/* roulang page: index */
:root{
    --bg-0:#050B12;
    --bg-1:#0A141F;
    --bg-2:#0E1B28;
    --primary:#17E0B8;
    --primary-hi:#3DF0CC;
    --accent:#FFB443;
    --text:#E6EDF5;
    --muted:#8FA3B8;
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.14);
    --radius-s:12px;
    --radius-m:16px;
    --radius-l:20px;
    --shadow:0 20px 45px -25px rgba(0,0,0,.8);
    --container:1200px;
    --font: "PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--text);
    font-family:var(--font);
    font-size:16px;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;}
  input,textarea,select{font-family:inherit;}
  h1,h2,h3{letter-spacing:-0.01em;font-weight:700;margin:0;line-height:1.25;}
  h1{font-size:48px;}
  h2{font-size:32px;}
  h3{font-size:20px;}
  p{margin:0;}
  ::selection{background:rgba(23,224,184,.28);}
  .container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
  .num{font-variant-numeric:tabular-nums;}
  .section{padding:104px 0;}
  .section-tight{padding:80px 0;}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
  .sec-sub{font-size:14px;color:var(--muted);margin-top:10px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.08em;color:var(--primary);
    border:1px solid rgba(23,224,184,.32);border-radius:999px;
    padding:4px 12px;background:rgba(23,224,184,.07);
  }
  .glass{
    background:rgba(255,255,255,.04);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    border:1px solid rgba(255,255,255,.09);
    border-radius:var(--radius-m);
    box-shadow:var(--shadow);
    position:relative;
    overflow:hidden;
  }
  .glass::before{
    content:"";position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.42),rgba(255,255,255,0));
  }
  .glass-lg{border-radius:var(--radius-l);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;padding:13px 28px;font-size:15px;font-weight:600;
    transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
    border:1px solid transparent;white-space:nowrap;
  }
  .btn-primary{
    background:var(--primary);color:#04231D;
    box-shadow:0 0 0 1px rgba(23,224,184,.5),0 12px 32px -12px rgba(23,224,184,.65);
  }
  .btn-primary:hover{background:var(--primary-hi);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(23,224,184,.7),0 20px 42px -14px rgba(23,224,184,.8);}
  .btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(23,224,184,.5),0 6px 18px -10px rgba(23,224,184,.6);}
  .btn-ghost{
    background:rgba(255,255,255,.05);color:var(--primary);border-color:rgba(23,224,184,.42);
    backdrop-filter:blur(10px);
  }
  .btn-ghost:hover{background:rgba(23,224,184,.12);border-color:var(--primary);transform:translateY(-2px);}
  .btn-sm{padding:9px 20px;font-size:14px;}
  .link-more{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
  .link-more:hover{color:var(--primary-hi);}
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;line-height:1;background:rgba(23,224,184,.13);color:var(--primary);
    border:1px solid rgba(23,224,184,.28);
  }
  .badge-amber{background:rgba(255,180,67,.13);color:var(--accent);border-color:rgba(255,180,67,.3);}
  .badge-mute{background:rgba(255,255,255,.06);color:var(--muted);border-color:var(--line-strong);}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(5,11,18,.72);
    backdrop-filter:blur(16px) saturate(140%);
    -webkit-backdrop-filter:blur(16px) saturate(140%);
    border-bottom:1px solid transparent;
    transition:background .3s ease,border-color .3s ease;
  }
  .site-header.is-stuck{background:rgba(5,11,18,.94);border-bottom-color:var(--line);}
  .nav-wrap{display:flex;align-items:center;gap:20px;height:76px;}
  .logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .logo-mark{
    width:38px;height:38px;border-radius:11px;flex-shrink:0;
    background:linear-gradient(140deg,#17E0B8,#0C8E76);
    display:flex;align-items:center;justify-content:center;
    color:#04231D;font-weight:800;font-size:15px;
    box-shadow:0 10px 24px -14px rgba(23,224,184,.9);
  }
  .logo-text{font-size:17px;font-weight:700;white-space:nowrap;}
  .nav-search{
    flex:1;max-width:440px;position:relative;margin:0 auto;
  }
  .nav-search input{
    width:100%;height:44px;border-radius:999px;padding:0 18px 0 46px;
    background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
    color:var(--text);font-size:14px;outline:none;
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .nav-search input::placeholder{color:#6E8399;}
  .nav-search input:focus{
    border-color:var(--primary);background:rgba(23,224,184,.06);
    box-shadow:0 0 0 4px rgba(23,224,184,.12);
  }
  .nav-search svg{position:absolute;left:17px;top:50%;transform:translateY(-50%);opacity:.7;}
  .nav-links{display:flex;align-items:center;gap:6px;}
  .nav-links a{
    font-size:14px;color:var(--muted);padding:9px 14px;border-radius:999px;
    transition:color .2s ease,background .2s ease;
  }
  .nav-links a:hover{color:var(--text);background:rgba(255,255,255,.06);}
  .nav-links a.active{color:var(--primary);background:rgba(23,224,184,.1);}
  .nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .search-toggle{display:none;background:rgba(255,255,255,.06);border:1px solid var(--line-strong);
    width:42px;height:42px;border-radius:12px;color:var(--text);align-items:center;justify-content:center;}
  .mobile-panel{display:none;}
  .mobile-panel input{
    width:100%;height:44px;border-radius:999px;padding:0 18px 0 46px;
    background:rgba(255,255,255,.05);border:1px solid var(--line-strong);color:var(--text);font-size:14px;outline:none;
  }
  .mobile-panel input:focus{border-color:var(--primary);}
  .mobile-panel.open{display:block;padding-bottom:16px;}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;padding:88px 0 96px;overflow:hidden;
    background-image:linear-gradient(90deg,rgba(5,11,18,.96) 8%,rgba(5,11,18,.72) 52%,rgba(5,11,18,.42) 100%),url('/assets/images/backpic/back-1.png');
    background-size:cover;background-position:center right;
  }
  .hero::after{
    content:"";position:absolute;inset:auto 0 0 0;height:140px;
    background:linear-gradient(180deg,rgba(5,11,18,0),var(--bg-0));
  }
  .hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
  .hero h1{font-size:48px;line-height:1.18;margin:20px 0 18px;}
  .hero h1 em{font-style:normal;color:var(--primary);}
  .hero-lead{color:var(--muted);font-size:16px;max-width:560px;}
  .trust-row{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px;}
  .trust-row span{
    font-size:13px;color:var(--text);border:1px solid var(--line-strong);
    background:rgba(255,255,255,.04);border-radius:999px;padding:5px 14px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
  .hero-card{padding:18px;}
  .hero-card img{border-radius:var(--radius-s);width:100%;aspect-ratio:16/10;object-fit:cover;}
  .hero-card-body{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;}
  .hero-card-body strong{font-size:15px;font-weight:600;}
  .hero-card-body span{font-size:13px;color:var(--muted);}
  .scroll-hint{display:flex;align-items:center;gap:8px;margin-top:38px;font-size:13px;color:var(--muted);}
  .scroll-hint i{
    width:20px;height:30px;border:1px solid var(--line-strong);border-radius:999px;position:relative;display:inline-block;
  }
  .scroll-hint i::after{
    content:"";position:absolute;left:50%;top:6px;width:3px;height:6px;border-radius:2px;background:var(--primary);
    transform:translateX(-50%);animation:dot 1.6s infinite ease-in-out;
  }
  @keyframes dot{0%{opacity:0;transform:translate(-50%,0);}40%{opacity:1;}100%{opacity:0;transform:translate(-50%,12px);}}

