/* roulang page: index */
:root {
      --primary: #FF5A1F;
      --secondary: #0F172A;
      --accent: #DC2626;
      --bg-light: #F8FAFC;
      --bg-dark: #0B0F19;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: #1e293b;
      background-color: #ffffff;
      overflow-x: hidden;
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(11, 15, 25, 0.92) 100%), url('/assets/images/587455f3e0fc3df6.jpg') center/cover no-repeat;
    }
    .dark-section-bg {
      background: radial-gradient(circle at top right, rgba(255, 90, 31, 0.12), transparent 50%), #0B0F19;
    }
    .app-phone-mockup {
      box-shadow: 0 25px 50px -12px rgba(255, 90, 31, 0.25);
    }
    .tab-active {
      border-color: #FF5A1F;
      color: #FF5A1F;
      background-color: rgba(255, 90, 31, 0.05);
    }