/* roulang page: index */
:root {
      --bg-deep: #0B1120;
      --bg-card: #151F32;
      --brand-green: #059669;
      --brand-accent: #10B981;
      --brand-amber: #D97706;
      --text-main: #F1F5F9;
      --text-muted: #94A3B8;
      --border-color: #1E293B;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--bg-deep);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
      line-height: 1.75;
    }
    .clip-slant {
      clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
    }
    @media (max-width: 768px) {
      .clip-slant {
        clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
      }
    }
    .hero-mask {
      background: linear-gradient(135deg, rgba(11, 17, 32, 0.95) 0%, rgba(15, 23, 42, 0.82) 60%, rgba(5, 150, 105, 0.4) 100%);
    }
    .tag-glow {
      box-shadow: 0 0 12px rgba(16, 185, 129, 0.25);
    }