  /* ---------- 卖点 ---------- */
  .feature-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;}
  .feature-main{padding:32px;}
  .feature-list{display:grid;gap:14px;margin-top:26px;}
  .feature-item{display:flex;gap:14px;padding:16px;border-radius:var(--radius-s);
    border:1px solid var(--line);background:rgba(255,255,255,.025);}
  .feature-item b{
    font-size:13px;color:var(--primary);border:1px solid rgba(23,224,184,.32);
    border-radius:8px;width:30px;height:30px;display:flex;align-items:center;justify-content:center;flex-shrink:0;
  }
  .feature-item div strong{display:block;font-size:15px;margin-bottom:4px;}
  .feature-item div p{font-size:13.5px;color:var(--muted);}
  .feature-side{display:grid;gap:24px;}
  .feature-side .glass{padding:26px;}
  .feature-side h3{margin-bottom:10px;}
  .feature-side p{font-size:14px;color:var(--muted);}

  /* ---------- 演示 ---------- */
  .demo-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
  .demo-tab{
    border-radius:999px;padding:9px 20px;font-size:14px;color:var(--muted);
    background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
    transition:all .22s ease;
  }
  .demo-tab:hover{color:var(--text);}
  .demo-tab.active{
    color:#04231D;background:linear-gradient(120deg,var(--primary),#0FC8A4);
    border-color:transparent;box-shadow:0 12px 28px -16px rgba(23,224,184,.9);
  }
  .demo-panel{display:none;padding:20px;}
  .demo-panel.active{display:grid;grid-template-columns:1.35fr 1fr;gap:26px;align-items:center;}
  .demo-panel img{border-radius:var(--radius-s);width:100%;aspect-ratio:16/9;object-fit:cover;}
  .demo-panel h3{margin-bottom:10px;}
  .demo-panel p{font-size:14px;color:var(--muted);}
  .demo-points{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:9px;}
  .demo-points li{font-size:14px;color:var(--text);display:flex;gap:9px;align-items:flex-start;}
  .demo-points li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--primary);margin-top:8px;flex-shrink:0;}

  /* ---------- 证据 ---------- */
  .stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
  .stat{padding:24px;border-radius:var(--radius-m);border:1px solid var(--line);background:rgba(255,255,255,.03);}
  .stat b{font-size:32px;font-weight:800;color:var(--text);}
  .stat b span{font-size:14px;font-weight:500;color:var(--muted);margin-left:4px;}
  .stat p{font-size:13.5px;color:var(--muted);margin-top:6px;}
  .logo-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
  .logo-chip{
    flex:1 1 150px;height:56px;border-radius:var(--radius-s);border:1px dashed var(--line-strong);
    display:flex;align-items:center;justify-content:center;color:#5C7288;font-size:13px;letter-spacing:.05em;
    filter:grayscale(1);background:rgba(255,255,255,.02);
  }

  /* ---------- 报价 ---------- */
  .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .price-main{
    grid-column:span 2;padding:34px;
    border:1px solid rgba(23,224,184,.42);
    box-shadow:0 0 0 1px rgba(23,224,184,.16),0 30px 60px -30px rgba(23,224,184,.45);
  }
  .price-main .price-figure{font-size:28px;font-weight:800;color:var(--accent);margin:18px 0 8px;}
  .price-side{padding:28px;display:flex;flex-direction:column;justify-content:space-between;}
  .price-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px;}
  .price-list li{font-size:14px;color:var(--muted);display:flex;gap:10px;}
  .price-list li::before{content:"—";color:var(--primary);}

  /* ---------- 资讯 ---------- */
  .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .news-card{
    display:flex;flex-direction:column;border-radius:var(--radius-m);overflow:hidden;
    border:1px solid var(--line);background:rgba(255,255,255,.035);
    transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
    height:100%;
  }
  .news-card:hover{border-color:rgba(23,224,184,.42);transform:translateY(-3px);box-shadow:0 24px 45px -30px rgba(0,0,0,.9);}
  .news-thumb{overflow:hidden;}
  .news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .4s ease;}
  .news-card:hover .news-thumb img{transform:scale(1.03);}
  .news-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .news-body h3{font-size:17px;line-height:1.45;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .news-body p{font-size:13.5px;color:var(--muted);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;
    font-size:13px;color:var(--muted);padding-top:8px;border-top:1px solid var(--line);}
  .empty-state{
    grid-column:1/-1;padding:56px 24px;text-align:center;border:1px dashed var(--line-strong);
    border-radius:var(--radius-m);background:rgba(255,255,255,.02);
  }
  .empty-state svg{opacity:.6;margin:0 auto 12px;}
  .empty-state p{color:var(--muted);font-size:14px;}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:880px;margin:0 auto;}
  .faq-item{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:-1px;
    background:rgba(255,255,255,.03);backdrop-filter:blur(12px);
    transition:background .22s ease;}
  .faq-item:hover{background:rgba(255,255,255,.05);}
  .faq-q{
    width:100%;background:none;border:0;color:var(--text);text-align:left;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:22px 24px;font-size:16px;font-weight:600;position:relative;
  }
  .faq-q::before{
    content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
    background:var(--primary);opacity:0;transition:opacity .22s ease;
  }
  .faq-item.open .faq-q::before{opacity:1;}
  .faq-icon{color:var(--primary);font-size:20px;line-height:1;transition:transform .25s ease;flex-shrink:0;}
  .faq-item.open .faq-icon{transform:rotate(90deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
  .faq-a p{padding:0 24px 22px;font-size:14px;color:var(--muted);}

  /* ---------- 表单 ---------- */
  .contact-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:start;}
  .field{margin-bottom:16px;}
  .field label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px;}
  .field input,.field textarea,.field select{
    width:100%;background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
    border-radius:var(--radius-s);padding:12px 14px;color:var(--text);font-size:14px;outline:none;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field textarea{min-height:112px;resize:vertical;}
  .field input:focus,.field textarea:focus,.field select:focus{
    border-color:var(--primary);box-shadow:0 0 0 4px rgba(23,224,184,.12);
  }
  .form-note{font-size:12.5px;color:var(--muted);margin-top:12px;}
  .submit-row{display:flex;justify-content:flex-end;margin-top:6px;}
  .submit-row .btn{width:auto;}

