/* roulang page: index */
:root {
      --primary: #0D5C75;
      --primary-dark: #084357;
      --accent: #14B8A6;
      --accent-hover: #0d9488;
      --deep-navy: #0A1926;
      --surface-light: #F8FAFC;
      --border-color: #E2E8F0;
      --text-main: #0F172A;
      --text-muted: #475569;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      color: var(--text-main);
      background-color: #FFFFFF;
      overflow-x: hidden;
      line-height: 1.7;
    }
    .num-tabular {
      font-variant-numeric: tabular-nums;
      font-feature-settings: "tnum";
    }
    .hero-mask {
      background: linear-gradient(135deg, rgba(10, 25, 38, 0.94) 0%, rgba(13, 92, 117, 0.88) 100%);
    }
    .tech-border-glow {
      box-shadow: 0 0 15px rgba(20, 184, 166, 0.15);
    }
    .glass-card {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .dark-glass-card {
      background: rgba(15, 23, 42, 0.7);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    /* 自定义细节滚动条 */
    ::-webkit-scrollbar {
      width: 8px;
    }
    ::-webkit-scrollbar-track {
      background: #f1f5f9;
    }
    ::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
      background: #94a3b8;
    }