/* roulang page: index */
:root{
      --bg:#08090D;
      --panel:#11131A;
      --panel2:#171923;
      --ink:#EDEDF3;
      --muted:#A1A1AA;
      --line:rgba(255,255,255,.10);
      --purple:#B96CFF;
      --cyan:#22D3EE;
      --rose:#FF4D6D;
      --radius:10px;
      --radius-sm:8px;
    }
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:
        radial-gradient(circle at 20% 10%, rgba(185,108,255,.12), transparent 24%),
        radial-gradient(circle at 85% 18%, rgba(34,211,238,.08), transparent 20%),
        radial-gradient(circle at 50% 80%, rgba(255,77,109,.06), transparent 22%),
        linear-gradient(180deg, #08090D 0%, #0A0B10 42%, #08090D 100%);
      font-family: PingFang SC, Microsoft YaHei, Noto Sans SC, system-ui, sans-serif;
      letter-spacing: 0;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.58), rgba(0,0,0,0));
      opacity:.38;
      z-index:0;
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(180deg, transparent 0%, rgba(255,255,255,.03) 50%, transparent 100%);
      background-size: 100% 180px;
      opacity:.10;
      mix-blend-mode: screen;
      z-index:0;
      animation: scan 12s linear infinite;
    }
    @keyframes scan{
      0%{transform:translateY(-16px)}
      100%{transform:translateY(16px)}
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    ::selection{background:rgba(185,108,255,.35);color:#fff}
    .site-wrap{position:relative;z-index:1}
    .container-max{max-width:1240px;margin:0 auto;padding:0 20px}
    .section-pad{padding:88px 0}
    .section-tight{padding:64px 0}
    .panel{
      background: linear-gradient(180deg, rgba(23,25,35,.94), rgba(17,19,26,.96));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow: 0 0 0 1px rgba(255,255,255,.02), 0 18px 40px rgba(0,0,0,.25);
    }
    .panel-soft{
      background: linear-gradient(180deg, rgba(17,19,26,.88), rgba(17,19,26,.76));
      border:1px solid rgba(255,255,255,.08);
      border-radius:var(--radius);
    }
    .neo-line{
      position:relative;
    }
    .neo-line::before{
      content:"";
      position:absolute;
      top:0;
      left:0;
      right:0;
      height:1px;
      background: linear-gradient(90deg, transparent, rgba(34,211,238,.55), rgba(185,108,255,.65), transparent);
      opacity:.9;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:30px;
      padding:0 12px;
      border-radius:8px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.10);
      color:var(--ink);
      font-size:13px;
      line-height:1;
      white-space:nowrap;
      transition: all .2s ease;
    }
    .chip:hover{
      border-color: rgba(34,211,238,.42);
      background: rgba(34,211,238,.08);
      transform: translateY(-1px);
    }
    .chip-active{
      border-color: rgba(34,211,238,.65);
      box-shadow: 0 0 0 1px rgba(34,211,238,.12), 0 0 16px rgba(34,211,238,.08);
      color:#F3FDFF;
      background: rgba(34,211,238,.10);
    }
    .btn-primary,
    .btn-secondary{
      min-height:50px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding:0 18px;
      border-radius:10px;
      font-weight:600;
      transition: all .2s ease;
      white-space:nowrap;
      cursor:pointer;
    }
    .btn-primary{
      color:#F7F7FD;
      border:1px solid rgba(185,108,255,.55);
      background: linear-gradient(135deg, rgba(185,108,255,.96), rgba(255,77,109,.78));
      box-shadow: 0 10px 24px rgba(185,108,255,.18);
    }
    .btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);border-color: rgba(34,211,238,.55)}
    .btn-secondary{
      color:var(--ink);
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.16);
    }
    .btn-secondary:hover{transform:translateY(-1px);border-color:rgba(34,211,238,.55);background:rgba(34,211,238,.06)}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:#EDEDF3;
      font-size:13px;
      letter-spacing:0;
    }
    .section-kicker::before{
      content:"";
      width:22px;
      height:1px;
      background: linear-gradient(90deg, var(--cyan), var(--purple));
      display:inline-block;
    }
    .headline{
      font-size: clamp(34px, 5vw, 68px);
      line-height: 1.02;
      letter-spacing: 0;
      font-weight: 800;
      text-wrap: balance;
    }
    .subhead{
      color:var(--muted);
      font-size: 16px;
      line-height: 1.8;
    }
    .grid-hero{
      display:grid;
      grid-template-columns: 1.12fr .88fr;
      gap:28px;
      align-items:stretch;
    }
    .hero-panel{
      min-height: 540px;
      position:relative;
      overflow:hidden;
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      inset:auto -10% -20% auto;
      width:320px;
      height:320px;
      border-radius:50%;
      background: radial-gradient(circle, rgba(34,211,238,.16), transparent 68%);
      pointer-events:none;
    }
    .hero-search{
      display:flex;
      gap:12px;
      align-items:center;
      padding:14px;
      margin-bottom:24px;
      border-radius:12px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.10);
    }
    .hero-search input{
      width:100%;
      background:transparent;
      border:0;
      outline:none;
      color:var(--ink);
      font-size:15px;
    }
    .hero-search input::placeholder{color:#7D8291}
    .tag-row{display:flex;flex-wrap:wrap;gap:10px}
