/* roulang page: index */
:root {
      --bg-dark: #0D1117;
      --bg-card: #161B22;
      --brand-teal: #00D2A0;
      --brand-blue: #0A84FF;
      --text-main: #F0F6FC;
      --text-muted: #8B949E;
      --border-line: rgba(255, 255, 255, 0.08);
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .glass-dock {
      background: rgba(22, 27, 34, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-line);
      box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
    }
    .custom-gradient-border {
      position: relative;
      border: 1px solid transparent;
      background-clip: padding-box;
    }
    .custom-gradient-border::after {
      content: '';
      position: absolute;
      top: -1px; bottom: -1px; left: -1px; right: -1px;
      background: linear-gradient(135deg, rgba(0, 210, 160, 0.25), rgba(10, 132, 255, 0.1), transparent);
      border-radius: inherit;
      z-index: -1;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(0, 210, 160, 0.15) 0%, rgba(10, 132, 255, 0.05) 45%, transparent 70%);
    }
    .rank-num {
      font-feature-settings: "tnum";
      font-variant-numeric: tabular-nums;
    }
    /* Accordion styles */
    details summary::-webkit-details-marker {
      display: none;
    }