/* roulang page: index */
:root {
      --color-primary: #00b4d8;
      --color-accent: #10b981;
      --color-dark: #0a0d12;
      --color-slate-bg: #f8fafc;
    }
    body {
      font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Inter', sans-serif;
      -webkit-font-smoothing: antialiased;
      color: #334155;
      background-color: #f8fafc;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(0, 180, 216, 0.12) 0%, rgba(10, 13, 18, 0) 70%);
    }
    .glass-dark {
      background: rgba(18, 23, 33, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .glass-light {
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .pulse-green {
      animation: pulseGreen 2s infinite cubic-bezier(0.4, 0, 0.6, 1);
    }
    @keyframes pulseGreen {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(1.2); }
    }