/* roulang page: index */
:root{
      --bg:#0b0612;
      --bg2:#12071f;
      --panel:#150b24;
      --panel2:#1a0d2c;
      --line:rgba(255,255,255,.08);
      --line2:rgba(61,242,255,.18);
      --text:#f6f0ff;
      --muted:#b6a9c9;
      --pink:#ff4fd8;
      --pink2:#d946ef;
      --cyan:#3df2ff;
      --amber:#f5b94b;
      --shadow-pink: 0 0 0 1px rgba(255,79,216,.26), 4px 4px 0 rgba(255,79,216,.16);
      --shadow-cyan: 0 0 0 1px rgba(61,242,255,.20), 4px 4px 0 rgba(61,242,255,.14);
      --radius: 8px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 10%, rgba(255,79,216,.16), transparent 22%),
        radial-gradient(circle at 85% 18%, rgba(61,242,255,.12), transparent 20%),
        radial-gradient(circle at 50% 80%, rgba(217,70,239,.10), transparent 25%),
        linear-gradient(180deg, #12071f 0%, #0b0612 46%, #09050f 100%);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.15;
      background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size:28px 28px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), rgba(0,0,0,.55) 70%, transparent 100%);
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.06;
      background: linear-gradient(180deg, transparent 0%, rgba(61,242,255,.18) 48%, transparent 100%);
      background-size: 100% 6px;
      mix-blend-mode: screen;
      animation: scan 12s linear infinite;
    }
    @keyframes scan{
      from{transform:translateY(-100%)}
      to{transform:translateY(100%)}
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    ::selection{background:rgba(255,79,216,.35);color:#fff}
    .wrap{width:min(1240px, calc(100% - 2rem)); margin-inline:auto}
    .pixel-card{
      position:relative;
      border:1px solid rgba(255,255,255,.10);
      border-radius:var(--radius);
      background: linear-gradient(180deg, rgba(26,13,44,.96), rgba(14,8,24,.96));
      box-shadow: 0 0 0 1px rgba(61,242,255,.06), 0 20px 45px rgba(0,0,0,.35);
      overflow:hidden;
      transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }
    .pixel-card:hover{
      transform: translateY(-2px);
      border-color: rgba(61,242,255,.36);
      box-shadow: 0 0 0 1px rgba(61,242,255,.14), 0 22px 50px rgba(0,0,0,.42);
    }
    .pixel-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 0% 0%, rgba(255,79,216,.11), transparent 35%),
        radial-gradient(circle at 100% 0%, rgba(61,242,255,.10), transparent 32%);
      pointer-events:none;
    }
    .section-title{
      font-weight:900;
      letter-spacing:.02em;
      text-shadow: 0 2px 0 rgba(0,0,0,.25);
    }
    .kicker{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      color:var(--cyan);
      letter-spacing:.16em;
      font-size:.72rem;
      text-transform:uppercase;
      font-weight:700;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.35rem .6rem;
      border-radius:.4rem;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.04);
      font-size:.75rem;
      line-height:1;
      white-space:nowrap;
    }
    .badge-hot{
      color:#ffd4f5;
      border-color:rgba(255,79,216,.45);
      background:rgba(255,79,216,.1);
      box-shadow:0 0 0 1px rgba(255,79,216,.06);
    }
    .badge-cyan{
      color:#c6fbff;
      border-color:rgba(61,242,255,.45);
      background:rgba(61,242,255,.08);
    }
    .badge-amber{
      color:#ffe3b0;
      border-color:rgba(245,185,75,.42);
      background:rgba(245,185,75,.08);
    }
    .neo-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.45rem;
      border-radius:.5rem;
      padding:.8rem 1.05rem;
      font-weight:800;
      letter-spacing:.01em;
      border:1px solid transparent;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease, color .18s ease;
      min-height:44px;
    }
    .neo-btn:hover{transform:translateY(-1px)}
    .btn-primary{
      color:#fff;
      background: linear-gradient(90deg, var(--pink), #b93cff);
      box-shadow: var(--shadow-pink);
    }
    .btn-primary:hover{
      box-shadow: 0 0 0 1px rgba(255,79,216,.48), 0 14px 26px rgba(255,79,216,.18);
    }
    .btn-secondary{
      color:#f6f0ff;
      background: rgba(255,255,255,.03);
      border-color: rgba(255,255,255,.12);
      box-shadow: var(--shadow-cyan);
    }
    .btn-secondary:hover{
      border-color: rgba(61,242,255,.42);
      background: rgba(61,242,255,.08);
    }
    .nav-link{
      position:relative;
      color:#dcd2ea;
