/* roulang page: index */
:root {
      --bg-dark: #0B0F17;
      --bg-card: rgba(17, 24, 39, 0.75);
      --accent-mint: #10B981;
      --accent-cyan: #06B6D4;
      --accent-orange: #F97316;
      --text-main: #F9FAFB;
      --text-muted: #9CA3AF;
      --border-subtle: rgba(255, 255, 255, 0.08);
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .custom-glow {
      box-shadow: 0 10px 30px -10px rgba(16, 185, 129, 0.18);
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 20%, rgba(16, 185, 129, 0.12) 0%, rgba(6, 182, 212, 0.04) 45%, transparent 70%);
    }
    .cyber-grid {
      background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
                        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
      background-size: 36px 36px;
    }