    .node-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
    }
    .node{
      position:relative;
      padding:16px;
      min-height:116px;
      border-radius:10px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025)),
        linear-gradient(135deg, rgba(185,108,255,.06), rgba(34,211,238,.04));
      border:1px solid rgba(255,255,255,.10);
      overflow:hidden;
      transition:all .2s ease;
    }
    .node:hover{
      transform:translateY(-1px);
      border-color:rgba(34,211,238,.45);
      box-shadow: 0 0 0 1px rgba(34,211,238,.08), 0 10px 24px rgba(0,0,0,.20);
    }
    .node::before{
      content:"";
      position:absolute;
      left:0;
      top:0;
      width:100%;
      height:1px;
      background: linear-gradient(90deg, rgba(34,211,238,.9), rgba(185,108,255,.4), transparent);
    }
    .node-main{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
    }
    .node-dot{
      width:12px;height:12px;border-radius:999px;
      background: radial-gradient(circle, #fff 0%, var(--cyan) 36%, rgba(34,211,238,.22) 70%);
      box-shadow:0 0 0 4px rgba(34,211,238,.10);
      flex:none;
      margin-top:4px;
    }
    .node-label{
      font-size:12px;
      color:#C8CBD4;
      letter-spacing:0;
    }
    .node-title{
      font-size:18px;
      line-height:1.3;
      font-weight:700;
      margin-top:4px;
    }
    .node-desc{
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
      margin-top:8px;
    }
    .node-badge{
      display:inline-flex;
      align-items:center;
      height:22px;
      padding:0 8px;
      font-size:12px;
      border-radius:999px;
      color:#F6F8FB;
      border:1px solid rgba(255,255,255,.10);
      background: rgba(255,255,255,.05);
      white-space:nowrap;
    }
    .node-link{
      margin-top:12px;
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#F3FDFF;
      font-size:13px;
      transition:color .2s ease;
    }
    .node-link:hover{color:#8FF0FF}
    .mini-split{
      display:grid;
      grid-template-columns: repeat(4, minmax(0,1fr));
      gap:14px;
      margin-top:18px;
    }
    .mini-stat{
      padding:16px;
      border-radius:10px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      min-height:96px;
    }
    .mini-stat .k{font-size:24px;font-weight:800;line-height:1}
    .mini-stat .t{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.6}
    .section-title{
      font-size: clamp(28px, 3vw, 42px);
      line-height:1.08;
      font-weight:800;
      letter-spacing:0;
      text-wrap:balance;
    }
    .section-desc{
      color:var(--muted);
      line-height:1.8;
      font-size:16px;
      max-width:760px;
    }
    .card{
      background: linear-gradient(180deg, rgba(23,25,35,.96), rgba(17,19,26,.98));
      border: 1px solid rgba(255,255,255,.10);
      border-radius: 10px;
      padding: 22px;
      transition: all .2s ease;
      position:relative;
      overflow:hidden;
    }
    .card:hover{
      transform: translateY(-1px);
      border-color: rgba(34,211,238,.42);
      box-shadow: 0 0 0 1px rgba(34,211,238,.08), 0 16px 28px rgba(0,0,0,.18);
    }
    .card::before{
      content:"";
      position:absolute;
      left:0; top:0;
      width:100%;
      height:1px;
      background: linear-gradient(90deg, rgba(185,108,255,.85), rgba(34,211,238,.55), transparent);
      opacity:.85;
    }
    .card-title{
      font-size:20px;
      font-weight:700;
      line-height:1.3;
      margin: 8px 0 10px;
      letter-spacing:0;
    }
    .card-copy{
      color:var(--muted);
      line-height:1.75;
      font-size:14px;
    }
    .num{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:32px;
      height:32px;
      border-radius:8px;
      background: rgba(34,211,238,.08);
      border: 1px solid rgba(34,211,238,.24);
      color:#DFFBFF;
      font-weight:700;
      font-size:13px;
    }
    .flow{
      display:grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap:14px;
      position:relative;
    }
    .flow::before{
      content:"";
      position:absolute;
      left:6%;
      right:6%;
      top:30px;
      height:1px;
      background: linear-gradient(90deg, rgba(34,211,238,.2), rgba(185,108,255,.7), rgba(34,211,238,.2));
      opacity:.7;
    }
    .flow-item{
      padding-top:8px;
    }
    .flow-item .card{min-height:220px}
    .update-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:16px;
    }
    .update-list{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .update-link{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      padding:16px 18px;
      border-radius:10px;
      background: rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      transition: all .2s ease;
    }
    .update-link:hover{
      border-color: rgba(185,108,255,.38);
      background: rgba(185,108,255,.06);
      transform: translateY(-1px);
    }
    .update-link strong{display:block;font-size:16px;line-height:1.4}
    .update-link span{display:block;color:var(--muted);font-size:13px;line-height:1.6;margin-top:6px}
    .update-timestamp{
      font-size:12px;
      color:#C4C8D4;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      border-radius:999px;
      padding:6px 9px;
      white-space:nowrap;
    }
    .bar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:14px 16px;
