/* roulang page: index */
:root {
            --primary-blue: #1e3a8a;
            --accent-blue: #2563eb;
            --bg-light: #f8fafc;
            --text-main: #0f172a;
            --text-muted: #475569;
            --border-color: #e2e8f0;
            --card-shadow: 0 4px 20px -2px rgba(30, 58, 138, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.65;
        }
        .custom-card-shadow {
            box-shadow: var(--card-shadow);
        }
        .header-glass {
            background-color: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #e2e8f0;
        }

/* roulang page: category1 */
:root {
      --primary-blue: #1e3a8a;
      --accent-blue: #2563eb;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --card-shadow: 0 4px 20px -2px rgba(30, 58, 138, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.65;
    }
    .custom-card-shadow {
      box-shadow: var(--card-shadow);
    }
    .header-glass {
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid #e2e8f0;
    }
    .hero-badge-glow {
      box-shadow: 0 0 15px rgba(37, 99, 235, 0.35);
    }

/* roulang page: category2 */
:root {
            --primary-blue: #1e3a8a;
            --accent-blue: #2563eb;
            --bg-light: #f8fafc;
            --text-main: #0f172a;
            --text-muted: #475569;
            --border-color: #e2e8f0;
            --card-shadow: 0 4px 20px -2px rgba(30, 58, 138, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.65;
        }
        .custom-card-shadow {
            box-shadow: var(--card-shadow);
        }
        .header-glass {
            background-color: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #e2e8f0;
        }
        .hero-pattern {
            background-color: #f8fafc;
            background-image: radial-gradient(#cbd5e1 0.75px, transparent 0.75px);
            background-size: 16px 16px;
        }
        .dial-ring {
            stroke-dasharray: 283;
            stroke-dashoffset: 65;
            transition: stroke-dashoffset 1s ease-in-out;
        }