/* roulang page: index */
:root{
      --bg:#07131f;
      --bg2:#0b1a29;
      --panel:rgba(10,25,40,.74);
      --panel-strong:rgba(12,28,44,.9);
      --line:rgba(123,182,214,.18);
      --line-strong:rgba(123,182,214,.28);
      --text:#edf6ff;
      --muted:#a6bfd3;
      --soft:#7c96ab;
      --primary:#57d6d1;
      --primary-2:#26b6ff;
      --accent:#ff9a62;
      --accent-2:#9e7bff;
      --warn:#ffb46a;
      --shadow:0 18px 42px rgba(0,0,0,.34);
      --shadow-soft:0 10px 24px rgba(0,0,0,.22);
      --radius:14px;
      --radius-sm:10px;
      --gap:24px;
      --container:1260px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      background:
        linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0)),
        radial-gradient(circle at 20% 0%, rgba(38,182,255,.10), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(87,214,209,.08), transparent 22%),
        var(--bg);
      color:var(--text);
      line-height:1.75;
      letter-spacing:0;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.85), rgba(0,0,0,.28));
      opacity:.38;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--primary)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    ::selection{background:rgba(87,214,209,.28);color:#fff}

    .grid-container{max-width:var(--container)}
    .site-header{
      position:sticky;
      top:0;
      z-index:60;
      backdrop-filter:blur(14px);
      background:rgba(7,19,31,.78);
      border-bottom:1px solid var(--line);
    }
    .header-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:16px 0;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
      color:var(--text);
      font-weight:800;
      letter-spacing:0;
    }
    .brand-mark{
      width:38px;height:38px;
      border-radius:12px;
      display:grid;
      place-items:center;
      background:
        linear-gradient(145deg, rgba(87,214,209,.18), rgba(38,182,255,.12));
      border:1px solid rgba(87,214,209,.24);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.03);
      color:var(--primary);
      flex:0 0 auto;
      font-weight:900;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      min-width:0;
    }
    .brand-text strong{
      font-size:17px;
      line-height:1.2;
      white-space:nowrap;
    }
    .brand-text span{
      font-size:12px;
      color:var(--muted);
      white-space:nowrap;
    }

    .nav-toggle{
      display:none;
      align-items:center;
      justify-content:center;
      gap:8px;
      border:1px solid var(--line-strong);
      background:rgba(11,26,41,.82);
      color:var(--text);
      border-radius:12px;
      height:44px;
      padding:0 14px;
      cursor:pointer;
      transition:transform .2s ease, border-color .2s ease, background .2s ease;
    }
    .nav-toggle:hover{transform:translateY(-1px);border-color:rgba(87,214,209,.35);background:rgba(14,31,49,.92)}
    .nav-toggle:focus-visible{outline:3px solid rgba(87,214,209,.35);outline-offset:2px}

    .site-nav{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
    }
    .site-nav a{
      position:relative;
      padding:10px 14px;
      color:var(--muted);
      border:1px solid transparent;
      border-radius:12px;
      transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
      font-size:14px;
      line-height:1.2;
    }
    .site-nav a:hover{
      color:var(--text);
      background:rgba(255,255,255,.03);
      border-color:var(--line);
      transform:translateY(-1px);
    }
    .site-nav a.active,
    .site-nav a[aria-current="page"]{
      color:var(--text);
      background:linear-gradient(145deg, rgba(87,214,209,.13), rgba(38,182,255,.11));
      border-color:rgba(87,214,209,.28);
      box-shadow:0 0 0 1px rgba(87,214,209,.05), 0 12px 20px rgba(0,0,0,.18);
    }
    .site-nav a.active::after,
    .site-nav a[aria-current="page"]::after{
      content:"";
      position:absolute;
      left:14px;
      right:14px;
      bottom:6px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg, var(--primary), var(--primary-2));
      opacity:.9;
    }

    .hero{
      position:relative;
      padding:44px 0 28px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(7,19,31,.28), rgba(7,19,31,.96)),
        radial-gradient(circle at 10% 15%, rgba(87,214,209,.10), transparent 24%),
        radial-gradient(circle at 78% 22%, rgba(158,123,255,.10), transparent 23%);
      z-index:-2;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:28px;
      align-items:stretch;
      min-height:calc(84vh - 100px);
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:18px;
      padding:24px 0 44px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#d6f7f3;
      background:rgba(87,214,209,.1);
      border:1px solid rgba(87,214,209,.24);
      border-radius:999px;
      padding:8px 12px;
      font-size:13px;
      width:max-content;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.02);
    }
    .eyebrow i{
      width:8px;height:8px;border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 4px rgba(87,214,209,.14);
      display:inline-block;
    }
    .hero h1{
      margin:0;
      font-size:clamp(32px, 5vw, 58px);
      line-height:1.12;
      letter-spacing:0;
      max-width:12ch;
    }
    .hero-lead{
      max-width:44rem;
      color:var(--muted);
      font-size:16px;
      line-height:1.9;
      margin:0;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      margin-top:4px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 18px;
      border-radius:12px;
      border:1px solid transparent;
      cursor:pointer;
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
      font-weight:700;
      letter-spacing:0;
      line-height:1;
      white-space:nowrap;
    }
    .btn svg{width:16px;height:16px;flex:0 0 auto}
    .btn-primary{
      color:#07131f;
      background:linear-gradient(135deg, var(--primary), #7cf0db);
      box-shadow:0 12px 24px rgba(87,214,209,.22), 0 0 0 1px rgba(87,214,209,.18);
    }
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(87,214,209,.28), 0 0 0 1px rgba(87,214,209,.24)}
    .btn-secondary{
      color:var(--text);
      background:rgba(13,31,48,.58);
      border-color:var(--line-strong);
      box-shadow:var(--shadow-soft);
    }
    .btn-secondary:hover{transform:translateY(-1px);border-color:rgba(87,214,209,.32);background:rgba(13,31,48,.78)}
    .btn-ghost{
      color:var(--muted);
      background:transparent;
      border-color:transparent;
      padding-inline:10px;
      min-height:40px;
    }
    .btn-ghost:hover{color:var(--text);background:rgba(255,255,255,.03);border-color:var(--line)}
    .btn:focus-visible{outline:3px solid rgba(87,214,209,.35);outline-offset:2px}

    .hero-metrics{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:4px;
    }
    .metric{
      min-width:140px;
      flex:1 1 140px;
      background:rgba(11,26,41,.62);
      border:1px solid var(--line);
      border-radius:14px;
      padding:14px 15px;
    }
    .metric strong{
      display:block;
      font-size:20px;
      line-height:1.1;
      color:#fff;
      margin-bottom:4px;
    }
    .metric span{
      display:block;
      font-size:13px;
      color:var(--muted);
    }

