/* roulang page: index */
:root {
      --color-primary: #0F3A3E;
      --color-accent: #00BFA5;
      --color-bg: #F8FAFA;
      --color-dark: #0A181A;
      --color-text: #1A2425;
      --color-muted: #5A6869;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--color-bg);
      color: var(--color-text);
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      margin: 0;
      padding: 0;
    }
    .hero-bg {
      background: linear-gradient(135deg, rgba(10, 24, 26, 0.94) 0%, rgba(15, 58, 62, 0.92) 100%), url('/assets/images/de6be31f0e4d5bf0.jpg') center/cover no-repeat;
    }
    .card-hover {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 32px -8px rgba(15, 58, 62, 0.12);
      border-color: rgba(0, 191, 165, 0.4);
    }
    .progress-bar-glow {
      box-shadow: 0 0 12px rgba(0, 191, 165, 0.5);
    }