/* roulang page: index */
:root {
      --primary: #0F5B46;
      --primary-dark: #0B2B20;
      --accent: #E85A1D;
      --bg-light: #F8FAFC;
      --text-main: #0B1914;
      --text-sub: #3A4B45;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      background-color: var(--bg-light);
      color: var(--text-main);
      overflow-x: hidden;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(15, 91, 70, 0.08);
    }
    .hover-lift {
      transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease;
    }
    .hover-lift:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 28px -4px rgba(15, 91, 70, 0.12);
    }
    details summary::-webkit-details-marker {
      display: none;
    }
    details[open] summary .faq-icon {
      transform: rotate(180deg);
    }
    .bento-card {
      background: #FFFFFF;
      border: 1px solid rgba(15, 91, 70, 0.08);
      border-radius: 14px;
    }