/* roulang page: index */
:root {
      --bg-dark: #070b14;
      --bg-deep: #0a1224;
      --accent-blue: #00b4d8;
      --accent-cyan: #00f2fe;
      --accent-purple: #6366f1;
      --accent-amber: #f59e0b;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --glass-bg: rgba(15, 23, 42, 0.65);
      --glass-border: rgba(255, 255, 255, 0.08);
      --glow-shadow: 0 0 25px rgba(0, 180, 216, 0.35);
    }

    * {
      box-sizing: border-box;
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background-color: var(--bg-dark);
      background-image: radial-gradient(circle at 50% 0%, #101c38 0%, #070b14 75%);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
    }

    .glass-panel {
      background: var(--glass-bg);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--glass-border);
    }

    .glass-card {
      background: rgba(15, 23, 42, 0.6);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid rgba(255, 255, 255, 0.07);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
      border-color: rgba(0, 242, 254, 0.3);
      transform: translateY(-4px);
      box-shadow: 0 16px 35px -10px rgba(0, 180, 216, 0.22);
    }

    .btn-glow-primary {
      background: linear-gradient(135deg, #00b4d8 0%, #6366f1 100%);
      box-shadow: 0 0 20px rgba(0, 180, 216, 0.45);
      transition: all 0.25s ease;
    }
    .btn-glow-primary:hover {
      box-shadow: 0 0 28px rgba(0, 242, 254, 0.65);
      transform: scale(1.02);
      filter: brightness(1.1);
    }

    .btn-glow-secondary {
      background: rgba(15, 23, 42, 0.8);
      border: 1px solid rgba(0, 180, 216, 0.4);
      transition: all 0.25s ease;
    }
    .btn-glow-secondary:hover {
      border-color: #00f2fe;
      background: rgba(0, 180, 216, 0.15);
      box-shadow: 0 0 15px rgba(0, 180, 216, 0.3);
    }

    .text-gradient {
      background: linear-gradient(135deg, #ffffff 20%, #00f2fe 70%, #00b4d8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .text-cyan-gradient {
      background: linear-gradient(135deg, #00f2fe 0%, #6366f1 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .live-pulse {
      animation: livePulse 2s infinite;
    }
    @keyframes livePulse {
      0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7); }
      70% { box-shadow: 0 0 0 12px rgba(245, 158, 11, 0); }
      100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
    }

    /* 滚动条美化 */
    ::-webkit-scrollbar {
      width: 8px;
    }
    ::-webkit-scrollbar-track {
      background: #070b14;
    }
    ::-webkit-scrollbar-thumb {
      background: #1e293b;
      border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
      background: #00b4d8;
    }