }
  @media (min-width:1440px){
    .pg-container{max-width:1360px;}
  }

  /* ---------- 侧栏 ---------- */
  .pg-sidebar{
    display:none;
    position:fixed;
    left:0;top:0;
    width:var(--pg-sidebar-w);
    height:100vh;
    flex-direction:column;
    padding:26px 18px 22px;
    background:linear-gradient(180deg, rgba(15,39,51,.94), rgba(7,22,30,.96));
    border-right:1px solid var(--pg-line);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    z-index:60;
  }
  .pg-brand{
    display:flex;
    align-items:center;
    gap:10px;
    padding:6px 6px 18px;
    border-bottom:1px solid var(--pg-line);
  }
  .pg-brand-mark{
    flex:0 0 auto;
    width:38px;height:38px;
    display:grid;place-items:center;
    border-radius:11px;
    background:linear-gradient(150deg, rgba(47,214,192,.22), rgba(47,214,192,.05));
    border:1px solid rgba(47,214,192,.42);
    color:var(--pg-accent);
    font-family:var(--pg-mono);
    font-weight:700;
    font-size:14px;
    letter-spacing:.5px;
  }
  .pg-brand-text{
    font-size:17px;
    font-weight:700;
    letter-spacing:.6px;
    white-space:nowrap;
  }
  .pg-nav{
    display:flex;
    flex-direction:column;
    gap:6px;
    margin-top:20px;
    flex:1 1 auto;
  }
  .pg-nav-item{
    position:relative;
    display:flex;
    align-items:center;
    gap:12px;
    padding:12px 12px;
    border-radius:var(--pg-radius-sm);
    color:var(--pg-muted);
    font-size:15px;
    line-height:1.4;
    transition:background .22s ease, color .22s ease, transform .22s ease;
  }
  .pg-nav-item i{
    width:20px;
    text-align:center;
    font-size:15px;
    color:inherit;
  }
  .pg-nav-item span{white-space:nowrap;}
  .pg-nav-item:hover{
    background:rgba(255,255,255,.06);
    color:var(--pg-text);
  }
  .pg-nav-item.is-active{
    background:rgba(255,255,255,.06);
    color:var(--pg-text);
    font-weight:600;
  }
  .pg-nav-item.is-active::before{
    content:"";
    position:absolute;
    left:0;top:50%;
    transform:translateY(-50%);
    width:3px;height:22px;
    border-radius:999px;
    background:var(--pg-accent);
    box-shadow:0 0 12px rgba(47,214,192,.6);
  }
  .pg-sidebar-foot{
    margin-top:18px;
    padding-top:18px;
    border-top:1px solid var(--pg-line);
    display:flex;
    flex-direction:column;
    gap:10px;
  }
  .pg-sidebar-foot .pg-foot-line{
    font-size:13px;
    color:var(--pg-muted);
    line-height:1.7;
  }
  .pg-sidebar-foot .pg-foot-line b{
    color:var(--pg-text);
    font-weight:600;
    font-family:var(--pg-mono);
    letter-spacing:.4px;
  }

  /* ---------- 顶部条（移动 / 平板） ---------- */
  .pg-topbar{
    display:flex;
    position:sticky;
    top:0;
    z-index:70;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    padding:14px 18px;
    background:rgba(7,22,30,.92);
    border-bottom:1px solid var(--pg-line);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
  }
  .pg-topbar .pg-brand{padding:0;border-bottom:0;}
  .pg-burger{
    width:44px;height:44px;
    display:grid;place-items:center;
    border-radius:var(--pg-radius-sm);
    background:rgba(255,255,255,.05);
    border:1px solid var(--pg-line-strong);
    color:var(--pg-text);
    font-size:17px;
    cursor:pointer;
    transition:border-color .22s ease, color .22s ease, background .22s ease;
  }
  .pg-burger:hover{border-color:var(--pg-accent);color:var(--pg-accent);}

  .pg-drawer{
    position:fixed;
    inset:0;
    z-index:90;
    background:rgba(5,18,26,.98);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    display:flex;
    flex-direction:column;
    padding:20px 20px 26px;
    transform:translateX(100%);
    opacity:0;
    visibility:hidden;
    transition:transform .3s ease, opacity .3s ease, visibility .3s;
  }
  .pg-drawer.is-open{transform:translateX(0);opacity:1;visibility:visible;}
  .pg-drawer-head{
    display:flex;align-items:center;justify-content:space-between;
    padding-bottom:16px;border-bottom:1px solid var(--pg-line);
  }
  .pg-drawer-close{
    width:42px;height:42px;display:grid;place-items:center;
    border-radius:var(--pg-radius-sm);
    background:rgba(255,255,255,.05);
    border:1px solid var(--pg-line-strong);
    color:var(--pg-text);
    cursor:pointer;
  }
  .pg-drawer .pg-nav{margin-top:14px;gap:2px;}
  .pg-drawer .pg-nav-item{
    font-size:18px;
    padding:15px 12px;
    border-bottom:1px solid var(--pg-line);
    border-radius:0;
    justify-content:space-between;
  }
  .pg-drawer .pg-nav-item::after{
    content:"\f105";
    font-family:"Font Awesome 6 Free";
    font-weight:900;
    font-size:14px;
    color:var(--pg-muted);
  }
  .pg-drawer .pg-nav-item.is-active::before{display:none;}
  .pg-drawer-cta{margin-top:auto;padding-top:20px;}

