/* roulang page: index */
:root{
      --bg:#050816;
      --bg-soft:#0b1020;
      --panel:rgba(12,18,35,.76);
      --panel-strong:rgba(12,18,35,.92);
      --line:rgba(148,163,184,.16);
      --line-strong:rgba(148,163,184,.28);
      --text:#e6eefc;
      --muted:#9aa8c2;
      --brand:#22d3ee;
      --brand-2:#8b5cf6;
      --brand-3:#f59e0b;
      --good:#34d399;
      --shadow:0 26px 80px rgba(0,0,0,.42);
      --radius:24px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(34,211,238,.14), transparent 32%),
        radial-gradient(circle at top right, rgba(139,92,246,.18), transparent 28%),
        radial-gradient(circle at 50% 110%, rgba(245,158,11,.10), transparent 30%),
        linear-gradient(180deg, #040712 0%, #070b18 28%, #050816 100%);
      font-family: Inter, "PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
      line-height:1.7;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    ::selection{background:rgba(34,211,238,.26);color:#fff}
    .no-scrollbar::-webkit-scrollbar{width:0;height:0}
    .no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
    .site-header{
      background:rgba(4,8,18,.72);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
      box-shadow:0 6px 30px rgba(0,0,0,.16);
    }
    .brand-mark{
      width:2.75rem;height:2.75rem;
      border-radius:18px;
      background:linear-gradient(145deg, rgba(34,211,238,.28), rgba(139,92,246,.24));
      border:1px solid rgba(255,255,255,.12);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.18);
    }
    .section-shell{
      position:relative;
      isolation:isolate;
    }
    .section-shell::before{
      content:"";
      position:absolute;
      inset:auto 10% -35% 10%;
      height:18rem;
      background:radial-gradient(circle, rgba(34,211,238,.12), transparent 66%);
      z-index:-1;
      pointer-events:none;
    }
    .glass{
      background:linear-gradient(180deg, rgba(15,23,42,.78), rgba(10,16,32,.88));
      border:1px solid rgba(148,163,184,.16);
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
    }
    .soft-border{border:1px solid var(--line)}
    .soft-border-strong{border:1px solid var(--line-strong)}
    .section-label{
      display:inline-flex;
      align-items:center;
      gap:.5rem;
      padding:.4rem .8rem;
      border-radius:999px;
      background:rgba(34,211,238,.08);
      color:#bdf7ff;
      border:1px solid rgba(34,211,238,.18);
      letter-spacing:.02em;
      font-size:.92rem;
    }
    .section-title{
      font-size:clamp(2rem,4vw,3.6rem);
      line-height:1.08;
      letter-spacing:-0.035em;
      font-weight:800;
    }
    .section-copy{
      color:var(--muted);
      max-width:68ch;
    }
    .panel{
      background:rgba(11,16,32,.82);
      border:1px solid rgba(148,163,184,.14);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.58rem .95rem;
      border-radius:999px;
      border:1px solid rgba(148,163,184,.18);
      background:rgba(255,255,255,.04);
      color:#d6e3fb;
      transition:transform .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease;
      white-space:nowrap;
    }
    .chip:hover{
      transform:translateY(-1px);
      background:rgba(255,255,255,.07);
      border-color:rgba(34,211,238,.34);
      box-shadow:0 12px 28px rgba(2,8,23,.34);
    }
    .chip.active{
      background:linear-gradient(135deg, rgba(34,211,238,.18), rgba(139,92,246,.18));
      border-color:rgba(34,211,238,.38);
      color:#fff;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.55rem;
      min-height:3rem;
      padding:.8rem 1.15rem;
      border-radius:16px;
      border:1px solid transparent;
      font-weight:700;
      letter-spacing:.01em;
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease, color .22s ease;
      cursor:pointer;
      user-select:none;
    }
    .btn:focus-visible,
    .chip:focus-visible,
