/* roulang page: index */
:root {
      --color-primary: #1E40AF;
      --color-primary-light: #2563EB;
      --color-primary-dark: #1E3A8A;
      --color-accent: #38BDF8;
      --color-success: #10B981;
      --color-warning: #F59E0B;
      --color-danger: #EF4444;
      --color-bg-light: #F8FAFC;
      --color-bg-subtle: #F1F5F9;
      --color-text-main: #0F172A;
      --color-text-muted: #64748B;
      --color-border: #E2E8F0;
      --shadow-card: 0 4px 20px -2px rgba(30, 64, 175, 0.06);
      --shadow-hover: 0 16px 32px -4px rgba(30, 64, 175, 0.12);
      --radius-container: 1rem;
      --radius-card: 0.875rem;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--color-text-main);
      background-color: #FFFFFF;
      overflow-x: hidden;
    }

    .card-shadow {
      box-shadow: var(--shadow-card);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .card-shadow:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }

    .badge-outline {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.025em;
    }

    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
    }

    .accordion-item.active .accordion-content {
      max-height: 500px;
      transition: max-height 0.45s ease-in;
    }

    .accordion-item.active .accordion-arrow {
      transform: rotate(180deg);
    }

    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.96) 0%, rgba(241, 245, 249, 0.92) 100%);
    }

    .custom-scrollbar::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 4px;
    }