  .pg-page{position:relative;z-index:1;}

  @media (min-width:1024px){
    .pg-sidebar{display:flex;}
    .pg-topbar{display:none;}
    .pg-page{padding-left:var(--pg-sidebar-w);}
  }
  @media (min-width:1024px) and (max-width:1279px){
    :root{--pg-sidebar-w:76px;}
    .pg-sidebar{padding:22px 12px;}
    .pg-brand{justify-content:center;padding:4px 0 16px;}
    .pg-brand-text{display:none;}
    .pg-nav-item{justify-content:center;padding:13px 0;}
    .pg-nav-item span{display:none;}
    .pg-sidebar-foot{display:none;}
  }

  /* ---------- 通用组件 ---------- */
  .pg-badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 13px;
    border-radius:999px;
    font-size:12px;
    letter-spacing:.6px;
    background:var(--pg-accent-soft);
    color:var(--pg-accent);
    border:1px solid rgba(47,214,192,.28);
  }
  .pg-badge.is-signal{
    background:var(--pg-signal-soft);
    color:var(--pg-signal);
    border-color:rgba(242,167,59,.3);
  }
  .pg-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:13px 26px;
    border-radius:var(--pg-radius-sm);
    font-size:15px;
    font-weight:600;
    letter-spacing:.4px;
    border:1px solid transparent;
    cursor:pointer;
    transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
  }
  .pg-btn-primary{
    background:var(--pg-accent);
    color:#062026;
  }
  .pg-btn-primary:hover{
    transform:translateY(-1px);
    box-shadow:0 0 22px rgba(47,214,192,.34);
  }
  .pg-btn-primary:active{transform:translateY(0);}
  .pg-btn-ghost{
    background:transparent;
    color:var(--pg-text);
    border-color:var(--pg-line-strong);
  }
  .pg-btn-ghost:hover{
    border-color:var(--pg-accent);
    color:var(--pg-accent);
    transform:translateY(-1px);
  }
  .pg-link-arrow{
    display:inline-flex;
    align-items:center;
    gap:6px;
    color:var(--pg-accent);
    font-size:14px;
    font-weight:600;
  }
  .pg-link-arrow i{transition:transform .22s ease;}
  .pg-link-arrow:hover i{transform:translateX(3px);}

  .pg-card{
    position:relative;
    background:rgba(255,255,255,.04);
    border:1px solid var(--pg-line-strong);
    border-radius:var(--pg-radius);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--pg-shadow);
    overflow:hidden;
    transition:border-color .24s ease, box-shadow .24s ease, transform .24s ease;
  }
  .pg-card::before{
    content:"";
    position:absolute;
    inset:0 0 auto 0;
    height:1px;
    background:linear-gradient(90deg, transparent, rgba(255,255,255,.24), transparent);
  }
  .pg-card:hover{
    border-color:rgba(47,214,192,.42);
    box-shadow:0 22px 46px -22px rgba(0,0,0,.8);
  }
  .pg-card-pad{padding:26px;}

  .pg-section{padding:76px 0;}
  @media (max-width:1023px){.pg-section{padding:60px 0;}}
  @media (max-width:639px){.pg-section{padding:46px 0;}}

  .pg-sec-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:34px;
    flex-wrap:wrap;
  }
  .pg-sec-title{
    font-size:clamp(22px,2.6vw,34px);
    line-height:1.28;
    font-weight:700;
    letter-spacing:.4px;
  }
  .pg-sec-sub{
    margin-top:10px;
    font-size:15px;
    color:var(--pg-muted);
    line-height:1.85;
    max-width:640px;
  }
  .pg-eyebrow{
    display:block;
    font-family:var(--pg-mono);
    font-size:12px;
    letter-spacing:2px;
    color:var(--pg-accent);
    text-transform:uppercase;
    margin-bottom:12px;
    opacity:.9;
  }

  /* ---------- 面包屑 ---------- */
  .pg-crumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--pg-muted);
    padding:26px 0 8px;
  }
  .pg-crumb a{color:var(--pg-muted);transition:color .2s ease;}
  .pg-crumb a:hover{color:var(--pg-accent);}
  .pg-crumb .sep{opacity:.45;}
  .pg-crumb .now{color:var(--pg-text);}

  /* ---------- Hero ---------- */
  .pg-hero{
    position:relative;
    padding:22px 0 70px;
    overflow:hidden;
  }
  .pg-hero-grid{
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:48px;
    align-items:center;
  }
  @media (max-width:1023px){
    .pg-hero-grid{grid-template-columns:1fr;gap:34px;}
  }
  .pg-hero h1{
    font-size:clamp(30px,4.4vw,52px);
    line-height:1.2;
    font-weight:700;
    letter-spacing:.5px;
    margin:18px 0 18px;
  }
  .pg-hero h1 em{
    font-style:normal;
    color:var(--pg-accent);
  }
  .pg-hero-lead{
    font-size:16px;
    line-height:1.95;
    color:var(--pg-muted);
    max-width:620px;
  }
  .pg-hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    margin-top:28px;
  }
  .pg-facts{
    display:flex;
    flex-wrap:wrap;
    gap:12px 26px;
    margin-top:30px;
    padding-top:22px;
    border-top:1px solid var(--pg-line);
  }
  .pg-facts li{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--pg-muted);
  }
  .pg-facts i{color:var(--pg-accent);font-size:13px;}

