/* roulang page: index */
:root {
      --font-stack: system-ui, -apple-system, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      --color-primary: #0e7490;
      --color-action: #0284c7;
      --color-accent: #d97706;
      --color-dark: #0f172a;
      --color-bg-alt: #f8fafb;
      --border-color: #e2e8f0;
    }

    body {
      font-family: var(--font-stack);
      color: #334155;
      background-color: #ffffff;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(14, 116, 144, 0.35) 0%, rgba(15, 23, 42, 0.95) 75%);
    }

    .glass-card {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
    }

    .spec-table th, .spec-table td {
      padding: 1rem 1.25rem;
      border-bottom: 1px solid #e2e8f0;
    }

    .spec-table tr:last-child td {
      border-bottom: none;
    }