/* roulang page: index */
:root{
      --brand:#7c3aed;
      --brand-2:#ec4899;
      --brand-3:#06b6d4;
      --ink:#101828;
      --muted:#667085;
      --soft:#f7f5ff;
      --soft-2:#fff7ed;
      --surface:#ffffff;
      --line:#e6e8ef;
      --line-strong:#d5d9e5;
      --dark:#111827;
      --dark-2:#1f2937;
      --success:#12b76a;
      --warning:#f59e0b;
      --danger:#ef4444;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow-sm:0 8px 24px rgba(16,24,40,.08);
      --shadow:0 18px 55px rgba(16,24,40,.12);
      --shadow-lg:0 28px 80px rgba(124,58,237,.20);
      --container:1180px;
      --nav-h:72px;
      --ease:all .24s ease;
    }

    *{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 8% 3%, rgba(124,58,237,.14), transparent 28%),
        radial-gradient(circle at 92% 8%, rgba(236,72,153,.12), transparent 30%),
        linear-gradient(180deg,#fbfbff 0%,#fff 42%,#fafafa 100%);
      line-height:1.72;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--brand)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    ::selection{background:rgba(124,58,237,.18);color:var(--ink)}
    :focus-visible{
      outline:3px solid rgba(124,58,237,.28);
      outline-offset:3px;
      border-radius:10px;
    }

    .container-xxl-custom{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .section{
      padding:82px 0;
      position:relative;
    }
    .section-tight{padding:58px 0}
    .section-title{
      font-size:clamp(28px,3.2vw,44px);
      letter-spacing:-.04em;
      line-height:1.18;
      font-weight:850;
      margin:0 0 16px;
    }
    .section-copy{
      color:var(--muted);
      font-size:17px;
      max-width:760px;
      margin:0;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(124,58,237,.18);
      background:rgba(124,58,237,.08);
      color:#5b21b6;
      border-radius:999px;
      font-size:13px;
      font-weight:800;
      margin-bottom:14px;
    }
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border-radius:999px;
      padding:7px 11px;
      font-size:13px;
      font-weight:750;
      color:#5b21b6;
      background:#f2eaff;
      border:1px solid rgba(124,58,237,.14);
      white-space:nowrap;
    }
    .badge-hot{
      color:#b42318;
      background:#fff1f0;
      border-color:#ffd3cf;
    }
    .badge-cyan{
      color:#0e7490;
      background:#ecfeff;
      border-color:#bae6fd;
    }
    .btn-brand{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border:0;
      border-radius:999px;
      padding:13px 22px;
      font-weight:850;
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 12px 28px rgba(124,58,237,.24);
      transition:var(--ease);
      min-height:48px;
    }
    .btn-brand:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 18px 38px rgba(124,58,237,.32);
    }
    .btn-ghost{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border-radius:999px;
      padding:12px 20px;
      font-weight:850;
      color:var(--ink);
      background:rgba(255,255,255,.86);
      border:1px solid var(--line);
      min-height:48px;
      transition:var(--ease);
    }
    .btn-ghost:hover{
      border-color:rgba(124,58,237,.35);
      transform:translateY(-2px);
      box-shadow:var(--shadow-sm);
      color:var(--brand);
    }
    .card-modern{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(230,232,239,.92);
      border-radius:var(--radius);
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      overflow:hidden;
    }
    .card-modern:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:rgba(124,58,237,.22);
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      background:rgba(255,255,255,.84);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(230,232,239,.88);
    }
    .brand-row{
      min-height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding:10px 0;
    }
    .brand-logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:-.03em;
      color:var(--ink);
      font-size:21px;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(255,255,255,.25),transparent),
        linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 12px 26px rgba(124,58,237,.28);
    }
    .top-actions{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .mini-search{
      width:280px;
      height:44px;
      display:flex;
      align-items:center;
      gap:9px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:999px;
      padding:0 14px;
      color:var(--muted);
      transition:var(--ease);
    }
    .mini-search:focus-within{
      border-color:rgba(124,58,237,.45);
      box-shadow:0 0 0 4px rgba(124,58,237,.08);
    }
    .mini-search input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--ink);
      font-size:14px;
    }
    .channel-row{
      border-top:1px solid rgba(230,232,239,.72);
      background:rgba(255,255,255,.72);
    }
    .channel-nav{
      display:flex;
      align-items:center;
      gap:10px;
      overflow-x:auto;
      scrollbar-width:none;
      padding:10px 0;
    }
    .channel-nav::-webkit-scrollbar{display:none}
    .channel-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 14px;
      border-radius:999px;
      font-size:14px;
      font-weight:800;
      color:#475467;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .channel-link:hover{
      color:var(--brand);
      background:rgba(124,58,237,.07);
      border-color:rgba(124,58,237,.13);
    }
    .channel-link.active{
      color:#fff;
      background:linear-gradient(135deg,var(--brand),#9f46ff);
      box-shadow:0 10px 22px rgba(124,58,237,.22);
    }
    .navbar-toggler.custom-toggler{
      border:1px solid var(--line);
      border-radius:14px;
      width:44px;
      height:44px;
      padding:0;
      display:none;
      align-items:center;
      justify-content:center;
      background:#fff;
      color:var(--ink);
    }

    .hero{
      min-height:calc(100vh - 120px);
      padding:70px 0 58px;
      display:flex;
      align-items:center;
    }
    .hero-shell{
      width:100%;
      border-radius:42px;
      position:relative;
      overflow:hidden;
      background:
        linear-gradient(120deg,rgba(17,24,39,.84),rgba(79,70,229,.80)),
        radial-gradient(circle at 22% 10%, rgba(236,72,153,.75), transparent 32%),
        radial-gradient(circle at 86% 28%, rgba(6,182,212,.55), transparent 28%),
        linear-gradient(135deg,#17122c,#3b1b7a 58%,#0f172a);
      box-shadow:var(--shadow-lg);
      color:#fff;
      padding:clamp(34px,7vw,82px) clamp(22px,6vw,74px);
    }
    .hero-shell:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
      background-size:48px 48px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.88),transparent 88%);
      pointer-events:none;
    }
    .hero-content{
      position:relative;
      z-index:1;
      text-align:center;
      max-width:980px;
      margin:0 auto;
    }
    .hero h1{
      font-size:clamp(42px,7vw,82px);
      line-height:1.05;
      letter-spacing:-.065em;
      font-weight:950;
      margin:14px auto 22px;
      max-width:920px;
    }
    .hero p{
      max-width:820px;
      margin:0 auto 30px;
      color:rgba(255,255,255,.82);
      font-size:clamp(17px,2vw,21px);
      line-height:1.85;
    }
    .hero-search{
      max-width:790px;
      margin:0 auto 22px;
      background:rgba(255,255,255,.96);
      border:1px solid rgba(255,255,255,.35);
      border-radius:24px;
      box-shadow:0 24px 70px rgba(0,0,0,.20);
      padding:9px;
      display:flex;
      align-items:center;
      gap:10px;
    }
    .hero-search-icon{
      width:48px;
      height:48px;
      border-radius:17px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      flex:0 0 auto;
    }
    .hero-search input{
      flex:1;
      border:0;
      outline:0;
      color:var(--ink);
      font-size:17px;
      min-width:0;
      padding:0 4px;
      background:transparent;
    }
    .hero-search button{
      border:0;
      border-radius:18px;
      padding:14px 23px;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,#111827,#374151);
      transition:var(--ease);
      white-space:nowrap;
    }
    .hero-search button:hover{
      transform:translateY(-1px);
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
    }
    .quick-tags{
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:10px;
      margin:22px auto 28px;
    }
    .quick-tags a{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 13px;
      color:rgba(255,255,255,.88);
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      border-radius:999px;
      font-size:14px;
      font-weight:750;
      backdrop-filter:blur(8px);
    }
    .quick-tags a:hover{
      color:#fff;
      background:rgba(255,255,255,.20);
      transform:translateY(-2px);
    }
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
      max-width:760px;
      margin:0 auto;
    }
    .metric-pill{
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.10);
      border-radius:22px;
      padding:15px 16px;
      backdrop-filter:blur(12px);
    }
    .metric-pill strong{
      display:block;
      font-size:24px;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .metric-pill span{
      display:block;
      margin-top:3px;
      color:rgba(255,255,255,.72);
      font-size:13px;
    }