  .pg-hero-media{
    position:relative;
    border-radius:18px;
    overflow:hidden;
    border:1px solid var(--pg-line-strong);
    box-shadow:var(--pg-shadow);
  }
  .pg-hero-media img{
    width:100%;
    height:400px;
    object-fit:cover;
    transform:scale(1.01);
    transition:transform .5s ease;
  }
  .pg-hero-media:hover img{transform:scale(1.035);}
  .pg-hero-media::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(200deg, rgba(7,22,30,.14), rgba(7,22,30,.86));
  }
  .pg-hero-float{
    position:absolute;
    left:20px;bottom:20px;right:20px;
    z-index:2;
    padding:16px 18px;
    border-radius:12px;
    background:rgba(9,26,35,.72);
    border:1px solid var(--pg-line-strong);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    flex-wrap:wrap;
  }
  .pg-hero-float .k{
    font-size:12px;
    color:var(--pg-muted);
    letter-spacing:.8px;
  }
  .pg-hero-float .v{
    font-family:var(--pg-mono);
    font-variant-numeric:tabular-nums;
    font-size:22px;
    color:var(--pg-signal);
    font-weight:700;
    line-height:1.3;
  }

  /* ---------- 指标带 ---------- */
  .pg-metrics{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:22px;
  }
  .pg-metric{
    padding:24px 22px;
    border-radius:var(--pg-radius);
    background:rgba(255,255,255,.04);
    border:1px solid var(--pg-line-strong);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    transition:border-color .24s ease, transform .24s ease;
  }
  .pg-metric:hover{border-color:rgba(47,214,192,.4);transform:translateY(-2px);}
  .pg-metric .num{
    font-family:var(--pg-mono);
    font-variant-numeric:tabular-nums;
    font-size:clamp(30px,3.4vw,42px);
    font-weight:700;
    line-height:1.1;
    color:var(--pg-signal);
    letter-spacing:-.5px;
  }
  .pg-metric .num small{font-size:15px;margin-left:4px;color:var(--pg-muted);font-weight:500;}
  .pg-metric .cap{
    margin-top:10px;
    font-size:13px;
    color:var(--pg-muted);
    line-height:1.75;
  }
  .pg-metric .bar{
    margin-top:16px;
    height:3px;
    border-radius:999px;
    background:rgba(255,255,255,.08);
    overflow:hidden;
  }
  .pg-metric .bar i{
    display:block;
    height:100%;
    border-radius:999px;
    background:linear-gradient(90deg,var(--pg-accent),rgba(47,214,192,.35));
  }
  @media (max-width:1023px){
    .pg-metrics{grid-template-columns:repeat(2,1fr);}
  }
  @media (max-width:519px){
    .pg-metrics{grid-template-columns:1fr;gap:16px;}
  }

  /* ---------- 主内容 + 数据侧栏 ---------- */
  .pg-split{
    display:grid;
    grid-template-columns:minmax(0,1fr) 320px;
    gap:34px;
    align-items:start;
  }
  @media (max-width:1023px){
    .pg-split{grid-template-columns:1fr;}
  }
  .pg-figure{
    border-radius:var(--pg-radius);
    overflow:hidden;
    border:1px solid var(--pg-line-strong);
    box-shadow:var(--pg-shadow);
    position:relative;
  }
  .pg-figure img{
    width:100%;
    height:320px;
    object-fit:cover;
    transition:transform .5s ease;
  }
  .pg-figure:hover img{transform:scale(1.02);}
  .pg-figure figcaption{
    position:absolute;
    left:0;right:0;bottom:0;
    padding:22px 24px;
    font-size:14px;
    color:var(--pg-text);
    background:linear-gradient(180deg, transparent, rgba(5,18,26,.92));
    line-height:1.7;
  }

  .pg-points{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:22px;
    margin-top:28px;
  }
  @media (max-width:719px){
    .pg-points{grid-template-columns:1fr;}
  }
  .pg-point{
    padding:22px;
    border-radius:var(--pg-radius-sm);
    background:rgba(255,255,255,.035);
    border:1px solid var(--pg-line);
    transition:border-color .24s ease, background .24s ease;
  }
  .pg-point:hover{border-color:rgba(47,214,192,.4);background:rgba(255,255,255,.055);}
  .pg-point h3{
    font-size:18px;
    font-weight:600;
    line-height:1.5;
    display:flex;
    align-items:center;
    gap:10px;
  }
  .pg-point h3 i{color:var(--pg-accent);font-size:15px;}
  .pg-point p{
    margin-top:10px;
    font-size:14px;
    line-height:1.8;
    color:var(--pg-muted);
  }

  .pg-panel{
    position:sticky;
    top:24px;
    padding:24px 22px;
    border-radius:var(--pg-radius);
    background:rgba(15,39,51,.62);
    border:1px solid var(--pg-line-strong);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--pg-shadow);
  }
  .pg-panel-title{
    font-size:15px;
    font-weight:600;
    letter-spacing:.6px;
    display:flex;
    align-items:center;
    gap:9px;
    padding-bottom:14px;
    border-bottom:1px solid var(--pg-line);
  }
  .pg-panel-title i{color:var(--pg-accent);}
  .pg-panel-list{margin-top:6px;}
  .pg-panel-list li{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:12px 0;
    border-bottom:1px solid var(--pg-line);
    font-size:14px;
  }
  .pg-panel-list li:last-child{border-bottom:0;}
  .pg-panel-list .label{color:var(--pg-muted);}
  .pg-panel-list .val{
    font-family:var(--pg-mono);
    font-variant-numeric:tabular-nums;
    color:var(--pg-text);
    font-weight:600;
  }
  .pg-panel-list .val.hot{color:var(--pg-signal);}
  .pg-panel-note{
    margin-top:16px;
    font-size:13px;
    color:var(--pg-muted);
    line-height:1.8;
  }
  .pg-panel .pg-btn{width:100%;margin-top:18px;}

