/* roulang page: index */
:root {
      --primary-dark: #111827;
      --secondary-dark: #1F2937;
      --accent-warm: #A37A58;
      --accent-teal: #0F766E;
      --bg-base: #F9F9F8;
      --text-main: #111827;
      --text-muted: #4B5563;
      --border-soft: #E5E7EB;
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }
    .custom-scroll-smooth {
      scroll-behavior: smooth;
    }
    .hero-mask {
      background: linear-gradient(180deg, rgba(17,24,39,0.78) 0%, rgba(17,24,39,0.94) 100%);
    }
    .text-accent {
      color: var(--accent-warm);
    }
    .bg-accent {
      background-color: var(--accent-warm);
    }
    .border-accent {
      border-color: var(--accent-warm);
    }