  /* ---------- 页脚 ---------- */
  .site-footer{border-top:1px solid var(--line);background:var(--bg-1);padding:64px 0 0;margin-top:40px;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
  .footer-grid h4{font-size:14px;margin:0 0 16px;color:var(--text);font-weight:600;}
  .footer-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
  .footer-grid ul a{font-size:13.5px;color:var(--muted);transition:color .2s ease;}
  .footer-grid ul a:hover{color:var(--primary);}
  .footer-brand p{font-size:13.5px;color:var(--muted);margin-top:14px;max-width:280px;}
  .footer-bottom{
    margin-top:48px;border-top:1px solid var(--line);padding:20px 0;
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
    font-size:13px;color:#71879D;
  }

  /* ---------- 浮动 CTA ---------- */
  .float-cta{
    position:fixed;right:32px;bottom:32px;z-index:70;
    display:flex;flex-direction:column;align-items:flex-end;gap:12px;
    opacity:0;visibility:hidden;transform:translateY(12px);
    transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
  }
  .float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
  .float-menu{
    display:grid;gap:8px;padding:12px;border-radius:var(--radius-m);
    background:rgba(10,20,31,.94);border:1px solid var(--line-strong);
    box-shadow:var(--shadow);backdrop-filter:blur(14px);
    opacity:0;visibility:hidden;transform:translateY(8px);
    transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
  }
  .float-cta.open .float-menu{opacity:1;visibility:visible;transform:translateY(0);}
  .float-menu a{font-size:14px;color:var(--muted);padding:8px 14px;border-radius:10px;white-space:nowrap;}
  .float-menu a:hover{color:var(--primary);background:rgba(23,224,184,.1);}
  .float-fab{
    width:56px;height:56px;border-radius:999px;border:0;
    background:var(--primary);color:#04231D;font-size:22px;font-weight:700;
    display:flex;align-items:center;justify-content:center;
    box-shadow:0 0 0 1px rgba(23,224,184,.5),0 16px 34px -14px rgba(23,224,184,.75);
    transition:transform .22s ease,box-shadow .22s ease,background .22s ease;
  }
  .float-fab:hover{background:var(--primary-hi);transform:translateY(-2px);}
  .float-bar{display:none;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    h1{font-size:36px;}
    h2{font-size:26px;}
    .hero h1{font-size:36px;}
    .section{padding:76px 0;}
    .nav-search{max-width:260px;}
    .nav-links{display:none;}
    .hero-grid{grid-template-columns:1fr;gap:36px;}
    .feature-grid{grid-template-columns:1fr;}
    .price-grid{grid-template-columns:1fr 1fr;}
    .price-main{grid-column:span 2;}
    .news-grid{grid-template-columns:repeat(2,1fr);}
    .stat-row{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
    .contact-grid{grid-template-columns:1fr;gap:30px;}
    .demo-panel.active{grid-template-columns:1fr;}
  }
  @media (max-width:767px){
    .nav-search{display:none;}
    .search-toggle{display:flex;}
    .nav-cta .btn{display:none;}
    .nav-wrap{height:68px;gap:12px;}
    .logo-text{font-size:15px;}
  }
  @media (max-width:639px){
    h1{font-size:30px;}
    h2{font-size:24px;}
    .hero{padding:56px 0 72px;}
    .hero h1{font-size:30px;}
    .section{padding:60px 0;}
    .container{padding:0 18px;}
    .news-grid{grid-template-columns:1fr;}
    .price-grid{grid-template-columns:1fr;}
    .price-main{grid-column:span 1;}
    .stat-row{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .hero-actions .btn{width:100%;}
    .submit-row{justify-content:stretch;}
    .submit-row .btn{width:100%;}
    .float-cta{right:0;left:0;bottom:0;align-items:stretch;}
    .float-fab,.float-menu{display:none;}
    .float-bar{
      display:flex;align-items:center;gap:10px;height:56px;padding:0 14px;
      background:linear-gradient(180deg,rgba(5,11,18,.5),rgba(5,11,18,.96));
      border-top:1px solid var(--line-strong);
    }
    .float-bar a{
      flex:1;text-align:center;font-size:13.5px;padding:9px 6px;border-radius:999px;
      border:1px solid var(--line-strong);color:var(--text);
    }
    .float-bar a.primary{background:var(--primary);color:#04231D;border-color:transparent;font-weight:600;}
  }
  @media (hover:none){
    .news-card:hover{transform:none;}
    .news-card:hover .news-thumb img{transform:none;}
    .btn:hover{transform:none;}
  }

/* roulang page: article */
:root{
  --bg-0:#050B12;
  --bg-1:#0A141F;
  --bg-2:#0E1B28;
  --primary:#17E0B8;
  --primary-2:#3DF0CC;
  --accent:#FFB443;
  --text:#E6EDF5;
  --muted:#8FA3B8;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.04);
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --shadow:0 20px 45px -25px rgba(0,0,0,.8);
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 420px at 12% -6%, rgba(23,224,184,.13), transparent 62%),
    radial-gradient(760px 420px at 92% 4%, rgba(255,180,67,.08), transparent 60%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:700}
p{margin:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}
::selection{background:rgba(23,224,184,.28)}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,11,18,.72);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(5,11,18,.94);
  border-bottom-color:var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:72px;
  position:relative;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  font-weight:700;font-size:16px;
  color:#04201A;
  background:linear-gradient(140deg,var(--primary-2),var(--primary));
  box-shadow:0 8px 22px -10px rgba(23,224,184,.85);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.nav-search{
  flex:1 1 auto;
  max-width:460px;
  margin:0 auto;
  position:relative;
  display:flex;
  align-items:center;
}
.nav-search svg{
  position:absolute;left:16px;width:17px;height:17px;
  color:var(--muted);pointer-events:none;
}
.nav-search input{
  width:100%;
  height:44px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  padding:0 18px 0 44px;
  font-size:14.5px;
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search input::placeholder{color:#66798d}
.nav-search input:focus{
  border-color:rgba(23,224,184,.65);
  box-shadow:0 0 0 4px rgba(23,224,184,.14);
  background:rgba(255,255,255,.06);
}
.nav-links{display:flex;align-items:center;gap:22px;flex:0 0 auto}
.nav-links a{
  font-size:14.5px;
  color:var(--muted);
  padding:6px 0;
  position:relative;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--text)}
.nav-icon-btn{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  align-items:center;justify-content:center;
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.nav-icon-btn:hover{border-color:rgba(23,224,184,.5);color:var(--primary)}
.nav-icon-btn svg{width:18px;height:18px}

/* ---------- 页面通用 ---------- */
.page-main{padding:44px 0 96px;position:relative;z-index:1}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;
  font-size:15px;font-weight:600;
  padding:13px 28px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(140deg,var(--primary-2),var(--primary));
  color:#04201A;
  box-shadow:0 0 0 1px rgba(23,224,184,.5),0 12px 32px -12px rgba(23,224,184,.65);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(23,224,184,.72),0 18px 42px -12px rgba(23,224,184,.8);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(23,224,184,.5),0 8px 20px -14px rgba(23,224,184,.6)}
.btn-ghost{
  background:var(--glass);
  border-color:rgba(23,224,184,.42);
  color:var(--primary);
}
.btn-ghost:hover{background:rgba(23,224,184,.1);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}