  /* ---------- 场景图文交错 ---------- */
  .pg-alter{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:46px;
    align-items:center;
    margin-top:56px;
  }
  .pg-alter:first-of-type{margin-top:0;}
  .pg-alter.reverse .pg-alter-media{order:2;}
  @media (max-width:900px){
    .pg-alter{grid-template-columns:1fr;gap:26px;margin-top:44px;}
    .pg-alter.reverse .pg-alter-media{order:0;}
  }
  .pg-alter-media{
    border-radius:var(--pg-radius);
    overflow:hidden;
    border:1px solid var(--pg-line-strong);
    box-shadow:var(--pg-shadow);
  }
  .pg-alter-media img{width:100%;height:290px;object-fit:cover;transition:transform .5s ease;}
  .pg-alter-media:hover img{transform:scale(1.02);}
  .pg-alter h3{
    font-size:clamp(19px,2.1vw,24px);
    font-weight:700;
    line-height:1.45;
    margin-bottom:14px;
  }
  .pg-alter p{
    font-size:15px;
    color:var(--pg-muted);
    line-height:1.9;
  }
  .pg-tick{
    margin-top:20px;
    display:grid;
    gap:12px;
  }
  .pg-tick li{
    display:flex;
    gap:10px;
    font-size:14px;
    color:var(--pg-text);
    line-height:1.75;
  }
  .pg-tick i{color:var(--pg-accent);margin-top:5px;font-size:13px;}

  /* ---------- 步骤 ---------- */
  .pg-steps{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:22px;
    position:relative;
  }
  .pg-steps::before{
    content:"";
    position:absolute;
    left:4%;right:4%;top:34px;
    height:1px;
    background:linear-gradient(90deg, rgba(47,214,192,.05), rgba(47,214,192,.42), rgba(47,214,192,.05));
  }
  @media (max-width:1023px){
    .pg-steps{grid-template-columns:repeat(2,1fr);}
    .pg-steps::before{display:none;}
  }
  @media (max-width:519px){
    .pg-steps{grid-template-columns:1fr;}
  }
  .pg-step{
    position:relative;
    padding:24px 22px;
    border-radius:var(--pg-radius);
    background:rgba(255,255,255,.04);
    border:1px solid var(--pg-line-strong);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    transition:border-color .24s ease, transform .24s ease;
  }
  .pg-step:hover{border-color:rgba(47,214,192,.42);transform:translateY(-2px);}
  .pg-step .idx{
    display:inline-grid;
    place-items:center;
    width:38px;height:38px;
    border-radius:10px;
    font-family:var(--pg-mono);
    font-weight:700;
    font-size:14px;
    color:var(--pg-accent);
    background:rgba(47,214,192,.12);
    border:1px solid rgba(47,214,192,.32);
  }
  .pg-step h3{font-size:18px;font-weight:600;margin:16px 0 8px;line-height:1.5;}
  .pg-step p{font-size:14px;color:var(--pg-muted);line-height:1.8;}

  /* ---------- FAQ ---------- */
  .pg-faq{border-top:1px solid var(--pg-line);}
  .pg-faq-item{border-bottom:1px solid var(--pg-line);}
  .pg-faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding:22px 4px;
    background:none;
    border:0;
    color:var(--pg-text);
    font-size:16px;
    font-weight:600;
    text-align:left;
    cursor:pointer;
    line-height:1.7;
    transition:color .22s ease;
  }
  .pg-faq-q:hover{color:var(--pg-accent);}
  .pg-faq-q i{
    flex:0 0 auto;
    color:var(--pg-accent);
    font-size:14px;
    transition:transform .22s ease;
  }
  .pg-faq-item.is-open .pg-faq-q i{transform:rotate(45deg);}
  .pg-faq-body{
    max-height:0;
    overflow:hidden;
    transition:max-height .22s ease;
  }
  .pg-faq-body p{
    padding:0 4px 24px;
    font-size:14px;
    line-height:1.9;
    color:var(--pg-muted);
    max-width:820px;
  }

  /* ---------- 转化条 ---------- */
  .pg-cta{
    position:relative;
    border-radius:18px;
    overflow:hidden;
    border:1px solid var(--pg-line-strong);
    box-shadow:var(--pg-shadow);
  }
  .pg-cta-bg{
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-3.png');
    background-size:cover;
    background-position:center;
    opacity:.24;
  }
  .pg-cta-inner{
    position:relative;
    z-index:2;
    padding:52px 46px;
    display:grid;
    grid-template-columns:1.2fr .8fr;
    gap:34px;
    align-items:center;
    background:linear-gradient(120deg, rgba(7,22,30,.94), rgba(15,39,51,.7));
  }
  @media (max-width:900px){
    .pg-cta-inner{grid-template-columns:1fr;padding:38px 26px;}
  }
  .pg-cta h2{
    font-size:clamp(21px,2.4vw,30px);
    font-weight:700;
    line-height:1.4;
  }
  .pg-cta p{
    margin-top:14px;
    font-size:15px;
    color:var(--pg-muted);
    line-height:1.9;
    max-width:600px;
  }
  .pg-cta-actions{display:flex;flex-direction:column;gap:14px;}
  .pg-cta-actions .pg-btn{width:100%;}
  .pg-cta-tip{
    font-size:13px;
    color:var(--pg-muted);
    text-align:center;
    line-height:1.7;
  }