    .hero-panel{
      position:relative;
      align-self:center;
      background:linear-gradient(180deg, rgba(11,26,41,.82), rgba(11,26,41,.64));
      border:1px solid rgba(123,182,214,.16);
      border-radius:22px;
      padding:22px;
      box-shadow:var(--shadow);
      backdrop-filter:blur(16px);
    }
    .panel-head{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:10px;
      margin-bottom:18px;
    }
    .panel-title{
      font-size:18px;
      font-weight:800;
      margin:0;
    }
    .panel-sub{
      margin:4px 0 0;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
    }
    .panel-pill{
      font-size:12px;
      color:#dffffa;
      background:rgba(87,214,209,.12);
      border:1px solid rgba(87,214,209,.22);
      border-radius:999px;
      padding:6px 10px;
      white-space:nowrap;
      flex:0 0 auto;
    }
    .console{
      display:grid;
      gap:12px;
    }
    .console-top{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:12px;
    }
    .console-card{
      background:rgba(255,255,255,.02);
      border:1px solid var(--line);
      border-radius:16px;
      padding:16px;
      min-height:124px;
    }
    .console-card h3{
      margin:0 0 8px;
      font-size:15px;
      color:#fff;
    }
    .console-card p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
    }
    .tag-list{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:12px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      padding:6px 10px;
      font-size:12px;
      color:#d7ebff;
      background:rgba(38,182,255,.08);
      border:1px solid rgba(38,182,255,.18);
    }
    .tag.warn{
      color:#ffe7d5;
      background:rgba(255,154,98,.08);
      border-color:rgba(255,154,98,.18);
    }
    .tag.good{
      color:#dbfff8;
      background:rgba(87,214,209,.08);
      border-color:rgba(87,214,209,.18);
    }
    .steps{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .steps li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:10px 0;
      border-top:1px solid rgba(123,182,214,.10);
    }
    .steps li:first-child{border-top:none;padding-top:0}
    .step-index{
      width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;
      flex:0 0 auto;
      background:linear-gradient(135deg, rgba(87,214,209,.18), rgba(38,182,255,.12));
      border:1px solid rgba(87,214,209,.22);
      color:#fff;
      font-weight:800;
      font-size:12px;
    }
    .steps strong{
      display:block;
      font-size:14px;
      margin-bottom:2px;
    }
    .steps span{
      display:block;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
    }

    .section{
      padding:28px 0 0;
    }
    .section:last-of-type{padding-bottom:14px}
    .section-band{
      margin-top:48px;
      padding:44px 0;
      background:
        linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0)),
        rgba(6,16,25,.72);
      border-top:1px solid rgba(123,182,214,.10);
      border-bottom:1px solid rgba(123,182,214,.08);
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:18px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(24px, 3vw, 36px);
      line-height:1.18;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      max-width:44rem;
      font-size:15px;
      line-height:1.8;
    }

    .glass{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:18px;
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(14px);
    }
    .toolbox{
      padding:18px;
    }
    .tool-grid{
      display:grid;
      grid-template-columns:1.5fr .8fr .8fr .7fr auto;
      gap:12px;
      align-items:end;
    }
    .field label{
      display:block;
      margin-bottom:8px;
      font-size:13px;
      color:var(--muted);
    }
    .field input,
    .field select{
      width:100%;
      height:46px;
      background:rgba(6,16,25,.82);
      color:var(--text);
      border:1px solid rgba(123,182,214,.18);
      border-radius:12px;
      padding:0 14px;
      box-shadow:none;
      transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .field input::placeholder{color:#7f97ab}
    .field input:focus,
    .field select:focus{
      border-color:rgba(87,214,209,.42);
      box-shadow:0 0 0 3px rgba(87,214,209,.14);
      background:rgba(9,20,32,.92);
    }

    .tool-actions{
      display:flex;
      gap:10px;
      align-items:center;
      justify-content:flex-end;
      flex-wrap:wrap;
    }

    .chip-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 12px;
      border-radius:999px;
      border:1px solid rgba(123,182,214,.16);
      background:rgba(255,255,255,.02);
      color:var(--text);
      font-size:13px;
      line-height:1;
    }
    .chip b{
      color:var(--primary);
      font-weight:800;
    }
    .chip:hover{
      border-color:rgba(87,214,209,.30);
      background:rgba(87,214,209,.06);
    }

    .two-col{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:18px;
    }
    .feature-spot{
      padding:20px;
      min-height:100%;
    }
    .feature-spot h3{
      margin:0 0 10px;
      font-size:20px;
      line-height:1.25;
    }
    .feature-spot p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.85;
    }
    .feature-list{
      display:grid;
      gap:12px;
      margin-top:18px;
    }
    .feature-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px;
      border-radius:14px;
      border:1px solid rgba(123,182,214,.12);
      background:rgba(255,255,255,.02);
    }
    .feature-dot{
      width:12px;height:12px;border-radius:50%;
      margin-top:5px;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow:0 0 0 5px rgba(87,214,209,.10);
      flex:0 0 auto;
    }
    .feature-item strong{
      display:block;
      font-size:15px;
      margin-bottom:2px;
    }
    .feature-item span{
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
    }

    .card-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }
    .card{
      padding:18px;
      background:rgba(11,26,41,.72);
      border:1px solid var(--line);
      border-radius:16px;
      box-shadow:var(--shadow-soft);
      transition:transform .2s ease,border-color .2s ease,background .2s ease;
    }
    .card:hover{
      transform:translateY(-2px);
      border-color:rgba(87,214,209,.24);
      background:rgba(12,29,45,.9);
    }
    .card h3,
    .card h4{
      margin:0 0 8px;
      font-size:18px;
      line-height:1.3;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }
    .card .meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:14px;
    }

    .link-card{
      display:block;
      height:100%;
      color:inherit;
    }
    .link-card .meta{
      margin-top:14px;
    }
    .summary-box{
      display:grid;
      gap:14px;
    }
    .summary-wide{
      padding:22px;
    }

    .scenario-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:16px;
    }
    .scenario{
      padding:18px;
      min-height:100%;
    }
    .scenario .icon{
      width:42px;height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(87,214,209,.14), rgba(38,182,255,.10));
      border:1px solid rgba(87,214,209,.20);
      margin-bottom:14px;
      color:#fff;
    }
    .scenario h3{
      margin:0 0 8px;
      font-size:18px;
    }
    .scenario p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }

    .proof-band{
      padding:20px;
      background:
        linear-gradient(90deg, rgba(87,214,209,.06), rgba(38,182,255,.03) 40%, rgba(255,154,98,.04));
    }
    .proof-grid{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:18px;
      align-items:stretch;
    }
    .stat-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:12px;
    }
    .stat{
      padding:18px;
      border-radius:16px;
      border:1px solid rgba(123,182,214,.14);
      background:rgba(255,255,255,.02);
    }
    .stat strong{
      display:block;
      font-size:28px;
      line-height:1.1;
      margin-bottom:6px;
      color:#fff;
    }
    .stat span{
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
    }
    .compare-strip{
      display:grid;
      gap:10px;
      margin-top:14px;
    }
    .compare-row{
      display:grid;
      grid-template-columns:.8fr 1fr 1fr;
      gap:10px;
      padding:13px 14px;
      border-radius:14px;
      background:rgba(255,255,255,.02);
      border:1px solid rgba(123,182,214,.12);
      font-size:13px;
      color:var(--muted);
    }
    .compare-row strong{color:#fff}
    .compare-row em{font-style:normal;color:var(--primary)}
    .scroll-case{
      overflow-x:auto;
      padding-bottom:6px;
    }
    .case-track{
      display:grid;
      grid-auto-flow:column;
      grid-auto-columns:minmax(260px,1fr);
      gap:14px;
      min-width:max-content;
    }
    .case{
      padding:18px;
      border-radius:16px;
      background:rgba(11,26,41,.72);
      border:1px solid var(--line);
      min-width:260px;
    }
    .case .kpi{
      display:flex;
      gap:10px;
      align-items:baseline;
      margin-bottom:10px;
    }
    .case .kpi strong{
      font-size:28px;
      line-height:1;
      color:#fff;
    }
    .case .kpi span{
      color:var(--primary);
      font-size:13px;
    }
    .case p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }

