/* roulang page: index */
:root {
      --color-navy: #0F2942;
      --color-midnight: #0A192F;
      --color-gold: #D4AF37;
      --color-gold-hover: #C59B27;
      --color-bg-base: #F8F9FA;
      --color-bg-alt: #F0F4F8;
      --color-text-main: #1E293B;
      --color-text-sub: #475569;
      --shadow-soft: 0 10px 30px -5px rgba(15, 41, 66, 0.06);
      --shadow-hover: 0 20px 35px -5px rgba(15, 41, 66, 0.12);
    }
    body {
      background-color: var(--color-bg-base);
      color: var(--color-text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.8;
      overflow-x: hidden;
    }
    .custom-shadow {
      box-shadow: var(--shadow-soft);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-shadow:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .gold-gradient-btn {
      background: linear-gradient(135deg, #DFBE52 0%, #C59B27 100%);
      transition: all 0.3s ease;
    }
    .gold-gradient-btn:hover {
      background: linear-gradient(135deg, #EBD06A 0%, #B88E1E 100%);
      box-shadow: 0 4px 15px rgba(212, 175, 55, 0.35);
    }
    .navy-gradient {
      background: linear-gradient(145deg, #0F2942 0%, #081626 100%);
    }