/* roulang page: index */
:root {
      --primary: #0f766e;
      --primary-dark: #134e4a;
      --accent: #f97316;
      --text-main: #0f172a;
      --text-muted: #475569;
      --bg-light: #f8fafc;
    }
    body {
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }
    .hero-gradient {
      background: linear-gradient(135deg, rgba(15, 118, 110, 0.92) 0%, rgba(19, 78, 74, 0.96) 100%), url('/assets/images/c196095952e4ad25.webp') center/cover no-repeat;
    }
    .dark-panel {
      background: linear-gradient(135deg, #0f172a 0%, #134e4a 100%);
    }
    .card-shadow {
      box-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.05), 0 4px 12px -2px rgba(15, 23, 42, 0.03);
    }
    .step-line::after {
      content: '';
      position: absolute;
      top: 50%;
      right: -24px;
      width: 24px;
      height: 2px;
      background: #cbd5e1;
    }
    @media (max-width: 1024px) {
      .step-line::after { display: none; }
    }
    html {
      scroll-behavior: smooth;
    }