/* roulang page: index */
:root {
      --primary: #0B192C;
      --secondary: #00C49F;
      --accent: #FF6B35;
      --bg-gray: #F8FAFC;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-main);
      background-color: var(--bg-gray);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .custom-gradient-header {
      background: linear-gradient(135deg, #0B192C 0%, #133E87 50%, #00C49F 100%);
    }
    .hero-bg {
      background: linear-gradient(rgba(11, 25, 44, 0.88), rgba(15, 23, 42, 0.94)), url('/assets/images/7973a2f9718beb11.jpg') center/cover no-repeat;
    }
    .glow-card {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glow-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 32px -8px rgba(0, 196, 159, 0.15);
    }
    .countdown-ring {
      background: conic-gradient(#00C49F calc(var(--percent) * 1%), #1E293B 0deg);
    }
    details > summary::-webkit-details-marker {
      display: none;
    }
    details[open] summary svg {
      transform: rotate(180deg);
    }