/* roulang page: index */
:root {
      --primary: #1E3A2F;
      --accent: #C88A3E;
      --bg-dark: #0F1916;
      --bg-light: #F7F8F6;
      --text-main: #111827;
      --text-muted: #4B5563;
      --border-color: #E5E7EB;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      box-sizing: border-box;
    }
    .custom-scroll::-webkit-scrollbar {
      height: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background-color: #CBD5E1;
      border-radius: 4px;
    }
    .hero-bg {
      background-image: linear-gradient(rgba(15, 25, 22, 0.82), rgba(15, 25, 22, 0.88)), url('/assets/images/8d8c1ebe4652643f.webp');
      background-size: cover;
      background-position: center;
    }
    .tech-bg {
      background-image: linear-gradient(rgba(15, 25, 22, 0.95), rgba(15, 25, 22, 0.95)), url('/assets/images/c95d704d73838ab3.webp');
      background-size: cover;
      background-position: center;
    }
    .transition-card {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .transition-card:hover {
      transform: translateY(-4px);
    }