/* roulang page: index */
:root {
      --color-primary: #2563EB;
      --color-secondary: #06B6D4;
      --color-accent: #8B5CF6;
      --color-bg-light: #F8FAFC;
      --color-text-main: #1E293B;
      --color-text-muted: #64748B;
      --shadow-soft: 0 10px 30px -5px rgba(37, 99, 235, 0.08);
      --shadow-hover: 0 20px 40px -10px rgba(37, 99, 235, 0.16);
    }
    body {
      background-color: var(--color-bg-light);
      color: var(--color-text-main);
      -webkit-font-smoothing: antialiased;
    }
    .custom-card-shadow {
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
    }
    .custom-card-shadow:hover {
      box-shadow: var(--shadow-hover);
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .text-gradient {
      background: linear-gradient(135deg, #1D4ED8 0%, #06B6D4 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    /* 表单聚焦微动效 */
    input:focus, select:focus, textarea:focus {
      outline: none;
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
    }
    /* 原生手风琴细节 */
    details > summary::-webkit-details-marker {
      display: none;
    }