.badge{
  display:inline-flex;align-items:center;height:24px;
  padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(23,224,184,.12);
  color:var(--primary);
  border:1px solid rgba(23,224,184,.26);
}
.badge-accent{
  background:rgba(255,180,67,.12);
  color:var(--accent);
  border-color:rgba(255,180,67,.28);
}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:
    linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015)),
    var(--bg-1);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.16;
  pointer-events:none;
}
.article-hero-inner{
  position:relative;z-index:2;
  padding:38px 44px 40px;
  max-width:880px;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#4a5d72}
.breadcrumb .current{color:var(--primary)}
.article-hero h1{
  font-size:36px;
  line-height:1.35;
  margin:18px 0 18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;
  font-size:13px;color:var(--muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#3d5165;display:inline-block}
.article-meta time{font-variant-numeric:tabular-nums}

/* ---------- 正文 ---------- */
.article-layout{max-width:780px;margin:40px auto 0}
.article-body{
  font-size:16.5px;
  line-height:1.9;
  color:#DCE6F2;
  overflow-wrap:break-word;
}
.article-body p{margin:0 0 18px;text-indent:0}
.article-body h2{
  font-size:24px;
  margin:42px 0 16px;
  padding-left:14px;
  border-left:3px solid var(--primary);
  line-height:1.5;
}
.article-body h3{
  font-size:20px;
  margin:32px 0 12px;
  color:#F1F6FC;
}
.article-body h4{font-size:17px;margin:24px 0 10px;color:#DCE6F2}
.article-body ul,.article-body ol{margin:0 0 20px}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul>li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:2px;background:var(--primary);
}
.article-body ol{counter-reset:item}
.article-body ol>li::before{
  counter-increment:item;
  content:counter(item);
  position:absolute;left:0;top:.18em;
  width:18px;height:18px;border-radius:5px;
  display:grid;place-items:center;
  font-size:11px;font-weight:700;color:#04201A;
  background:rgba(23,224,184,.85);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:26px 0;
  padding:16px 22px;
  border-left:3px solid var(--primary);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  color:#B9C8D8;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{
  color:var(--primary);
  border-bottom:1px solid rgba(23,224,184,.35);
  transition:border-color .2s ease,color .2s ease;
}
.article-body a:hover{color:var(--primary-2);border-bottom-color:var(--primary-2)}
.article-body img{
  margin:26px auto;
  border-radius:12px;
  border:1px solid var(--line);
}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body code{
  background:rgba(255,255,255,.07);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
  font-size:14px;
}
.article-body pre{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:18px 20px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:0 0 22px;
}
.article-body pre code{background:none;border:0;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:14.5px}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
}
.article-body th{background:rgba(255,255,255,.05);font-weight:600}

.empty-state{
  border:1px dashed rgba(255,255,255,.16);
  border-radius:var(--radius);
  background:var(--glass);
  padding:56px 28px;
  text-align:center;
}
.empty-state svg{width:46px;height:46px;color:var(--primary);margin:0 auto 16px}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

.article-foot{
  margin-top:40px;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.back-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;color:var(--primary);
  transition:gap .2s ease,color .2s ease;
}
.back-link:hover{gap:12px;color:var(--primary-2)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- 相关推荐 ---------- */
.section{margin-top:88px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;
}
.section-head h2{font-size:26px}
.section-head .sub{font-size:14px;color:var(--muted);margin-top:6px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.card:hover{
  border-color:rgba(23,224,184,.4);
  transform:translateY(-3px);
}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,18,0) 40%,rgba(5,11,18,.72));
}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.5}
.card-body p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.card-foot .go{color:var(--primary);font-weight:600}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:88px;
  border:1px solid rgba(23,224,184,.22);
  border-radius:var(--radius-lg);
  background:
    linear-gradient(120deg,rgba(23,224,184,.12),rgba(255,180,67,.06) 70%,transparent),
    var(--bg-1);
  box-shadow:var(--shadow);
  padding:40px 44px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band h2{font-size:24px;margin-bottom:8px}
.cta-band p{font-size:14.5px;color:var(--muted);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,20,31,.6),rgba(5,11,18,.95));
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:56px 0 36px;
}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:13.5px;color:var(--muted);max-width:260px}
.site-footer h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.site-footer ul li{margin-bottom:11px}
.site-footer ul a{
  font-size:13.5px;color:var(--muted);
  transition:color .2s ease;
}
.site-footer ul a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;
  font-size:13px;color:#6C7F94;
}

.to-top{
  position:fixed;right:28px;bottom:28px;z-index:70;
  width:46px;height:46px;border-radius:14px;
  border:1px solid var(--line-strong);
  background:rgba(10,20,31,.86);
  backdrop-filter:blur(12px);
  display:grid;place-items:center;
  color:var(--primary);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,border-color .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(23,224,184,.55)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-search{
    display:none;
    position:absolute;
    left:0;right:0;top:calc(100% + 10px);
    max-width:none;
    margin:0;
    padding:0 24px;
  }
  .site-header.search-open .nav-search{display:flex}
  .nav-search input{background:rgba(10,20,31,.96);backdrop-filter:blur(14px)}
  .nav-search-toggle{display:inline-flex !important}
  .nav-wrap{gap:12px}
  .nav-links{margin-left:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .article-hero h1{font-size:30px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .nav-wrap{min-height:64px}
  .nav-menu-toggle{display:inline-flex !important}
  .nav-links{
    position:absolute;
    left:18px;right:18px;top:calc(100% + 10px);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px;
    border:1px solid var(--line);
    border-radius:var(--radius);
    background:rgba(10,20,31,.97);
    backdrop-filter:blur(18px);
    box-shadow:var(--shadow);
    display:none;
  }
  .site-header.menu-open .nav-links{display:flex}
  .nav-links a{padding:12px 12px;border-radius:10px;font-size:15px}
  .nav-links a::after{display:none}
  .nav-links a:hover,.nav-links a.active{background:rgba(23,224,184,.1);color:var(--text)}
  .page-main{padding:28px 0 64px}
  .article-hero-inner{padding:26px 22px 28px}
  .article-hero h1{font-size:23px;margin:14px 0 14px}
  .article-layout{margin-top:26px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin:32px 0 14px}
  .article-body h3{font-size:18px}
  .section{margin-top:64px}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .cta-band{margin-top:64px;padding:28px 22px}
  .cta-band h2{font-size:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .to-top{right:16px;bottom:18px;width:42px;height:42px}
  .article-foot{flex-direction:column;align-items:flex-start}
}
@media (hover:none){
  .card:hover{transform:none}
  .card:hover .card-media img{transform:none}
  .btn-primary:hover,.btn-ghost:hover{transform:none}
}

