/* roulang page: index */
:root{
      --bg:#0b0b12;
      --bg2:#10111a;
      --panel:rgba(18,20,31,.86);
      --panel2:rgba(24,26,40,.92);
      --line:rgba(255,255,255,.08);
      --line2:rgba(255,255,255,.13);
      --text:#f6f7fb;
      --muted:#a1a8b8;
      --muted2:#7f8799;
      --pink:#ff4fd8;
      --pink2:#b74dff;
      --cyan:#45f0e0;
      --cyan2:#74d8ff;
      --amber:#ffb347;
      --green:#65e6a8;
      --radius:20px;
      --radius-lg:28px;
      --shadow:0 20px 60px rgba(0,0,0,.36);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 18% 12%, rgba(255,79,216,.16), transparent 28%),
        radial-gradient(circle at 84% 16%, rgba(69,240,224,.12), transparent 24%),
        radial-gradient(circle at 50% 0%, rgba(183,77,255,.12), transparent 20%),
        linear-gradient(180deg, #090910 0%, #0b0b12 32%, #090a10 100%);
      font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
      line-height:1.7;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(120deg, rgba(255,255,255,.03) 0 1px, transparent 1px 100%),
        linear-gradient(0deg, rgba(255,255,255,.02) 0 1px, transparent 1px 100%);
      background-size: 56px 56px, 56px 56px;
      opacity:.18;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.55), transparent 84%);
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(255,79,216,.28);color:#fff}
    .container{
      width:min(1180px, calc(100% - 32px));
      margin:0 auto;
      position:relative;
      z-index:1;
    }
    .glass{
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
    }
    .panel{
      background:linear-gradient(180deg, rgba(20,22,34,.96), rgba(14,16,24,.94));
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }
    .soft-border{border:1px solid var(--line)}
    .soft-border-strong{border:1px solid var(--line2)}
    .nav-link{
      position:relative;
      color:var(--muted);
      transition:.25s ease;
    }
    .nav-link:hover,
    .nav-link:focus{
      color:#fff;
      transform:translateY(-1px);
      outline:none;
    }
    .nav-link.active{
      color:#fff;
    }
    .nav-link.active:after,
    .nav-link:hover:after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:-8px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg, var(--pink), var(--cyan));
    }
    .brand-mark{
      display:inline-flex;
      align-items:center;
      gap:.7rem;
      font-weight:800;
      letter-spacing:.02em;
    }
    .brand-badge{
      width:38px;height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(255,79,216,.95), rgba(183,77,255,.88) 55%, rgba(69,240,224,.82));
      box-shadow:0 10px 28px rgba(255,79,216,.28);
      color:#fff;
      font-size:18px;
    }
    .hero-wrap{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      border:1px solid rgba(255,255,255,.08);
      background:
        radial-gradient(circle at 18% 20%, rgba(255,79,216,.24), transparent 32%),
        radial-gradient(circle at 82% 12%, rgba(69,240,224,.16), transparent 28%),
        linear-gradient(135deg, rgba(15,16,25,.98), rgba(20,22,32,.92));
      box-shadow:0 24px 80px rgba(0,0,0,.44);
    }
    .hero-wrap:before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        linear-gradient(115deg, rgba(255,79,216,.14), transparent 32%),
        linear-gradient(250deg, rgba(69,240,224,.11), transparent 28%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:.5rem;
      padding:.45rem .8rem;
      border-radius:999px;
      color:#ffd8f5;
      background:rgba(255,79,216,.12);
      border:1px solid rgba(255,79,216,.22);
      font-size:.88rem;
      font-weight:600;
    }
    .cta-primary,
    .cta-secondary,
    .chip,
    .mini-pill{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.45rem;
      border-radius:999px;
      transition:.25s ease;
      font-weight:700;
    }
    .cta-primary{
      padding:.95rem 1.35rem;
      background:linear-gradient(135deg, var(--pink), var(--pink2) 52%, var(--cyan));
