/* roulang page: index */
:root {
      --bg-dark: #0B0F19;
      --bg-card: rgba(15, 23, 42, 0.75);
      --border-cyan: rgba(56, 189, 248, 0.2);
      --primary-cyan: #38BDF8;
      --primary-blue: #2563EB;
      --accent-purple: #8B5CF6;
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
    }
    body {
      background-color: var(--bg-dark);
      color: #E2E8F0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid var(--border-cyan);
      box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    }
    .glow-btn {
      background: linear-gradient(135deg, #2563EB 0%, #38BDF8 100%);
      box-shadow: 0 0 22px rgba(56, 189, 248, 0.35);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glow-btn:hover {
      box-shadow: 0 0 32px rgba(56, 189, 248, 0.6);
      transform: translateY(-2px) scale(1.01);
    }
    .glow-purple-btn {
      background: linear-gradient(135deg, #7C3AED 0%, #A855F7 100%);
      box-shadow: 0 0 20px rgba(168, 85, 247, 0.35);
      transition: all 0.3s ease;
    }
    .glow-purple-btn:hover {
      box-shadow: 0 0 30px rgba(168, 85, 247, 0.55);
      transform: translateY(-2px);
    }
    .text-gradient {
      background: linear-gradient(to right, #38BDF8, #818CF8, #C084FC);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-bg {
      background: linear-gradient(180deg, rgba(11, 15, 25, 0.85) 0%, rgba(11, 15, 25, 0.95) 100%), url('/assets/images/60996a0b60cea9bd.jpg') center/cover no-repeat;
    }
    .accent-bg {
      background: linear-gradient(180deg, rgba(15, 23, 42, 0.85) 0%, rgba(11, 15, 25, 0.95) 100%), url('/assets/images/54201e14ad4d0511.jpg') center/cover fixed;
    }
    html {
      scroll-behavior: smooth;
    }