/* roulang page: category1 */
:root{
    --bg-0:#050B12;
    --bg-1:#0A141F;
    --bg-2:#0E1B28;
    --primary:#17E0B8;
    --primary-hi:#3DF0CC;
    --accent:#FFB443;
    --text:#E6EDF5;
    --muted:#8FA3B8;
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.16);
    --glass:rgba(255,255,255,.04);
    --radius-sm:12px;
    --radius:16px;
    --radius-lg:20px;
    --shadow:0 20px 45px -25px rgba(0,0,0,.8);
    --container:1200px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:
      radial-gradient(900px 480px at 82% -8%, rgba(23,224,184,.10), transparent 62%),
      radial-gradient(760px 420px at 6% 8%, rgba(255,180,67,.06), transparent 60%),
      var(--bg-0);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.7;
    letter-spacing:0;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease,border-color .22s ease,opacity .22s ease;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  input,textarea,select{font:inherit;color:inherit;}
  h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.28;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px;}
  .num{font-variant-numeric:tabular-nums;}

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

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(5,11,18,.72);
    backdrop-filter:blur(14px) saturate(140%);
    border-bottom:1px solid var(--line);
    transition:background .3s ease,border-color .3s ease;
  }
  .site-header.scrolled{background:rgba(5,11,18,.94);border-bottom-color:rgba(255,255,255,.13);}
  .nav-wrap{display:flex;align-items:center;gap:18px;height:74px;}
  .logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .logo-mark{
    width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
    background:linear-gradient(140deg,rgba(23,224,184,.95),rgba(23,224,184,.35));
    color:#04121A;font-weight:800;font-size:16px;
    border:1px solid rgba(23,224,184,.5);
  }
  .logo-text{font-size:17px;font-weight:700;white-space:nowrap;}
  .logo:hover .logo-text{color:var(--primary-hi);}

  .nav-search{position:relative;flex:1;max-width:390px;min-width:180px;}
  .nav-search svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);opacity:.55;pointer-events:none;}
  .nav-search input{
    width:100%;height:44px;border-radius:999px;
    background:var(--glass);border:1px solid var(--line);
    padding:0 18px 0 44px;font-size:14px;outline:none;
    transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
  }
  .nav-search input::placeholder{color:#6C8095;}
  .nav-search input:focus{
    border-color:rgba(23,224,184,.72);
    background:rgba(255,255,255,.06);
    box-shadow:0 0 0 3px rgba(23,224,184,.15);
  }

  .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
  .nav-links a{
    padding:9px 14px;border-radius:999px;font-size:14.5px;color:var(--muted);white-space:nowrap;
  }
  .nav-links a:hover{color:var(--text);background:rgba(255,255,255,.06);}
  .nav-links a.active{
    color:var(--primary);
    background:rgba(23,224,184,.12);
    border:1px solid rgba(23,224,184,.34);
    padding:8px 13px;
  }
  .nav-cta{height:42px;padding:0 20px;font-size:14px;flex-shrink:0;}

  .nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--glass);place-items:center;flex-shrink:0;}
  .nav-toggle:hover{border-color:rgba(23,224,184,.5);}
  .mobile-panel{display:none;border-top:1px solid var(--line);background:rgba(5,11,18,.97);}
  .mobile-panel.open{display:block;}
  .mobile-inner{padding:18px 24px 24px;display:grid;gap:14px;}
  .mobile-panel .nav-search{max-width:none;}
  .mobile-nav{display:grid;gap:6px;}
  .mobile-nav a{padding:12px 14px;border-radius:12px;background:var(--glass);border:1px solid var(--line);font-size:15px;color:var(--muted);}
  .mobile-nav a.active{color:var(--primary);border-color:rgba(23,224,184,.42);background:rgba(23,224,184,.1);}

  /* ---------- 通用 ---------- */
  .section{padding:96px 0;}
  .section-tight{padding:72px 0;}
  .section-head{max-width:760px;margin-bottom:44px;}
  .section-head h2{font-size:clamp(24px,3.2vw,32px);}
  .section-head p{margin-top:12px;color:var(--muted);font-size:14.5px;line-height:1.8;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;letter-spacing:.08em;color:var(--primary);
    text-transform:none;margin-bottom:16px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:rgba(23,224,184,.6);}

  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;line-height:1;border:1px solid var(--line-strong);color:var(--muted);
    background:rgba(255,255,255,.03);
  }
  .badge-primary{border-color:rgba(23,224,184,.45);color:var(--primary);background:rgba(23,224,184,.09);}
  .badge-accent{border-color:rgba(255,180,67,.45);color:var(--accent);background:rgba(255,180,67,.09);}

  .card{
    position:relative;overflow:hidden;
    background:var(--glass);
    backdrop-filter:blur(14px) saturate(140%);
    border:1px solid rgba(255,255,255,.09);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
  }
  .card::before{
    content:"";position:absolute;left:0;right:0;top:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);
  }

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 26px;border-radius:999px;
    font-size:15px;font-weight:600;white-space:nowrap;
    transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
  }
  .btn-primary{
    background:var(--primary);color:#04121A;
    box-shadow:0 0 0 1px rgba(23,224,184,.5),0 12px 32px -12px rgba(23,224,184,.65);
  }
  .btn-primary:hover{
    background:var(--primary-hi);transform:translateY(-2px);
    box-shadow:0 0 0 1px rgba(61,240,204,.6),0 20px 44px -14px rgba(23,224,184,.8);
  }
  .btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(23,224,184,.5),0 6px 18px -10px rgba(23,224,184,.6);}
  .btn-ghost{
    background:var(--glass);color:var(--primary);
    border:1px solid rgba(23,224,184,.42);
  }
  .btn-ghost:hover{background:rgba(23,224,184,.12);border-color:rgba(23,224,184,.72);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(0);}

  /* ---------- 分类 Hero ---------- */
  .cat-hero{position:relative;overflow:hidden;padding:78px 0 92px;}
  .cat-hero::before{
    content:"";position:absolute;inset:0;
    background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    opacity:.3;
  }
  .cat-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(5,11,18,.97) 0%,rgba(5,11,18,.86) 46%,rgba(5,11,18,.55) 100%);
  }
  .cat-hero .container{position:relative;z-index:2;}
  .cat-hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;}
  .cat-hero h1{font-size:clamp(30px,5vw,50px);margin-bottom:20px;}
  .cat-hero h1 span{color:var(--primary);}
  .hero-lead{color:#B9C9DA;font-size:16.5px;line-height:1.85;max-width:560px;}
  .hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px;}
  .hero-points span{
    display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 14px;
    border-radius:999px;font-size:13px;color:#C7D6E5;
    background:rgba(255,255,255,.05);border:1px solid var(--line);
  }
  .hero-points span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
  .hero-visual{position:relative;}
  .hero-visual img{
    width:100%;aspect-ratio:16/11;object-fit:cover;
    border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.12);
    box-shadow:0 30px 60px -30px rgba(0,0,0,.9);
  }
  .hero-visual .float-tag{
    position:absolute;left:18px;bottom:18px;
    display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:999px;
    font-size:12.5px;color:#D6E4F0;background:rgba(5,11,18,.78);
    border:1px solid rgba(23,224,184,.35);backdrop-filter:blur(10px);
  }
  .hero-visual .float-tag i{width:7px;height:7px;border-radius:50%;background:var(--primary);display:block;}

