/* roulang page: index */
:root {
      --brand-primary: #2563EB;
      --brand-primary-dark: #1D4ED8;
      --brand-accent: #F59E0B;
      --brand-accent-hover: #D97706;
      --brand-green: #10B981;
      --brand-slate-dark: #0F172A;
      --brand-text-main: #334155;
      --brand-bg-light: #F8FAFC;
    }

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

    .card-soft-shadow {
      box-shadow: 0 10px 30px -5px rgba(37, 99, 235, 0.06), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-soft-shadow:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 35px -5px rgba(37, 99, 235, 0.12), 0 8px 12px -3px rgba(0, 0, 0, 0.04);
    }

    details > summary {
      list-style: none;
    }
    details > summary::-webkit-details-marker {
      display: none;
    }
    details[open] summary .faq-chevron {
      transform: rotate(180deg);
    }
    
    .hero-mask-img {
      clip-path: polygon(0 0, 100% 0, 100% 100%, 8% 100%);
    }
    @media (max-width: 1024px) {
      .hero-mask-img {
        clip-path: none;
      }
    }