      border-radius:10px;
      background: rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
    }
    .bar + .bar{margin-top:10px}
    .bar .name{font-weight:700}
    .bar .meta{color:var(--muted);font-size:13px}
    .table-wrap{
      overflow:auto;
      border-radius:12px;
      border:1px solid rgba(255,255,255,.08);
      background: rgba(255,255,255,.02);
    }
    table{
      width:100%;
      border-collapse:collapse;
      min-width:740px;
    }
    th,td{
      text-align:left;
      padding:16px 18px;
      border-bottom:1px solid rgba(255,255,255,.08);
      font-size:14px;
      vertical-align:top;
    }
    th{
      color:#F3F4F8;
      background: rgba(255,255,255,.03);
      font-weight:700;
    }
    td{
      color:#D8DAE2;
      line-height:1.72;
    }
    td:first-child{color:#F3F4F8}
    .diff-good{
      color:#9FF5FF;
    }
    .quote-row{
      display:grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap:14px;
    }
    .quote{
      padding:20px;
      border-radius:10px;
      background: linear-gradient(180deg, rgba(23,25,35,.94), rgba(17,19,26,.98));
      border:1px solid rgba(255,255,255,.08);
    }
    .avatar{
      width:44px;height:44px;border-radius:999px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      font-weight:800;
      color:#fff;
      background: linear-gradient(135deg, rgba(185,108,255,.94), rgba(34,211,238,.80));
      box-shadow: 0 0 0 4px rgba(255,255,255,.03);
    }
    .quote p{
      margin-top:14px;
      color:#E5E6ED;
      line-height:1.8;
      font-size:14px;
    }
    .quote .meta{
      margin-top:14px;
      display:flex;
      gap:8px;
      flex-wrap:wrap;
    }
    .faq{
      display:grid;
      gap:12px;
    }
    details.faq-item{
      border-radius:10px;
      background: rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      overflow:hidden;
    }
    details.faq-item[open]{
      border-color: rgba(34,211,238,.36);
      box-shadow: 0 0 0 1px rgba(34,211,238,.08);
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:18px 18px 18px 20px;
      position:relative;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      font-weight:700;
      line-height:1.5;
    }
    summary::-webkit-details-marker{display:none}
    summary::before{
      content:"";
      position:absolute;
      left:0;
      top:0;
      bottom:0;
      width:3px;
      background: linear-gradient(180deg, var(--cyan), var(--purple));
      opacity:0;
      transition: opacity .2s ease;
    }
    details[open] summary::before,
    summary:hover::before{opacity:1}
    .faq-answer{
      padding:0 20px 18px 20px;
      color:var(--muted);
      line-height:1.85;
      font-size:14px;
    }
    .chev{
      width:18px;
      height:18px;
      flex:none;
      color:#C8CBD4;
      transition: transform .2s ease;
    }
    details[open] .chev{transform:rotate(180deg)}
    .cta-band{
      position:relative;
      overflow:hidden;
      background:
        linear-gradient(135deg, rgba(185,108,255,.14), rgba(34,211,238,.10), rgba(255,77,109,.10)),
        linear-gradient(180deg, rgba(17,19,26,.98), rgba(10,11,16,.98));
      border:1px solid rgba(255,255,255,.10);
      border-radius:14px;
    }
    .cta-band::before,
    .cta-band::after{
      content:"";
      position:absolute;
      inset:auto 0 0 0;
      height:1px;
      background: linear-gradient(90deg, transparent, rgba(34,211,238,.8), rgba(185,108,255,.8), transparent);
    }
    .cta-band::after{
      inset:0 auto auto 0;
      width:1px;
      height:100%;
      background: linear-gradient(180deg, transparent, rgba(34,211,238,.8), rgba(185,108,255,.8), transparent);
    }
    footer{
      background: linear-gradient(180deg, #050609, #07080C);
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap:18px;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .footer-links a{
      color:#D7DAE2;
      font-size:14px;
      padding:8px 12px;
      border-radius:8px;
      border:1px solid rgba(255,255,255,.08);
      background: rgba(255,255,255,.03);
      transition: all .2s ease;
    }
    .footer-links a:hover{
      color:#FFF;
      border-color: rgba(34,211,238,.45);
      background: rgba(34,211,238,.06);
    }
    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter: blur(16px);
      background: rgba(8,9,13,.72);
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .topbar .line{
      height:1px;
      background: linear-gradient(90deg, transparent, rgba(34,211,238,.65), rgba(185,108,255,.65), transparent);
    }
    .nav-row{
      display:grid;
      grid-template-columns: 1fr auto 1fr;
      align-items:center;
      min-height:74px;
      gap:16px;
    }
    .nav-group{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .nav-left{justify-content:flex-start}
    .nav-right{justify-content:flex-end}
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      letter-spacing:0;
      font-size:18px;
      white-space:nowrap;
    }
    .brand-mark{
      width:36px;
      height:36px;
      border-radius:10px;
      background:
        radial-gradient(circle at 30% 30%, rgba(255,255,255,.8), rgba(255,255,255,0) 36%),
        linear-gradient(135deg, rgba(185,108,255,.95), rgba(34,211,238,.82));