      padding:.2rem 0;
      transition:color .18s ease, text-shadow .18s ease;
    }
    .nav-link:hover,.nav-link.active{
      color:#fff;
      text-shadow:0 0 12px rgba(255,79,216,.28);
    }
    .nav-link.active::after,
    .nav-link:hover::after{
      content:"";
      position:absolute;
      left:0; right:0; bottom:-.4rem;
      height:2px;
      background:linear-gradient(90deg,var(--pink),var(--cyan));
      box-shadow:0 0 12px rgba(255,79,216,.6);
    }
    .mobile-panel{
      background: linear-gradient(180deg, rgba(19,10,31,.98), rgba(10,6,16,.98));
      border-top:1px solid rgba(61,242,255,.18);
    }
    .label{
      color:var(--muted);
      font-size:.85rem;
    }
    .glow-grid{
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 50% 20%, rgba(255,79,216,.15), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(61,242,255,.12), transparent 22%),
        radial-gradient(circle at 12% 74%, rgba(217,70,239,.10), transparent 24%);
      pointer-events:none;
    }
    .scan-panel{
      position:absolute;
      inset:0;
      pointer-events:none;
      opacity:.5;
      background:
        linear-gradient(180deg, transparent, rgba(61,242,255,.05), transparent);
      background-size:100% 7px;
      animation: panelScan 10s linear infinite;
    }
    @keyframes panelScan{
      from{transform:translateY(-90%)}
      to{transform:translateY(90%)}
    }
    .meter{
      height:.55rem;
      border-radius:999px;
      overflow:hidden;
      background:#221132;
      border:1px solid rgba(255,255,255,.08);
    }
    .meter > span{
      display:block;
      height:100%;
      background: linear-gradient(90deg, var(--pink), var(--cyan));
    }
    details summary{
      list-style:none;
      cursor:pointer;
    }
    details summary::-webkit-details-marker{display:none}
    details[open] .faq-box{
      border-color:rgba(255,79,216,.45);
      box-shadow: 0 0 0 1px rgba(255,79,216,.10), 0 14px 28px rgba(0,0,0,.32);
      background: linear-gradient(180deg, rgba(30,14,50,.96), rgba(16,9,28,.96));
    }
    input, select, textarea{
      width:100%;
      background:#0f0818;
      color:var(--text);
      border:1px solid rgba(255,255,255,.12);
      border-radius:.5rem;
      padding:.9rem 1rem;
      outline:none;
      transition:border-color .18s ease, box-shadow .18s ease, transform .18s ease, background .18s ease;
    }
    input:focus, select:focus, textarea:focus{
      border-color:rgba(61,242,255,.7);
      box-shadow:0 0 0 3px rgba(61,242,255,.12);
      background:#13091e;
    }
    textarea{min-height:110px;resize:vertical}
    .soft-border{
      border:1px solid rgba(255,255,255,.10);
      border-radius:var(--radius);
    }
    .step-dot{
      width:.8rem;height:.8rem;border-radius:999px;
      background:linear-gradient(180deg,var(--pink),var(--cyan));
      box-shadow:0 0 0 4px rgba(255,79,216,.12);
      flex:none;
    }
    .note-line{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(61,242,255,.5), rgba(255,79,216,.45), transparent);
    }
    .sticky-shadow{
      box-shadow:0 10px 30px rgba(0,0,0,.28);
    }
    .pill-scroll{
      -webkit-overflow-scrolling: touch;
      scrollbar-width: thin;
    }
    .pill-scroll::-webkit-scrollbar{height:8px}
    .pill-scroll::-webkit-scrollbar-thumb{background:rgba(255,255,255,.15);border-radius:999px}
    .sr-only-focusable:not(:focus):not(:active){
      position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
    }
    @media (max-width: 768px){
      .wrap{width:min(1240px, calc(100% - 1rem))}
    }

/* roulang page: category1 */
:root{
      --bg:#08050d;
      --bg2:#0b0612;
      --panel:#12071f;
      --panel2:#1a0928;
      --line:rgba(255,255,255,.10);
      --line2:rgba(90,224,255,.25);
      --text:#f5f7ff;
      --muted:#9aa3bb;
      --muted2:#74809b;
      --pink:#ff4fd8;
      --pink2:#ff84e8;
      --cyan:#5ae0ff;
      --cyan2:#9df2ff;
      --amber:#f3b84b;
      --shadowPink:0 0 0 1px rgba(255,79,216,.35), 2px 2px 0 rgba(255,79,216,.20), 0 0 24px rgba(255,79,216,.16);
      --shadowCyan:0 0 0 1px rgba(90,224,255,.30), 2px 2px 0 rgba(90,224,255,.16), 0 0 24px rgba(90,224,255,.12);
      --radius:8px;
      --gap:24px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 20% 10%, rgba(255,79,216,.16), transparent 24%),
        radial-gradient(circle at 80% 12%, rgba(90,224,255,.14), transparent 20%),