    .pricing-wrap{
      padding:20px;
    }
    .pricing-note{
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
      margin:0 0 16px;
    }
    .price-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0 10px;
      min-width:860px;
    }
    .price-table thead th{
      color:#dfefff;
      text-align:left;
      font-size:13px;
      font-weight:700;
      padding:0 12px 6px;
    }
    .price-table tbody td{
      background:rgba(255,255,255,.02);
      border-top:1px solid rgba(123,182,214,.12);
      border-bottom:1px solid rgba(123,182,214,.12);
      padding:16px 12px;
      color:var(--muted);
      font-size:14px;
      vertical-align:top;
    }
    .price-table tbody td:first-child{
      border-left:1px solid rgba(123,182,214,.12);
      border-top-left-radius:14px;
      border-bottom-left-radius:14px;
      color:#fff;
      font-weight:700;
    }
    .price-table tbody td:last-child{
      border-right:1px solid rgba(123,182,214,.12);
      border-top-right-radius:14px;
      border-bottom-right-radius:14px;
    }
    .price-tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      padding:6px 10px;
      background:rgba(87,214,209,.10);
      color:#e8fffd;
      border:1px solid rgba(87,214,209,.16);
      font-size:12px;
      margin-bottom:10px;
    }
    .price{
      font-size:22px;
      line-height:1;
      font-weight:800;
      color:#fff;
      margin:0 0 10px;
    }
    .price-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:8px;
    }
    .price-list li{
      display:flex;
      gap:8px;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
    }
    .price-list li::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      margin-top:7px;
      background:var(--primary);
      flex:0 0 auto;
      box-shadow:0 0 0 4px rgba(87,214,209,.10);
    }
    .price-cell{
      display:flex;
      flex-direction:column;
      gap:12px;
    }

    .news-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:16px;
      align-items:start;
    }
    .news-list{
      display:grid;
      gap:10px;
    }
    .news-item{
      display:flex;
      justify-content:space-between;
      gap:14px;
      align-items:center;
      padding:14px 16px;
      border-radius:14px;
      background:rgba(255,255,255,.02);
      border:1px solid rgba(123,182,214,.12);
      transition:border-color .2s ease, transform .2s ease;
    }
    .news-item:hover{
      transform:translateY(-1px);
      border-color:rgba(87,214,209,.24);
    }
    .news-item strong{
      display:block;
      font-size:15px;
      line-height:1.4;
      color:#fff;
      margin-bottom:4px;
    }
    .news-item span{
      display:block;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
    }
    .news-item .arrow{
      color:var(--primary);
      flex:0 0 auto;
      font-size:18px;
    }
    .news-side{
      padding:20px;
    }
    .side-list{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .side-list li{
      padding:12px 14px;
      border-radius:14px;
      background:rgba(255,255,255,.02);
      border:1px solid rgba(123,182,214,.12);
      color:var(--muted);
      font-size:13px;
      line-height:1.75;
    }
    .side-list strong{color:#fff}

    .accordion{
      background:transparent;
      border:none;
      margin:0;
    }
    .accordion-item{
      border:1px solid var(--line);
      border-radius:16px;
      overflow:hidden;
      margin-bottom:12px;
      background:rgba(11,26,41,.68);
      box-shadow:var(--shadow-soft);
    }
    .accordion-title{
      color:#fff;
      font-size:16px;
      line-height:1.5;
      padding:16px 18px;
      background:transparent;
      border:none;
    }
    .accordion-title:hover,
    .accordion-title:focus{
      background:rgba(255,255,255,.02);
      color:#fff;
    }
    .accordion-title::before{
      right:18px;
      margin-top:-6px;
      border-color:var(--primary);
    }
    .accordion-content{
      color:var(--muted);
      font-size:14px;
      line-height:1.9;
      padding:0 18px 18px;
      background:transparent;
      border:none;
    }

    .compliance-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
      margin-top:16px;
    }
    .notice{
      padding:16px;
      border-radius:16px;
      background:rgba(255,255,255,.02);
      border:1px solid rgba(123,182,214,.12);
    }
    .notice h3{
      margin:0 0 8px;
      font-size:16px;
    }
    .notice p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.8;
    }

    .site-footer{
      margin-top:42px;
      padding:34px 0 24px;
      background:#06101a;
      border-top:1px solid rgba(123,182,214,.10);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:20px;
      align-items:start;
    }
    .footer-brand{
      display:grid;
      gap:12px;
    }
    .footer-brand h2{
      margin:0;
      font-size:22px;
      line-height:1.25;
    }
    .footer-brand p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
      max-width:42rem;
    }
    .footer-links{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:10px 14px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      line-height:1.6;
    }
    .footer-links a:hover{color:#fff}
    .footer-bar{
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:12px;
      padding-top:18px;
      margin-top:18px;
      border-top:1px solid rgba(123,182,214,.10);
      color:var(--soft);
      font-size:13px;
      line-height:1.7;
    }
    .back-top{
      color:#fff;
      border:1px solid rgba(87,214,209,.18);
      background:rgba(87,214,209,.08);
      padding:8px 12px;
      border-radius:999px;
    }

    .legal-anchor{
      margin-top:12px;
      padding-top:12px;
      border-top:1px dashed rgba(123,182,214,.14);
      color:var(--soft);
      font-size:13px;
      line-height:1.8;
    }

    .age-strip{
      margin-top:16px;
      padding:14px 16px;
      border-radius:14px;
      background:rgba(255,154,98,.08);
      border:1px solid rgba(255,154,98,.20);
      color:#ffe9da;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      justify-content:space-between;
    }
    .age-strip p{
      margin:0;
      font-size:13px;
      line-height:1.8;
      color:#ffe7d5;
    }
    .age-strip .btn{min-height:40px}

    .section-title-row{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:18px;
      margin-bottom:16px;
    }
    .section-title-row .mini{
      color:var(--muted);
      font-size:13px;
      line-height:1.8;
      max-width:32rem;
    }

    .top-spacing{padding-top:14px}
    .small-muted{color:var(--muted);font-size:13px;line-height:1.8}
    .divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(123,182,214,.16), transparent);
      margin:18px 0;
    }

    .section-compact{padding-top:22px}
    .panel-mini{
      padding:16px;
      border-radius:14px;
      background:rgba(255,255,255,.02);
      border:1px solid rgba(123,182,214,.12);
    }

    .hero-foot{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      align-items:center;
      margin-top:8px;
    }

    .visually-quiet{
      color:var(--soft);
      font-size:12px;
      line-height:1.6;
    }

    .nav-shadow{
      box-shadow:0 10px 24px rgba(0,0,0,.12);
    }

    @media (max-width: 1024px){
      .hero-grid,
      .two-col,
      .proof-grid,
      .news-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .scenario-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .tool-grid{
        grid-template-columns:1fr 1fr;
      }
      .tool-actions{
        justify-content:flex-start;
      }
      .compliance-grid{
        grid-template-columns:1fr;
      }
      .card-grid{
        grid-template-columns:1fr;
      }
      .hero h1{
        max-width:none;
      }
      .hero-copy{
        padding-bottom:18px;
      }
      .hero-grid{
        min-height:auto;
      }
      .price-table{
        min-width:760px;
      }
    }