      color:#fff;
      box-shadow:0 16px 36px rgba(255,79,216,.22);
    }
    .cta-primary:hover,
    .cta-primary:focus{
      transform:translateY(-2px);
      filter:brightness(1.05);
      outline:none;
    }
    .cta-secondary{
      padding:.95rem 1.15rem;
      background:rgba(255,255,255,.03);
      color:#fff;
      border:1px solid var(--line2);
    }
    .cta-secondary:hover,
    .cta-secondary:focus{
      transform:translateY(-2px);
      border-color:rgba(255,255,255,.22);
      background:rgba(255,255,255,.06);
      outline:none;
    }
    .chip,
    .mini-pill{
      padding:.42rem .75rem;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
      color:var(--muted);
      font-size:.82rem;
    }
    .chip.is-active{
      color:#fff;
      background:rgba(69,240,224,.12);
      border-color:rgba(69,240,224,.28);
    }
    .section-title{
      font-size:clamp(1.4rem, 2vw, 2rem);
      line-height:1.18;
      font-weight:800;
      letter-spacing:-.02em;
    }
    .section-desc{
      color:var(--muted);
      max-width:64ch;
    }
    .grid-card{
      background:linear-gradient(180deg, rgba(23,25,38,.96), rgba(15,17,25,.93));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:0 18px 50px rgba(0,0,0,.25);
      transition:.28s ease;
    }
    .grid-card:hover{
      transform:translateY(-4px);
      border-color:rgba(255,255,255,.16);
      box-shadow:0 22px 60px rgba(0,0,0,.34);
    }
    .metric{
      border-radius:18px;
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
      border:1px solid var(--line);
    }
    .metric strong{
      display:block;
      font-size:1.28rem;
      line-height:1.1;
      color:#fff;
      margin-bottom:.2rem;
    }
    .dot{
      width:8px;height:8px;border-radius:999px;background:var(--green);
      box-shadow:0 0 0 5px rgba(101,230,168,.12);
      flex:0 0 auto;
    }
    .ranking-num{
      width:38px;height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(255,79,216,.2), rgba(69,240,224,.16));
      border:1px solid rgba(255,255,255,.08);
      color:#fff;
      font-weight:800;
    }
    .pricing-hot{
      border-color:rgba(255,179,71,.36);
      box-shadow:0 0 0 1px rgba(255,179,71,.12), 0 24px 70px rgba(0,0,0,.34);
      background:linear-gradient(180deg, rgba(34,27,16,.98), rgba(18,16,22,.96));
    }
    .pricing-hot .badge-hot{
      background:rgba(255,179,71,.15);
      color:#ffd9a6;
      border:1px solid rgba(255,179,71,.28);
    }
    details.faq{
      border-radius:18px;
      background:linear-gradient(180deg, rgba(19,21,33,.96), rgba(13,15,23,.94));
      border:1px solid var(--line);
      overflow:hidden;
    }
    details.faq summary{
      list-style:none;
      cursor:pointer;
      padding:1rem 1.1rem;
      font-weight:700;
      color:#fff;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:1rem;
    }
    details.faq summary::-webkit-details-marker{display:none}
    details.faq[open] summary{
      border-bottom:1px solid var(--line);
    }
    details.faq .faq-body{
      padding:0 1.1rem 1rem 1.1rem;
      color:var(--muted);
    }
    .field{
      width:100%;
      height:52px;
      border-radius:16px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line2);
      color:#fff;
      padding:0 1rem;
      outline:none;
      transition:.22s ease;
    }
    .field::placeholder{color:#7e8698}
    .field:focus{
      border-color:rgba(69,240,224,.48);
      box-shadow:0 0 0 4px rgba(69,240,224,.12);
    }
    .footer-link{
      color:var(--muted);
      transition:.2s ease;
    }
    .footer-link:hover,
    .footer-link:focus{
      color:#fff;
      outline:none;
    }
    .ribbon{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.38rem .72rem;
      border-radius:999px;
      background:rgba(69,240,224,.1);
      border:1px solid rgba(69,240,224,.24);
      color:#d7fffb;