      box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 12px 24px rgba(185,108,255,.18);
      display:inline-block;
    }
    .menu-btn{
      display:none;
      align-items:center;
      justify-content:center;
      width:42px;
      height:42px;
      border-radius:10px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.03);
      color:#FFF;
    }
    .mobile-menu{
      display:none;
      border-top:1px solid rgba(255,255,255,.08);
      background: rgba(8,9,13,.96);
    }
    .mobile-menu.open{display:block}
    .mobile-menu .wrap{
      padding:14px 0 18px;
      display:grid;
      gap:10px;
    }
    .mobile-menu a{
      padding:14px 16px;
      border-radius:10px;
      border:1px solid rgba(255,255,255,.08);
      background: rgba(255,255,255,.03);
      font-size:15px;
      min-height:44px;
      display:flex;
      align-items:center;
      justify-content:space-between;
    }
    .mobile-menu a.active{
      border-color: rgba(34,211,238,.48);
      background: rgba(34,211,238,.08);
    }
    .active-dot{
      width:8px;height:8px;border-radius:999px;background:var(--cyan);
      box-shadow:0 0 0 4px rgba(34,211,238,.12);
      flex:none;
    }
    .poster{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap:12px;
    }
    .poster-card{
      aspect-ratio: 4 / 5;
      padding:18px;
      border-radius:10px;
      border:1px solid rgba(255,255,255,.10);
      background:
        linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02)),
        radial-gradient(circle at 20% 20%, rgba(185,108,255,.18), transparent 38%),
        radial-gradient(circle at 80% 30%, rgba(34,211,238,.14), transparent 34%),
        linear-gradient(160deg, rgba(17,19,26,.98), rgba(9,10,15,.98));
      position:relative;
      overflow:hidden;
      min-height:210px;
    }
    .poster-card::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(115deg, transparent 0 42%, rgba(255,255,255,.08) 49%, transparent 58%);
      opacity:.45;
      transform: translateX(-30%);
    }
    .poster-card .idx{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:32px;
      height:32px;
      border-radius:8px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.10);
      font-weight:800;
    }
    .poster-card h4{
      margin-top:14px;
      font-size:18px;
      line-height:1.35;
      font-weight:800;
    }
    .poster-card p{
      margin-top:10px;
      font-size:13px;
      line-height:1.75;
      color:var(--muted);
    }
    .poster-card .bottom{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:10px;
      color:#D9DAE2;
      font-size:12px;
    }
    .search-strip{
      display:flex;
      gap:12px;
      align-items:center;
      padding:14px 16px;
      border-radius:12px;
      background: rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
    }
    .search-strip input{
      width:100%;
      border:0;
      outline:none;
      background:transparent;
      color:var(--ink);
      font-size:14px;
    }
    .search-strip input::placeholder{color:#7D8291}
    .touch-row{display:flex;flex-wrap:wrap;gap:10px}
    .safety-grid{
      display:grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap:14px;
    }
    .safety-item{
      padding:18px;
      border-radius:10px;
      background: rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
    }
    .safety-item h4{font-size:18px;font-weight:700;line-height:1.3;margin-top:10px}
    .safety-item p{margin-top:10px;color:var(--muted);line-height:1.75;font-size:14px}
    .indicator{
      display:inline-flex;
      gap:8px;
      align-items:center;
      color:#CBD0DA;
      font-size:13px;
    }
    .indicator i{
      width:8px;height:8px;border-radius:999px;background:var(--rose);
      box-shadow:0 0 0 4px rgba(255,77,109,.12);
      display:inline-block;
    }
    @media (max-width: 1024px){
      .grid-hero{grid-template-columns:1fr}
      .hero-panel{min-height:auto}
      .flow{grid-template-columns: repeat(2, minmax(0,1fr))}
      .quote-row,.safety-grid,.footer-grid,.update-grid{grid-template-columns:1fr}
      .mini-split{grid-template-columns: repeat(2, minmax(0,1fr))}
      .nav-row{grid-template-columns: auto 1fr auto}
      .nav-group.nav-left,.nav-group.nav-right{display:none}
      .menu-btn{display:inline-flex;justify-self:end}
      .brand{justify-self:center}
      .node-grid{grid-template-columns:1fr 1fr}
      .poster{grid-template-columns: repeat(4, minmax(0,1fr)); overflow:auto; padding-bottom:6px}
      .poster-card{min-width: 220px}
    }
    @media (max-width: 768px){
      .section-pad{padding:64px 0}
      .section-tight{padding:52px 0}
      .headline{font-size: clamp(34px, 9vw, 44px)}
      .subhead,.section-desc{font-size:15px}
      .mini-split{grid-template-columns:1fr}
      .flow,.node-grid,.quote-row,.safety-grid{grid-template-columns:1fr}
      .search-strip,.hero-search{flex-direction:column;align-items:stretch}
      .btn-primary,.btn-secondary{width:100%}
      .nav-row{min-height:68px}
      .brand{font-size:16px}
      .brand-mark{width:32px;height:32px}
      .container-max{padding:0 16px}
      .poster{grid-template-columns: repeat(2, minmax(0,1fr))}
    }
    @media (max-width: 520px){
      .poster{grid-template-columns:1fr}
      .update-link{flex-direction:column}
      th,td{padding:14px 14px}
    }