    @media (max-width: 768px){
      .header-inner{
        padding:14px 0;
      }
      .nav-toggle{display:inline-flex}
      .site-nav{
        display:none;
        width:100%;
        margin-top:12px;
        padding:12px;
        border-radius:16px;
        border:1px solid var(--line);
        background:rgba(11,26,41,.92);
        flex-direction:column;
        align-items:stretch;
      }
      .site-nav.is-open{display:flex}
      .site-nav a{
        width:100%;
        padding:14px 16px;
      }
      .site-nav a.active::after,
      .site-nav a[aria-current="page"]::after{
        left:16px;
        right:16px;
      }
      .scenario-grid{
        grid-template-columns:1fr;
      }
      .tool-grid{
        grid-template-columns:1fr;
      }
      .section{
        padding-top:22px;
      }
      .section-band{
        padding:34px 0;
      }
      .hero{
        padding-top:24px;
      }
      .hero-actions{
        gap:10px;
      }
      .hero-metrics{
        gap:10px;
      }
      .compare-row{
        grid-template-columns:1fr;
      }
      .price-table{
        min-width:680px;
      }
      .footer-links{
        grid-template-columns:1fr;
      }
      .panel-head{
        flex-direction:column;
      }
      .console-top{
        grid-template-columns:1fr;
      }
    }

    @media (max-width: 520px){
      .brand-text span{display:none}
      .brand-text strong{font-size:15px}
      .hero h1{font-size:clamp(30px, 10vw, 38px)}
      .hero-lead{font-size:15px}
      .btn{
        width:100%;
      }
      .hero-actions .btn{
        width:auto;
        flex:1 1 100%;
      }
      .hero-actions .btn-ghost{
        justify-content:flex-start;
      }
      .metric{
        min-width:calc(50% - 6px);
      }
      .age-strip{
        align-items:flex-start;
      }
      .age-strip .btn{
        width:100%;
      }
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
      .section-title-row{
        flex-direction:column;
        align-items:flex-start;
      }
      .price-table{
        min-width:620px;
      }
      .footer-bar{
        flex-direction:column;
        align-items:flex-start;
      }
    }

    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      *,*::before,*::after{
        transition:none !important;
        animation:none !important;
      }
    }

