/* roulang page: index */
:root {
      --primary: #0A6CFF;
      --accent: #00E599;
      --cta: #FF5C00;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-box: 16px;
      --radius-btn: 8px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: system-ui, -apple-system, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      scroll-behavior: smooth;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    .custom-scroll-smooth {
      scroll-behavior: smooth;
    }
    .hero-bg {
      background: linear-gradient(180deg, rgba(9, 13, 22, 0.88) 0%, rgba(9, 13, 22, 0.96) 100%), url('/assets/images/67dfd6887e0a5001.webp') center/cover no-repeat;
    }
    .glow-accent {
      box-shadow: 0 0 25px rgba(0, 229, 153, 0.25);
    }
    .glow-primary {
      box-shadow: 0 10px 30px rgba(10, 108, 255, 0.2);
    }
    details summary::-webkit-details-marker {
      display: none;
    }
    details summary {
      list-style: none;
    }