    .play-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:22px;
      align-items:stretch;
      margin-top:34px;
    }
    .play-main{
      padding:30px;
      background:linear-gradient(180deg,#fff,#fbfaff);
    }
    .play-main h3,.reward-card h3,.timeline-panel h3,.category-card h3{
      font-size:23px;
      font-weight:900;
      letter-spacing:-.03em;
      margin:0 0 12px;
    }
    .play-main p,.reward-card p,.timeline-panel p,.category-card p{
      color:var(--muted);
      margin:0;
    }
    .step-list{
      display:grid;
      gap:14px;
      margin-top:24px;
    }
    .step-item{
      display:grid;
      grid-template-columns:46px 1fr;
      gap:14px;
      align-items:start;
      padding:15px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line);
      transition:var(--ease);
    }
    .step-item:hover{
      border-color:rgba(124,58,237,.25);
      transform:translateX(3px);
    }
    .step-num{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:#f2eaff;
      color:#6d28d9;
      font-weight:950;
    }
    .step-item strong{
      display:block;
      font-size:16px;
      margin-bottom:2px;
    }
    .step-item span{
      color:var(--muted);
      font-size:14px;
    }
    .play-side{
      display:grid;
      gap:16px;
    }
    .mini-feature{
      padding:24px;
      border-radius:var(--radius);
      border:1px solid var(--line);
      background:#fff;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .mini-feature:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow);
    }
    .mini-feature i{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:linear-gradient(135deg,rgba(124,58,237,.12),rgba(236,72,153,.10));
      color:var(--brand);
      margin-bottom:14px;
    }
    .mini-feature strong{font-size:18px;display:block;margin-bottom:5px}
    .mini-feature p{font-size:14px;color:var(--muted);margin:0}

    .reward-wrap{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
      margin-top:34px;
    }
    .reward-card{
      padding:24px;
      min-height:230px;
      position:relative;
      isolation:isolate;
    }
    .reward-card:after{
      content:"";
      position:absolute;
      right:-26px;
      bottom:-30px;
      width:116px;
      height:116px;
      border-radius:50%;
      background:rgba(124,58,237,.08);
      z-index:-1;
    }
    .reward-icon{
      width:50px;
      height:50px;
      border-radius:18px;
      display:grid;
      place-items:center;
      color:#fff;
      margin-bottom:18px;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 13px 26px rgba(124,58,237,.22);
    }
    .reward-card:nth-child(2) .reward-icon{background:linear-gradient(135deg,#f97316,#ec4899)}
    .reward-card:nth-child(3) .reward-icon{background:linear-gradient(135deg,#06b6d4,#3b82f6)}
    .reward-card:nth-child(4) .reward-icon{background:linear-gradient(135deg,#10b981,#14b8a6)}

    .progress-area{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:24px;
      align-items:center;
      margin-top:34px;
    }
    .progress-score{
      border-radius:32px;
      padding:30px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(17,24,39,.95),rgba(49,46,129,.92)),
        radial-gradient(circle at 80% 10%,rgba(236,72,153,.4),transparent 35%);
      box-shadow:var(--shadow);
    }
    .score-row{
      display:flex;
      justify-content:space-between;
      align-items:center;
      padding:16px 0;
      border-bottom:1px solid rgba(255,255,255,.12);
      gap:14px;
    }
    .score-row:last-child{border-bottom:0}
    .score-row strong{font-size:16px}
    .score-row span{
      color:rgba(255,255,255,.72);
      font-size:14px;
      text-align:right;
    }
    .bar{
      height:9px;
      background:rgba(255,255,255,.14);
      border-radius:999px;
      overflow:hidden;
      margin-top:10px;
    }
    .bar > i{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,#a78bfa,#f472b6);
    }
    .timeline-panel{
      padding:28px;
    }
    .timeline{
      margin-top:24px;
      position:relative;
      display:grid;
      gap:16px;
    }
    .timeline:before{
      content:"";
      position:absolute;
      left:18px;
      top:8px;
      bottom:8px;
      width:2px;
      background:linear-gradient(180deg,var(--brand),rgba(124,58,237,.08));
    }
    .timeline-item{
      position:relative;
      padding-left:54px;
    }
    .timeline-dot{
      position:absolute;
      left:8px;
      top:4px;
      width:22px;
      height:22px;
      border-radius:50%;
      background:#fff;
      border:6px solid var(--brand);
      box-shadow:0 0 0 5px rgba(124,58,237,.08);
    }
    .timeline-item strong{display:block;font-size:16px;margin-bottom:3px}
    .timeline-item span{display:block;color:var(--muted);font-size:14px}

