/* roulang page: index */
:root{
      --bg-0:#050816;
      --bg-1:#0a1020;
      --panel:rgba(10,16,31,.66);
      --panel-strong:rgba(8,13,25,.88);
      --line:rgba(255,255,255,.10);
      --line-strong:rgba(51,230,255,.24);
      --text:#e7eefb;
      --muted:rgba(226,232,240,.72);
      --muted-2:rgba(226,232,240,.52);
      --accent:#33e6ff;
      --accent-2:#9b7bff;
      --accent-3:#ffb36b;
      --shadow:0 20px 60px rgba(0,0,0,.42);
      --radius:22px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 10%, rgba(51,230,255,.12), transparent 28%),
        radial-gradient(circle at 88% 8%, rgba(155,123,255,.10), transparent 24%),
        radial-gradient(circle at 70% 70%, rgba(255,179,107,.05), transparent 20%),
        linear-gradient(180deg, #050816 0%, #090f1c 42%, #050816 100%);
      font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height:1.7;
      overflow-x:hidden;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.016) 1px, transparent 1px);
      background-size:34px 34px;
      opacity:.14;
      mix-blend-mode:soft-light;
    }
    ::selection{background:rgba(51,230,255,.28); color:#fff}
    a{color:inherit; text-decoration:none}
    img{max-width:100%; display:block}
    button,input,textarea,select{font:inherit}
    :focus-visible{outline:2px solid rgba(51,230,255,.75); outline-offset:2px}
    .site-shell{width:min(1280px, calc(100% - 32px)); margin-inline:auto}
    .glass-card{
      position:relative;
      background:var(--panel);
      border:1px solid var(--line);
      backdrop-filter:blur(18px);
      -webkit-backdrop-filter:blur(18px);
      box-shadow:var(--shadow);
    }
    .glass-soft{
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.09);
      backdrop-filter:blur(14px);
      -webkit-backdrop-filter:blur(14px);
    }
    .glow-border{
      position:relative;
    }
    .glow-border::before{
      content:"";
      position:absolute;
      inset:-1px;
      border-radius:inherit;
      padding:1px;
      background:linear-gradient(135deg, rgba(51,230,255,.34), rgba(155,123,255,.26), rgba(255,179,107,.14));
      mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      mask-composite:exclude;
      -webkit-mask-composite:xor;
      opacity:.65;
      pointer-events:none;
    }
    .nav-shell{
      background:rgba(9,14,26,.56);
      border:1px solid rgba(255,255,255,.10);
      backdrop-filter:blur(20px);
      -webkit-backdrop-filter:blur(20px);
      box-shadow:0 14px 36px rgba(0,0,0,.26);
      transition:all .25s ease;
    }
    header.header-scrolled .nav-shell{
      background:rgba(6,10,20,.92);
      border-color:rgba(255,255,255,.08);
      box-shadow:0 18px 44px rgba(0,0,0,.38);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      background:
        radial-gradient(circle at 30% 30%, rgba(255,255,255,.45), transparent 26%),
        linear-gradient(145deg, rgba(51,230,255,.95), rgba(155,123,255,.92));
      box-shadow:0 12px 28px rgba(51,230,255,.18);
      display:grid;
      place-items:center;
      color:#07101b;
      font-weight:800;
      letter-spacing:.05em;
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.75rem 1rem;
      border-radius:999px;
      color:rgba(226,232,240,.82);
      border:1px solid transparent;
      transition:all .2s ease;
      white-space:nowrap;
    }
    .nav-link:hover,.nav-link:focus-visible{
      color:#fff;
      background:rgba(255,255,255,.04);
      border-color:rgba(255,255,255,.10);
      transform:translateY(-1px);
    }
    .nav-link.active{
      background:linear-gradient(135deg, rgba(51,230,255,.16), rgba(155,123,255,.12));
      color:#fff;
      border-color:rgba(51,230,255,.24);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
    }
    .btn-primary,.btn-secondary,.chip-btn,.icon-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.55rem;
      border-radius:999px;
      transition:all .22s ease;
      cursor:pointer;
      user-select:none;
    }
    .btn-primary{
      padding:.9rem 1.25rem;
      background:linear-gradient(135deg, rgba(51,230,255,.98), rgba(155,123,255,.96));
      color:#07101b;
      font-weight:700;
      box-shadow:0 18px 40px rgba(51,230,255,.16);
      border:1px solid rgba(255,255,255,.16);
    }
    .btn-primary:hover,.btn-primary:focus-visible{
      transform:translateY(-2px);
      box-shadow:0 24px 50px rgba(51,230,255,.24);
      filter:saturate(1.05);
    }
    .btn-secondary{
      padding:.9rem 1.15rem;
      background:rgba(255,255,255,.04);
      color:#f3f7ff;
      border:1px solid rgba(255,255,255,.12);
    }
    .btn-secondary:hover,.btn-secondary:focus-visible{
      background:rgba(255,255,255,.07);
      border-color:rgba(51,230,255,.25);
      transform:translateY(-2px);
    }
    .icon-btn{
      width:44px;
      height:44px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.04);
      color:#f2f7ff;
    }
    .icon-btn:hover,.icon-btn:focus-visible{
      background:rgba(255,255,255,.08);
      border-color:rgba(51,230,255,.24);
    }
    .site-input{
      width:100%;
      min-height:54px;
      border-radius:18px;
      background:rgba(7,12,24,.72);
      border:1px solid rgba(255,255,255,.12);
      color:#f6f9ff;
      padding:0 1rem 0 3rem;
      outline:none;
      transition:all .2s ease;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
    }
    .site-input::placeholder{color:rgba(226,232,240,.45)}
    .site-input:focus{
      border-color:rgba(51,230,255,.34);
      box-shadow:0 0 0 4px rgba(51,230,255,.10), inset 0 1px 0 rgba(255,255,255,.04);
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:.55rem;
      color:rgba(167,243,255,.90);
      letter-spacing:.16em;
      text-transform:uppercase;
      font-size:.72rem;
      font-weight:700;
    }
    .section-kicker::before{
      content:"";
      width:30px;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(51,230,255,.95), rgba(155,123,255,.4));
    }
    .section-title{
      font-size:clamp(1.55rem, 2.5vw, 2.4rem);
      line-height:1.18;
      letter-spacing:-.02em;
      font-weight:800;
    }
    .section-copy{
      color:var(--muted);
      font-size:1rem;
      max-width:72ch;
    }
    .chip-btn{
      padding:.55rem .9rem;
      background:rgba(255,255,255,.035);
      color:rgba(243,247,255,.86);
      border:1px solid rgba(255,255,255,.10);
      font-size:.92rem;
    }
    .chip-btn:hover,.chip-btn:focus-visible{
      background:rgba(51,230,255,.08);
      border-color:rgba(51,230,255,.24);