/* roulang page: category1 */
:root{
      --bg:#06111f;
      --bg-2:#091a2e;
      --bg-3:#0d2138;
      --panel:rgba(12,34,58,.76);
      --panel-strong:rgba(14,43,72,.92);
      --line:rgba(129,210,230,.20);
      --line-strong:rgba(113,232,221,.42);
      --text:#eef8ff;
      --muted:#a6bed0;
      --soft:#7892a5;
      --cyan:#65f2dc;
      --cyan-2:#28c7e7;
      --warm:#ffb071;
      --danger:#ff806f;
      --ok:#64e8a7;
      --shadow:0 22px 60px rgba(0,0,0,.35);
      --glow:0 0 0 1px rgba(101,242,220,.18),0 0 26px rgba(40,199,231,.16);
      --radius:16px;
      --radius-sm:10px;
      --max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      line-height:1.75;
      background:
        linear-gradient(rgba(101,242,220,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(101,242,220,.035) 1px, transparent 1px),
        radial-gradient(circle at 12% 10%, rgba(40,199,231,.14), transparent 34%),
        linear-gradient(180deg,#06111f 0%,#071523 45%,#050c16 100%);
      background-size:34px 34px,34px 34px,100% 100%,100% 100%;
      overflow-x:hidden;
    }
    body.nav-open{overflow:hidden}
    a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease}
    img{max-width:100%;display:block}
    button,input,select{font:inherit}
    button{cursor:pointer}
    .grid-container{max-width:var(--max)}
    .skip-link{position:absolute;left:-999px;top:12px;background:var(--cyan);color:#04202a;padding:10px 14px;border-radius:8px;z-index:1000}
    .skip-link:focus{left:12px}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(5,17,31,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(113,232,221,.18);
    }
    .nav-shadow{box-shadow:0 10px 30px rgba(0,0,0,.25)}
    .header-inner{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:12px;min-width:260px}
    .brand-mark{
      width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
      color:#031b22;font-weight:900;background:linear-gradient(135deg,var(--cyan),var(--warm));
      box-shadow:0 0 24px rgba(101,242,220,.24);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.25}
    .brand-text strong{font-size:17px;letter-spacing:.01em;color:#fff}
    .brand-text span{font-size:12px;color:var(--muted);margin-top:3px}
    .site-nav{display:flex;align-items:center;gap:8px}
    .site-nav a{
      position:relative;display:inline-flex;align-items:center;min-height:42px;padding:9px 14px;border-radius:11px;
      color:#c5d9e8;font-size:14px;border:1px solid transparent;
    }
    .site-nav a:hover{color:#fff;background:rgba(101,242,220,.08);border-color:rgba(101,242,220,.18);transform:translateY(-1px)}
    .site-nav a.active{color:#06151d;background:linear-gradient(135deg,rgba(101,242,220,.95),rgba(40,199,231,.86));border-color:rgba(255,255,255,.18);box-shadow:0 0 24px rgba(101,242,220,.22)}
    .site-nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:-10px;height:2px;border-radius:2px;background:var(--cyan)}
    .nav-toggle{display:none;align-items:center;gap:8px;border:1px solid var(--line);background:rgba(12,34,58,.72);color:var(--text);border-radius:10px;padding:10px 12px}
    .nav-toggle svg{width:20px;height:20px}
    .nav-toggle:hover,.nav-toggle:focus{border-color:var(--line-strong);box-shadow:var(--glow);outline:none}
    .section{padding:86px 0;position:relative}
    .section.tight{padding:58px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;font-weight:700;padding:6px 10px;border:1px solid rgba(101,242,220,.22);border-radius:999px;background:rgba(101,242,220,.06)}
    .eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
    .page-hero{padding:70px 0 50px;position:relative;overflow:hidden;border-bottom:1px solid rgba(113,232,221,.12)}
    .page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(101,242,220,.08),transparent 42%),linear-gradient(270deg,rgba(255,176,113,.07),transparent 52%);pointer-events:none}
    .hero-title{font-size:clamp(30px,4.4vw,48px);line-height:1.16;margin:18px 0 16px;font-weight:850;color:#fff;max-width:760px}
    .hero-lead{font-size:17px;color:#bfd3e3;max-width:720px;margin:0 0 24px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 18px;border-radius:11px;
      border:1px solid transparent;font-weight:750;font-size:15px;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
    }
    .btn-primary{color:#04161c;background:linear-gradient(135deg,var(--cyan),var(--cyan-2));box-shadow:0 0 0 1px rgba(255,255,255,.12),0 14px 32px rgba(40,199,231,.22)}
    .btn-primary:hover,.btn-primary:focus{color:#031116;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,255,255,.18),0 18px 42px rgba(101,242,220,.28);outline:none}
    .btn-secondary{color:#d7edf6;background:rgba(12,34,58,.55);border-color:rgba(129,210,230,.24)}
    .btn-secondary:hover,.btn-secondary:focus{color:#fff;border-color:var(--line-strong);background:rgba(101,242,220,.08);outline:none}
    .hero-panel,.glass-card,.filter-panel,.list-item,.faq-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(16px)}
    .hero-panel{padding:22px;position:relative;overflow:hidden}
    .hero-panel::after{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);opacity:.55}
    .metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
    .metric{padding:15px;border-radius:12px;background:rgba(5,17,31,.55);border:1px solid rgba(129,210,230,.16)}
    .metric strong{display:block;font-size:24px;line-height:1;color:#fff}
    .metric span{display:block;color:var(--muted);font-size:13px;margin-top:8px}
    .step-mini{display:grid;gap:10px;margin-top:16px}
    .step-mini li{list-style:none;display:flex;gap:10px;align-items:flex-start;color:#c8dceb;font-size:14px;padding:10px;border-radius:10px;background:rgba(101,242,220,.045)}
    .step-mini b{flex:0 0 24px;width:24px;height:24px;border-radius:8px;display:grid;place-items:center;color:#04161c;background:var(--cyan);font-size:12px}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px}
    .section-head h2{font-size:clamp(26px,3.2vw,36px);line-height:1.22;margin:10px 0 0;color:#fff;font-weight:820}
    .section-head p{margin:0;color:var(--muted);max-width:560px}
    .filter-panel{padding:22px}
    label{color:#dcecf5;font-weight:700;font-size:14px;margin-bottom:8px}
    .filter-panel input,.filter-panel select{
      height:48px;border-radius:10px;border:1px solid rgba(129,210,230,.22)!important;
      background:rgba(4,18,32,.72)!important;color:#eef8ff!important;box-shadow:none!important;margin-bottom:0;
    }
    .filter-panel input::placeholder{color:#7892a5}
    .filter-panel input:focus,.filter-panel select:focus{border-color:var(--cyan)!important;box-shadow:0 0 0 3px rgba(101,242,220,.14)!important;outline:none}
    .filter-actions{display:flex;gap:10px;align-items:flex-end;height:100%}
    .filter-note{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:16px;padding-top:16px;border-top:1px solid rgba(129,210,230,.14);color:var(--muted);font-size:13px}
    .tags{display:flex;flex-wrap:wrap;gap:8px}
    .tag{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(101,242,220,.24);background:rgba(101,242,220,.07);color:#cffaf4;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:650}
    .tag.warm{border-color:rgba(255,176,113,.32);background:rgba(255,176,113,.08);color:#ffd7b8}
    .tag.muted{border-color:rgba(129,210,230,.16);background:rgba(129,210,230,.045);color:#aec3d2}
    .index-band{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:stretch}
    .feature-large{padding:26px;border-radius:var(--radius);background:linear-gradient(135deg,rgba(12,34,58,.88),rgba(7,21,35,.86));border:1px solid var(--line);position:relative;overflow:hidden}
    .feature-large::before{content:"";position:absolute;inset:auto 0 0 0;height:4px;background:linear-gradient(90deg,var(--cyan),var(--warm));opacity:.78}