    .category-layout{
      margin-top:34px;
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:22px;
    }
    .category-big{
      min-height:360px;
      padding:30px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(17,24,39,.88),rgba(124,58,237,.78)),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='900' height='520' viewBox='0 0 900 520'%3E%3Cg fill='none' stroke='rgba(255,255,255,.18)' stroke-width='2'%3E%3Cpath d='M40 410 C190 300 260 480 420 340 S720 240 850 120'/%3E%3Cpath d='M80 130 C210 210 250 50 390 130 S650 260 820 210'/%3E%3C/g%3E%3Ccircle cx='720' cy='110' r='90' fill='rgba(236,72,153,.28)'/%3E%3Ccircle cx='190' cy='390' r='120' fill='rgba(6,182,212,.22)'/%3E%3C/svg%3E");
      background-size:cover;
      border-radius:var(--radius-lg);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      box-shadow:var(--shadow);
    }
    .category-big p{color:rgba(255,255,255,.78);max-width:590px}
    .category-grid{
      display:grid;
      gap:14px;
    }
    .category-card{
      padding:22px;
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .category-card:hover{
      transform:translateY(-3px);
      border-color:rgba(124,58,237,.25);
      box-shadow:var(--shadow);
    }
    .category-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:16px;
    }

    .rank-wrap{
      margin-top:34px;
      display:grid;
      grid-template-columns:1fr .72fr;
      gap:22px;
      align-items:start;
    }
    .rank-table{
      overflow:hidden;
      border-radius:var(--radius);
      border:1px solid var(--line);
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .rank-row{
      display:grid;
      grid-template-columns:58px 1fr 92px 92px;
      gap:14px;
      align-items:center;
      padding:17px 20px;
      border-bottom:1px solid var(--line);
      transition:var(--ease);
    }
    .rank-row:last-child{border-bottom:0}
    .rank-row:hover{
      background:#fbfaff;
    }
    .rank-head{
      background:#f7f5ff;
      color:#475467;
      font-size:13px;
      font-weight:850;
    }
    .rank-no{
      width:34px;
      height:34px;
      border-radius:12px;
      display:grid;
      place-items:center;
      font-weight:950;
      color:#6d28d9;
      background:#f2eaff;
    }
    .rank-title strong{display:block;font-size:16px}
    .rank-title span{display:block;color:var(--muted);font-size:13px}
    .trend-up{color:var(--danger);font-weight:900}
    .trend-stable{color:var(--success);font-weight:900}
    .rank-aside{
      padding:28px;
      background:linear-gradient(180deg,#fff,#fff7ed);
    }
    .rank-aside ul{
      list-style:none;
      padding:0;
      margin:20px 0 0;
      display:grid;
      gap:12px;
    }
    .rank-aside li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
      font-size:14px;
    }
    .rank-aside li i{color:var(--warning);margin-top:5px}

    .news-layout{
      margin-top:34px;
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:22px;
      align-items:start;
    }
    .news-list{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .news-item{
      display:grid;
      grid-template-columns:110px 1fr;
      gap:18px;
      padding:20px;
      border-bottom:1px solid var(--line);
      transition:var(--ease);
    }
    .news-item:last-child{border-bottom:0}
    .news-item:hover{background:#fbfaff}
    .news-date{
      border-radius:16px;
      padding:13px 12px;
      text-align:center;
      background:#f7f5ff;
      color:#6d28d9;
      align-self:start;
      font-weight:900;
    }
    .news-date small{
      display:block;
      color:#8b5cf6;
      font-size:12px;
      margin-top:3px;
    }
    .news-item h3{
      font-size:18px;
      font-weight:900;
      margin:0 0 6px;
      line-height:1.45;
    }
    .news-item p{
      color:var(--muted);
      margin:0;
      font-size:14px;
    }
    .news-side{
      display:grid;
      gap:16px;
    }
    .recommend-box{
      padding:24px;
      border-radius:var(--radius);
      background:#111827;
      color:#fff;
      box-shadow:var(--shadow);
    }
    .recommend-box p{color:rgba(255,255,255,.72);margin:8px 0 18px}
    .recommend-tags{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
    }
    .recommend-tags span{
      padding:8px 10px;
      border-radius:999px;
      color:rgba(255,255,255,.84);
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.12);
      font-size:13px;
      font-weight:750;
    }
    .digest-card{
      padding:22px;
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .digest-card strong{display:block;font-size:18px;margin-bottom:8px}
    .digest-card p{font-size:14px;color:var(--muted);margin:0}