      color:#fff;
      transform:translateY(-1px);
    }
    .chip-btn.active{
      background:rgba(51,230,255,.12);
      border-color:rgba(51,230,255,.28);
      color:#fff;
    }
    .feature-card,.stat-card,.quote-card,.faq-item,.panel-card{
      border-radius:var(--radius);
    }
    .feature-card{
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.10);
      padding:1.15rem;
      transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }
    .feature-card:hover{
      transform:translateY(-3px);
      border-color:rgba(51,230,255,.24);
      box-shadow:0 18px 40px rgba(0,0,0,.24);
      background:rgba(255,255,255,.05);
    }
    .stat-card{
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
      border:1px solid rgba(255,255,255,.10);
      padding:1.2rem;
      min-height:128px;
      transition:all .2s ease;
    }
    .stat-card:hover{
      transform:translateY(-2px);
      border-color:rgba(155,123,255,.28);
    }
    .poster{
      position:relative;
      overflow:hidden;
      border-radius:24px;
      background:
        radial-gradient(circle at 20% 20%, rgba(51,230,255,.28), transparent 28%),
        radial-gradient(circle at 82% 18%, rgba(155,123,255,.22), transparent 26%),
        linear-gradient(145deg, rgba(12,19,36,.96), rgba(7,11,20,.98));
      border:1px solid rgba(255,255,255,.10);
    }
    .poster::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(120deg, transparent 0 42%, rgba(255,255,255,.05) 50%, transparent 58%),
        repeating-linear-gradient(180deg, transparent 0 24px, rgba(255,255,255,.03) 24px 25px);
      opacity:.65;
      pointer-events:none;
    }
    .poster-lines{
      position:absolute;
      inset:auto -8% 10% -8%;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(51,230,255,.9), rgba(155,123,255,.65), transparent);
      box-shadow:0 0 26px rgba(51,230,255,.42);
    }
    .mini-label{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.42rem .7rem;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.10);
      color:rgba(243,247,255,.9);
      font-size:.78rem;
    }
    .bullet-list li{
      position:relative;
      padding-left:1.3rem;
    }
    .bullet-list li::before{
      content:"";
      position:absolute;
      left:0;
      top:.73rem;
      width:.45rem;
      height:.45rem;
      border-radius:999px;
      background:linear-gradient(135deg, rgba(51,230,255,1), rgba(155,123,255,1));
      box-shadow:0 0 0 4px rgba(51,230,255,.08);
    }
    details.faq-item{
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.10);
      padding:0;
      overflow:hidden;
    }
    details.faq-item[open]{
      border-color:rgba(51,230,255,.22);
      background:rgba(255,255,255,.045);
    }
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      padding:1.05rem 1.1rem;
      font-weight:700;
      color:#f5f8ff;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    .faq-body{
      padding:0 1.1rem 1.05rem;
      color:var(--muted);
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-link{
      color:rgba(226,232,240,.76);
      transition:color .18s ease, transform .18s ease;
    }
    .footer-link:hover,.footer-link:focus-visible{
      color:#fff;
      transform:translateX(2px);
    }
    .mobile-panel{
      background:rgba(5,8,18,.95);
      border-top:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(20px);
      -webkit-backdrop-filter:blur(20px);
    }
    .hover-lift{
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .hover-lift:hover{
      transform:translateY(-4px);
      box-shadow:0 20px 50px rgba(0,0,0,.26);
    }
    @media (max-width: 1024px){
      .site-shell{width:min(100%, calc(100% - 24px))}
      .section-title{line-height:1.2}
    }
    @media (max-width: 768px){
      .nav-shell{border-radius:18px}
      .site-input{min-height:50px; padding-left:2.7rem}
      .section-copy{font-size:.97rem}
    }
    @media (max-width: 520px){
      .brand-mark{width:38px;height:38px;border-radius:12px}
      .btn-primary,.btn-secondary{width:100%}
      .chip-btn{width:100%; justify-content:center}
      details.faq-item summary{padding:.95rem 1rem}
      .faq-body{padding:0 1rem .95rem}
    }

/* roulang page: category2 */
:root{
      --bg:#050816;
      --bg2:#0b1020;
      --panel:rgba(11, 18, 34, .72);
      --panel-strong:rgba(8, 14, 27, .92);
      --line:rgba(148, 163, 184, .16);
      --line-strong:rgba(148, 163, 184, .26);
      --text:#e7eefc;
      --muted:rgba(226, 232, 240, .74);
      --muted-2:rgba(148, 163, 184, .82);
      --brand1:#34d7ff;
      --brand2:#9f7bff;
      --brand3:#5eead4;
      --warm:#ffb86b;
      --shadow:0 24px 80px rgba(0,0,0,.38);
      --shadow-soft:0 16px 36px rgba(0,0,0,.24);
      --r-lg:22px;
      --r-xl:28px;
      --r-2xl:34px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      color:var(--text);
      font-family:ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      line-height:1.72;
      background:
        radial-gradient(1000px 700px at 12% 8%, rgba(52, 215, 255, .14), transparent 55%),
        radial-gradient(900px 600px at 88% 12%, rgba(159, 123, 255, .14), transparent 56%),
        radial-gradient(800px 500px at 50% 92%, rgba(94, 234, 212, .08), transparent 54%),
        linear-gradient(180deg, #040712 0%, #070b16 34%, #04070f 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,.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
      background-size:72px 72px;
      mask-image: radial-gradient(circle at center, black 56%, transparent 100%);
      opacity:.38;
    }
    a{color:inherit; text-decoration:none}
    img{max-width:100%; display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(52,215,255,.24); color:#fff}
    :focus-visible{outline:2px solid rgba(52,215,255,.88); outline-offset:3px}

    .site-shell{
      width:min(1240px, calc(100% - 32px));
      margin-inline:auto;
    }
    .glass-card{
      background:linear-gradient(180deg, rgba(17, 25, 42, .82), rgba(9, 14, 26, .72));
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(18px);
      -webkit-backdrop-filter:blur(18px);
    }
    .glass-card-strong{
      background:linear-gradient(180deg, rgba(17, 25, 42, .92), rgba(8, 12, 22, .86));
      border:1px solid var(--line-strong);
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
      -webkit-backdrop-filter:blur(18px);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      font-weight:800;
      color:#fff;
      background:
        radial-gradient(circle at 30% 30%, rgba(255,255,255,.45), transparent 42%),
        linear-gradient(135deg, rgba(52,215,255,.95), rgba(159,123,255,.9));
      box-shadow:0 0 0 1px rgba(255,255,255,.12) inset, 0 12px 32px rgba(52,215,255,.18);
    }
    .nav-link,.footer-link,.chip{
      transition:all .22s ease;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.62rem .98rem;
      border-radius:999px;
      color:rgba(233,240,250,.82);
      border:1px solid transparent;
      font-size:.94rem;
      font-weight:600;
      letter-spacing:.01em;
    }
    .nav-link:hover,.nav-link:focus-visible{
      color:#fff;
      background:rgba(255,255,255,.05);
      border-color:rgba(255,255,255,.08);
      box-shadow:0 0 0 1px rgba(52,215,255,.08) inset;
    }
    .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(52,215,255,.24), rgba(159,123,255,.24));
      border-color:rgba(255,255,255,.14);
      box-shadow:0 0 0 1px rgba(255,255,255,.06) inset, 0 12px 28px rgba(52,215,255,.10);
    }
    .footer-link{
      color:rgba(226,232,240,.72);
      position:relative;
    }
    .footer-link:hover,.footer-link:focus-visible{
      color:#fff;
      text-shadow:0 0 16px rgba(52,215,255,.22);
    }
    .footer-link::after{
      content:"";
      position:absolute;
      left:0;
      bottom:-2px;
      width:100%;
      height:1px;
      transform:scaleX(0);
      transform-origin:left;
      background:linear-gradient(90deg, rgba(52,215,255,.9), rgba(159,123,255,.9));
      transition:transform .22s ease;
    }
    .footer-link:hover::after,.footer-link:focus-visible::after{transform:scaleX(1)}
    .chip{
      display:inline-flex;
      align-items:center;
      gap:.4rem;
      padding:.52rem .84rem;
      border-radius:999px;
      border:1px solid rgba(148,163,184,.2);
      background:rgba(255,255,255,.03);
      color:rgba(233,240,250,.84);
      font-size:.88rem;
      white-space:nowrap;
    }
    .chip:hover,.chip:focus-visible{
      background:rgba(255,255,255,.06);
      border-color:rgba(52,215,255,.3);
      color:#fff;
      box-shadow:0 0 0 1px rgba(52,215,255,.06) inset;
    }
    .btn-primary,.btn-secondary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.55rem;
      min-height:48px;
      padding:.88rem 1.2rem;
      border-radius:999px;
      font-weight:700;
      letter-spacing:.01em;
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, rgba(52,215,255,.95), rgba(159,123,255,.92));
      box-shadow:0 16px 34px rgba(79, 128, 255, .22);
      border:1px solid rgba(255,255,255,.18);
    }
    .btn-primary:hover,.btn-primary:focus-visible{
      transform:translateY(-2px);
      box-shadow:0 20px 42px rgba(79, 128, 255, .3), 0 0 0 1px rgba(255,255,255,.14) inset;
    }
    .btn-secondary{
      color:#f2f7ff;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(148,163,184,.22);
    }
    .btn-secondary:hover,.btn-secondary:focus-visible{
      transform:translateY(-2px);
      background:rgba(255,255,255,.06);
      border-color:rgba(52,215,255,.34);
      box-shadow:0 12px 28px rgba(0,0,0,.18);
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:.5rem;
      padding:.42rem .82rem;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(148,163,184,.16);
      color:rgba(219,231,249,.84);
      font-size:.86rem;
      font-weight:700;
      letter-spacing:.03em;
    }
    .section-kicker::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      background:linear-gradient(135deg, var(--brand1), var(--brand2));
      box-shadow:0 0 14px rgba(52,215,255,.38);
    }
    .section-title{
      font-size:clamp(1.48rem, 1.2rem + 1vw, 2.32rem);
      line-height:1.18;
      font-weight:800;
      letter-spacing:-.02em;
      color:#f7fbff;
    }
    .section-desc{
      color:var(--muted);
      font-size:clamp(.95rem, .92rem + .1vw, 1.02rem);
      line-height:1.8;
    }
    .hero-title{
      font-size:clamp(2rem, 1.2rem + 3vw, 4.4rem);
      line-height:1.04;
      font-weight:900;
      letter-spacing:-.04em;
      color:#f8fbff;
      text-wrap:balance;
    }
    .hero-sub{
      color:rgba(226,232,240,.76);
      font-size:clamp(1rem, .96rem + .3vw, 1.12rem);
      line-height:1.85;
      max-width:56ch;
    }
    .hero-panel{
      position:relative;
      overflow:hidden;
      border-radius:var(--r-2xl);
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      inset:-1px;
      background:
        radial-gradient(circle at 30% 18%, rgba(52,215,255,.22), transparent 30%),
        radial-gradient(circle at 84% 24%, rgba(159,123,255,.18), transparent 26%),
        radial-gradient(circle at 52% 84%, rgba(94,234,212,.12), transparent 30%);
      pointer-events:none;
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, transparent 0, rgba(255,255,255,.035) 50%, transparent 100%);
      mix-blend-mode:screen;
      pointer-events:none;
    }
    .stat-card{
      border-radius:20px;
      border:1px solid rgba(148,163,184,.16);
      background:rgba(255,255,255,.03);
      padding:1rem 1rem .95rem;
    }
    .stat-num{
      font-size:1.5rem;
      line-height:1;
      font-weight:800;
      color:#fff;
      letter-spacing:-.03em;
    }
    .stat-label{
      font-size:.86rem;
      color:var(--muted-2);
      margin-top:.4rem;
    }
    .search-shell{
      display:flex;
      gap:.75rem;
      padding:.42rem;
      border-radius:999px;
      border:1px solid rgba(148,163,184,.18);
      background:rgba(2,6,23,.42);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
    }
    .search-shell input{
      flex:1;
      min-width:0;
      border:none;
      outline:none;
      background:transparent;
      color:#fff;
      padding:.78rem 1rem;
    }
    .search-shell input::placeholder{
      color:rgba(203,213,225,.6);
    }
    .search-shell button{
      border:none;
      outline:none;
      padding:.78rem 1.05rem;
      border-radius:999px;
      color:#fff;
      font-weight:700;
      background:linear-gradient(135deg, rgba(52,215,255,.9), rgba(159,123,255,.88));
      box-shadow:0 10px 24px rgba(79, 128, 255, .18);
      transition:transform .2s ease, box-shadow .2s ease;
    }
    .search-shell button:hover,.search-shell button:focus-visible{
      transform:translateY(-1px);
      box-shadow:0 16px 32px rgba(79, 128, 255, .28);
    }
    .topbar{
      position:fixed;
      top:0;
      left:0;
      right:0;
      z-index:60;
      transition:all .25s ease;
    }
    .topbar.scrolled .topbar-inner{
      background:rgba(7,11,19,.88);