    .feature-large h3{font-size:25px;color:#fff;margin:10px 0 12px}
    .feature-large p{color:var(--muted);margin:0 0 18px}
    .compact-list{display:grid;gap:10px}
    .compact-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-radius:12px;background:rgba(12,34,58,.66);border:1px solid rgba(129,210,230,.15)}
    .compact-row strong{color:#fff;font-size:15px}
    .compact-row span{color:var(--muted);font-size:13px;text-align:right}
    .content-list{display:grid;gap:14px}
    .list-item{padding:20px;display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center}
    .list-item:hover{border-color:rgba(101,242,220,.38);background:rgba(14,43,72,.82);transform:translateY(-2px);box-shadow:var(--shadow),var(--glow)}
    .item-title{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px}
    .item-title h3{font-size:20px;margin:0;color:#fff}
    .item-meta{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 0;color:var(--muted);font-size:13px}
    .item-text{color:#b8ccdc;margin:0;max-width:760px}
    .detail-btn{white-space:nowrap;color:#03171d;background:rgba(101,242,220,.92);border-radius:10px;padding:10px 14px;font-weight:800;border:1px solid rgba(255,255,255,.12)}
    .detail-btn:hover,.detail-btn:focus{color:#03171d;background:#8af8e8;box-shadow:0 0 24px rgba(101,242,220,.26);outline:none}
    .scenario-wrap{display:grid;grid-template-columns:.88fr 1.12fr;gap:24px;align-items:start}
    .timeline{position:relative;display:grid;gap:14px}
    .timeline::before{content:"";position:absolute;left:19px;top:18px;bottom:18px;width:1px;background:rgba(101,242,220,.22)}
    .timeline-item{position:relative;padding:16px 16px 16px 54px;border-radius:14px;background:rgba(12,34,58,.52);border:1px solid rgba(129,210,230,.14)}
    .timeline-item::before{content:"";position:absolute;left:10px;top:18px;width:18px;height:18px;border-radius:50%;background:var(--bg);border:3px solid var(--cyan);box-shadow:0 0 18px rgba(101,242,220,.28)}
    .timeline-item h3{margin:0 0 6px;font-size:18px;color:#fff}
    .timeline-item p{margin:0;color:var(--muted);font-size:14px}
    .proof-band{border-top:1px solid rgba(129,210,230,.13);border-bottom:1px solid rgba(129,210,230,.13);background:linear-gradient(90deg,rgba(101,242,220,.06),rgba(255,176,113,.045),rgba(40,199,231,.04));padding:34px 0}
    .proof-inner{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:center}
    .proof-inner h2{font-size:30px;margin:0 0 12px;color:#fff}
    .proof-inner p{margin:0;color:#b8ccdc}
    .proof-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .proof-stat{padding:18px;border-radius:14px;background:rgba(5,17,31,.48);border:1px solid rgba(129,210,230,.16)}
    .proof-stat strong{display:block;font-size:26px;color:var(--cyan)}
    .proof-stat span{font-size:13px;color:var(--muted)}
    .price-panel{display:grid;grid-template-columns:.8fr 1.2fr;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:rgba(12,34,58,.62);box-shadow:var(--shadow)}
    .price-side{padding:28px;background:rgba(101,242,220,.06);border-right:1px solid rgba(129,210,230,.14)}
    .price-side h2{font-size:29px;color:#fff;margin:10px 0}
    .price-side p{color:var(--muted);margin:0 0 18px}
    .price-rows{display:grid}
    .price-row{display:grid;grid-template-columns:1fr 1fr auto;gap:14px;align-items:center;padding:20px;border-bottom:1px solid rgba(129,210,230,.12)}
    .price-row:last-child{border-bottom:0}
    .price-row h3{font-size:18px;margin:0 0 4px;color:#fff}
    .price-row p{margin:0;color:var(--muted);font-size:14px}
    .faq-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:24px;align-items:start}
    .accordion{background:transparent;margin:0}
    .accordion-item{margin-bottom:10px;border-radius:14px;overflow:hidden;border:1px solid rgba(129,210,230,.16);background:rgba(12,34,58,.58)}
    .accordion-title{border:0!important;background:transparent!important;color:#fff!important;font-size:16px;font-weight:760;padding:18px 48px 18px 18px;line-height:1.45}
    .accordion-title:hover,.accordion-title:focus{background:rgba(101,242,220,.06)!important;color:#fff!important;outline:none}
    .accordion-content{border:0!important;background:rgba(5,17,31,.38)!important;color:#b8ccdc!important;padding:0 18px 18px;font-size:15px}
    .accordion-title::before{color:var(--cyan);font-size:22px;margin-top:-13px}
    .compliance-box{padding:24px;border-radius:var(--radius);background:linear-gradient(180deg,rgba(255,176,113,.08),rgba(12,34,58,.55));border:1px solid rgba(255,176,113,.22)}
    .compliance-box h3{font-size:22px;color:#fff;margin:0 0 12px}
    .compliance-box p,.compliance-box li{color:#c8d9e6;font-size:14px}
    .compliance-box ul{margin:0 0 18px 18px}
    .cta-strip{padding:34px;border-radius:22px;background:linear-gradient(135deg,rgba(14,43,72,.96),rgba(6,17,31,.96));border:1px solid var(--line-strong);box-shadow:var(--shadow),var(--glow);display:flex;justify-content:space-between;align-items:center;gap:24px}
    .cta-strip h2{font-size:28px;color:#fff;margin:0 0 8px}
    .cta-strip p{color:var(--muted);margin:0;max-width:680px}
    .site-footer{padding:56px 0 24px;background:#040b13;border-top:1px solid rgba(129,210,230,.15)}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:start}
    .footer-brand h2{font-size:23px;color:#fff;margin:0 0 10px}
    .footer-brand p{color:var(--muted);margin:0 0 14px;max-width:640px}
    .legal-anchor{padding:14px;border-radius:12px;background:rgba(101,242,220,.045);border:1px solid rgba(101,242,220,.14);color:#a9bfce;font-size:13px}
    .footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
    .footer-links a{color:#b8ccdc;padding:9px 10px;border-radius:9px;background:rgba(255,255,255,.025);border:1px solid rgba(129,210,230,.08);font-size:14px}
    .footer-links a:hover,.footer-links a:focus{color:#fff;border-color:rgba(101,242,220,.32);background:rgba(101,242,220,.07);outline:none}
    .footer-bar{display:flex;justify-content:space-between;gap:18px;margin-top:30px;padding-top:18px;border-top:1px solid rgba(129,210,230,.12);color:#7791a5;font-size:13px}
    .privacy-note{margin-top:14px;color:#8ea7b8;font-size:13px}
    @media (max-width:1024px){
      .header-inner{min-height:72px}.brand{min-width:0}.site-nav a{padding:9px 10px}
      .index-band,.scenario-wrap,.proof-inner,.price-panel,.faq-grid{grid-template-columns:1fr}
      .price-side{border-right:0;border-bottom:1px solid rgba(129,210,230,.14)}
      .price-row{grid-template-columns:1fr}.cta-strip{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:768px){
      .nav-toggle{display:inline-flex}.site-nav{position:fixed;left:20px;right:20px;top:84px;display:none;flex-direction:column;align-items:stretch;padding:14px;border-radius:16px;background:rgba(6,17,31,.96);border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(18px)}
      .site-nav.open{display:flex}.site-nav a{min-height:46px}.site-nav a.active::after{display:none}
      .brand-text strong{font-size:15px}.brand-text span{display:none}.page-hero{padding:46px 0 38px}.section{padding:62px 0}.section.tight{padding:42px 0}
      .section-head{display:block}.section-head p{margin-top:12px}.metric-grid,.proof-stats{grid-template-columns:1fr}.list-item{grid-template-columns:1fr}.detail-btn{justify-self:start}.footer-grid,.footer-bar{grid-template-columns:1fr;display:grid}.filter-actions{height:auto;margin-top:10px}.footer-links{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .grid-container{padding-left:20px;padding-right:20px}.hero-actions,.filter-actions{flex-direction:column;align-items:stretch}.btn,.detail-btn{width:100%}.filter-note{align-items:flex-start;flex-direction:column}.price-row{padding:18px}.cta-strip{padding:24px}.hero-panel,.filter-panel{padding:18px}.item-title h3{font-size:18px}
    }

