/* roulang page: index */
:root {
      --primary: #0052D4;
      --primary-dark: #003EAA;
      --accent: #00D2D3;
      --bg-dark: #0B0F19;
      --bg-light: #F4F7FA;
      --text-main: #1A202C;
      --text-muted: #4A5568;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    }
    body {
      color: var(--text-main);
      background-color: #FFFFFF;
      overflow-x: hidden;
    }
    .hero-bg {
      background: linear-gradient(135deg, rgba(11, 15, 25, 0.92) 0%, rgba(0, 82, 212, 0.85) 100%), url('/assets/images/313471d73590254e.jpg') center/cover no-repeat;
    }
    .cases-bg {
      background: linear-gradient(180deg, #0B0F19 0%, #111827 100%);
    }
    .badge-outline {
      border: 1px solid rgba(0, 210, 211, 0.35);
      background: rgba(0, 210, 211, 0.08);
      color: #00D2D3;
    }
    .card-hover {
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .card-hover:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 24px -10px rgba(0, 82, 212, 0.15);
      border-color: #0052D4;
    }
    details summary::-webkit-details-marker {
      display: none;
    }