/* roulang page: index */
:root{
      --bg:#0b0e14;
      --bg2:#0f1521;
      --panel:#111827;
      --panel-strong:#0d1320;
      --text:#eef3ff;
      --muted:#9ba7bd;
      --line:rgba(255,255,255,.10);
      --accent:#39f6e0;
      --accent2:#b36bff;
      --radius:20px;
      --radius-sm:16px;
      --shadow:0 18px 50px rgba(0,0,0,.55);
      --container:1280px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 10%, rgba(57,246,224,.13), transparent 20%),
        radial-gradient(circle at 80% 15%, rgba(179,107,255,.12), transparent 22%),
        radial-gradient(circle at 50% 100%, rgba(57,246,224,.08), transparent 18%),
        linear-gradient(180deg, #070a11 0%, #0b0e14 38%, #090d15 100%);
      font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.26;
      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: linear-gradient(180deg, rgba(0,0,0,.9), rgba(0,0,0,.3));
      z-index:-1;
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(180deg, rgba(255,255,255,.05), transparent 10%, transparent 90%, rgba(255,255,255,.04));
      opacity:.14;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(57,246,224,.25);color:#fff}
    ::-webkit-scrollbar{width:10px;height:10px}
    ::-webkit-scrollbar-thumb{background:linear-gradient(180deg, rgba(57,246,224,.45), rgba(179,107,255,.45));border-radius:999px}
    ::-webkit-scrollbar-track{background:rgba(255,255,255,.04)}
    .site-wrap{position:relative}
    .container-wide{width:min(100% - 2rem, var(--container));margin-inline:auto}
    .section-space{padding-block:5rem}
    @media (min-width:768px){.section-space{padding-block:6.5rem}}
    .section-title{
      font-size: clamp(1.55rem, 2vw, 2.1rem);
      line-height:1.2;
      font-weight:800;
      letter-spacing:.01em;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:.55rem;
      color:var(--accent);
      font-size:.8rem;
      font-weight:700;
      letter-spacing:.18em;
      text-transform:uppercase;
    }
    .section-copy{
      color:var(--muted);
      max-width: 60ch;
      font-size: .98rem;
    }
    .panel{
      background:linear-gradient(180deg, rgba(18,24,38,.96), rgba(12,16,27,.95));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .panel::before{
      content:"";
      position:absolute;
      inset:0;
      border-radius:inherit;
      pointer-events:none;
      background:
        linear-gradient(135deg, rgba(57,246,224,.09), transparent 24%),
        linear-gradient(315deg, rgba(179,107,255,.08), transparent 28%);
      opacity:.7;
    }
    .panel-soft{
      background:linear-gradient(180deg, rgba(17,24,39,.88), rgba(10,14,23,.92));
      border:1px solid rgba(255,255,255,.08);
      border-radius:var(--radius-sm);
      box-shadow:var(--shadow);
    }
    .panel-hover{
      transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease, background .25s ease;
    }
    .panel-hover:hover{
      transform: translateY(-4px) scale(1.02);
      border-color: rgba(57,246,224,.34);
      box-shadow: 0 20px 60px rgba(0,0,0,.58), 0 0 0 1px rgba(57,246,224,.12), 0 0 30px rgba(57,246,224,.11);
    }
    .btn-base{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:0 1.15rem;
      border-radius:999px;
      font-weight:700;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-base:hover{transform:translateY(-2px)}
    .btn-base:focus-visible,
    .nav-link:focus-visible,
    .card-link:focus-visible,
    summary:focus-visible{
      outline:2px solid rgba(57,246,224,.7);
      outline-offset:3px;
    }
    .btn-primary{
      background:linear-gradient(135deg, rgba(57,246,224,1), rgba(179,107,255,1));
      color:#061119;
      box-shadow:0 10px 30px rgba(57,246,224,.22);
    }
    .btn-primary:hover{box-shadow:0 14px 36px rgba(57,246,224,.26), 0 0 0 1px rgba(57,246,224,.28)}
    .btn-secondary{
      background:rgba(255,255,255,.04);
      color:var(--text);
      border-color:rgba(255,255,255,.12);
    }
    .btn-secondary:hover{
      border-color:rgba(57,246,224,.32);
