/* roulang page: index */
:root {
      --bg-main: #070B14;
      --color-blue: #1E6FFF;
      --color-cyan: #00F2FE;
      --glass-card: rgba(15, 23, 42, 0.72);
      --glass-border: rgba(255, 255, 255, 0.08);
      --glass-border-hover: rgba(0, 242, 254, 0.38);
    }
    body {
      background-color: var(--bg-main);
      color: #F8FAFC;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
      scroll-behavior: smooth;
    }
    .tech-grid-bg {
      background-image: radial-gradient(rgba(30, 111, 255, 0.12) 1px, transparent 1px), radial-gradient(rgba(0, 242, 254, 0.08) 1px, transparent 1px);
      background-size: 36px 36px;
      background-position: 0 0, 18px 18px;
    }
    .glass-panel {
      background: var(--glass-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--glass-border);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-panel:hover {
      border-color: var(--glass-border-hover);
      box-shadow: 0 10px 30px -10px rgba(0, 242, 254, 0.25);
      transform: translateY(-3px);
    }
    .btn-gradient {
      background: linear-gradient(135deg, #1E6FFF 0%, #00F2FE 100%);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .btn-gradient:hover {
      box-shadow: 0 0 26px rgba(0, 242, 254, 0.55);
      transform: scale(1.02);
    }
    .btn-gradient:active {
      transform: scale(0.98);
    }
    .btn-outline {
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid rgba(30, 111, 255, 0.4);
      backdrop-filter: blur(8px);
      transition: all 0.3s ease;
    }
    .btn-outline:hover {
      border-color: var(--color-cyan);
      box-shadow: 0 0 18px rgba(30, 111, 255, 0.35);
      color: #FFFFFF;
    }
    .badge-chip {
      background: rgba(30, 111, 255, 0.12);
      border: 1px solid rgba(30, 111, 255, 0.35);
      color: #38BDF8;
    }
    .text-glow {
      text-shadow: 0 0 18px rgba(0, 242, 254, 0.45);
    }
    /* 模拟控制台窗格红黄绿点 */
    .terminal-dots span {
      display: inline-block;
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    details summary::-webkit-details-marker {
      display: none;
    }