/* roulang page: category2 */
:root{
      --bg:#06111f;
      --bg-deep:#030a14;
      --panel:#0b1d31;
      --panel-soft:rgba(11,29,49,.74);
      --panel-strong:rgba(12,31,54,.92);
      --line:rgba(134,198,222,.22);
      --line-strong:rgba(87,225,213,.42);
      --text:#eef8ff;
      --muted:#9eb4c8;
      --weak:#7390a6;
      --cyan:#52eadc;
      --cyan-2:#22b9d0;
      --amber:#ffb26b;
      --rose:#d9729c;
      --green:#83e3aa;
      --danger:#ff8a72;
      --shadow:0 22px 70px rgba(0,0,0,.42);
      --glow:0 0 0 1px rgba(82,234,220,.22),0 12px 38px rgba(34,185,208,.18);
      --radius-xs:8px;
      --radius-sm:12px;
      --radius-md:16px;
      --radius-lg:24px;
      --max:1240px;
      --nav-h:82px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;background:var(--bg-deep)}
    body{
      margin:0;
      color:var(--text);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      line-height:1.78;
      background:
        linear-gradient(rgba(82,234,220,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(82,234,220,.028) 1px, transparent 1px),
        radial-gradient(circle at 12% 8%, rgba(34,185,208,.16), transparent 30%),
        radial-gradient(circle at 88% 18%, rgba(217,114,156,.12), transparent 28%),
        linear-gradient(180deg,#071424 0%,#04101e 42%,#030a14 100%);
      background-size:36px 36px,36px 36px,auto,auto,auto;
      overflow-x:hidden;
    }
    body.menu-open{overflow:hidden}
    a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease,box-shadow .2s ease}
    a:hover{color:var(--cyan)}
    img{max-width:100%;display:block}
    button,input,select{font:inherit}
    button{cursor:pointer}
    input,select{
      width:100%;
      min-height:48px;
      color:var(--text);
      background:rgba(5,17,31,.86);
      border:1px solid var(--line);
      border-radius:var(--radius-xs);
      padding:0 14px;
      outline:none;
      box-shadow:none;
      transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
    }
    input::placeholder{color:#718ba0}
    select{background-image:linear-gradient(45deg,transparent 50%,var(--cyan) 50%),linear-gradient(135deg,var(--cyan) 50%,transparent 50%);background-position:calc(100% - 18px) 20px,calc(100% - 12px) 20px;background-size:6px 6px;background-repeat:no-repeat;appearance:none}
    input:focus,select:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(82,234,220,.12);background:rgba(6,22,40,.96)}
    input.error{border-color:var(--danger);box-shadow:0 0 0 4px rgba(255,138,114,.13)}
    .grid-container{max-width:var(--max);padding-left:24px;padding-right:24px}
    .site-header{
      position:sticky;top:0;z-index:60;
      background:rgba(4,14,26,.78);
      border-bottom:1px solid rgba(116,185,210,.18);
      backdrop-filter:blur(18px);
    }
    .nav-shadow{box-shadow:0 14px 48px rgba(0,0,0,.28)}
    .header-inner{height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:13px;min-width:0;color:var(--text)}
    .brand-mark{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:linear-gradient(135deg,rgba(82,234,220,.25),rgba(255,178,107,.18));border:1px solid rgba(82,234,220,.46);box-shadow:0 0 28px rgba(82,234,220,.18);font-weight:800;color:#f3ffff}
    .brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
    .brand-text strong{font-size:16px;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:290px}
    .brand-text span{font-size:12px;color:var(--muted);margin-top:3px;white-space:nowrap}
    .site-nav{display:flex;align-items:center;gap:8px}
    .site-nav a{position:relative;padding:10px 15px;border-radius:10px;color:#c3d6e6;font-size:14px;border:1px solid transparent;line-height:1.2}
    .site-nav a:hover{background:rgba(82,234,220,.08);border-color:rgba(82,234,220,.22);color:#fff;transform:translateY(-1px)}
    .site-nav a.active{color:#071424;background:linear-gradient(135deg,var(--cyan),#9df2cf);border-color:rgba(82,234,220,.65);box-shadow:0 0 24px rgba(82,234,220,.22)}
    .site-nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:-11px;height:2px;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
    .nav-toggle{display:none;align-items:center;gap:8px;min-height:44px;padding:9px 12px;border-radius:10px;color:var(--text);background:rgba(82,234,220,.08);border:1px solid var(--line)}
    .nav-toggle svg{width:20px;height:20px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 18px;border-radius:11px;border:1px solid transparent;font-weight:700;line-height:1.1;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;color:var(--text)}
    .btn-primary{background:linear-gradient(135deg,var(--cyan),#7df0be);color:#04111d;box-shadow:0 0 0 1px rgba(82,234,220,.36),0 14px 34px rgba(82,234,220,.18)}
    .btn-primary:hover{color:#04111d;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(82,234,220,.65),0 18px 44px rgba(82,234,220,.28)}
    .btn-secondary{background:rgba(10,28,48,.72);border-color:var(--line);color:#d9ebf6}
    .btn-secondary:hover{border-color:var(--line-strong);background:rgba(82,234,220,.08);color:#fff;transform:translateY(-1px)}
    .btn:focus,.nav-toggle:focus,.site-nav a:focus,.footer-links a:focus{outline:3px solid rgba(255,178,107,.45);outline-offset:3px}
    .tag,.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;border:1px solid rgba(134,198,222,.24);background:rgba(82,234,220,.06);color:#cfe8f3;font-size:13px;padding:6px 10px;line-height:1.1}
    .badge.hot{border-color:rgba(255,178,107,.38);background:rgba(255,178,107,.1);color:#ffd9b2}
    .badge.ok{border-color:rgba(131,227,170,.38);background:rgba(131,227,170,.1);color:#c7f7d5}
    .badge.lock{border-color:rgba(217,114,156,.38);background:rgba(217,114,156,.1);color:#ffd0e0}
    .page-hero{position:relative;padding:58px 0 34px;overflow:hidden;border-bottom:1px solid rgba(116,185,210,.14)}
    .page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(82,234,220,.08),transparent 36%),linear-gradient(180deg,rgba(255,178,107,.06),transparent 56%);pointer-events:none}
    .hero-kicker{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:18px}
    .page-hero h1{font-size:clamp(30px,4.4vw,48px);line-height:1.16;margin:0 0 16px;font-weight:850;color:#f6fdff;max-width:850px}
    .hero-lead{font-size:17px;color:#bdd0df;max-width:760px;margin:0 0 24px;line-height:1.85}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:22px}
    .coupon-panel{position:relative;background:linear-gradient(145deg,rgba(12,31,54,.92),rgba(7,20,36,.76));border:1px solid rgba(82,234,220,.24);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow);backdrop-filter:blur(16px);overflow:hidden}
    .coupon-panel::before{content:"";position:absolute;left:-40px;top:26px;width:80px;height:80px;border-radius:50%;background:#06111f;border:1px solid rgba(82,234,220,.16)}
    .coupon-panel::after{content:"";position:absolute;right:-40px;bottom:26px;width:80px;height:80px;border-radius:50%;background:#06111f;border:1px solid rgba(82,234,220,.16)}
    .coupon-title{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:16px}
    .coupon-title strong{font-size:20px;color:#fff}
    .coupon-main{padding:18px;border-radius:18px;background:linear-gradient(135deg,rgba(82,234,220,.18),rgba(255,178,107,.1));border:1px dashed rgba(82,234,220,.46);min-height:174px;display:flex;flex-direction:column;justify-content:space-between}
    .coupon-main .large{font-size:30px;line-height:1.2;font-weight:850;color:#f5ffff;margin:0}
    .coupon-main p{color:#aec4d6;margin:10px 0 0;font-size:14px}
    .mini-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
    .metric{border:1px solid rgba(134,198,222,.18);background:rgba(5,17,31,.48);border-radius:13px;padding:12px;text-align:center}
    .metric b{display:block;font-size:20px;color:var(--cyan);line-height:1.1}
    .metric span{display:block;margin-top:6px;color:var(--muted);font-size:12px}
    main{position:relative}
    .section{padding:78px 0;border-bottom:1px solid rgba(116,185,210,.09)}
    .section.compact{padding-top:48px}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
    .section-head h2{font-size:clamp(25px,3vw,34px);line-height:1.28;margin:0;color:#f7fcff}
    .section-head p{max-width:560px;color:var(--muted);margin:0;font-size:15px}
    .toolbar{padding:18px;border:1px solid rgba(82,234,220,.22);border-radius:var(--radius-md);background:rgba(8,24,42,.72);box-shadow:var(--glow);backdrop-filter:blur(12px)}
    .toolbar .label{display:block;color:#cfe1ee;font-size:13px;margin-bottom:7px}
    .toolbar-actions{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap;height:100%}
    .status-line{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:16px;padding-top:15px;border-top:1px solid rgba(134,198,222,.14);color:var(--muted);font-size:13px}
    .status-dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 12px rgba(131,227,170,.65);display:inline-block;margin-right:6px}
    .tagbar{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .tagbar button{border:1px solid rgba(134,198,222,.2);background:rgba(10,28,48,.62);color:#c6dce9;border-radius:999px;min-height:38px;padding:8px 12px;transition:.2s ease}
    .tagbar button:hover,.tagbar button.active{border-color:var(--cyan);background:rgba(82,234,220,.12);color:#fff;box-shadow:0 0 18px rgba(82,234,220,.12)}