      box-shadow:0 10px 30px rgba(0,0,0,.36), 0 0 0 1px rgba(57,246,224,.12);
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.42rem .78rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
      color:#e8edf7;
      font-size:.85rem;
      line-height:1;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.48rem .78rem;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      color:#e8edf7;
      font-size:.87rem;
      transition:all .2s ease;
      white-space:nowrap;
    }
    .chip:hover{
      border-color:rgba(57,246,224,.28);
      color:#fff;
      background:rgba(57,246,224,.08);
    }
    .chip.active{
      background:rgba(57,246,224,.14);
      border-color:rgba(57,246,224,.35);
      box-shadow:0 0 0 1px rgba(57,246,224,.16);
      color:#fff;
    }
    .nav-link{
      color:#dbe5f5;
      font-weight:600;
      padding:.55rem .9rem;
      border-radius:999px;
      transition: all .2s ease;
      border:1px solid transparent;
    }
    .nav-link:hover{
      color:#fff;
      background:rgba(255,255,255,.04);
      border-color:rgba(255,255,255,.08);
    }
    .nav-link[aria-current="page"]{
      color:#fff;
      background:rgba(57,246,224,.11);
      border-color:rgba(57,246,224,.26);
      box-shadow:0 0 0 1px rgba(57,246,224,.14), 0 0 20px rgba(57,246,224,.08);
    }
    .glow-line{
      position:absolute;
      inset:0 auto auto 0;
      width:100%;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(57,246,224,.9), rgba(179,107,255,.9), transparent);
      opacity:.85;
    }
    .track{
      display:flex;
      gap:1rem;
      overflow-x:auto;
      padding-bottom:.4rem;
      scroll-snap-type:x proximity;
      scrollbar-width:thin;
    }
    .track > *{scroll-snap-align:start; flex:0 0 auto}
    .poster{
      position:relative;
      min-height:148px;
      overflow:hidden;
      border-radius:18px;
      background:
        radial-gradient(circle at 20% 18%, rgba(57,246,224,.22), transparent 26%),
        radial-gradient(circle at 80% 12%, rgba(179,107,255,.22), transparent 24%),
        linear-gradient(160deg, rgba(17,24,39,1), rgba(10,15,25,1) 55%, rgba(13,18,30,1));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:0 12px 30px rgba(0,0,0,.35);
    }
    .poster::after{
      content:"";
      position:absolute;
      inset:auto 0 0;
      height:55%;
      background:linear-gradient(180deg, transparent, rgba(6,10,18,.88));
      pointer-events:none;
    }
    .poster .label{
      position:absolute;
      left:1rem;
      right:1rem;
      bottom:1rem;
      z-index:1;
    }
    .soft-grid{
      display:grid;
      gap:1rem;
    }
    .faq summary{
      list-style:none;
      cursor:pointer;
    }
    .faq summary::-webkit-details-marker{display:none}
    .faq .faq-icon{
      width:1.5rem;height:1.5rem;
      border-radius:999px;
      display:grid;place-items:center;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      transition:transform .2s ease, background .2s ease;
      flex:none;
    }
    .faq details[open] .faq-icon{transform:rotate(45deg);background:rgba(57,246,224,.12)}
    .hero-ring{
      background:conic-gradient(from 180deg, rgba(57,246,224,1) 0 72%, rgba(255,255,255,.09) 72% 100%);
      border-radius:999px;
      padding:14px;
      box-shadow:0 0 0 1px rgba(57,246,224,.16), 0 0 38px rgba(57,246,224,.14);
    }
    .hero-ring > div{
      background:linear-gradient(180deg, rgba(14,18,30,1), rgba(9,13,21,1));
      border:1px solid rgba(255,255,255,.08);
    }
    .progress-bar{
      height:10px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
    }
    .progress-bar > span{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg, rgba(57,246,224,1), rgba(179,107,255,1));
      box-shadow:0 0 24px rgba(57,246,224,.2);
    }
    .menu-shadow{
      box-shadow: 0 15px 40px rgba(0,0,0,.5);
    }
    @media (max-width: 767px){
      .container-wide{width:min(100% - 1.1rem, var(--container))}
      .section-space{padding-block:4.25rem}
    }

/* roulang page: category1 */