    a:focus-visible,
    button:focus-visible,
    summary:focus-visible,
    input:focus-visible,
    select:focus-visible{
      outline:none;
      box-shadow:0 0 0 3px rgba(34,211,238,.22), 0 0 0 1px rgba(34,211,238,.5);
    }
    .btn-primary{
      background:linear-gradient(135deg, rgba(34,211,238,1), rgba(139,92,246,1));
      color:#fff;
      box-shadow:0 18px 30px rgba(34,211,238,.18);
    }
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 20px 34px rgba(139,92,246,.22)}
    .btn-soft{
      background:rgba(255,255,255,.05);
      color:#eaf2ff;
      border-color:rgba(148,163,184,.16);
    }
    .btn-soft:hover{
      transform:translateY(-1px);
      background:rgba(255,255,255,.08);
      border-color:rgba(34,211,238,.24);
    }
    .btn-ghost{
      background:transparent;
      border-color:rgba(148,163,184,.18);
      color:#d8e4fb;
    }
    .btn-ghost:hover{
      border-color:rgba(245,158,11,.3);
      background:rgba(245,158,11,.08);
    }
    .stat-tile{
      background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
      border:1px solid rgba(148,163,184,.14);
      border-radius:22px;
      padding:1rem 1.1rem;
    }
    .rank-item{
      background:rgba(255,255,255,.04);
      border:1px solid rgba(148,163,184,.12);
      border-radius:18px;
      padding:1rem;
      transition:transform .22s ease, border-color .22s ease, background .22s ease;
    }
    .rank-item:hover{
      transform:translateY(-2px);
      background:rgba(255,255,255,.06);
      border-color:rgba(34,211,238,.24);
    }
    .progress{
      height:.55rem;
      background:rgba(148,163,184,.14);
      border-radius:999px;
      overflow:hidden;
    }
    .progress > span{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg, rgba(34,211,238,1), rgba(139,92,246,1));
    }
    .ticker{
      overflow:hidden;
      mask-image:linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
      -webkit-mask-image:linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    }
    .ticker-track{
      display:flex;
      width:max-content;
      gap:.9rem;
      animation:scroll-left 32s linear infinite;
    }
    @keyframes scroll-left{
      from{transform:translateX(0)}
      to{transform:translateX(-50%)}
    }
    .poster-card{
      position:relative;
      overflow:hidden;
      border-radius:28px;
      border:1px solid rgba(148,163,184,.16);
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      box-shadow:var(--shadow);
      transition:transform .24s ease, border-color .24s ease, box-shadow .24s ease;
    }
    .poster-card:hover{
      transform:translateY(-4px);
      border-color:rgba(34,211,238,.28);
      box-shadow:0 28px 60px rgba(2,8,23,.5);
    }
    .poster-top{
      min-height:15rem;
      background:
        radial-gradient(circle at top right, rgba(34,211,238,.35), transparent 30%),
        radial-gradient(circle at 20% 25%, rgba(245,158,11,.18), transparent 26%),
        linear-gradient(135deg, rgba(15,23,42,.95), rgba(23,37,84,.82));
    }
    .poster-tag{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.34rem .68rem;
      border-radius:999px;
      font-size:.78rem;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.08);
      color:#fff;
    }
    .bubble-card{
      position:relative;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(148,163,184,.14);
      border-radius:24px;
      padding:1rem 1rem 1rem 1rem;
      box-shadow:0 16px 34px rgba(0,0,0,.2);
    }
    .bubble-card::after{
      content:"";
      position:absolute;
      left:1.15rem;
      bottom:-10px;
      width:18px;
      height:18px;
      transform:rotate(45deg);
      background:inherit;
      border-right:1px solid rgba(148,163,184,.14);
      border-bottom:1px solid rgba(148,163,184,.14);
    }
    .faq-item{
      background:rgba(255,255,255,.04);
      border:1px solid rgba(148,163,184,.14);
      border-radius:22px;
      overflow:hidden;
      transition:border-color .22s ease, background .22s ease;
    }
    .faq-item[open]{
      background:rgba(255,255,255,.06);
      border-color:rgba(34,211,238,.26);
    }
    .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;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item .faq-body{
      padding:0 1.1rem 1rem 1.1rem;
      color:var(--muted);
    }
    .field{
      width:100%;
      background:rgba(7,12,24,.9);
      border:1px solid rgba(148,163,184,.18);
      color:#eff6ff;
      border-radius:16px;
      padding:.92rem 1rem;
      transition:border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }
    .field::placeholder{color:#73829d}
    .field:focus{
      background:rgba(8,14,28,.98);
      border-color:rgba(34,211,238,.4);
    }
    .footer{
      border-top:1px solid var(--line);
      background:linear-gradient(180deg, rgba(5,8,22,.4), rgba(2,6,18,.82));
    }
    .drawer{
      opacity:0;
      pointer-events:none;
      transition:opacity .28s ease;
    }
    .drawer.is-open{
      opacity:1;
      pointer-events:auto;
    }
    .drawer-panel{
      transform:translateX(102%);
      transition:transform .34s cubic-bezier(.16,1,.3,1);
    }
    .drawer.is-open .drawer-panel{
      transform:translateX(0);
    }
    .drawer-overlay{
      background:rgba(2,6,23,.72);
      backdrop-filter:blur(12px);
    }
    .mini-pill{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.32rem .55rem;
      border-radius:999px;
      font-size:.78rem;
      color:#dbeafe;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(148,163,184,.12);
    }
    .countdown-box{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:.6rem;
    }
    .time-box{
      text-align:center;
      border-radius:18px;
      padding:.75rem .35rem;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(148,163,184,.14);
    }
    .time-box strong{
      display:block;
      font-size:1.5rem;
      line-height:1.1;
      letter-spacing:-.03em;
    }
    .time-box span{
      display:block;
      color:var(--muted);
      font-size:.8rem;
      margin-top:.25rem;
    }
    .hero-grid{
      position:relative;
      overflow:hidden;
      border-radius:36px;
      border:1px solid rgba(148,163,184,.14);
      background:
        radial-gradient(circle at 20% 20%, rgba(34,211,238,.14), transparent 24%),
        radial-gradient(circle at 84% 18%, rgba(139,92,246,.18), transparent 22%),
        linear-gradient(180deg, rgba(7,11,24,.96), rgba(9,14,31,.92));
      box-shadow:0 40px 100px rgba(0,0,0,.52);
    }
    .hero-grid::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(120deg, transparent 0%, rgba(255,255,255,.02) 30%, transparent 60%);
      pointer-events:none;
    }
    .hero-grid::after{
      content:"";
      position:absolute;
      inset:auto -12% -22% auto;
      width:26rem;
      height:26rem;
      border-radius:50%;
      background:radial-gradient(circle, rgba(34,211,238,.16), transparent 68%);
      filter:blur(8px);
      pointer-events:none;
    }
    .toast{
      position:fixed;
      right:1rem;
      bottom:1rem;
      z-index:70;
      transform:translateY(20px);
      opacity:0;
      pointer-events:none;
      transition:all .28s ease;
    }
    .toast.show{
      transform:translateY(0);
      opacity:1;
      pointer-events:auto;
    }
    @media (max-width: 1024px){
      .hero-grid{border-radius:28px}
    }
    @media (max-width: 768px){
      .section-title{font-size:clamp(1.7rem,8vw,2.4rem)}
      .countdown-box{grid-template-columns:repeat(2,minmax(0,1fr))}
      .drawer-panel{max-width:100%}
    }
    @media (max-width: 520px){
      .brand-mark{width:2.25rem;height:2.25rem;border-radius:16px}
      .time-box strong{font-size:1.22rem}
      .poster-top{min-height:12rem}
    }