      font-size:.84rem;
      font-weight:700;
    }
    .divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.14), transparent);
    }
    .sticky-bar{
      position:sticky;
      top:0;
      z-index:40;
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      background:rgba(10,11,17,.68);
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .reco-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:1rem;
    }
    .shadow-soft{box-shadow:0 14px 42px rgba(0,0,0,.24)}
    .kpi-bar{
      height:10px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      overflow:hidden;
    }
    .kpi-bar > span{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg, var(--pink), var(--cyan));
    }
    .tap-area{
      min-height:100%;
    }
    @media (max-width: 1024px){
      .reco-grid{grid-template-columns:1fr}
    }
    @media (max-width: 768px){
      .container{width:min(100% - 24px, 1180px)}
      .hero-wrap{border-radius:24px}
      .section-title{font-size:1.4rem}
      .brand-badge{width:34px;height:34px;border-radius:12px}
    }
    @media (max-width: 520px){
      .cta-primary,.cta-secondary{width:100%}
      .chip{white-space:nowrap}
      .hero-wrap{border-radius:20px}
      details.faq summary{padding:.95rem}
      .field{height:50px}
    }

/* roulang page: category1 */
:root{
      --bg:#0f1014;
      --bg-2:#151720;
      --panel:#171923;
      --panel-2:#1d2030;
      --line:rgba(255,255,255,.10);
      --line-2:rgba(255,255,255,.16);
      --text:#f4f6fb;
      --muted:rgba(244,246,251,.72);
      --soft:rgba(244,246,251,.52);
      --brand:#ff4ea3;
      --brand-2:#ff7bca;
      --mint:#37e7cb;
      --cyan:#61d9ff;
      --gold:#f4b44c;
      --shadow:0 18px 50px rgba(0,0,0,.38);
      --radius:20px;
      --radius-sm:14px;
      --radius-xs:12px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 10%, rgba(255,78,163,.16), transparent 28%),
        radial-gradient(circle at 85% 20%, rgba(55,231,203,.10), transparent 24%),
        radial-gradient(circle at 40% 80%, rgba(97,217,255,.08), transparent 28%),
        linear-gradient(180deg, #0b0c10 0%, #10121a 45%, #0d0f15 100%);
      min-height:100vh;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    ::selection{background:rgba(255,78,163,.28);color:#fff}
    .container{
      width:min(calc(100% - 32px), var(--container));
      margin:0 auto;
    }
    .site-shell{
      position:relative;
      isolation:isolate;
    }
    .site-shell::before{
      content:"";
      position:fixed;
      inset:-10% -10% auto -10%;
      height:420px;
      background:linear-gradient(180deg, rgba(255,78,163,.08), transparent 70%);
      pointer-events:none;
      z-index:-1;
    }
    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(16px);
      background:rgba(9,10,14,.68);
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .brand-mark{
      display:inline-flex;
      align-items:center;
      gap:.7rem;
      font-weight:800;
      letter-spacing:.01em;
    }
    .brand-badge{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-width:48px;
      height:32px;
      padding:0 .85rem;
      border-radius:999px;
      background:linear-gradient(135deg, var(--brand), #ff8ec4);
      color:#fff;
      box-shadow:0 10px 24px rgba(255,78,163,.22);
      font-size:.92rem;
      line-height:1;
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      color:rgba(244,246,251,.74);
      transition:all .2s ease;
      padding:.55rem .2rem;
    }
    .nav-link:hover{
      color:#fff;
      transform:translateY(-1px);
    }
    .nav-link::after{
      content:"";
      position:absolute;
      left:0;
      bottom:-.18rem;
      width:100%;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg, var(--brand), var(--mint));
      transform:scaleX(0);
      transform-origin:left;
      transition:transform .22s ease;
    }
    .nav-link:hover::after,
    .nav-link.active::after,