:root{
      --bg:#070b12;
      --bg-soft:#0a101b;
      --panel:#0b1120;
      --panel-2:#10182a;
      --line:rgba(255,255,255,.10);
      --line-strong:rgba(255,255,255,.16);
      --text:#eaf0ff;
      --muted:#93a4c0;
      --neon:#44f1d2;
      --violet:#a855f7;
      --ice:#dff6ff;
      --radius-xl:20px;
      --radius-lg:16px;
      --radius-md:14px;
      --shadow-glow:0 0 0 1px rgba(255,255,255,.04), 0 16px 40px rgba(0,0,0,.45);
      --shadow-glow-strong:0 0 0 1px rgba(68,241,210,.18), 0 22px 56px rgba(0,0,0,.60);
      --header-h:78px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
      line-height:1.65;
      background:
        radial-gradient(circle at 18% 12%, rgba(68,241,210,.11), transparent 24%),
        radial-gradient(circle at 80% 0%, rgba(168,85,247,.10), transparent 20%),
        radial-gradient(circle at 50% 100%, rgba(255,255,255,.04), transparent 26%),
        linear-gradient(180deg, #070b12 0%, #090d17 42%, #070b12 100%);
      min-height:100vh;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      overflow-x:hidden;
    }
    a,button,input,textarea,select{font:inherit}
    a{text-decoration:none;color:inherit}
    img{max-width:100%;display:block}
    button,input{outline:none}
    ::selection{background:rgba(68,241,210,.22);color:#fff}
    :focus-visible{
      outline:2px solid rgba(68,241,210,.9);
      outline-offset:3px;
    }
    .container-wide{
      width:min(100% - 2rem, 1280px);
      margin-inline:auto;
    }
    .bg-panel{background:linear-gradient(180deg, rgba(16,24,42,.98), rgba(11,17,32,.98));}
    .bg-panel-2{background:linear-gradient(180deg, rgba(13,19,34,.96), rgba(10,16,27,.96));}
    .text-neon{color:var(--neon);}
    .text-muted{color:var(--muted);}
    .border-line{border-color:var(--line);}
    .border-line-strong{border-color:var(--line-strong);}
    .shadow-glow{box-shadow:var(--shadow-glow);}
    .shadow-glow-strong{box-shadow:var(--shadow-glow-strong);}
    .card-surface{
      position:relative;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg, rgba(16,24,42,.96), rgba(10,16,28,.96));
      box-shadow:var(--shadow-glow);
      transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease, background .25s ease;
    }
    .card-surface:hover{
      transform:translateY(-4px);
      border-color:rgba(68,241,210,.24);
      box-shadow:var(--shadow-glow-strong);
    }
    .poster-card{
      position:relative;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.10);
      border-radius:var(--radius-xl);
      background:
        radial-gradient(circle at 85% 15%, rgba(68,241,210,.20), transparent 28%),
        radial-gradient(circle at 12% 82%, rgba(168,85,247,.18), transparent 25%),
        linear-gradient(145deg, rgba(18,27,47,.98), rgba(10,15,25,.98));
      box-shadow:var(--shadow-glow);
      transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
    }
    .poster-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(7,11,18,.02), rgba(7,11,18,.48)),
        repeating-linear-gradient(180deg, rgba(255,255,255,.03) 0, rgba(255,255,255,.03) 1px, transparent 1px, transparent 7px);
      pointer-events:none;
      opacity:.65;
    }
    .poster-card:hover{
      transform:translateY(-5px) scale(1.03);
      border-color:rgba(68,241,210,.28);
      box-shadow:var(--shadow-glow-strong);
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:.6rem 1rem;
      border-radius:999px;
      border:1px solid transparent;
      color:#cbd5e1;
      font-size:.94rem;
      font-weight:600;
      letter-spacing:.01em;
      transition:transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
    }
    .nav-link:hover{
      color:#fff;
      background:rgba(255,255,255,.05);
      border-color:rgba(255,255,255,.08);
      transform:translateY(-1px);
    }
    .nav-link[aria-current="page"]{
      color:#fff;
      background:linear-gradient(135deg, rgba(68,241,210,.16), rgba(168,85,247,.12));
      border-color:rgba(68,241,210,.36);