  /* ---------- 页脚 ---------- */
  .pg-footer{
    margin-top:24px;
    border-top:1px solid var(--pg-line);
    background:linear-gradient(180deg, rgba(7,22,30,.4), rgba(5,18,26,.9));
    padding:62px 0 26px;
  }
  .pg-footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.2fr;
    gap:36px;
  }
  @media (max-width:1023px){
    .pg-footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  }
  @media (max-width:567px){
    .pg-footer-grid{grid-template-columns:1fr;}
  }
  .pg-footer .pg-brand{padding:0;border-bottom:0;}
  .pg-footer-desc{
    margin-top:16px;
    font-size:14px;
    color:var(--pg-muted);
    line-height:1.9;
    max-width:340px;
  }
  .pg-footer-title{
    font-size:15px;
    font-weight:600;
    letter-spacing:.6px;
    margin-bottom:16px;
  }
  .pg-footer-links{display:flex;flex-direction:column;gap:11px;}
  .pg-footer-links a{
    font-size:14px;
    color:var(--pg-muted);
    transition:color .2s ease, transform .2s ease;
  }
  .pg-footer-links a:hover{color:var(--pg-accent);transform:translateX(2px);}
  .pg-footer-info{display:flex;flex-direction:column;gap:11px;}
  .pg-footer-info span{
    font-size:14px;
    color:var(--pg-muted);
    line-height:1.75;
  }
  .pg-footer-bottom{
    margin-top:44px;
    padding-top:22px;
    border-top:1px solid var(--pg-line);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    flex-wrap:wrap;
    font-size:13px;
    color:var(--pg-muted);
  }

  /* ---------- 回到顶部 ---------- */
  .pg-top{
    position:fixed;
    right:22px;bottom:22px;
    z-index:80;
    width:46px;height:46px;
    display:grid;place-items:center;
    border-radius:12px;
    background:rgba(15,39,51,.82);
    border:1px solid var(--pg-line-strong);
    color:var(--pg-text);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    cursor:pointer;
    opacity:0;
    visibility:hidden;
    transform:translateY(8px);
    transition:opacity .25s ease, transform .25s ease, visibility .25s, color .22s ease, border-color .22s ease;
  }
  .pg-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
  .pg-top:hover{color:var(--pg-accent);border-color:var(--pg-accent);}

/* roulang page: category3 */
:root{
  --pg-bg:#07161E;
  --pg-bg-soft:#0A1E28;
  --pg-panel:#0F2733;
  --pg-accent:#2FD6C0;
  --pg-accent-soft:rgba(47,214,192,.12);
  --pg-signal:#F2A73B;
  --pg-signal-soft:rgba(242,167,59,.12);
  --pg-text:#E4EFF3;
  --pg-muted:#93AEB8;
  --pg-line:rgba(255,255,255,.08);
  --pg-glass:rgba(255,255,255,.04);
  --pg-radius:14px;
  --pg-radius-sm:10px;
  --pg-shadow:0 18px 40px -20px rgba(0,0,0,.65);
  --pg-sidebar-w:248px;
  --pg-mono:ui-monospace,"Roboto Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
.pg-body{
  margin:0;
  padding:0;
  background:var(--pg-bg);
  color:var(--pg-text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
.pg-body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.55;
}
.pg-body.pg-lock{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
ul{list-style:none}

.pg-container{width:100%;max-width:1280px;margin:0 auto;padding:0 28px;position:relative;z-index:2}
@media (min-width:1440px){.pg-container{max-width:1360px}}

/* ---------- 左侧竖向导航 ---------- */
.pg-sidebar{
  display:none;
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--pg-sidebar-w);
  z-index:80;
  padding:26px 18px 24px;
  background:linear-gradient(180deg,#0A1E28 0%,#07161E 100%);
  border-right:1px solid var(--pg-line);
  flex-direction:column;
  overflow-y:auto;
}
.pg-brand{display:flex;align-items:center;gap:11px}
.pg-brand-mark{
  width:38px;height:38px;flex:none;
  display:grid;place-items:center;
  border-radius:11px;
  background:var(--pg-accent-soft);
  border:1px solid rgba(47,214,192,.35);
  color:var(--pg-accent);
  font-family:var(--pg-mono);
  font-size:15px;font-weight:700;letter-spacing:.6px;
}
.pg-brand-text{font-size:17px;font-weight:700;letter-spacing:.4px;color:var(--pg-text)}
.pg-nav{display:flex;flex-direction:column;gap:6px;margin-top:30px}
.pg-nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 14px;
  border-radius:var(--pg-radius-sm);
  color:var(--pg-muted);
  font-size:15px;
  transition:background .2s ease,color .2s ease;
}
.pg-nav-item i{width:20px;text-align:center;font-size:15px}
.pg-nav-item:hover{background:rgba(255,255,255,.05);color:var(--pg-text)}
.pg-nav-item.is-active{background:rgba(255,255,255,.06);color:var(--pg-text)}
.pg-nav-item.is-active::before{
  content:"";position:absolute;left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;
  background:var(--pg-accent);
  box-shadow:0 0 12px rgba(47,214,192,.65);
}
.pg-side-foot{margin-top:auto;padding-top:22px}
.pg-side-line{height:1px;background:var(--pg-line);margin-bottom:18px}
.pg-side-note{font-size:13px;line-height:1.8;color:var(--pg-muted);margin-bottom:16px}

