/* roulang page: index */
:root {
      --bg-canvas: #070b14;
      --bg-card: rgba(15, 23, 42, 0.72);
      --border-glass: rgba(255, 255, 255, 0.08);
      --brand-cyan: #00f0ff;
      --brand-blue: #2979ff;
      --accent-green: #00e5a3;
      --accent-purple: #7c4dff;
      --accent-warn: #ff9100;
      --text-main: #f0f6fc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
    }
    body {
      background-color: var(--bg-canvas);
      color: var(--text-main);
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
      scroll-behavior: smooth;
    }
    .glass-panel {
      background: var(--bg-card);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-glass);
      box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.08);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-panel:hover {
      border-color: rgba(0, 240, 255, 0.4);
      box-shadow: 0 12px 36px -4px rgba(0, 240, 255, 0.15);
      transform: translateY(-4px);
    }
    .glow-btn {
      background: linear-gradient(135deg, var(--brand-cyan), var(--brand-blue));
      color: #070b14;
      font-weight: 700;
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .glow-btn:hover {
      box-shadow: 0 0 32px rgba(0, 240, 255, 0.65);
      transform: scale(1.02);
      color: #040810;
    }
    .glow-btn-alt {
      background: rgba(41, 121, 255, 0.15);
      border: 1px solid rgba(0, 240, 255, 0.4);
      color: #00f0ff;
      transition: all 0.3s ease;
    }
    .glow-btn-alt:hover {
      background: rgba(0, 240, 255, 0.25);
      box-shadow: 0 0 24px rgba(0, 240, 255, 0.3);
    }
    .stat-mono {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      text-shadow: 0 0 12px rgba(0, 240, 255, 0.45);
    }
    .radar-grid {
      background-size: 28px 28px;
      background-image: 
        linear-gradient(to right, rgba(0, 240, 255, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 240, 255, 0.05) 1px, transparent 1px);
    }
    .clip-bento-hero {
      position: relative;
      background: radial-gradient(circle at 80% 20%, rgba(41, 121, 255, 0.18) 0%, transparent 60%);
    }