/* roulang page: index */
:root {
      --primary: #00B074;
      --primary-dark: #0E2A27;
      --accent: #FF6B35;
      --bg-surface: #F7F9FA;
      --text-main: #1F2937;
      --text-muted: #4B5563;
      --border-color: #E5E7EB;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #FFFFFF;
      overflow-x: hidden;
    }
    .custom-scroll::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 3px;
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(14, 42, 39, 0.94) 0%, rgba(11, 19, 21, 0.90) 100%);
    }
    .case-bg-overlay {
      background: radial-gradient(circle at 50% 30%, rgba(0, 176, 116, 0.08) 0%, rgba(11, 19, 21, 1) 75%);
    }