/* roulang page: index */
:root {
      --primary: #0F766E;
      --primary-hover: #0D9488;
      --accent: #F97316;
      --dark-slate: #0F172A;
      --body-bg: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Lantinghei SC", "Microsoft YaHei", sans-serif;
      background-color: var(--body-bg);
      color: var(--text-main);
      line-height: 1.8;
      scroll-behavior: smooth;
      overflow-x: hidden;
    }
    .custom-container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    @media (min-width: 768px) {
      .custom-container {
        padding-left: 32px;
        padding-right: 32px;
      }
    }
    .hero-countdown-ring {
      background: conic-gradient(#F97316 78%, rgba(255,255,255,0.15) 0);
    }
    .glass-card {
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .glass-dark-card {
      background: rgba(30, 41, 59, 0.7);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(51, 65, 85, 0.6);
    }
    .card-hover-lift {
      transition: all 0.28s ease-out;
    }
    .card-hover-lift:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 32px -8px rgba(15, 23, 42, 0.1);
    }