    .preview-grid{
      margin-top:34px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .preview-card{
      padding:24px;
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      position:relative;
      overflow:hidden;
      transition:var(--ease);
    }
    .preview-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:rgba(124,58,237,.24);
    }
    .preview-card:before{
      content:"";
      position:absolute;
      inset:0 0 auto;
      height:5px;
      background:linear-gradient(90deg,var(--brand),var(--brand-2));
    }
    .preview-time{
      display:inline-flex;
      align-items:center;
      gap:7px;
      font-size:13px;
      font-weight:850;
      color:#6d28d9;
      margin-bottom:12px;
    }
    .preview-card h3{
      font-size:20px;
      font-weight:900;
      letter-spacing:-.02em;
      margin:0 0 9px;
    }
    .preview-card p{color:var(--muted);font-size:14px;margin:0 0 18px}
    .preview-card a{font-weight:900;color:var(--brand)}
    .preview-card a:hover{color:var(--brand-2)}

    .faq-wrap{
      margin-top:34px;
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:24px;
      align-items:start;
    }
    .faq-intro{
      padding:30px;
      background:linear-gradient(180deg,#fff,#f7f5ff);
    }
    .faq-intro p{color:var(--muted);margin:12px 0 0}
    .accordion.custom-accordion{
      display:grid;
      gap:14px;
    }
    .custom-accordion .accordion-item{
      border:1px solid var(--line);
      border-radius:18px;
      overflow:hidden;
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .custom-accordion .accordion-button{
      padding:19px 22px;
      font-weight:900;
      color:var(--ink);
      background:#fff;
      box-shadow:none;
      line-height:1.55;
    }
    .custom-accordion .accordion-button:not(.collapsed){
      color:#5b21b6;
      background:#fbfaff;
    }
    .custom-accordion .accordion-button:focus{
      box-shadow:0 0 0 4px rgba(124,58,237,.10);
      border-color:transparent;
    }
    .custom-accordion .accordion-body{
      color:var(--muted);
      padding:0 22px 22px;
      font-size:15px;
    }

    .cta-section{
      padding:72px 0 110px;
    }
    .cta-box{
      border-radius:36px;
      padding:clamp(30px,6vw,60px);
      color:#fff;
      background:
        radial-gradient(circle at 16% 20%,rgba(236,72,153,.42),transparent 30%),
        radial-gradient(circle at 86% 10%,rgba(6,182,212,.38),transparent 34%),
        linear-gradient(135deg,#111827,#4c1d95 64%,#1e1b4b);
      box-shadow:var(--shadow-lg);
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:28px;
      align-items:center;
      overflow:hidden;
      position:relative;
    }
    .cta-box:after{
      content:"";
      position:absolute;
      right:-80px;
      bottom:-110px;
      width:310px;
      height:310px;
      border-radius:50%;
      border:42px solid rgba(255,255,255,.08);
    }
    .cta-box h2{
      font-size:clamp(30px,4.5vw,56px);
      line-height:1.12;
      letter-spacing:-.055em;
      font-weight:950;
      margin:0 0 16px;
    }
    .cta-box p{
      color:rgba(255,255,255,.78);
      margin:0;
      max-width:680px;
      font-size:17px;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:12px;
      position:relative;
      z-index:1;
    }
    .cta-actions .btn-ghost{
      background:rgba(255,255,255,.12);
      color:#fff;
      border-color:rgba(255,255,255,.18);
    }
    .cta-actions .btn-ghost:hover{
      background:rgba(255,255,255,.20);
      color:#fff;
    }

