/* roulang page: index */
:root {
      --bg-base: #0b0f14;
      --bg-surface: #121820;
      --bg-elevated: #1a222d;
      --color-emerald: #10b981;
      --color-emerald-glow: rgba(16, 185, 129, 0.15);
      --color-amber: #f59e0b;
      --color-cyan: #06b6d4;
      --text-primary: #f8fafc;
      --text-secondary: #94a3b8;
      --text-muted: #64748b;
      --border-subtle: #1e293b;
      --border-active: #334155;
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-primary);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-variant-numeric: tabular-nums;
      overflow-x: hidden;
    }
    .grid-pattern {
      background-size: 32px 32px;
      background-image: 
        linear-gradient(to right, rgba(30, 41, 59, 0.35) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(30, 41, 59, 0.35) 1px, transparent 1px);
    }
    .glow-box {
      box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.5), 0 4px 12px 0 rgba(0, 0, 0, 0.35);
    }
    .glow-box-emerald:hover {
      box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
    }
    .accordion-content {
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
    }