/* roulang page: index */
:root{
      --brand:#6d5dfc;
      --brand-2:#11c7d9;
      --brand-3:#ff7a90;
      --ink:#12152b;
      --muted:#64708a;
      --soft:#f5f7ff;
      --card:#ffffff;
      --line:rgba(109,93,252,.16);
      --line-strong:rgba(18,21,43,.12);
      --shadow:0 22px 60px rgba(27,35,80,.12);
      --shadow-sm:0 12px 30px rgba(27,35,80,.08);
      --radius:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 8%, rgba(109,93,252,.16), transparent 32%),
        radial-gradient(circle at 88% 4%, rgba(17,199,217,.16), transparent 30%),
        linear-gradient(180deg,#fbfcff 0%,#f4f7ff 48%,#ffffff 100%);
      line-height:1.72;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(109,93,252,.2)}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .skip-link{
      position:absolute;left:-999px;top:14px;z-index:99;
      background:var(--ink);color:#fff;padding:10px 14px;border-radius:12px
    }
    .skip-link:focus{left:16px}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(255,255,255,.78);
      backdrop-filter:saturate(160%) blur(18px);
      border-bottom:1px solid rgba(109,93,252,.12);
    }
    .nav-wrap{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:0;font-weight:900;
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;color:white;font-weight:900;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 12px 28px rgba(109,93,252,.28);
      flex:0 0 auto;
    }
    .brand-name{
      max-width:310px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      font-size:17px;
    }
    .desktop-nav{display:flex;align-items:center;gap:10px;flex:1;justify-content:center}
    .nav-link{
      padding:10px 14px;border-radius:999px;font-size:14px;font-weight:800;color:#303954;
      transition:.22s ease;
    }
    .nav-link:hover,.nav-link.active{
      color:var(--brand);
      background:rgba(109,93,252,.09);
    }
    .stage-chips{
      display:flex;gap:8px;align-items:center;padding:4px;border:1px solid var(--line);
      border-radius:999px;background:rgba(255,255,255,.66);
      box-shadow:0 8px 24px rgba(27,35,80,.05);
    }
    .stage-chip{
      font-size:12px;font-weight:900;padding:6px 10px;border-radius:999px;color:#67718b;
      display:inline-flex;align-items:center;gap:6px;
    }
    .stage-chip::before{
      content:"";width:7px;height:7px;border-radius:50%;background:#c7cce0;
    }
    .stage-chip.live{color:#0f9b9d;background:rgba(17,199,217,.11)}
    .stage-chip.live::before{background:#16c7c8;box-shadow:0 0 0 5px rgba(17,199,217,.14)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .search-box{
      height:42px;display:flex;align-items:center;gap:8px;
      border:1px solid var(--line);background:#fff;border-radius:999px;padding:0 12px;
      box-shadow:0 8px 24px rgba(27,35,80,.05);
    }
    .search-box input{
      width:132px;border:0;outline:0;background:transparent;color:var(--ink);
      font-size:13px;
    }
    .search-box:focus-within{border-color:rgba(109,93,252,.45);box-shadow:0 0 0 4px rgba(109,93,252,.1)}
    .mobile-toggle{
      display:none;width:42px;height:42px;border:0;border-radius:14px;
      background:rgba(109,93,252,.1);color:var(--brand);cursor:pointer;
    }
    .mobile-panel{
      display:none;border-top:1px solid var(--line);padding:12px 0 18px;
    }
    .mobile-panel.open{display:block}
    .mobile-panel .nav-link{display:block;margin:6px 0}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:46px;padding:0 18px;border-radius:999px;
      font-weight:900;font-size:14px;border:1px solid transparent;cursor:pointer;
      transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease;
      outline:none;
    }
    .btn:focus-visible{box-shadow:0 0 0 4px rgba(109,93,252,.18)}
    .btn-primary{
      color:white;background:linear-gradient(135deg,var(--brand),#8c62ff 48%,var(--brand-2));
      box-shadow:0 14px 30px rgba(109,93,252,.25);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(109,93,252,.32)}
    .btn-ghost{
      color:var(--brand);background:rgba(255,255,255,.82);border-color:rgba(109,93,252,.2);
    }
    .btn-ghost:hover{background:#fff;transform:translateY(-2px);box-shadow:var(--shadow-sm)}
    .section{padding:82px 0}
    .section-tight{padding:54px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      background:rgba(109,93,252,.1);
      color:var(--brand);
      font-weight:900;font-size:13px;
      border:1px solid rgba(109,93,252,.14);
    }
    .section-title{
      margin:14px 0 12px;
      font-size:clamp(28px,4vw,46px);
      line-height:1.15;
      letter-spacing:-.04em;