    .compare-wrap{overflow:hidden;border-radius:var(--radius-md);border:1px solid rgba(82,234,220,.2);background:rgba(6,19,34,.66);box-shadow:var(--shadow)}
    .compare-row{display:grid;grid-template-columns:1.05fr 1fr 1fr 1fr;min-width:760px;border-bottom:1px solid rgba(134,198,222,.13)}
    .compare-row:last-child{border-bottom:0}
    .compare-cell{padding:17px 18px;color:#c4d8e6;border-right:1px solid rgba(134,198,222,.13);font-size:14px}
    .compare-cell:last-child{border-right:0}
    .compare-head{background:linear-gradient(90deg,rgba(82,234,220,.13),rgba(255,178,107,.08))}
    .compare-head .compare-cell{font-weight:800;color:#f5ffff}
    .compare-cell strong{display:block;color:#fff;margin-bottom:5px;font-size:15px}
    .list-stack{display:grid;gap:14px}
    .index-item{position:relative;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(220px,.65fr);gap:18px;align-items:stretch;padding:20px;border:1px solid rgba(134,198,222,.18);border-radius:var(--radius-md);background:linear-gradient(135deg,rgba(11,29,49,.8),rgba(4,14,26,.68));box-shadow:0 16px 40px rgba(0,0,0,.18);transition:transform .2s ease,border-color .2s ease,background .2s ease}
    .index-item:hover{transform:translateY(-2px);border-color:rgba(82,234,220,.38);background:linear-gradient(135deg,rgba(12,35,60,.92),rgba(5,18,32,.78))}
    .item-title{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:10px}
    .item-title h3{font-size:20px;line-height:1.35;margin:0;color:#fff}
    .item-title small{flex:0 0 auto;color:var(--weak);font-size:13px;padding-top:4px}
    .index-item p{color:#aabed0;margin:0 0 14px;font-size:15px}
    .item-tags{display:flex;flex-wrap:wrap;gap:8px}
    .item-side{border-left:1px solid rgba(134,198,222,.14);padding-left:18px;display:flex;flex-direction:column;justify-content:space-between;gap:14px}
    .side-info{display:grid;grid-template-columns:1fr 1fr;gap:10px}
    .side-info span{display:block;border-radius:10px;background:rgba(82,234,220,.06);border:1px solid rgba(134,198,222,.14);padding:10px;color:#c9dce8;font-size:13px}
    .side-info b{display:block;color:#fff;font-size:15px;margin-bottom:3px}
    .state-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
    .state-box{border:1px solid rgba(134,198,222,.18);background:rgba(9,26,45,.7);border-radius:var(--radius-md);padding:20px;min-height:168px}
    .state-box h3{margin:0 0 12px;color:#fff;font-size:21px}
    .state-box p{margin:0;color:#aac0d2;font-size:15px}
    .progress-line{position:relative;height:9px;border-radius:999px;background:rgba(134,198,222,.16);overflow:hidden;margin:18px 0 8px}
    .progress-line span{position:absolute;inset:0 auto 0 0;width:64%;background:linear-gradient(90deg,var(--cyan),var(--amber));border-radius:999px;box-shadow:0 0 18px rgba(82,234,220,.35)}
    .steps{display:grid;gap:12px;counter-reset:step}
    .step{counter-increment:step;display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:start;padding:14px;border-radius:14px;border:1px solid rgba(134,198,222,.16);background:rgba(5,17,31,.46)}
    .step::before{content:counter(step);width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:rgba(82,234,220,.12);border:1px solid rgba(82,234,220,.34);color:var(--cyan);font-weight:800}
    .step strong{display:block;color:#fff;margin-bottom:3px}
    .step span{display:block;color:#9fb5c8;font-size:14px;line-height:1.6}
    .case-band{position:relative;overflow:hidden;border-radius:var(--radius-lg);border:1px solid rgba(82,234,220,.2);background:linear-gradient(115deg,rgba(82,234,220,.13),rgba(11,29,49,.92) 48%,rgba(255,178,107,.09));padding:30px;box-shadow:var(--shadow)}
    .case-band::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:22px 22px;opacity:.55;pointer-events:none}
    .case-content{position:relative;display:grid;grid-template-columns:1fr 1.1fr;gap:24px;align-items:center}
    .case-number{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .case-number div{padding:16px;border-radius:14px;background:rgba(3,10,20,.45);border:1px solid rgba(134,198,222,.18)}
    .case-number b{display:block;font-size:28px;color:var(--cyan);line-height:1.1}
    .case-number span{display:block;color:var(--muted);font-size:13px;margin-top:7px}
    .case-text h2{font-size:30px;line-height:1.28;margin:0 0 12px;color:#fff}
    .case-text p{color:#b7c9d8;margin:0 0 18px}
    .faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:28px;align-items:start}
    .faq-note{position:sticky;top:106px;border-radius:var(--radius-md);border:1px solid rgba(255,178,107,.24);background:rgba(255,178,107,.07);padding:22px;color:#ffd9b2}
    .faq-note h2{font-size:25px;margin:0 0 10px;color:#fff}
    .accordion{background:transparent;margin:0}
    .accordion-item{margin-bottom:12px;border:1px solid rgba(134,198,222,.18);border-radius:var(--radius-md);background:rgba(9,26,45,.72);overflow:hidden}
    .accordion-title{border:0!important;background:transparent!important;color:#f2fbff!important;font-size:17px;font-weight:800;padding:18px 54px 18px 18px;line-height:1.5}
    .accordion-title::before{right:18px;color:var(--cyan);font-size:22px;margin-top:-14px}
    .accordion-title:hover,.accordion-title:focus{background:rgba(82,234,220,.07)!important;color:#fff!important}
    .accordion-content{border:0!important;background:rgba(3,10,20,.22)!important;color:#aec2d2!important;padding:0 18px 18px;font-size:15px;line-height:1.78}
    .cta-panel{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;border:1px solid rgba(82,234,220,.24);border-radius:var(--radius-lg);padding:30px;background:linear-gradient(135deg,rgba(82,234,220,.16),rgba(11,29,49,.9));box-shadow:var(--shadow)}
    .cta-panel h2{font-size:30px;margin:0 0 10px;color:#fff;line-height:1.3}
    .cta-panel p{margin:0;color:#b4c8d8;max-width:760px}
    .legal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
    .legal-card{border-radius:var(--radius-md);border:1px solid rgba(134,198,222,.16);background:rgba(5,17,31,.54);padding:18px}
    .legal-card h3{font-size:18px;margin:0 0 8px;color:#fff}
    .legal-card p{margin:0;color:#a9bdce;font-size:14px}
    .site-footer{padding:54px 0 28px;background:#020812;border-top:1px solid rgba(116,185,210,.14)}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:start}
    .footer-brand h2{font-size:24px;margin:0 0 10px;color:#fff}
    .footer-brand p{color:var(--muted);margin:0 0 14px;max-width:620px}
    .legal-anchor{border-left:3px solid var(--cyan);padding:10px 12px;background:rgba(82,234,220,.06);color:#a7bdce;font-size:13px;border-radius:0 10px 10px 0}
    .footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
    .footer-links a{padding:10px 12px;border-radius:10px;border:1px solid rgba(134,198,222,.12);background:rgba(8,24,42,.44);color:#c6d6e3;font-size:14px}
    .footer-links a:hover{border-color:rgba(82,234,220,.35);background:rgba(82,234,220,.08);color:#fff;transform:translateY(-1px)}
    .footer-bar{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:30px;padding-top:18px;border-top:1px solid rgba(134,198,222,.12);color:#8198ad;font-size:13px}
    .mobile-only{display:none}
    @media (max-width:1024px){
      .brand-text strong{max-width:230px}
      .site-nav a{padding:10px 11px}
      .page-hero{padding-top:46px}
      .section{padding:64px 0}
      .section-head{align-items:flex-start;flex-direction:column}
      .state-grid,.case-content,.faq-layout,.cta-panel{grid-template-columns:1fr}
      .faq-note{position:relative;top:auto}
      .legal-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      :root{--nav-h:72px}
      .grid-container{padding-left:20px;padding-right:20px}
      .brand-mark{width:38px;height:38px;border-radius:12px}
      .brand-text strong{max-width:190px;font-size:14px}
      .brand-text span{display:none}
      .nav-toggle{display:inline-flex}
      .site-nav{position:fixed;left:20px;right:20px;top:82px;display:none;flex-direction:column;align-items:stretch;gap:8px;padding:14px;border-radius:18px;background:rgba(4,14,26,.96);border:1px solid rgba(82,234,220,.25);box-shadow:0 24px 70px rgba(0,0,0,.55);backdrop-filter:blur(18px)}
      .site-nav.open{display:flex}
      .site-nav a{min-height:46px;display:flex;align-items:center;justify-content:space-between;padding:12px 14px}
      .site-nav a.active::after{display:none}
      .page-hero h1{font-size:32px}
      .hero-lead{font-size:15px}
      .mini-metrics{grid-template-columns:1fr}
      .toolbar-actions{align-items:stretch}
      .toolbar-actions .btn{width:100%}
      .status-line{align-items:flex-start;flex-direction:column}
      .compare-wrap{overflow-x:auto}
      .index-item{grid-template-columns:1fr;padding:18px}
      .item-title{flex-direction:column;gap:4px}
      .item-side{border-left:0;border-top:1px solid rgba(134,198,222,.14);padding-left:0;padding-top:16px}
      .case-number{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .grid-container{padding-left:18px;padding-right:18px}
      .page-hero{padding:34px 0 26px}
      .section{padding:52px 0}
      .coupon-panel,.case-band,.cta-panel{padding:20px;border-radius:18px}
      .hero-actions .btn,.cta-panel .btn{width:100%}
      .side-info,.legal-grid{grid-template-columns:1fr}
      .case-number{grid-template-columns:1fr}
      .tagbar button{width:100%;justify-content:center}
      .footer-bar{flex-direction:column}
      .mobile-only{display:block}
    }