/* roulang page: category1 */
:root {
      --bg: #08090d;
      --bg-soft: #101116;
      --panel: #11131a;
      --panel-2: #171923;
      --text: #ededf3;
      --muted: #a1a1aa;
      --line: rgba(255,255,255,.10);
      --line-strong: rgba(185,108,255,.42);
      --purple: #b96cff;
      --violet: #a855f7;
      --cyan: #22d3ee;
      --coral: #ff4d6d;
      --green: #73f5b5;
      --radius: 8px;
      --radius-lg: 12px;
      --shadow-glow: 0 0 34px rgba(185,108,255,.16), 0 0 22px rgba(34,211,238,.08);
      --container: 1220px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      color: var(--text);
      font-family: PingFang SC, Microsoft YaHei, Noto Sans SC, system-ui, sans-serif;
      line-height: 1.7;
      background:
        radial-gradient(circle at 18% 12%, rgba(185,108,255,.14), transparent 30%),
        radial-gradient(circle at 85% 20%, rgba(34,211,238,.10), transparent 28%),
        linear-gradient(180deg, #08090d 0%, #0c0d12 42%, #08090d 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: -1;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,.86), transparent 80%);
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    button,
    input {
      font: inherit;
    }

    img,
    svg {
      display: block;
      max-width: 100%;
    }

    ::selection {
      background: rgba(185,108,255,.42);
      color: #fff;
    }

    .container-max {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }

    .topbar {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(8,9,13,.78);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line);
    }

    .topbar .line {
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--purple), var(--cyan), transparent);
      opacity: .85;
    }

    .nav-row {
      min-height: 74px;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 18px;
    }

    .nav-group {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .nav-left {
      justify-content: flex-start;
    }

    .nav-right {
      justify-content: flex-end;
    }

    .chip {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      padding: 0 14px;
      color: var(--muted);
      border: 1px solid transparent;
      border-radius: 999px;
      font-size: 14px;
      transition: transform .2s ease, color .2s ease, border-color .2s ease, background .2s ease;
    }

    .chip:hover,
    .chip:focus-visible {
      color: var(--text);
      border-color: rgba(34,211,238,.42);
      background: rgba(255,255,255,.045);
      outline: none;
      transform: translateY(-1px);
    }

    .chip-active {
      color: #fff;
      background: rgba(185,108,255,.12);
      border-color: rgba(185,108,255,.34);
    }

    .chip-active::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 3px;
      width: 22px;
      height: 2px;
      transform: translateX(-50%);
      background: linear-gradient(90deg, var(--purple), var(--cyan));
      border-radius: 999px;
      box-shadow: 0 0 14px rgba(34,211,238,.65);
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-weight: 800;
      letter-spacing: 0;
      white-space: nowrap;
    }

    .brand-mark {
      width: 28px;
      height: 28px;
      border-radius: 8px;
      background:
        linear-gradient(135deg, rgba(185,108,255,.95), rgba(34,211,238,.82)),
        radial-gradient(circle, #fff, transparent 55%);
      box-shadow: 0 0 24px rgba(185,108,255,.35);
      position: relative;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 7px;
      border: 1px solid rgba(255,255,255,.78);
      border-radius: 5px;
    }

    .menu-btn {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      color: var(--text);
      background: rgba(255,255,255,.045);
      align-items: center;
      justify-content: center;
      transition: border-color .2s ease, background .2s ease, color .2s ease;
    }

