/* roulang page: index */
:root {
      --primary: #0F766E;
      --primary-hover: #115E59;
      --accent: #F59E0B;
      --accent-deep: #EA580C;
      --bg-light: #F8FAFC;
      --dark-surface: #0B132B;
      --text-main: #0F172A;
      --text-sub: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-main);
      background-color: #FFFFFF;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
    }
    .custom-container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .interactive-card {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .interactive-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 28px -6px rgba(15, 118, 110, 0.12), 0 8px 12px -4px rgba(0, 0, 0, 0.04);
    }
    .hero-banner {
      background-image: linear-gradient(90deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 118, 110, 0.82) 100%), url('/assets/images/01f5e6a6d1fd54cf.jpg');
      background-size: cover;
      background-position: center;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.875rem;
      font-size: 0.8125rem;
      font-weight: 600;
      border-radius: 9999px;
      background-color: #CCFBF1;
      color: #0F766E;
      margin-bottom: 0.75rem;
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
    }
    .accordion-content.active {
      max-height: 400px;
    }