/* roulang page: index */
:root {
      --bg-dark: #070B14;
      --bg-surface: #0D1527;
      --bg-card: rgba(15, 23, 42, 0.72);
      --primary-cyan: #00F0FF;
      --primary-blue: #0066FF;
      --accent-green: #10B981;
      --text-main: #FFFFFF;
      --text-sub: #94A3B8;
      --text-muted: #64748B;
      --border-glow: rgba(0, 240, 255, 0.22);
      --card-border: rgba(255, 255, 255, 0.08);
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-sub);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
      line-height: 1.6;
    }
    .text-glow {
      text-shadow: 0 0 16px rgba(0, 240, 255, 0.45);
    }
    .glow-cyan-btn {
      background: linear-gradient(135deg, #0066FF 0%, #00F0FF 100%);
      box-shadow: 0 0 22px rgba(0, 240, 255, 0.35);
      transition: all 0.25s ease;
    }
    .glow-cyan-btn:hover {
      box-shadow: 0 0 30px rgba(0, 240, 255, 0.65);
      transform: translateY(-2px);
    }
    .glow-green-btn {
      background: linear-gradient(135deg, #059669 0%, #10B981 100%);
      box-shadow: 0 0 20px rgba(16, 185, 129, 0.35);
      transition: all 0.25s ease;
    }
    .glow-green-btn:hover {
      box-shadow: 0 0 28px rgba(16, 185, 129, 0.6);
      transform: translateY(-2px);
    }
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--card-border);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .glass-card:hover {
      border-color: var(--border-glow);
      box-shadow: 0 10px 30px rgba(0, 102, 255, 0.12);
      transform: translateY(-3px);
    }
    .glass-card-featured {
      background: linear-gradient(180deg, rgba(13, 27, 62, 0.85) 0%, rgba(7, 15, 33, 0.95) 100%);
      border: 1px solid rgba(0, 240, 255, 0.4);
      box-shadow: 0 0 35px rgba(0, 240, 255, 0.2);
    }
    .section-spacing {
      padding-top: 5rem;
      padding-bottom: 5rem;
    }
    @media (min-width: 1024px) {
      .section-spacing {
        padding-top: 6.5rem;
        padding-bottom: 6.5rem;
      }
    }
    .badge-outline {
      border: 1px solid rgba(0, 240, 255, 0.3);
      background: rgba(0, 240, 255, 0.08);
      color: #00F0FF;
    }
    .radar-grid {
      background-size: 24px 24px;
      background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    }