  /* ---------- 左文右图 ---------- */
  .split{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center;}
  .split h2{font-size:clamp(23px,3vw,30px);margin-bottom:18px;}
  .split p{color:#AFC0D2;font-size:15.5px;line-height:1.95;}
  .split p + p{margin-top:16px;}
  .split-media img{
    width:100%;aspect-ratio:16/11;object-fit:cover;
    border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.1);
    box-shadow:var(--shadow);transition:transform .45s ease;
  }
  .split-media:hover img{transform:scale(1.03);}

  .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
  .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}

  .point{padding:26px;transition:border-color .25s ease,transform .25s ease;}
  .point:hover{border-color:rgba(23,224,184,.42);transform:translateY(-3px);}
  .point-idx{
    display:inline-flex;align-items:center;justify-content:center;
    width:34px;height:34px;border-radius:10px;margin-bottom:16px;
    font-size:13px;font-weight:700;color:var(--primary);
    background:rgba(23,224,184,.1);border:1px solid rgba(23,224,184,.3);
  }
  .point h3{font-size:19px;margin-bottom:10px;}
  .point p{color:var(--muted);font-size:14.5px;line-height:1.85;}

  /* ---------- 流程 ---------- */
  .flow-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
  .step{padding:26px 22px;}
  .step-num{
    font-size:30px;font-weight:800;color:rgba(23,224,184,.85);
    font-variant-numeric:tabular-nums;line-height:1;margin-bottom:16px;display:block;
  }
  .step h3{font-size:18px;margin-bottom:10px;}
  .step p{color:var(--muted);font-size:14px;line-height:1.85;}
  .step::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background:linear-gradient(90deg,rgba(23,224,184,.7),transparent);
    opacity:0;transition:opacity .3s ease;
  }
  .step:hover::after{opacity:1;}

  /* ---------- 横向滚动更新 ---------- */
  .hscroll{
    display:flex;gap:22px;overflow-x:auto;padding:6px 4px 20px;
    scroll-snap-type:x mandatory;
  }
  .hscroll::-webkit-scrollbar{height:6px;}
  .hscroll::-webkit-scrollbar-track{background:rgba(255,255,255,.04);border-radius:999px;}
  .hscroll::-webkit-scrollbar-thumb{background:rgba(23,224,184,.35);border-radius:999px;}
  .hscroll > *{flex:0 0 330px;scroll-snap-align:start;}
  .update-card{padding:24px;}
  .update-card .badge{margin-bottom:14px;}
  .update-card h3{font-size:17px;margin-bottom:10px;}
  .update-card p{color:var(--muted);font-size:14px;line-height:1.85;}
  .update-meta{margin-top:16px;font-size:13px;color:#7A8FA4;display:flex;gap:12px;align-items:center;}

  /* ---------- FAQ ---------- */
  .faq{max-width:880px;margin:0 auto;display:grid;gap:14px;}
  .faq-item{
    position:relative;overflow:hidden;border-radius:var(--radius);
    background:var(--glass);border:1px solid rgba(255,255,255,.09);
    transition:border-color .25s ease,background .25s ease;
  }
  .faq-item::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
    background:var(--primary);opacity:0;transition:opacity .3s ease;
  }
  .faq-item.open{border-color:rgba(23,224,184,.35);background:rgba(23,224,184,.05);}
  .faq-item.open::before{opacity:1;}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:20px 24px;text-align:left;font-size:16.5px;font-weight:600;
  }
  .faq-q:hover{color:var(--primary-hi);}
  .faq-icon{
    width:22px;height:22px;flex-shrink:0;color:var(--primary);
    transition:transform .32s ease;
  }
  .faq-item.open .faq-icon{transform:rotate(135deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease;}
  .faq-a p{padding:0 24px 22px;color:var(--muted);font-size:14.8px;line-height:1.95;}

  /* ---------- 表单 ---------- */
  .contact-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:start;}
  .contact-info h2{font-size:clamp(23px,3vw,30px);margin-bottom:16px;}
  .contact-info p{color:var(--muted);font-size:15px;line-height:1.9;}
  .contact-list{margin-top:26px;display:grid;gap:12px;}
  .contact-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#B9C9DA;}
  .contact-list li::before{content:"";width:6px;height:6px;border-radius:1px;background:var(--primary);margin-top:9px;flex-shrink:0;}
  .form-card{padding:30px;}
  .field{margin-bottom:18px;}
  .field label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px;}
  .field input,.field textarea,.field select{
    width:100%;border-radius:var(--radius-sm);
    background:rgba(255,255,255,.04);border:1px solid var(--line);
    padding:13px 15px;font-size:14.5px;outline:none;
    transition:border-color .25s ease,box-shadow .25s ease;
  }
  .field textarea{min-height:112px;resize:vertical;line-height:1.8;}
  .field input:focus,.field textarea:focus,.field select:focus{
    border-color:rgba(23,224,184,.7);
    box-shadow:0 0 0 3px rgba(23,224,184,.14);
  }
  .form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:22px;}
  .privacy{font-size:12.5px;color:#6F8298;line-height:1.7;max-width:320px;}
  .form-tip{margin-top:14px;font-size:13.5px;color:var(--primary);display:none;}
  .form-tip.show{display:block;}

  /* ---------- 分类互链 ---------- */
  .press-card{display:grid;grid-template-columns:200px 1fr;overflow:hidden;transition:border-color .25s ease,transform .25s ease;}
  .press-card:hover{border-color:rgba(23,224,184,.45);transform:translateY(-3px);}
  .press-media{overflow:hidden;}
  .press-media img{width:100%;height:100%;min-height:170px;object-fit:cover;}
  .press-body{padding:24px;display:flex;flex-direction:column;gap:10px;}
  .press-body h3{font-size:19px;}
  .press-body p{color:var(--muted);font-size:14.5px;line-height:1.85;}
  .press-more{margin-top:auto;font-size:13.5px;color:var(--primary);}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:40px;border-top:1px solid var(--line);
    background:linear-gradient(180deg,rgba(10,20,31,.6),rgba(5,11,18,.95));
    padding:64px 0 26px;
  }
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:44px;}
  .footer-brand .logo{margin-bottom:16px;}
  .footer-brand p{color:var(--muted);font-size:14px;line-height:1.85;max-width:280px;}
  .site-footer h4{font-size:14.5px;margin-bottom:18px;color:#D4E1EE;}
  .site-footer ul{display:grid;gap:11px;}
  .site-footer ul a{font-size:14px;color:var(--muted);}
  .site-footer ul a:hover{color:var(--primary);}
  .footer-bottom{
    margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
    display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
    font-size:13px;color:#6F8298;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .nav-search,.nav-links,.nav-cta{display:none;}
    .nav-toggle{display:grid;margin-left:auto;}
    .cat-hero-grid,.split,.contact-grid{grid-template-columns:1fr;gap:36px;}
    .flow-wrap{grid-template-columns:repeat(2,1fr);}
    .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px;}
    .section{padding:72px 0;}
    .hero-visual{order:-1;}
  }
  @media (max-width:640px){
    .container{padding:0 18px;}
    .cat-hero{padding:56px 0 64px;}
    .cat-hero h1{font-size:30px;}
    .hero-actions .btn{width:100%;}
    .grid-2,.grid-3,.grid-4,.flow-wrap{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .press-card{grid-template-columns:1fr;}
    .press-media img{min-height:150px;}
    .hscroll > *{flex:0 0 82%;}
    .form-foot{flex-direction:column;align-items:stretch;}
    .form-foot .btn{width:100%;}
    .privacy{max-width:none;}
    .section{padding:60px 0;}
    .section-head{margin-bottom:32px;}
    .footer-bottom{flex-direction:column;}
  }
  @media (hover:none){
    .point:hover,.split-media:hover img,.press-card:hover,.btn:hover{transform:none;}
  }

