/* roulang page: index */
:root {
      --purple: #7B2FFF;
      --cyan: #00E5FF;
      --pink: #FF2D78;
      --bg: #0A0A14;
      --card: #1A1A2E;
      --border: rgba(123,47,255,0.15);
      --text: #B0B0C0;
      --white: #FFFFFF;
    }
    * {
      box-sizing: border-box;
    }
    body {
      margin: 0;
      font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
      background-color: #0A0A14;
      color: #B0B0C0;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    /* 背景网格纹理 */
    body::before {
      content: "";
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: 
        linear-gradient(rgba(123,47,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(123,47,255,0.03) 1px, transparent 1px);
      background-size: 40px 40px;
      pointer-events: none;
      z-index: 0;
    }
    .relative-content {
      position: relative;
      z-index: 1;
    }
    .glass-nav {
      background: rgba(10,10,20,0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .card-hover {
      transition: all 0.3s ease;
      border: 1px solid rgba(123,47,255,0.15);
    }
    .card-hover:hover {
      border-color: #7B2FFF;
      box-shadow: 0 12px 35px rgba(0,0,0,0.6), 0 0 20px rgba(123,47,255,0.2);
      transform: translateY(-4px);
    }
    .score-blink {
      animation: pulsePink 1.2s infinite;
    }
    @keyframes pulsePink {
      0% { color: #FF2D78; text-shadow: 0 0 5px #FF2D78; }
      50% { color: #ff6b9d; text-shadow: 0 0 15px #FF2D78; }
      100% { color: #FF2D78; text-shadow: 0 0 5px #FF2D78; }
    }
    .live-dot {
      animation: liveBlink 0.8s infinite;
    }
    @keyframes liveBlink {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.3; }
    }
    .underline-anim {
      position: relative;
    }
    .underline-anim::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 2px;
      background: #7B2FFF;
      transition: width 0.3s;
    }
    .underline-anim:hover::after {
      width: 100%;
    }
    .mobile-tab {
      background: #1A0A2E;
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      border-top: 1px solid rgba(123,47,255,0.2);
    }
    @media (max-width: 767px) {
      .desktop-nav { display: none; }
      .mobile-bottom-nav { display: flex; }
    }
    @media (min-width: 768px) {
      .desktop-nav { display: flex; }
      .mobile-bottom-nav { display: none; }
    }
    /* 自定义滚动条 */
    ::-webkit-scrollbar { width: 6px; }
    ::-webkit-scrollbar-track { background: #0A0A14; }
    ::-webkit-scrollbar-thumb { background: #7B2FFF; border-radius: 10px; }