      border-color:rgba(148,163,184,.2);
      box-shadow:0 16px 40px rgba(0,0,0,.28);
    }
    .topbar-inner{
      border:1px solid rgba(255,255,255,.06);
      background:linear-gradient(180deg, rgba(6, 10, 20, .54), rgba(6, 10, 20, .36));
      backdrop-filter:blur(18px);
      -webkit-backdrop-filter:blur(18px);
    }
    .mobile-drawer{
      max-height:0;
      opacity:0;
      overflow:hidden;
      pointer-events:none;
      transition:max-height .28s ease, opacity .22s ease;
    }
    .mobile-drawer.open{
      max-height:420px;
      opacity:1;
      pointer-events:auto;
    }
    .filter-bar{
      position:sticky;
      top:84px;
      z-index:35;
    }
    .filter-pill{
      padding:.68rem .96rem;
      border-radius:999px;
      border:1px solid rgba(148,163,184,.2);
      background:rgba(255,255,255,.03);
      color:rgba(232,240,252,.82);
      font-size:.92rem;
      font-weight:600;
      transition:all .2s ease;
    }
    .filter-pill:hover,.filter-pill:focus-visible{
      border-color:rgba(52,215,255,.36);
      background:rgba(255,255,255,.06);
      color:#fff;
      transform:translateY(-1px);
    }
    .filter-pill.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(52,215,255,.18), rgba(159,123,255,.18));
      border-color:rgba(255,255,255,.16);
    }
    .update-card{
      border-radius:24px;
      border:1px solid rgba(148,163,184,.16);
      background:linear-gradient(180deg, rgba(12, 18, 34, .78), rgba(7, 12, 24, .7));
      box-shadow:0 18px 42px rgba(0,0,0,.22);
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
      overflow:hidden;
    }
    .update-card:hover{
      transform:translateY(-4px);
      border-color:rgba(52,215,255,.28);
      box-shadow:0 22px 52px rgba(0,0,0,.3);
    }
    .mini-cover{
      background:
        radial-gradient(circle at 30% 30%, rgba(52,215,255,.22), transparent 24%),
        radial-gradient(circle at 80% 20%, rgba(159,123,255,.2), transparent 24%),
        linear-gradient(135deg, rgba(13,21,39,.98), rgba(23,13,44,.92));
      border:1px solid rgba(255,255,255,.04);
      min-height:166px;
      position:relative;
      overflow:hidden;
    }
    .mini-cover::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg, transparent 20%, rgba(255,255,255,.05) 50%, transparent 80%);
      transform:translateX(-18%);
      opacity:.9;
    }
    .update-list{
      border-radius:24px;
      border:1px solid rgba(148,163,184,.14);
      background:rgba(255,255,255,.025);
    }
    .update-item{
      display:flex;
      gap:1rem;
      padding:1rem 1rem;
      border-bottom:1px solid rgba(148,163,184,.12);
      transition:background .2s ease;
    }
    .update-item:last-child{border-bottom:none}
    .update-item:hover{background:rgba(255,255,255,.03)}
    .time-dot{
      flex:0 0 auto;
      width:10px;
      height:10px;
      border-radius:999px;
      margin-top:.48rem;
      background:linear-gradient(135deg, var(--brand1), var(--brand2));
      box-shadow:0 0 16px rgba(52,215,255,.34);
    }
    .step-card{
      border-radius:24px;
      border:1px solid rgba(148,163,184,.16);
      background:rgba(255,255,255,.03);
      padding:1.1rem 1.1rem 1.15rem;
    }
    .step-num{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      font-weight:800;
      color:#fff;
      background:linear-gradient(135deg, rgba(52,215,255,.28), rgba(159,123,255,.28));
      border:1px solid rgba(255,255,255,.1);
      box-shadow:0 10px 22px rgba(52,215,255,.08);
    }
    details.faq{
      border-radius:22px;
      border:1px solid rgba(148,163,184,.14);
      background:rgba(255,255,255,.03);
      overflow:hidden;
    }
    details.faq + details.faq{margin-top:.9rem}
    details.faq summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      padding:1rem 1.05rem;
      font-weight:700;
      color:#f7fbff;
    }
    details.faq summary::-webkit-details-marker{display:none}
    details.faq .faq-body{
      padding:0 1.05rem 1rem;
      color:var(--muted);
      line-height:1.78;
    }
    .footer-link{
      display:inline-block;
      padding:.1rem 0;
    }
    .section-divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(148,163,184,.24), transparent);
    }
    .focus-ring{
      box-shadow:0 0 0 1px rgba(52,215,255,.12) inset, 0 0 0 4px rgba(52,215,255,.08);
    }
    @media (max-width: 1024px){
      .filter-bar{top:76px}
    }
    @media (max-width: 768px){
      .site-shell{width:min(100%, calc(100% - 24px))}
      .topbar-inner{border-radius:22px}
      .hero-title{line-height:1.06}
      .filter-bar{top:70px}
      .search-shell{border-radius:26px; flex-direction:column}
      .search-shell button{width:100%}
    }
    @media (max-width: 520px){
      .brand-mark{width:38px; height:38px; border-radius:12px}
      .nav-link{padding:.55rem .82rem}
      .btn-primary,.btn-secondary{width:100%}
      .filter-pill{padding:.6rem .82rem}
      details.faq summary{padding:.95rem .95rem}
      .update-item{padding:.92rem .95rem}
    }

/* roulang page: category1 */
:root{
      --bg:#050816;
      --bg-2:#0a1022;
      --panel:rgba(12,18,38,.66);
      --panel-strong:rgba(10,15,30,.86);
      --line:rgba(255,255,255,.10);
      --line-strong:rgba(255,255,255,.16);
      --text:#edf4ff;
      --muted:rgba(226,235,255,.72);
      --soft:rgba(226,235,255,.56);
      --accent:#35d7ff;
      --accent-2:#8d6bff;
      --accent-3:#48f0c6;
      --warn:#ffbf6b;
      --shadow:0 22px 70px rgba(0,0,0,.42);
      --shadow-soft:0 10px 30px rgba(0,0,0,.24);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
    }
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      background:
        radial-gradient(circle at 15% 12%, rgba(53,215,255,.14), transparent 26%),
        radial-gradient(circle at 88% 16%, rgba(141,107,255,.14), transparent 24%),
        radial-gradient(circle at 50% 90%, rgba(72,240,198,.08), transparent 28%),
        linear-gradient(180deg, #040713 0%, #070b18 45%, #050816 100%);
      min-height:100vh;
      overflow-x:hidden;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.25;
      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:32px 32px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.7), rgba(0,0,0,0));
    }
    a{color:inherit;text-decoration:none;transition:all .24s ease}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(53,215,255,.22);color:#fff}

    .site-shell{
      width:min(1280px, calc(100% - 1.5rem));
      margin:0 auto;
    }
    .glass-card{