/* roulang page: category2 */
:root{
  --bg-0:#050B12;
  --bg-1:#0A141F;
  --bg-2:#0E1B28;
  --primary:#17E0B8;
  --primary-hi:#3DF0CC;
  --accent:#FFB443;
  --text:#E6EDF5;
  --muted:#8FA3B8;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.04);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --shadow:0 20px 45px -25px rgba(0,0,0,.8);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:normal;
  background:
    radial-gradient(1100px 640px at 10% -8%, rgba(23,224,184,.10), transparent 62%),
    radial-gradient(900px 560px at 92% 2%, rgba(255,180,67,.055), transparent 58%),
    var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
button,input{font-family:inherit;}
h1,h2,h3,h4{letter-spacing:-.01em;font-weight:700;margin:0;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid rgba(23,224,184,.75);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section-tight{padding:76px 0;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,11,18,.74);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,11,18,.93);
  border-bottom-color:var(--line-strong);
}
.nav-bar{
  display:grid;
  grid-template-columns:auto minmax(300px,460px) auto;
  align-items:center;
  gap:24px;
  height:74px;
}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:700;white-space:nowrap;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#0E9E86);
  color:#04120F;font-size:17px;font-weight:800;line-height:1;
  box-shadow:0 0 0 1px rgba(23,224,184,.45),0 10px 26px -14px rgba(23,224,184,.85);
}
.logo-text{font-size:17px;}
.nav-search{position:relative;}
.nav-search svg{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  width:18px;height:18px;color:#7C8FA5;pointer-events:none;transition:color .2s;
}
.nav-search input{
  width:100%;height:44px;border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
  color:var(--text);
  font-size:14.5px;
  padding:0 18px 0 44px;
  transition:border-color .2s var(--ease),box-shadow .25s var(--ease),background .2s var(--ease);
}
.nav-search input::placeholder{color:#7C8FA5;}
.nav-search input:focus{
  outline:none;
  border-color:rgba(23,224,184,.75);
  background:rgba(23,224,184,.06);
  box-shadow:0 0 0 4px rgba(23,224,184,.14);
}
.nav-search input:focus + svg,
.nav-search:focus-within svg{color:var(--primary);}
.nav-search-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line-strong);
  color:var(--muted);place-items:center;cursor:pointer;
  transition:color .2s,border-color .2s,background .2s;
}
.nav-search-toggle:hover{color:var(--primary);border-color:rgba(23,224,184,.4);}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  display:inline-flex;align-items:center;height:38px;padding:0 15px;
  border-radius:999px;border:1px solid transparent;
  color:var(--muted);font-size:14.5px;font-weight:500;text-decoration:none;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.06);}
.nav-links a.active{
  color:var(--primary);
  background:rgba(23,224,184,.10);
  border-color:rgba(23,224,184,.34);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{
  background:var(--primary);color:#04120F;
  box-shadow:0 0 0 1px rgba(23,224,184,.5),0 12px 32px -12px rgba(23,224,184,.65);
}
.btn-primary:hover{
  background:var(--primary-hi);transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(23,224,184,.62),0 20px 44px -12px rgba(23,224,184,.8);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(23,224,184,.5),0 8px 20px -14px rgba(23,224,184,.6);}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(23,224,184,.36);
  color:var(--primary);
}
.btn-ghost:hover{background:rgba(23,224,184,.10);border-color:rgba(23,224,184,.62);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}

/* ---------- Glass ---------- */
.glass{
  position:relative;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--r-md);
  box-shadow:var(--shadow);
}
.glass::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;border-radius:var(--r-md) var(--r-md) 0 0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.30),transparent);
  pointer-events:none;
}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  padding:84px 0 88px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(100deg, rgba(5,11,18,.94) 0%, rgba(5,11,18,.78) 42%, rgba(5,11,18,.42) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.9;
  z-index:0;
}
.cat-hero .container{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:999px;
  background:rgba(23,224,184,.10);
  border:1px solid rgba(23,224,184,.30);
  color:var(--primary);font-size:12.5px;font-weight:600;letter-spacing:.04em;
  margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(23,224,184,.9);}
.cat-hero h1{
  font-size:44px;line-height:1.22;
  margin-bottom:20px;
}
.cat-hero h1 .hl{color:var(--primary);}
.hero-sub{
  color:var(--muted);font-size:17px;line-height:1.8;
  max-width:620px;margin-bottom:22px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.hero-tags span{
  font-size:13px;color:var(--muted);
  padding:6px 14px;border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{
  margin:0;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:0 34px 70px -34px rgba(0,0,0,.9);
  background:var(--bg-1);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ---------- Section head ---------- */
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:32px;line-height:1.3;margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15px;}

/* ---------- Data strip ---------- */
.data-strip{
  padding:52px 0;
  background:linear-gradient(180deg, rgba(14,27,40,.85), rgba(10,20,31,.55));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.data-cell{
  padding:22px 22px 20px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(255,255,255,.025);
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.data-cell:hover{border-color:rgba(23,224,184,.35);transform:translateY(-3px);}
.data-num{
  font-size:32px;font-weight:800;line-height:1.1;color:var(--primary);
  font-variant-numeric:tabular-nums;
  display:flex;align-items:baseline;gap:6px;flex-wrap:wrap;
  margin-bottom:10px;
}
.data-num em{font-style:normal;font-size:13px;font-weight:500;color:var(--muted);}
.data-cell p{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ---------- Feature rows ---------- */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--line);}
.feature-row.reverse .feature-media{order:2;}
.feature-row.reverse .feature-copy{order:1;}
.feature-media{
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:0 28px 60px -32px rgba(0,0,0,.9);
}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s var(--ease);}
.feature-media:hover img{transform:scale(1.03);}
.feature-copy h3{font-size:22px;margin-bottom:14px;}
.feature-copy > p{color:var(--muted);font-size:15px;margin-bottom:22px;}
.feature-list li{
  position:relative;
  padding-left:22px;
  margin-bottom:12px;
  font-size:14.5px;
  color:#C7D4E2;
  line-height:1.75;
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:8px;height:8px;border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(23,224,184,.7);
}
.feature-list li strong{color:var(--text);font-weight:600;}

