/* roulang page: index */
:root {
      --bg-main: #080C0C;
      --bg-card: #111A19;
      --border-dark: #1E293B;
      --primary-green: #10B981;
      --text-main: #F8FAFC;
      --text-muted: #94A3B8;
    }
    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
      letter-spacing: 0.02em;
      background-color: var(--bg-main);
      color: var(--text-main);
      overflow-x: hidden;
    }
    body {
      overflow-x: hidden;
      line-height: 1.75;
    }
    .neon-border {
      border: 1px solid rgba(16, 185, 129, 0.25);
      box-shadow: 0 0 20px rgba(16, 185, 129, 0.08);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .neon-border:hover {
      border-color: rgba(16, 185, 129, 0.6);
      box-shadow: 0 0 25px rgba(16, 185, 129, 0.2);
      transform: translateY(-4px);
    }
    .glow-tag {
      background: rgba(16, 185, 129, 0.12);
      border: 1px solid rgba(16, 185, 129, 0.3);
      color: #34D399;
    }
    .hero-bg {
      background-image: linear-gradient(to bottom, rgba(8, 12, 12, 0.88), rgba(8, 12, 12, 0.98)), url('/assets/images/6e9f1f19686b1eee.jpg');
      background-size: cover;
      background-position: center;
    }
    .arch-bg {
      background-image: linear-gradient(to right, rgba(8, 12, 12, 0.95), rgba(11, 20, 19, 0.85)), url('/assets/images/54df95a7e8968dde.png');
      background-size: cover;
      background-position: center;
    }
    .cta-radial {
      background: radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.15) 0%, rgba(11, 20, 19, 0.9) 70%);
    }