      background:var(--panel);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }
    .glass-strong{
      background:var(--panel-strong);
      border:1px solid var(--line-strong);
      box-shadow:var(--shadow);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
    }
    .nav-shell{
      background:rgba(7,11,24,.42);
      border-bottom:1px solid rgba(255,255,255,.08);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      transition:background .25s ease, border-color .25s ease, box-shadow .25s ease;
    }
    header.is-scrolled .nav-shell{
      background:rgba(5,8,22,.86);
      border-bottom-color:rgba(255,255,255,.11);
      box-shadow:0 12px 40px rgba(0,0,0,.26);
    }
    .brand-mark{
      width:44px;height:44px;border-radius:16px;
      display:grid;place-items:center;
      background:
        linear-gradient(145deg, rgba(53,215,255,.92), rgba(141,107,255,.86));
      color:white;font-weight:900;font-size:18px;
      box-shadow:0 12px 30px rgba(53,215,255,.18), inset 0 1px 0 rgba(255,255,255,.24);
      flex:none;
    }
    .nav-link{
      display:inline-flex;align-items:center;justify-content:center;
      min-height:42px;padding:.55rem .95rem;
      border-radius:999px;
      color:rgba(238,244,255,.78);
      font-weight:700;
      font-size:.96rem;
      letter-spacing:.01em;
      border:1px solid transparent;
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      color:#fff;
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.10);
      box-shadow:0 10px 24px rgba(0,0,0,.14);
    }
    .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(53,215,255,.22), rgba(141,107,255,.20));
      border-color:rgba(121,212,255,.28);
      box-shadow:0 12px 24px rgba(53,215,255,.10);
    }
    .footer-link{
      color:rgba(226,235,255,.70);
      position:relative;
    }
    .footer-link:hover,
    .footer-link:focus-visible{
      color:#fff;
      text-shadow:0 0 18px rgba(53,215,255,.22);
    }
    .footer-link::after,
    .nav-link::after{
      content:"";
      position:absolute;
      left:50%;
      bottom:8px;
      width:0;
      height:1px;
      background:linear-gradient(90deg, var(--accent), var(--accent-2));
      transform:translateX(-50%);
      transition:width .22s ease;
      opacity:.92;
    }
    .footer-link:hover::after,
    .nav-link:hover::after{width:58%}
    .hero-badge,
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.45rem .85rem;
      border-radius:999px;
      font-size:.82rem;
      color:rgba(240,247,255,.88);
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.10);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
    }
    .hero-title{
      font-size:clamp(2.2rem, 4.8vw, 4.5rem);
      line-height:1.02;
      letter-spacing:-.03em;
      font-weight:900;
      text-wrap:balance;
    }
    .hero-sub{
      color:var(--muted);
      font-size:clamp(1rem, 1.6vw, 1.12rem);
      line-height:1.78;
      max-width:56ch;
    }
    .primary-btn,
    .secondary-btn,
    .ghost-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.55rem;
      min-height:48px;
      padding:.85rem 1.1rem;
      border-radius:16px;
      font-weight:800;
      letter-spacing:.01em;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
      will-change:transform;
    }
    .primary-btn{
      color:#fff;
      background:linear-gradient(135deg, rgba(53,215,255,.96), rgba(141,107,255,.92));
      box-shadow:0 14px 30px rgba(53,215,255,.18), 0 0 0 1px rgba(255,255,255,.08) inset;
    }
    .primary-btn:hover,
    .primary-btn:focus-visible{
      transform:translateY(-2px);
      box-shadow:0 20px 38px rgba(53,215,255,.25), 0 0 0 1px rgba(255,255,255,.12) inset;
    }
    .secondary-btn,
    .ghost-btn{
      color:rgba(241,247,255,.9);
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.12);
    }
    .secondary-btn:hover,
    .ghost-btn:hover,
    .secondary-btn:focus-visible,
    .ghost-btn:focus-visible{
      transform:translateY(-2px);
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.18);
      box-shadow:0 14px 28px rgba(0,0,0,.18);
    }
    .chip{
      display:inline-flex;align-items:center;gap:.45rem;
      min-height:38px;
      padding:.48rem .88rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.04);
      color:rgba(230,239,255,.78);
      font-size:.88rem;
      font-weight:700;
      white-space:nowrap;
    }
    .chip.active{
      color:#fff;
      border-color:rgba(53,215,255,.32);
      background:linear-gradient(135deg, rgba(53,215,255,.20), rgba(141,107,255,.16));
      box-shadow:0 10px 22px rgba(53,215,255,.10);
    }
    .chip:hover,
    .chip:focus-visible{
      color:#fff;
      border-color:rgba(255,255,255,.18);
      background:rgba(255,255,255,.08);
    }
    .search-box{
      display:flex;
      align-items:center;
      gap:.65rem;
      padding:.7rem;
      border-radius:20px;
      background:rgba(7,12,26,.72);
      border:1px solid rgba(255,255,255,.12);
      box-shadow:0 16px 32px rgba(0,0,0,.18), inset 0 1px 0 rgba(255,255,255,.04);
    }
    .search-box input{
      width:100%;
      background:transparent;
      border:0;
      outline:none;
      color:#fff;
      padding:.35rem .2rem;
    }
    .search-box input::placeholder{color:rgba(226,235,255,.42)}
    .search-box:focus-within{
      border-color:rgba(53,215,255,.36);
      box-shadow:0 0 0 4px rgba(53,215,255,.08), 0 16px 32px rgba(0,0,0,.18);
    }
    .section-title{
      font-size:clamp(1.4rem, 2.2vw, 2rem);
      line-height:1.15;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .section-desc{
      color:var(--muted);
      line-height:1.75;
      font-size:.98rem;
    }
    .content-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid rgba(255,255,255,.10);
      background:rgba(12,18,38,.68);
      box-shadow:var(--shadow-soft);
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease;
    }
    .content-card:hover{
      transform:translateY(-4px);
      border-color:rgba(121,212,255,.24);
      box-shadow:0 22px 50px rgba(0,0,0,.34);
      background:rgba(13,20,43,.78);
    }
    .content-card .thumb{
      position:relative;
      overflow:hidden;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.10);
      background:
        radial-gradient(circle at 20% 18%, rgba(53,215,255,.26), transparent 32%),
        radial-gradient(circle at 76% 22%, rgba(141,107,255,.25), transparent 28%),
        linear-gradient(145deg, rgba(18,26,52,.98), rgba(8,12,25,.94));
      min-height:160px;
    }
