/* roulang page: index */
:root {
      --primary: #0052FF;
      --primary-hover: #003ECC;
      --accent-green: #00D26A;
      --accent-orange: #FF6B00;
      --bg-dark: #0B0F19;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-light: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
      font-family: Inter, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    body {
      color: var(--text-main);
      background-color: #F8FAFC;
      line-height: 1.75;
    }
    .custom-container {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .tech-border {
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .glow-effect {
      box-shadow: 0 0 25px rgba(0, 82, 255, 0.15);
    }
    .hero-bg {
      background-image: linear-gradient(to right, rgba(11, 15, 25, 0.94) 30%, rgba(11, 15, 25, 0.82) 70%), url('/assets/images/2a92ccaa4f7b2884.webp');
      background-size: cover;
      background-position: center;
    }
    .dark-section-bg {
      background-image: radial-gradient(circle at 50% 20%, rgba(0, 82, 255, 0.12) 0%, transparent 60%), #0B0F19;
    }