/* ---------- Process ---------- */
.process-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{
  position:relative;padding:28px 22px 24px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  transition:border-color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease);
}
.step:hover{border-color:rgba(23,224,184,.4);background:rgba(23,224,184,.05);transform:translateY(-4px);}
.step-no{
  display:inline-grid;place-items:center;
  width:34px;height:34px;border-radius:10px;
  background:rgba(23,224,184,.12);
  border:1px solid rgba(23,224,184,.35);
  color:var(--primary);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:10px;}
.step p{font-size:13.5px;color:var(--muted);line-height:1.75;}

/* ---------- Scenario cards ---------- */
.scenario-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:24px;}
.scenario-card{
  padding:30px 26px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  transition:border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.scenario-card:hover{border-color:rgba(23,224,184,.38);transform:translateY(-4px);box-shadow:var(--shadow);}
.scenario-card.major{
  background:linear-gradient(160deg, rgba(23,224,184,.10), rgba(255,255,255,.02) 60%);
  border-color:rgba(23,224,184,.34);
  box-shadow:0 0 0 1px rgba(23,224,184,.14),0 26px 60px -32px rgba(23,224,184,.35);
}
.scenario-card h3{font-size:19px;margin-bottom:12px;}
.scenario-card p{font-size:14px;color:var(--muted);line-height:1.8;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(23,224,184,.12);color:var(--primary);
  border:1px solid rgba(23,224,184,.3);
  margin-bottom:16px;
}
.badge-amber{background:rgba(255,180,67,.12);color:var(--accent);border-color:rgba(255,180,67,.32);}
.badge-mute{background:rgba(255,255,255,.05);color:var(--muted);border-color:var(--line-strong);}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;}
.faq-item{
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-top:1px solid rgba(255,255,255,.09);
  border-bottom:1px solid rgba(255,255,255,.09);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.faq-item.open{border-color:rgba(23,224,184,.28);box-shadow:0 24px 50px -32px rgba(0,0,0,.95);}
.faq-q{
  position:relative;
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;
  background:none;border:0;color:var(--text);
  font-size:16px;font-weight:600;text-align:left;cursor:pointer;
  transition:color .2s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--primary);border-radius:0 3px 3px 0;
  transform:scaleY(0);transform-origin:center;
  transition:transform .28s var(--ease);
}
.faq-item.open .faq-q::before{transform:scaleY(1);}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  position:relative;flex:0 0 16px;width:16px;height:16px;
  transition:transform .3s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:opacity .25s var(--ease),transform .25s var(--ease);
}
.faq-icon::before{left:0;right:0;top:7px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:7px;width:2px;}
.faq-item.open .faq-icon{transform:rotate(90deg);}
.faq-item.open .faq-icon::after{opacity:0;transform:scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease);}
.faq-a-inner{padding:0 24px 22px 25px;color:var(--muted);font-size:14.5px;line-height:1.85;}

/* ---------- CTA ---------- */
.cta-block{
  padding:52px 48px;
  border-radius:var(--r-lg);
  border:1px solid rgba(23,224,184,.26);
  background:
    radial-gradient(700px 300px at 88% -40%, rgba(23,224,184,.20), transparent 65%),
    linear-gradient(150deg, rgba(14,27,40,.95), rgba(10,20,31,.85));
  box-shadow:0 0 0 1px rgba(23,224,184,.08),0 30px 70px -38px rgba(23,224,184,.4);
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-block h2{font-size:28px;line-height:1.35;margin-bottom:12px;}
.cta-block p{color:var(--muted);font-size:15px;max-width:640px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- Related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  display:flex;flex-direction:column;
  padding:28px 26px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  text-decoration:none;
  transition:border-color .25s var(--ease),transform .25s var(--ease),background .25s var(--ease);
}
.related-card:hover{
  border-color:rgba(23,224,184,.5);
  background:rgba(23,224,184,.05);
  transform:translateY(-4px);
}
.related-card h3{font-size:19px;margin-bottom:10px;}
.related-card p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:20px;}
.related-link{
  margin-top:auto;font-size:14px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:8px;
}
.related-card:hover .related-link{gap:12px;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:24px;
  padding:72px 0 28px;
  background:linear-gradient(180deg, rgba(10,20,31,.6), rgba(5,11,18,.95));
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid var(--line);
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.8;max-width:280px;}
.site-footer h4{
  font-size:14px;color:var(--text);margin-bottom:18px;font-weight:600;letter-spacing:.02em;
}
.site-footer ul li{margin-bottom:12px;}
.site-footer ul li a{
  color:var(--muted);font-size:14px;text-decoration:none;
  transition:color .2s var(--ease);
}
.site-footer ul li a:hover{color:var(--primary);}
.footer-bottom{
  padding-top:24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--muted);font-size:13.5px;
}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .nav-bar{grid-template-columns:auto minmax(200px,1fr) auto;gap:16px;height:70px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-media{order:-1;}
  .cat-hero h1{font-size:38px;}
  .data-grid{grid-template-columns:repeat(2,1fr);}
  .process-wrap{grid-template-columns:repeat(2,1fr);}
  .scenario-grid{grid-template-columns:1fr 1fr;}
  .scenario-card.major{grid-column:1/-1;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .feature-row{grid-template-columns:1fr;gap:32px;}
  .feature-row.reverse .feature-media{order:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .section{padding:68px 0;}
  .section-tight{padding:56px 0;}
  .container{padding:0 18px;}
  .section-head{margin-bottom:34px;}
  .section-head h2{font-size:24px;}
  .cat-hero{padding:56px 0 60px;}
  .cat-hero h1{font-size:30px;line-height:1.3;}
  .hero-sub{font-size:15.5px;}
  .cta-block{padding:34px 24px;}
  .cta-block h2{font-size:22px;}
  .data-grid{gap:14px;}
  .data-num{font-size:26px;}
  .process-wrap{grid-template-columns:1fr;}
  .scenario-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:639px){
  .nav-bar{
    display:flex;flex-wrap:wrap;align-items:center;
    gap:10px;height:auto;padding:11px 0 12px;
  }
  .logo{order:1;margin-right:auto;}
  .nav-search-toggle{order:2;display:inline-grid;}
  .nav-links{order:3;width:100%;overflow-x:auto;gap:4px;padding-bottom:2px;scrollbar-width:none;}
  .nav-links::-webkit-scrollbar{display:none;}
  .nav-links a{height:34px;padding:0 13px;font-size:13.5px;flex:0 0 auto;}
  .nav-search{order:4;display:none;width:100%;max-width:none;}
  .nav-bar.search-open .nav-search{display:block;}
  .btn{height:46px;padding:0 22px;font-size:14.5px;}
  .hero-actions .btn{flex:1 1 auto;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}