/* roulang page: index */
:root {
      --color-primary: #1E1B4B;
      --color-brand: #4F46E5;
      --color-accent: #06B6D4;
      --color-cta: #F59E0B;
      --color-dark: #0F172A;
      --color-bg-alt: #F8FAFC;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      color: #334155;
      background-color: #FFFFFF;
      overflow-x: hidden;
    }
    .badge-glow {
      box-shadow: 0 0 15px rgba(79, 70, 229, 0.35);
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .hero-overlay {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 27, 75, 0.88) 100%);
    }
    .glass-card {
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid rgba(226, 232, 240, 0.8);
      backdrop-filter: blur(8px);
    }