/* roulang page: index */
:root {
      --primary: #1D4ED8;
      --primary-dark: #1E40AF;
      --accent: #0EA5E9;
      --accent-cyan: #06B6D4;
      --dark: #0F172A;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      -webkit-font-smoothing: antialiased;
    }
    .custom-shadow-card {
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .custom-shadow-card:hover {
      box-shadow: 0 20px 25px -5px rgba(30, 64, 175, 0.1), 0 8px 10px -6px rgba(30, 64, 175, 0.08);
      transform: translateY(-4px);
    }
    .badge-soft {
      background: rgba(14, 165, 233, 0.1);
      color: #0284c7;
      border: 1px solid rgba(14, 165, 233, 0.2);
    }
    .hero-glass {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .phone-mockup-frame {
      border: 8px solid #1e293b;
      border-radius: 36px;
      box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
    }
    details summary::-webkit-details-marker {
      display: none;
    }