/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-dark: #0A2540;
      --accent-orange: #FF6B00;
      --accent-gold: #D4AF37;
      --bg-dark: #070D18;
      --bg-dark-card: #0F172A;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #64748B;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .gold-gradient {
      background: linear-gradient(135deg, #FFE259 0%, #FFA751 100%);
    }
    .gold-text {
      background: linear-gradient(135deg, #F6D365 0%, #FDA085 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .border-gold-glow {
      border: 1px solid rgba(212, 175, 55, 0.35);
      box-shadow: 0 0 25px rgba(212, 175, 55, 0.12);
    }
    .hero-bg-overlay {
      background: linear-gradient(180deg, rgba(7, 13, 24, 0.92) 0%, rgba(10, 37, 64, 0.88) 100%);
    }
    .transition-custom {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }