/* roulang page: index */
:root {
      --primary: #0F766E;
      --primary-dark: #042F2E;
      --accent-cyan: #06B6D4;
      --accent-amber: #F59E0B;
      --bg-light: #F8FAFC;
      --bg-alt: #F1F5F9;
      --text-main: #0F172A;
      --text-muted: #475569;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
    }
    .badge-glow {
      box-shadow: 0 0 15px rgba(6, 182, 212, 0.35);
    }
    .countdown-ring {
      background: conic-gradient(#06B6D4 var(--tw-progress, 78%), #0F766E 0deg);
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(4, 47, 46, 0.94) 0%, rgba(15, 118, 110, 0.88) 100%);
    }