    .menu-btn:hover,
    .menu-btn:focus-visible {
      border-color: rgba(34,211,238,.5);
      color: #fff;
      outline: none;
    }

    .mobile-menu {
      display: none;
      border-top: 1px solid var(--line);
      background: rgba(8,9,13,.96);
    }

    .mobile-menu.open {
      display: block;
    }

    .mobile-menu .wrap {
      padding: 12px 0 18px;
      display: grid;
      gap: 8px;
    }

    .mobile-menu a {
      min-height: 48px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 14px;
      color: var(--muted);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(255,255,255,.035);
    }

    .mobile-menu a.active {
      color: #fff;
      border-color: rgba(185,108,255,.38);
      background: rgba(185,108,255,.10);
    }

    .active-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 14px var(--cyan);
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 92px 0;
      position: relative;
    }

    .section-tight {
      padding: 68px 0;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--cyan);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0;
    }

    .section-kicker::before {
      content: "";
      width: 18px;
      height: 2px;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--purple), var(--cyan));
      box-shadow: 0 0 14px rgba(34,211,238,.55);
    }

    .headline {
      margin-top: 14px;
      font-size: clamp(32px, 5vw, 60px);
      line-height: 1.08;
      font-weight: 900;
      letter-spacing: 0;
      max-width: 880px;
    }

    .subhead {
      color: var(--muted);
      font-size: 16px;
      line-height: 1.85;
    }

    .btn {
      min-height: 50px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      padding: 0 20px;
      border-radius: var(--radius);
      border: 1px solid transparent;
      font-weight: 800;
      color: #fff;
      transition: transform .2s ease, border-color .2s ease, filter .2s ease, background .2s ease, box-shadow .2s ease;
    }

    .btn:hover,
    .btn:focus-visible {
      transform: translateY(-1px);
      filter: brightness(1.08);
      outline: none;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--violet), var(--coral));
      box-shadow: 0 0 28px rgba(185,108,255,.22);
    }

    .btn-primary:hover,
    .btn-primary:focus-visible {
      box-shadow: 0 0 34px rgba(255,77,109,.30), 0 0 22px rgba(34,211,238,.16);
    }

    .btn-secondary {
      background: rgba(255,255,255,.04);
      border-color: rgba(255,255,255,.16);
    }

    .btn-secondary:hover,
    .btn-secondary:focus-visible {
      border-color: rgba(34,211,238,.55);
      background: rgba(34,211,238,.08);
    }

    .tag,
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 28px;
      padding: 0 10px;
      border-radius: 6px;
      border: 1px solid rgba(255,255,255,.12);
      background: rgba(255,255,255,.06);
      color: var(--muted);
      font-size: 13px;
      white-space: nowrap;
    }

    .tag-active {
      color: #fff;
      border-color: rgba(34,211,238,.46);
      box-shadow: inset 0 -1px 0 rgba(34,211,238,.55);
    }

    .hero-shell {
      padding-top: 62px;
      padding-bottom: 54px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, .92fr) minmax(340px, .62fr);
      gap: 34px;
      align-items: stretch;
    }

    .search-panel {
      margin-top: 28px;
      padding: 12px;
      display: flex;
      gap: 10px;
      align-items: center;
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.045);
      border: 1px solid var(--line);
      max-width: 760px;
    }

    .search-panel input {
      width: 100%;
      min-height: 48px;
      border: 0;
      outline: none;
      color: var(--text);
      background: transparent;
      padding: 0 12px;
    }

    .search-panel:focus-within {
      border-color: rgba(34,211,238,.55);
      box-shadow: 0 0 0 3px rgba(34,211,238,.08);
    }

    .filter-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .preview-card {
      position: relative;
      min-height: 430px;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.025)),
        var(--panel);
      overflow: hidden;
      box-shadow: var(--shadow-glow);
    }

    .preview-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, transparent 0 20%, rgba(34,211,238,.08) 20% 21%, transparent 21% 58%, rgba(185,108,255,.08) 58% 59%, transparent 59%),
        repeating-linear-gradient(0deg, rgba(255,255,255,.035) 0 1px, transparent 1px 24px);
      opacity: .65;
    }

    .preview-top {
      position: relative;
      padding: 24px;
      min-height: 250px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      background:
        radial-gradient(circle at 30% 20%, rgba(255,77,109,.22), transparent 34%),
        radial-gradient(circle at 74% 24%, rgba(34,211,238,.22), transparent 32%),
        linear-gradient(135deg, rgba(185,108,255,.22), rgba(17,19,26,.16));
      border-bottom: 1px solid var(--line);
    }

    .route-line {
      position: absolute;
      left: 22px;
      right: 22px;
      top: 46%;
      height: 2px;
      background: linear-gradient(90deg, var(--purple), var(--cyan), var(--coral));
      opacity: .72;
      box-shadow: 0 0 18px rgba(34,211,238,.4);
    }