/* ---------- 移动端顶栏与抽屉 ---------- */
.pg-mobile-bar{
  position:sticky;top:0;z-index:70;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 20px;
  background:rgba(7,22,30,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--pg-line);
}
.pg-burger{
  width:42px;height:42px;border-radius:var(--pg-radius-sm);
  background:var(--pg-glass);border:1px solid var(--pg-line);
  color:var(--pg-text);cursor:pointer;transition:all .2s ease;
}
.pg-burger:hover{border-color:rgba(47,214,192,.45);color:var(--pg-accent)}
.pg-drawer{
  position:fixed;inset:0;z-index:95;
  display:flex;flex-direction:column;
  padding:20px;
  background:linear-gradient(180deg,#0A1E28 0%,#07161E 100%);
  transform:translateX(100%);
  transition:transform .3s ease;
  overflow-y:auto;
}
.pg-drawer.is-open{transform:translateX(0)}
.pg-drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--pg-line)}
.pg-drawer-close{
  width:40px;height:40px;border-radius:var(--pg-radius-sm);
  background:var(--pg-glass);border:1px solid var(--pg-line);
  color:var(--pg-text);cursor:pointer;
}
.pg-drawer-nav{display:flex;flex-direction:column;margin-top:14px}
.pg-drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;font-size:18px;color:var(--pg-muted);
  border-bottom:1px solid var(--pg-line);
}
.pg-drawer-link.is-active{color:var(--pg-accent)}
.pg-drawer-link i{font-size:14px;opacity:.7}
.pg-drawer-foot{margin-top:auto;padding-top:26px}

/* ---------- 主区域 ---------- */
.pg-main{position:relative;z-index:1;display:block}
.pg-section{padding:48px 0}
.pg-section-head{margin-bottom:32px;max-width:760px}
.pg-h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.2;font-weight:700;letter-spacing:-.4px;
  margin:18px 0 20px;
}
.pg-h2{
  font-size:clamp(22px,2.6vw,34px);
  line-height:1.3;font-weight:700;letter-spacing:-.2px;
  margin:0 0 14px;
}
.pg-h3{font-size:19px;font-weight:600;line-height:1.5;margin:0 0 10px}
.pg-lead{font-size:16px;line-height:1.9;color:var(--pg-muted);max-width:660px}
.pg-muted{color:var(--pg-muted)}
.pg-mono{font-family:var(--pg-mono);font-variant-numeric:tabular-nums}

/* ---------- 徽章 / 按钮 ---------- */
.pg-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:999px;
  font-size:12px;line-height:1.7;letter-spacing:.3px;
  background:var(--pg-accent-soft);color:var(--pg-accent);
  border:1px solid rgba(47,214,192,.22);
}
.pg-badge--signal{background:var(--pg-signal-soft);color:var(--pg-signal);border-color:rgba(242,167,59,.22)}
.pg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  border-radius:var(--pg-radius-sm);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .22s ease;
}
.pg-btn--primary{
  background:var(--pg-accent);color:#062019;
  box-shadow:0 10px 26px -14px rgba(47,214,192,.75);
}
.pg-btn--primary:hover{
  transform:translateY(-1px);
  box-shadow:0 0 22px rgba(47,214,192,.34),0 14px 30px -16px rgba(47,214,192,.8);
}
.pg-btn--ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--pg-text)}
.pg-btn--ghost:hover{border-color:rgba(47,214,192,.6);color:var(--pg-accent)}
.pg-btn--block{width:100%}
.pg-btn:focus-visible{outline:2px solid var(--pg-accent);outline-offset:2px}
.pg-btn:active{transform:translateY(1px)}
.pg-link{color:var(--pg-accent);font-size:14px;display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid rgba(47,214,192,.35);padding-bottom:2px}
.pg-link i{transition:transform .2s ease}
.pg-link:hover i{transform:translateX(3px)}

/* ---------- 面包屑 ---------- */
.pg-crumb{padding:26px 0 4px;font-size:13px;color:var(--pg-muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.pg-crumb a{color:var(--pg-muted)}
.pg-crumb a:hover{color:var(--pg-accent)}
.pg-crumb .sep{opacity:.45}