        radial-gradient(circle at 50% 0%, rgba(255,255,255,.07), transparent 18%),
        linear-gradient(180deg, #0b0612 0%, #08050d 42%, #0a0610 100%);
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    ::selection{background:rgba(255,79,216,.35);color:#fff}
    .wrap{width:min(1240px, calc(100% - 32px)); margin:0 auto;}
    .soft-border{border:1px solid var(--line); border-radius:var(--radius); background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02)); box-shadow:0 12px 30px rgba(0,0,0,.24);}
    .note-line{height:2px; background:linear-gradient(90deg, transparent, rgba(255,79,216,.9), rgba(90,224,255,.9), transparent);}
    .badge{
      display:inline-flex; align-items:center; gap:.45rem;
      padding:.35rem .62rem;
      border:1px solid var(--line);
      border-radius:999px;
      font-size:.78rem;
      line-height:1;
      letter-spacing:.02em;
      background:rgba(255,255,255,.04);
      color:#eef2ff;
      white-space:nowrap;
    }
    .badge-amber{border-color:rgba(243,184,75,.35); background:rgba(243,184,75,.08); color:#ffe3b0}
    .badge-cyan{border-color:rgba(90,224,255,.35); background:rgba(90,224,255,.08); color:#c9f8ff}
    .badge-hot{border-color:rgba(255,79,216,.40); background:rgba(255,79,216,.10); color:#ffd0f4}
    .nav-link{
      position:relative;
      color:#d4dbef;
      transition:transform .18s ease, color .18s ease, text-shadow .18s ease;
    }
    .nav-link:hover{color:#fff; transform:translateY(-1px)}
    .nav-link.active{
      color:#fff;
      text-shadow:0 0 12px rgba(255,79,216,.35);
    }
    .nav-link.active::after{
      content:"";
      position:absolute;
      left:0; right:0; bottom:-12px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg, var(--pink), var(--cyan));
      box-shadow:0 0 12px rgba(255,79,216,.45);
    }
    .btn-neon{
      display:inline-flex; align-items:center; justify-content:center; gap:.55rem;
      min-height:44px;
      padding:.78rem 1.08rem;
      border-radius:8px;
      border:1px solid rgba(255,79,216,.55);
      background:linear-gradient(180deg, rgba(255,79,216,.18), rgba(255,79,216,.10));
      color:#fff;
      box-shadow:var(--shadowPink);
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
    }
    .btn-neon:hover{transform:translateY(-2px); border-color:rgba(255,132,232,.75); box-shadow:0 0 0 1px rgba(255,79,216,.42), 3px 3px 0 rgba(255,79,216,.22), 0 0 30px rgba(255,79,216,.24)}
    .btn-neon:focus,.btn-ghost:focus,.nav-link:focus,.filter-chip:focus,.accordion-btn:focus{outline:none; box-shadow:0 0 0 2px rgba(90,224,255,.35), 0 0 0 4px rgba(90,224,255,.12)}
    .btn-ghost{
      display:inline-flex; align-items:center; justify-content:center; gap:.55rem;
      min-height:44px;
      padding:.78rem 1.08rem;
      border-radius:8px;
      border:1px solid rgba(90,224,255,.38);
      background:rgba(255,255,255,.03);
      color:#ecfbff;
      transition:transform .18s ease, border-color .18s ease, box-shadow .18s ease, background .18s ease;
    }
    .btn-ghost:hover{transform:translateY(-2px); border-color:rgba(90,224,255,.65); box-shadow:var(--shadowCyan); background:rgba(90,224,255,.06)}
    .hero-grid{
      background:
        radial-gradient(circle at 28% 18%, rgba(255,79,216,.14), transparent 28%),
        radial-gradient(circle at 78% 22%, rgba(90,224,255,.14), transparent 22%),
        linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
      position:relative;
      overflow:hidden;
    }
    .hero-grid::before{
      content:"";
      position:absolute; inset:0;
      background:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size:24px 24px;
      opacity:.22;
      pointer-events:none;
      mix-blend-mode:screen;
    }
    .hero-grid::after{
      content:"";
      position:absolute; inset:-10% -10% auto;
      height:120px;
      background:linear-gradient(90deg, transparent, rgba(90,224,255,.18), rgba(255,79,216,.18), transparent);
      filter:blur(12px);
      opacity:.85;
      pointer-events:none;
    }
    .pixel-card{
      position:relative;
      border:1px solid var(--line);
      border-radius:8px;
      background:linear-gradient(180deg, rgba(18,7,31,.96), rgba(10,6,16,.96));
      box-shadow:0 10px 24px rgba(0,0,0,.30);
      overflow:hidden;
    }
    .pixel-card::before{
      content:"";
      position:absolute; inset:0;
      background:
        linear-gradient(135deg, rgba(255,255,255,.04) 25%, transparent 25%) -6px -6px/12px 12px,
        linear-gradient(225deg, rgba(255,255,255,.035) 25%, transparent 25%) -6px -6px/12px 12px;
      opacity:.16;
      pointer-events:none;
    }
    .pixel-card:hover{border-color:rgba(255,79,216,.35); box-shadow:0 0 0 1px rgba(255,79,216,.25), 0 16px 36px rgba(0,0,0,.34)}
    .panel-title{letter-spacing:.01em; text-shadow:0 0 18px rgba(255,79,216,.16)}
    .mono{font-variant-numeric:tabular-nums; letter-spacing:.02em}
    .meter{
      height:10px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
    }
    .meter > span{
      display:block; height:100%;
      background:linear-gradient(90deg, var(--pink), var(--cyan));
      box-shadow:0 0 16px rgba(255,79,216,.25);
    }
    .filter-chip{
      display:inline-flex; align-items:center; gap:.45rem;
      min-height:40px;
      padding:.55rem .82rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.03);
      color:#d7def2;
      transition:transform .18s ease, border-color .18s ease, box-shadow .18s ease, background .18s ease;
      white-space:nowrap;
    }
    .filter-chip:hover{transform:translateY(-1px); border-color:rgba(90,224,255,.40); box-shadow:0 0 0 1px rgba(90,224,255,.20), 0 0 18px rgba(90,224,255,.12)}
    .filter-chip.active{
      border-color:rgba(255,79,216,.55);
      background:rgba(255,79,216,.10);
      color:#fff;
      box-shadow:0 0 0 1px rgba(255,79,216,.28), 0 0 18px rgba(255,79,216,.12);
    }
    .kicker{
      display:inline-flex; align-items:center; gap:.45rem;
      color:#ffd8f6;
      letter-spacing:.12em;
      font-size:.72rem;
      text-transform:uppercase;
    }
    .kicker::before{
      content:"◼";
      color:var(--cyan2);
      text-shadow:0 0 10px rgba(90,224,255,.42);
    }
    .accordion-item{border-top:1px solid rgba(255,255,255,.08)}
    .accordion-btn{
      width:100%;
      display:flex; align-items:center; justify-content:space-between; gap:1rem;
      padding:1rem 0;
      background:transparent;
      color:#fff;
      border:0;
      cursor:pointer;
      text-align:left;
    }
    .accordion-panel{display:none; padding:0 0 1rem; color:#b7c0d8}
    .accordion-item.open .accordion-panel{display:block}
    .accordion-item.open .accordion-btn{color:#fff}
    .accordion-item.open .chev{transform:rotate(180deg)}
    .chev{transition:transform .18s ease}
    .table-wrap{overflow:auto}
    .compare-table{
      width:100%;
      min-width:720px;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
    }
    .compare-table th, .compare-table td{
      padding:1rem;
      border-bottom:1px solid rgba(255,255,255,.08);
      vertical-align:top;
    }
    .compare-table th{
      color:#eef2ff;
      text-align:left;
      background:rgba(255,255,255,.03);
      font-weight:700;
    }
    .compare-table tr:last-child td{border-bottom:0}
    .status-dot{
      width:.55rem; height:.55rem; border-radius:999px;
      background:var(--cyan);
      box-shadow:0 0 10px rgba(90,224,255,.55);
      display:inline-block;
    }
    .menu-panel{
      display:none;
      border-top:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(11,6,18,.98), rgba(10,5,13,.98));
    }
    .menu-panel.open{display:block}
    .field{
      width:100%;
      min-height:44px;
      padding:.78rem .9rem;
      border-radius:8px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.03);
      color:#fff;
      outline:none;
      transition:border-color .18s ease, box-shadow .18s ease, background .18s ease;
    }
    .field:focus{
      border-color:rgba(90,224,255,.46);
      box-shadow:0 0 0 2px rgba(90,224,255,.14);
      background:rgba(90,224,255,.04);
    }
    .muted{color:var(--muted)}
    .fine{color:var(--muted2)}
    .pixel-divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.10), transparent);
    }
    .scanlines{
      pointer-events:none;
      position:fixed; inset:0;
      background:linear-gradient(rgba(255,255,255,.02) 50%, transparent 50%);
      background-size:100% 4px;
      opacity:.12;
      mix-blend-mode:soft-light;
      z-index:1;
    }
    .content-layer{position:relative; z-index:2}
    @media (max-width: 767px){
      .wrap{width:min(100% - 20px, 1240px)}
      .nav-desktop{display:none !important}
      .mobile-shell{display:block}
      .hero-grid::before{background-size:18px 18px}
    }