/* roulang page: index */
:root {
      --primary-color: #00E599;
      --accent-color: #FF6B22;
      --bg-dark: #0B0F12;
      --bg-card: #131920;
      --text-main: #F9FAFB;
      --text-muted: #9CA3AF;
      --border-dark: #202A36;
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .neon-border-hover {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .neon-border-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 10px 30px -10px rgba(0, 229, 153, 0.2);
      border-color: rgba(0, 229, 153, 0.6);
    }
    .text-glow {
      text-shadow: 0 0 20px rgba(0, 229, 153, 0.4);
    }
    /* 平滑滚动与焦点态 */
    a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
      outline: 2px solid #00E599;
      outline-offset: 2px;
    }