/* roulang page: index */
:root {
      --primary: #1E5A44;
      --secondary: #D97736;
      --dark-green: #11251E;
      --light-mint: #EAF3EE;
      --warm-cream: #FDF8F3;
      --text-title: #1A2421;
      --text-body: #4A5853;
      --text-muted: #7B8B85;
    }
    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      color: var(--text-body);
      background-color: #FAFCFB;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .hero-bg {
      background: linear-gradient(135deg, rgba(17, 37, 30, 0.92) 0%, rgba(30, 90, 68, 0.88) 100%), url('/assets/images/d50ab8278f8ac377.webp') center/cover no-repeat;
    }
    .custom-card {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      box-shadow: 0 10px 30px -5px rgba(30, 90, 68, 0.06);
    }
    .custom-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 20px 35px -8px rgba(30, 90, 68, 0.12);
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
    }
    .accordion-item.active .accordion-content {
      max-height: 240px;
    }
    .accordion-item.active .accordion-icon {
      transform: rotate(180deg);
    }