/* roulang page: index */
:root {
      --primary: #1E293B;
      --accent: #0EA5E9;
      --accent-alt: #10B981;
      --bg-dark: #0F172A;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-body: #334155;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-body);
      background-color: var(--bg-light);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .hero-bg {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(30, 41, 59, 0.88)), url('/assets/images/3004313f3abaa433.jpg') center/cover no-repeat;
    }
    .dark-block-bg {
      background: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(8px);
    }
    .card-hover {
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 24px -10px rgba(15, 23, 42, 0.12);
      border-color: #0EA5E9;
    }
    .badge-clean {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.65rem;
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.025em;
      border-radius: 0.25rem;
    }