    .node {
      position: absolute;
      width: 13px;
      height: 13px;
      border: 2px solid #fff;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 18px var(--cyan);
    }

    .node:nth-child(2) { left: 18%; top: 42%; }
    .node:nth-child(3) { left: 47%; top: 39%; background: var(--purple); box-shadow: 0 0 18px var(--purple); }
    .node:nth-child(4) { right: 18%; top: 44%; background: var(--coral); box-shadow: 0 0 18px var(--coral); }

    .countdown {
      position: relative;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      padding: 18px;
    }

    .count-box {
      padding: 14px 10px;
      text-align: center;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      background: rgba(255,255,255,.045);
    }

    .count-box strong {
      display: block;
      font-size: 26px;
      line-height: 1.1;
      color: #fff;
    }

    .count-box span {
      color: var(--muted);
      font-size: 12px;
    }

    .notice-line {
      position: relative;
      margin: 0 18px 18px;
      padding: 14px 16px;
      border-radius: var(--radius);
      border: 1px solid rgba(34,211,238,.24);
      background: rgba(34,211,238,.065);
      color: var(--text);
      font-size: 14px;
    }

    .layout-with-filter {
      display: grid;
      grid-template-columns: 240px minmax(0, 1fr);
      gap: 26px;
      align-items: start;
    }

    .side-filter {
      position: sticky;
      top: 96px;
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: rgba(17,19,26,.82);
    }

    .side-filter h2 {
      font-size: 18px;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .filter-group {
      padding: 14px 0;
      border-top: 1px solid var(--line);
    }

    .filter-group:first-of-type {
      border-top: 0;
      padding-top: 0;
    }

    .filter-title {
      color: #fff;
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .filter-options {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .poster-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .poster-card {
      position: relative;
      min-height: 360px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 20px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background:
        linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.025)),
        var(--panel);
      overflow: hidden;
      transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
    }

    .poster-card::before {
      content: "";
      position: absolute;
      left: 20px;
      right: 20px;
      top: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--purple), var(--cyan));
      opacity: .75;
    }

    .poster-card::after {
      content: attr(data-index);
      position: absolute;
      right: 18px;
      top: 42px;
      font-size: 76px;
      font-weight: 900;
      line-height: 1;
      color: rgba(255,255,255,.045);
    }

    .poster-card:hover {
      transform: translateY(-3px);
      border-color: rgba(34,211,238,.46);
      background:
        linear-gradient(180deg, rgba(34,211,238,.08), rgba(255,255,255,.035)),
        var(--panel-2);
      box-shadow: var(--shadow-glow);
    }

    .poster-cover {
      min-height: 128px;
      margin: -2px -2px 18px;
      border-radius: 7px;
      border: 1px solid rgba(255,255,255,.10);
      background:
        radial-gradient(circle at 24% 25%, rgba(185,108,255,.38), transparent 30%),
        radial-gradient(circle at 74% 38%, rgba(34,211,238,.30), transparent 28%),
        linear-gradient(135deg, rgba(255,77,109,.16), rgba(255,255,255,.035)),
        repeating-linear-gradient(135deg, rgba(255,255,255,.055) 0 1px, transparent 1px 12px);
      position: relative;
      overflow: hidden;
    }

    .poster-cover span {
      position: absolute;
      left: 14px;
      bottom: 12px;
      padding: 4px 8px;
      border-radius: 6px;
      border: 1px solid rgba(255,255,255,.16);
      background: rgba(8,9,13,.72);
      color: #fff;
      font-size: 12px;
      font-weight: 800;
    }

    .poster-card h3 {
      position: relative;
      z-index: 1;
      font-size: 20px;
      line-height: 1.35;
      font-weight: 900;
      margin-bottom: 10px;
    }

    .poster-card p {
      position: relative;
      z-index: 1;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .card-tags {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }

    .status-row {
      position: relative;
      z-index: 1;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: 22px;
      padding-top: 16px;
      border-top: 1px solid var(--line);
    }

    .status {
      color: var(--green);
      font-size: 13px;
      font-weight: 800;
    }

    .mini-link {
      color: var(--cyan);
      font-size: 14px;
      font-weight: 800;
      transition: color .2s ease, transform .2s ease;
    }

    .mini-link:hover,
    .mini-link:focus-visible {
      color: #fff;
      outline: none;
    }

    .path-panel {
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: rgba(17,19,26,.72);
      overflow: hidden;
    }

    .path-row {
      display: grid;
      grid-template-columns: 90px 1fr 220px;
      gap: 18px;
      align-items: center;
      padding: 20px 24px;
      border-top: 1px solid var(--line);
      position: relative;
    }

    .path-row:first-child {
      border-top: 0;
    }

    .path-row::before {
      content: "";
      position: absolute;
      left: 68px;
      top: 0;
      bottom: 0;
      width: 1px;
      background: linear-gradient(var(--purple), var(--cyan));
      opacity: .35;
    }