    .content-card .thumb::before{
      content:"";
      position:absolute;
      inset:-20%;
      background:
        linear-gradient(115deg, transparent 28%, rgba(255,255,255,.10) 45%, transparent 56%),
        linear-gradient(180deg, transparent 0%, rgba(0,0,0,.18) 100%);
      transform:rotate(8deg);
      opacity:.65;
    }
    .content-card .thumb::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(4,8,18,.02), rgba(4,8,18,.56));
    }
    .badge{
      display:inline-flex;align-items:center;gap:.35rem;
      padding:.34rem .72rem;
      border-radius:999px;
      background:rgba(5,11,24,.7);
      border:1px solid rgba(255,255,255,.12);
      color:rgba(244,248,255,.92);
      font-size:.75rem;
      font-weight:800;
      letter-spacing:.02em;
      backdrop-filter: blur(14px);
    }
    .stat-box{
      border-radius:22px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.04);
      padding:1rem 1rem 1.05rem;
    }
    .stat-num{
      font-size:1.7rem;
      font-weight:900;
      line-height:1;
      letter-spacing:-.03em;
      background:linear-gradient(135deg, #fff, rgba(53,215,255,.95));
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .metric{
      color:var(--soft);
      font-size:.84rem;
      margin-top:.35rem;
    }
    .rank-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:.85rem;
      padding:.88rem .95rem;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .rank-item:hover{
      transform:translateX(2px);
      border-color:rgba(53,215,255,.22);
      background:rgba(255,255,255,.06);
    }
    .rank-index{
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(53,215,255,.26), rgba(141,107,255,.22));
      border:1px solid rgba(255,255,255,.10);
      color:#fff;font-weight:900;font-size:.84rem;
      flex:none;
    }
    .rank-meta{color:var(--soft);font-size:.8rem}
    .list-line{
      display:flex;
      gap:.8rem;
      padding:.92rem 0;
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .list-line:last-child{border-bottom:0}
    .pulse{
      width:10px;height:10px;border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 6px rgba(53,215,255,.12);
      margin-top:.45rem;flex:none;
    }
    .focusable:focus-visible,
    input:focus-visible,
    summary:focus-visible,
    a:focus-visible,
    button:focus-visible{
      outline:none;
      box-shadow:0 0 0 3px rgba(53,215,255,.18), 0 0 0 1px rgba(53,215,255,.42) inset;
    }
    details.faq-item{
      border-radius:20px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.04);
      overflow:hidden;
    }
    details.faq-item[open]{
      border-color:rgba(121,212,255,.22);
      background:rgba(255,255,255,.06);
    }
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:1rem 1.1rem;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      font-weight:800;
      color:#fff;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    .faq-body{
      padding:0 1.1rem 1rem 1.1rem;
      color:var(--muted);
      line-height:1.75;
      font-size:.96rem;
    }
    .page-soft-line{
      border-top:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, transparent, rgba(255,255,255,.02));
    }
    .mobile-menu{
      position:fixed;
      inset:74px 12px auto 12px;
      z-index:60;
      transform-origin:top right;
      transition:opacity .2s ease, transform .2s ease;
    }
    .mobile-menu[hidden]{display:none}
    .mobile-menu-panel{
      border-radius:24px;
      background:rgba(7,11,24,.94);
      border:1px solid rgba(255,255,255,.10);
      box-shadow:var(--shadow);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      overflow:hidden;
    }
    .mobile-menu.open{
      animation:dropIn .22s ease both;
    }
    @keyframes dropIn{
      from{opacity:0;transform:translateY(-10px) scale(.98)}
      to{opacity:1;transform:translateY(0) scale(1)}
    }
    .footer-link,
    .nav-link,
    .chip,
    .primary-btn,
    .secondary-btn,
    .ghost-btn,
    .content-card,
    .rank-item{
      will-change:transform;
    }
    @media (max-width: 1024px){
      .hero-title{text-wrap:pretty}
    }
    @media (max-width: 768px){
      .site-shell{width:min(100% - 1rem, 1280px)}
      .hero-title{font-size:clamp(2rem, 10vw, 3.2rem)}
      .section-title{font-size:1.5rem}
    }
    @media (max-width: 520px){
      .brand-mark{width:40px;height:40px;border-radius:14px}
      .primary-btn,.secondary-btn,.ghost-btn{width:100%}
      .search-box{padding:.6rem}
      details.faq-item summary{padding:.9rem 1rem}
      .faq-body{padding:0 1rem .95rem 1rem}
    }

.overflow-x-auto::-webkit-scrollbar{display:none}

/* roulang page: category3 */
:root{
      --bg0:#060912;
      --bg1:#0b1020;
      --bg2:#11182c;
      --card:rgba(12, 18, 32, .72);
      --card2:rgba(18, 26, 46, .64);
      --line:rgba(255,255,255,.10);
      --line-strong:rgba(255,255,255,.16);
      --text:#f4f7fb;
      --muted:rgba(226,232,240,.72);
      --soft:rgba(226,232,240,.56);
      --cyan:#59f0e7;
      --cyan2:#21c7d9;
      --violet:#9c7cff;
      --violet2:#6a56ff;
      --warm:#f1b46b;
      --shadow:0 18px 50px rgba(0,0,0,.34);
      --shadow-strong:0 26px 80px rgba(0,0,0,.52);
      --radius:22px;
      --radius-lg:28px;
      --shell:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(1200px 800px at 15% 5%, rgba(89,240,231,.12), transparent 40%),
        radial-gradient(900px 650px at 85% 10%, rgba(156,124,255,.12), transparent 38%),
        radial-gradient(900px 700px at 50% 110%, rgba(33,199,217,.08), transparent 35%),
        linear-gradient(180deg, var(--bg0), var(--bg1) 42%, #0a0e18 100%);
      font-family: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
      line-height:1.7;
      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: 72px 72px;
      mask-image: radial-gradient(circle at center, rgba(0,0,0,.72), transparent 86%);
      opacity:.18;
      z-index:-2;
    }
    body::after{
      content:"";
      position:fixed;
      inset:-20%;
      pointer-events:none;
      background:
        radial-gradient(circle at 20% 20%, rgba(89,240,231,.08), transparent 18%),
        radial-gradient(circle at 80% 30%, rgba(156,124,255,.08), transparent 16%),
        radial-gradient(circle at 50% 72%, rgba(33,199,217,.06), transparent 20%);
      filter: blur(24px);
      opacity:.8;
      z-index:-3;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(89,240,231,.28);color:#fff}
    .site-shell{
      width:min(var(--shell), calc(100% - 2rem));
      margin-inline:auto;