      font-weight:950;
    }
    .section-desc{
      color:var(--muted);
      max-width:760px;
      font-size:16px;
      margin:0;
    }
    .hero{
      padding:74px 0 62px;
      position:relative;
    }
    .hero-card{
      border:1px solid rgba(109,93,252,.18);
      border-radius:36px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.92),rgba(255,255,255,.74)),
        radial-gradient(circle at 78% 18%,rgba(17,199,217,.16),transparent 24%);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-card::after{
      content:"";position:absolute;inset:auto -120px -180px auto;width:460px;height:460px;border-radius:50%;
      background:radial-gradient(circle,rgba(255,122,144,.22),transparent 68%);
      pointer-events:none;
    }
    .hero-inner{padding:42px;position:relative;z-index:1}
    .status-row{
      display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:28px;
      padding:12px;border-radius:22px;background:rgba(255,255,255,.82);border:1px solid var(--line);
    }
    .status-bar{
      flex:1;height:12px;border-radius:999px;background:#edf0fb;overflow:hidden;
      min-width:160px;
    }
    .status-fill{
      width:68%;height:100%;border-radius:inherit;
      background:linear-gradient(90deg,var(--brand),var(--brand-2));
      box-shadow:0 0 18px rgba(17,199,217,.35);
    }
    .status-text{font-size:13px;font-weight:900;color:#41506e;white-space:nowrap}
    .icon-matrix{
      display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin-bottom:30px;
    }
    .matrix-item{
      min-height:76px;border-radius:22px;border:1px solid rgba(109,93,252,.14);
      background:linear-gradient(180deg,#fff,rgba(245,247,255,.9));
      display:flex;flex-direction:column;align-items:center;justify-content:center;
      gap:7px;box-shadow:0 10px 26px rgba(27,35,80,.06);
      transition:.24s ease;
    }
    .matrix-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:rgba(109,93,252,.34)}
    .matrix-icon{font-size:24px}
    .matrix-label{font-size:12px;font-weight:900;color:#5e6881}
    h1{
      max-width:900px;
      margin:0;
      font-size:clamp(34px,6vw,68px);
      line-height:1.05;
      letter-spacing:-.06em;
      font-weight:950;
    }
    .hero-lead{
      max-width:820px;
      margin:20px 0 0;
      font-size:18px;
      color:#4d5874;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .hero-metrics{
      display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px;
    }
    .metric{
      border:1px solid var(--line);background:rgba(255,255,255,.78);border-radius:24px;padding:18px;
    }
    .metric strong{display:block;font-size:30px;line-height:1;font-weight:950;letter-spacing:-.04em;color:var(--brand)}
    .metric span{display:block;margin-top:8px;color:var(--muted);font-size:13px;font-weight:800}
    .grid-2{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:start}
    .play-panel,.reward-panel,.progress-panel,.safety-panel,.device-stage,.news-panel,.seed-card,.cta-panel{
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:rgba(255,255,255,.86);
      box-shadow:var(--shadow-sm);
    }
    .play-list{display:grid;gap:14px}
    .play-item{
      padding:20px;border-radius:22px;background:#fff;border:1px solid rgba(18,21,43,.08);
      display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;
      transition:.22s ease;
    }
    .play-item:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(27,35,80,.08)}
    .step-no{
      width:38px;height:38px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:950;
    }
    .play-item h3,.reward-card h3,.progress-card h3,.safety-item h3,.seed-card h3{margin:0 0 6px;font-weight:950;font-size:18px}
    .play-item p,.reward-card p,.progress-card p,.safety-item p,.seed-card p{margin:0;color:var(--muted);font-size:14px}
    .round-board{
      padding:24px;border-radius:var(--radius);background:linear-gradient(135deg,#151936,#27316a);
      color:#fff;position:relative;overflow:hidden;
    }
    .round-board::before{
      content:"";position:absolute;inset:-80px -120px auto auto;width:280px;height:280px;border-radius:50%;
      background:rgba(17,199,217,.22);
    }
    .rank-row{
      position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;
      padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12);
    }
    .rank-row:last-child{border-bottom:0}
    .rank-row b{font-size:15px}
    .rank-score{font-weight:950;color:#8df3ff}
    .reward-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;margin-top:28px}
    .reward-card{
      padding:24px;border-radius:var(--radius);background:#fff;border:1px solid rgba(18,21,43,.08);