    .step-no {
      position: relative;
      z-index: 1;
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      border: 1px solid rgba(34,211,238,.46);
      background: #0b0c11;
      color: #fff;
      font-weight: 900;
      box-shadow: 0 0 18px rgba(34,211,238,.16);
    }

    .info-board {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 20px;
      align-items: stretch;
    }

    .metric-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0,1fr));
      gap: 14px;
    }

    .metric-card,
    .compare-card {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(255,255,255,.045);
      padding: 20px;
    }

    .metric-card strong {
      display: block;
      color: #fff;
      font-size: 24px;
      line-height: 1.2;
      margin-bottom: 6px;
    }

    .compare-card {
      height: 100%;
      padding: 0;
      overflow: hidden;
    }

    .compare-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      border-top: 1px solid var(--line);
    }

    .compare-row:first-child {
      border-top: 0;
    }

    .compare-row > div {
      padding: 16px 18px;
      color: var(--muted);
      font-size: 14px;
    }

    .compare-row > div:last-child {
      color: var(--text);
      border-left: 1px solid var(--line);
      background: rgba(34,211,238,.035);
    }

    .faq-list {
      display: grid;
      gap: 12px;
      max-width: 920px;
    }

    details {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(17,19,26,.78);
      overflow: hidden;
    }

    summary {
      cursor: pointer;
      list-style: none;
      padding: 18px 20px;
      color: #fff;
      font-weight: 850;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      transition: background .2s ease;
    }

    summary::-webkit-details-marker {
      display: none;
    }

    summary::after {
      content: "+";
      width: 26px;
      height: 26px;
      display: grid;
      place-items: center;
      border-radius: 6px;
      border: 1px solid var(--line);
      color: var(--cyan);
      flex: 0 0 auto;
    }

    details[open] {
      border-color: rgba(34,211,238,.36);
    }

    details[open] summary {
      background: rgba(34,211,238,.06);
      border-left: 3px solid var(--cyan);
    }

    details[open] summary::after {
      content: "-";
    }

    details p {
      padding: 0 20px 20px 23px;
      color: var(--muted);
      margin: 0;
    }

    .cta-band {
      position: relative;
      overflow: hidden;
      padding: 72px 0;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
      background:
        linear-gradient(90deg, rgba(185,108,255,.16), rgba(34,211,238,.08), rgba(255,77,109,.13)),
        #090a0f;
    }

    .cta-band::before {
      content: "";
      position: absolute;
      inset: 22px 0 auto 0;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--purple), var(--cyan), var(--coral), transparent);
      opacity: .75;
    }

    footer {
      background: #06070b;
      border-top: 1px solid var(--line);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .7fr .8fr;
      gap: 34px;
      align-items: start;
    }

    .footer-links {
      display: grid;
      gap: 9px;
    }

    .footer-links a {
      color: var(--muted);
      font-size: 14px;
      transition: color .2s ease, transform .2s ease;
    }

    .footer-links a:hover,
    .footer-links a:focus-visible {
      color: #fff;
      transform: translateX(2px);
      outline: none;
    }

    @media (max-width: 1024px) {
      .nav-row {
        grid-template-columns: auto 1fr auto;
      }

      .nav-group {
        display: none;
      }

      .brand {
        justify-self: center;
      }

      .menu-btn {
        display: flex;
        justify-self: end;
      }

      .hero-grid,
      .layout-with-filter,
      .info-board {
        grid-template-columns: 1fr;
      }

      .side-filter {
        position: relative;
        top: auto;
      }

      .poster-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .path-row {
        grid-template-columns: 70px 1fr;
      }

      .path-row .tag {
        grid-column: 2;
        width: fit-content;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .container-max {
        width: min(100% - 28px, var(--container));
      }

      .section {
        padding: 64px 0;
      }

      .hero-shell {
        padding-top: 42px;
        padding-bottom: 42px;
      }

      .headline {
        font-size: 38px;
      }

      .search-panel {
        flex-direction: column;
        align-items: stretch;
      }

      .search-panel .btn {
        width: 100%;
      }

      .filter-row {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 6px;
      }

      .poster-grid,
      .metric-grid {
        grid-template-columns: 1fr;
      }

      .preview-card {
        min-height: 380px;
      }

      .path-row {
        padding: 18px;
        grid-template-columns: 58px 1fr;
      }

      .path-row::before {
        left: 38px;
      }

      .compare-row {
        grid-template-columns: 1fr;
      }

      .compare-row > div:last-child {
        border-left: 0;
        border-top: 1px solid var(--line);
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 520px) {
      .brand span:last-child {
        max-width: 210px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .headline {
        font-size: 34px;
      }

      .btn {
        width: 100%;
        min-height: 46px;
      }

      .countdown {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 8px;
      }

      .count-box strong {
        font-size: 22px;
      }

      .poster-card {
        min-height: 330px;
      }
    }