    }
    .glass-card{
      background:linear-gradient(180deg, rgba(17,24,39,.70), rgba(10,15,26,.58));
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }
    .glass-soft{
      background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.08);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      color:#041016;
      font-weight:800;
      letter-spacing:.06em;
      background:linear-gradient(135deg, var(--cyan), #d8fffb 55%, var(--violet));
      box-shadow:0 12px 30px rgba(89,240,231,.18);
    }
    .nav-wrap{
      position:fixed;
      left:0;right:0;top:0;
      z-index:60;
      transition:all .28s ease;
    }
    .nav-wrap.is-scrolled .nav-inner{
      background:rgba(9, 14, 25, .90);
      border-color:rgba(255,255,255,.12);
      box-shadow:0 14px 40px rgba(0,0,0,.25);
    }
    .nav-inner{
      margin:14px auto 0;
      width:min(var(--shell), calc(100% - 1.25rem));
      border-radius:24px;
      background:rgba(8, 12, 22, .56);
      border:1px solid rgba(255,255,255,.09);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.72rem 1rem;
      color:rgba(233,240,248,.76);
      border-radius:999px;
      transition:all .22s ease;
      font-size:.95rem;
      font-weight:600;
      outline:none;
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      color:#fff;
      background:rgba(255,255,255,.06);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.09);
    }
    .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(89,240,231,.15), rgba(156,124,255,.15));
      box-shadow:inset 0 0 0 1px rgba(89,240,231,.22), 0 8px 20px rgba(0,0,0,.16);
    }
    .nav-link.active::after{
      content:"";
      position:absolute;
      left:16px;right:16px;bottom:7px;
      height:1px;border-radius:999px;
      background:linear-gradient(90deg, transparent, rgba(89,240,231,.8), transparent);
      opacity:.95;
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:.76rem 1.08rem;
      border-radius:999px;
      background:linear-gradient(135deg, rgba(89,240,231,.18), rgba(156,124,255,.18));
      border:1px solid rgba(89,240,231,.26);
      color:#fff;
      font-weight:700;
      box-shadow:0 10px 28px rgba(89,240,231,.08);
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .nav-cta:hover,.nav-cta:focus-visible{
      transform:translateY(-1px);
      box-shadow:0 16px 34px rgba(89,240,231,.12);
      border-color:rgba(89,240,231,.42);
      outline:none;
    }
    .menu-btn{
      width:44px;height:44px;border-radius:14px;
      display:grid;place-items:center;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.05);
      color:#fff;
      transition:all .22s ease;
    }
    .menu-btn:hover,.menu-btn:focus-visible{
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.18);
      outline:none;
    }
    .mobile-panel{
      display:none;
      border-top:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(8,12,22,.96), rgba(8,12,22,.88));
    }
    .mobile-panel.open{display:block}
    .hero{
      position:relative;
      padding-top:7.2rem;
      padding-bottom:2rem;
    }
    .hero-frame{
      position:relative;
      overflow:hidden;
      border-radius:32px;
    }
    .hero-frame::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 18% 18%, rgba(89,240,231,.14), transparent 26%),
        radial-gradient(circle at 80% 16%, rgba(156,124,255,.16), transparent 22%),
        linear-gradient(135deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
      pointer-events:none;
    }
    .hero-frame::after{
      content:"";
      position:absolute;
      inset:auto -18% -40% -18%;
      height:300px;
      background:linear-gradient(90deg, transparent, rgba(89,240,231,.10), rgba(156,124,255,.12), transparent);
      filter:blur(24px);
      transform:rotate(-5deg);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.38rem .78rem;
      border-radius:999px;
      border:1px solid rgba(89,240,231,.18);
      background:rgba(89,240,231,.08);
      color:#d6fffb;
      font-size:.86rem;
      font-weight:700;
      letter-spacing:.02em;
    }
    .hero-title{
      font-size:clamp(2.15rem, 4vw, 4.2rem);
      line-height:1.08;
      letter-spacing:-.03em;
      font-weight:900;
    }
    .hero-sub{
      color:var(--muted);
      font-size:clamp(1rem, 1.35vw, 1.1rem);
      line-height:1.8;
      max-width:56ch;
    }
    .search-shell{
      display:flex;
      gap:.65rem;
      align-items:center;
      padding:.45rem;
      border-radius:22px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.10);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
    }
    .search-input{
      width:100%;
      min-width:0;
      padding:.95rem 1rem;
      border:none;
      background:transparent;
      color:#fff;
      outline:none;
    }
    .search-input::placeholder{color:rgba(226,232,240,.48)}
    .search-shell:focus-within{
      border-color:rgba(89,240,231,.28);
      box-shadow:0 0 0 4px rgba(89,240,231,.08);
    }
    .btn-primary,.btn-secondary,.btn-ghost{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.5rem;
      border-radius:999px;
      padding:.9rem 1.15rem;
      font-weight:800;
      transition:all .22s ease;
      outline:none;
    }
    .btn-primary{
      color:#061019;
      background:linear-gradient(135deg, var(--cyan), #d9fffb 55%, var(--violet));
      box-shadow:0 16px 38px rgba(89,240,231,.16);
    }
    .btn-primary:hover,.btn-primary:focus-visible{
      transform:translateY(-2px);
      box-shadow:0 20px 42px rgba(89,240,231,.24);
    }
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.12);
    }
    .btn-secondary:hover,.btn-secondary:focus-visible{
      background:rgba(255,255,255,.07);
      border-color:rgba(255,255,255,.20);
      transform:translateY(-1px);
    }
    .btn-ghost{
      color:#dce7f5;
      padding:.75rem 1rem;
      border:1px dashed rgba(255,255,255,.12);
      background:rgba(255,255,255,.03);
    }
    .btn-ghost:hover,.btn-ghost:focus-visible{
      background:rgba(255,255,255,.06);
      border-color:rgba(89,240,231,.18);
      color:#fff;
    }
    .stat-card{
      padding:1rem 1rem 1.05rem;
      border-radius:22px;
      background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.08);
    }
    .stat-value{
      display:block;
      font-size:1.45rem;
      line-height:1.1;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .stat-label{
      display:block;
      margin-top:.22rem;
      font-size:.86rem;
      color:rgba(226,232,240,.64);
    }
    .section{
