/* roulang page: index */
:root {
      --primary-color: #FF5A1F;
      --secondary-color: #0284C7;
      --bg-dark: #0F172A;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #CBD5E1;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      -webkit-font-smoothing: antialiased;
    }
    .custom-container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .hero-bg {
      background: linear-gradient(180deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.94) 100%), url('/assets/images/42fc4e3dd4e12908.png') center/cover no-repeat;
    }
    .sec-dark-bg {
      background: linear-gradient(180deg, rgba(15, 23, 42, 0.96) 0%, rgba(30, 41, 59, 0.98) 100%), url('/assets/images/e575b0ebab680b67.png') center/cover no-repeat;
    }
    .tech-border {
      border: 1px solid rgba(203, 213, 225, 0.4);
    }
    .tech-border-orange {
      border: 1px solid rgba(255, 90, 31, 0.4);
    }
    .flash-sale-badge {
      animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; }
      50% { opacity: .6; }
    }