/* roulang page: index */
:root {
      --bg-main: #0B0D11;
      --bg-card: #12161F;
      --primary: #00F5A0;
      --primary-hover: #00D68B;
      --accent: #FFB800;
      --text-main: #F3F4F6;
      --text-muted: #9CA3AF;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-active: rgba(0, 245, 160, 0.3);
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .text-tight {
      letter-spacing: -0.02em;
    }
    .custom-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .custom-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-active);
      box-shadow: 0 16px 32px rgba(0, 245, 160, 0.06);
    }
    .hero-bg {
      background: linear-gradient(180deg, rgba(11, 13, 17, 0.85) 0%, rgba(11, 13, 17, 0.98) 100%), url('/assets/images/ba6a9467a7569678.png') center/cover no-repeat;
    }
    .section-divider {
      border-top: 1px solid var(--border-subtle);
    }
    .cta-button {
      background-color: var(--primary);
      color: #05140D;
      font-weight: 600;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .cta-button:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 0 20px rgba(0, 245, 160, 0.4);
    }