/* ---------- Hero ---------- */
.pg-hero{position:relative;overflow:hidden;padding:44px 0 56px;border-bottom:1px solid var(--pg-line)}
.pg-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.22;
}
.pg-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,22,30,.72) 0%,rgba(7,22,30,.92) 62%,var(--pg-bg) 100%);
}
.pg-hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:48px;align-items:center;
}
.pg-hero-lead{font-size:17px;line-height:1.9;color:#B7CBD4;max-width:560px}
.pg-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.pg-trust{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;padding-top:24px;border-top:1px solid var(--pg-line)}
.pg-trust li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--pg-muted)}
.pg-trust i{color:var(--pg-accent);font-size:13px}
.pg-hero-media{position:relative}
.pg-hero-media img{
  width:100%;height:340px;object-fit:cover;
  border-radius:18px;
  border:1px solid var(--pg-line);
  filter:saturate(.9);
}
.pg-float-card{
  position:absolute;left:-22px;bottom:-24px;
  min-width:210px;
  padding:16px 20px;
  border-radius:var(--pg-radius);
  background:rgba(15,39,51,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:var(--pg-shadow);
}
.pg-float-card .num{font-family:var(--pg-mono);font-variant-numeric:tabular-nums;font-size:30px;font-weight:700;color:var(--pg-signal);line-height:1.2}
.pg-float-card .cap{font-size:13px;color:var(--pg-muted);margin-top:2px}

/* ---------- 指标带 ---------- */
.pg-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pg-stat{
  padding:24px;
  border-radius:var(--pg-radius);
  background:var(--pg-glass);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--pg-line);
  box-shadow:var(--pg-shadow);
  transition:border-color .22s ease,transform .22s ease;
}
.pg-stat:hover{border-color:rgba(47,214,192,.4);transform:translateY(-2px)}
.pg-stat-num{font-family:var(--pg-mono);font-variant-numeric:tabular-nums;font-size:38px;font-weight:700;color:var(--pg-signal);line-height:1.1}
.pg-stat-unit{font-size:14px;color:var(--pg-muted);margin-left:4px;font-family:var(--pg-mono)}
.pg-stat-label{font-size:13.5px;color:var(--pg-muted);margin-top:8px}
.pg-stat-bar{height:4px;border-radius:999px;background:rgba(255,255,255,.08);margin-top:14px;overflow:hidden}
.pg-stat-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,rgba(47,214,192,.35),var(--pg-accent))}

/* ---------- 场景瀑布 ---------- */
.pg-masonry{columns:3;column-gap:22px}
.pg-masonry > *{break-inside:avoid;margin-bottom:22px}
.pg-scene{
  border-radius:var(--pg-radius);
  background:var(--pg-glass);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--pg-line);
  box-shadow:var(--pg-shadow);
  overflow:hidden;
  transition:border-color .22s ease,transform .22s ease;
}
.pg-scene:hover{border-color:rgba(47,214,192,.4);transform:translateY(-3px)}
.pg-scene-img{width:100%;height:172px;object-fit:cover;transition:transform .35s ease}
.pg-scene:hover .pg-scene-img{transform:scale(1.02)}
.pg-scene-body{padding:22px}
.pg-scene-title{font-size:18px;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:9px}
.pg-scene-title i{color:var(--pg-accent);font-size:15px}
.pg-scene-text{font-size:14px;line-height:1.8;color:var(--pg-muted)}
.pg-scene-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--pg-line);font-size:13px;color:var(--pg-muted);display:flex;justify-content:space-between;align-items:center}
.pg-scene-foot .pg-mono{color:var(--pg-accent);font-size:13px}

/* ---------- 图文分栏 ---------- */
.pg-split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.pg-split-media{
  border-radius:18px;overflow:hidden;
  border:1px solid var(--pg-line);
  box-shadow:var(--pg-shadow);
}
.pg-split-media img{width:100%;height:380px;object-fit:cover}
.pg-list{margin-top:22px;display:flex;flex-direction:column;gap:14px}
.pg-list li{display:flex;gap:12px;font-size:15px;line-height:1.8;color:#C6D8DE}
.pg-list li i{color:var(--pg-accent);margin-top:7px;font-size:12px}
.pg-list li strong{color:var(--pg-text);font-weight:600}

/* ---------- 对比条 ---------- */
.pg-compare{display:flex;flex-direction:column;gap:16px}
.pg-compare-row{
  display:grid;grid-template-columns:1fr 56px 1fr;
  align-items:center;gap:16px;
  padding:22px 24px;
  border-radius:var(--pg-radius);
  background:var(--pg-glass);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--pg-line);
  transition:border-color .22s ease;
}
.pg-compare-row:hover{border-color:rgba(47,214,192,.32)}
.pg-compare-label{display:inline-block;font-size:12px;padding:3px 11px;border-radius:999px;background:rgba(255,255,255,.06);color:var(--pg-muted);margin-bottom:10px}
.pg-compare-side.is-after .pg-compare-label{background:var(--pg-accent-soft);color:var(--pg-accent)}
.pg-compare-text{font-size:14.5px;line-height:1.8;color:var(--pg-muted)}
.pg-compare-side.is-after .pg-compare-text{color:#CFE2E7}
.pg-compare-mid{display:grid;place-items:center;color:rgba(47,214,192,.75);font-size:16px}
.pg-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:14px}
.pg-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,rgba(47,214,192,.4),var(--pg-accent))}
.pg-compare-num{font-family:var(--pg-mono);font-variant-numeric:tabular-nums;font-size:13px;color:var(--pg-signal);margin-top:6px;display:block}

