/* roulang page: index */
:root {
      --primary: #15803d;
      --primary-dark: #166534;
      --accent: #d97706;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      overflow-x: hidden;
    }
    .video-hero-overlay {
      background: linear-gradient(180deg, rgba(11, 19, 14, 0.78) 0%, rgba(15, 23, 42, 0.88) 100%);
    }
    .grid-pattern {
      background-image: radial-gradient(rgba(34, 197, 94, 0.15) 1px, transparent 1px);
      background-size: 24px 24px;
    }
    .card-hover-effect {
      transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
    }
    .card-hover-effect:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 32px -8px rgba(15, 23, 42, 0.08);
      border-color: rgba(34, 197, 94, 0.4);
    }
    .badge-glow {
      box-shadow: 0 0 14px rgba(245, 158, 11, 0.35);
    }
    html {
      scroll-behavior: smooth;
    }