/* roulang page: index */
:root {
      --brand-primary: #0284c7;
      --brand-accent: #0ea5e9;
      --brand-gold: #f59e0b;
      --brand-dark: #0f172a;
      --brand-darker: #0b0f19;
      --brand-gray: #475569;
      --brand-light: #f8fafc;
      --brand-border: rgba(226, 232, 240, 0.9);
      --brand-border-dark: rgba(255, 255, 255, 0.12);
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.8;
      background-color: #f8fafc;
      color: #1e293b;
      overflow-x: hidden;
      padding-bottom: 72px; /* 底部固定转化栏避让 */
    }
    .custom-shadow {
      box-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.06), 0 4px 12px -2px rgba(15, 23, 42, 0.03);
    }
    .dark-card-shadow {
      box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.45);
    }
    .grid-bg-pattern {
      background-size: 32px 32px;
      background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    }
    .light-grid-pattern {
      background-size: 36px 36px;
      background-image: 
        linear-gradient(to right, rgba(14, 165, 233, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(14, 165, 233, 0.04) 1px, transparent 1px);
    }
    details summary::-webkit-details-marker {
      display: none;
    }
    .btn-press:active {
      transform: scale(0.98);
    }