      min-height:190px;position:relative;overflow:hidden;transition:.24s ease;
    }
    .reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
    .reward-card.featured{
      background:linear-gradient(135deg,var(--brand),#8a5eff);
      color:#fff;
    }
    .reward-card.featured p{color:rgba(255,255,255,.82)}
    .reward-badge{
      display:inline-flex;padding:6px 10px;border-radius:999px;background:rgba(17,199,217,.12);
      color:#0797a0;font-weight:950;font-size:12px;margin-bottom:18px;
    }
    .reward-card.featured .reward-badge{background:rgba(255,255,255,.18);color:#fff}
    .reward-value{
      position:absolute;right:18px;bottom:14px;font-size:44px;font-weight:950;letter-spacing:-.06em;
      color:rgba(109,93,252,.12);
    }
    .reward-card.featured .reward-value{color:rgba(255,255,255,.16)}
    .progress-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:24px;margin-top:28px}
    .progress-panel{padding:24px}
    .progress-card{
      padding:18px;border-radius:20px;background:#fff;border:1px solid rgba(18,21,43,.08);
      margin-bottom:14px;
    }
    .progress-card:last-child{margin-bottom:0}
    .progress-line{position:relative;padding-left:28px}
    .progress-line::before{
      content:"";position:absolute;left:9px;top:10px;bottom:10px;width:2px;background:linear-gradient(var(--brand),var(--brand-2));
    }
    .milestone{position:relative;margin-bottom:24px;padding:18px 18px 18px 22px;border-radius:22px;background:#fff;border:1px solid rgba(18,21,43,.08)}
    .milestone:last-child{margin-bottom:0}
    .milestone::before{
      content:"";position:absolute;left:-25px;top:24px;width:14px;height:14px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 0 6px rgba(17,199,217,.14);
    }
    .milestone h3{margin:0 0 5px;font-size:17px;font-weight:950}
    .milestone p{margin:0;color:var(--muted);font-size:14px}
    .device-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:28px}
    .device-stage{padding:24px;background:linear-gradient(180deg,#fff,rgba(245,247,255,.82))}
    .browser-top{display:flex;gap:7px;margin-bottom:18px}
    .dot{width:10px;height:10px;border-radius:50%;background:#d8deef}
    .dot:nth-child(1){background:#ff7a90}.dot:nth-child(2){background:#ffd166}.dot:nth-child(3){background:#11c7d9}
    .screen{
      border-radius:22px;border:1px solid rgba(109,93,252,.16);background:#fff;padding:18px;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.4);
    }
    .screen-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px;border-radius:16px;background:#f7f8ff;margin-bottom:10px}
    .screen-row:last-child{margin-bottom:0}
    .screen-row span{font-size:13px;font-weight:850;color:#4c5874}
    .pill{display:inline-flex;align-items:center;border-radius:999px;padding:5px 9px;background:rgba(109,93,252,.1);color:var(--brand);font-size:12px;font-weight:950}
    .safety-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}
    .safety-item{
      padding:22px;border-radius:24px;background:#fff;border:1px solid rgba(18,21,43,.08);
      transition:.22s ease;
    }
    .safety-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}
    .safety-icon{
      width:44px;height:44px;border-radius:16px;display:grid;place-items:center;margin-bottom:14px;
      background:rgba(109,93,252,.1);font-size:22px;
    }
    .news-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;margin-top:28px}
    .news-panel{padding:24px}
    .news-list{display:grid;gap:12px}
    .news-link{
      display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;
      padding:16px;border-radius:18px;background:#fff;border:1px solid rgba(18,21,43,.08);
      transition:.22s ease;
    }
    .news-link:hover{transform:translateX(4px);border-color:rgba(109,93,252,.28);box-shadow:0 12px 26px rgba(27,35,80,.07)}
    .news-date{
      width:54px;height:54px;border-radius:18px;display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(109,93,252,.12),rgba(17,199,217,.12));
      color:var(--brand);font-weight:950;font-size:13px;text-align:center;line-height:1.15;
    }
    .news-link h3{margin:0;font-size:16px;font-weight:950}
    .news-link p{margin:3px 0 0;color:var(--muted);font-size:13px}
    .arrow{color:var(--brand);font-weight:950}
    .recommend-box{
      padding:24px;border-radius:var(--radius);background:linear-gradient(135deg,#151936,#29336e);
      color:#fff;min-height:100%;
    }
    .recommend-box p{color:rgba(255,255,255,.75)}
    .recommend-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