    .site-footer{
      background:#0b1020;
      color:#d0d5dd;
      padding:58px 0 86px;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:28px;
      align-items:start;
    }
    .footer-logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-size:20px;
      font-weight:950;
      color:#fff;
      letter-spacing:-.03em;
      margin-bottom:14px;
    }
    .footer-logo .brand-mark{
      width:38px;
      height:38px;
      border-radius:14px;
    }
    .footer-desc{
      max-width:520px;
      color:#98a2b3;
      margin:0;
      font-size:14px;
    }
    .footer-col h3{
      color:#fff;
      font-size:15px;
      font-weight:900;
      margin:0 0 14px;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:#98a2b3;
      font-size:14px;
    }
    .footer-links a:hover{
      color:#fff;
      padding-left:3px;
    }
    .copyright{
      margin-top:34px;
      padding-top:24px;
      border-top:1px solid rgba(255,255,255,.10);
      color:#7d89a3;
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }

    .fixed-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      width:min(980px,calc(100% - 28px));
      z-index:1020;
      padding:10px 12px 10px 18px;
      border-radius:999px;
      background:rgba(17,24,39,.88);
      color:#fff;
      backdrop-filter:blur(18px);
      border:1px solid rgba(255,255,255,.14);
      box-shadow:0 18px 50px rgba(0,0,0,.28);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .fixed-cta span{
      font-size:14px;
      color:rgba(255,255,255,.82);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .fixed-cta strong{color:#fff}
    .fixed-cta a{
      flex:0 0 auto;
      padding:10px 16px;
      border-radius:999px;
      background:#fff;
      color:#111827;
      font-weight:900;
      font-size:14px;
    }
    .fixed-cta a:hover{
      background:#f2eaff;
      color:#5b21b6;
    }

    @media (max-width:1024px){
      :root{--container:940px}
      .section{padding:68px 0}
      .hero{min-height:auto;padding:48px 0}
      .play-grid,
      .progress-area,
      .category-layout,
      .rank-wrap,
      .news-layout,
      .faq-wrap,
      .cta-box{
        grid-template-columns:1fr;
      }
      .reward-wrap{grid-template-columns:repeat(2,1fr)}
      .cta-actions{justify-content:flex-start}
      .rank-aside{order:2}
    }

    @media (max-width:768px){
      .container-xxl-custom{width:min(100% - 24px,var(--container))}
      .brand-row{min-height:64px}
      .brand-logo{font-size:18px}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .top-actions .mini-search{display:none}
      .navbar-toggler.custom-toggler{display:inline-flex}
      .top-actions .btn-brand{display:none}
      .channel-row .collapse:not(.show){display:none}
      .channel-nav{
        padding:12px 0;
        gap:8px;
      }
      .hero-shell{
        border-radius:28px;
        padding:34px 18px;
      }
      .hero h1{letter-spacing:-.045em}
      .hero-search{
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:10px;
      }
      .hero-search-icon{display:none}
      .hero-search input{
        min-height:46px;
        padding:0 10px;
        text-align:center;
      }
      .hero-search button{width:100%}
      .hero-metrics{grid-template-columns:1fr;gap:10px}
      .play-main,.timeline-panel,.progress-score,.rank-aside,.faq-intro{padding:22px}
      .reward-wrap,.preview-grid{grid-template-columns:1fr}
      .rank-row{
        grid-template-columns:46px 1fr 70px;
      }
      .rank-row > div:nth-child(4){display:none}
      .news-item{
        grid-template-columns:1fr;
        gap:10px;
      }
      .news-date{
        width:max-content;
        display:inline-block;
      }
      .footer-grid{grid-template-columns:1fr}
      .fixed-cta{
        border-radius:22px;
        align-items:flex-start;
        flex-direction:column;
        padding:14px;
      }
      .fixed-cta span{white-space:normal}
      .fixed-cta a{width:100%;text-align:center}
    }

    @media (max-width:520px){
      body{line-height:1.68}
      .section{padding:54px 0}
      .section-title{font-size:30px}
      .section-copy{font-size:15px}
      .hero{padding:28px 0 38px}
      .hero p{font-size:15px}
      .quick-tags{justify-content:flex-start}
      .metric-pill{padding:13px}
      .step-item{grid-template-columns:40px 1fr;padding:13px}
      .step-num{width:40px;height:40px;border-radius:14px}
      .category-big{min-height:310px;padding:24px}
      .rank-row{padding:15px 14px;gap:10px}
      .cta-section{padding-bottom:132px}
      .cta-box{border-radius:26px}
      .site-footer{padding-bottom:122px}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}