/* roulang page: index */
:root {
      --primary-color: #059669;
      --primary-hover: #10B981;
      --dark-surface: #0F172A;
      --bg-slate: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-soft: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--bg-slate);
      color: var(--text-main);
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .custom-hero-bg {
      background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(15, 23, 42, 0.86) 100%), url('/assets/images/1c3376b142572b78.jpg');
      background-size: cover;
      background-position: center;
    }
    .gradient-banner {
      background-image: linear-gradient(135deg, rgba(5, 150, 105, 0.92) 0%, rgba(15, 23, 42, 0.95) 100%), url('/assets/images/bac77ee5281a145d.jpg');
      background-size: cover;
      background-position: center;
    }
    .card-transition {
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-transition:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 30px -10px rgba(0, 0, 0, 0.08);
      border-color: #10B981;
    }
    .touch-target {
      min-width: 44px;
      min-height: 44px;
    }