      box-shadow:0 0 0 1px rgba(68,241,210,.08), 0 12px 24px rgba(68,241,210,.10);
    }
    .cta-btn,
    .cta-btn-alt,
    .ghost-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.5rem;
      min-height:48px;
      padding:.8rem 1.25rem;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      transition:transform .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease, color .22s ease;
      cursor:pointer;
      white-space:nowrap;
    }
    .cta-btn{
      color:#04131a;
      background:linear-gradient(135deg, #7efbe2, #44f1d2 44%, #b7f0ff 100%);
      box-shadow:0 10px 30px rgba(68,241,210,.18);
    }
    .cta-btn:hover{
      transform:translateY(-2px);
      box-shadow:0 0 0 1px rgba(68,241,210,.18), 0 14px 36px rgba(68,241,210,.24);
    }
    .cta-btn-alt{
      color:#fff;
      background:rgba(255,255,255,.04);
      border-color:rgba(255,255,255,.10);
    }
    .cta-btn-alt:hover{
      transform:translateY(-2px);
      border-color:rgba(68,241,210,.28);
      background:rgba(255,255,255,.06);
      box-shadow:0 12px 28px rgba(0,0,0,.38);
    }
    .ghost-btn{
      color:#dce7ff;
      background:rgba(255,255,255,.03);
      border-color:rgba(255,255,255,.08);
    }
    .ghost-btn:hover{
      transform:translateY(-2px);
      border-color:rgba(168,85,247,.28);
      box-shadow:0 12px 28px rgba(0,0,0,.36);
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      min-height:38px;
      padding:.5rem .9rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
      color:#d7e2ff;
      font-size:.88rem;
      font-weight:600;
      transition:transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
      white-space:nowrap;
    }
    .chip:hover{
      transform:translateY(-1px);
      background:rgba(255,255,255,.06);
      border-color:rgba(68,241,210,.20);
      box-shadow:0 0 0 1px rgba(68,241,210,.08);
    }
    .chip.is-active{
      color:#fff;
      background:linear-gradient(135deg, rgba(68,241,210,.18), rgba(168,85,247,.14));
      border-color:rgba(68,241,210,.30);
      box-shadow:0 0 0 1px rgba(68,241,210,.10), 0 10px 24px rgba(68,241,210,.08);
    }
    .meter{
      height:10px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      overflow:hidden;
    }
    .meter > span{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg, #44f1d2, #a855f7);
      box-shadow:0 0 20px rgba(68,241,210,.28);
    }
    .faq-item{
      border:1px solid rgba(255,255,255,.09);
      border-radius:18px;
      background:rgba(255,255,255,.04);
      box-shadow:0 0 0 1px rgba(255,255,255,.02);
      overflow:hidden;
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      padding:1rem 1.1rem;
      font-weight:700;
      color:#eef4ff;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item .faq-body{
      padding:0 1.1rem 1.1rem 1.1rem;
      color:var(--muted);
      font-size:.96rem;
      line-height:1.75;
    }
    .faq-chevron{
      flex:none;
      width:1.9rem;
      height:1.9rem;
      border-radius:999px;
      display:grid;
      place-items:center;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.04);
      transition:transform .22s ease, background .22s ease, border-color .22s ease;
    }
    .faq-item[open] .faq-chevron{
      transform:rotate(180deg);
      border-color:rgba(68,241,210,.30);
      background:rgba(68,241,210,.08);
    }
    .track{
      scroll-snap-type:x mandatory;
      scrollbar-width:none;
    }
    .track::-webkit-scrollbar{display:none}
    .soft-grid{
      background-image:
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
      background-size:32px 32px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 120%);
      opacity:.22;
    }
    .ring-line{
      position:relative;
    }
    .ring-line::after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:-1px;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(68,241,210,.55), rgba(168,85,247,.45), transparent);
    }
    @media (max-width: 768px){
      .container-wide{width:min(100% - 1rem, 1280px);}
    }