/* ---------- FAQ ---------- */
.pg-faq{border-top:1px solid var(--pg-line)}
.pg-faq-item{border-bottom:1px solid var(--pg-line)}
.pg-faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--pg-text);
  transition:color .2s ease;
}
.pg-faq-q:hover{color:var(--pg-accent)}
.pg-faq-icon{
  flex:none;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--pg-line);color:var(--pg-accent);font-size:12px;
  transition:transform .22s ease,border-color .22s ease;
}
.pg-faq-item.is-open .pg-faq-icon{transform:rotate(45deg);border-color:rgba(47,214,192,.5)}
.pg-faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.pg-faq-a-inner{padding:0 4px 24px;font-size:15px;line-height:1.9;color:var(--pg-muted);max-width:820px}

/* ---------- 转化区 ---------- */
.pg-cta{
  border-radius:18px;
  padding:44px;
  background:linear-gradient(140deg,rgba(15,39,51,.92),rgba(10,30,40,.92));
  border:1px solid rgba(47,214,192,.18);
  box-shadow:var(--pg-shadow);
}
.pg-cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.pg-form{display:grid;gap:18px}
.pg-field{display:flex;flex-direction:column;gap:7px}
.pg-label{font-size:13px;color:var(--pg-muted)}
.pg-input,.pg-select,.pg-textarea{
  width:100%;
  padding:12px 14px;
  border-radius:var(--pg-radius-sm);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  color:var(--pg-text);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.pg-input::placeholder,.pg-textarea::placeholder{color:rgba(147,174,184,.75)}
.pg-input:focus,.pg-select:focus,.pg-textarea:focus{
  outline:none;
  border-color:var(--pg-accent);
  box-shadow:0 0 0 4px rgba(47,214,192,.14);
}
.pg-select option{background:#0F2733;color:var(--pg-text)}
.pg-textarea{min-height:110px;resize:vertical}
.pg-form-note{font-size:13px;color:var(--pg-muted);margin-top:2px}

/* ---------- 页脚 ---------- */
.pg-footer{
  margin-top:64px;
  padding:56px 0 26px;
  background:linear-gradient(180deg,rgba(10,30,40,.45),rgba(7,22,30,1));
  border-top:1px solid var(--pg-line);
  position:relative;z-index:2;
}
.pg-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.pg-footer-desc{font-size:14px;line-height:1.85;color:var(--pg-muted);margin-top:16px;max-width:330px}
.pg-footer-title{font-size:14px;font-weight:600;color:var(--pg-text);margin-bottom:16px;letter-spacing:.3px}
.pg-footer-links{display:flex;flex-direction:column;gap:11px}
.pg-footer-links a{font-size:14px;color:var(--pg-muted);transition:color .2s ease}
.pg-footer-links a:hover{color:var(--pg-accent)}
.pg-footer-info{display:flex;flex-direction:column;gap:11px;font-size:14px;color:var(--pg-muted)}
.pg-footer-bottom{
  margin-top:42px;padding-top:22px;
  border-top:1px solid var(--pg-line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(147,174,184,.85);
}

/* ---------- 回到顶部 ---------- */
.pg-to-top{
  position:fixed;right:24px;bottom:28px;z-index:60;
  width:44px;height:44px;border-radius:var(--pg-radius-sm);
  display:grid;place-items:center;
  background:rgba(15,39,51,.8);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--pg-line);
  color:var(--pg-text);cursor:pointer;
  opacity:0;visibility:hidden;
  transition:all .25s ease;
}
.pg-to-top.is-show{opacity:1;visibility:visible}
.pg-to-top:hover{color:var(--pg-accent);border-color:rgba(47,214,192,.5)}

/* ---------- 渐入 ---------- */
.pg-reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease}
.pg-reveal.is-in{opacity:1;transform:none}

/* ---------- 断点 ---------- */
@media (min-width:1024px){
  .pg-sidebar{display:flex}
  .pg-main{margin-left:var(--pg-sidebar-w)}
  .pg-mobile-bar{display:none}
  .pg-section{padding:72px 0}
  .pg-hero{padding:56px 0 72px}
  .pg-drawer{display:none}
}
@media (min-width:1024px) and (max-width:1279px){
  .pg-sidebar{width:76px;padding:22px 10px}
  .pg-sidebar .pg-brand{justify-content:center}
  .pg-sidebar .pg-brand-text{display:none}
  .pg-nav-item{justify-content:center;padding:12px 0}
  .pg-nav-item span{display:none}
  .pg-side-foot{display:none}
  .pg-main{margin-left:76px}
}
@media (max-width:1023px){
  .pg-masonry{columns:2}
  .pg-hero-inner{grid-template-columns:1fr;gap:40px}
  .pg-hero-media img{height:280px}
  .pg-float-card{left:auto;right:16px;bottom:-20px}
  .pg-stats{grid-template-columns:repeat(2,1fr)}
  .pg-split{grid-template-columns:1fr;gap:32px}
  .pg-split-media img{height:300px}
  .pg-cta-grid{grid-template-columns:1fr;gap:32px}
  .pg-footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .pg-section{padding:56px 0}
}
@media (max-width:639px){
  .pg-container{padding:0 18px}
  .pg-masonry{columns:1}
  .pg-stats{grid-template-columns:1fr}
  .pg-compare-row{grid-template-columns:1fr;gap:14px}
  .pg-compare-mid{display:none}
  .pg-cta{padding:26px}
  .pg-footer-grid{grid-template-columns:1fr}
  .pg-section{padding:44px 0}
  .pg-hero-media img{height:220px}
  .pg-split-media img{height:220px}
  .pg-to-top{right:16px;bottom:18px}
}