    .nav-link[aria-current="page"]::after{
      transform:scaleX(1);
    }
    .nav-link.active,
    .nav-link[aria-current="page"]{
      color:#fff;
    }
    .footer-link{
      color:rgba(244,246,251,.68);
      transition:all .2s ease;
    }
    .footer-link:hover{
      color:#fff;
      transform:translateX(2px);
    }
    .panel{
      background:linear-gradient(180deg, rgba(24,26,36,.92), rgba(18,20,28,.88));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .panel-soft{
      background:linear-gradient(180deg, rgba(25,28,40,.82), rgba(18,20,30,.75));
      border:1px solid rgba(255,255,255,.09);
      border-radius:var(--radius-sm);
    }
    .hero-title{
      font-size:clamp(2.1rem, 5vw, 4.4rem);
      line-height:1.04;
      letter-spacing:-.03em;
    }
    .section-title{
      font-size:clamp(1.4rem, 2.5vw, 2.1rem);
      line-height:1.12;
      letter-spacing:-.02em;
    }
    .section-sub{
      color:var(--muted);
      line-height:1.8;
    }
    .chip, .sort-btn, .tag, .status-pill, .mini-badge{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.04);
      color:rgba(244,246,251,.82);
      transition:all .2s ease;
      white-space:nowrap;
    }
    .chip:hover, .sort-btn:hover, .tag:hover{
      border-color:rgba(255,255,255,.22);
      background:rgba(255,255,255,.06);
      transform:translateY(-1px);
    }
    .chip.active, .sort-btn.active{
      color:#fff;
      border-color:rgba(255,78,163,.55);
      background:linear-gradient(135deg, rgba(255,78,163,.22), rgba(97,217,255,.12));
      box-shadow:0 12px 30px rgba(255,78,163,.12);
    }
    .cta-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.55rem;
      border-radius:999px;
      padding:.9rem 1.25rem;
      font-weight:700;
      color:#16161b;
      background:linear-gradient(135deg, #ffdf76, #ff8f3c);
      box-shadow:0 14px 30px rgba(244,180,76,.22);
      transition:all .2s ease;
    }
    .cta-btn:hover{
      transform:translateY(-2px);
      filter:saturate(1.05) brightness(1.03);
      box-shadow:0 16px 36px rgba(244,180,76,.30);
    }
    .cta-btn-secondary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.5rem;
      border-radius:999px;
      padding:.9rem 1.2rem;
      color:#fff;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.14);
      transition:all .2s ease;
    }
    .cta-btn-secondary:hover{
      transform:translateY(-2px);
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.22);
    }
    .hero-stat{
      border-radius:18px;
      background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.10);
    }
    .glow-line{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(255,78,163,.8), rgba(55,231,203,.7), transparent);
    }
    .feature-card, .topic-card, .case-card, .price-card, .aside-card, .flow-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius);
      border:1px solid rgba(255,255,255,.09);
      background:linear-gradient(180deg, rgba(25,27,37,.92), rgba(19,21,30,.88));
      box-shadow:0 12px 30px rgba(0,0,0,.20);
      transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }
    .feature-card:hover,
    .topic-card:hover,
    .case-card:hover,
    .price-card:hover,
    .aside-card:hover,
    .flow-card:hover{
      transform:translateY(-4px);
      border-color:rgba(255,255,255,.18);
      box-shadow:0 20px 42px rgba(0,0,0,.30);
    }
    .feature-card::before,
    .topic-card::before,
    .case-card::before,
    .price-card::before{
      content:"";
      position:absolute;
      inset:0 auto auto 0;
      width:100%;
      height:1px;
      background:linear-gradient(90deg, rgba(255,78,163,.0), rgba(255,78,163,.6), rgba(97,217,255,.35), rgba(255,78,163,.0));
      opacity:.7;
    }
    .icon-box{
      width:44px;
      height:44px;
      border-radius:14px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:linear-gradient(135deg, rgba(255,78,163,.16), rgba(55,231,203,.12));