      padding:1.1rem 0 1.6rem;
    }
    .section-heading{
      margin-bottom:1rem;
    }
    .section-kicker{
      color:#bffcf7;
      font-weight:800;
      font-size:.88rem;
      letter-spacing:.1em;
      text-transform:uppercase;
    }
    .section-title{
      font-size:clamp(1.45rem, 2vw, 2.25rem);
      line-height:1.18;
      font-weight:900;
      margin-top:.35rem;
      letter-spacing:-.02em;
    }
    .section-desc{
      margin-top:.55rem;
      color:var(--muted);
      max-width:68ch;
    }
    .feature-card,
    .collection-card,
    .feedback-card,
    .flow-card,
    .faq-card{
      border-radius:var(--radius);
      background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:0 12px 32px rgba(0,0,0,.18);
      transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
    }
    .feature-card:hover,
    .collection-card:hover,
    .feedback-card:hover,
    .flow-card:hover{
      transform:translateY(-4px);
      border-color:rgba(89,240,231,.18);
      box-shadow:0 18px 40px rgba(0,0,0,.26);
    }
    .collection-card{
      overflow:hidden;
      position:relative;
    }
    .collection-card::before{
      content:"";
      position:absolute;
      inset:-1px;
      background:linear-gradient(135deg, rgba(89,240,231,.16), rgba(156,124,255,.14), transparent 70%);
      opacity:0;
      transition:opacity .22s ease;
      pointer-events:none;
    }
    .collection-card:hover::before{opacity:1}
    .card-cover{
      min-height:164px;
      position:relative;
      overflow:hidden;
      background:
        radial-gradient(circle at 30% 20%, rgba(89,240,231,.20), transparent 24%),
        radial-gradient(circle at 82% 18%, rgba(156,124,255,.20), transparent 22%),
        linear-gradient(160deg, rgba(19,26,46,.92), rgba(7,12,22,.92));
    }
    .card-cover::after{
      content:"";
      position:absolute;
      inset:auto -10% -30% -10%;
      height:120px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);
      transform:rotate(-8deg);
      filter:blur(10px);
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.36rem .68rem;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.08);
      color:#eef6ff;
      font-size:.78rem;
      font-weight:700;
      letter-spacing:.02em;
    }
    .badge-cyan{
      background:rgba(89,240,231,.10);
      border-color:rgba(89,240,231,.18);
      color:#d6fffb;
    }
    .badge-violet{
      background:rgba(156,124,255,.10);
      border-color:rgba(156,124,255,.18);
      color:#ece2ff;
    }
    .badge-warm{
      background:rgba(241,180,107,.12);
      border-color:rgba(241,180,107,.18);
      color:#ffe7c9;
    }
    .tag-chip{
      display:inline-flex;
      align-items:center;
      padding:.46rem .76rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.04);
      color:rgba(237,243,250,.82);
      font-size:.85rem;
      transition:all .2s ease;
      cursor:pointer;
      user-select:none;
    }
    .tag-chip:hover,
    .tag-chip:focus-visible,
    .tag-chip.active{
      background:rgba(89,240,231,.12);
      border-color:rgba(89,240,231,.24);
      color:#fff;
      outline:none;
    }
    .filter-bar{
      position:sticky;
      top:88px;
      z-index:30;
      border-radius:24px;
      background:rgba(8,12,22,.82);
      border:1px solid rgba(255,255,255,.08);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }
    .mini-list{
      display:grid;
      gap:.9rem;
    }
    .mini-item{
      display:flex;
      gap:.85rem;
      align-items:flex-start;
      padding:1rem;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .mini-icon{
      flex:0 0 auto;
      width:40px;height:40px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(89,240,231,.16), rgba(156,124,255,.16));
      color:#fff;
      border:1px solid rgba(255,255,255,.08);
    }
    .mini-title{font-weight:800}
    .mini-desc{color:rgba(226,232,240,.68);font-size:.92rem;margin-top:.18rem}
    .kpi-row{
      display:grid;
      gap:1rem;
    }
    .flow-step{
      padding:1rem 1rem 1.1rem;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .flow-num{
      width:32px;height:32px;border-radius:10px;
      display:grid;place-items:center;
      background:rgba(89,240,231,.12);
      border:1px solid rgba(89,240,231,.18);
      color:#dffefa;
      font-weight:800;
      margin-bottom:.8rem;
    }
    .feedback-quote{
      color:rgba(243,247,252,.92);
      font-size:.98rem;
      line-height:1.75;
    }
    details.faq-item{
      padding:0;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      overflow:hidden;
    }
    details.faq-item[open]{border-color:rgba(89,240,231,.18)}
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:1rem 1.05rem;
      font-weight:800;
      color:#f7fbff;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      outline:none;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    details.faq-item summary:focus-visible{
      box-shadow:inset 0 0 0 2px rgba(89,240,231,.24);
      border-radius:20px;
    }
    .faq-body{
      padding:0 1.05rem 1rem;
      color:rgba(226,232,240,.72);
      font-size:.96rem;
      line-height:1.8;
    }
    .cta-band{
      border-radius:32px;
      overflow:hidden;
      background:
        radial-gradient(circle at 15% 20%, rgba(89,240,231,.16), transparent 24%),
        radial-gradient(circle at 84% 25%, rgba(156,124,255,.16), transparent 24%),
        linear-gradient(135deg, rgba(255,255,255,.07), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.10);
      box-shadow:var(--shadow-strong);
    }
    .footer-link{
      color:rgba(226,232,240,.70);
      transition:color .2s ease, text-shadow .2s ease;
    }
    .footer-link:hover,
    .footer-link:focus-visible{
      color:#fff;
      text-shadow:0 0 18px rgba(89,240,231,.28);
      outline:none;
    }
    .clamp-2{
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .clamp-3{
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .page-gap{padding:1rem 0 0}
    .sr-only-focusable:focus{
      position:static!important;
      width:auto;height:auto;margin:0;overflow:visible;clip:auto;
    }
    @media (max-width: 1024px){
      .nav-inner{border-radius:22px}
      .filter-bar{top:82px}
    }
    @media (max-width: 767px){
      .hero{padding-top:6.5rem}
      .hero-frame{border-radius:26px}
      .nav-inner{width:min(var(--shell), calc(100% - .75rem)); margin-top:10px}
      .filter-bar{top:74px}
      .section{padding:1rem 0 1.35rem}
      .cta-band{border-radius:26px}
    }