    .recommend-tags span{font-size:12px;font-weight:900;padding:7px 10px;border-radius:999px;background:rgba(255,255,255,.12)}
    .seed-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}
    .seed-card{overflow:hidden;transition:.24s ease}
    .seed-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .seed-cover{
      height:180px;background:
      radial-gradient(circle at 32% 20%,rgba(255,255,255,.32),transparent 24%),
      linear-gradient(135deg,var(--brand),var(--brand-2));
      display:flex;align-items:flex-end;padding:18px;color:#fff;font-size:38px;font-weight:950;
      letter-spacing:-.06em;
    }
    .seed-body{padding:18px}
    .seed-card .btn{margin-top:14px;min-height:38px;padding:0 14px;font-size:13px}
    .faq-wrap{margin-top:28px;display:grid;gap:12px}
    details{
      border:1px solid rgba(18,21,43,.08);background:#fff;border-radius:22px;padding:0 20px;
      box-shadow:0 8px 20px rgba(27,35,80,.04);
    }
    summary{
      list-style:none;cursor:pointer;padding:18px 0;font-weight:950;display:flex;justify-content:space-between;gap:18px;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{content:"＋";color:var(--brand);font-weight:950}
    details[open] summary::after{content:"－"}
    details p{margin:0;padding:0 0 18px;color:var(--muted);font-size:14px}
    .cta-panel{
      padding:34px;
      background:
        linear-gradient(135deg,rgba(109,93,252,.96),rgba(17,199,217,.88)),
        radial-gradient(circle at 80% 20%,rgba(255,255,255,.25),transparent 30%);
      color:#fff;
      display:grid;grid-template-columns:1fr .9fr;gap:28px;align-items:center;
      overflow:hidden;position:relative;
    }
    .cta-panel h2{margin:0 0 12px;font-size:clamp(28px,4vw,46px);font-weight:950;line-height:1.14;letter-spacing:-.04em}
    .cta-panel p{margin:0;color:rgba(255,255,255,.82)}
    .mini-form{
      padding:20px;border-radius:24px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.24);
      backdrop-filter:blur(8px);
    }
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
    .mini-form input{
      width:100%;height:46px;border:1px solid rgba(255,255,255,.28);border-radius:16px;
      background:rgba(255,255,255,.9);padding:0 14px;outline:none;color:var(--ink);
    }
    .mini-form input:focus{border-color:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.18)}
    .mini-form .btn{width:100%;background:#fff;color:var(--brand);margin-top:8px}
    .form-note{font-size:12px!important;margin-top:10px!important;color:rgba(255,255,255,.72)!important}
    .site-footer{
      background:#11152d;color:#d9def0;padding:46px 0 26px;margin-top:40px;
    }
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:28px}
    .footer-brand{font-size:18px;font-weight:950;color:#fff;margin-bottom:10px}
    .footer-text{color:#aab3cc;margin:0;max-width:560px;font-size:14px}
    .footer-title{color:#fff;font-weight:950;margin-bottom:10px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#aab3cc;font-size:14px;transition:.2s ease}
    .footer-links a:hover{color:#fff;transform:translateX(2px)}
    .copyright{
      border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:18px;
      color:#8993b2;font-size:13px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
    }
    @media (max-width:1024px){
      .search-box{display:none}
      .icon-matrix{grid-template-columns:repeat(3,1fr)}
      .grid-2,.progress-layout,.news-layout,.cta-panel{grid-template-columns:1fr}
      .reward-grid{grid-template-columns:1fr 1fr}
      .safety-grid,.seed-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav-wrap{height:68px}
      .desktop-nav,.nav-actions .btn{display:none}
      .mobile-toggle{display:grid;place-items:center}
      .brand-name{max-width:210px;font-size:15px}
      .hero{padding:36px 0 44px}
      .hero-inner{padding:24px}
      .status-row{align-items:flex-start;flex-direction:column}
      .status-bar{width:100%}
      .hero-metrics,.device-grid,.reward-grid{grid-template-columns:1fr}
      .section{padding:58px 0}
      .section-tight{padding:38px 0}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .icon-matrix{grid-template-columns:repeat(2,1fr)}
      .matrix-item{min-height:68px}
      .hero-actions{display:grid}
      .btn{width:100%}
      .safety-grid,.seed-grid{grid-template-columns:1fr}
      .news-link{grid-template-columns:auto 1fr}
      .news-link .arrow{display:none}
      .form-row{grid-template-columns:1fr}
      .cta-panel{padding:24px}
      .stage-chips{overflow-x:auto;max-width:100%;justify-content:flex-start}
      .stage-chip{white-space:nowrap}
    }