      border:1px solid rgba(255,255,255,.08);
      color:#fff;
    }
    .metric{
      border-radius:16px;
      padding:14px 16px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .metric .num{
      font-size:1.45rem;
      line-height:1;
      font-weight:800;
      letter-spacing:-.02em;
    }
    .metric .label{
      color:var(--soft);
      font-size:.86rem;
      margin-top:.3rem;
    }
    .cover{
      background:
        radial-gradient(circle at top right, rgba(255,78,163,.28), transparent 42%),
        radial-gradient(circle at bottom left, rgba(55,231,203,.20), transparent 38%),
        linear-gradient(135deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
    }
    .status-dot{
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--mint);
      box-shadow:0 0 0 4px rgba(55,231,203,.12);
      display:inline-block;
    }
    .price{
      font-size:2.2rem;
      line-height:1;
      font-weight:800;
      letter-spacing:-.03em;
    }
    .price small{
      font-size:.95rem;
      color:var(--soft);
      font-weight:600;
    }
    details.faq-item{
      border:1px solid rgba(255,255,255,.09);
      background:rgba(255,255,255,.03);
      border-radius:18px;
      overflow:hidden;
    }
    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:700;
      color:#fff;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    details.faq-item summary .mark{
      width:28px;
      height:28px;
      border-radius:999px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border:1px solid rgba(255,255,255,.12);
      color:rgba(255,255,255,.85);
      transition:transform .2s ease, background .2s ease;
      flex:0 0 auto;
    }
    details.faq-item[open] summary .mark{
      background:rgba(255,78,163,.14);
      transform:rotate(45deg);
    }
    details.faq-item .faq-content{
      padding:0 1.1rem 1rem 1.1rem;
      color:var(--muted);
      line-height:1.75;
    }
    .divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.14), transparent);
    }
    .input-shell{
      display:flex;
      align-items:center;
      gap:.65rem;
      border-radius:16px;
      padding:.92rem 1rem;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.10);
      transition:all .2s ease;
    }
    .input-shell:focus-within{
      border-color:rgba(255,78,163,.50);
      box-shadow:0 0 0 4px rgba(255,78,163,.10);
    }
    .input-shell input{
      width:100%;
      background:transparent;
      border:none;
      outline:none;
      color:#fff;
    }
    .input-shell input::placeholder{
      color:rgba(244,246,251,.42);
    }
    .sticky-note{
      position:sticky;
      top:96px;
    }
    .badge-gradient{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.42rem .72rem;
      border-radius:999px;
      color:#fff;
      border:1px solid rgba(255,255,255,.12);
      background:linear-gradient(135deg, rgba(255,78,163,.16), rgba(97,217,255,.12));
    }
    .mini-list li{
      position:relative;
      padding-left:1.15rem;
      color:rgba(244,246,251,.76);
      line-height:1.7;
    }
    .mini-list li::before{
      content:"";
      position:absolute;
      left:0;
      top:.62rem;
      width:.5rem;
      height:.5rem;
      border-radius:999px;
      background:linear-gradient(135deg, var(--brand), var(--mint));
      box-shadow:0 0 0 4px rgba(255,78,163,.08);
    }
    .mobile-menu{
      display:none;
    }
    .mobile-menu.show{
      display:block;
    }
    @media (max-width: 767px){
      .sticky-note{position:static}
      .hero-title{letter-spacing:-.025em}
      .mobile-menu{
        border-top:1px solid rgba(255,255,255,.08);
        background:rgba(8,9,13,.95);
        backdrop-filter:blur(16px);
      }
    }
    @media (max-width: 520px){
      .container{width:min(calc(100% - 20px), var(--container))}
      .hero-title{font-size:clamp(1.9rem, 11vw, 2.8rem)}
      .price{font-size:1.95rem}
    }