/* roulang page: index */
:root {
      --primary-color: #10B981;
      --secondary-color: #1E40AF;
      --accent-color: #F59E0B;
      --text-main: #0F172A;
      --text-muted: #334155;
      --text-light: #64748B;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --border-color: #E2E8F0;
      --radius-md: 12px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      color: var(--text-muted);
      background-color: var(--bg-light);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    .custom-scroll-pt {
      scroll-padding-top: 5rem;
    }
    .glow-border {
      box-shadow: 0 0 20px -5px rgba(16, 185, 129, 0.25);
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
    }
    .gradient-hero-overlay {
      background: linear-gradient(135deg, rgba(11, 15, 23, 0.94) 0%, rgba(17, 24, 39, 0.88) 100%);
    }