/* roulang page: index */
:root {
      --primary: #10B981;
      --primary-light: #00E599;
      --secondary: #0F172A;
      --surface-dark: #0B0F19;
      --accent-orange: #F97316;
      --bg-base: #F8FAFC;
      --bg-alt: #F1F5F9;
      --text-main: #1E293B;
      --text-muted: #64748B;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      overflow-x: hidden;
      scroll-behavior: smooth;
    }
    .hero-stage-shadow {
      box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.1);
    }
    .card-hover-fx {
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    }
    .card-hover-fx:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 28px -4px rgba(15, 23, 42, 0.08);
    }
    .glow-tag {
      background: rgba(16, 185, 129, 0.12);
      border: 1px solid rgba(16, 185, 129, 0.3);
    }
    details > summary {
      list-style: none;
    }
    details > summary::-webkit-details-marker {
      display: none;
    }